[Document Name] Specification
[Title of the Invention] BOBBIN SETTING DEVICE AND YARN WINDING
MACHINE
[Field of the Invention]
5 [OOOl]
The present invention relates to a bobbin setting device and
a yarn winding machine.
[Related Art]
[0002]
10 Patent Document 1 (Japanese Patent Application Laid-open No.
2012-086923.) discloses a yarn winding machine including a doffing
device providedwith a supplyingmechanismadaptedto supply a bobbin
to a cradle capable of holding the bobbin, and a doffing mechanism
adapted to move a fully-wound package, which is formed by winding
I 15 a yarn around the bobbin, from a cradle to a discharge section. I
[Prior Art Document]
[Patent Document]
[0003]
[Patent Document 11 Japanese Patent Application Laid-open
20 No. 2012-086923
[Summary of the Invention]
[Problems to be Solved by the Invention]
[0004]
In the doffing device, when moving the package from the cradle
25 to the discharge section by the doffing mechanism, a state in which
the package is not discharged to the discharge section and remains
at the cradle occurs in some cases, for example, by a defect in which
the bobbin of the package is too fit into the cradle, or the like.
In this state, when the supplyingmechanismtriesto supply the bobbin
30 to the cradle, the supplying mechanism and the package make contact
with each other. Consequently, the package remaining at the cradle
may be damaged, or the supplying mechanism may be damaged.
[0005]
A n o b j e c t o f t h e p r e s e n t i n v e n t i o n i s t o p r o v i d e a b o b b i n s e t t i n g
35 device and a yarn winding machine that are capable of favorably
I P O DELE41 O Z - Q ' 2 - 2 0 1 ! 5 15 1 2 4
1 / 26
supplying t h e bobbin.
[Means f o r Solving t h e Problems and E f f e c t s Thereof]
[0006]
A bobbin s e t t i n g device according t o one aspect of t h e present
5 i n v e n t i o n i n c l u d e s a bobbin holding s e c t i o n adapted t o hold a bobbin
aroundwhicha yarn is t o b e woundandtoperforma s u p p l y i n g o p e r a t i o n
I t o supply t h e bobbin t o a t a r g e t p o s i t i o n , and a c o n t r o l s e c t i o n
adapted t o s t o p t h e supplying operation performed by the bobbin
holding s e c t i o n when an o b s t a c l e t h a t i n t e r f e r e s with t h e supplying
10 operation e x i s t s a t t h e t a r g e t p o s i t i o n .
[0007]
In t h e bobbin s e t t i n g device, f o r example, t h e c o n t r o l s e c t i o n
s t o p s t h e supplyingoperationperformedbythebobbin holding s e c t i o n
when a package t o b e t h e o b s t a c l e e x i s t s a t t h e t a r g e t p o s i t i o n , which
15 is t h e c r a d l e , f o r example, i n o t h e r words, when t h e c r a d l e cannot
receive t h e bobbin. Accordingly, i n t h e bobbin s e t t i n g device, when
I thebobbinholdingsectiontriestoperformtheoperationof supplying
t h e bobbin, t h e bobbin holding s e c t i o n and t h e o b s t a c l e ( t h e package)
can be prevented from making contact with each o t h e r . In t h e bobbin
20 s e t t i n g device, t h e r e f o r e , when supplying t h e bobbin t o t h e c r a d l e ,
t h e package and/or t h e bobbin holding s e c t i o n can be prevented from
beingdamaged. Consequently, thebobbin s e t t i n g d e v i c e can favorably
supply t h e bobbin.
[0008]
2 5 In one embodiment, t h e c o n t r o l s e c t i o n may c o n t r o l the bobbin
holding s e c t i o n t o supply t h e bobbin t o t h e t a r g e t p o s i t i o n when t h e
o b s t a c l e does n o t e x i s t a t t h e t a r g e t p o s i t i o n . I n t h i s manner, s i n c e
t h 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 bobbin holding s e c t i o n t o supply
t h e bobbin when t h e o b s t a c l e does not e x i s t a t t h e t a r g e t p o s i t i o n ,
30 i n o t h e r words, f o r example, when t h e c r a d l e is capable of receiving
t h e bobbin, t h e bobbin holding s e c t i o n can supply t h e bobbin t o the
t a r g e t p o s i t i o n without making contact with t h e o b s t a c l e . Thebobbin
s e t t i n g device t h u s - can favorably supply t h e bobbin.
[0009]
3 5 Inone embodiment, thebobbin s e t t i n g devicemay f u r t h e r include
HP8 DELHH a % - O h - h Q % 5 15:24
2 / 26
1
a d e t e c t i n g s e c t i o n adapted t o d e t e c t t h e o b s t a c l e . The c o n t r o l
s e c t i o n may determine a presence and/or an absence of the o b s t a c l e
a t t h e t a r g e t p o s i t i o n i n accordance with a r e s u l t detected by t h e
d e t e c t i n g s e c t i o n . Accordingly, t h e c o n t r o l s e c t i o n can a c c u r a t e l y
5 d e t e r m i n e t h e p r e s e n c e a n d / o r t h e a b s e n c e o f t h e o b s t a c l e a t t h e t a r g e t
p o s i t i o n a n d furtherappropriatelycontrolthebobbinholding s e c t i o n .
In the bobbin s e t t i n g device, t h e r e f o r e , t h e bobbin holding s e c t i o n
and the o b s t a c l e can be f u r t h e r prevented from making contact with
each o t h e r .
10 [OOlO]
In one embodiment, the c o n t r o l s e c t i o n may determine t h e
presence and/or t h e absence of t h e o b s t a c l e a t t h e t a r g e t p o s i t i o n
a f t e r a predetermined period of time elapses from an operation
performedto remove t h e package froma packageholding s e c t i o n a d a p t e d
15 t o hold the package, which is formed by winding the yarn around t h e
bobbin. For example, i f t h e determination o f t h e presence a n d / o r t h e
absence of the o b s t a c l e is made immediately a f t e r t h e operation is
performed t o remove t h e package from t h e package holding s e c t i o n ,
a wrong determination t h a t the package is t h e o b s t a c l e may be made
20 i n s p i t e of a f a c t t h a t t h e package has been removed from t h e package
holding s e c t i o n . The c o n t r o l s e c t i o n thus determines t h e presence
and/or t h e absence of t h e o b s t a c l e a f t e r t h e predetermined period
of time elapses from t h e operation performed t o remove t h e package
from t h e package holding s e c t i o n . Accordingly, t h e c o n t r o l s e c t i o n
25 can be prevented from making t h e wrong determination t h a t t h e package
immediately a f t e r having been removed is t h e o b s t a c l e .
[ 0 0 11 ]
Inoneembodiment, t h e b o b b i n s e t t i n g d e v i c e m a y f u r t h e r include
a supporting s e c t i o n adapted t o support a package which is formed
30 by winding t h e yarn around the bobbin, and a moving s e c t i o n adapted
tomove the supportingsectiontoastandbyposition, a f i r s t p o s i t i o n ,
whichisapositionwherethe supportingsectionreceivesthepackage,
a n d a s e c o n d p o s i t i o n , whichisapositionwherethe s u p p o r t i n g s e c t i o n
r e l e a s e s t h e package received a t t h e f i r s t p o s i t i o n . The c o n t r o l
35 s e c t i o n may determine t h e presence and/or t h e absence of t h e o b s t a c l e
HBO B E L H I O L - 8 2 - 2 Q 2 5 15:24
3 / 26
a t t h e t a r g e t p o s i t i o n a f t e r the moving s e c t i o n has moved the
supporting s e c t i o n f r o m t h e f i r s t p o s i t i o n t o the standby p o s i t i o n .
