A fiber bundle gathering device for a spinning machine

Abstract

Provided is a fiber bundle bunching device of a spinning machine that enables a coupling to be positioned at a position that facilitates the operation of a bolt when the fiber bundle bunching device is stopped. The fiber bundle bunching device (10) includes a rotational position detection section (30) that outputs rotational position information of an intermediate shaft (20) by detecting a detection surface (60c); a control device (40) that is input with the rotational position information output by the rotational position detection section (30) and controls the rotation of the intermediate shaft (20); and an operation section (41) that outputs a stop instruction to stop the rotation of the intermediate shaft (20) to the control device (40). If the control device (40) is input with the stop instruction from the operation section (41), the control device (40) controls the driving of the intermediate shaft (20) in such a manner that the coupling (70) is positioned within an operation range when the rotation of the intermediate shaft (20) is stopped, based on the rotational position information input from the rotational position detection section (30).

Description

TECHNICAL FIELD

[0001] The present application relates to a fiber bundle bunching device of a spinning machine. BACKGROUND

[0002] A fiber bundle bunching device of a spinning machine pre-bunches a fiber bundle drawn by a draft device before twisting the fiber bundle. By this bunching, reduction of fluff, yarn strength, and the like are improved. The fiber bundle bunching device is provided to a body of the spinning machine. Such a fiber bundle bunching device is provided with a rotation shaft of a delivery bottom roller that delivers the fiber bundle, and an intermediate shaft that rotates the rotation shaft, for example, as disclosed in Patent Literature 1. A drive gear is provided to the intermediate shaft, and a driven gear is provided to the rotation shaft. The drive gear and the driven gear are engaged. By this engagement, rotation force is transmitted from the intermediate shaft to the rotation shaft.

[0003] Generally, the body of the spinning machine is long, so it is difficult to drive the fiber bundle bunching device with one intermediate shaft. Therefore, the fiber bundle bunching device is provided with a plurality of intermediate shafts. The plurality of intermediate shafts are arranged in a plurality in an axial direction of the intermediate shaft, and the intermediate shafts adjacent in the axial direction are connected by a coupling. In this case, the coupling connects the intermediate shafts to each other by bolt fastening.

[0004] Patent Literature 1: European Patent Application Publication No. 1473388

[0005] In order to perform maintenance and the like of the fiber bundle bunching device, it is often necessary to release the connection of the intermediate shafts to each other by the coupling. In this case, after stopping the rotation of the intermediate shafts by stopping the drive of the fiber bundle bunching device, it is necessary to release the fastening by the bolt. In addition, after the maintenance and the like is finished, it is necessary to perform the fastening by the bolt again. However, depending on the rotation position of the coupling at the time of stopping the rotation of the intermediate shafts by stopping the drive of the fiber bundle bunching device, it is very difficult to perform the work of operating the bolt. SUMMARY

[0006] To solve the above problems, the fiber bundle bunching device of a spinning machine is characterized by comprising: a condensing unit having a delivery bottom roller provided to a rotating shaft and delivering a fiber bundle, a suction unit applying a suction to the fiber bundle, a porous apron rotating along the suction unit, a delivery top roller rotating together with the delivery bottom roller in contact with the porous apron, and bunching the fiber bundle being drafted; a plurality of intermediate shafts rotating the rotating shaft and arranged in an axial direction of the intermediate shafts; an intermediate shaft drive motor driving the intermediate shafts; and a coupling linking the intermediate shafts adjacent in the axial direction and rotating integrally with the intermediate shafts, the coupling linking the intermediate shafts by a coupling body fastened with bolts between end portions of the adjacent intermediate shafts, the fiber bundle bunching device further comprising: a detected portion provided to the intermediate shafts or the coupling and detecting a rotational position of the intermediate shafts; a rotational position detection unit outputting the rotational position information of the intermediate shafts by detecting the detected portion; a control device inputting the rotational position information outputted from the rotational position detection unit and controlling the intermediate shaft drive motor; and an operation portion outputting a stop command for stopping the driving of the intermediate shaft drive motor to the control device, the rotational position of the coupling and a range in which the operation of the bolts with respect to the coupling body from the front can be performed being set as an operation range of the coupling, the control device controlling the driving of the intermediate shaft drive motor in such a manner that the coupling is located within the operation range when the rotation of the intermediate shafts is stopped, based on the rotational position information inputted from the rotational position detection unit, if the stop command is inputted from the operation portion.

[0007] Thus, if the stop command is outputted from the operation portion, the rotation of the intermediate shaft drive motor is stopped and the rotation of the intermediate shafts is stopped, and the coupling is located within the operation range. Therefore, when the fiber bundle bunching device is stopped, the coupling can be located at a position at which the bolts are easily operated. As a result, the operation of the bolts with respect to the coupling body can be easily performed after the driving of the fiber bundle bunching device is stopped.

[0008] As for the fiber bundle bunching device of a spinning machine, the fiber bundle bunching device can further comprise a plurality of the couplings, and the rotational positions of all the couplings are aligned. Thus, if the stop command is outputted from the operation portion, the driving of the intermediate shaft drive motor is stopped and the rotation of the intermediate shafts is stopped, and all the couplings are located within the operation range. Therefore, the operation of the bolts with respect to the coupling body can be performed for any of the couplings.

[0009] In the fiber bundle collecting device of a spinning machine, the intermediate shaft at one end of the plurality of aligned intermediate shafts can be connected to a detection shaft, which can also rotate as an intermediate shaft, and the detection shaft can have a shorter length than the intermediate shafts. The detected portion can be provided on the detection shaft.

[0010] Thus, the fiber bundle collecting device can be made smaller than when another intermediate shaft having a detected portion is connected to the intermediate shaft at one end.

[0011] In the fiber bundle collecting device of a spinning machine, the intermediate shaft at one end of the plurality of aligned intermediate shafts can be connected to a detection shaft, which can also rotate as an intermediate shaft, and the detection shaft can have a shorter length than the intermediate shafts. The detected portion can be provided on the detection shaft.

[0012] Thus, in the case where the first maintenance mode is set executable by the mode setting portion, if the detection signal is output from the rotation position detection portion during driving at the detection speed, the intermediate shaft driving motor and the spindle driving motor are synchronously stopped by the synchronous control portion. Thus, the spindle is stopped following the stop of the intermediate shaft so that the coupling is located within the operation range. That is, based on the rotation position of the intermediate shaft, the intermediate shaft can be stopped so that the coupling is located within the operation range and the spindle can be stopped following the intermediate shaft. Moreover, each of the intermediate shaft driving motor and the spindle driving motor is stopped from the state of deceleration to the detection speed, so the rotation caused by inertia after the stop can be reduced. As a result, even if the intermediate shaft is stopped at a desired position, the difference in relative rotational speed with the spindle can be reduced, so the situation where the fiber bundle is cut can be suppressed.

[0013] As for the fiber bundle collecting device of the spinning machine, the above-mentioned spinning machine can also be provided with a spindle drive motor that drives a spindle in order to wind the above-mentioned fiber bundle collected by the above-mentioned fiber bundle collecting device, the above-mentioned control device can also be provided with: a synchronous control section that synchronously drives the above-mentioned intermediate shaft drive motor and the above-mentioned spindle drive motor; a probe speed setting section that sets a probe speed, the probe speed being the respective rotational speeds of the above-mentioned intermediate shaft drive motor and the above-mentioned spindle drive motor, and being the respective set rotational speeds of the above-mentioned intermediate shaft drive motor and the above-mentioned spindle drive motor, and being a rotational speed lower than the above-mentioned rotational speed at the time when the above-mentioned stop command is input from the above-mentioned operation section; and a mode setting section that sets a second maintenance mode in which the above-mentioned coupling is located within the above-mentioned operation range when the rotation of the above-mentioned intermediate shaft is stopped after the above-mentioned spinning machine that is stopped is started as executable, in the case where the above-mentioned second maintenance mode is set as executable by the above-mentioned mode setting section, the above-mentioned synchronous control section synchronously drives the above-mentioned intermediate shaft drive motor and the above-mentioned spindle drive motor at the above-mentioned probe speed at the time when an execution command of the above-mentioned second maintenance mode is input to the above-mentioned spinning machine that is stopped, and stops the respective drives of the above-mentioned intermediate shaft drive motor and the above-mentioned spindle drive motor at the time when the above-mentioned rotational position probe section probes the above-mentioned probed section.

[0014] Thus, in the case where the second maintenance mode is set as executable by the mode setting section, after the start of the spinning machine, if a probe signal is output from the rotational position probe section in the drive at the probe speed, the synchronous control section synchronously stops the intermediate shaft drive motor and the spindle drive motor. Then, the spindle stops following the stop of the intermediate shaft so that the coupling is located within the operation range. That is, based on the rotational position of the intermediate shaft, it is possible to stop the intermediate shaft so that the coupling is located within the operation range, and it is possible to stop the spindle following the intermediate shaft. Moreover, the respective intermediate shaft drive motor and spindle drive motor stop in the rotation at the probe speed, so it is possible to reduce the rotation by inertia after the stop. As a result, even if the intermediate shaft is stopped at a desired position, it is possible to reduce the difference in the relative rotational speed of the spindle, so it is possible to suppress the case where the fiber bundle is cut. Moreover, even if maintenance of the fiber bundle collecting device is intended at the time of the stop of the spinning machine, it is possible to locate the intermediate shaft at a position where maintenance is easy by executing the second maintenance mode.

