ANALYZING DEVICE AND SPINNING MACHINE
TECHNICAL FIELD
[0001] The present disclosure relates to an analyzing device and a
spinning machine for yarn to be 5 processed in textile machinery.
BACKGROUND
[0002] Spinning devices each including a yarn-defect detection device
configured to measure the thickness of yarn to detect a defect of the
yarn and each configured to cut the yarn on the basis of information on
10 the thickness of the yarn detected by the yarn-defect detection device
are known. The defect of the yarn herein means a yarn defect such as
a slub, indicating an abnormal part where yarn thickness varies. An
analyzing device (abnormal spindle-identifying system) is disclosed
(see Japanese Unexamined Patent Publication No. 2007-224452, for
15 example) that can identify an abnormal part by storing such information
on yarn thickness to perform frequency analysis on the information, and
by identifying a period in which a yarn defect occurs (hereinafter called
"period or frequency of the yarn defect").
SUMMARY
20 [0003] In the conventional analyzing device described above, a result of
performing frequency analysis on the information on yarn thickness is
displayed on a screen. However, this result is merely information
indicating the frequency (period) of the defect, and thus in which part
abnormality, for example, has occurred cannot be identified only by
25 glancing the information. In view of this, an operator who has viewed
the screen needs to conduct an evaluation based on his/her experience.
3
Consequently, evaluation results vary depending on differences in
experience among operators, which may cause a situation in which the
abnormal part cannot be identified and the abnormal part is left
unhandled. The term "operator" herein means not only a worker who
is allowed to perform only a predetermined work or operation 5 for textile
machinery, but also a worker (maintenance technician) who is
authorized to perform general setting changes on operation and
maintenance of the textile machinery.
[0004] In view of the foregoing, the present disclosure aims to provide
10 an analyzing device and a spinning machine that can identify an
abnormal part regardless of differences in experience among operators.
[0005] An analyzing device according to one aspect of the present
disclosure is an analyzing device configured to analyze yarn to be
processed in a fiber processing unit based on yarn thickness information
15 on thickness of the yarn. The analyzing device includes: an acquiring
unit configured to acquire the yarn thickness information; an analyzing
unit configured to analyze time variation of the yarn thickness based on
the yarn thickness information acquired by the acquiring unit; and a
display control unit configured to control a display to display at least
20 one graph in a result displaying area having one of an abscissa and an
ordinate for representing a frequency or a period in which a
predetermined yarn thickness appears, the other of the abscissa and the
ordinate for representing the distribution quantity of the frequency or
the period, and at least one specific region in which a region
25 corresponding to the frequency or the period in a specific range is
displayed in a visually distinguishable manner, the graph representing a
4
relation between the frequency or the period and the distribution
quantity, the relation being analyzed by the analyzing unit.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a front view of a spinning machine according to one
5 embodiment;
[0007] FIG. 2 is a functional block diagram illustrating a functional
configuration of the spinning machine in FIG. 1;
[0008] FIG. 3 illustrates one example of display of a first bar graph;
[0009] FIG. 4 illustrates one example of display of a second bar graph;
10 [0010] FIG. 5 is a diagram in which part of the first bar graph in FIG. 3
is illustrated in an enlarged manner;
[0011] FIG. 6 illustrates one example of a pop-up display;
[0012] FIG. 7 is a diagram in which part of the second bar graph in FIG.
4 is illustrated in an enlarged manner;
15 [0013] FIG. 8 illustrates one example of a pop-up display;
[0014] FIG. 9 illustrates an example of display of a first bar graph and a
second bar graph according to a modification 1;
[0015] FIG. 10A illustrates one example of a first bar graph in which
the range of frequencies in the abscissa is 0 Hz to 200 Hz;
20 [0016] FIG. 10B illustrates one example of the first bar graph in which
the range of frequencies in the abscissa is 0 Hz to 10 Hz;
[0017] FIG. 11 illustrates one example of a second bar graph according
to a modification;
[0018] FIG. 12 illustrates one example of a second bar graph according
25 to another modification; and
[0019] FIG. 13 illustrates an example of display of a first bar graph and
5
a second bar graph according to still another modification.
DETAILED DESCRIPTION
[0020] One embodiment will now be described with reference to the
drawings. In the description of the drawings, like elements are
designated by like numerals, and duplicate description 5 is omitted.
[0021] The following describes a spinning machine 1 with an analyzing
device 60 according to the embodiment. As depicted in FIG. 1, the
spinning machine 1 includes a plurality of spinning units 2, a splicing
carrier 3, a doffing carrier (not depicted), a first end frame 4, and a
10 second end frame 5. The spinning units 2 are aligned in a row. Each
spinning unit 2 generates yarn Y and winds the yarn into a package P.
When the yarn Y is cut or breaks in a spinning unit 2 for any reason, the
splicing carrier 3 splices the yarn Y in the spinning unit 2. When the
package P becomes a full roll in a spinning unit 2, the doffing carrier
15 doffs the package P and supplies a new bobbin 14 to the spinning unit 2.
[0022] Each spinning unit 2 includes, in the order from the upstream
side in a direction in which the yarn Y travels, a drafting device 6, an air
spinning device 7, a yarn monitoring device 8, a tension sensor 9, a yarn
storage device 11, a waxing device 12, and a winding device 13.
20 However, the unit controller 10 may be provided for each of the
spinning units 2.
[0023] The drafting device 6 drafts a sliver (fiber bundle) S. The air
spinning device 7 generates the yarn Y by twisting the fiber bundle F
drafted by the drafting device 6 using swirling airflow. The drafting
25 device 6 has a plurality of pairs of drafting rollers 16, 17, 19, and 20 that
are disposed along a direction in which the sliver S is fed (conveying
6
direction), and uses these drafting rollers 16, 17, 19, and 20 to draft the
fiber bundle F. The drafting device 6 includes, as the drafting rollers
16, 17, 19, and 20, back rollers 16, third rollers 17, middle rollers 19
around which apron belts 18 are each wound, and front rollers 20. The
drafting rollers 16, 17, 19, and 20 are top rollers 5 16a, 17a, 19a, and 20a
and bottom rollers 16b, 17b, 19b, and 20b, respectively provided in pair.
The top rollers 16a, 17a, 19a, and 20a and the bottom rollers 16b, 17b,
19b, and 20b are disposed so as to sandwich the sliver S therebetween.
The apron belts 18 are a top apron belt 18a and a bottom apron belt 18b.
10 [0024] The drafting device 6 includes motors configured to drive the
respective bottom rollers of the drafting rollers 16, 17, 19, and 20. In
the present embodiment, one motor drives and rotates one drafting
roller, but one motor may drive and rotate a plurality of drafting rollers.
For example, the back rollers 16 and the third rollers 17 that are
15 low-speed drafting rollers may be both driven and rotated by one motor.