Accordingly, s i n c e the determination of t h e presence and/or the
absence of t h e o b s t a c l e is made a f t e r the supporting s e c t i o n has been
located a t t h e standby p o s i t i o n , t h e c o n t r o l s e c t i o n can be prevented
from making t h e wrong determination t h a t t h e package supported by
t h e supporting s e c t i o n is t h e o b s t a c l e .
[0012]
Inone embodiment, thebobbin s e t t i n g devicemay f u r t h e r include
a n o t i f y i n g s e c t i o n adapted t o n o t i f y an occurrence o f abnormality
when t h e o b s t a c l e e x i s t s a t t h e t a r g e t p o s i t i o n . Accordingly, the
bobbin s e t t i n g device cannotifyaworkerandthelikethata s i t u a t i o n
i n which t h e operation of supplying the bobbin cannot be performed
has occurred.
[0013]
A yarn winding machine according t o another aspec't of t h e
p r e s e n t i n v e n t i o n include s t h e above-describedbobbin s e t t i n g d e v i c e ,
a p l u r a l i t y of yarn winding u n i t s each a d a p t e d t o wind t h e yarn around
t h e bobbin t o form a package and i n c l u d i n g a package holding s e c t i o n
adapted t o hold the package. The t a r g e t p o s i t i o n is a p o s i t i o n where
t h e bobbin is held by t h e package holding s e c t i o n .
[0014]
The yarn winding machine includes the bobbin s e t t i n g device,
and t h e c o n t r o l s e c t i o n of t h e bobbin s e t t i n g device is adapted t o
stop supplying o p e r a t i o n p e r f o r m e d b y t h e bobbin holding s e c t i o n when
an o b s t a c l e t h a t i n t e r f e r e s with t h e supplying o p e r a t i o n e x i s t s a t
the t a r g e t p o s i t i o n . Accordingly, i n the bobbin s e t t i n g device, when
thebobbinholding sectiontriestoperformtheoperationof supplying
the bobbin, t h e bobbin holding s e c t i o n and t h e o b s t a c l e ( t h e package)
can be prevented from making contact with each o t h e r . I n t h e yarn
winding machine provided with t h e bobbin s e t t i n g device, t h e r e f o r e ,
when t h e bobbin is supplied t o t h e c r a d l e , t h e package and/or t h e
bobbin holding s e c t i o n can be prevented from being damaged.
Consequently, t h e yarn winding machine can favorably supply t h e
bobbin.
D E L H I 0 2 - O 2 - . 2 , O P 5 15 124
4 / 26
[0015]
The present invention enables supply of the bobbin to be
favorably performed.
[Brief Description of the Drawings]
5 [0016]
FIG. 1is a front view illustrating a spinningmachine according
to an embodiment;
FIG. 2 is a side view illustrating a spinning unit included in
the spinning machine of Fig. 1;
10 FIG. 3 is a block diagram illustrating a configuration of a
doffing device;
FIG. 4 is a side view illustrating a state in which a package
supporting section is located at a standby position;
FIG. 5 is a side view illustrating a state in which the package
15 supporting section is located at a first position; and
FIG. 6 is a side view illustrating a state in which the package
supporting section is located at a second position.
[Embodiments of the Invention]
[0017]
2 0 A preferred embodiment of the present invention will be
describedin detail with reference to the accompanying drawings. In
description of the drawings, the same reference numerals are denoted
for the same or corresponding elements, and redundant description
will be omitted. The dimensional ratios in the drawings do not
25 necessarilymatchwiththedescription. Inthe present specification,
"upstream" and "downstream" respectively indicate upstream and
downstream in a travelling direction of a spun yarn (yarn) 10 at the
time of spinning.
[0018]
30 As illustrated in Figs. 1 and 2, a spinning machine (a yarn
winding machine) 1 includes a plurality of spinning units 2, a yarn
joining vehicle 3, a doffing vehicle 4, a blower box 5A in which for
example, an air suction source adapted to generate suction flow in
each sectionofthe spinningunit2 and/or anair supply sourceadapted
35 to generate whirling flow in each section of the spinning unit 2 are
I P Q D E L H I QL --OL - L O 1 5 15 : 2 4
5 / 26
accommodated, t h e motor box 5B i n which, f o r example, a motor adapted
t o supply power t o e a c h s e c t i o n o f t h e s p i n n i n g u n i t 2 is accommodated,
and the machine c o n t r o l device 30 (see FIG. 3) adapted t o perform
v a r i o u s t y p e s of c o n t r o l processing i n t h e spinning machine 1.
5 [0019]
F i r s t , t h e spinning u n i t 2 w i l l be described. The p l u r a l i t y
of spinning u n i t s 2 a r e arranged i n a row. Each of t h e spinning u n i t s
2 i s adapted t o produce-the spun yarn 10 and t o wind t h e produced
spun yarn 10 around a package 45. Each spinning u n i t 2 i n c l u d e s as
10 main components, a d r a f t i n g device 7, a spinning device 9, a yarn
accumulating device 12, and a winding device 13 i n t h i s order from
upstream t o downstream. Each spinning u n i t 2 i n c l u d e s a u n i t
c o n t r o l l e r (not i l l u s t r a t e d ) adapted t o perform t h e various types
of c o n t r o l processing i n t h e spinning u n i t 2.
15 [0020]
The d r a f t i n g device 7 is provided i n proximity t o an upper end
of a frame 6 of t h e spinning machine 1. The spinning d e v i c e 9 is
adapted t o spin a f i b e r bundle 8 fed from t h e d r a f t i n g device 7. The
spun yarn 10 produced by t h e spinning device 9 is wound by t h e winding
20 d e v i c e 1 3 v i a a y a r n a c c u m u l a t i n g r o l l e r 2 1 . Accordingly, thepackage
45 is formed. In t h e following d e s c r i p t i o n , a bobbin 48 with yarn
l a y e r s wound therearound is r e f e r r e d t o a s t h e package 45.
[0021]
The d r a f t i n g device 7 is adapted t o produce t h e f i b e r bundle
25 8 b y s t r e t c h i n g a s l i v e r 1 5 . T h e d r a f t i n g d e v i c e 7 i n c l u d e s f o u r p a i r s
o f r o l l e r s , w h i c h a r e a p a i r o f b a c k r o l l e r s 1 6 , a p a i r o f t h i r d r o l l e r s
17, a p a i r of middle r o l l e r s 19with a n a p r o n b e l t 1 8 e q u i p p e d t h e r e t o ,
a n d a p a i r o f f r o n t r o l l e r s 20. Abottomrollerofeachpairofrollers
16, 1 7 , 19, and 20 is driven by power from the motor box 5B o r power
30 of an e l e c t r i c motor (not i l l u s t r a t e d ) arranged i n each spinning u n i t
2. Each p a i r of r o l l e r s 16, 17, 19, and 20 is r e s p e c t i v e l y driven
a t r o t a t i o n a l speeds t h a t a r e d i f f e r e n t from one another.
