CN117071124A - Fiber bundle bundling device of spinning machine - Google Patents

Abstract

Provided is a fiber bundle concentrating device of a spinning machine, which can position a coupler at a position convenient for operating a bolt when stopping the fiber bundle concentrating device. A fiber bundle bundling device (10) is provided with: a rotational position detection unit (30) that detects a surface (60 c) to be detected and outputs rotational position information of the intermediate shaft (20); a control device (40) which receives the rotation position information output from the rotation position detection unit (30) and controls the rotation of the intermediate shaft (20); and an operation unit (41) that outputs a stop command for stopping rotation of the intermediate shaft (20) to the control device (40). When a stop command is input from an operation unit (41), a control device (40) controls the driving of the intermediate shaft (20) so that the coupling (70) is positioned within an operation range when stopping the rotation of the intermediate shaft (20) based on rotation position information input from a rotation position detection unit (30).

Description

Fiber bundle bundling device of spinning machine

Technical Field

The present invention relates to a fiber bundle bundling device for spinning machine.

Background

The fiber bundle bundling device of the spinning machine is pre-bundled before twisting the fiber bundle drawn by the drafting device. By this bundling, yarn quality such as fluff reduction and yarn strength is improved. The fiber bundle bundling device is arranged on the spinning machine body. As disclosed in patent document 1, such a fiber bundle bundling device includes: the fiber bundle feeder includes a rotary shaft for feeding the fiber bundle to a bottom roller, and an intermediate shaft for rotating the rotary shaft. A drive gear is provided on the intermediate shaft, and a driven gear is provided on the rotary shaft. The driving gear is meshed with the driven gear. By this engagement, the rotational force is transmitted from the intermediate axial rotation shaft.

Generally, a spinning machine has a long machine body, and it is difficult to drive a fiber bundle bundling device with one intermediate shaft. Accordingly, the fiber bundle collecting device is provided with a plurality of intermediate shafts. The plurality of intermediate shafts are arranged in the axial direction of the intermediate shaft, and the intermediate shafts adjacent in the axial direction are coupled by a coupling. In this case, the coupling connects the intermediate shafts to each other by bolt fastening.

Patent document 1: european patent application publication No. 1473388 specification

In order to perform maintenance of the fiber bundle collecting device, it is often necessary to release the coupling of the intermediate shafts by the coupling. In this case, after stopping the driving of the fiber bundle bundling device and stopping the rotation of the intermediate shaft, the fastening by the bolts needs to be released. Further, after the maintenance or the like is completed, the tightening by the bolts needs to be performed again. However, it is very difficult to perform the operation of the bolt depending on the rotational position of the coupling when the rotation of the intermediate shaft is stopped by stopping the driving of the fiber bundle collecting device.

Disclosure of Invention

The fiber bundle bundling device for spinning machine for solving the above problems comprises: a cotton collecting unit having a conveying bottom roller provided on a rotating shaft and conveying a fiber bundle, a suction portion for applying a suction action to the fiber bundle, a breathable apron rotating along the suction portion, and a conveying upper roller rotating together with the conveying bottom roller in contact with the breathable apron via the breathable apron, and bundling the drafted fiber bundle; a plurality of intermediate shafts that rotate the rotary shaft and are aligned in an axial direction of the intermediate shafts; an intermediate shaft driving motor for driving the intermediate shaft; and a coupling that is coupled to the intermediate shaft adjacent to each other in the axial direction and integrally rotates with the intermediate shaft, wherein the coupling couples the intermediate shaft by fastening a coupling main body that is provided between end portions of the adjacent intermediate shafts by bolts, and wherein the fiber bundle collecting device further includes: a detected part provided in the intermediate shaft or the coupling and configured to detect a rotational position of the intermediate shaft; a rotational position detecting unit configured to output rotational position information of the intermediate shaft by detecting the detected unit; a control device that receives the rotational position information output from the rotational position detecting unit and controls the intermediate shaft driving motor; and an operation unit that outputs a stop command for stopping the driving of the intermediate shaft driving motor to the control device, wherein a range in which the rotation position of the coupling and the operation of the bolt with respect to the coupling main body can be performed from the front is set as an operation range of the coupling, and wherein the control device controls the driving of the intermediate shaft driving motor so that the coupling is positioned within the operation range when the rotation of the intermediate shaft is stopped, based on the rotation position information input from the rotation position detection unit, when the stop command is input from the operation unit.