Alternatively, one or adjacent two back bottom rollers 16b may be
driven by one motor, one or adjacent two third bottom rollers 17b may
be driven by one motor, middle bottom rollers 19b of all spinning units
2 or a predetermined number of spinning units 2 may be simultaneously
20 driven and rotated by one motor, and front bottom rollers 20b of all
spinning units 2 or a predetermined number of spinning units 2 may be
simultaneously driven and rotated by one motor.
[0025] The yarn storage device 11 eliminates slack in the yarn Y
between the air spinning device 7 and the winding device 13. The
25 waxing device 12 applies wax to the yarn Y between the yarn storage
device 11 and the winding device 13. The winding device 13 winds
7
the yarn Y onto the bobbin 14 to form the package P.
[0026] The yarn monitoring device 8 monitors information on traveling
yarn Y between the air spinning device 7 and the yarn storage device 11
to detect the presence or absence of a yarn defect on the basis of the
monitored information. When having detected a 5 yarn defect, the yarn
monitoring device 8 transmits a yarn defect detection signal to the unit
controller 10. The tension sensor 9 measures the tension of traveling
yarn Y between the air spinning device 7 and the yarn storage device 11,
and transmits a tension measurement signal to the unit controller 10.
10 When the unit controller 10 determines that abnormality has occurred
based on at least one of a result of detection by the yarn monitoring
device 8 and a result of detection by the tension sensor 9, the yarn Y is
cut in the spinning unit 2.
[0027] The unit controller 10 is provided in every predetermined
15 number of spinning units 2, and controls operations of the spinning units
2. The unit controller 10 includes a central processing unit (CPU), a
read only memory (ROM), a random access memory (RAM), and an
input/output port, which are not depicted. The ROM stores therein a
program for controlling the respective components of the spinning units
20 2. The CPU can perform processing for controlling the respective
components of the spinning units 2 by reading a winding program
stored in the ROM into the RAM and executing the winding program.
The input/output port included in each unit controller 10 is connected to
the machine control device 51, and is configured to be able to transmit
25 and receive information therethrough.
[0028] Each unit controller 10 in the present embodiment is electrically
8
connected to the yarn monitoring devices 8, and receives information on
yarn thickness (apparent yarn thickness) output from each yarn
monitoring device 8 to determine whether periodic yarn irregularities
(periodic irregularities) are formed in the corresponding yarn Y. In
each spinning unit 2, based on the presence or 5 absence of periodic
irregularities, cutting of the corresponding yarn Y is controlled. The
unit controller 10 outputs the information on yarn thickness to the
machine control device 51 described later in detail.
[0029] The first end frame 4 accommodates, for example, a collection
10 device configured to collect fiber waste, yarn waste, and the like
generated in the spinning unit 2. The second end frame 5
accommodates, for example, an air supply unit configured to adjust air
pressure of compressed air (air) supplied to the spinning machine 1 and
supply the air to the respective units in the spinning machine 1 and a
15 driving motor configured to supply power to the respective units in the
spinning unit 2.
[0030] The second end frame 5 includes the machine control device 51,
a display device (display unit) 52, and an input key 53. The machine
control device 51 intensively manages and controls the respective units
20 of the spinning machine 1. The display device 52 can display, for
example, information on at least the settings or the status of the spinning
unit 2. An operator can set the spinning unit 2 by performing
necessary operations through the input key 53.
[0031] The machine control device 51 includes a CPU, a RAM, a
25 ROM, and an input/output port. The ROM stores therein a control
program for controlling the spinning units 2. The CPU can control at
9
least one of each component of the spinning units 2 and a shared device
by reading the control program stored in the ROM into the RAM and
executing the control program.
[0032] The analyzing device 60 analyzes yarn Y to be processed in each
spinning unit 2 on the basis of yarn thickness 5 information of the yarn Y.
The analyzing device 60 is a circuit configured to analyze yarn Y to be
processed in each spinning unit 2 on the basis of yarn thickness
information of the yarn Y. The analyzing device 60 in the present
embodiment is structured as the machine control device 51.
10 Specifically, the machine control device 51 (hereinafter called
"analyzing device 60") as the analyzing device 60 can cause an
acquiring unit 60A, an analyzing unit 60B, and a display control unit
60C to function as depicted in FIG. 2 by cooperative operation of the
hardware and the software described above.
15 [0033] The acquiring unit 60A acquires the yarn thickness information.
Specifically, the acquiring unit acquires information on yarn thickness
output from the unit controller 10, and stores therein the information.
The acquiring unit 60A is a circuit configured to acquire information on
yarn thickness output from the unit controller 10 and stores therein the
20 information. The unit controller 10 acquires the information on yarn
thickness from the yarn monitoring device 8.
[0034] The analyzing unit 60B analyzes time variation of yarn
thickness obtained from the yarn thickness information. The analyzing
unit 60B is a device or a circuit configured to analyze time variation of
25 yarn thickness obtained from the yarn thickness information. More
specifically, the analyzing unit is a device or a circuit configured to
10
acquire yarn thickness information, analyze the time variation of yarn
thickness on the basis of the acquired yarn thickness information, and
control the display unit to display a graph in a result displaying area
having one of an abscissa and an ordinate for representing a frequency
or a period in which a predetermined yarn thickness 5 appears, the other
of the abscissa and the ordinate for representing a distribution quantity
of the frequency or the period, and at least one specific region in which
a region corresponding to frequencies or periods in a specific range is
displayed in a visually distinguishable manner. The graph represents a
10 relation between the frequency or the period and a distribution quantity
is displayed in a result displaying area, and the relation is identified by
the analysis of the time variation. Specifically, the analyzing unit
performs frequency analysis on the information on yarn thickness
output from the unit controller 10. The analyzing unit 60B, as the
15 frequency analysis, performs fast Fourier transformation (FFT)
computation, for example, transforms the time axis into a period, and
generates data representing a first bar graph (graph/first graph) BG1
depicted in FIG. 3. In other words, the analyzing unit 60B generates
data for outputting a spectrogram based on the information on yarn
20 thickness output from the unit controller 10. The analyzing unit 60B,
as the frequency analysis, performs the fast Fourier transformation
(FFT) computation and bandpass filtering, for example, and generates
data with which a second bar graph (graph/second graph) BG2 depicted
in FIG. 4 can be displayed.
25 [0035] As depicted in FIG. 3, the display control unit 60C controls the
display device 52 such that a first bar graph BG1 representing with bars
11
B a relation between periods and peak intensities (intensity) (CV%)
(distribution quantities) corresponding to the respective periods is
displayed in an overlapping manner in a result displaying area R1.
The result displaying area has an abscissa AX for representing the
periods, an ordinate AY for representing the peak 5 intensities, and
specific regions Ba, Bb, Bc, and Bd that are regions corresponding to
periods in specific ranges and are displayed in a visually distinguishable
manner. The relation is a result of analysis performed by the analyzing
unit 60B. The display control unit 60C is a circuit configured to
10 control the display device 52 such that the first bar graph BG1
representing with the bars B the relation between periods and peak
intensities (intensity) (CV%) (distribution quantities) corresponding to
the respective periods, which is a result of analysis performed by the
analyzing unit 60B, is displayed in an overlapping manner in the result
15 displaying area R1 having the abscissa AX for representing the periods,
the ordinate AY for representing the peak intensities, and the specific
regions Ba, Bb, Bc, and Bd that are regions corresponding to periods in
specific ranges and are displayed in a visually distinguishable manner.