Consequently, t h e s l i v e r 15 supplied from upstream is s t r e t c h e d and
formed i n t o t h e f i b e r bundle 8, and t h e f i b e r bundle 8 is fed t o t h e
35 spinning d e v i c e 9 located downstream.
IPO BELHI 0 2 - 8 6 - B Q B 5 15184
6 / 26
[0022]
The spinning device 9 is adapted to twist the fiber bundle 8
by useof whirling flow toproduce the spun yarn 10. Althoughdetailed
description and drawings are omitted, the spinning device 9 includes
, 5 a fiber guiding section, a whirling flow generating nozzle, and a
hollowguide shaftbody. The fiberguidingsectionisadaptedtoguide
the fiber bundle 8 fed fromthe draftingdevice 7 to a spinning chamber
formed inside the spinning device 9. The whirling flow generating
nozzle is arranged around a path of the fiber bundle 8 and is adapted
10 togeneratethewhirlingflowinthespinningchamber. Bythewhirling
flow, a fiber end of the fiber bundle 8 inside the spinning chamber
is inverted and whirled. The hollow guide shaft body is adapted to
guide the spun yarn 10 from the spinning chamber to outside the
spinning device 9. The spinning device 9 is controlled to be
15 driven/stopped by the unit controller.
[0023]
The yarn accumulating device 12 is adapted to temporarily
accumulate the spun yarn 10 fed from the spinning device 9. The yarn
accumulating device 12 mainly includes the yarn accumulating roller
20 21, a yarn engaging member 22, an upstream guide 23, and an electric
motor 25.
[0024]
The yarn accumulating roller 21 is adapted to accumulate the
spun yarn 10 by winding the spun yarn 10 around an outer peripheral
25 surface thereof. The yarn accumulating roller 21 is rotationally
driven at a constant rotational speed by the electric motor 25
controlled by the unit controller. The yarn engaging member 22 is
supported in a relatively rotatable manner with respect to the yarn
accumulating roller 21. Furthermore, the yarn engaging member 22 is
30 configured such that torque (resistance torque) against the relative
rotation of the yarn engaging member 22 with respect to the yarn
accumulating roller 21 is generated by a torque generating means
formed of a magnetic means and the like, for example.
[0025]
35 Inacasewherethe s p u n y a r n l o i s e n g a g e d w i t h t h e y a r n e n g a g i n g
I P O DELHH 0 2 - 0 2 - 2 0 1 5 1 5 1 2 4
7 / 26
member 22 in the yarn accumulating device 12, when tension applied
to the spun yarn 10 is greater than the resistance torque, the yarn
engaging member 22 rotates independently fromthe yarn accumulating
roller 21 and unwinds the spun yarn 10 from the yarn accumulating
5 roller 21. Conversely, when the tension applied to the spun yarn 10
is smaller than the resistance torque, the yarn engaging member 22
rotates integrally with the yarn accumulating roller 21 and winds
the spun yarn 10 around the yarn accumulating roller 21. By such
operations of the yarn accumulating device 12, the spun yarn 10 can
10 be continuously drawn from the spinning device 9 while eliminating
a slackening of the spun yarn 10 and applying appropriate tension.
[0026]
The upstreamguide 23 is arranged slightlyupstreamofthe yarn
accumulating roller 21. The upstream guide 23 is adapted to
15 appropriately guide the spun yarn 10 to the outer peripheral surface
of the yarn accumulating roller 21. Furthermore, the upstream guide
23 preventstwists ofthe spun yarn 10that propagate fromthe spinning
device 9 from propagating to downstream of the upstream guide 23.
[0027]
A yarn clearer 49 is provided on a front side of the frame 6
of the spinning machine 1 and between the spinning device 9 and the
yarnaccumulatingdevice12. The yarnclearer 49is adaptedtomonitor
a thickness of the travelling spun yarn 10, and/or a presence and/or
anabsenceofa f o r e i g n s u b s t a n c e i n t h e s p u n y a r n 1 0 . The yarnclearer
25 49 transmits a yarn defect detection signal to the unit controller
when detecting a yarn defect of the spun yarn 10.
[0028]
Upon receipt of the yarn defect detection signal, the unit
controller immediately stops injection of compressed air from the
30 whirling flow generating nozzle of the spinning device 9.
Accordingly, the whirling flow is stopped and thereby twisting of
the fiber bundle 8 is stopped, and feeding of the fiber bundle 8 to
the spinning device 9 is also stopped. Then, a continuous state of
fibers is disconnected in the spinning device 9, and the spun yarn
35 10 is disconnected. Subsequently, the unit controller further stops
I P O E E L H I O L - 0 2 - 2 0 1 5 B 5 : 2 4
8 / 26
t h e d r a f t i n g device 7 and t h e l i k e .
[0029]
The u n i t c o n t r o l l e r t r a n s m i t s t h e yarn d e f e c t d e t e c t i o n s i g n a l
t o t h e machine c o n t r o l device 30. The machine c o n t r o l device 30 t h a t
5 has r e c e i v e d t h e yarn d e f e c t d e t e c t i o n s i g n a l t r a n s m i t s a c o n t r o l
s i g n a l t o t h e yarn j o i n i n g v e h i c l e 3, which is t o be d e s c r i b e d l a t e r ,
t o cause t h e yarn j o i n i n g v e h i c l e 3 t o t r a v e l t o a f r o n t o f t h e r e l e v a n t
s p i n n i n g u n i t 2. Then, t h e u n i t c o n t r o l l e r a c t i v a t e s t h e spinning
d e v i c e 9 and t h e l i k e again, causes t h e yarn j o i n i n g v e h i c l e 3 t o
10 p e r f o r m a yarn j o i n i n g o p e r a t i o n , a n d r e s t a r t s w i n d i n g b y t h e spinning
u n i t 2 . A t t h i s t i m e , d u r i n g a p e r i o d o f t i m e a f t e r t h e s p i n n i n g d e v i c e
9 has r e s t a r t e d spinning u n t i l t h e winding is r e s t a r t e d , t h e yarn
accumulating device 12 e l i m i n a t e s a s l a c k e n i n g of t h e spun yarn 10
I by accumulating t h e spun yarn 10, which is c o n t i n u o u s l y fed from t h e
15 s p i n n i n g d e v i c e 9, around t h e yarn accumulating r o l l e r 21.
[0030]
T h e w i n d i n g d e v i c e 1 3 i s a d a p t e d t o w i n d t h e s p u n y a r n 1 0 s u p p l i e d
from t h e yarn accumulating device 12 around t h e bobbin 48 t o form
t h e package 45. As i l l u s t r a t e d i n Fig. 2, t h e winding d e v i c e 1 3
20 i n c l u d e s a c r a d l e (a package holding s e c t i o n ) 70, a winding drum 74,
and a t r a v e r s e guide 76.