[0015] As for the fiber bundle collecting device of the spinning machine, the above-mentioned mode setting section can also set a normal stop mode in which the above-mentioned intermediate shaft drive motor is stopped following the above-mentioned spindle drive motor so that the above-mentioned spindle drive motor and the above-mentioned intermediate shaft drive motor are stopped as executable.

[0016] Thus, since it is possible to select the method of stopping the spinning machine, it is possible to satisfy the demand of the operator.

[0017] According to the present application, the coupling is positioned at a position where the bolt is easily operated when the fiber bundle bunching device is stopped. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front view schematically showing a spinning machine and a fiber bundle bunching device of the first embodiment.

[0019] Figure 2 is a sectional view showing a condensing unit.

[0020] Figure 3 is a perspective view showing a coupling.

[0021] Figure 4 is a sectional view of the coupling showing an operation range.

[0022] Figure 5 is a sectional view of the coupling showing an operation range.

[0023] Figure 6 is a perspective view showing a mounting jig.

[0024] Figure 7 is a front view showing a state where a jig main body is mounted to an intermediate shaft.

[0025] Figure 8 is a side view showing a state where a jig main body is mounted to an intermediate shaft.

[0026] Figure 9 is a side view showing a mounting jig.

[0027] Figure 10 is a partial perspective view showing a detected surface of a detection shaft.

[0028] Figure 11 is a configuration view schematically showing a spinning machine of the second embodiment.

[0029] Figure 12 is a view schematically showing an input section.

[0030] Figure 13 is a view showing a normal stop mode.

[0031] Figure 14 is a view showing a first maintenance mode.

[0032] Figure 15 is a view showing a second maintenance mode.

[0033] Figure 16 is a partial perspective view showing a detected surface of a coupling.

[0034] EXPLANATION OF REFERENCE NUMERALS

[0035] F…fiber bundle, 10…fiber bundle bundling device, 11…bundling unit, 12…rotation shaft, 13…delivery bottom roller, 14…suction portion, 15…breathable apron, 16…delivery top roller, 20…intermediate shaft, 20b…first joint end, 20c…second joint end, 30…rotation position detection portion, 40…control device, 41…operation portion, 60…detection shaft, 60c, 71c…detected surface as a detected portion, 70…coupler, 73…coupler main body, 80…bolt, 103…intermediate shaft drive motor, 110…spindle, 112…spindle drive motor, 401…synchronous control portion, 402…detection speed setting portion, IM…operation screen as a mode setting portion. DETAILED DESCRIPTION

[0036] (First Embodiment)

[0037] Hereinafter, a first embodiment of a fiber bundle bundling device of a spinning machine will be described based on Figures 1-10

[0038] <Overall of Fiber Bundle Bundling Device of Spinning Machine>

[0039] The fiber bundle bundling device of the spinning machine is provided on the downstream side of the drafting device. In the following description, the "fiber bundle bundling device of the spinning machine" will be simply referred to as "fiber bundle bundling device". The fiber bundle bundling device is a device that bundles a fiber bundle to be drafted in advance before twisting. In addition, the fiber bundle bundling device is a device that performs processing such as reduction of fluff of the fiber bundle after bundling.

[0040] <Spinning Machine>

[0041] As shown in Figure 1 , the spinning machine 100 is provided with the fiber bundle bundling device 10, an outer head 101, a gear head 102, and a plurality of support plates 50. The outer head 101 and the gear head 102 are provided in a body not shown. The intermediate shaft drive motor 103 is built in the gear head 102. The intermediate shaft drive motor 103 drives the fiber bundle bundling device 10. In addition, the drafting device is provided on the inside of the paper vertical direction of Figure 1 . The fiber bundle F is delivered toward the lower side of the near front side of the paper vertical direction of Figure 1 after being processed by the fiber bundle bundling device 10. In addition, Figure 1 the near front side of the paper vertical direction of is the front side of the fiber bundle bundling device 10. Therefore, the fiber bundle F processed by the fiber bundle bundling device 10 is delivered toward the front of the fiber bundle bundling device 10. The case where the fiber bundle bundling device 10 is observed from the front is observed as the front. In addition, the direction in which the outer head 101 and the gear head 102 face each other is set as the long side direction X of the spinning machine 100.

[0042] <Support Plate>

[0043] The support plate 50 is fixed to a roller bracket (not shown). Multiple support plates 50 are arranged between the outer end 101 and the gear end 102.

[0044] exist Figure 8 The support plate 50 is schematically shown in the diagram. (As shown) Figure 8 As shown, a shaft groove 53 is formed in the support plate 50. In the side view of the support plate 50 viewed in the long side direction X of the spinning machine 100, the shaft groove 53 is arc-shaped and opens forward and obliquely upward.

[0045] <Fiber Bundle Bundling Device>

[0046] like Figure 1 As shown, the fiber bundle gathering device 10 is disposed between the outer end 101 and the gear end 102. The fiber bundle gathering device 10 includes a plurality of cotton gathering units 11, a plurality of intermediate shafts 20, and a coupling 70 connecting adjacent intermediate shafts 20. In addition, the fiber bundle gathering device 10 includes a rotational position detection unit 30, a control device 40, an operation unit 41, and a detection surface 60c, which is the detection part.

[0047] <Cotton Collection Unit>

[0048] The cotton collection unit 11 gathers the stretched fiber bundles F together.

[0049] like Figure 1 as well as Figure 2 As shown, the cotton collecting unit 11 includes a rotating shaft 12, a bottom conveying roller 13, a suction section 14, a breathable leather ring 15, and an upper conveying roller 16. The bottom conveying roller 13 is mounted on the rotating shaft 12 and rotates integrally with the rotating shaft 12. A driven gear 18 is provided on the rotating shaft 12.

[0050] The suction section 14 has multiple suction holes (not shown). The suction section 14 applies suction to the conveyed fiber bundle F via a breathable apron 15. The breathable apron 15 is formed of an endless fabric that ensures air permeability. The breathable apron 15 is wound around the conveyor bottom roller 13, the suction section 14, and the guide section 19. The breathable apron 15 rotates along the suction section 14. The upper conveyor roller 16 contacts the conveyor bottom roller 13 through the breathable apron 15 and rotates together with the conveyor bottom roller 13.

[0051] like Figure 1As shown, the fiber bundle bundling device 10 uses eight spindles' cotton-gathering units 11 as a unit. The fiber bundle bundling device 10 has multiple cotton-gathering units 11 between its outer end 101 and gear end 102. Each cotton-gathering unit 11 is positioned between support plates 50. Two support plates 50 are positioned between adjacent cotton-gathering units 11 along the longitudinal direction X. A rotating shaft bearing 51 and a shaft bearing 52 are positioned between each support plate 50. The rotating shaft 12 is supported by the support plates 50 via the rotating shaft bearing 51, enabling it to rotate.

[0052] <Intermediate Axis>

[0053] Intermediate shaft 20 rotates rotating shaft 12. Multiple intermediate shafts 20 are arranged axially. The intermediate shafts 20 are rotatably supported on support plate 50 via shaft bearings 52. Multiple intermediate shafts 20 are arranged along the long side X direction of spinning machine 100. Each intermediate shaft 20 includes a shaft body 20a, a first connecting end 20b, and a second connecting end 20c. The first connecting end 20b is located at a first axial end of the shaft body 20a. The second connecting end 20c is located at a second axial end of the shaft body 20a. The axial length of the first connecting end 20b is shorter than the axial length of the second connecting end 20c. The diameters of both the first connecting end 20b and the second connecting end 20c are smaller than the diameter of the shaft body 20a.

[0054] like Figure 3 As shown, the first connecting end 20b faces the second connecting end 20c of the adjacent intermediate shaft 20. The second connecting end 20c is inserted between a unit support plate 50 and is supported by the support plate 50 via a shaft bearing 52 to be rotatable.

[0055] like Figure 1 As shown, the intermediate shaft 20 includes a drive gear 21. The drive gear 21 is positioned axially on the intermediate shaft 20 near the first connecting end 20b. Furthermore, the driven gear 18 and the drive gear 21 may also be positioned axially on the intermediate shaft 20 near the second connecting end 20c, or they may be positioned at the center of the axial direction. The drive gear 21 meshes with the driven gear 18 of the rotating shaft 12. If the drive gear 21 rotates together with the intermediate shaft 20, the driven gear 18 of the rotating shaft 12 rotates. Along with the rotation of the driven gear 18, the conveyor roller 13 rotates together with the rotating shaft 12. As the conveyor roller 13 rotates, the breathable apron 15 rotates and conveys the fiber bundle F. Therefore, the conveyor roller 13 conveys the fiber bundle F.

[0056] The fiber bundle F is held by the bottom conveyor roller 13 and the top conveyor roller 16, which rotate according to the rotation of the rotating shaft 12 driven by the intermediate shaft 20, and is drawn by the suction part 14 through the breathable ring 15 while being conveyed.