[0036] Herein, the expression "the first bar graph BG1 is displayed in
20 an overlapping manner in the result displaying area R1" means that the
first bar graph BG1 is displayed so as to be aligned with the scales of
the abscissa AX and the ordinate AY displayed in the result displaying
area R1. CV% is a "yarn-thickness uniformity ratio (yarn-irregularity
uniformity ratio)", which is one of indices representing the quality of
25 yarn, is a value obtained by dividing the standard deviation of yarn
thickness by the average, and is expressed by the following equation.
12
CV(%) = standard deviation of yarn thickness  average of yarn
thickness  100(%)
[0037] For example, it is assumed herein that the following items are
known based on empirical rules, theoretical values, and the like.
 When a value equal to or larger than a predetermined 5 threshold
appears in a period that belongs to a periodic range Ra, abnormality
may have occurred in the front rollers 20.
 When a value equal to or larger than a predetermined threshold
appears in a period that belongs to a periodic range Rb, abnormality
10 may have occurred in the middle rollers 19.
 When a value equal to or larger than a predetermined threshold
appears in a period that belongs to a periodic range Rc, abnormality
may have occurred in the third rollers 17.
 When a value equal to or larger than a predetermined threshold
15 appears in a period that belongs to a periodic range Rd, abnormality
may have occurred in the back rollers 16.
These thresholds are values that are determined in advance for
the respective periods.
[0038] The display control unit 60C causes the specific regions Ba, Bb,
20 Bc, and Bd to be displayed in colors different from that of the other
region (background) B0 excluding the specific regions Ba, Bb, Bc, and
Bd. The specific regions Ba, Bb, Bc, and Bd may be displayed in
colors different from each other, or may be displayed in the same color.
[0039] Such coloring caused by the display control unit 60C enables the
25 operator to objectively recognize, for example, that abnormality may
have occurred in the front rollers 20 when the specific region Ba
13
containing the periodic range Ra overlaps a bar B that represents a peak
intensity exceeding the predetermined threshold. In the same manner,
the operator can objectively recognize, for example, that abnormality
may have occurred in the middle rollers 19 when the specific region Bb
containing the periodic range Rb overlaps a bar 5 B representing a peak
intensity exceeding the predetermined threshold, that abnormality may
have occurred in the third rollers 17 when the specific region Bc
containing the periodic range Rc a bar B representing a peak intensity
exceeding the predetermined threshold, and that abnormality may have
10 occurred in the back rollers 16 when the specific region Bd containing
the periodic range Rd overlaps a bar B representing a peak intensity
exceeding the predetermined threshold.
[0040] Furthermore, the display control unit 60C causes a bar B the
peak intensity of which exceeds the predetermined threshold to be
15 displayed in a manner visually distinguishable from bars B the peak
intensities of which do not exceed the predetermined thresholds. For
example, as depicted in FIG. 5, the display control unit 60C causes a bar
B the peak intensity of which exceeds the predetermined threshold to be
displayed in a color (hatched in FIG. 5) different from that of bars B the
20 peak intensities of which do not exceed the predetermined thresholds.
Over the result displaying area R1, a graph of the thresholds described
above (i.e., thresholds for the respective periods) may be displayed.
[0041] The term "colors" used in the description herein contains hue,
brightness, and a combination of hue and brightness. For example, the
25 display control unit 60C may control the display device 52 such that the
different specific regions Ba, Bb, Bc, and Bd are displayed in hues (or
14
brightnesses) different from each other, and the specific region Ba, Bb,
Bc, or Bd containing a distribution quantity exceeding the
predetermined threshold is displayed in a brightness (or a hue) that is
further changed.
[0042] Furthermore, when the specific region 5 Ba, Bb, Bc, or Bd is
selected (for example, a pointer A1 is placed thereover as depicted in
FIG. 6), the display control unit 60C causes a defect factor, which is
highly relevant to periods in a specific range corresponding to each of
the specific regions Ba, Bb, Bc, and Bd, to be displayed in a visible
10 manner. For example, as depicted in FIG. 6, when the specific region
Bb is selected by the operator, a message M1 saying "abnormality may
have occurred in the middle rollers." pops up.
[0043] As depicted in FIG. 4, the display control unit 60C controls the
display device 52 such that the second bar graph BG2 is displayed in an
15 overlapping manner in a result displaying area R2 having an abscissa
AX for representing periodic bands, an ordinate AY for representing
peak intensities (intensity) (CV%) (distribution quantities)
corresponding to the respective periodic bands, and specific regions Be,
Bf, Bg, Bh, and Bi that are regions corresponding to periodic bands in
20 specific ranges and are displayed in a visually distinguishable manner.
[0044] For example, it is assumed herein that the following items are
known based on empirical rules, theoretical values, and the like.
 When a value equal to or larger than a predetermined threshold
appears in a period that belongs to a periodic band range Re,
25 abnormality may have occurred in the front bottom roller 20b.
 When a value equal to or larger than a predetermined threshold
15
appears in a periodic band that belongs to a periodic band range Rf,
abnormality may have occurred in the front top roller 20a.
 When a value equal to or larger than a predetermined threshold
appears in a periodic band that belongs to a periodic band range Rg,
abnormality may have occurred in the m 5 iddle top roller 19a.
 When a value equal to or larger than a predetermined threshold
appears in a periodic band that belongs to a periodic band range Rh,
abnormality may have occurred in the bottom apron belt 18b.
 When a value equal to or larger than a predetermined threshold
10 appears in a periodic band that belongs to a periodic band range Ri,
abnormality may have occurred in a driving motor (not depicted) for the
third bottom roller 17b.
Each threshold herein is a value that is determined in advance
for a protruding amount relative to peak intensities in the adjacent
15 periodic bands. Thus, depending on peak intensities in the adjacent
periodic bands, even the same value may be determined to be smaller
than the threshold.
[0045] The display control unit 60C causes the specific regions Be, Bf,
Bg, Bh, and Bi to be displayed in colors different from that of the other
20 region (background) B0 excluding the specific regions Be, Bf, Bg, Bh,
and Bi. The specific regions Be, Bf, Bg, Bh, and Bi may be displayed
in colors different from each other, or may be displayed in the same
color.
[0046] Such coloring caused by the display control unit 60C enables the
25 operator to objectively recognize, for example, that abnormality may
have occurred in the front bottom roller 20b when the specific region Be
16
containing the periodic band range Re overlaps a bar B that represents a
peak intensity exceeding the predetermined threshold. In the same
manner, the operator can objectively recognize, for example, that
abnormality may have occurred in the front top roller 20a when the
specific region Bf containing the periodic band range 5 Rf overlaps a bar
B representing a peak intensity exceeding the predetermined threshold,
that abnormality may have occurred in the middle top roller 19a when
the specific region Bg containing the periodic band range Rg overlaps a
bar B representing a peak intensity exceeding the predetermined
10 threshold, that abnormality may have occurred in the bottom apron belt
18b when the specific region Bh containing the periodic band range Rh
overlaps a bar B representing a peak intensity exceeding the
predetermined threshold, and that abnormality may have occurred in the
driving motor for the third bottom roller 17b when the specific region Bi
15 containing the periodic band range Ri overlaps a bar B representing a
peak intensity exceeding the predetermined threshold.