[ 0 0 3 1 ]
The c r a d l e 70 i n c l u d e s a c r a d l e arm 7 1 swingable w i t h a s u p p o r t
s h a f t 73 a s a c e n t e r and bobbin h o l d e r s 72 adapted t o r o t a t a b l y hold
25 both end p o r t i o n s of t h e bobbin 48. The winding drum 74 i s adapted
t o r o t a t e while making c o n t a c t w i t h an o u t e r p e r i p h e r a l s u r f a c e of
t h e bobbin 48 o r an o u t e r p e r i p h e r a l s u r f a c e of t h e package 45. The
t r a v e r s e guide 76 is arranged t o b e c a p a b l e of engaging with t h e spun
yarn 10 s u p p l i e d from t h e yarn accumulating device 12.
[0032]
The winding device 1 3 d r i v e s t h e winding drum 74 by an electric
motor ( n o t i l l u s t r a t e d ) while r e c i p r o c a t i n g t h e t r a v e r s e guide 76
b y a d r i v e means (not i l l u s t r a t e d ) . Accordingly, t h e bobbin 48 o r
t h e package 45 being i n c o n t a c t with t h e winding drum 74 is r o t a t e d ,
35 and t h e spun yarn 10 is wound around t h e bobbin 48 o r t h e package
I P O D E L H I Q 2 - 8 2 - 2 8 1 5 95: 2 4
9 / 26
45 while reciprocating the spun yarn 10.
[ 0 0 3 3 ]
A spring (not illustrated) is mounted to the cradle arm 71. The
spring is adapted to constantly apply an urging force in a standing
5 direction to the cradle arm 71. Therefore, as a wound diameter of
the package 45 becomes greater, the cradle arm 71 falls towards a
front side of the winding device 13 and thereby a position of an axis
of the package 45 moves forward. A drive section (a cylinder, for
example), which is not illustrated, is coupled to the cradle arm 71.
10 By an instruction of the unit controller, the cradle arm 71 can be
controlledtoactivelyswinginadirectiontobeaway fromthewinding
drum 74 or in a direction to be close to the winding drum 74. With
such a configuration, when the package 45 is fully-wound, the cradle
arm 71 is swung in the direction to be away from the winding drum
15 74 to prevent a driving force from being transmitted to the package
45. Even after the package 45 has been moved away from the winding
drum 74, the package 45 continues rotation by inertia (hereinafter
referred to as inertial rotation).
LOO341
Next, the yarn joining vehicle 3 will be described. The yarn
joining vehicle 3 is adapted to perform yarn joining operation in
a spinning unit 2 where the spun yarn 10 has been disconnected. The
yarn joining vehicle 3 includes a housing 3A provided with travelling
wheels 42. A splicer 43, a suction pipe 44, and a suction mouth 46
25 are mounted to the housing 3A. After a yarn breakage or a yarn cut
has occurred in a certain spinning unit 2, by the control signal from
the machine control device 30, the yarn joining vehicle 3 travels
on a rail 41 fixed to the frame 6 to such a spinning unit 2 and stops
to perform the yarn joining operation.
[0034]
The suction pipe 44 is vertically swingable with an axis as a
center. The suction pipe 44 sucks and catches a yarn end (an upper
yarn) fed from the spinning device 9, and guides the caught yarn end
to the splicer 43. The suction mouth 46 is vertically swingable with
35 an axis as a center. The suction mouth 46 sucks and catches a yarn
I P O DELHI 8 2 - 0 2 - 2 0 2 5 15124
10 / 26
end (a lower yarn) from t h e package 45 supported by t h e winding device
13, and guides t h e caught yarn end t o t h e s p l i c e r 43. Although a
d e t a i l e d d e s c r i p t i o n on the s p l i c e r 43 is omitted, the upper yarn
and t h e lower yarn can b,e joined by t w i s t i n g t h e yarn ends t o g e t h e r
5 using whirling flow.
[ 0 0 3 6 ]
Next, t h e d o f f i n g v e h i c l e 4 w i l l be described. The doffing
vehicle 4 is a device adapted t o perform a bobbin s e t t i n g operation
of supplying the bobbin 48 t o t h e c r a d l e 70 and preparing f o r winding
10 of t h e spun yarn 10, and a doffing operation of removing a fully-wound
package 45 from t h e c r a d l e 70. The doffing v e h i c l e 4 includes a
housing 4A provided with t r a v e l l i n g wheels 92. A doffing device (a
bobbin s e t t i n g device) 60 and a package r e c e i v i n g s e c t i o n 84 a r e
provided t o the housing 4A. When t h e package 45 i s f u l l y wound i n
15 a c e r t a i n s p i n n i n g u n i t 2 , bya c o n t r o l s i g n a l fromthemachine c o n t r o l
device 30, t h e d o f f i n g v e h i c l e 4 t r a v e l s o n a t r a v e l l i n g p a t h 91formed
on t h e frame 6 t o such a spinning u n i t 2 and s t o p s t o perform t h e
doffing operation, o r both of t h e doffing operation and t h e bobbin
s e t t i n g operation.
20 [0037]
The doffing device 60 includes a bobbin supplying mechanism 50,
a suction pipe 88, and a c r a d l e operating arm 89 as a configuration
t o perform t h e bobbin s e t t i n g operation t o s e t t h e bobbin 48 t o t h e
c r a d l e 70 (a s u p p l y i n g o p e r a t i o n t o s u p p l y t h e b o b b i n 4 8 t o t h e c r a d l e
25 7 0 ) .
[0038]
As i l l u s t r a t e d i n Fig. 2, the bobbin supplying mechanism 50 i s
a r r a n g e d t o b e swingable w i t h a swing s h a f t 5 4 as a c e n t e r . Thebobbin
supplying mechanism 50 is swung with t h e swing s h a f t 54 as a c e n t e r
30 by a driving f o r c e of a motor 51. In t h e bobbin supplying mechanism
50, a bobbin holding s e c t i o n 52 adapted t o hold t h e bobbin 48 i s
provided a t an end p o r t i o n opposite t o t h e swing s h a f t 54. The bobbin
supplying mechanism 50 is adapted t o receive t h e bobbin 48 from a
bobbinaccommodating s e c t i o n and t o supply thebobbin 48 t o t h e b o b b i n
35 holders 72 of t h e c r a d l e 70, which is a t a r g e t p o s i t i o n , by swinging
HPO DELHP 02-02-2015 L5:24
11 / 26
while holding t h e bobbin 48. The bobbin supplying mechanism 50
includes a bunch-winding r o l l e r 53 a d a p t e d t o performbunch winding.
The "bunch winding" is t o form a s t r a i g h t winding of the spun yarn
10 around the bobbin 48 t o f i x t h e spun yarn 10 t o the bobbin 48.
5 [ 0 0 3 9 1
The suction pipe 88 is arranged t o be capable of swinging with
a s w i n g s h a f t ( n o t i l l u s t r a t e d ) a s a c e n t e r a n d e x t e n d i n g / c o n t r a c t i n g .
In the suction pipe 88, a suction s e c t i o n (not i l l u s t r a t e d ) is formed
a t an end portion opposite t o t h e swing s h a f t . The suction pipe 88
10 i s adapted t o catch t h e spun yarn 10 discharged from t h e spinning
device 9 by sucking t h e spun yarn 10 with t h e suction s e c t i o n and
t o guide the caught spun yarn 10 t o t h e winding device 13.
[0040]
The c r a d l e o p e r a t i n g arm 89 is arranged t o be swingable with
15 a swing s h a f t (not i l l u s t r a t e d ) a s a c e n t e r . As i l l u s t r a t e d i n Fig.