Thus, when a stop command is output from the operation unit, the rotation of the intermediate shaft drive motor is stopped and the rotation of the intermediate shaft is stopped, the coupling is positioned within the operation range. Therefore, when stopping the fiber bundle bundling device, the coupling can be positioned at a position convenient for operating the bolt. As a result, the operation of the bolt with respect to the coupling body can be easily performed after the driving of the fiber bundle concentrating device is stopped.

In the fiber bundle collecting device of the spinning machine, the fiber bundle collecting device may include a plurality of the couplers, and the rotational positions of all of the plurality of the couplers may be aligned. Thus, when a stop command is output from the operation unit, the drive of the intermediate shaft drive motor is stopped and the rotation of the intermediate shaft is stopped, all the couplings are positioned within the operation range. Therefore, the bolt can be operated with respect to the coupling body regardless of the coupling.

In the fiber bundle collecting device of the spinning machine, a detection shaft may be connected to the intermediate shaft located at one end of the plurality of intermediate shafts, the detection shaft may be rotatable as an intermediate shaft, the detection shaft may have a shorter shaft length than the intermediate shaft, and the detection section may be provided on the detection shaft.

This makes it possible to reduce the size of the fiber bundle collecting device, for example, compared with a case where another intermediate shaft having a portion to be detected is connected to an intermediate shaft at one end in the axial direction.

In the fiber bundle bundling device of the spinning machine, the spinning machine may further include a spindle driving motor that drives a spindle for winding the fiber bundle bundled by the fiber bundle bundling device, and the control device may further include: a synchronization control unit that synchronously drives the intermediate shaft drive motor and the spindle drive motor; a detection speed setting unit that sets a detection speed, which is a rotation speed of each of the intermediate shaft drive motor and the spindle drive motor, which is a rotation speed set for each of the intermediate shaft drive motor and the spindle drive motor, and which is a rotation speed lower than the rotation speed at the time of inputting the stop command from the operation unit; and a mode setting unit configured to set a first maintenance mode in which the coupling is located within the operation range to be executable when the spinning machine is stopped and rotation of the intermediate shaft is stopped during operation, wherein when the first maintenance mode is set to be executable by the mode setting unit, the synchronization control unit drives each of the intermediate shaft drive motor and the spindle drive motor so as to be synchronously decelerated to the detection speed when the stop command is input from the operation unit during operation of the spinning machine, and synchronously drives the intermediate shaft drive motor and the spindle drive motor at the detection speed, and stops driving of each of the intermediate shaft drive motor and the spindle drive motor when the rotation position detection unit detects the detected unit.

Thus, when the mode setting unit sets the first maintenance mode to be executable, the synchronous control unit synchronously stops the intermediate shaft drive motor and the spindle drive motor when the detection signal is output from the rotational position detection unit during driving at the detection speed. The spindle is then stopped following the stop of the intermediate shaft so that the coupling is located within the operating range. That is, based on the rotational position of the intermediate shaft, the intermediate shaft can be stopped to bring the coupling into the operating range, and the spindle can be stopped following the intermediate shaft. Further, since each of the intermediate shaft drive motor and the spindle drive motor is stopped from a state of being decelerated to the detection speed, the rotation due to 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 between the intermediate shaft and the spindle can be reduced, and therefore, the fiber bundle can be prevented from being cut.

In the fiber bundle bundling device of the spinning machine, the spinning machine may further include a spindle driving motor that drives a spindle for winding the fiber bundle bundled by the fiber bundle bundling device, and the control device may further include: a synchronization control unit that synchronously drives the intermediate shaft drive motor and the spindle drive motor; a detection speed setting unit that sets a detection speed, which is a rotation speed of each of the intermediate shaft drive motor and the spindle drive motor, which is a rotation speed set for each of the intermediate shaft drive motor and the spindle drive motor, and which is a rotation speed lower than the rotation speed at the time of inputting the stop command from the operation unit; and a mode setting unit that sets a second maintenance mode for setting the coupling within the operation range to be executable when the spinning machine is stopped and the rotation of the intermediate shaft is stopped after the spinning machine is started while the spinning machine is stopped, wherein the synchronization control unit synchronously drives the intermediate shaft driving motor and the spindle driving motor at the detection speed when an execution instruction of the second maintenance mode is input to the spinning machine while the spinning machine is stopped when the second maintenance mode is set to be executable by the mode setting unit, and stops the driving of the intermediate shaft driving motor and the spindle driving motor at a timing when the rotation position detection unit detects the detected unit.

