SERVICE VEHICLE OF TEXTILE MACHINE
BACKGROUND OF THE INVENTION
1. Field of the Invention
5 The present invention relates to a service vehicle
arranged in a textile machine.
2. Description of the Related Art
A service vehicle (yarn joining vehicle) configured
tobe able totravel to a plurality of yarn processing units
10 in a textile machine is conventionally known. The service
vehicle travels to the yarn processing unit where
disconnection of the yarn occurred for some reason, and
connects (joins) the disconnected yarn. The service
vehicle includes a reverse rotating roller adapted to
15 reversely rotate a cross-wound package in the yarn joining
operation. This type of service vehicle is described in
Japanese Unexamined Patent Publication No. 2013-67484
(patent document 1) .
Patent document1discloses a configuration in which
20 the reverse rotating roller can be approached to or
separated from a package (paragraph 0061). In patent
document 1, the reverse rotating roller can be approached
to or separated from the package by advancing or receding
a cylinder of an air actuator. In the specification of the
25 present application, a state in which the reverse rotating
roller is brought into contact with the package by the air
actuator (air cylinder) is referred to as a "contacting
position" of the reverse rotating roller, and a state in
which the reverse rotating roller is located away from the
30 package (state in which the reverse rotating roller is
accommodated in the service vehicle) by the air actuator
(air cylinder) is referred to as a "receded position" of
the reverse rotating roller.
BRIEF SUMMARY OF THE INVENTION
5 An object of the present invention is to provide a
service vehicle configured to be able to hold position of
thereverse rotatingrollerevenatthetimeofmaintenance,
and the like.
The present invention is based on the inventor's
10 finding that in conventional approaches, if the reverse
rotating roller is projected out when the service vehicle
is travelling with respect to a plurality of units, the
reverse rotating roller may make contact with a peripheral
member thus causing damage, etc. When the service vehicle
15 is travelling, the reverse rotating roller needs to be
accommodated in the service vehicle. Conventionally, the
air actuator holds the reverse rotating roller at the
receded position (accommodated state) when the service
vehicle does not perform the yarn joining operation.
20 For example, when maintenance ofthe service vehicle
is carried out, the supply of air to the air actuator is
sometimes stopped. In this case, the cylinder of the air
actuatorisina free state, andthe reverse rotating roller
cannot be held at the receded position. The reverse
25 rotating roller may project out toward the contacting
position than the recededposition (towardaposition close
to the package) due to its own weight. An operator needs
to have the reverse rotating roller, which has projected
out by its own weight, pushed in by hand to move the service
30 vehicle, and workability of the maintenance is poor.
In the conventional service vehicle, the reverse
rotating roller unintentionally (without an intention of
the operator) moves when the supply of air to the air
actuator is stopped such as at the time of maintenance, and
the workability of the maintenance is poor.
5 A service vehicle comprises a driving roller adapted
to rotate while making contact with a cross-wound package
to rotationally drive the cross-wound package; a first
driving section adaptedtomovethe driving roller between
a contacting position where the driving roller can make
10 contact with the cross-wound package, and a receded
position where the driving roller is receded from the
cross-wound package; and a holding section provided
independently from the first driving section and adapted
to hold the driving roller at a held position where the
15 driving roller is receded from the cross-wound package.
B R I E F DESCRIPTION OF THE DRAWINGS
F I G . 1 is a front view illustrating an overall
configuration of a fine spinning machine according to one
20 embodiment of the present invention;
F I G . 2 is a side view of a spinning unit and a yarn
joining vehicle;
F I G . 3 is a side view illustrating a state in which
a reverse rotating roller is held by a stopper;
25 F I G . 4 is a side view illustrating a state in which
the reverse rotating roller is released from the stopper;
F I G . 5 is a side view illustrating a state in which
holding of the reverse rotating roller by the stopper is
released;
F I G . 6 is a side view illustrating a state in which
yarn breakage occurred in the spinning unit;
FIG. 7 is a s i d e view i l l u s t r a t i n g a r e l e a s i n g s t e p ;
FIG. 8 is a s i d e view i l l u s t r a t i n g a r o l l e r advancing
s t e p and a package d r i v i n g s t e p ;
FIG. 9 is a s i d e view i l l u s t r a t i n g a yarn end guiding
5 s t e p ;
FIG. 10 is a s i d e view i l l u s t r a t i n g a yarn j o i n i n g
s t e p ; and
FIG. 11 is a s i d e view i l l u s t r a t i n g a r o l l e r r e c e d i n g
s t e p .
10
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
A d e s c r i p t i o n w i l l be made on a f i n e s p i n n i n g machine
s e r v i n g a s ayarnwindingmachineaccordingtoanembodiment
of t h e p r e s e n t i n v e n t i o n with r e f e r e n c e t o t h e drawings.
15 A f i n e s p i n n i n g machine ( s p i n n i n g machine) 1 i n c l u d e s a
p l u r a l i t y of s p i n n i n g u n i t s (yarn winding u n i t ) 2 a r r a n g e d
s i d e by s i d e , a y a r n j o i n i n g v e h i c l e ( s e r v i c e v e h i c l e ) 3,
a blower box 80, and a motor box 5.
A n e g a t i v e p r e s s u r e s o u r c e a d a p t e d t o s u p p l y n e g a t i v e
20 p r e s s u r e t o each s p i n n i n g u n i t 2, and t h e l i k e is arranged
i n t h e b l o w e r b o x 80. A d r i v e sourcecornrnontotheplurality
of t h e s p i n n i n g u n i t s 2 is arranged i n t h e motor box 5.
As i l l u s t r a t e d i n FIG. 2, each s p i n n i n g u n i t 2
i n c l u d e s , a s main components, a d r a f t device 7, a s p i n n i n g
25 d e v i c e ( y a r n s u p p l y i n g s e c t i o n ) 9, a yarn accumulating
d e v i c e 12, and a winding d e v i c e 13, which a r e arranged i n
o r d e r from upstream t o downstream. Each s p i n n i n g u n i t 2
s p i n s a f i b e r bundle 8 f e d from t h e d r a f t d e v i c e 7 w i t h t h e
s p i n n i n g device 9 t o generate a spl-ln yarn 10; and w i n d t h e
30 spun yarn 10 around a bobbin 48 with t h e winding device 13.
The bobbin 48, around which t h e spun yarn 10 is wound, is
referred to as a cross-wound package 45. In the present
specification, "upstream" and "downstream" refer to
upstream and downstream in a travelling direction of the
fiber bundle 8 and the spun yarn 10 at the time of normal
5 winding. The time of normal winding is the time when the
spun yarn 10 between the spinning device 9 and the winding
device 13 is in a continued state, and the cross-wound
package 45 is rotationally driven at a substantially
constant circumferential speed so that the spun yarn 10 is
10 wound at a substantially constant speed.
The draft device 7 includes fourdraftrollers, i-e.,
abackroller16, athirdroller17, amiddleroller19around
whicha rubber apronbelt18 is provided, anda front roller
20, in order from the upstream side. Each draft roller is
15 rotationally driven at a predetermined rotation speed.
The draft device 7 includes opposing rollers arranged with
respect to the draft rollers. The draft device 7 feeds a
sliver 15, which is the raw material of the fiber bundle
8, by sandwiching the sliver 15 between the draft rollers
20 and the opposing rollers, thus drafting the sliver 15 to
a predetermined width, and generating the fiber bundle 8.
The spinning device 9 is arranged immediately
downstream of the front roller 20. The fiber bundle 8
drafted by the draft device 7 is supplied to the spinning
25 device 9. The spinningdevice 9 appliestwiststothe fiber
bundle 8 supplied from the draft device 7 to generate the
spun yarn 10. A pneumatic spinning device that applies
twists to the fiber bundle 8 using whirling airflow is
adopted forthe spinningdevice 9 0 f t h e p r e s e n t e m b o d i r n e n t ~
30 As illustrated in FIG. 2, the winding device 13 is
arranged downstream ofthe spinning device 9. The winding
device 13 includes a cradle arm 71, a winding drum 72, and
a traverse guide 76.
The winding drum 72 is rotationally driven at a
constant rotation speed in one direction. The cradle arm
5 71 can rotatably support the bobbin 48 for winding the spun
yarn 10. The cradle arm 71 is swingably supported about
a supporting shaft 73. The cradle arm71canbring anouter
circumferential surface of the bobbin 48 (or the
cross-wound package 45) into contact with the winding drum
10 72 or separate the outer circumferential surface from the
winding drum 72 by being swung about the supporting shaft
73 while supporting the bobbin 48 (or cross-wound package
45) . The bobbin 48 (or cross-wound package 45) can be
driven to be rotated in one direction and the spun yarn 10
15 can be wound around the bobbin 48 (or cross-wound package
45) by bringing the outer circumferential surface of the
bobbin 48 (or the cross-woundpackage 45) into contact with
the rotating winding drum 72. In the following, the
direction in which the winding drum 72 rotates the
20 cross-wound package 45 is referred to as a "winding
direction". The winding drum 72 in the winding device 13
of each spinning unit 2 is rotationally driven
simultaneously by a drive source (not illustrated) common
to the plurality of the spinning units 2. The drive source
25 is arranged in the motor box 5.
The traverse guide 76 is configured to be capable of
engaging the spun yarn 10, and is reciprocated in a
directionparalleltoanaxialdirectionofthewindingdrum
72 by a driving means (not illustrated) . The driving means
30 is arranged in the motor box 5. By reciprocating the
traverse guide 76, to which the spun yarn 10 is engaged,
while r o t a t i n g t h e w i n d i n g d r u m 7 2 , the spun yarn 10 is wound
into the cross-wound package 45 while being traversed.
The yarn accumulating device 12 is arranged between
the spinning device 9 and the winding device 13. As
5 illustrated in FIG. 2, the yarn accumulating device 12
includes a yarn accumulating roller 14, and an electric
motor 25 adapted to rotationally drive the yarn
accumulating roller 14.
The yarnaccumulating roller14 is configuredtowind
10 a constant amount of spun yarn 10 around its outer
circumferential surface and temporarily accumulate the
spun yarn 10. When the yarn accumulating roller 14 is
rotatedatapredeterminedrotationspeedwiththe spun yarn
10 wound around the outer circumferential surface of the
15 yarn accumulating roller 14, the spun yarn 10 can be pulled
out at a predetermined speed from the spinning device 9 and
fed toward the downstream. The yarn accumulating device
12 can temporarily accumulate the spun yarn 10 on the yarn
accumulating roller 14, and thus functions as one type of
20 buffer between the spinning device 9 and the winding device
13. Thus, drawbacks (e. g., slackening of the spun yarn 10,
etc.) of when the spinning speed in the spinning device 9
and the winding speed in the winding device 13 do not
coincide with each other for some reason can be resolved.