5, an operating s e c t i o n 89A is provided a t an end portion opposite
t o t h e swing s h a f t i n t h e c r a d l e o p e r a t i n g arm 89. The operating
s e c t i o n 89A is capable o f moving one of t h e bobbin holders 72 away
from the other of t h e bobbin holders 72. In other words, t h e c r a d l e
20 operating arm 89 performs an o p e r a t i o n of opening the c r a d l e arm 71
toremove the fully-woundpackage 45 f r o m t h e c r a d l e 70 or a n o p e r a t i o n
of closing t h e c r a d l e arm 71 t o set a new bobbin 48 t o t h e c r a d l e
25 As i l l u s t r a t e d i n Fig. 2, t h e doffing device 60 includes a
doffingmechanism61as a configuration t o p e r f o r m a d o f f i n g operation
of removing t h e fully-wound package 45 from t h e c r a d l e 70 and guiding
t h e removed package 45 t o a package r e c e i v i n g s e c t i o n 84.
[0042]
30 A t t h i s p o i n t , t h e package r e c e i v i n g s e c t i o n 84 w i l l be
described. The package receiving s e c t i o n 84 includes an i n c l i n e d
portion 81 f o r r o l l i n g and moving t h e package 45 and a placing s e c t i o n
82 on which the r o l l e d package 4 5 i s temporarily placed. The placing
s e c t i o n 82 is continuously arranged a t an end portion of t h e i n c l i n e d
35 portion 81. The i n c l i n e d portion 81 and t h e placing s e c t i o n 82 a r e
W P OELB-WI 0 % - 8 2 - 2 8 1 5 1 5 1 2 4
12 / 26
both adapted t o make contact with a p e r i p h e r a l s u r f a c e of the package
45. The i n c l i n e d p o r t i o n 81 and the placing s e c t i o n 82 a r e arranged
a t a p o s i t i o n lower than the bobbin holders 72.
5 In t h e present embodiment, the placing s e c t i o n 82 is configured
as a conveyor and t r a n s p o r t s t h e package 45 i n a d i r e c t i o n i n which
t h e 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 are arranged. That is, t h e conveyor
successively t r a n s p o r t s the package 45 discharged t o t h e placing
s e c t i o n 82 by the doffing device 60. Transportation of t h e conveyor
10 is c o n t r o l l e d by a c o n t r o l s i g n a l from t h e machine c o n t r o l device
30.
[0044]
The doffingmechanism 61includes a swing arm (amoving s e c t i o n )
62, amotor 63, andapackage s u p p o r t i n g s e c t i o n ( a s u p p o r t i n g s e c t i o n )
15 65 a s main components. In t h e doffing mechanism 61, t h e package
supporting s e c t i o n 65 t h a t supports t h e package 45 is arranged t o
be capable o f moving t o a f i r s t p o s i t i o n P1 (see Fig. 5) where t h e
package supporting s e c t i o n 65 receives t h e package 45, a second
p o s i t i o n P2 (see Fig. 6) where the package supporting s e c t i o n 65
20 r e l e a s e s t h e package 45 received a t t h e f i r s t p o s i t i o n P I , and a
i standby p o s i t i o n PO (see Fig. 4 ) by t h e swing arm 62.
[0045]
The swing arm 62 is swung, f o r example, i n a counterclockwise
d i r e c t i o n i n Fig. 5 by a d r i v i n g f o r c e of t h e motor 63. Accordingly,
25 thedoffingmechanism61is causedtoadvance f r o m t h e d o f f i n g v e h i c l e
4 t o t h e winding device 13, and t h e r e b y a t i p - e n d s i d e ( t h e package
supporting s e c t i o n 65) of t h e doffing mechanism 61 is moved c l o s e
t o t h e package 45 (see Fig. 5 ) . I n o t h e r words, by swinging i n t h e
counterclockwise d i r e c t i o n , t h e swing arm 62 moves t h e package
30 supporting s e c t i o n 65 from t h e standby p o s i t i o n PO t o the f i r s t
p o s i t i o n P I .
[0046]
The swing arm 62 i s swung, f o r example, i n a clockwise d i r e c t i o n
i n Fig. 4 by t h e d r i v i n g f o r c e of t h e motor 63. Accordingly, t h e
35 doffing mechanism 61 is moved t o t h e doffing v e h i c l e 4 , and thereby
I P O DELHH O L - 0 2 - 2 0 1 5 15124
13 / 26
t h e tip-end s i d e ( t h e package supporting s e c t i o n 65) of the doffing
mechanism 61 is moved away from the package 45 placed on t h e placing
s e c t i o n 82 of t h e package receiving s e c t i o n 84. In o t h e r words, by
5 s u p p o r t i n g s e c t i o n 6 5 f r o m t h e f i r s t p o s i t i o n P 1 t o t h e s e c o n d p o s i t i o n
P2, and from the second p o s i t i o n P2 t o t h e standby p o s i t i o n PO (see
Fig. 4 ) . The standby p o s i t i o n PO is a p o s i t i o n where t h e package
supporting s e c t i o n 65 does not make contactwiththedeliveredpackage
45 a t t h e second p o s i t i o n P2.
10 [0047]
By being swung i n an upper d i r e c t i o n , t h e package supporting
s e c t i o n 65 can make contact with t h e package 45 held by t h e bobbin
holders 72. Accordingly, t h e package supporting s e c t i o n 65 can stop
t h e i n e r t i a l r o t a t i o n of t h e package 45. The package supporting
15 s e c t i o n 65 a l s o guides t h e package 45 t o t h e i n c l i n e d portion 81 while
supporting weight of t h e package 45 received from t h e c r a d l e 70.
Furthermore, the package supporting s e c t i o n 65 continues t o support
t h e package 45 even a f t e r t h e package 45 has made contact with t h e
i n c l i n e d portion 81, and guides t h e package 45 t o t h e placing s e c t i o n
20 82 along the i n c l i n e d portion 81.
[0048]
A s i l l u s t r a t e d i n Fig. 3, t h e doffing device 60 i n c l u d e s a
d e t e c t i n g s e c t i o n 95, a doffing device c o n t r o l s e c t i o n 31, and a
n o t i f y i n g s e c t i o n 96 as a c o n f i g u r a t i o n t o r e g u l a t e t h e bobbin s e t t i n g
25 operation t o s e t t h e bobbin 48 t o t h e c r a d l e 70.
I I The d e t e c t i n g s e c t i o n 95 is a p o r t i o n wherean o b s t a c l e is
d e t e c t e d and is f i x e d t o t h e housing 4A. The d e t e c t i n g s e c t i o n 95
d e t e c t s a s the o b s t a c l e , t h e package 45 located a t t h e c r a d l e 70,
30 f o r example. The d e t e c t i n g s e c t i o n 95 is, f o r example, an o p t i c a l
sensor a n d i s capable o f d e t e c t i n g t h e p a c k a g e 4 5 l o c a t e d a t t h e c r a d l e
70 by d e t e c t i n g l i g h t r e f l e c t e d from t h e package 45 located a t t h e
c r a d l e 70 o r by d e t e c t i n g l i g h t blocked by the package 45 located
a t t h e cradle 70. The d e t e c t i n g s e c t i o n 95 outputs d e t e c t i o n
35 information i n d i c a t i n g a d e t e c t i o n r e s u l t t o the doffing device
XPQ DELHP 0 2 - 0 2 - h Q 5 5 3,5124
14 / 26
.
control section 31. The obstacle to be detected by the detecting
section 95 is not limited to the package 45. The detecting section
95 is capable of detecting an object located at or around the cradle
70 that is the target position where the bobbin 48 is supplied.