[0047] Furthermore, the display control unit 60C causes a bar B the
peak intensity of which exceeds the predetermined threshold to be
displayed in a manner visually distinguishable from bars B the peak
20 intensities of which do not exceed the predetermined thresholds. For
example, as depicted in FIG. 7, the display control unit 60C causes a bar
B the peak intensity of which exceeds the predetermined threshold to be
displayed in a color (hatched in FIG. 7) different from that of bars B the
peak intensities of which do not exceed the predetermined thresholds.
25 [0048] Furthermore, the specific region Be, Bf, Bg, Bh, or Bi is
selected (for example, a pointer A2 is placed thereover as depicted in
17
FIG. 8), the display control unit 60C causes information, which is
relevant to a part to become a factor of abnormality that occurs in
periodic bands in a specific range corresponding to each of the specific
regions Be, Bf, Bg, Bh, and Bi, to be displayed in a visible manner.
For example, as depicted in FIG. 8, when the specific 5 region Bi is
selected by a user, a message M2 saying "abnormality may have
occurred in the driving motor for the third bottom roller." pops up.
[0049] The display control unit 60C may cause the first bar graph BG1
and the second bar graph BG2 described above to be displayed for each
10 spinning unit 2, that is, for each spindle, or to be displayed for a
plurality of spindles. Alternatively, by operation of the operator, data
of a spindle to be displayed may be selected. Furthermore, when
abnormality has occurred in a spindle (when the peak intensity of each
bar exceeds the predetermined threshold), the display control unit 60C
15 may cause the first bar graph BG1 and the second bar graph BG2 for the
spindle in which abnormality has occurred to be displayed with a higher
priority.
[0050] The display control unit 60C can cause a screen to be displayed
so as to be selectively switched between a screen displaying the first bar
20 graph BG1 depicted in FIG. 3 and a screen displaying the second bar
graph BG2 depicted in FIG. 4. The first bar graph BG1 and the second
bar graph BG2 may be displayed on a single screen.
[0051] The following describes functional effects of the analyzing
device 60 according to the present embodiment. As depicted in FIG. 3,
25 in the analyzing device 60 configured as described above, the first bar
graph BG1 representing with the bars B the relation between periods
18
and peak intensities that is analyzed by the analyzing unit 60B is
displayed in the result displaying area R1 having the specific regions
Ba, Bb, Bc, and Bd that are regions corresponding to the specific
periodic ranges Ra, Rb, Rc, and Rd and are displayed in a visually
distinguishable manner. This enables the 5 operator to determine, at a
glance, to which periodic region a period the peak intensity of which
projects corresponds. As depicted in FIG. 4, in the analyzing device 60
configured as described above, the second bar graph BG2 representing
with the bars B the relation between periodic bands and peak intensities
10 that is analyzed by the analyzing unit 60B is displayed in the result
displaying area R2 having the specific regions Be, Bf, Bg, Bh, and Bi
that are regions corresponding to the specific periodic band ranges Re,
Rf, Rg, Rh, and Ri and are displayed in a visually distinguishable
manner. This enables the operator to determine, at a glance, to which
15 periodic band region a periodic band the peak intensity of which
projects corresponds.
[0052] When the specific regions Ba, Bb, Bc, and Bd or the specific
regions Be, Bf, Bg, Bh, and Bi are each displayed in different display
modes (e.g., different colors), the thresholds for changing the display
20 modes at occurrence of abnormality do not have to be determined in
advance. Displaying the specific regions Ba, Bb, Bc, and Bd or the
specific regions Be, Bf, Bg, Bh, and Bi each in different colors can help
the operator so that the operator can view the height of each bar B and
the period or the periodic band to which the bar B belongs by
25 himself/herself and can determine the presence or absence of
abnormality, a cause of the abnormality, and the level of the abnormality
19
by himself/herself. The operator can also recognize, for example, a
situation in which abnormality is likely to occur soon even if
abnormality has not yet occurred.
[0053] In the present embodiment, as depicted in FIG. 3, the specific
regions Ba, Bb, Bc, and Bd are displayed so as 5 to be respectively
associated with abnormal parts (the front rollers 20, the middle rollers
19, the third rollers 17, and the back rollers 16) derived from empirical
rules, theoretical values, and the like. Thus, for example, if the
operator identifies that a bar B the peak intensity of which projects
10 belongs to the specific region Bd, the operator can objectively recognize
that abnormality may have occurred in the back rollers 16.
Consequently, regardless of differences in experience among operators,
the abnormal part can be identified.
[0054] In the present embodiment, as depicted in FIG. 4, the specific
15 regions Be, Bf, Bg, Bh, and Bi are displayed so as to be respectively
associated with abnormal parts (the front bottom roller 20b, the front top
roller 20a, the middle top roller 19a, the bottom apron belt 18b, and the
driving motor for the third bottom roller 17b) derived from empirical
rules, theoretical values, and the like. Thus, for example, if the
20 operator identifies that a bar B the peak intensity of which projects
belongs to the specific region Bi, the operator can objectively recognize
that abnormality may have occurred in the driving motor for the third
bottom roller 17b. Consequently, regardless of differences in
experience among operators, the abnormal part can be identified.
25 [0055] In the present embodiment, the display control unit 60C causes
the specific regions Ba, Bb, Bc, and Bd to be displayed in colors
20
different from that of the other region (background) B0, which enables
the operator to easily distinguish the specific regions Ba, Bb, Bc, and
Bd. In the same manner, the display control unit 60C causes the
specific regions Be, Bf, Bg, Bh, and Bi to be displayed in colors
different from that of the other region (background) 5 B0, which enables
the operator to easily distinguish the specific regions Be, Bf, Bg, Bh,
and Bi.
[0056] The display control unit 60C causes a bar B representing a peak
intensity to be displayed for each period. Specifically, the first bar
10 graph BG1 is caused to be displayed. Thus, data for identifying a
mechanical factor can be provided.
[0057] The display control unit 60C causes a bar B representing a peak
intensity to be displayed for each periodic band. Specifically, the
second bar graph BG2 is caused to be displayed. For example, even if
15 no damage exists in the drafting rollers 16, 17, 19, and 20, due to
properties (average fiber length or distribution of fiber length, etc.) of
the sliver S, traveling of part of a fiber in the sliver S traveling between
the drafting rollers 16, 17, 19, and 20 may fluctuate, so that irregularity
(yarn irregularity) may occur in the yarn Y thus spun (for example, yarn
20 irregularity may occur when the drafting rollers 16, 17, 19, and 20 are
disposed at pitches each of which is longer than the average fiber length
of the sliver S). Such yarn irregularity does not appear as an abnormal
value in peak intensity for each period, but may appear as an abnormal
value when the peak intensity is calculated for each periodic band. In
25 the present embodiment, data for identifying a factor derived from yarn
physical properties as described above can be provided.