[0057] <Inspection Shaft>

[0058] The detection shaft 60, which also serves as an intermediate shaft, is connected to one end of a plurality of arranged intermediate shafts 20. Specifically, the detection shaft 60 is connected to the intermediate shaft 20 closest to the outer end 101. This detection shaft 60 rotates as an intermediate shaft. The shaft length of the detection shaft 60 is shorter than the shaft length of the intermediate shaft 20.

[0059] The first end 60a of the detection shaft 60 is connected to the second connecting end 20c of the intermediate shaft 20 via a coupling 70. The second end 60b of the detection shaft 60 protrudes outward from the outer end 101 and is supported by a bearing 105 to allow rotation. A probed surface 60c, serving as the probed part, is provided at the second end 60b of the detection shaft 60. Therefore, the intermediate shaft 20 has a probed surface 60c, which serves as the probed part. This probed surface 60c is provided for detecting the rotational position of the intermediate shaft 20. Figure 10 As shown, the surface to be detected 60c is a plane that extends axially and radially along the detection shaft 60.

[0060] <Coupling>

[0061] like Figure 3 , Figure 4 as well as Figure 5 As shown, the coupling 70 includes a coupling body 73 and a plurality of bolts 80. The coupling body 73 includes a first connecting member 71 and a second connecting member 72. The axial direction of the coupling 70 is set as the axial direction of the first connecting member 71 and the second connecting member 72, and the radial direction of the coupling 70 is set as the radial direction of the first connecting member 71 and the second connecting member 72. The first connecting member 71 and the second connecting member 72 are semi-cylindrical. Each of the first connecting member 71 and the second connecting member 72 is provided with a receiving recess 79. The receiving recess 79 is a recess for receiving the first connecting end 20b and the second connecting end 20c. Each of the first connecting member 71 and the second connecting member 72 has a mating surface 74 that radially clamps the receiving recess 79.

[0062] The first coupling member 71 is formed with a bolt head receiving portion 75 and a through-hole 76 that communicates with the bolt head receiving portion 75. The bolt head receiving portion 75 opens in a circular arc-shaped surface in the outer surface of the first coupling member 71. The through-hole 76 opens in the butt surface 74 of the first coupling member 71. The bolt head receiving portion 75 and the through-hole 76 are aligned in the axial direction of the first coupling member 71 along the receiving recess 79. The bolt head receiving portion 75 and the through-hole 76 are disposed on both sides of the receiving recess 79 in a manner of sandwiching the receiving recess 79 in the radial direction.

[0063] The second coupling member 72 is formed with an internal thread 77. The internal thread 77 communicates a circular arc-shaped surface in the outer surface of the second coupling member 72 with the butt surface 74. The internal thread 77 is aligned in the axial direction of the second coupling member 72 along the receiving recess 79. The internal thread 77 is disposed on both sides of the receiving recess 79 in a manner of sandwiching the receiving recess 79 in the radial direction.

[0064] The bolt 80 has a bolt head 80a and a bolt shaft 80b. An operation hole 80c is formed in the bolt head 80a. The operation hole 80c is a hexagonal hole. The bolt 80 is operated by inserting an operation tool 90 into the operation hole 80c. The operation tool 90 is a long hexagonal rod.

[0065] The coupling 70 couples the intermediate shafts 20 adjacent in the axial direction of the intermediate shaft 20 and rotates integrally with the intermediate shaft 20. The bolt shaft 80b is inserted into the through-hole 76 through the bolt head receiving portion 75 of the first coupling member 71 and is screwed into the internal thread 77 of the second coupling member 72. By screwing the bolt shaft 80b into the internal thread 77, the first coupling member 71 and the second coupling member 72 are brought close to each other and the coupling body 73 is fastened. The coupling 70 is formed by the fastening of the coupling body 73 by the bolt 80.

[0066] The coupling body 73 is erected on the first coupling end portion 20b and the second coupling end portion 20c adjacent in the long direction X. A part of the bolt head 80a is received in the bolt head receiving portion 75. The first coupling end portion 20b and the second coupling end portion 20c are sandwiched by the receiving recess 79 of the first coupling member 71 and the receiving recess 79 of the second coupling member 72. Thus, the intermediate shafts 20 are coupled to each other. Therefore, the coupling 70 couples the intermediate shafts 20 adjacent to each other by fastening the coupling body 73 erected on the end portions of the intermediate shafts 20 adjacent to each other with the bolt 80. All of the intermediate shafts 20 and the detection shaft 60 provided in the fiber bundle collecting device 10 are coupled by the coupling 70. Therefore, all of the intermediate shafts 20 and the detection shaft 60 rotate integrally.

[0067] Regarding the intermediate shaft 20, the position of a point on the circumference of the intermediate shaft 20, i.e., its rotational position, changes in the direction of rotation if the intermediate shaft 20 rotates. Similarly, the position of a point on the circumference of the coupling 70, i.e., its rotational position, changes in the direction of rotation when the intermediate shaft 20 rotates. Furthermore, all couplings 70 connect the intermediate shaft 20 by aligning the positions of the bolt head receiving portions 75 in the direction of rotation of the intermediate shaft 20. In other words, the rotational positions of all the multiple couplings 70 are aligned.

[0068] like Figure 1 As shown, all couplings 70 are aligned with the probed surface 60c of the detection shaft 60 as a reference, ensuring that the bolt head receiving portion 75 in the rotational direction of the intermediate shaft 20 is in the same direction, i.e., in the rotational position. Specifically, the probed surface 60c faces the same direction as the bolt head receiving portion 75. Therefore, when the detection shaft 60 is in its rotational position, with the probed surface 60c facing forward, the bolt head receiving portion 75 of each coupling 70 faces forward.

[0069] Therefore, in the main view of the fiber bundle assembly 10, if the operator can visually confirm the bolt head storage portion 75 of one coupling 70, the operator can also visually confirm the bolt head storage portions 75 of all the other couplings 70.

[0070] To connect the intermediate shafts 20 to each other via the coupling 70, after the bolt shaft portion 80b passes through the bolt head receiving portion 75 and is inserted into the through hole 76, the operating tool 90 is inserted into the operating hole 80c of the bolt head 80a. Then, the operating tool 90 is used to screw the bolt shaft portion 80b into the internal thread 77. Furthermore, to disconnect the intermediate shafts 20 from each other via the coupling 70, the operating tool 90 is inserted into the operating hole 80c of the bolt head 80a, and then the operating tool 90 is used to pull the bolt shaft portion 80b out of the internal thread 77.

[0071] If the bolt head storage portion 75 is not positioned within the specified operating range, the operator cannot operate the bolt 80 from the front side of the fiber bundle bundling device 10 using the operating tool 90. For example, this is when the bolt head storage portion 75 is hidden by the rotating shaft 12. Therefore, as... Figure 4 As shown, one end of the operating range is below the rotating shaft 12, facing forward so that the bolt head receiving portion 75 is not hidden by the rotating shaft 12. Here, "facing forward" is not limited to the horizontal direction, but includes a position slightly upwards from the horizontal direction within the range where the operating tool 90 does not interfere with the rotating shaft 12. Figure 5 As shown, the other end of the operating range is located at the position where the bolt head receiving portion 75 faces forward and opens diagonally downward. Furthermore... Figure 4 The positions shown and Figure 5The positions shown are offset by 90 degrees. The other end of the operating range can be appropriately set as long as the operating tool 90 does not interfere with structures located below the operating tool 90, such as suction cleaning devices. The operating range is the range from the front of the fiber bundle bundling device 10 relative to the coupling body 73 where the bolt 80 can be operated.

[0072] <Installation Fixture>

[0073] like Figure 7 As shown, a mounting clamp 83 is used when connecting the intermediate shafts 20 to each other via the coupling 70. The mounting clamp 83 is used to align the intermediate shafts 20 in the circumferential direction and install the coupling 70. The mounting clamp 83 is used to mount the intermediate shafts 20. The mounting clamp 83 includes a clamp body 84, a first protrusion 85, and a second protrusion 86. The clamp body 84 has a first end face 84a and a second end face 84b. The first end face 84a and the second end face 84b are axial end faces of the clamp body 84.

[0074] like Figure 6 As shown, the clamp body 84 has a mounting recess 84c extending axially along the clamp body 84. The mounting recess 84c is a recess extending axially along the clamp body 84. The mounting recess 84c opens at both ends axially of the clamp body 84. Viewed axially from the clamp body 84, the first end face 84a and the second end face 84b are each approximately C-shaped. The clamp body 84 has an opening edge 84d extending axially across the mounting recess 84c. The pair of opening edges 84d are parallel. The direction in which the pair of opening edges 84d face each other across the mounting recess 84c is defined as the width direction of the clamp body 84. In addition, in the clamp body 84, the direction from one of the pair of opening edges 84d toward the other along the first end face 84a and the second end face 84b is defined as the circumferential direction. The position from which the pair of opening edges 84d move equidistantly in the circumferential direction is defined as the intermediate position P.