5 [0050]
The doffing device control section 31 performs various types
of control processing in the doffing device 60 such as movement of
the package supporting section 65 in the doffing mechanism 61,
movement of the bobbin holding section 52 in the bobbin supplying
10 mechanism 50, and the like. The machine control device 30 is formed
of a Central Processing Unit (CPU) , a Read Only Memory (ROM) , a Random
Access Memory (RAM), a harddisc, andthe like. The control performed
by the doffing device control section 31 is realized, for example,
by loading a program stored in the ROM onto the RAM and implementing
15 the program in the CPU.
[0051]
The doffing device control section 31 determines a presence
and/or an absence of the package 45 at the cradle 70 in accordance
with a result detected by the detecting section 95. Upon receipt of
20 the detection information output from the detecting section 95, the
doffing device control section 31determines the presence and/orthe
I absence of the package 45 at the cradle 70 based on the detection
information. Specifically, the doffing device control section 31
determines the presence and/or the absence of the package 45 at the
i 25 cradle 70 after the package supporting section 65 of the doffing
mechanism 61 has been moved to the standby position PO by the swing
arm 62. "After the package supporting section 65 has been moved to
the standby position PO by the swing arm 62" includes a time when
the package supporting section 65 is located at the standby position
30 PO. In other words, the doffing device control section 31 may
determine the presence and/or the absence of the package 45 at the
sametimeaswhenthepackage supportingsection 65 reachesthe standby
position PO. Alternatively, based on the control signal for
controlling the motor 63 that moves the package supporting section
35 65 or a detection signal of anorigin sensor (notillustrated) adapted
%PO BELHI 8 2 - 8 2 - P O 1 5 15124
15 / 26
to detect that the package supporting section 65 is located at the
standby position PO, information that the package supporting section
65 has reached the standby position PO can be obtained.
[0052]
When a determination is made that the package 45 exists at the
cradle 70, the doffing device control section 31 controls the bobbin
supplyingmechanism 50to stops the supplying operation ofthe bobbin
48 to the cradle 70 performed by the bobbin holding section 52 of
the bobbin supplying mechanism 50. In other words, when the package
10 45 exists at the cradle 70 and the cradle 70 cannot receive the bobbin
48, the doffing device control section 31 controls the bobbin
supplying mechanism 50 to stops the supplying operation (the bobbin
setting operation) of the bobbin 48 to the cradle 70 performed by
the bobbin supplying mechanism 50. When the determination is made
15 that the package 45 exists at the cradle 70, thedoffingdevice control
section 31 outputs abnormality information to the notifying section
96.
[0053]
When a determination is made that the package 45 does not exist
20 at the cradle 70, the doffing device control section 31 controls the
bobbin holding section 52 of the bobbin supplying mechanism 50 to
s u p p l y t h e b o b b i n 4 8 t o t h e c r a d l e 70. Inotherwords, whenthepackage
45 does not exist at the cradle 70 and the cradle 70 can receive the
bobbin 48, the doffing device control section 31 supplies the bobbin
25 48 to the cradle 70 by the bobbin holding section 52 of the bobbin
supplying mechanism 50.
[0054]
Whenthe obstacle exists at the cradle 70, thenotifying section
96 notifies an occurrence of abnormality. That is, upon receipt of
30 the abnormality information output from the doffing device control
section 31, the notifying section 96 notifies the occurrence of the
abnormality. The notifying section 96 is a lamp, for example. The
notifying section 96 may be a segment display adapted to display a
predetermined error code, a buzzer, or the like.
35 [0055]
IPO DELHI 82-02-2a15 15124
16 / 26
Next, the doffing operation and the bobbin setting operation
in the doffing device 60 will be described with reference to Figs.
4 to 6.
[0056]
When a sensor (not illustrated) detects that the package 45 of
a certain spinning unit 2 has been fully-wound, the unit controller
stops operations of the spinning device 9 and the conveyor, and the
machine control device 30 moves the doffing vehicle 4 to such a
spinning unit 2. Almost simultaneously with this, the unit
10 controller swings the cradle arm 71 to a left side in Fig. 2 (the
front side of the winding device 13). Accordingly, the fully-wound
package 45 ismovedaway fromthewindingdrum74, and thus the driving
force is not transmitted to the package 45. Even after the package
45 has moved away from the winding drum 74, the package 45 is rotated
15 by inertia.
[0057]
After the doffing vehicle 4 has arrived at a certain spinning
unit 2, as illustrated in Fig. 5, the doffing device 60 moves the
package supporting section 65 close to the package 45 by swinging
20 the swing arm 62 in the counterclockwise direction. That is, the
doffing device 60 moves the package supporting section 65 from the
standby position PO (a position of the package supporting section
65 illustrated in FIG. 4) to the first position P1 (a position of
the package supporting section 65 illustrated in FIG. 5).
2 5 [0058]
Next, as illustrated in Fig. 6, the doffing device 60 swings
the package supporting section 65 in the upper direction (in the
counterclockwise direction) at the first position P1 to be made into
contact with a peripheral surface of the package 45 (the package
30 supporting section 65 indicated by a two-dot chain line in Fig. 6).
Accordingly, the peripheral surface of the package 45 held by the
cradle 70 is braked by friction with the package supporting section
65, and the inertial rotation is stopped.
[0059]
3 5 The doffing device 60 moves the cradle operating arm 89 to a
I P O DELHX 0 2 - Q 2 - 2 8 1 % 15124
17 / 26
position illustrated in Fig. 5 before the inertial rotation of the
package 45 is completely stopped. After the rotation of the package
45 has been completely stopped, the doffing device 60 removes the
fully-wound package 45 from the cradle 70 by operating the cradle
arm 71 with the cradle operating arm 89 such that one of the bobbin
holders 72 is moved away from the other of the bobbin holders 72.
[0060]
The doffing device 60 swings the package supporting section 65
in a lower direction (in the clockwise direction) while supporting
a weight of the fully-wound package 45 that has been removed. Next,
as illustrated in Fig. 6, the doffing device 60 swings the swing arm
62 in the clockwise direction. In other words, the doffing device
60 moves the package supporting section 65 in the doffing mechanism
61 to the second position P2 (a position where the placing section
82 of the package receiving section 84 is arranged). Accordingly,
the package 45 is guided to the placing section 82 in a rolling manner
along the inclined portion 81 while being supported by the package
supporting section 65.
[0061]
After the package 45 has been guided to the placing section 82,
the doffing device 60 further swings the swing arm 62 in the clockwise
direction to move the package supporting section 65 to the standby
position PO (a position of the doffing mechanism 61 illustrated in
FIG. 4). After confirming that the package supporting section 65 has
25 returned to the standby position PO, the machine control device 30
restarts antransportation ofthe conveyor that has beeninterrupted.