21
[0058] One embodiment of the present disclosure has been described in
the foregoing, the present disclosure is not limited to the embodiment.
[0059]
As depicted in FIG. 9, a display control unit 60C according to a
modification 1 may perform control such that 5 the second bar graph BG2
(see FIG. 4) representing a peak intensity for each frequency band or
each periodic band and the first bar graph BG1 (see FIG. 3) representing
a peak intensity for each frequency or each period are displayed on one
screen I of the display device 52.
10 [0060] Furthermore, for example, the display control unit 60C may
cause the second bar graph BG2 to be displayed in the result displaying
area (second result displaying area) R2, and may cause the first bar
graph BG1 to be displayed in the result displaying area (first result
displaying area) R1 such that, when one of the specific regions Be, Bf,
15 Bi, and Bx in the second bar graph BG2 is selected, one of the
corresponding regions (specific regions) in the first bar graph BG1 that
are each associated with the specific regions Be, Bf, Bi, and Bx
becomes visually distinguishable. Herein, although the term
"corresponding regions" in a different name is used in a sense that each
20 region is associated with one of the specific regions contained in the
result displaying area R in which the first bar graph BG1 is displayed,
the corresponding regions are not substantially different in character
from the respective specific regions Be, Bf, Bi, and Bx. In this case, as
the first bar graph BG1, the first bar graph BG1 for all periods may be
25 displayed, or only the first bar graph BG1 for periods that are relevant to
the selected specific region of the second bar graph BG2 may be
22
displayed. The first bar graph may be displayed in which the first bar
graph BG1 for periods that are irrelevant to the selected specific region
of the second bar graph BG2 is omitted appropriately (in consideration
of the size or easy viewability of the screen, for example).
[0061] The number of corresponding regions in the first 5 bar graph BG1
that are each associated with the specific regions Be, Bf, Bi, and Bx
may be one or may be two or more. When one of the specific regions
in the first bar graph BG1 is selected, the display control unit 60C may
causes the second bar graph to be displayed such that one of the
10 corresponding regions in the second bar graph BG2 that are each
associated with the specific regions becomes visually distinguishable.
[0062] Specific description will be made below. For example, it is
assumed herein that the following items are known based on empirical
rules, theoretical values, and the like. It is also assumed that
15 corresponding regions By and Bz in the first bar graph BG1 are
associated with a specific region Bx in the second bar graph BG2.
 When abnormality has occurred in a frequency band in the specific
region Bx of the second bar graph BG2, abnormality due to at least one
of a mechanical factor and yarn physical properties is highly likely to
20 have occurred between the middle rollers 19 and the third rollers 17.
 When a value equal to or larger than a predetermined threshold
appears in a periodic range Ry contained in the corresponding region
By, abnormality is highly likely to have occurred in the bottom apron
belt 18b.
25  When a value equal to or larger than a predetermined threshold
appears in a periodic range Rz contained in the corresponding region
23
Bz, abnormality is highly likely to have occurred in the middle top
roller 19a.
[0063] For example, if a value equal to or larger than a predetermined
threshold appears in a periodic band belonging to the periodic band
range Rx of the second bar graph BG2, this enables 5 the operator to
objectively recognize that abnormality due to at least one of a
mechanical factor and yarn physical properties is highly likely to have
occurred between the middle rollers 19 and the third rollers 17.
Herein, when the operator moves a pointer A3, for example, to select
10 the specific region Bx containing the periodic band range Rx, the
corresponding region By and the corresponding region Bz in the first
bar graph BG1 that are associated with the specific region Bx are
displayed in colors. This enables the operator to focus on values of
bars B in the corresponding regions By and Bz displayed in colors.
15 [0064] Herein, for example, when a value equal to or larger than the
predetermined threshold does not appear in a bar B in the periodic range
Ry contained in the corresponding region By, the operator can
objectively recognize that there is no possibility of abnormality in the
bottom apron belt 18b. For example, when a value equal to or larger
20 than the predetermined threshold appears in the periodic range Rz
contained in the corresponding region Bz, the operator can objectively
recognize that abnormality may have occurred in the middle top roller
19a. For example, when a projecting value appears in frequency bands
in the specific region Bx but a value equal to or larger than the
25 predetermined threshold does not appear in either of the periodic range
Ry and the periodic range Rz, the operator can objectively recognize
24
that such a value is highly likely to appear in the frequency bands in the
specific region Bx due to yarn physical properties.
[0065] As described above, with the analyzing device 60 according to
the modification 1, the operator can determine the abnormal part from a
comprehensive viewpoint considering two factors 5 of a mechanical
factor and a factor derived from yarn physical properties. Occurrence
of abnormality that is difficult to be recognized by viewing only either
one of the first bar graph BG1 and the second bar graph BG2 can be
recognized by viewing both of the first bar graph BG1 and the second
10 bar graph BG2.
[0066] If the number of abnormality locations where the predetermined
thresholds are exceeded in the second bar graph BG2 is one, the region
on the first bar graph BG1 side corresponding to the specific region that
belongs to the corresponding abnormality location may be automatically
15 displayed in color.
[0067]
In the embodiment or the modification above, examples have
been described in which the first bar graph BG1 using the period for the
abscissa AX is displayed on the display device 52, and the second bar
20 graph BG2 using the periodic band is displayed on the display device
52. However, the frequency or the frequency band may be used for the
abscissa AX.
[0068] In the embodiment or the modification above, examples have
been described in which the display control unit 60C causes the specific
25 regions Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, and Bx and the
corresponding regions By and Bz to be displayed in colors. However,
25
these regions may be displayed in any display mode if they are visually
distinguishable and, for example, may be hatched, patterned, or
displayed in other modes. Coloring of the specific regions Ba, Bb, Bc,
Bd, Be, Bf, Bg, Bh, Bi, and Bx and the corresponding regions By and
Bz may be performed by differentiating hue, 5 brightness, and a
combination of hue and brightness from the background.
[0069] In the embodiment or the modification above, examples have
been described in which, when one of the specific regions Ba, Bb, Bc,
Bd, Be, Bf, Bg, Bh, Bi, and Bx and the corresponding regions By and
10 Bz is selected by the user, the display control unit 60C receives this
selection and causes information on an abnormal part that is highly
relevant to the corresponding specific region to pop up. However, the
present disclosure is not limited to this. For example, in anywhere on
the display device 52, a legend or the like indicating a relation between
15 each of the specific regions Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, and Bx
and the corresponding regions By and Bz and the corresponding
abnormal part may be displayed. Information on the abnormal parts
may be displayed near the positions of the specific regions Ba, Bb, Bc,
Bd, Be, Bf, Bg, Bh, Bi, and Bx and the corresponding regions By and
20 Bz.
[0070] In the embodiment and the modification above, examples have
been described in which the display control unit 60C controls the
display device 52 such that a portion in which the relative difference
(protruding amount) in distribution quantity with respect to the
25 distribution quantities in the adjacent frequency bands or the adjacent
periodic bands exceeds a predetermined threshold becomes visually
26
distinguishable from a portion in which the relative difference does not
exceed the predetermined threshold. However, the present disclosure
is not limited to this. For example, the display control unit may
control the display device 52 such that a portion in which the absolute
value of the distribution quantity of a frequency band 5 or a periodic band
exceeds a predetermined value becomes visually distinguishable from a
portion in which the absolute value does not exceed the predetermined
value.