25 A yarn quality measuring instrument 59 is arranged
between the spinning device 9 and the yarn accumulating
device 12. The spun yarn 10 from the spinning device 9
passes through the yarn quality measuring instrument 59
beforebeingwoundby the yarn accumulatingdevice 13. The
30 yarn qualitymeasuring instrument 59 monitors thickness of
the travelling spun yarn 10 with a capacitance sensor (not
i l l u s t r a t e d ) . Whendetectingayarndefectofthe spun yarn
10 (a p o r t i o n with abnormality i n t h i c k n e s s , etc. of t h e
spun yarn l o ) , t h e yarn q u a l i t y measuring instrument 59
t r a n s m i t s a y a r n d e f e c t d e t e c t i o n s i g n a l t o a u n i t
5 c o n t r o l l e r ( n o t i l l u s t r a t e d ) . The yarn q u a l i t y measuring
i n s t r u m e n t 59 is not l i m i t e d t o a c a p a c i t a n c e s e n s o r , and,
f o r example, may be c o n f i g u r e d t o monitor t h e t h i c k n e s s of
t h e s p u n y a r n 1 0 w i t h a l i g h t t r a n s m i s s i v e s e n s o r . The yarn
q u a l i t y m e a s u r i n g i n s t r u m e n t 5 9 m a y b e c o n f i g u r e d t o d e t e c t
10 a f o r e i g n s u b s t a n c e i n t h e spun yarn 10 a s a yarn d e f e c t .
A c u t t e r ( n o t i l l u s t r a t e d ) f o r immediately c u t t i n g
t h e spun yarn 10 when a yarn d e f e c t is d e t e c t e d by t h e yarn
q u a l i t y measuring i n s t r u m e n t 59 is arranged c l o s e t o t h e
yarn q u a l i t y measuring instrument 59. In p l a c e of t h e
15 c u t t e r , t h e s p i n n i n g u n i t 2 may s t o p supply of a i r t o t h e
s p i n n i n g d e v i c e 9 and i n t e r r u p t g e n e r a t i o n o f t h e spun yarn
10 t o c u t t h e spun yarn 10.
Next, a d e s c r i p t i o n w i l l bemade on t h e c o n f i g u r a t i o n
of t h e yarn j o i n i n g v e h i c l e ( s e r v i c e v e h i c l e ) 3.
2 0 As i l l u s t r a t e d i n FIG. 1, a yarn j o i n i n g v e h i c l e
t r a v e l l i n g r a i l 4 1 is l a i d along t h e d i r e c t i o n , i n which
t h e s p i n n i n g u n i t s 2 a r e arranged, on a frame 6 of t h e f i n e
s p i n n i n g machine 1. The yarn j o i n i n g v e h i c l e 3 is
c o n f i g u r e d t o t r a v e l on such yarn j o i n i n g v e h i c l e
25 t r a v e l l i n g r a i l 4 1 . S p e c i f i c a l l y , t h e yarn j o i n i n g
v e h i c l e 3 includestravellingwheels, a n d a v e h i c l e d r i v i n g
s e c t i o n ( n o t i l l u s t r a t e d ) adapted t o d r i v e t h e t r a v e l l i n g
wheels. The yarn j o i n i n g v e h i c l e 3 c a n t r a v e l with r e s p e c t
t o t h e p l u r a l i t y o f t h e s p i n n i n g u n i t s 2 (along t h e spinning
30 u n i t s 2 ) . The yarn j o i n i n g v e h i c l e 3 t r a v e l s t o t h e
s p i n n i n g u n i t 2 t h a t i s a s e r v i c i n g u n i t and s t o p s a t such
aposition, and then performs a predetermined service (yarn
joining operation in the present embodiment) on the
spinning unit 2 that is the servicing unit. The fine
spinning machine 1 of the present embodiment includes one
5 yarn joining vehicle 3, and is configured capable of
carrying out the service with respect to any one of the
spinning units 2 with the yarn joining vehicle 3. That is,
the yarn joining vehicle 3 of the present embodiment is
assigned to all of the plurality of the spinning units 2
10 arranged in the fine spinning machine 1 as an assigned
range.
As illustratedFIGS. 1and2, the yarn joiningvehicle
3 mainly includes a yarn joining device 43, a yarn catching
section (suction pipe 44 and suction mouth 46), a reverse
15 rotation drive mechanism 49, and a yarn guide (yarn guiding
member) 75. The yarn joining vehicle 3 includes a vehicle
control section (control section) (not illustrated)
adapted to control each component of the yarn joining
vehicle 3.
2 0 The suction pipe 44 and the suction mouth 46 are
respectively configuredto be vertically swingable with an
axis as a center. The suction pipe 44 is configured to
generate a suction airflow at its distal end to suck and
catch the spun yarn 10 fed from the spinning device 9 (see
25 FIG. 8). The suction mouth 46 is configured to generate
a suction airflow at its distal end to suck and catch the
spun yarn 10 from the cross-wound package 45 supported by
the winding device 13 (see FIG. 8). Each of the suction
pipe 44 and the suction mol-1-th 46 is swung while sucking and
30 catching the spun yarn 10 to guide the spun yarn 10 to a
position where the spun yarn 10 faces the front side of the
yarn j o i n i n g device 43 ( s t a t e of FIG. 9) . The movement of
t h e s u c t i o n pipe 4 4 and t h e s u c t i o n mouth 46 is c o n t r o l l e d
by t h e v e h i c l e c o n t r o l s e c t i o n .
The yarn j o i n i n g device 43 is c o n f i g u r e d t o j o i n t h e
5 spun y a r n 1 0 f r o m t h e s p i n n i n g d e v i c e 9 g u i d e d b y t h e s u c t i o n
p i p e 44 and t h e spun yarn 10 from t h e cross-wound package
45 g u i d e d b y t h e s u c t i o n mouth 46. The yarn j o i n i n g device
4 3 i s c o n f i g u r e d a s a s p l i c e r d e v i c e a d a p t e d t o forma j o i n t
by applying t w i s t s on t h e yarn ends by w h i r l i n g a i r f l o w .
10 The c o n f i g u r a t i o n of t h e yarn j o i n i n g device 43 is not
l i m i t e d t h e r e t o , and f o r example, may be a mechanical
k n o t t e r . The yarn j o i n i n g o p e r a t i o n by t h e yarn j o i n i n g
d e v i c e 4 3 i s c o n t r o l l e d b y t h e v e h i c l e c o n t r o l s e c t i o n . The
yarn j o i n i n g d e v i c e 4 3 i s l o c a t e d b e t w e e n t h e w i n d i n g d e v i c e
15 13 and t h e yarn accumulating device 12 i n t h e t r a v e l l i n g
d i r e c t i o n of t h e spun yarn 10 when t h e yarn j o i n i n g v e h i c l e
3 is stopped a t t h e s p i n n i n g u n i t 2.
The yarn j o i n i n g device 43 of t h e p r e s e n t embodiment
i s c o n f i g u r e d t o be movable i n a d i r e c t i o n of approaching
20 t o o r r e c e d i n g froma yarn path ( t r a v e l l i n g path o f t h e spun
y a r n 1 0 ) a t t h e time o f t h e normalwinding. The yarn j o i n i n g
device 43 performs t h e yarn j o i n i n g o p e r a t i o n a t a p o s i t i o n
( e . g . , p o s i t i o n i l l u s t r a t e d i n FIG. 10) l o c a t e d c l o s e t o
t h e yarn path a t t h e t i m e of t h e normal winding. When t h e
25 yarn j o i n i n g device 43 does not perform t h e yarn j o i n i n g
o p e r a t i o n , t h e yarn j o i n i n g d e v i c e 43 is receded t o and
maintained a t a p o s i t i o n ( e . g . , p o s i t i o n i l l u s t r a t e d i n FIG.
2) l o c a t e d away from t h e yarn path a t t h e t i m e of t h e normal
winding. The yarn joi ni ng v e h i c l e 3 i n c l u d e s a moving means
30 30 adapted t o move t h e yarn j o i n i n g device 43 a s d e s c r i b e d
above.
The yarn guide 35 is arranged downstream of the yarn
joining device 43. The yarn guide 35 is configured to be
movable between a "guiding position" and a "standby
position" by being swung about a swing shaft 32. When the
5 yarn guide 35 is moved to the "standby position", the yarn
guide 35 does not make contact with the spun yarn 10 (state
of F I G . 2). When the yarn guide 35 is moved to the "guiding
position", the yarn guide 35 is located at a position where
the yarn guide 35 interferes with the yarn path of the spun
10 yarn 10 at the time of the normal winding. The yarn guide
35 thus can guide the spun yarn 10 to the position where
the spun yarn 10 does not make contact with the traverse
guide 76 (state of F I G . 11).
The yarn joining vehicle 3 includes a cam mechanism
15 (second driving section) including a cam33 adaptedtomove
the yarn guide 35 between the "guiding position" and the
"standby position". Althouqhthedetailedillustrationof
the cam mechanism are omitted, the cam 33 is configured to
be driven and swungwithanaxis parallel tothe swing shaft
20 32 of the yarn guide 35 as a center, as illustrated in F I G .
2, etc. The yarn guide 35 is configured to be able to
(directly or indirectly) make contact with a
circumferential surface of the cam 33. According to such
configuration, when the cam 33 is rotationally driven, the
25 yarn guide 35 can be swung about the swing shaft 32 to move
between the "guidingposition" and the "standby position".
The rotation of the cam 33 is controlled by the vehicle
control section described above.
As illustrated in F I G . 2: etc., the reverse rotation
30 drive mechanism 49 includes a first link 61 and a second
link 62, a reverse rotating roller (driving roller) 63, and
a reverse rotating roller drive motor (not illustrated)
which is a drive source of the reverse rotating roller 63.
The reverserotating roller 63is rotationallydriven
by a drive force from the reverse rotating roller drive
5 motor (not illustrated). The operation of the reverse
rotating roller drive motor is controlled by the vehicle
control section.
One end of the first link 61 is swingably attached
to a housing main body of the yarn joining vehicle 3. The
10 second link 62 is swingably attached to the other end of
the first link 61. The reverse rotating roller 63 is
rotatably mounted on a distal end of the second link 62.
The yarn joining vehicle 3 includes an air cylinder (first
driving section) 66 for driving the first link 61 and the
15 second link 62. The distal end of a cylinder rod 64 of the
air cylinder 66 is coupled to the first link 61.
Asdescribedabove, the firstlink61, the secondlink
62, and the cylinder rod 64 configure a link mechanism.