[0075] A first protrusion 85 is provided on the first end face 84a of the clamp body 84. The first protrusion 85 is positioned on the first end face 84a at an opening edge 84d closer to the center position P. The first protrusion 85 is cylindrical and protrudes axially from the first end face 84a. A mounting recess 84c is installed above the shaft body 20a, and the first protrusion 85 contacts the shaft groove 53. Thus, the clamp 83 can be positioned with the mounting recess 84c opening downwards, and the relative rotation of the clamp 83 relative to the intermediate shaft 20 is restricted.

[0076] The second protrusion 86 is located at the middle position P of the second end face 84b of the fixture body 84. The second protrusion 86 is plate-shaped. The thickness direction of the second protrusion 86 is the same as the width direction of the fixture body 84.

[0077] <Method of using the mounting jig>

[0078] As shown in Figure 7 and Figure 8 , the mounting recess 84c is installed from above the second joint end portion 20c of one of the adjacent intermediate shafts 20. At this time, the first joint end portion 20b of the other intermediate shaft 20 faces the second joint end portion 20c. Then, the mounting jig 83 is installed to the second joint end portion 20c so that the first protrusion 85 contacts the face that forms the shaft groove 53. Thus, the mounting jig 83 is positioned so that the mounting recess 84c opens downward. At the same time, the relative rotation of the mounting jig 83 with respect to the intermediate shaft 20 is restricted. At this time, the second protrusion 86 is positioned on top of the second end face 84b, and the plate thickness direction of the second protrusion 86 becomes the front-rear direction of the spinning machine 100.

[0079] Next, as shown in Figure 9 , the first joint member 71 is arranged in front of the second protrusion 86, and the second joint member 72 is arranged behind the second protrusion 86, and the second protrusion 86 is sandwiched by the first joint member 71 and the second joint member 72. At this time, the second joint end portion 20c and the first joint end portion 20b are sandwiched by the first joint member 71 and the second joint member 72. Also, if the abutting face 74 of the first joint member 71 is brought into contact with the front face of the second protrusion 86, the first joint member 71 can be positioned so that the bolt head receiving portion 75 of the first joint member 71 faces forward. In addition, if the abutting face 74 of the second joint member 72 is brought into contact with the rear face of the second protrusion 86, the second joint member 72 can be positioned so that the internal thread 77 of the second joint member 72 faces rearward.

[0080] In addition, the axial one end face of the first joint member 71 and the second joint member 72 is brought into contact with the second end face 84b. Thus, the receiving recess 79 of the first joint member 71 and the receiving recess 79 of the second joint member 72 face each other, and the abutting face 74 of the first joint member 71 and the abutting face 74 of the second joint member 72 face each other. Therefore, the through hole 76 of the first joint member 71 and the internal thread 77 of the second joint member 72 also face each other.

[0081] Also, if the bolt shaft portion 80b that is inserted into the through hole 76 passes through the bolt head receiving portion 75 and is screwed into the internal thread 77, the first joint member 71 and the second joint member 72 can be joined by the bolt 80. As a result, the first joint end portion 20b and the second joint end portion 20c that are received in the receiving recess 79 can be sandwiched by the coupling body 73, and the intermediate shafts 20 can be joined to each other by the coupling 70. By repeating this operation, the rotational positions of all of the couplings 70 can be made uniform, and the intermediate shafts 20 can be joined to each other.

[0082] <Rotating Position Detection Unit>

[0083] like Figure 1 As shown, the rotational position detection unit 30 is positioned close to the outer end 101. The rotational position detection unit 30 faces the second end 60b of the detection shaft 60. The rotational position detection unit 30 is, for example, a proximity sensor. The rotational position detection unit 30 detects the proximity of the detection surface 60c of the detection shaft 60 without contact. The rotational position detection unit 30 outputs a detection signal each time it detects the detection surface 60c. The rotational position detection unit 30 outputs a detection signal at one-pulse intervals when the detection shaft 60 rotates one revolution. If the rotational speed of the intermediate shaft 20, i.e., the rotational speed of the intermediate shaft drive motor 103, increases, the output interval of the detection signal from the rotational position detection unit 30 becomes shorter; conversely, if the rotational speed of the intermediate shaft 20, i.e., the rotational speed of the intermediate shaft drive motor 103, decreases, the output interval of the detection signal from the rotational position detection unit 30 becomes longer. Therefore, the detection signal output by the rotational position detection unit 30 is the rotational position information of the intermediate shaft 20. Therefore, the rotation position detection unit 30 outputs the rotation position information of the intermediate shaft 20 by detecting the surface 60c being detected.

[0084] As described above, in the rotational position of the detection shaft 60, when the probed surface 60c faces forward, the bolt head receiving portion 75 of each coupling 70 faces forward. Therefore, at the moment the rotational position detection unit 30 outputs a detection signal, the bolt head receiving portion 75 of each coupling 70 is in a forward-facing position. That is, the rotational position of each coupling 70 is located in a position where the bolt head receiving portion 75 faces forward and is within the operating range.

[0085] <Control Device>

[0086] The control device 40 has a processor, not shown, and a storage section. The processor can be, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and a DSP (Digital Signal Processor). The storage section includes a RAM (Random Access Memory) and a ROM (Read Only Memory). The storage section stores program codes or instructions configured to cause the processor to perform processing. The storage section, that is, a computer-readable medium includes all available media accessible by a general or specific computer. The control device 40 can also be configured by a hardware circuit such as an ASIC (Application Specific Integrated Circuit) and an FPGA (Field Programmable Gate Array). The control device 40 as a processing circuit can include one or more processors, ASICs, FPGAs, or combinations thereof that act in accordance with a computer program.

[0087] The control device 40 is input with the detection signal output from the rotation position detection section 30 and controls driving of the intermediate shaft drive motor 103. The control device 40 outputs a drive signal to the intermediate shaft drive motor 103 and drives the intermediate shaft drive motor 103. By driving of the intermediate shaft drive motor 103, the intermediate shaft 20 rotates and drives the fiber bundle collecting device 10.

[0088] The control device 40 is connected with an operation section 41. The operation section 41 can be, for example, a dial, a physical button, and a touch panel. In the present embodiment, the operation section 41 is a physical button. The operation section 41 is operated to temporarily stop or completely stop driving of the fiber bundle collecting device 10 and stop driving of the intermediate shaft 20. The operation section 41 outputs a stop instruction to stop driving of the intermediate shaft 20 to the control device 40. The operation section 41 can be provided at the gear end 102, the outer end 101, or at an upper control device of the spinning machine 100 as long as it can be operated to stop driving of the intermediate shaft 20.

[0089] If the fiber bundle collecting device 10 is driven, the detection signal from the rotation position detection section 30 is periodically input to the control device 40. The control device 40 performs speed control of the intermediate shaft drive motor 103 based on the detection signal.

[0090] If the stop instruction is output from the operation section 41 and the stop instruction is input to the control device 40, the control device 40 switches the control of the intermediate shaft drive motor 103 from the rotation speed control to the position control. In detail, if the control device 40 is input the stop instruction from the operation section 41, the control device 40 controls the driving of the intermediate shaft 20 based on the detection signal input from the rotation position detection section 30 so that the coupling 70 is positioned within the operation range when the rotation of the intermediate shaft 20 is stopped. Specifically, if the control device 40 is input the stop instruction, the control device 40 detects the rotation position of the intermediate shaft 20 based on the detection signal from the rotation position detection section 30 and performs the position control so that the intermediate shaft 20 is stopped at a prescribed rotation position. In more detail, the control device 40 controls the driving of the intermediate shaft drive motor 103 in such a manner that the coupling 70 is stopped within the operation range.

[0091] In the present embodiment, as shown in Figure 4 and Figure 5 the control device 40 controls the driving of the intermediate shaft drive motor 103 so that the bolt head receiving portion 75 is positioned between the position at which the bolt head receiving portion 75 opens forward and the position at which the bolt head receiving portion 75 opens obliquely downward, that is, between one end and the other end of the operation range, in the lower side of the rotation shaft 12.

[0092] [Effects of the First Embodiment]

[0093] For example, in order to maintain the fiber bundle bunching device 10, the replacement of the drive gear 21, the shaft bearing 52, the intermediate shaft 20, and the like are sometimes performed after the fiber bundle bunching device 10 is temporarily stopped.

[0094] The operator operates the operation section 41. If the control device 40 is input the stop instruction from the operation section 41, the control device 40 switches the control of the intermediate shaft drive motor 103 from the rotation speed control to the position control. The control device 40 performs the position control based on the detection signal from the rotation position detection section 30 so that the intermediate shaft 20 is stopped at a prescribed rotation position. Then, if the rotation of the intermediate shaft 20 is stopped, the bolt head receiving portion 75 of all the couplings 70 is positioned within the operation range. Therefore, the operator can operate the bolt head 80a received in the bolt head receiving portion 75 from the front of the fiber bundle bunching device 10 with the operation tool 90. Then, the bolt 80 is operated by the operation tool 90, the bolt 80 is pulled out from the internal thread 77, and the bolt 80 is pulled out from the coupling main body 73 through the insertion hole 76 and the bolt head receiving portion 75. As a result, the coupling main body 73 can be disassembled into the first link member 71 and the second link member 72, so that the linking of the intermediate shafts 20 to each other by the couplings 70 can be released. The same processing is performed with respect to the other couplings 70. Thus, the intermediate shaft 20 can be moved in the long direction X, and the replacement of the drive gear 21, the shaft bearing 52, the intermediate shaft 20, and the like can be performed.