[0071] All of the backgrounds of the bar graphs (the first bar graph
10 BG1 and the second bar graph BG2) may be displayed in the same
display mode (e.g., in the same color). When a bar B exceeds a
threshold, the bar B may be displayed in a color that is determined in
advance for a region to which the bar B exceeding the threshold
belongs. For example, a bar graph for each period may be displayed in
15 an area in which a plurality of specific regions are displayed in a
visually distinguishable manner (displayed in colors) in the background
as in the embodiment described above, and all the background of a bar
graph for each periodic band may be displayed in the same display
mode (e.g., in the same color). When a bar B exceeds a threshold, the
20 bar B may be displayed in a color that is determined in advance for a
region to which the bar B exceeding the threshold belongs. All the
background of a bar graph for each period may be displayed in the same
display mode (e.g., in the same color). When a bar B exceeds a
threshold, the bar B may be displayed in a color that is determined in
25 advance for a region to which the bar B exceeding the threshold
belongs. A bar graph for each periodic band may be displayed in an
27
area in which a plurality of specific regions are displayed in a visually
distinguishable manner (displayed in colors) in the background as in the
embodiment described above.
[0072] In the bar graphs, examples have been described in which a bar
B exceeding a predetermined threshold is displayed 5 in a color that is
different from that of bars B the peak intensities of which do not exceed
the predetermined threshold (hatched in FIG. 7). However, for
example, the bar B may be displayed in "blue under normal conditions,
yellow if exceeding a first threshold, and red if exceeding a second
10 threshold". In other words, a plurality of thresholds may be set for a
single bar B, and different display modes may be used for a plurality of
settings. In the result displaying area R1 in which the bar graph is
displayed, graphs each representing the first threshold and the second
threshold may be displayed in display modes different from each other
15 (e.g., with a yellow continuous line and a red continuous line). Herein,
an example has been described in which the color of the graph
representing the first threshold and the color of the bar B exceeding the
first threshold are the same, and the color of the graph representing the
second threshold and the color of the bar B exceeding the second
20 threshold are the same. However, the present disclosure is not limited
to this.
[0073] The analyzing device 60 may be configured to be able to display
only the first bar graph BG1, or may be configured to be able to display
only the second bar graph BG2.
25 [0074] Coordinated display of the first bar graph BG1 and the second
bar graph BG2 as described in the modification 1 is not limited to an
28
example in which these bar graphs are displayed on one screen of one
display device 52 as depicted in FIG. 9. The coordinated display may
be performed by switching between the screen displaying the first bar
graph BG1 and the screen displaying the second bar graph BG2 on one
screen of the display device 52. Alternatively, as depicted 5 in FIG. 13,
the coordinated display may be performed by providing two display
devices 52, displaying the first bar graph BG1 on one display device 52,
and displaying the second bar graph BG2 on the other display device
52.
10 [0075] The first bar graph having the abscissa representing the period or
the frequency may be displayed so as to be divided into two graphs, one
for short periods in which the range of periods in the abscissa is
relatively short, and one for long periods in which the range of periods
in the abscissa is relatively long. For example, the first bar graph may
15 be displayed so as to be divided into two graphs of the first bar graph
BG1 as depicted in FIG. 10A in which the range of frequencies in the
abscissa is 0 Hz to 200 Hz and the first bar graph BG1 as depicted in
FIG. 10B in which the range of frequencies in the abscissa is 0 Hz to 10
Hz. By this displaying, for example, when the specific regions
20 described above are positioned very close to one another within a
predetermined range, the individual specific regions seem to be overlap
each other and are difficult to be visually identified in the first bar graph
BG1 depicted in FIG. 10A, whereas the specific regions are displayed so
as to be spaced apart from each other in the first bar graph BG1 depicted
25 in FIG. 10B. This facilitates the individual specific regions to be
visually identified. The range of frequencies in the first bar graph BG1
29
in which the range in the abscissa is narrow is not limited to the range of
0 Hz to 10 Hz as depicted in FIG. 10B, and may be an optional range.
Similar displaying may be used for the second bar graph BG2.
[0076] In the embodiment or the modifications above, examples have
been described in which a relation between frequencies 5 (frequency
bands) or periods (periodic bands) and distribution quantities that is
analyzed by the analyzing unit 60B is displayed as a bar graph.
However, for example, the relation between frequencies (frequency
bands) or periods (periodic bands) and distribution quantities may be
10 displayed as a line graph as depicted in FIG. 11, or may be displayed as
a dot matrix as depicted in FIG. 12. The line graph and the dot matrix
may be displayed in an overlapping manner.
[0077] In such a modification, the display control unit 60C may control
the display device 52 such that, for example, a dot that exceeds a
15 predetermined threshold becomes visually distinguishable from dots
that do not exceed the predetermined threshold. In this modification,
the operator can be effectively notified of a location where a problem
may have occurred.
[0078] In the embodiment or the modifications above, examples have
20 been described in which the results of analysis performed by the
analyzing device 60 are displayed on the display device 52 of the
second end frame 5, but the present disclosure is not limited to this.
For example, the analysis result may be displayed on a display device
(not depicted) provided on the spinning unit 2 side, or may be displayed
25 on another server, a personal computer, a smart phone, or the like that is
accessibly connected via a wired or wireless LAN, for example. The
30
analyzing device 60 does not have to directly control the display device
52, another server, a personal computer, a smart phone, or the like that is
accessibly connected via a wired or wireless LAN, for example, and
may be configured to only generate data (e.g., image data) that can be
displaced on these 5 display devices.
[0079] In the embodiment or the modifications above, examples have
been described in which the result displaying area R1 (R2) has a
plurality of specific regions, but the result displaying area may have
only one specific region.
10 [0080] At least some parts of the embodiment and the modifications
described above may be optionally used in combination.
[0081] An analyzing device according to one aspect of the present
disclosure is an analyzing device configured to analyze yarn to be
processed in a fiber processing unit based on yarn thickness information
15 on thickness of the yarn. The analyzing device includes: an acquiring
unit configured to acquire the yarn thickness information; an analyzing
unit configured to analyze time variation of the yarn thickness based on
the yarn thickness information acquired by the acquiring unit; and a
display control unit configured to control a display to display at least
20 one graph in a result displaying area having one of an abscissa and an
ordinate for representing a frequency or a period in which a
predetermined yarn thickness appears, the other of the abscissa and the
ordinate for representing the distribution quantity of the frequency or
the period, and at least one specific region in which a region
25 corresponding to the frequency or the period in a specific range is
displayed in a visually distinguishable manner, the graph representing a
31
relation between the frequency or the period and the distribution
quantity, the relation being analyzed by the analyzing unit.