That is, the package 45 transported to the placing section 82 is
transported by the conveyor.
[0062]
30 After confirming that the package supporting section 65 has
returned to the standby position PO, the doffing device control
section 31 determines the presence and/or the absence of the package
45 at the cradle 70 in accordance with the detection result of the
detecting section 95. When thedetermination ismade that thepackage
35 45 does not exist at the cradle 70, the doffing device control section
I P O D E L H I 8 2 - Q L - 2 t 3 B 5 1 5 - 2 4
18 / 26
31 controls the bobbin holding section 52 of the bobbin supplying
mechanism 50 to supply the bobbin 48 to the cradle 70 and controls
the bobbin supplying mechanism 50 to perform the bobbin setting
operation.
5 [0063]
When the determination is made that the package 45 exists at
the cradle 70, the doffing device control section 31 controls the
b o b b i n h o l d i n g s e c t i o n 5 2 t o stopthe supplyingoperationofthebobbin
48 to the cradle 70. Simultaneously with this, the notifying section
10 96 notifies that the occurrence of abnormality.
[0064]
As described above, the doffing device 60 of the spinning
machine 1 according to the present embodiment includes the doffing
device control section 31 that stops the operation of supplying the
15 bobbin 48 performed by the bobbin holding section 52 when an obstacle
exists at the cradle 70 to which the bobbin 48 is to be supplied.
When the obstacle, for example, the package 45 exists at the cradle
70, in other words, when the cradle 70 cannot receive the bobbin 48,
the doffing device control section 31 stops the supplying operation
20 performed by the bobbin holding section 52. When the obstacle does
not exist at the cradle 70, in other words, when the cradle 70 can
receive the bobbin 48, the doffing device 60 supplies the bobbin 48
to the cradle 70 by the bobbin holding section 52. Accordingly, in
the doffing device 60, when the bobbin holding section 52 tries to
25 perform the operation of supplying the bobbin 48, the bobbin holding
section 52 and the package 45 can be prevented from making contact
with each other. In the doffing device 60, the package 45 and/or the
bobbin holding section 52 thus can be prevented from being damaged.
Consequently, the doffing device 60 can favorably supply the bobbin
30 48.
[0065]
The doffing device 60 of the present embodiment includes the
detecting section 95 that detects an obstacle. The doffing device
control section 31 determines the presence and/or the absence of the
35 obstacle at the cradle 70 in accordance with the result detected by
I P O D E L H I 0 % - 0 2 - L Q 1 5 1%:24
19 / 26
*.
t h e d e t e c t i n g s e c t i o n 95. Accordingly, the doffing device c o n t r o l
s e c t i o n 31 can a c c u r a t e l y determine t h e presence and/or t h e absence
of t h e o b s t a c l e a t t h e c r a d l e 70 and more a p p r o p r i a t e l y c o n t r o l the
bobbin holding s e c t i o n 52. In the doffing device 60, t h e r e f o r e , the
5 bobbin holding s e c t i o n 52 and t h e package 45 can be f u r t h e r prevented
from making contact with each o t h e r .
[0066]
The doffing device c o n t r o l s e c t i o n 3 1 o f t h e present embodiment
determines the presence and/or t h e absence of t h e o b s t a c l e a t the
10 c r a d l e 70 a f t e r t h e package supporting s e c t i o n 65 has been moved from
t h e f i r s t p o s i t i o n P1 t o t h e standby p o s i t i o n PO by t h e swing arm
62. Awrongdeterminationthatthepackage 45 supportedbythepackage
supporting s e c t i o n 6 5 i s t h e o b s t a c l e canbe thus prevented frombeing
made. In t h e doffing device 60, t h e r e f o r e , s i n c e an operation stop
15 by t h e wrong determination of t h e doffing device c o n t r o l s e c t i o n 31
i s p r e v e n t e d , reductioninoperationefficiencycanbealsoprevented.
[0067]
The doffing device 60 of t h e present embodiment includes t h e
n o t i f y i n g s e c t i o n 9 6 t h a t n o t i f i e s t h e occurrence o f abnormalitywhen
20 t h e o b s t a c l e e x i s t s a t the c r a d l e 70. Accordingly, t h e d o f f i n g d e v i c e
60 can n o t i f y a worker t h a t an abnormal s i t u a t i o n i n which the
o p e r a t i o n o f supplyingthebobbin 48 cannotbeperformedhas occurred.
Consequently, s i n c e a r e c o v e r y o p e r a t i o n b y t h e worker canbe promptly
performed, reduction i n t h e operation e f f i c i e n c y can be prevented.
2 5 [0068]
Although an embodiment of t h e present invention has been
embodiment, and v a r i o u s m o d i f i c a t i o n s may be made as long as these
do n o t d e p a r t from t h e essence of t h e present invention.
30 [0069]
In t h e above-described embodiment, t h e doffing device c o n t r o l
s e c t i o n 31 determines t h e presence and/or t h e absence of t h e package
45 a t t h e cradle 70 a f t e r t h e package supporting s e c t i o n 65 has been
moved t o t h e standby p o s i t i o n PO by t h e swing arm 62. However, t h e
35 timing t o determine t h e presence and/or t h e absence of t h e package
%PO D E L H I 0 % - Q B - 2 0 1 5 B5:24
20 / 26
4 5 by the doffing device control section 31 may be another timing.
For example, the doffing device control section 31 may determine the
presence and/or the absence of the package 4 5 after a predetermined
period of time elapses from an operation performed to remove the
5 package 4 5 from the cradle 70 (the operation of moving one of the
bobbin holders 72 away from the other of the bobbin holders 72 by
the cradle operating arm 89). The predetermined period of time can
I 1
be appropriately set. If the determination of the presence and/or I 1
I 1
the absence of the obstacle is made immediately after the operation I
I
I 10 of removingthe package 45hasbeenperformed,thewrongdetermination
that the package 4 5 is the obstacle may be made in spite of a state
in which the package 4 5 has been removed from the cradle 70. The
doffing device control device 31thus determines the presence and/or
the absence of the obstacle after the predetermined period of time
15 elapses from the operation performed to remove the package 4 5 from
the cradle 70. Accordingly, the doffing device control section 31
can be prevented frommakingthe wrong determination that the package
45immediatelyafterhavingbeen removedisthe obstacle. Therefore,
since an operation stop caused by the wrong determination by the
20 doffing device control section 31 is prevented in the doffing device
60, reduction in operation efficiency can be prevented.
[0070]
In the above-described embodiment, an example in which the
placing section 82 is configured as a conveyor is described, but the
25 present invention is not limited thereto. For example, the placing
section 82 may be configured as a planar portion on which the package
4 5 can be placed, without being configured as a transportation
mechanism such as a conveyor. In this case, the package 4 5 on the
placing section 82 is manually collected by the worker.
30 [0071]
In the above-described embodiment, an example in which the
placing section 82 is arranged inside the travelling path 91 of the
doffing vehicle 4 (a right side in Fig. 2 and a side where the winding
device 13 is provided) is described. However, the present invention
35 is not limited thereto. For example, the placing section 82 may be
I P B D E L H I 0 2 - 8 2 - L Q l 5 %5:24
21 / 26
t
arranged outside the travelling path 91 of the doffing vehicle 4 (the
left side in Fig. 2).