[0095] After the maintenance is ended, the moved intermediate shafts 20 are returned to the original positions, and the intermediate shafts 20 are again coupled to each other by the couplings 70. The intermediate shafts 20 are stopped in a manner that the detection surfaces 60c face the front, and therefore the bolt head receiving portions 75 of the couplings 70 other than the coupling 70 that is removed face the front.

[0096] Further, the couplings 70 are attached to the intermediate shafts 20 using the attachment jigs 83, and the intermediate shafts 20 are coupled to each other. At this time, the operator can operate the operation tool 90 from the front of the fiber bundle gathering device 10. Further, the bolt 80 is operated by the operation tool 90, the bolt shaft portion 80b is passed through the bolt head receiving portion 75 and inserted into the insertion hole 76, and is screwed into the internal thread 77. As a result, the bolt 80 can be screwed into the coupling body 73, and the intermediate shafts 20 can be coupled to each other by the coupling 70.

[0097] According to the first embodiment described above, the following effects can be obtained. (1-1) If the operation portion 41 is operated and a stop command is input to the control device 40, the control device 40 controls the driving of the intermediate shaft driving motor 103, and stops the driving of the fiber bundle gathering device 10. Then, if the rotation of the intermediate shaft 20 is stopped, the coupling 70 is located within the operation range. Therefore, at the time when the driving of the fiber bundle gathering device 10 is stopped, the coupling 70 can be located at a position where the bolt 80 is easily operated. As a result, after the driving of the fiber bundle gathering device 10 is stopped, the operation of the bolt 80 with respect to the coupling body 73 can be easily performed.

[0098] (1-2) The fiber bundle gathering device 10 is provided with a plurality of couplings 70. The rotational positions of all the plurality of couplings 70 are aligned. Therefore, if a stop command is output from the operation portion 41 and the rotation of the intermediate shaft 20 is stopped, all the couplings 70 are located within the operation range. Therefore, the operation of the bolt 80 with respect to the coupling body 73 can be performed regardless of which coupling 70.

[0099] (1-3) The detection surface 60c is provided to the detection shaft 60. For example, when compared to the case where the other intermediate shaft 20 provided with the detection surface is coupled to the intermediate shaft 20 closest to the outer end 101, the fiber bundle gathering device 10 can be downsized in the long direction X.

[0100] (1-4) If the fiber bundle assembly 10 is stopped by the control device 40, the coupling 70 can be positioned within its operating range. Therefore, when the fiber bundle assembly 10 is stopped, the bolt 80 can be operated relative to the coupling body 73. Thus, except for maintenance of the fiber bundle assembly 10, the bolt 80 can be operated even when the operation of the fiber bundle assembly 10 is stopped. Therefore, during the period when the operation of the fiber bundle assembly 10 is stopped, maintenance can be performed if necessary without rotating the intermediate shaft 20 again.

[0101] (1-5) By using the mounting fixture 83, it is easy to perform the operation of aligning the rotational position of the coupling 70.

[0102] (Second Implementation)

[0103] Next, based on Figures 11-14 A second embodiment that embodies the fiber bundle bundling device of a spinning machine will be described below. Furthermore, in this second embodiment, detailed descriptions of parts identical to those in the first embodiment are omitted.

[0104] like Figure 11 As shown, the spinning machine 100 includes a spindle drive unit 111, a lifting unit 120, and a drafting unit 130. The spindle drive unit 111 drives the spindle 110 to wind the fiber bundle F bundled by the fiber bundle bundling device 10. The spindle drive unit 111 includes a spindle drive motor 112, a drive pulley 113, a driven pulley 114, and a meridional belt 115 wound on the two pulleys 113 and 114. The spindle 110 is driven by the spindle drive motor 112. The spindle drive motor 112 is a variable speed motor driven by an inverter 116. The control unit 40 controls the inverter 116.

[0105] The lifting unit 120 raises and lowers the spindle 110. The lifting unit 120 includes a main shaft 121, a ring rail 122, an angle iron (not shown) with a guide hook (snail hook) 123, a lifting rod 124, a nut body 125, a lifting motor 126, and a driver 127. The main shaft 121 is configured to rotate along the spindle row. A helical gear 121a is formed on the main shaft 121. The lifting motor 126 is connected to the main shaft 121 via a gear mechanism (not shown). The lifting rod 124 supports the ring rail 122 with a ring 122a. A screw portion 124a is formed at the lower part of the lifting rod 124. The nut body 125 screws into the screw portion 124a and meshes with the helical gear 121a.

[0106] If the lifting motor 126 is rotated in both directions to rotate the total shaft 121, the annular rail 122 is raised and lowered by the screw gear 121a, the nut body 125, and the screw rod portion 124a. The driver 127 drives the lifting motor 126. The control device 40 controls the driver 127.

[0107] In the operation of the spinning machine 100, the control device 40 controls the inverter 116 and the driver 127, and controls the driving of the spindle drive motor 112 and the lifting motor 126. The annular rail 122 is repeatedly raised and lowered by the driving of the lifting motor 126 to drive the lifting unit 120, and the spindle 110 is rotated by the driving of the spindle drive device 111 by the driving of the spindle drive motor 112. Thus, the fiber bundle F by the fiber bundle collecting device 10 is wound on the bobbin B supported by the spindle 110.

[0108] The drafting device 130 drafts the fiber bundle F. The drafting device 130 includes a front roller 131, a first drafting motor 132, an intermediate roller 133, a second drafting motor 134, and a back lower roller 135. The back lower roller 135 is linked to the intermediate roller 133 via a gear train 136. The intermediate roller 133 includes a apron 133a. A first driver 132a drives the first drafting motor 132. A second driver 134a drives the second drafting motor 134. The control device 40 controls the first driver 132a and the second driver 134a. The first drafting motor 132 and the second drafting motor 134 drive the drafting device 130. The drafting device 130 is driven by the driving of the first drafting motor 132 and the second drafting motor 134.

[0109] The fiber bundle collecting device 10 is disposed on the front side of the drafting device 130. The fiber bundle collecting device 10 collects the fiber bundle F drawn by the drafting device 130. The intermediate shaft drive motor 103 drives the fiber bundle collecting device 10. The intermediate shaft drive motor is driven by the intermediate shaft drive motor driver 128. The control device 40 controls the intermediate shaft drive motor driver 128.

[0110] The spinning machine 100 includes an input portion 44. As shown in FIG. 1, a physical button type operation portion 41 and a start button 46 are disposed in the input portion 44. The operation portion 41 is operated to temporarily stop or completely stop the operation of the spinning machine 100. The start button 46 is operated to start the spinning machine 100 after the stop. Figure 12

[0111] ​The input section 44 is provided with a display section 45. The display section 45 displays an operation screen IM. The operation screen IM functions as a mode setting section. The operation screen IM is a screen for the operator to perform an operation of selecting the first maintenance mode Ml and the second maintenance mode M2 as the maintenance mode of the spinning machine 100. The operation screen IM displays an ON button Bl for selecting the first maintenance mode Ml and an OFF button B2 for setting the first maintenance mode Ml to be non-selected.

[0112] In a case where the first maintenance mode Ml is selected by the operation of the ON button Bl, the control device 40 sets the first maintenance mode Ml to be executable. In a case where the first maintenance mode Ml is not selected by the operation of the OFF button B2, the control device 40 sets the normal stop mode M3 to be executable. Thus, the operation screen IM as the mode setting section selects and sets the first maintenance mode Ml or the normal stop mode M3 to be executable.

[0113] In addition, the operation screen IM displays an ON button B3 for selecting the second maintenance mode M2 and an OFF button B4 for setting the second maintenance mode M2 to be non-selected. In a case where the second maintenance mode M2 is selected by the operation of the ON button B3, the control device 40 sets the second maintenance mode M2 to be executable. Thus, the operation screen IM as the mode setting section selects and sets the second maintenance mode M2 to be executable. In a case where the OFF button B4 is operated, the control device 40 sets the second maintenance mode M2 to be OFF. Thus, the operation screen IM as the mode setting section selects and sets the second maintenance mode M2 to be executable.

[0114] The input section 44 is provided with a parameter input section 47. The parameter input section 47 is a section for the operator to perform an input of a spinning parameter of the spinning machine 100. The parameter input section 47 is a dial type. In addition, the parameter input section 47 can be displayed on the operation screen IM, and can be a physical button other than the dial type.