When the air cylinder 66 is controlled to advance/recede,
20 the reverse rotating roller 63 can be moved in a direction
of approaching to or receding from the cross-wound package
45. The air cylinder 66 can move the reverse rotating
roller 63 between a "receded position" (e. g., position
illustrated in FIG. 2) where the reverse rotating roller
25 63 does not make contact with the cross-wound package 45,
and a "contacting position" (e. g., position illustrated in
FIG. 8) where the reverse rotating roller 63 can make
contact with the cross-wound package 45. The movement of
the air cylinder 66 is controlled by the vehicle control
30 section.
Characteristic structures of the invention of the
present application will now be described.
Whenperformingmaintenance, etc. ofthe yarn joining
vehicle 3, the yarn joining vehicle 3 may be switched to
a "non-operation" state. The "non-operation" state of the
5 yarn joining vehicle 3 refers to a state in which the yarn
joining vehicle 3 does not carry out the yarn joining
operation and does not travel, and does not, even if a yarn
breakage (disconnected state of the yarn) occurred in one
of the spinning units 2, travel in response to the yarn
10 breakage. Specifically, the "non-operation" state of the
yarn joining vehicle 3 includes a state in which the power
of the yarn joining vehicle 3 is turned OFF and/or a state
in which the yarn joining vehicle 3 is brought to an
emergency stop for some reason, etc.
15 Duringthe non-operation ofthe yarn joining vehicle
3, the supply of air to the air cylinder 66 is sometimes
stopped. In such a case, the cylinder rod 64 of the air
cylinder 66 is in a free state, and hence the reverse
rotating roller 63 cannot be held at the receded position
20 bytheair cylinder 66. The reverse rotatingroller 63thus
may project out toward the contacting position (position
close to the cross-wound package 45) than the receded
position by the own weight of the reverse rotating roller
63. As described above, when the reverse rotating roller
25 63 unintentionally (against an intension of the operator)
projects out, the workability of the maintenance, and the
like becomes poor.
In the present embodiment, the yarn joining vehicle
3 includes a stopper (holding section) 36 adapted to hold
30 the reverse rotating roller 63 at a predetermined position
independently from the air cylinder 66. With the stopper
36 arranged independently from the air cylinder 6 6 , the
reverse rotating roller 63 can be prevented from
unintentionally (against the intension of the operator)
projecting out toward the contacting position (position
5 close to the cross-wound package 45) even when the supply
of air to the air cylinder 66 is stopped.
FIG. 3 illustrates a state in which the stopper 36
holds the reverse rotating roller 6 3 . The position of the
reverse rotating roller 63 when held by the stopper 36 is
10 referred to as a "held position". The stopper 36 is
configured to hold the reverse rotating roller 63 at
substantially the same position as the receded position.
The receded position coincides with the held position in
the present embodiment. The following description will be
15 madeassumingthatthe s t o p p e r 3 6 h o l d s t h e r e v e r s e rotating
roller 63 at the "receded position".
A description will be made on the configuration of
holding the reverse rotating roller 63 by the stopper 36
with reference to FIGS. 3 to 5 . In FIGS. 3 to 5, the
20 configuration not required in the explanation is
appropriately omitted.
The stopper 36 is mounted on a main body side of the
yarn joining vehicle 3 . The "main body side" is a concept
that refers to a configuration that does not move in
25 mechanical conjunction with the movement of the reverse
rotating roller 63 among the configurations of the yarn
joining vehicle 3 . For example, since the yarn guide 35
is driven by a drive source (cam mechanism) different from
the reverse rotating roller 63; the yarn guide 35 and the
30 reverse rotating roller 63 do not move in mechanical
conjunction. Thus, the yarn guide 35 is included in the
configuration of the "main body side". In the present
embodiment, the stopper 36 is mounted on the yarn guide 35.
More specifically, the stopper 36is a plate spring fixedly
mounted on the yarn guide 35.
5 A contacted portion 37 that makes contact with the
stopper 36ismountedonthe reverse rotatingroller 63 side.
The phrase "mounted on the reverse rotating roller side"
means being mounted to move in mechanical conjunction with
the movement of the reverse rotating roller 63 by the air
10 cylinder 66. Specifically, the contacted portion 37 is
mounted on the first link 61. Thus, the contacted portion
37 moves in mechanical conjunction with the movement of the
reverse rotating roller 63. The contacted portion 37 is
a roller-like member that is freely rotatable with an axis
15 parallel to a rotation axis of the reverse rotating roller
63 as a center, and that is supported by the first link 61.
As illustrated in FIGS. 3 to 5, the contacted portion
37 is arranged at a position located away from a swing
supporting shaft 61a of the first link 61. Therefore, when
20 the reverse rotating roller 63 is moved between the receded
positionandthecontactingposition, thecontactedportion
37 moves in a predetermined arcuate movement trajectory
with the swing supporting shaft 61a as a center. The
movement trajectory of the contacted portion 37 is
25 indicated with a reference numeral 38 in FIG. 3, etc.
As described above, the stopper 36 of the present
embodiment is configuredas aplate spring. As illustrated
in FIGS. 3 to 5, the plate spring includes a bent portion
bent to form an "L" shape when sepn in the axial direction
30 of the reverse rotating roller 63. The L-shaped bent
portion is arranged to project out toward the movement
trajectory 38 of the contacted portion 37.
The stopper 36 is fixedly mounted on the yarn guide
35, as mentioned earlier. The yarn guide 35 is swung with
the swing shaft 32 as a center so as to be movable between
5 the "standby position" and the "guiding position". Thus,
the stopper 36 also moves when the yarn guide 35 is swung
with the swing shaft 32 as the center. The stopper 36 is
arranged so that when the yarn guide 35 is located at the
"standby position", the L-shaped bent portion is located
10 at the position interfering with the movement trajectory
38 of the contacted portion 37. FIGS. 3 and 4 illustrate
a state inwhich the yarnguide 35is locatedatthe "standby
position".
According to the above configuration, the stopper 36
15 can be brought into contact with the contacted portion 37
bypositioningthe yarn guide 35 at the "standby position".
FIG. 3 illustrates a state in which the contacted portion
37 is brought into contact with the stopper 36. When the
stopper 36 is brought into contact with the contacted
20 portion 37, the contacted portion 37 can be held at a
predetermined position by the stopper 36. Since the
contacted portion 37 is configured to move in mechanical
conjunction with the movement of the reverse rotating
roller 63, if the contacted portion 37 is held at a
25 predetermined position, the reverse rotating roller 63 is
also held at a predetermined position. Accordingly, the
reverse rotating roller 63 can be held at the held position
(recededpositioninthepresentembodiment) by the stopper
36.
30 As described earlier, the stopper 36 is configured
to hold the reverse rotating roller 63 at the "receded
p o s i t i o n " . That is, t h e stopper 36 is arranged t o make
contact with t h e c o n t a c t e d p o r t i o n 37 when the a i r c y l i n d e r
6 6 i s holding t h e reverse r o t a t i n g r o l l e r 63 a t the "receded
p o s i t i o n " ( s t a t e of FIG. 3 ) .
5 The reverse r o t a t i n g r o l l e r 63 canbe h e l d a t t h e held
p o s i t i o n (receded p o s i t i o n i n t h e present embodiment) by
t h e stopper 36 configured as described above. The stopper
36 is provided s e p a r a t e l y from and independent of t h e a i r
c y l i n d e r 66. Evenwhenthe supply of a i r t o t h e a i r c y l i n d e r
10 66 is stopped during t h e non-operation of t h e yarn j o i n i n g
vehicle 3, and t h e l i k e , and t h e reverse r o t a t i n g r o l l e r
63 c a n n o t b e h e l d a t t h e recededpositionbytheaircylinder
6 6 , t h e r e v e r s e r o t a t i n g r o l l e r 63 c a n b e h e l d a t t h e r e c e d e d
p o s i t i o n b y t h e stopper 36. Thus, according t o t h e present
15 embodiment, even when t h e supply of a i r t o t h e a i r c y l i n d e r
66 is stopped, t h e reverse r o t a t i n g r o l l e r 63 can be
prevented by t h e stopper 36 from p r o j e c t i n g out toward t h e
c o n t a c t i n g p o s i t i o n ( p o s i t i o n c l o s e t o t h e cross-wound
package 45) by i t s own weight.
20 The stopper 3 6 i s a r r a n g e d s o t h a t w h e n t h e yarnguide
35 is located a t t h e "guiding p o s i t i o n " ( s t a t e of FIG. 5 ) ,
the stopper 36 does not i n t e r f e r e with the movement
t r a j e c t o r y 38 of t h e contacted p o r t i o n 37. Therefore, i f
t h e yarn guide 35 i s located a t t h e "guiding position", t h e
25 reverse r o t a t i n g r o l l e r 63 can be f r e e l y moved. Thus, t h e
holding of t h e reverse r o t a t i n g r o l l e r 63 by the stopper
36 can be r e l e a s e d by p o s i t i o n i n g t h e yarn guide 35 a t t h e
"guiding p o s i t i o n " .
As described above, t h e yarn guide 35 on which t h e
30 stopper 36 is mounted is configured t o be driven by the cam
mechanism. The cam 33 of t h e cam mechanism is configured
to be rotationally driven by an electric motor (not
illustrated). Even if the supply of power to the electric
motor of the cam mechanism is stopped, the cam 33 does not
unintentionally rotate due to rotation resistance, and the
5 like of a shaft of the electric motor. Therefore, even if
the supply of power to the cam mechanism is stopped, the
yarn guide 35 does not unintentionally move (against the
intension of the operator) from the "standby position" to
the "guiding position". Thus, even if the supply of power
10 to the cam mechanism is stopped, the holding of the reverse
rotating roller 63 by the stopper 36 is not unintentionally
released.
According tothe present embodiment, a state in which
the holding ofthe reverse rotating roller 63 by the stopper
15 36 is activated can be maintained even under a situation
where the supply of power to the yarn joining vehicle 3 is
stopped. Therefore, according to such configuration, even
when the supply of air tothe air cylinder 66 (first driving
section) and the supply of power to the cam mechanism
20 (second driving section) are respectively stopped during
the non-operation (during maintenance and/or during
emergency stop, etc.) of the yarn joining vehicle 3, the
reverse rotating roller 63 can be held at the receded
position.
2 5 As describedabove, the stopper 36is configured from
a plate spring, and hence the stopper 36 can elastically
make contact with the contacted portion 37. Even when the
yarn guide 35 is located at the "standby position" (even
when the stopper 36 is located at the position where the
30 stopper 36 makes contact with the contacted portion 37),
by applying a force of a certain extent to the contacted
portion 37, t h e contacted p o r t i o n 37 can push away t h e
stopper 36 ( e l a s t i c a l l y deform t h e stopper 36 ( p l a t e
s p r i n g ) ) and move.