Accordingly, when the second maintenance mode is set to be executable by the mode setting unit, the synchronous control unit stops the intermediate shaft drive motor and the spindle drive motor synchronously when the detection signal is output from the rotational position detection unit during driving at the detection speed after the start of the spinning machine. The spindle is then stopped following the stop of the intermediate shaft so that the coupling is located within the operating range. That is, based on the rotational position of the intermediate shaft, the intermediate shaft can be stopped to bring the coupling into the operation range, and the spindle can be stopped following the intermediate shaft. Further, since each of the intermediate shaft drive motor and the spindle drive motor is stopped during rotation at the detection speed, rotation due to 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 between the intermediate shaft and the spindle can be reduced, and therefore, the fiber bundle can be prevented from being cut. Even when maintenance of the fiber bundle collecting device is to be performed during stopping of the spinning machine, the intermediate shaft can be positioned at a position where maintenance is easy by executing the second maintenance mode.

In the fiber bundle bundling device for spinning machine, the mode setting unit may set a normal stop mode in which the spindle drive motor and the intermediate shaft drive motor are stopped by causing the intermediate shaft drive motor to follow the spindle drive motor.

Thus, the method of stopping the spinning machine can be selected, and thus the operator's demand can be satisfied.

According to the present invention, when stopping the fiber bundle bundling device, the coupling can be positioned at a position convenient for operating the bolt.

Drawings

Fig. 1 is a front view schematically showing a spinning machine and a fiber bundle bundling device according to a first embodiment.

Fig. 2 is a sectional view showing the cotton collecting unit.

Fig. 3 is a perspective view showing a coupling.

Fig. 4 is a cross-sectional view of the coupling showing the operating range.

Fig. 5 is a cross-sectional view of the coupling showing the operating range.

Fig. 6 is a perspective view showing the mounting jig.

Fig. 7 is a front view showing a state in which the clamp body is attached to the intermediate shaft.

Fig. 8 is a side view showing a state in which the clamp body is attached to the intermediate shaft.

Fig. 9 is a side view showing the mounting jig.

Fig. 10 is a partial perspective view showing a surface to be detected of the shaft for detection.

Fig. 11 is a schematic configuration diagram showing a spinning machine according to the second embodiment.

Fig. 12 is a schematic diagram of an input unit.

Fig. 13 is a diagram illustrating a normal stop mode.

Fig. 14 is a diagram illustrating the first maintenance mode.

Fig. 15 is a diagram illustrating the second maintenance mode.

Fig. 16 is a partial perspective view showing a detected surface of the coupling.

Description of the reference numerals

The device comprises F … fiber bundles, 10 … fiber bundle bundling devices, 11 … cotton collecting units, 12 … rotating shafts, 13 … conveying bottom rollers, 14 … suction parts, 15 … ventilating leather rings, 16 … conveying upper rollers, 20 … intermediate shafts, 20b … first connecting end parts, 20c … second connecting end parts, 30 … rotating position detecting parts, 40 … control devices, 41 … operation parts, 60 … detecting shafts, 60c and 71c … serving as detected surfaces of the detected parts, 70 … couplings, 73 … coupling main bodies, 80 … bolts, 103 … intermediate shaft driving motors, 110 … spindles, 112 … driving spindle motors, 401 … synchronous control parts, 402 … detecting speed setting parts and IM … serving as operation pictures of mode setting parts.

Detailed Description

(first embodiment)

A first embodiment of a fiber bundle collecting device of a spinning machine will be described below with reference to fig. 1 to 10.

Integral of fiber bundle bundling device of spinning machine

The fiber bundle bundling device of the spinning machine is arranged at the downstream side of the drafting device. In the following description, the "fiber bundle collecting device of the spinning machine" will be described as "fiber bundle collecting device". The fiber bundle bundling device is a device that bundles in advance before twisting the drafted fiber bundle. The fiber bundle bundling device is a device for performing treatments such as reduction of fluff of bundled fiber bundles.