[0115] As Figure 11As shown, during the operation of the spinning machine 100, the control device 40 controls the spindle drive motor 112 via the inverter 116 and controls each driver 127, 128, 132a, 134a to control the driving of each motor 103, 126, 132, 134. During the operation of the spinning machine 100, the control device 40 controls the fiber bundle collecting device 10, the spindle drive device 111, the lifting unit 120, and the draft device 130 in synchronization according to the spinning parameters input by the parameter input section 47. Specifically, the control device 40 controls the motors 103, 112, 126, 132, 134 in synchronization according to the spinning parameters input by the parameter input section 47. Thus, the spinning machine 100 is provided with the spindle drive motor 112 that drives the spindle 110 for taking up the fiber bundle F collected by the fiber bundle collecting device 10. In the present embodiment, the spinning machine 100 is provided with the first draft motor 132 and the second draft motor 134 that drive the draft device 130 that drafts the fiber bundle F, the above-described spindle drive motor 112, and the lifting motor 126 that drives the lifting unit 120 that lifts and lowers the spindle 110.

[0116] The control device 40 is provided with the operation screen IM as the above-described mode setting section, and is provided with a synchronous control section 401, a probe speed setting section 402, and a display control section 403. The display control section 403 causes the display section 45 to display the operation screen IM.

[0117] The synchronous control section 401 controls the intermediate shaft drive motor 103, the spindle drive motor 112, the lifting motor 126, the first draft motor 132, and the second draft motor 134 in synchronization. Further, "synchronization" does not mean that the rotational speeds of the motors 103, 112, 126, 132, 134 are all the same, but means that the speed ratio is constant. That is, "synchronous control" means that the synchronous control section 401 controls the intermediate shaft drive motor 103, the spindle drive motor 112, the lifting motor 126, the first draft motor 132, and the second draft motor 134 in such a manner that they are driven at appropriate rotational speeds so that the fiber bundle F can be spun according to the spinning parameters input by the parameter input section 47.

[0118] In addition, when the first maintenance mode M1 is executed, in order to drive the fiber bundle collecting device 10 and the spindle drive device 111 in synchronization, the synchronous control section 401 drives the spindle drive motor 112 and the intermediate shaft drive motor 103 in synchronization in such a manner that they are in unison. The synchronous control section 401 controls the intermediate shaft drive motor driver 128 and the inverter 116 so as to synchronize the spindle drive motor 112 and the intermediate shaft drive motor 103.

[0119] The detection speed setting section 402 sets a detection speed V2c of the intermediate shaft drive motor 103 and a detection speed V2s of the spindle drive motor 112 in the synchronous control section 401. Each of the detection speeds V2c, V2s is a constant rotational speed set in advance. The detection speed V2c of the intermediate shaft drive motor 103 is set to a sufficiently small value so as to be a rotational speed lower than the rotational speed V1c of the intermediate shaft drive motor 103 at the time when the stop instruction is input from the operation section 41. The detection speed V2s of the spindle drive motor 112 is set to a sufficiently small value so as to be a rotational speed lower than the rotational speed V1s of the spindle drive motor 112 at the time when the stop instruction is input from the operation section 41. Further, the detection speeds V2c, V2s are low-speed rotational speeds that enable the intermediate shaft drive motor 103 and the spindle drive motor 112 to be stopped quickly. The detection speed V2s of the spindle drive motor 112 is preferably a low speed. As one example of the detection speed V2s of the spindle drive motor 112 is a lowest-speed rotational speed of the spindle drive motor 112 that can be controlled by the inverter 116.

[0120] The detection speed V2c of the intermediate shaft drive motor 103 is a low speed lower than the detection speed V2s of the spindle drive motor 112. The detection speed V2c of the intermediate shaft drive motor 103 is a rotational speed at which the intermediate shaft 20 can be stopped at a prescribed rotational position by a slight rotation after the detection signal is output from the rotational position detection section 30. The prescribed rotational position is a position at which the coupling 70 is stopped within the operation range.

[0121] For example, if the rotational position detection section 30 detects the edge on the leading side in the rotational direction of the both edges of the detected surface 60c of the intermediate shaft 20, the rotational position detection section 30 outputs the detection signal. If the intermediate shaft 20 rotates at the detection speed V2c, the intermediate shaft 20 is stopped after the edge on the trailing side in the rotational direction of the detected surface 60c passes through the rotational position detection section 30 after the detection signal is output.

[0122] The detection speed V2c of the intermediate shaft drive motor 103 and the detection speed V2s of the spindle drive motor 112 are stored in the storage section of the control device 40.

[0123] <First maintenance mode>

[0124] The first maintenance mode M1 is executed in the operation of the spinning machine 100. The first maintenance mode M1 is a mode in which the coupling 70 is positioned within the operation range when the spinning machine 100 in operation is stopped and the rotation of the intermediate shaft 20 is stopped.

[0125] In the operation screen IM of the display section 45, if the ON button Bl of the first maintenance mode Ml is operated, the control device 40 is caused to set the first maintenance mode Ml as executable. If the first maintenance mode Ml is set as executable, the detection speed setting section 402 acquires the detection speed V2c of the intermediate shaft drive motor 103 and the detection speed V2s of the spindle drive motor 112 from the storage section and sets them in the synchronous control section 401.

[0126] In the first maintenance mode Ml, the synchronous control section 401 drives each of the intermediate shaft drive motor 103 and the spindle drive motor 112 so that each of the intermediate shaft drive motor 103 and the spindle drive motor 112 is decelerated from the rotation speed in the work in synchronization and to the detection speed V2c, V2s, and after the deceleration, the intermediate shaft drive motor 103 and the spindle drive motor 112 are driven in synchronization at the detection speed V2c, V2s.

[0127] In the first maintenance mode Ml, the synchronous control section 401 stops the drive of each of the intermediate shaft drive motor 103 and the spindle drive motor 112 at the time when the rotation position detection section 30 detects the detected surface 60c. Also, in the first maintenance mode Ml, if the drive of the intermediate shaft drive motor 103 is stopped by the synchronous control section 401, the drive of the fiber bundle bunching device 10 is stopped, and the intermediate shaft 20 slightly rotates due to inertia. Also, at the time of the rotation stop of the intermediate shaft 20, the coupling 70 is positioned at a position where the bolt 80 is easily operated. That is, the coupling 70 is positioned in the operation range.

[0128] In addition, if the drive of the spindle drive motor 112 is stopped by the synchronous control section 401, the spindle 110 slightly rotates and stops due to inertia. Therefore, if the first maintenance mode Ml is executed, the intermediate shaft 20 is stopped with the coupling 70 positioned in the operation range, and the spindle 110 immediately follows the stop thereof.

[0129] <Normal stop mode>

[0130] The normal stop mode M3 is executed in the operation of the spinning machine 100. In the normal stop mode M3, if a stop instruction is output from the operation section 41, the synchronous control section 401 synchronously decelerates each of the intermediate shaft driving motor 103 and the spindle driving motor 112. The synchronous control section 401 controls the intermediate shaft driving motor driver 128 and controls the inverter 116. Further, the synchronous control section 401 controls the intermediate shaft driving motor driver 128 to stop the intermediate shaft driving motor 103 if the inverter 116 is controlled to stop the spindle driving motor 112. That is, in the normal stop mode M3, the control device 40 stops the spindle driving motor 112 and the intermediate shaft driving motor 103 in such a manner that the intermediate shaft driving motor 103 follows the spindle driving motor 112. In the operation screen IM of the display section 45, if the OFF button B2 of the first maintenance mode Ml is operated, the control device 40 sets the normal stop mode M3 to be executable.

[0131] In Figure 13 FIG. 8 shows the relationship between the rotational speed of the spindle 110 and the intermediate shaft 20 and the time in the normal stop mode M3. The vertical axis of the graph indicates the rotational speed [rpm] of the spindle 110 and the intermediate shaft 20, and the horizontal axis of the graph indicates the time t. In addition, Figure 13 The solid line graph of FIG. 8 is the spindle 110. Figure 13 The one-dot chain line graph of FIG. 8 is the intermediate shaft 20.

[0132] As Figure 13 shown in FIG. 8, in the normal stop mode M3, in the operation of the spinning machine 100, if the operation section 41 is operated and a stop instruction is input at time tl, the synchronous control section 401 controls the inverter 116 so that deceleration of the spindle driving motor 112 is performed from the rotational speed VI s at this time tl. In addition, the synchronous control section 401 controls the intermediate shaft driving motor driver 128 so that deceleration of the intermediate shaft driving motor 103 is performed from the rotational speed VI c at this time tl. Then, the rotational speed of the spindle 110 and the rotational speed of the intermediate shaft 20 gradually decrease. Further, the synchronous control section 401 controls the intermediate shaft driving motor driver 128 and the inverter 116 in such a manner that the intermediate shaft driving motor 103 is stopped at the same time or almost at the same time as the spindle driving motor 112 is stopped. Then, the rotation of the intermediate shaft 20 is stopped at the same time or almost at the same time as the rotation of the spindle 110 is stopped. That is, at the time of the rotation of the spindle 110 being stopped, the rotation of the intermediate shaft 20 is made to follow the rotation of the spindle 110 in such a manner that the fiber bundle F is not cut.

[0133] [Effects of the Second Embodiment]

[0134] In Figure 14The graph illustrates the relationship between the rotational speed of spindle 110 and intermediate shaft 20 and time in the first maintenance mode M1. The vertical axis of the graph represents the rotational speed [rpm] of spindle 110 and intermediate shaft 20, and the horizontal axis represents time t. Additionally, Figure 14 The solid line chart represents spindle 110. Figure 14 The single-dotted line chart is the middle axis 20.