According t o such c o n f i g u r a t i o n , t h e operator can
5 move t h e reverse r o t a t i n g r o l l e r 63 by applying a force of
a c e r t a i n e x t e n t t o t h e reverse r o t a t i n g r o l l e r 63 evenwhen
t h e yarn guide 35 i s l o c a t e d a t t h e "standbyposition" (even
when t h e holding of t h e reverse r o t a t i n g r o l l e r 63 by t h e
stopper 36 is a c t i v a t e d ) . For example, t h e operator can
10 p u l l t h e reverse r o t a t i n g r o l l e r 63 held a t t h e receded
p o s i t i o n as i l l u s t r a t e d i n FIG. 3 by t h e stopper 36 toward
t h e c o n t a c t i n g p o s i t i o n (toward t h e l e f t s i d e of FIG. 3 ) .
The f o r c e is thereby applied on t h e stopper 36 ( p l a t e
s p r i n g ) , thus e l a s t i c a l l y deforming t h e stopper 36. As a
15 r e s u l t , t h e contacted p o r t i o n 37 can push away t h e stopper
36 ( t h e contacted p o r t i o n 37 can override t h e stopper 3 6 ) ,
and t h e reverse r o t a t i n g r o l l e r 63 can be pulled out toward
t h e c o n t a c t i n g p o s i t i o n ( o u t s i d e of a housing of t h e yarn
j o i n i n g v e h i c l e 3) ( s t a t e of FIG. 4 ) .
20 On t h e c o n t r a r y , t h e operator canpush i n t h e reverse
r o t a t i n g r o l l e r 63 toward t h e receded p o s i t i o n (toward the
r i g h t s i d e of FIG. 4 ) (toward i n s i d e of t h e housing of t h e
yarn j o i n i n g v e h i c l e 3 ) from the s t a t e of FIG. 4 . As t h e
reverse r o t a t i n g r o l l e r 63 i s pushed i n , t h e contacted
25 p o r t i o n 37 makes contact with the stopper 36 a t a c e r t a i n
time p o i n t . When t h e operator a p p l i e s a f o r c e t o f u r t h e r
push i n t h e reverse r o t a t i n g r o l l e r 63 from t h i s s t a t e , the
c o n t a c t e d p o r t i o n 27 can e l a s t i c a l l y deform t h e stopper 36
and push away t h e stopper 36 ( t h e contacted portion 37
30 o v e r r i d e s t h e stopper 3 6 ) . When t h e contacted portion 37
completely o v e r r i d e s t h e stopper 36, t h e reverse r o t a t i n g
r o l l e r 63 canbe held a t t h e r e c e d e d p o s i t i o n b y t h e stopper
36 ( s t a t e of FIG. 3 ) .
As described above, i n t h e present embodiment, t h e
stopper 36 is configured by a p l a t e spring, and hence the
5 operator canmove t h e r e v e r s e r o t a t i n g r o l l e r 63byapplying
a f o r c e of a c e r t a i n e x t e n t on t h e reverse r o t a t i n g r o l l e r
63 even when t h e holding of t h e reverse r o t a t i n g r o l l e r 63
by t h e stopper 36 is a c t i v a t e d (even when t h e yarn guide
35 is l o c a t e d a t t h e "standby p o s i t i o n " ) . The o p e r a t o r t h u s
10 can e a s i l y p u l l out t h e reverse r o t a t i n g r o l l e r 63 held by
t h e stopper 36 d u r i n g t h e m a i n t e n a n c e , e t c . , andcan e a s i l y
c a r r y out t h e maintenance, e t c . of t h e reverse r o t a t i n g
r o l l e r 63. When t h e maintenance of t h e reverse r o t a t i n g
r o l l e r 63 is f i n i s h e d , t h e operator can push i n t h e reverse
15 r o t a t i n g r o l l e r 63 t o r e t u r n t h e r e v e r s e r r o t a t i n g r o l l e r
63 t o t h e s t a t e i n which t h e reverse r o t a t i n g r o l l e r 63 is
held by t h e stopper 36.
I n t h e present embodiment, t h e contacted portion 37
is a r o t a t a b l e r o l l e r member. The r e s i s t a n c e when the
20 contacted p o r t i o n 37 pushes away t h e stopper 36 (when t h e
contacted p o r t i o n 37 o v e r r i d e s t h e stopper 36) is thereby
reduced. The operator can p u l l out t h e reverse r o t a t i n g
r o l l e r 63 w i t h a smaller f o r c e .
In t h e present embodiment, t h e yarn guide 35 i s
25 configured t o be driven by t h e cam 33 of t h e cam mechanism,
and t h e yarn guide 35 is configured t o make contact
( d i r e c t l y o r i n d i r e c t l y ) with t h e p e r i p h e r a l s u r f a c e o f t h e
cam33. Apredeterminedurging force i s a p p l i e d o n t h e y a r n
guide 35 i n order t o maintain t h e s t a t e i n which the yarn
30 guide 35 i s making contact with t h e p e r i p h e r a l s u r f a c e of
t h e cam 33. When t h e f o r c e is applied on t h e yarn guide
35 to work against the urging force, the yarn guide 35 can
be moved away from the cam 33 and swung with the swing shaft
32 as the center. That is, the yarn guide 35 can be moved
irrespective of the cam mechanism by applying the force on
5 the yarn guide 35. For example, when the operator applies
force to push down the yarn guide 35 with the yarn guide
35 located at the "standby position" (state of F I G . 3), the
yarn guide 35 can be swung to the "guiding position" and
the holding ofthe reverse rotating roller 63 by the stopper
10 36 can be released(state of F I G . 5).
When the pushing down on the yarn guide 35 is stopped,
the yarn guide 35 is returned to the original "standby
position" by the urging force mentioned above. When the
pushing down on the yarn guide 35 is stopped from the state
15 of F I G . 5, the state can be returned to the state (state
of F I G . 3) in which the holding of the reverse rotating
roller 63 by the stopper 36 is activated.
As described above, according to the present
embodiment, the holding of the reverse rotating roller 63
20 by the stopper 36 can be temporarily released through a
simple operation of pushing down the yarn guide 35. The
operator can freely release the holding of the reverse
rotating roller 63 by the stopper 36 by pushing down the
yarn guide 35 as needed during the maintenance, etc.
2 5 Further advantages of mounting the stopper 36 on the
yarn guide 35 in the present embodiment will now be
described.
According tothe stopper 36 ofthe present embodiment,
the reverse rotating roller 63 can be held at the receded
30 position even duringthe non-operation ofthe yarn joining
vehicle 3. However, duringthenormaloperationoftheyarn
joining vehicle 3, the reverse rotating roller 63 needs to
be moved between the receded position and the contac.ting
position by the air cylinder 66, and hence the holding of
the reverse rotating roller 63 by the stopper 36 needs to
5 be released.
In the yarn joining vehicle 3 of the present
embodiment, the stopper 36 is mounted on the yarn guide 35,
and thus the switching of the release/activation of the
holding of the reverse rotating roller 63 by the stopper
10 36 can be realized by the swinging of the yarn guide 35.
In other words, the configuration for switching the
release/activation of the holding by the stopper 36 does
not need to be separately provided. The yarn joining
vehicle 3 can be configured simply.
15 A description will be made on the switching of the
release/activation of the holding by the stopper 36 along
the flow of the yarn joining operation by the yarn joining
vehicle 3.
The yarn joining operation by the yarn joining
20 vehicle 3 is carried out in a certain spinning unit 2 when
the spun yarn 10 between the spinning device 9 and the
cross-woundpackage 45becomesdisconnectedforsomereason.
When the spun yarn 10 between the spinning device 9 and the
cross-wound package 45 becomes disconnected in a certain
25 spinning unit 2 as illustrated in FIG. 6 as an example, the
unit controller of such spinning unit 2 swingably drives
the cradle arm 71 to perform the control to move the
cross-wound package 45 away from the winding drum 72 and
operates a brake mechanism (not i 1 lustrated) arranged in
30 the winding device 13. The cross-wound package 45 thereby
stops the rotation.
Then, the unit controller transmits a control signal
to the yarn joining vehicle 3. The yarn joining vehicle
3 that has received the control signal travels on the yarn
joining vehicle travelling rail 41 to the spinning unit 2
5 (spinning unit to be serviced or servicing unit) and stops
thereat. Before the yarn joining vehicle 3 travels with
respect to the plurality of spinning units 2, the vehicle
control section of the yarn joining vehicle 3 controls the
moving means 30 such that the yarn joining device 43 is
10 receded to and maintained at a position located away from
the yarn path. The vehicle control section controls the
air cylinder 66 such that the reverse rotating roller 63
is receded to and maintained at the receded position.
Similarly, the vehicle control section controls the cam
15 mechanism such that the yarn guide 35 is moved to and held
at the standby position. Since each of the components is
moved to and maintained at a position located away from the
yarn path of the spun yarn 10 (position accommodated in the
yarn joining vehicle 3) before the yarn joining vehicle 3
20 travels, each ofthe componentsispreventedfromcolliding
with peripheral members during the travelling of the yarn
joining vehicle 3.
In a state immediately after the yarn joining vehicle
3 stops at the spinningunit2tobe serviced, the yarnguide
25 35 is located at the "standby position" as described above,
and thus the stopper 36 is located at a position where the
stopper 36 can make contact with the contacted portion 37.
That is, the holding of the reverse rotating roller 63 by
the stopper 36 is activated.
Next, the vehicle control section controls the cam
mechanism to move the yarn guide 35 to the guiding position
a s i l l u s t r a t e d i n FIG. 7. Accompanyingthemovement o f t h e
y a r n g u i d e 35, t h e s t o p p e r 3 6 i s m o v e d t o t h e p o s i t i o n w h e r e
t h e s t o p p e r 36 does not i n t e r f e r e with t h e movement
t r a j e c t o r y of t h e c o n t a c t e d p o r t i o n 37. That is, t h e
5 h o l d i n g o f t h e r e v e r s e r o t a t i n g r o l l e r 63 by t h e s t o p p e r
36 i s r e l e a s e d . The s t e p of moving t h e y a r n g u i d e 35 t o
t h e guiding p o s i t i o n a s d e s c r i b e d above is r e f e r r e d t o a s
" r e l e a s i n g s t e p " . T h e n o r m a l o p e r a t i o n o f t h e yarn j o i n i n g
v e h i c l e 3 is d e s c r i b e d h e r e i n , where t h e a i r is s u p p l i e d
10 t o t h e a i r c y l i n d e r 66 a s p e r normal, and t h e r e v e r s e
r o t a t i n g r o l l e r 63 c a n b e h e l d a t t h e receded p o s i t i o n by
t h e a i r c y l i n d e r 66. Therefore, even when t h e holding by
t h e s t o p p e r 36 is r e l e a s e d , t h e r e v e r s e r o t a t i n g r o l l e r 63
does not u n i n t e n t i o n a l l y p r o j e c t out toward t h e c o n t a c t i n g
15 p o s i t i o n ( p o s i t i o n c l o s e t o t h e cross-wound package 4 5 ) .