Spinning machine

As shown in fig. 1, the spinning machine 100 includes a fiber bundle bundling device 10, an outer end 101, a gear end 102, and a plurality of support plates 50. The outer end 101 and the gear end 102 are provided in a body not shown. A countershaft drive motor 103 is incorporated in the gear head 102. The intermediate shaft driving motor 103 drives the fiber bundle bundling device 10. The draft device is provided on the back side of the fiber bundle collecting device 10 in the direction perpendicular to the paper surface of fig. 1. After being processed by the fiber bundle bundling device 10, the fiber bundle F is conveyed downward toward the front side in the direction perpendicular to the paper surface of fig. 1. The front side in the vertical direction of the paper surface in fig. 1 is the front side of the fiber bundle collecting device 10. Accordingly, the fiber bundle F processed by the fiber bundle bundling device 10 is conveyed toward the front of the fiber bundle bundling device 10. The case where the fiber bundle bundling device 10 is viewed from the front is taken as the front view. The direction in which the outer end 101 faces the gear end 102 is the longitudinal direction X of the spinning machine 100.

< support plate >)

The support plate 50 is fixed to a roller bracket, not shown. The support plate 50 is disposed between the outer end 101 and the gear end 102.

The support plate 50 is schematically shown in fig. 8. As shown in fig. 8, the support plate 50 is formed with a shaft groove 53. The shaft groove 53 is arc-shaped and opens obliquely upward toward the front in a side view of the support plate 50 viewed in the longitudinal direction X of the spinning machine 100.

Fiber bundle bundling device

As shown in fig. 1, the fiber bundle bundling device 10 is arranged between the outer end 101 and the gear end 102. The fiber bundle bundling device 10 includes a plurality of cotton collecting units 11, a plurality of intermediate shafts 20, and a coupling 70 that connects adjacent intermediate shafts 20. The fiber bundle bundling device 10 further includes a rotational position detecting unit 30, a control device 40, an operating unit 41, and a detected surface 60c as a detected unit.

< Cotton collecting unit >)

The collecting unit 11 bundles the drafted fiber bundle F.

As shown in fig. 1 and 2, the cotton collecting unit 11 includes a rotary shaft 12, a conveying bottom roller 13, a suction unit 14, a breathable apron 15, and a conveying upper roller 16. The conveying bottom roller 13 is provided at the rotation shaft 12 and rotates integrally with the rotation shaft 12. The rotary shaft 12 is provided with a driven gear 18.

The suction unit 14 includes a plurality of suction holes, not shown. The suction unit 14 applies suction to the transported fiber bundle F via the breathable apron 15. The breathable apron 15 is formed of endless fabric capable of ensuring breathability. The breathable apron 15 is wound around the conveying bottom roller 13, the suction unit 14, and the guide unit 19. The breathable apron 15 rotates along the attraction portion 14. The upper conveying roller 16 is in contact with the lower conveying roller 13 via the air-permeable apron 15, and rotates together with the lower conveying roller 13.

As shown in fig. 1, the fiber bundle bundling device 10 has a cotton collecting unit 11 of eight spindles as one unit. The fiber bundle bundling device 10 is provided with a plurality of unit cotton collecting units 11 between the outer end 101 and the gear end 102. One unit of the cotton collecting unit 11 is disposed between the support plates 50. Two single-unit support plates 50 are disposed between adjacent cotton collecting elements 11 in the longitudinal direction X. A rotation shaft bearing 51 and a shaft bearing 52 are disposed between the support plates 50 of one unit. The rotation shaft 12 is rotatably supported by the support plate 50 via a rotation shaft bearing 51.

< intermediate shaft >

The intermediate shaft 20 rotates the rotary shaft 12. A plurality of intermediate shafts 20 are arranged in the axial direction of the intermediate shaft 20. The intermediate shaft 20 is rotatably supported by a support plate 50 via a shaft bearing 52. A plurality of intermediate shafts 20 are arranged in the longitudinal direction X of the spinning machine 100. The intermediate shaft 20 includes a shaft main body 20a, a first connecting end 20b, and a second connecting end 20c. The first connecting end portion 20b is provided at a first end portion of the shaft main body 20a in the axial direction. The second connecting end 20c is provided at a second end of the shaft body 20a in the axial direction. The axial length of the first connecting end portion 20b is shorter than the axial length of the second connecting end portion 20c. The diameters of the first connecting end portion 20b and the second connecting end portion 20c are smaller than the diameter of the shaft main body 20 a.