[0135] Therefore, as Figure 14 As shown, in a spinning machine 100 where the first maintenance mode M1 is set to be executable via the operation screen IM, if a stop command is output from the operation unit 41 at time t1 during operation, the synchronization control unit 401 controls the inverter 116 to decelerate the spindle drive motor 112 starting from the rotational speed V1s at time t1. Additionally, the synchronization control unit 401 controls the driver 128 for the intermediate shaft drive motor to decelerate the intermediate shaft drive motor 103 starting from the rotational speed V1c at time t1. Thus, the rotational speed of the spindle 110 and the intermediate shaft 20 gradually decrease. At this time, the synchronization control unit 401 can also synchronously decelerate other motors besides the intermediate shaft drive motor 103 and the spindle drive motor 112.

[0136] As the rotational speeds of the intermediate shaft drive motor 103 and the spindle drive motor 112 decrease, the intervals of the detection signals output from the rotational position detection unit 30 gradually increase. Then, if the rotational speeds V1c of the intermediate shaft drive motor 103 and V1s of the spindle drive motor 112 are each reduced to the detection speeds V2c and V2s of their respective motors 103 and 112, the synchronization control unit 401 synchronously drives the intermediate shaft drive motor 103 and the spindle drive motor 112 at the detection speeds V2c and V2s. Thus, the intermediate shaft drive motor 103 and the spindle drive motor 112 rotate at their respective detection speeds V2c and V2s and at constant rotational speeds.

[0137] Furthermore, after the intermediate shaft drive motor 103 begins to drive at the detection speed V2c, if a detection signal from the rotary position detection unit 30 is first input to the control device 40 at time t2, the synchronization control unit 401 causes the intermediate shaft drive motor 103 and the spindle drive motor 112 to stop synchronously. Thus, the intermediate shaft drive motor 103 and the spindle drive motor 112 stop after rotating slightly due to inertia. The intermediate shaft 20 and the spindle 110 also stop after rotating slightly. Then, if the rotation of the intermediate shaft 20 stops and the rotation of the spindle 110 stops, the coupling 70 stops within its operating range.

[0138] According to the above-described second embodiment, the following effects can be obtained.(2-1) If the first maintenance mode Ml is executed, the intermediate shaft 20 can be stopped and the coupling 70 can be positioned within the operation range based on the rotational position of the intermediate shaft 20, and the spindle 110 can be stopped following the intermediate shaft 20. Also, each of the intermediate shaft driving motor 103 and the spindle driving motor 112 is stopped from deceleration to the detection speed V2c, V2s, so the rotation caused by inertia after the stop can be reduced. As a result, even if the intermediate shaft 20 is stopped at a desired position, the difference in relative rotational speed with the spindle 110 can be reduced, so the situation in which the fiber bundle F is cut can be suppressed.

[0139] (2-2) The detection speeds V2c, V2s are set to constant speeds. Therefore, if driving at the detection speeds V2c, V2s, even if the detection signal is output from the rotational position detection section 30 at any time, the intermediate shaft driving motor 103 and the spindle driving motor 112 can be stopped with constant and slight rotation. For example, in the case where the detection signal is output during gradual deceleration of the intermediate shaft driving motor 103 and the spindle driving motor 112, the amount of rotation of the intermediate shaft 20 and the spindle 110 can be eliminated according to the time at which the detection signal is output. As a result, the situation in which the fiber bundle F is cut can be suppressed when the first maintenance mode Ml is executed.

[0140] (2-3) The detection speeds V2c, V2s are rotational speeds at which the intermediate shaft 20 is stopped almost without rotation due to inertia after the intermediate shaft driving motor 103 is stopped. Therefore, after the intermediate shaft driving motor 103 is stopped, the coupling 70 is easily positioned within the operation range.

[0141] (2-4) The operation screen IM as the mode setting section can set the first maintenance mode Ml or the normal stop mode M3 to be executable by operation of the operation screen IM. Therefore, for example, when maintenance of the fiber bundle bunching device 10 is not required, the spinning machine 100 can be stopped in the normal stop mode M3, and when maintenance of the fiber bundle bunching device 10 is required, the spinning machine 100 can be stopped in the first maintenance mode Ml. Therefore, the method of stopping the spinning machine 100 can be selected according to the state of the fiber bundle bunching device 10, so the demand of the operator for use of the spinning machine 100 can be satisfied.

[0142] (Third Embodiment)

[0143] Next, a third embodiment in which the fiber bundle bunching device of the spinning machine is embodied will be described based on Figure 15 In the third embodiment, detailed description of the same parts as those of the first and second embodiments will be omitted.

[0144] In the third embodiment, the second maintenance mode M2 ​​will be described.

[0145] <Second Maintenance Mode>

[0146] The second maintenance mode M2 ​​is executed when the spinning machine 100 is stopped. That is, the second maintenance mode M2 ​​is executed when maintenance of the fiber bundle assembly device 10 is required. The second maintenance mode M2 ​​is a mode in which the coupling 70 is placed within the operating range after the spinning machine 100 stops and the rotation of the intermediate shaft 20 stops following a start-stop operation.

[0147] If the ON button B3 of the second maintenance mode M2 ​​is operated in the operation screen IM of the display unit 45, the second maintenance mode M2 ​​is set to be executable in the control device 40. If the second maintenance mode M2 ​​is set to be executable, the detection speed setting unit 402 obtains the detection speeds V2c and V2s of the intermediate shaft drive motor 103 and the spindle drive motor 112 from the storage unit and sets them in the synchronization control unit 401.

[0148] like Figure 15 As shown, in the third embodiment, the detection speeds V2c and V2s are also the rotational speeds of the intermediate shaft drive motor 103 and the spindle drive motor 112, and are set at each of the predetermined rotational speeds of the intermediate shaft drive motor 103 and the spindle drive motor 112. Moreover, the detection speeds V2c and V2s are set to sufficiently small values ​​so that in the spinning machine 100 during operation, they become rotational speeds lower than the rotational speeds V1c and V1s at the moment when a stop command is input from the operation unit 41.

[0149] In the second maintenance mode M2, if the start button 46 is operated at time ts, the execution command for the second maintenance mode M2 ​​is input to the control device 40. Then, the synchronization control unit 401 starts the intermediate shaft drive motor 103 and the spindle drive motor 112, and drives them synchronously. After the spinning machine 100 starts, the synchronization control unit 401 synchronizes the intermediate shaft drive motor 103 and the spindle drive motor 112 and drives them at detection speeds V2c and V2s. In the second maintenance mode M2, at time t2 when the rotational position detection unit 30 detects the detected surface 60c, the synchronization control unit 401 stops the driving of the intermediate shaft drive motor 103 and the spindle drive motor 112 respectively. Furthermore, in the second maintenance mode M2, if the driving of the intermediate shaft drive motor 103 is stopped by the synchronization control unit 401, the driving of the fiber bundle bundling device 10 stops, and the intermediate shaft 20 rotates slightly due to inertia. Furthermore, when the rotation of the intermediate shaft 20 stops, the coupling 70 is positioned where the bolt 80 can be easily accessed. That is, the coupling 70 is within its operating range.

[0150] Furthermore, if the spindle drive motor 112 is stopped by the synchronization control unit 401, the spindle 110 will rotate slightly due to inertia and then stop. Therefore, if the second maintenance mode M2 ​​is executed, the intermediate shaft 20 stops and the spindle 110 immediately follows suit and stops when the coupling 70 is within the operating range.

[0151] exist Figure 15 The graph illustrates the relationship between the rotational speed of spindle 110 and intermediate shaft 20 and time in the second maintenance mode M2. The vertical axis of the graph represents the rotational speed [rpm] of spindle 110 and intermediate shaft 20, and the horizontal axis represents time t. Additionally, Figure 15 The solid line chart represents spindle 110. Figure 15 The single-dotted line chart is the middle axis 20.

[0152] [The role of the third implementation method]

[0153] Therefore, as Figure 15 As shown, in the spinning machine 100 after stopping in normal stop mode M3, if the second maintenance mode M2 ​​is set to be executable via the operation screen IM, the start button 46 is operated at time ts to input the execution command for the second maintenance mode M2. Then, the synchronization control unit 401 synchronously drives the intermediate shaft drive motor 103 and the spindle drive motor 112, accelerating them at a constant acceleration to the detection speeds V2c and V2s. Furthermore, if the rotational speeds of the intermediate shaft drive motor 103 and the spindle drive motor 112 reach the detection speeds V2c and V2s, the synchronization control unit 401 synchronously drives the intermediate shaft drive motor 103 and the spindle drive motor 112 at the detection speeds V2c and V2s.