[0082] In the analyzing device thus configured, the relation between the
frequency or the period and the distribution quantity analyzed by the
analyzing unit is displayed as a graph in the result 5 displaying area
having the specific region in which the region corresponding to the
frequency or the period in the specific range is displayed in a visually
distinguishable manner. This enables an operator to determine, at a
glance, which frequency region (periodic region) a frequency (period)
10 with a projecting distribution quantity corresponds to. For example,
when a relation between a frequency region (periodic region) and an
abnormal part (e.g., a drafting roller) is derived from empirical rules,
theoretical values, and the like, setting this frequency region (periodic
region) as the specific region that is displayed in a visually
15 distinguishable manner enables the operator to identify the abnormal
part only by checking which specific region the region with a projecting
distribution quantity belongs to. Consequently, regardless of
differences in experience among operators, the abnormal part can be
identified.
20 [0083] The term "graph" herein means a diagram representing a relation
between two quantities or among two or more quantities that correspond
to each other. The specific region displayed in the result displaying
area may be provided singly or in plurality. When the specific region
is provided in plurality, a plurality of abnormalities can be easily
25 identified. The number of specific regions may be four or more.
[0084] In the analyzing device according to one aspect of the present
32
disclosure, the display control unit may control the display unit so as to
display at least one of a graph representing the distribution quantity for
each frequency or each period and a graph representing the distribution
quantity for each frequency band that is a predetermined range of the
frequency or for each periodic band that is a predetermined 5 range of the
period. The graph representing the distribution quantity for each
frequency or each period can provide data for identifying a mechanical
factor, and the graph representing the distribution quantity for each
frequency band or each periodic band can provide data for identifying a
10 factor derived from yarn physical properties.
[0085] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit such
that a portion in which the distribution quantity exceeds a predetermined
threshold becomes visually distinguishable from a portion in which the
15 distribution quantity does not exceed the predetermined threshold.
This analyzing device can effectively notify the operator of a location
where a problem may have occurred.
[0086] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit such
20 that a portion in which the distribution quantity exceeds a predetermined
threshold with respect to the distribution quantity in an adjacent
frequency band or an adjacent periodic band becomes visually
distinguishable from a portion in which the distribution quantity does
not exceed the predetermined threshold. This analyzing device can
25 effectively notify the operator of a location where a problem may have
occurred.
33
[0087] In the analyzing device according to one aspect of the present
disclosure, the display control unit may receive selection of the specific
region made by operation of an operator. This analyzing device can
manage various types of information in association with the specific
5 region.
[0088] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit so as to
display a first result displaying area and a second result displaying area
as the result displaying area, display a first graph representing the
10 distribution quantity for each frequency or each period in the first result
displaying area, display a second graph representing the distribution
quantity for each frequency band or each periodic band in the second
result displaying area, and having received selection of one specific
region contained in the result displaying area in which one of the first
15 graph and the second graph is displayed, make visually distinguishable
at least one specific region contained in the result displaying area in
which the other of the first graph and the second graph is displayed, the
at least one specific region being associated with the one specific
region. This analyzing device can determine the abnormal part from a
20 comprehensive viewpoint considering two factors of a mechanical
factor and a factor derived from yarn physical properties.
[0089] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit such
that, when selection of the specific region has been received,
25 information on a part to become a factor of abnormality that occurs in
the frequency or the period in the specific range corresponding to the
34
specific region becomes visually distinguishable. This analyzing
device enables the operator to know the abnormal part without referring
to, for example, a list that represents a relation between each specific
region and the corresponding abnormal part.
[0090] In the analyzing device according to one 5 aspect of the present
disclosure, the graph may be a bar graph. This analyzing device can
display the relation between the frequency or the period and the
distribution quantity in an easily understandable manner.
[0091] In the analyzing device according to one aspect of the present
10 disclosure, the display control unit may control the display unit so as to
display a bar of the bar graph representing the distribution quantity for
each frequency or each period. This analyzing device can provide data
for identifying a mechanical factor.
[0092] In the analyzing device according to one aspect of the present
15 disclosure, the display control unit may control the display unit such
that the bar having a distribution quantity exceeding a predetermined
threshold becomes visually distinguishable from the bar having a
distribution quantity not exceeding the predetermined threshold. This
analyzing device can effectively notify the operator of a location where
20 a problem may have occurred.
[0093] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit so as to
display a bar of the bar graph representing the distribution quantity for
each frequency band or each periodic band. This analyzing device can
25 provide data for identifying a factor derived from yarn physical
properties.
35
[0094] In the analyzing device according to one aspect of the present
disclosure, the display control unit may control the display unit such
that a bar having a protruding amount relative to the distribution
quantity in an adjacent frequency band or an adjacent periodic band
exceeding a predetermined threshold becomes visually 5 distinguishable
from the bar having a protruding amount not exceeding the
predetermined threshold. This analyzing device can effectively notify
the operator of a location where a problem may have occurred.
[0095] In the analyzing device according to one aspect of the present
10 disclosure, the display control unit may control the display unit such
that the specific region is displayed in a display mode different from
that of the other region. This analyzing device enables the operator to
easily distinguish the region corresponding to the frequency or the
period in the specific range. In other words, in both cases when
15 abnormality has occurred and when abnormality has not occurred, the
specific region can be easily recognized. This analyzing device can
effectively notify the operator of a location where a problem may have
occurred.
[0096] In the analyzing device according to one aspect of the present
20 disclosure, the display control unit may control the display unit such
that the specific region is displayed in a color different from that of the
other region. This analyzing device can effectively notify the operator
of a location where a problem may have occurred. In addition to cases
in which only differences in tint (hue), such as red, blue and green, are
25 differentiated, the expression "is displayed in a different color" herein
expresses a concept including cases in which only the degree of color
36
lightness (brightness), such as black, dark gray and light gray, is
differentiated, and also cases in which a combination of hue and
brightness are differentiated.
[0097] In the analyzing device according to one aspect of the present
disclosure, the specific region may include 5 at least a region
corresponding to a frequency or a period corresponding to a rotation
period of a front top roller that is calculated based on a radius of the
front top roller and a rotation speed of the front top roller. This
analyzing device can provide data for identifying a malfunction that
10 may occur due to a mechanical factor in a drafting device.
[0098] A spinning machine according to one aspect of the present
disclosure includes: a drafting device configured to draft a fiber bundle;
an air spinning device configured to generate yarn by twisting the fiber
bundle drafted by the drafting device; a winding device configured to
15 wind the yarn generated by the air spinning device to form a package;
the aforementioned analyzing device; and a display unit. The display
unit displays a graph in the result displaying area, the graph representing
a relation between the frequency or the period and the distribution
quantity, the relation being analyzed by the analyzing unit.