In the above-describedembodiment, a configuration inwhich the
5 detecting section 95is arrangedinthe doffingdevice 60 is described
as an example, but the detecting section 95 may be arranged in the
spinning unit 2. In a case where the detecting section 95 is arranged
I in the doffing device 60, since merely one detecting section 95 is
I required to be arranged, a configuration can be simplified.
i 10 [00731
I
In the above-described embodiment, the package 45 is detected
by the detecting section 95, and the doffing device control section
31 determines the presence and/or the absence of the obstacle at the
cradle 70 in accordance with the detection result. However, the
15 obstacle at the cradle 70 may be detected by another method. For
example, a load applied to the cradle 70 may be obtained, and the
obstacle (the package 45) at the cradle 70 may be detected based on
the load. Alternatively, a contact sensor may be provided at a tip
end of the bobbin holding section 52, and the obstacle at the cradle
20 70maybe detectedinaccordancewithadetection result by the contact
sensor.
[0074]
In the above-describedembodiment, an example inwhichone yarn
j,oining vehicle 3 and one doffing vehicle 4 are provided for a
25 pluralityofthe spinning units 2 is described. However, the present
invention is not limited thereto. In a configuration of a spinning
machine according to the above-described embodiment and variant
embodiments, for example, apluralityof yarn joining vehicles and/or
a plurality of doffing vehicles may be provided in accordance with
30 the number of the spinning units 2.
[0075]
In the above-described embodiment, an example in which the yarn
path is arranged such that the spun yarn 10 travels in the lower
direction from the drafting device 7 located in an upper portion
35 t o w a r d s t h e w i n d i n g d e v i c e 1 3 l o c a t e d a t a l o w e r p o r t i o n i s described.
PPO B E L H I 0 2 - 0 2 - 2 0 1 5 15.24
22 / 26
!j
However, the present invention is not limited thereto and may be
applied to a spinning machine or a spinning unit where a yarn path
in which a spun yarn travels from the lower portion towards the upper
portion is arranged.
5 [0076]
In the above-described embodiment, an example in which the
doffing device 60 includes the doffing device control section 31 as
a dedicated controller adapted to perform various types of control
processing in the doffing device 60 is described. However, the
10 present invention is not limited thereto. The configuration of the
spinning machine of the above-described embodiment and the variant
embodiments may be a configuration, for example, in which the machine
control device 30 (a control section) collectively performs various
types of control processing of the spinning unit 2, the yarn joining
15 vehicle 3, and the doffing vehicle 4.
[Description of the Reference Numerals]
1 Spinning machine (Yarn winding machine)
2 Spinning unit
20 10 Spun yarn (Yarn)
31 Doffing device control section (Control section)
45 Package
48 Bobbin
50 Bobbin supplying mechanism
52 Bobbin holding section
60 Doffing device (Bobbin setting device)
6 2 Swing arm (Moving section)
65 Package supporting section (Supporting section)
70 Cradle
95 Detecting section
96 Notifying section
PO Standby position
P1 First position
P2 Second position
3 5
EPO B E L 3 I 02-02-2015 15124
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[Document Name] Scope of claims f o r patent
[Claim 1 1
A bobbin s e t t i n g device comprising:
a bobbin holding s e c t i o n adapted t o hold a bobbin around which
a yarn is t o be wound and t o perform a supplying operation t o supply
t h e bobbin t o a t a r g e t p o s i t i o n ; and
a c o n t r o l s e c t i o n adapted t o s t o p t h e supplying operation
performed by t h e bobbin holding s e c t i o n when an o b s t a c l e t h a t
interfereswiththesupplyingoperationexists a t t h e t a r g e t p o s i t i o n .
[Claim 21
The bobbin s e t t i n g device according t o claim 1, wherein the
c o n t r o l s e c t i o n is adapted t o c o n t r o l t h e bobbin holding s e c t i o n t o
supply t h e bobbin t o t h e t a r g e t p o s i t i o n when t h e o b s t a c l e does not
e x i s t a t t h e t a r g e t p o s i t i o n .
[Claim 31
The bobbin s e t t i n g device according t o claim 1 o r claim 2,
f u r t h e r c o m p r i s i n g a d e t e c t i n g s e c t i o n a d a p t e d t o d e t e c t t h e o b s t a c l e ,
wherein t h e c o n t r o l s e c t i o n is adapted t o determine a presence
and/or anabsence o f t h e o b s t a c l e a t t h e t a r g e t p o s i t i o n i n accordance
with a r e s u l t detected by t h e d e t e c t i n g s e c t i o n .
[Claim 41
The bobbin s e t t i n g device according t o claim 3, wherein the
c o n t r o l s e c t i o n is adapted t o determine t h e presence and/or the
absence of t h e o b s t a c l e a t the t a r g e t p o s i t i o n a f t e r a predetermined
p e r i o d o f time elapses froman o p e r a t i o n p e r f o r m e d t o remove apackage
from a package holding s e c t i o n , the package holding s e c t i o n bei.ng
a d a p t e d t o hold t h e package which i s formedbywindingthe yarn around
t h e bobbin.
[Claim 51
The bobbin s e t t i n g device according t o claim 3, f u r t h e r
comprising:
a supporting s e c t i o n adapted t o support a package which is
formed by winding t h e yarn around t h e bobbin; and
a moving s e c t i o n adapted t o move t h e supporting s e c t i o n t o a
standby p o s i t i o n , a f i r s t p o s i t i o n , and a second p o s i t i o n , t h e f i r s t
BEkHI E L - 0 2 - 2 0 1 % 15124
24 / 26
p o s i t i o n being a p o s i t i o n where t h e supporting s e c t i o n receives the
package, a n d t h e secondpositionbeingapositionwherethe supporting
s e c t i o n r e l e a s e s t h e package received a t t h e f i r s t p o s i t i o n ,
w h e r e i n t h e c o n t r o l s e c t i o n i s a d a p t e d t o d e t e r m i n e t h e p r e s e n c e
5 and/or the absence of t h e o b s t a c l e a t the t a r g e t p o s i t i o n a f t e r the
moving s e c t i o n has moved t h e supporting s e c t i o n from t h e f i r s t
p o s i t i o n t o t h e standby p o s i t i o n .
[Claim 61
T h e b o b b i n s e t t i n g d e v i c e a c c o r d i n g t o a n y o n e o f c l a i m 1 t h r o u g h
10 claim 5, f u r t h e r comprising a n o t i f y i n g s e c t i o n adapted t o n o t i f y
an occurrence of abnormality when t h e o b s t a c l e e x i s t s a t t h e t a r g e t
p o s i t i o n .
[Claim 71
A yarn winding machine comprising:
15 t h e b o b b i n s e t t i n g d e v i c e a c c o r d i n g t o a n y o n e o f c l a i m ' l t h r o u g h
claim 6; and
a p l u r a l i t y o f y a r n w i n d i n g u n i t s , e a c h o f t h e y a r n w i n d i n g u n i t s
being adapted t o wind t h e yarn around t h e bobbin t o form a package,
and i n c l u d i n g a package holding s e c t i o n adapted t o hold t h e package,
20 wherein t h e t a r g e t p o s i t i o n is a p o s i t i o n where t h e bobbin is
held by the package holding s e c t i o n .