[0154] After the intermediate shaft drive motor 103 and the spindle drive motor 112 begin driving at detection speeds V2c and V2s, if a detection signal from the rotational position detection unit 30 is first input to the control device 40 at time t2, the synchronization control unit 401 synchronizes the intermediate shaft drive motor 103 and the spindle drive motor 112 and stops driving. Thus, the intermediate shaft drive motor 103 and the spindle drive motor 112 stop after rotating slightly due to inertia. The intermediate shaft 20 and the spindle 110 also stop after rotating slightly due to inertia. Furthermore, if the rotation of the intermediate shaft 20 stops and the rotation of the spindle 110 stops, the coupling 70 stops within its operating range.

[0155] According to the third embodiment described above, the following effects can be obtained.

[0156] (3-1) By executing the second maintenance mode M2, it is possible to position the coupling 70 in the operation range. Therefore, even in the case where maintenance of the fiber bundle collecting device 10 is intended to be performed at the time of stop of the spinning machine 100, it is possible to position the intermediate shaft 20 at a position where maintenance is easily performed by executing the second maintenance mode M2. Also, even if the intermediate shaft 20 is stopped at a desired position, it is possible to reduce the difference in relative rotational speed from the spindle 110, so it is possible to suppress the case where the fiber bundle F is cut off at the time of execution of the second maintenance mode M2.

[0157] Each embodiment can be implemented by being changed as follows. Each embodiment and the following modified examples can be implemented in combination with each other within a range where they are not technically contradictory.

[0158] As shown in FIG. 8, the detected surface 71c can also be provided to the coupling 70. The detected surface 71c can be provided by forming a flat surface on the outer surface of the first connecting member 71, or can be provided by forming a flat surface on the outer surface of the second connecting member 72. Figure 16

[0159] The detected portion can not be a surface such as the detected surface 60c. For example, a groove or a hole can be provided to the intermediate shaft 20, the detection shaft 60. In any case, as long as the rotational position of the intermediate shaft 20 can be detected by the rotational position detection portion 30, the kind of the rotational position detection portion 30 and the kind of the detected portion can be changed.

[0160] In the case where the fiber bundle collecting device 10 is provided with two intermediate shafts 20, the coupling 70 can be one.

[0161] The coupling main body 73 of the coupling 70 can be divided by the first connecting member 71 and the second connecting member 72. For example, the coupling main body 73 can also be a C shape when viewed in the axial direction.

[0162] The detection shaft 60 can be changed to the intermediate shaft 20. In this case, the detected portion is provided to the second connecting end portion 20c of the intermediate shaft 20. Also, the position of the detected portion in the long direction X can be the end portion in the long direction X, or the center, or can be arbitrarily set. In this case, the position of the rotational position detection portion 30 is changed according to the position of the detected portion.

[0163] The operation range can also be appropriately changed. For example, it can be set to a position from the position shown in FIG. 9 to a position where the coupling 70 is rotated downward by 45 degrees from the bolt head receiving portion 75. In any case, as long as it is a position where the operation of the bolt 80 can be performed by the operator, the operation range can be appropriately changed. Figure 4

[0164] ​​The number of the fiber bundle collecting device 10 and the number of the intermediate shaft 20 can also be changed as appropriate. In this case, the spinning machine 100 can also be provided with an intermediate head depending on the number of the fiber bundle collecting device 10.

[0165] The fiber bundle collecting device 10 can also be provided with a plurality of the detected portions, in which case the rotational position detecting portion 30 is arranged depending on each of the detected portions. For example, the rotational positions of a plurality of the couplings 70 are made different. Also, the detected portions are provided at each of the intermediate shafts 20 or the couplings 70, and the rotational position detecting portion 30 is provided depending on each of the detected portions.

[0166] The shaft lengths of the first joint end portion 20b and the second joint end portion 20c of the intermediate shaft 20 can also be changed as appropriate.

[0167] The support method of the detection shaft 60, the arrangement method of the rotational position detecting portion 30, the position of the detected surface 60c, and the position of the rotational position detecting portion 30 can be changed as appropriate as long as the rotational position detecting portion 30 can detect the detected surface 60c.

[0168] In the first maintenance mode Ml and the second maintenance mode M2, the timing at which the driving of each of the intermediate shaft driving motor 103 and the spindle driving motor 112 is stopped in the driving at the detection speed V2c, V2s can also be other than the timing at which the detected surface 60c is detected for the first time by the rotational position detecting portion 30, and can be changed arbitrarily. For example, the timing at which the detected surface 60c is detected for the second time by the rotational position detecting portion 30 can also be set.

[0169] In the spinning machine 100, the drafting device 130 and the lifting unit 120 can also be driven by the driving of the spindle driving motor 112. In this case, the drafting device 130 is not provided with the first drafting motor 132 and the second drafting motor 134, and the lifting unit 120 is not provided with the lifting motor 126.

Claims

1. A fiber bundle collecting device of a spinning machine, characterized by, Possess: a cotton collecting unit having a delivery bottom roller provided to a rotating shaft and delivering a fiber bundle, a suction portion applying a suction to the fiber bundle, a porous apron rotating along the suction portion, and a delivery top roller rotating together with the delivery bottom roller in contact with the delivery bottom roller through the porous apron, and collecting the fiber bundle being drafted; a plurality of intermediate shafts rotating the rotating shaft and arranged in the axial direction of the intermediate shafts; an intermediate shaft drive motor driving the intermediate shafts; and a coupling linking the intermediate shafts adjacent in the axial direction and rotating integrally with the intermediate shafts, the coupling links the intermediate shafts by a coupling body fastened with bolts between end portions of the adjacent intermediate shafts, the fiber bundle collecting device further has: a detected portion provided to the intermediate shaft or the coupling and detecting a rotational position of the intermediate shaft; a rotational position detection portion outputting rotational position information of the intermediate shaft by detecting the detected portion; a control device inputting the rotational position information outputted from the rotational position detection portion and controlling the intermediate shaft drive motor; and an operation portion outputting a stop instruction to stop the driving of the intermediate shaft drive motor to the control device, a range in which the rotational position of the coupling and the operation of the bolts with respect to the coupling body from the front can be performed is set as an operation range of the coupling, the control device, if the stop instruction is inputted from the operation portion, controls the driving of the intermediate shaft drive motor based on the rotational position information inputted from the rotational position detection portion so that the coupling is located within the operation range when the rotation of the intermediate shaft is stopped, the fiber bundle collecting device has a plurality of the couplings, and positions of all the couplings in the circumferential direction of the intermediate shafts are aligned.

2. The fiber bundle collecting device of a spinning machine according to claim 1, wherein a detection shaft, which rotates as an intermediate shaft and has a shorter shaft length than the intermediate shaft, is linked to the intermediate shaft located at one end among the plurality of arranged intermediate shafts, and the detected portion is provided to the detection shaft.

3. The fiber bundle collecting device of a spinning machine according to claim 1, wherein the spinning machine has a spindle drive motor driving a spindle for winding the fiber bundle collected by the fiber bundle collecting device, the control device has: a synchronous control portion synchronously driving the intermediate shaft drive motor and the spindle drive motor; a detection speed setting portion setting a detection speed, which is a rotational speed of each of the intermediate shaft drive motor and the spindle drive motor, and is a rotational speed set to each of the intermediate shaft drive motor and the spindle drive motor, and is a lower rotational speed than the rotational speed at the time when the stop instruction is inputted from the operation portion; and ​ a mode setting section that sets a first maintenance mode in which the coupling is located within the operation range when the spinning machine in operation is stopped and the rotation of the intermediate shaft is stopped as executable, when the first maintenance mode is set as executable by the mode setting section, when the stop instruction is input from the operation section during the operation of the spinning machine, the synchronization control section drives each of the intermediate shaft driving motor and the spindle driving motor so as to be synchronized in deceleration to the detection speed, and drives the intermediate shaft driving motor and the spindle driving motor at the detection speed, and stops the drive of each of the intermediate shaft driving motor and the spindle driving motor at the time when the rotation position detection section detects the detected section.

4. The fiber bundle bunching device of a spinning machine according to claim 1, characterized in that the spinning machine is provided with a spindle driving motor that drives a spindle in order to wind the fiber bundle that is bundled by the fiber bundle bunching device, the control device is provided with: a synchronization control section that synchronously drives the intermediate shaft driving motor and the spindle driving motor; a detection speed setting section that sets a detection speed that is the rotation speed of each of the intermediate shaft driving motor and the spindle driving motor, and is the rotation speed set to each of the intermediate shaft driving motor and the spindle driving motor, and is a lower rotation speed than the rotation speed at the time when the stop instruction is input from the operation section; and a mode setting section that sets a second maintenance mode in which the coupling is located within the operation range when the spinning machine that is started after being stopped is stopped and the rotation of the intermediate shaft is stopped as executable, when the second maintenance mode is set as executable by the mode setting section, when the execution instruction of the second maintenance mode is input to the spinning machine that is stopped, the synchronization control section synchronously drives the intermediate shaft driving motor and the spindle driving motor at the detection speed, and stops the drive of each of the intermediate shaft driving motor and the spindle driving motor at the time when the rotation position detection section detects the detected section.

5. The fiber bundle bunching device of a spinning machine according to claim 3, characterized in that the mode setting section sets a normal stop mode in which the intermediate shaft driving motor follows the spindle driving motor and the spindle driving motor and the intermediate shaft driving motor are stopped as executable.

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