Then, t h e v e h i c l e c o n t r o l s e c t i o n swings t h e s u c t i o n
p i p e 44 t o t h e p o s i t i o n where t h e s u c t i o n pipe 44 can suck
and c a t c h t h e spun yarn 10 from t h e s p i n n i n g d e v i c e 9, and
a l s o swings t h e s u c t i o n mouth 46 t o t h e p o s i t i o n where t h e
20 s u c t i o n mouth 46 c a n s u c k t h e spun yarn 10 from t h e
cross-wound package 45, a s i l l u s t r a t e d i n FIG. 8. Almost
s i m u l t a n e o u s l y w i t h such o p e r a t i o n , t h e v e h i c l e c o n t r o l
s e c t i o n c o n t r o l s t h e a i r c y l i n d e r 6 6 t o advance t h e r e v e r s e
r o t a t i n g r o l l e r 63 t o t h e c o n t a c t i n g p o s i t i o n ( r o l l e r
25 advancing s t e p , s t a t e of FIG. 8 ) . As d e s c r i b e d e a r l i e r ,
t h e holding o f t h e r e v e r s e r o t a t i n g r o l l e r 63 by t h e s t o p p e r
36 is r e l e a s e d a t t h i s t i m e p o i n t . Therefore, t h e a i r
c y l i n d e r 66 can advance t h e r e v e r s e r o t a t i n g r o l l e r 63 t o
t h e c o n t a c t i n g p o s i t i o n .
Then, t h e v e h i c l e c o n t r o l s e c t i o n r o t a t i o n a l l y
d r i v e s t h e r e v e r s e r o t a t i n g r o l l e r 63 i n a d i r e c t i o n
o p p o s i t e t o t h e r o t a t i o n a l d i r e c t i o n of t h e winding drum
72. The cross-wound package 45 i s r o t a t i o n a l l y d r i v e n i n
a d i r e c t i o n o p p o s i t e t o t h e winding d i r e c t i o n ( h e r e i n a f t e r
r e f e r r e d t o a s u n w i n d i n g d i r e c t i o n ) ( p a c k a g e d r i v i n g s t e p ) .
5 Under t h i s s t a t e , by s u c k i n g t h e spun yarn 10 a t t h e s u r f a c e
of t h e cross-wound package 45 by t h e s u c t i o n mouth 46, t h e
spun yarn 10 is p u l l e d o u t from t h e cross-wound package 45
and caught by t h e s u c t i o n mouth 46.
The v e h i c l e c o n t r o l s e c t i o n then swings t h e s u c t i o n
10 p i p e 44 a n d t h e s u c t i o n m o u t h 4 6 w i t h t h e spun y a r n 1 0 caught
t h e r e b y t o guide t h e caught spun yarn 10 t o a p o s i t i o n where
t h e spun yarn 10 f a c e s t h e f r o n t s i d e of t h e yarn j o i n i n g
d e v i c e 43 ( y a r n end g u i d i n g s t e p , s t a t e of FIG. 9 ) .
At t h i s t i m e , t h e spun yarn 10 from t h e cross-wound
15 package 45 guided by t h e s u c t i o n mouth 46 p a s s e s through
a r e g i o n i n p r o x i m i t y t o t h e t r a v e r s e guide 76 ( s e e FIG.
9 ) . I f t h e spun yarn 10 makes c o n t a c t with t h e t r a v e r s e
guide 76, t h e spun yarn 10 is swung around by t h e t r a v e r s e
guide 76 and t h e g u i d i n g of t h e spun yarn 10 by t h e s u c t i o n
20 mouth 4 6 m a y p o s s i b l y f a i l . A s d e s c r i b e d e a r l i e r , t h e yarn
guide 3 5 i s l o c a t e d a t t h e " g u i d i n g p o s i t i o n " ( s t a t e of FIG.
9 ) , and t h u s even when t h e spun y a r n 1 0 f r o m t h e cross-wound
package 45 i s about t o make c o n t a c t with t h e t r a v e r s e guide
76, t h e y a r n g u i d e 35 p r e v e n t s t h e c o n t a c t of t h e spun yarn
25 10 and t h e t r a v e r s e guide 76. As d e s c r i b e d above, when t h e
cross-wound package 45 i s r o t a t i o n a l l y d r i v e n by t h e
r e v e r s e r o t a t i n g r o l l e r 63, t h e spun yarn 10 is guided by
t h e y a r n g u i d e 35 t o p r e v e n t t h e spun yarn 10 from t h e
cross-wound package 45 from making c o n t a c t with t-he
30 t r a v e r s e guide 76.
A f t e r t h e g u i d i n g of t h e spun yarn 10 by t h e s u c t i o n
pipe 44 and the suction mouth 46 is finished, the vehicle
control section stops the rotation ofthe reverse rotating
roller 63.
Next, the vehicle control section drives the moving
5 means 30 to move the yarn joining device 43 in a direction
of approaching the yarn path. The spun yarn 10 from the
spinning device 9 caughtbythe suction pipe 44 and the spun
yarn 10 from the cross-wound package 45 caught by the
suctionmouth 46 are therebyintroducedtothe yarn joining
10 device 43 (state of F I G . 10). The vehicle control section
operatesthe yarn joining device 43inthis state to connect
the spun yarn 10 from the spinning device 9 and the spun
yarn 10 from the cross-wound package 45 (servicing step).
After the yarn joining operation by the yarn joining
15 device 43 is finished, the vehicle control section drives
the moving means 30 to move the yarn joining device 43 in
a direction of moving away from the yarn path and also
controls the air cylinder 66 to move the reverse rotating
roller 63 to the receded position (roller receding step,
20 state of F I G . 11). At this time point, the holding of the
reverse rotating roller 63 by the stopper 36 remains
released. Therefore, when the reverse rotating roller 63
is moved to the receded position, the contacted portion 37
does not make contact with the stopper 36. The air cylinder
25 66 thus can recede the reverse rotating roller 63 to the
receded position.
Almost simultaneously with such operation, the unit
controller of the spinning unit 2 swings the cradle arm 71
to bring the outer circumferential surface of the
30 cross-wound package 45 into contact with the rotating
winding drum 72 again (state of F I G . 11) . The cross-wound
package 45 that has been stopped thus resumes the rotation
in the winding direction, whereby the winding of the spun
yarn 10 is resumed. In such a state, the yarn guide 35 is
located at the "guiding position", and hence the spun yarn
5 10 does not make contact with the traverse guide 76.
Lastly, the vehicle control section of the yarn
joining vehicle 3 drives the cam mechanism to move the yarn
guide 35 to the "standby position". The spun yarn 10 to
be wound around the cross-wound package 45 thus is caught
10 by the traverse guide 76. The state thereby returns to the
state before the occurrence of yarn breakage (state of FIG.
2) 1 whereby the normal winding can be resumed.
Accompanying the movement of the yarn guide 35 to the
"standby position", the stopper 36ismovedtotheposition
15 where the stopper 36 can make contact with the contacted
portion 37. In other words, the holding of the reverse
rotating roller 63 by the stopper 36 is activated (state
of FIG. 2). The step of moving the yarn guide 35 to the
standby position is referred to as the "activation step".
20 As described above, the yarn joining vehicle 3 is
configured to position the yarn guide 35 at the "guiding
position" to prevent the spun yarn 10 from making contact
with the traverse guide 76 when rotating the cross-wound
package 45 in the unwinding direction by the reverse
25 rotating roller 63. After the yarn joining operation by
the yarn joining device 43is finished, thereverse rotating
roller 63 is receded to the receded position and the yarn
guide 35 is positioned at the "standby position". As
described above, the yarn j oini ng vehicle 3 is conf igu-red
30 to move the yarn guide 35 in conjunction with the movement
of the reverse rotating roller 63.
In the present embodiment, the stopper 36 is mounted
on the yarn guide 35 so as to be movable in conjunction with
the movement of the reverse rotating roller 63. In other
words, when the reverse rotatingroller 63needstobemoved
5 by the air cylinder 66, the yarn guide 35 is moved to the
"guiding position" and the holding of the reverse rotating
roller 63 by the stopper 36 is released in conjunction with
themovement ofthe yarnguide 35. Accordingly, thereverse
rotating roller 63 can be moved by the air cylinder 66.
10 Under a state in which the reverse rotating roller 63 is
receded to the receded position by the air cylinder 66, the
yarn guide 35 is moved to the "standby position" and the
holding by the stopper 36 can be activated in conjunction
with the movement of the yarn guide 35. Therefore, even
15 when the supply of air to the air cylinder 66 is stopped
in such state, the reverse rotating roller 63 can be held
at the receded position by the stopper 36. In the present
embodiment, since the stopper 36 is mounted on the yarn
guide 35 c o n f i g u r e d t o m o v e i n c o n j u n c t i o n w i t h t h e m o v e m e n t
20 of the reverse rotating roller 63, the rational operation
in which the stopper 36 and the reverse rotating roller 63
are operated in conjunction with each other can be easily
realized.
The yarn joining vehicle 3 includes the reverse
25 rotating roller 63, the air cylinder 66, and the stopper
36. The reverse rotating roller 63 is adapted to rotate
while making contact with the cross-wound package 45 to
rotationally drive the cross-wound package 45. The air
cylinder 66 is adapted to move the reverse rotating roller
30 63 between the contacting position where the reverse
rotating roller 63 can make contact with the cross-wound
package 45, and t h e receded p o s i t i o n where t h e reverse
r o t a t i n g r o l l e r 63 is receded f r o m t h e cross-wound package
45. The stopper 36 i s provided independent of t h e a i r
c y l i n d e r 66 and a d a p t e d t o hold t h e reverse r o t a t i n g r o l l e r
5 63 a t t h e held p o s i t i o n located away from t h e cross-wound
package 45.
Thus, b y a r r a n g i n g t h e stopper 36 a d a p t e d t o hold t h e
reverse r o t a t i n g r o l l e r 63 a t t h e h e l d p o s i t i o n s e p a r a t e l y
from t h e a i r c y l i n d e r 66, t h e reverse r o t a t i n g r o l l e r 63
10 can be held a t t h e held p o s i t i o n even when t h e supply of
a i r t o t h e a i r c y l i n d e r 66 i s stopped.