20 [0099] In the spinning machine thus configured, the relation between
the frequency or the period and the distribution quantity analyzed by the
analyzing unit is displayed as a graph in the result displaying area
having the specific region in which the region corresponding to the
frequency or the period in the specific range is displayed in a visually
25 distinguishable manner. This enables the operator to determine, at a
glance, which frequency region (periodic region) a frequency (period)
37
the projecting distribution quantity corresponds to. For example, when
a relation between a frequency region (periodic region) and an abnormal
part (e.g., a drafting roller) is derived from empirical rules, theoretical
values, and the like, setting this frequency region (periodic region) as
the specific region that is displayed in a visually distinguishable 5 manner
enables the operator to identify the abnormal part only by checking
which specific region the region with the projecting distribution
quantity belongs to. Consequently, regardless of differences in
experience among operators, the abnormal part can be identified.

We Claim:
1. An analyzing device (60) configured to analyze yarn (Y) to be
processed in a fiber processing unit (2) based on yarn thickness
information on thickness of the yarn (Y), the analyzing device (60)
5 comprising:
an acquiring unit (60A) configured to acquire the yarn thickness
information;
an analyzing unit (60B) configured to analyze time variation of
the yarn thickness based on the yarn thickness information acquired by
10 the acquiring unit (60A); and
a display control unit (60C) configured to control a display unit
(52) to display at least one graph (BG1, BG2) in a result displaying area
(R1, R2) having one of an abscissa (AX) and an ordinate (AY) for
representing a frequency or a period in which a predetermined yarn
15 thickness appears, the other of the abscissa (AX) and the ordinate (AY)
for representing a distribution quantity of the frequency or the period,
and at least one specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx,
By, Bz) in which a region corresponding to the frequency or the period
in a specific range is displayed in a visually distinguishable manner, the
20 graph (BG1, BG2) representing a relation between the frequency or the
period and the distribution quantity, the relation being analyzed by the
analyzing unit (60B).
2. The analyzing device (60) according to claim 1, wherein the
25 display control unit (60C) controls the display unit (52) so as to display
at least one of the graph (BG1, BG2) representing the distribution
39
quantity for each frequency or each period and the graph (BG1, BG2)
representing the distribution quantity for each frequency band that is a
predetermined range of the frequency or for each periodic band that is a
predetermined range of the period.
5
3. The analyzing device (60) according to claim 2, wherein the
display control unit (60C) controls the display unit (52) such that a
portion in which the distribution quantity exceeds a predetermined
threshold becomes visually distinguishable from a portion in which the
distribution quantity does not exceed the predetermined 10 threshold.
4. The analyzing device (60) according to claim 2, wherein the
display control unit (60C) controls the display unit (52) such that a
portion in which the distribution quantity exceeds a predetermined
15 threshold with respect to the distribution quantity in an adjacent
frequency band or an adjacent periodic band becomes visually
distinguishable from a portion in which the distribution quantity does
not exceed the predetermined threshold.
20 5. The analyzing device (60) according to any one of claims 2 to 4,
wherein the display control unit (60C) receives selection of the specific
region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx, By, Bz) made by
operation of an operator.
25 6. The analyzing device (60) according to claim 5, wherein the
display control unit (60C) controls the display unit (52) so as to display
40
a first result displaying area (R1) and a second result displaying area
(R2) as the result displaying area (R1, R2), display a first graph (BG1)
representing the distribution quantity for each frequency or each period
in the first result displaying area (R1), display a second graph (BG2)
representing the distribution quantity for each frequency 5 band or each
periodic band in the second result displaying area (R2), and having
received selection of one specific region (Bx) contained in the result
displaying area (R1, R2) in which one of the first graph (BG1) and the
second graph (BG2) is displayed, make visually distinguishable at least
10 one specific region (By,Bz) contained in the result displaying area (R1,
R2) in which the other of the first graph (BG1) and the second graph
(BG2) is displayed, the at least one specific region (By,Bz) being
associated with the one specific region (Bx).
15 7. The analyzing device (60) according to claim 5 or 6, wherein the
display control unit (60C) controls the display unit (52) such that, when
selection of the specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx,
By, Bz) has been received, information on a part to become a factor of
abnormality that occurs in the frequency or the period in the specific
20 range corresponding to the specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg,
Bh, Bi, Bx, By, Bz) becomes visually distinguishable.
8. The analyzing device (60) according to any one of claims 2 to 7,
wherein the graph (BG1, BG2) is a bar graph (BG1, BG2).
25
9. The analyzing device (60) according to claim 8, wherein the
41
display control unit (60C) controls the display unit (52) so as to display
a bar (B) of the bar graph (BG1, BG2) representing the distribution
quantity for each frequency or each period.
10. The analyzing device (60) according to claim 5 8 or 9, wherein the
display control unit (60C) controls the display unit (52) such that the bar
(B) having a distribution quantity exceeding a predetermined threshold
becomes visually distinguishable from a bar (B) having a distribution
quantity not exceeding the predetermined threshold.
10
11. The analyzing device (60) according to claim 8, wherein the
display control unit (60C) controls the display unit (52) so as to display
a bar (B) of the bar graph (BG1, BG2) representing the distribution
quantity for each frequency band or each periodic band.
15
12. The analyzing device (60) according to claim 11, wherein the
display control unit (60C) controls the display unit (52) such that the bar
(B) having a protruding amount relative to the distribution quantity in
an adjacent frequency band or an adjacent periodic band exceeding a
20 predetermined threshold becomes visually distinguishable from the bar
(B) having a protruding amount not exceeding the predetermined
threshold.
13. The analyzing device (60) according to any one of claims 1 to
25 12, wherein the display control unit (60C) controls the display unit (52)
such that the specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx,
42
By, Bz) is displayed in a display mode different from that of the other
region.
14. The analyzing device (60) according to claim 13, wherein the
display control unit (60C) controls the display unit 5 (52) such that the
specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx, By, Bz) is
displayed in a color different from that of the other region.
15. The analyzing device (60) according to any one of claims 1 to
10 14, wherein the specific region (Ba, Bb, Bc, Bd, Be, Bf, Bg, Bh, Bi, Bx,
By, Bz) includes at least a region corresponding to a frequency or a
period corresponding to a rotation period of a front top roller (20a) that
is calculated based on a radius of the front top roller (20a) and a rotation
speed of the front top roller (20a).
15
16. A spinning machine (1) comprising:
a drafting device (6) configured to draft a fiber bundle (F);
an air spinning device (7) configured to generate yarn (Y) by
twisting the fiber bundle (F) drafted by the drafting device (6);
20 a winding device (13) configured to wind the yarn (Y) generated
by the air spinning device (7) to form a package (P);
the analyzing device (60) according to any one of claims 1 to
15; and
a display unit (52), wherein
25 the display unit (52) displays a graph (BG1, BG2) in the result
displaying area (R1, R2), the graph (BG1, BG2) representing a relation
43
between the frequency or the period and the distribution quantity, the
relation being analyzed by the analyzing unit (60B).