The yarn j o i n i n g v e h i c l e 3 includes t h e contacted
portion 37 providedtomovein a m e c h a n i c a l c o n j u n c t i o n w i t h
t h e m o v e m e n t o f t h e r e v e r s e r o t a t i n g r o l l e r 6 3 . The stopper
15 36 is adapted t o make contact with t h e contacted portion
37. The stopper 36 is adapted t o e l a s t i c a l l y make contact
with t h e contacted p o r t i o n 37. Thus, t h e holding by t h e
stopper 36 can be r e l e a s e d by applying a f o r c e of a c e r t a i n
e x t e n t .
2 0 In t h e yarn j o i n i n g v e h i c l e 3, t h e reverse r o t a t i n g
r o l l e r 63 can be held a t the held p o s i t i o n by t h e stopper
36 during t h e non-operation of t h e yarn joining vehicle 3.
Thus, t h e reverse r o t a t i n g r o l l e r 63 canbe h e l d a t t h e held
p o s i t i o n even when supply of a i r t o t h e a i r c y l i n d e r 66 is
25 stopped during maintenance, e t c .
I n t h e yarn j o i n i n g v e h i c l e 3, t h e stopper 36 r e l e a s e s
t h e holding of t h e reverse r o t a t i n g r o l l e r 63 when t h e a i r
c y l i n d e r 66 moves t h e reverse r o t a t i n g r o l l e r 63. The a i r
c y l i n d e r 6 6 i s t h u s a b l e tomove t h e reverse rotat-ing r o l l e r
30 63.
The yarn j o i n i n g v e h i c l e 3 includes t h e yarn guide
35 adapted to guide the spun yarn 10 so as to prevent the
spun yarn 10 from the cross-wound package 45 from making
contact with the traverse guide 76 when the cross-wound
package 45 is rotationally driven by the reverse rotating
5 roller 63. The stopper 36 is configured to move in
conjunctionwiththemovement the yarnguide 35. Thenumber
of components thus can be reduced compared to when the
stopper 36 is driven alone.
The yarn joining vehicle 3 includes the cammechanism
10 adapted to move the yarn guide 35 to the standby position
and the guiding position, the standby position being the
position where the yarn guide 35 is located away from the
spun yarn 10 to be wound around the cross-wound package 45,
and the guiding position being the position where the yarn
15 guide 35 guides the spun yarn 10 from the cross-wound
package 45 to prevent the spun yarn 10 from making contact
withthetraverseguide 76. The stopper 36 releases holding
of the reverse rotating roller 63 when the cam mechanism
moves the yarn guide 35 from the standby position to the
20 guiding position.
By moving the yarn guide 35 to the guiding position
so that the spun yarn 10 from the cross-wound package 45
is prevented frombeingtraversedbythetraverse guide 76,
the cross-wound package 45 can be rotated by the reverse
25 rotating roller 63. Therefore, by providing the stopper
36 and the yarn guide 35 to be movable in conjunction with
each other, the stopper 36 can release the holding if the
reverse rotating roller 63 needs to be moved.
The yarn joining vehicle 3 includes the link
30 mechanism adapted to move the reverse rotating roller 63,
and the contacted portion 37 mounted on the link mechanism
and adapted t o move accompanying movement of t h e r e v e r s e
r o t a t i n g r o l l e r 63 i n t h e movement t r a j e c t o r y 38. The
s t o p p e r 36 is mounted on t h e y a r n g u i d e 35 and is adapted
t o move i n c o n j u n c t i o n w i t h t h e movement of t h e yarn guide
5 35. When t h e yarn guide 35 i s l o c a t e d a t t h e standby
p o s i t i o n , t h e s t o p p e r 3 6 i s p o s i t i o n e d a t t h e p o s i t i o n w h e r e
t h e s t o p p e r 36 i n t e r f e r e s with t h e movement t r a j e c t o r y 38
of t h e c o n t a c t e d p o r t i o n 37. When t h e y a r n g u i d e 35 is
l o c a t e d a t t h e guiding p o s i t i o n , t h e s t o p p e r 36 is
10 p o s i t i o n e d a t t h e p o s i t i o n where t h e s t o p p e r 36 does not
i n t e r f e r e with t h e movement t r a j e c t o r y 38 o f t h e c o n t a c t e d
p o r t i o n 37. The r e v e r s e r o t a t i n g r o l l e r 63 is adapted t o
beheldattheheldpositionbythe s t o p p e r 36makingcontact
with t h e c o n t a c t e d p o r t i o n 37.
15 Since t h e s t o p p e r 36 i s mounted on t h e yarn guide 25,
t h e s t o p p e r 36 can be r a t i o n a l l y moved i n c o n j u n c t i o n with
t h e movement of t h e y a r n g u i d e 35.
The v e h i c l e c o n t r o l s e c t i o n of t h e yarn j o i n i n g
v e h i c l e 3 s e q u e n t i a l l y e x e c u t e s t h e r e l e a s i n g s t e p , t h e
20 r o l l e r advancing s t e p , t h e p a c k a g e d r i v i n g s t e p , t h e r o l l e r
r e c e d i n g s t e p , and t h e a c t i v a t i o n s t e p i n such o r d e r . In
t h e r e l e a s i n g s t e p , t h e y a r n g u i d e 35 i s moved from t h e
standby p o s i t i o n t o t h e guiding p o s i t i o n . I n t h e r o l l e r
advancing s t e p , t h e r e v e r s e r o t a t i n g r o l l e r 63 i s moved t o
25 t h e c o n t a c t i n g p o s i t i o n . In t h e package d r i v i n g s t e p , t h e
cross-wound package 45 is r o t a t i o n a l l y d r i v e n by t h e
r e v e r s e r o t a t i n g r o l l e r 63. In t h e r o l l e r receding s t e p ,
t h e r e v e r s e r o t a t i n g r o l l e r 63 i s moved f r o m t h e c o n t a c t i n g
p o s i t i o n t o t h e receded p o s i t i o n . In t h e a c t i v a t i o n s t e p ,
30 t h e y a r n g u i d e 35 i s moved from t h e guiding p o s i t i o n t o t h e
standby p o s i t i o n .
I f t h e cross-wound package 45 needs t o be
r o t a t i o n a l l y d r i v e n by t h e r e v e r s e r o t a t i n g r o l l e r 63, t h e
y a r n g u i d e 35 i s moved t o t h e guiding p o s i t i o n so t h a t t h e
spun yarn 10 from t h e cross-wound package 45 does not make
5 c o n t a c t with t h e t r a v e r s e guide 76. The holding of t h e
r e v e r s e r o t a t i n g r o l l e r 63 by t h e s t o p p e r 36 is r e l e a s e d
accompanying t h e movement of t h e y a r n g u i d e 35, and t h u s
t h e r e v e r s e r o t a t i n g r o l l e r 63 can be moved t o t h e
c o n t a c t i n g p o s i t i o n and t h e cross~woundp ackage 45 can be
10 r o t a t i o n a l l y d r i v e n . The y a r n g u i d e 35, t h e s t o p p e r 36,
and t h e r e v e r s e r o t a t i n g r o l l e r 63 can be r a t i o n a l l y moved
i n c o n j u n c t i o n with each o t h e r .
The f i n e spinningmachine 1 i n c l u d e s t h e yarn j o i n i n g
v e h i c l e 3, a n d a p l u r a l i t y o f s p i n n i n g u n i t s 2, e a c h o f w h i c h
15 is adapted t o wind t h e spun yarn 10 t o form t h e cross-wound
package 45. In t h e f i n e s p i n n i n g machine 1, t h e yarn
j o i n i n g v e h i c l e 3 is adapted t o be a s s i g n e d w i t h a l l of t h e
p l u r a l i t y of t h e s p i n n i n g u n i t s 2 a s an a s s i g n e d range, and
i s adapted t o perform t h e yarn j o i n i n g o p e r a t i o n with
20 r e s p e c t t o t h e s e r v i c i n g u n i t , t h e s e r v i c i n g u n i t b e i n g one
o f t h e yarnwinding u n i t s 2 b e l o n g i n g t o t h e a s s i g n e d r a n g e .
The r e v e r s e r o t a t i n g r o l l e r 63 is adapted t o r o t a t i o n a l l y
d r i v e t h e cross-wound package 45 of t h e s e r v i c i n g u n i t 2
i n t h e unwinding d i r e c t i o n . The c o n f i g u r a t i o n f o r d r i v i n g
25 t h e cross-wound package 45 i n t h e unwinding d i r e c t i o n does
not need t o be provided i n each s p i n n i n g u n i t 2, and thus
t h e c o n f i g u r a t i o n o f t h e e n t i r e f i n e s p i n n i n g m a c h i n e l c a n
be s i m p l i f i e d .
In t h e f i n e s p i n n i n g machine I., t h e yarn j o i n i n g
30 v e h i c l e 3 i n c l u d e s t h e yarn j o i n i n g d e v i c e 43 adapted t o
perform t h e yarn j o i n i n g o p e r a t i o n with r e s p e c t t o t h e
target servicing unit 2. The air cylinder 66 is adapted
to move the reverse rotating roller 63 to the contacting
positionprior toperformance ofthe yarn joining operation
by the yarn joining device 43.
5 In order to perform the yarn joining operation, the
cross-woundpackage 45 needstobe rotatedinthe unwinding
direction to pull out the spun yarn 10 f.rom the cross-wound
package 45. According to the above-described
configuration, the cross-wound package 45 can be rotated
10 in the unwinding direction, as needed, by the reverse
rotating roller 63 of the yarn joining vehicle 3.
The preferred embodiments of the present invention
have been described above, but the configurations may be
modified as below, for example.
15 The invention of the present application is not
limited to the fine spinning machine, and can also be
applied to other types of textile machines including the
service vehicle (yarn joining vehicle).
In the embodiment described above, the holding
20 section (stopper) 36is aplate spring. The stopper 36thus
can be elastically brought into contact with the contacted
portion 37. The holding section 36 is not limited to the
plate spring, and for example, the stopper 36 may be urged
toward the contacted portion 37 with a torsion spring, and
25 the like. In place of or in addition to the configuration
of elastically bringing the stopper 36 into contact with
the contacted portion 37, the contacted portion 37 may be
elastically brought into contact with the stopper 36. For
example, the contacted portion 37 ma.y be configured to be
30 urged toward the stopper 36 by a compression coil spring.
The configuration of elastically bringing the
holding section (stopper) 36 and the contacted portion 37
into contact with each other can be omitted.
In the embodiment described above, the stopper 36 is
mountedontheyarnguidingmember (yarnguide) 35. However,
5 the stopper 36 may be separately provided, independent of
the yarn guiding member 35. In this case, the yarn guiding
member may be omitted.
The shape and/or the position, and the like of the
stopper 36 is not limited to those described in the above
10 description and illustrated in the drawings, and can be
appropriately modified.
In the embodiment described above, the contacted
portion 37 is provided separatelyfromthe reverse rotating
roller 63, butthe reverse rotatingroller 63mayalso serve
15 as the contacted portion 37. In other words, the reverse
rotating roller 63 may directly make contact with the
stopper 36.
In the embodimentdescribedabove, theposition (held
position) where the stopper 36 holds the reverse rotating
20 roller 63 coincides with the receded position. However,
theheldpositionmaynotcoincidewiththerecededposition.
The held position where the stopper 36 holds the reverse
rotating roller 63 merely needs to be a position where the
reverse rotating roller 63 is receded fromthe cross-wound
25 package 45 (position closer to the yarn joining vehicle 3
than the contacting position).
The fine spinning machine 1 of the embodiment
described above includes one yarn joining vehicle 3, but
the textile machine may include a plu-ra-lity of service
30 vehicles. In this case, the plurality of service vehicles
can be assigned to the yarn winding units to be serviced.
That is, each s e r v i c e v e h i c l e may be adapted t o be assigned
t o o n l y a p o r t i o n o f t h e p l u r a l i t y o f t h e yarn winding u n i t s
arranged i n t h e t e x t i l e machine as an assigned range.
According t o a f i r s t aspect of t h e invention of the
5 p r e s e n t a p p l i c a t i o n , a s e r v i c e vehicle includes a driving
r o l l e r , a f i r s t d r i v i n g s e c t i o n , a n d a h o l d i n g s e c t i o n . The
d r i v i n g r o l l e r is adapted t o r o t a t e while making contact
with a cross-wound package t o r o t a t i o n a l l y d r i v e the
cross-woundpackage. The f i r s t d r i v i n g s e c t i o n is adapted
10 t o move t h e d r i v i n g r o l l e r between a c o n t a c t i n g p o s i t i o n
where t h e d r i v i n g r o l l e r can make contact with the
cross-wound package, and a receded p o s i t i o n where t h e
d r i v i n g r o l l e r is receded from t h e cross-wound package.
The holding s e c t i o n is provided independently from t h e
15 firstdrivingsectionandadaptedtoholdthedrivingroller
a t a held p o s i t i o n where t h e d r i v i n g r o l l e r is receded from
t h e cross-wound package.
Since t h e holding s e c t i o n a d a p t e d t o hold t h e driving
r o l l e r a t t h e h e l d p o s i t i o n i s provided s e p a r a t e l y fromthe
20 f i r s t d r i v i n g s e c t i o n , t h e d r i v i n g r o l l e r can be held a t
t h e held p o s i t i o n even when t h e supply of a d r i v e f o r c e t o
t h e f i r s t d r i v i n g s e c t i o n is stopped. The held p o s i t i o n
and t h e receded p o s i t i o n may coincide with each o t h e r , or
t h e h e l d p o s i t i o n and t h e r e c e d e d p o s i t i o n m a y b e d i f f e r e n t
25 from each o t h e r .
The c o n f i g u r a t i o n of t h e above s e r v i c e v e h i c l e is
p a r t i c u l a r l y s u i t a b l e when a p p l i e d t o a s e r v i c e v e h i c l e i n
which t h e f i r s t d r i v i n g s e c t i o n is an a i r c y l i n d e r .
I f t h e f i r s t d-riving s e c t i o n i s t h e a i r c y l i n d e r , the
30 d r i v i n g r o l l e r cannot be held a t t h e receded p o s i t i o n by
t h e f i r s t d r i v i n g s e c t i o n when t h e supply of a i r t o the a i r
c y l i n d e r i s stopped. Thus, by arranging t h e holding
s e c t i o n s e p a r a t e l y from t h e f i r s t d r i v i n g s e c t i o n ( a i r
c y l i n d e r ) a s d e s c r i b e d a b o v e , thedrivingrollercanbeheld
attheheldpositionevenwhenthe supply of a i r t o t h e f i r s t
5 d r i v i n g s e c t i o n i s stopped.
The s e r v i c e v e h i c l e p r e f e r a b l y includes a contacted
portion provided t o move i n a mechanical conjunction with
a movement of t h e d r i v i n g r o l l e r . The holding s e c t i o n is
a s t o p p e r a d a p t e d t o m a k e c o n t a c t w i t h t h e c o n t a c t e d p o r t i o n .
10 A t l e a s t one of t h e contacted p o r t i o n and t h e stopper i s
adapted t o e l a s t i c a l l y make contact w i t h a n o t h e r of t h e
contacted p o r t i o n and t h e s t o p p e r .
The holding by t h e s t o p p e r t h u s can be r e l e a s e d by
applying a f o r c e of a c e r t a i n e x t e n t .
15 In t h e s e r v i c e v e h i c l e described above, t h e holding
s e c t i o n is p r e f e r a b l y a d a p t e d t o b e able t o h o l d t h e driving
r o l l e r a t t h e held p o s i t i o n during non-operation of t h e
s e r v i c e v e h i c l e .
The t i m e of non-operation r e f e r s t o a s t a t e i n which
20 t h e s e r v i c e v e h i c l e does not c a r r y out a normal operation
s u c h a s t h e t i m e o f m a i n t e n a n c e a n d / o r p o w e r O F F . According
t o t h e c o n f i g u r a t i o n described above, t h e d r i v i n g r o l l e r
can be held a t t h e held p o s i t i o n even when t h e supply of
t h e d r i v e f o r c e t o t h e f i r s t d r i v i n g s e c t i o n i s stoppedsuch
25 as a t t h e time of maintenance.
In t h e s e r v i c e v e h i c l e described above, t h e holding
s e c t i o n i s p r e f e r a b l y a d a p t e d t o r e l e a s e t h e holding o f t h e
d r i v i n g r o l l e r when t h e f i r s t d r i v i n g s e c t i o n moves the
d r i v i n g r o l l e r . The f i r s t d r i v i n g s e c t i o n thus can move
30 t h e d r i v i n g r o l l e r .
The s e r v i c e v e h i c l e f u r t h e r p r e f e r a b l y includes a
yarn guiding member adapted t o guide a yarn from t h e
cross-woundpackage topreventthe yarn frommaking c o n t a c t
w i t h a t r a v e r s e guide when r o t a t i o n a l l y d r i v i n g t h e
cross-wound package by t h e d r i v i n g r o l l e r . The holding
5 s e c t i o n is adapted t o move i n c o n j u n c t i o n w i t h a movement
of t h e y a r n g u i d i n g member. The number of components thus
can be reduced compared t o when t h e holding s e c t i o n is
d r i v e n a l o n e .
The s e r v i c e v e h i c l e f u r t h e r p r e f e r a b l y i n c l u d e s a
10 second d r i v i n g s e c t i o n adapted t o move t h e yarn guiding
member t o a standby p o s i t i o n and a g u i d i n g p o s i t i o n , t h e
standby p o s i t i o n being a p o s i t i o n where t h e yarn guiding
member is l o c a t e d away from a yarn t o be wound around t h e
cross-wound package, and t h e guiding p o s i t i o n being a
15 p o s i t i o n where t h e yarn g u i d i n g m e m b e r g u i d e s t h e yarn from
t h e cross-wound package t o prevent t h e yarn from making
c o n t a c t w i t h t h e t r a v e r s e g u i d e . The holding s e c t i o n is
adapted t o r e l e a s e holding of t h e d r i v i n g r o l l e r when t h e
second d r i v i n g s e c t i o n moves t h e yarn guiding member from
20 t h e standby p o s i t i o n t o t h e guiding p o s i t i o n .
When t h e yarn guiding member is moved t o t h e guiding
p o s i t i o n , and t h e yarn from t h e cross-wound package i s
prevented from being t r a v e r s e d by t h e t r a v e r s e guide, t h e
cross-wound package can be r o t a t e d by t h e d r i v i n g r o l l e r .
25 Byprovidingtheholdingsectionandtheyarnguidingmember
t o be movable i n c o n j u n c t i o n w i t h each o t h e r , t h e holding
b y t h e holding s e c t i o n c a n b e r e l e a s e d i f t h e d r i v i n g r o l l e r
needs t o be moved.
The s e r v i ce vehi cle f u r t h e r p r e f e r a b l y i n c l u d e s a
30 l i n k mechanism adapted t o move t h e d r i v i n g r o l l e r ; and a
contactedportionmountedonthelinkmechanismand adapted
t o move accompanying movement of t h e d r i v i n g r o l l e r i n a
predeterminedmovementtrajectory. The holding s e c t i o n is
a stopper mounted on t h e yarn guiding member and adapted
tomove i n c o n j u n c t i o n w i t h themovement o f t h e yarn guiding
5 member. When t h e yarn guiding member i s located a t the
standby p o s i t i o n , t h e stopper is positioned a t a p o s i t i o n
where t h e stopper i n t e r f e r e s with t h e movement t r a j e c t o r y
of t h e contacted p o r t i o n . When t h e yarn guiding member is
located a t t h e guiding p o s i t i o n , t h e stopper i s positioned
10 a t a p o s i t i o n where t h e stopper does not i n t e r f e r e with the
movement t r a j e c t o r y o f t h e c o n t a c t e d p o r t i o n . The driving
r o l l e r is adapted t o be held a t t h e held p o s i t i o n by the
stopper making contact with t h e contacted p o r t i o n .
Since t h e s t o p p e r ( h o l d i n g s e c t i o n ) i s m o u n t e d o n t h e
15 yarn guiding member, t h e stopper can be r a t i o n a l l y moved
i n c o n j u n c t i o n w i t h t h e m o v e m e n t o f t h e y a r n g u i d i n g m e m b e r .
The yarn j o i n i n g v e h i c l e furtherpreferablyincludes
a c o n t r o l s e c t i o n adapted t o c o n t r o l movements of t h e yarn
guiding member and t h e d r i v i n g r o l l e r by s e q u e n t i a l l y
20 executing a r e l e a s i n g s t e p , a r o l l e r advancing s t e p , a
package d r i v i n g s t e p , a r o l l e r receding s t e p , and an
a c t i v a t i o n s t e p . In t h e r e l e a s i n g s t e p , t h e yarn guiding
member is moved from t h e standby p o s i t i o n t o t h e guiding
p o s i t i o n . In t h e r o l l e r advancing s t e p , t h e d r i v i n g r o l l e r
25 ismovedtothecontactingposition. I n t h e p a c k a g e d r i v i n g
s t e p , t h e cross-woundpackage is r o t a t i o n a l l y d r i v e n b y t h e
d r i v i n g r o l l e r . In t h e r o l l e r receding p o s i t i o n , t h e
d r i v i n g r o l l e r is moved fromthe c o n t a c t i n g p o s i t i o n t o t h e
r e c e d e d p o s i t i o n . I n t h e a c t i v a t i o n s t e p , t h e ya.rnguiding
30 member i s moved from t h e guiding p o s i t i o n t o t h e standby
p o s i t i o n .
When t h e r e is a need t o r o t a t i o n a l l y d r i v e t h e
cross-woundpackageby the d r i v i n g r o l l e r , t h e yarnguiding
member is moved t o t h e guiding p o s i t i o n t o prevent t h e yarn
from t h e cross-wound package from making contact with t h e
5 t r a v e r s e guide. Accompanying such movement, s i n c e the
holding of the d r i v i n g r o l l e r by the holding s e c t i o n
( s t o p p e r ) i s r e l e a s e d , t h e d r i v i n g r o l l e r i s moved t o t h e
c o n t a c t i n g p o s i t i o n enabling t h e r o t a t i o n a l d r i v e of t h e
cross-wound package. The yarn guidingmember, t h e stopper,
10 and t h e d r i v i n g r o l l e r can be r a t i o n a l l y moved i n
conjunction w i t h one another.
According t o another aspect of t h e invention of t h e
present a p p l i c a t i o n , a t e x t i l e m a c h i n e include s t h e s e r v i c e
v e h i c l e , and a p l u r a l i t y of yarn winding u n i t s , each of
15 which i s a d a p t e d t o w i n d a y a r n t o formacross-woundpackage.
The s e r v i c e v e h i c l e is adapted t o be assigned w i t h a l l or
a p o r t i o n of t h e p l u r a l i t y of t h e yarn winding u n i t s as an
assigned range, and is adapted t o perform s e r v i c e with
r e s p e c t t o a serving u n i t , t h e s e r v i c i n g u n i t being one of
20 theyarnwindingunitsbelongingtotheassignedrange. The
d r i v i n g r o l l e r i s adapted t o r o t a t i o n a l l y d r i v e t h e
cross-wound package of t h e s e r v i c i n g u n i t i n an unwinding
d i r e c t i o n .
With t h e c o n f i g u r a t i o n of r o t a t i o n a l l y d r i v i n g the
25 cross-wound package i n t h e unwinding d i r e c t i o n by the
d r i v i n g r o l l e r of t h e s e r v i c e v e h i c l e , the c o n f i g u r a t i o n
f o r d r i v i n g t h e cross-wound package i n t h e unwinding
d i r e c t i o n does not need t o be provided i n each yarn winding
u n i t . The configuration o f t h e
30 can be s i m p l i f i e d .
In t h e t e x t i l e machine described above, t h e s e r v i c e
v e h i c l e includes a yarn j o i n i n g device adapted t o perform
a y a r n j o i n i n g o p e r a t i o n w i t h r e s p e c t t o t h e s e r v i c i n g u n i t .
The f i r s t d r i v i n g s e c t i o n i s adapted t o move t h e d r i v i n g
r o l l e r t o t h e c o n t a c t i n g p o s i t i o n p r i o r t o performance of
5 t h e yarn j o i n i n g operation by t h e yarn j o i n i n g device
When performing t h e yarn j o i n i n g o p e r a t i o n , the
cross-wound package needs t o be r o t a t e d i n t h e unwinding
d i r e c t i o n t o p u l l out t h e yarn of t h e cross-wound package.
According t o t h e c o n f i g u r a t i o n d e s c r i b e d above, t h e
10 cross-wound package can be r o t a t e d i n t h e unwinding
d i r e c t i o n when necessary by t h e d r i v i n g r o l l e r of t h e
s e r v i c e v e h i c l e .
WE CLAIM:
1. A s e r v i c e vehicle comprising:
a d r i v i n g r o l l e r adapted t o r o t a t e while making
contact with a cross-wound package t o r o t a t i o n a l l y d r i v e
5 t h e cross-wound package;
a f i r s t d r i v i n g s e c t i o n adapted t o move t h e driving
r o l l e r between a c o n t a c t i n g p o s i t i o n where t h e driving
r o l l e r can make contact with t h e cross-wound package, and
a r e c e d e d p o s i t i o n w h e r e t h e d r i v i n g r o l l e r is receded from
10 t h e cross-wound package; and
a holding s e c t i o n provided independently from t h e
firstdrivingsectionandadaptedtoholdthedrivingroller
a t a held p o s i t i o n where t h e d r i v i n g r o l l e r is receded from
t h e cross-wound package.
15
2. The s e r v i c e v e h i c l e according t o c l a i m l , wherein
t h e f i r s t d r i v i n g s e c t i o n is an a i r c y l i n d e r .
3 . The s e r v i c e vehicle according t o claim 1 or claim
20 2, f u r t h e r comprising a contacted p o r t i o n provided t o move
i n a mechanical conjunction w i t h a movement of t h e driving
r o l l e r ,
wherein t h e holding s e c t i o n is a stopper adapted t o
make contact with t h e contacted p o r t i o n , and
25 a t l e a s t one o f t h e c o n t a c t e d p o r t i o n and t h e stopper
is adapted t o e l a s t i c a l l y make contact with another of the
contacted p o r t i o n and t h e s t o p p e r .
4. The s e r v i c e v e h i c l e according t o any one of claim
30 1 through claim 3, wherein t h e holding s e c t i o n is adapted
t o hold t h e d r i v i n g r o l l e r a t t h e held p o s i t i o n during
non-operation of t h e s e r v i c e v e h i c l e .
5. The s e r v i c e v e h i c l e according t o any one of claim
1 through claim 4 , wherein t h e holding s e c t i o n is adapted
5 t o r e l e a s e holding of t h e d r i v i n g r o l l e r when t h e f i r s t
d r i v i n g s e c t i o n moves t h e d r i v i n g r o l l e r toward t h e
c o n t a c t i n g p o s i t i o n .
6. The s e r v i c e v e h i c l e according t o anyone of claim
10 1 through claim 5, f u r t h e r comprising a yarn guiding member
adapted t o guide a yarn from t h e cross-wound package t o
prevent t h e yarn from making contact with a t r a v e r s e guide
when r o t a t i o n a l l y d r i v i n g t h e cross-wound package by t h e
d r i v i n g r o l l e r ,
15 wherein t h e holding s e c t i o n i s adapted t o move i n
conjunction w i t h a movement of t h e yarn guiding member.
7 . The s e r v i c e v e h i c l e according t o c l a i m 6 , f u r t h e r
comprisinga seconddrivingsectionadaptedtomovetheyarn
20 guidingmemberto a s t a n d b y p o s i t i o n a n d a g u i d i n g p o s i t i o n ,
t h e standbypositionbeingapositionwheretheyarnguiding
member i s l o c a t e d away from a yarn t o be wound around t h e
cross-wound package, and t h e guiding p o s i t i o n being a
p o s i t i o n where t h e yarn guidingmember g u i d e s t h e yarn from
25 t h e cross-wound package t o prevent t h e yarn from making
contact with t h e t r a v e r s e guide,
wherein t h e holding s e c t i o n i s adapted t o r e l e a s e
holding of t h e d r i v i n g r o l l e r when t h e second d r i v i n g
s e c t i o n moves t h e yarn guiding member from t h e standby
30 p o s i t i o n t o t h e guiding p o s i t i o n .
8. The s e r v i c e vehicle according t o claim7, f u r t h e r
comprising:
a l i n k mechanism adapted t o move t h e d r i v i n g r o l l e r ;
and
5 a contactedportionmounted on t h e linkmechanismand
adapted t o move with t h e movement of t h e d r i v i n g r o l l e r
along a movement t r a j e c t o r y ;
wherein t h e holding s e c t i o n is a stopper mounted on
t h e yarn guiding member and adapted t o move i n conjunction
10 with t h e movement of t h e yarn guiding member,
when t h e yarnguidingmemberislocatedatthe standby
p o s i t i o n , t h e stopper is positionedatapositionwherethe
stopper i n t e r f e r e s with t h e movement t r a j e c t o r y of the
contacted p o r t i o n ,
15 whenthe yarnguidingmemberis l o c a t e d a t t h e guiding
p o s i t i o n , t h e stopper is p o s i t i o n e d a t a p o s i t i o n where t h e
stopper does not i n t e r f e r e with t h e movement t r a j e c t o r y of
t h e contacted p o r t i o n , and
t h e d r i v i n g r o l l e r is adapted t o be held a t t h e held
20 p o s i t i o n by t h e stopper making contact with t h e contacted
p o r t i o n .
9. The s e r v i c e v e h i c l e according t o claim 7 or claim
8, f u r t h e r comprising a c o n t r o l s e c t i o n adapted t o c o n t r o l
25 movements oftheyarnguidingmemberandthedrivingroller,
wherein t h e c o n t r o l s e c t i o n i s adapted t o perform a
c o n t r o l t o s e q u e n t i a l l y execute a r e l e a s i n g s t e p , a r o l l e r
advancing s t e p , a package d r i v i n g s t e p , a r o l l e r receding
s t e p , and a.n a c t i v a t i o n s t e p , wherein t h e r e l e a s i n g s t e p
30 being a s t e p i n which t h e yarn guiding member is moved from
t h e standby p o s i t i o n t o t h e guiding p o s i t i o n , the r o l l e r
advancing step being a step in which the driving roller is
moved to the contacting position, the package driving step
being a step in which the cross-wound package is
rotationally driven by the driving roller, the roller
5 receding position being a step in which the driving roller
is moved from the contacting position to the receded
position, and the activation step being a step in which the
yarn guiding member is moved from the guiding position to
the standby position.
10
10. The servicevehicleaccordingtoanyoneof claim
1 through claim 9, further comprising a travelling wheel,
and a vehicle driving section adapted to drive the
travelling wheel.
15
11. A textile machine comprising:
the service vehicle according to any one of claim I
through claim 10; and
a plurality of yarn winding units, each of which is
20 adapted to wind a yarn to form a cross-wound package,
wherein the service vehicle is adaptedtobe assigned
with all or a portion of the plurality of the yarn winding
units as an assigned range, and is adapted to perform
service with respect to a serving unit, the servicing unit
25 being one of the yarn winding units belonging to the
assigned range, and
the driving roller is adapted to rotationally drive
the cross-wound package of the servicing unit i.n an
unwinding direction.
12. The textile machine according to claim 11,
wherein the service vehicle includes a yarn joining device
adapted to perform a yarn joining operation with respect
to the servicing unit, and
the first driving section is adapted to move the
5 driving roller to the contacting position prior to
performance of the yarn joining operation by the yarn
joining device.