As shown in fig. 3, the first connecting end portion 20b faces the second connecting end portion 20c of the adjacent intermediate shaft 20. The second connecting end portion 20c is inserted between the support plates 50 of one unit, and is rotatably supported by the support plates 50 via the shaft bearings 52.

As shown in fig. 1, the intermediate shaft 20 includes a drive gear 21. The drive gear 21 is disposed at a position closer to the first connecting end 20b than the position of the intermediate shaft 20 in the axial direction. The driven gear 18 and the driving gear 21 may be disposed at a position closer to the second connecting end 20c than the position of the intermediate shaft 20 in the axial direction, or may be disposed at the center in the axial direction. The drive gear 21 is engaged with the driven gear 18 of the rotary shaft 12. When the drive gear 21 rotates together with the intermediate shaft 20, the driven gear 18 of the rotary shaft 12 is rotated. The conveying bottom roller 13 rotates together with the rotation shaft 12 with the rotation of the driven gear 18. By the rotation of the conveying bottom roller 13, the air-permeable apron 15 rotates and conveys the fiber bundle F. Accordingly, the conveying bottom roller 13 conveys the fiber bundle F.

The fiber bundle F is conveyed while being sandwiched by the conveying bottom roller 13 and the conveying upper roller 16 which rotate in accordance with the rotation of the rotary shaft 12 driven by the intermediate shaft 20, and is sucked by the suction unit 14 via the air-permeable apron 15.

< shaft for detection >)

The detection shaft 60, which is also an intermediate shaft, is coupled to the intermediate shaft 20 located at one end of the plurality of intermediate shafts 20 arranged in series. Specifically, the detection shaft 60 is coupled to the intermediate shaft 20 closest to the outer end 101. The detection shaft 60 rotates as an intermediate shaft. The shaft length of the detection shaft 60 is shorter than that of the intermediate shaft 20.

The first end 60a of the detection shaft 60 is coupled to the second coupling 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 tip 101 and is rotatably supported by a bearing 105. A detection surface 60c as a detection portion is provided at the second end 60b of the detection shaft 60. Therefore, the intermediate shaft 20 includes the detected surface 60c as the detected portion. The detected surface 60c is provided for detecting the rotational position of the intermediate shaft 20. As shown in fig. 10, the surface 60c to be detected is a plane extending in the axial direction and the radial direction of the shaft 60 for detection.

Coupling

As shown in fig. 3, 4 and 5, the coupling 70 includes a coupling body 73 and a plurality of bolts 80. The coupling body 73 includes a first coupling member 71 and a second coupling member 72. The axial direction of the coupling 70 is defined as the axial directions of the first coupling member 71 and the second coupling member 72, and the radial direction of the coupling 70 is defined as the radial directions of the first coupling member 71 and the second coupling member 72. The first coupling member 71 and the second coupling member 72 are semi-cylindrical. The first coupling member 71 and the second coupling member 72 are each provided with a storage recess 79. The receiving recess 79 is a recess for receiving the first connecting end portion 20b and the second connecting end portion 20 c. Each of the first coupling member 71 and the second coupling member 72 includes an engagement surface 74 that radially clamps the receiving recess 79.

The first coupling member 71 is formed with a bolt head receiving portion 75 and an insertion hole 76 communicating with the bolt head receiving portion 75. The bolt head receiving portion 75 is open to an arcuate surface of the outer surface of the first coupling member 71. The insertion hole 76 opens to the mating surface 74 of the first connecting member 71. The bolt head receiving portions 75 and the insertion holes 76 are aligned in the axial direction of the first coupling member 71 along the receiving recess 79. The bolt head housing portion 75 and the insertion hole 76 are disposed on both sides of the housing recess 79 so as to sandwich the housing recess 79 in the radial direction.

The second coupling member 72 is formed with a female screw 77. The female screw 77 communicates the arcuate surface of the outer surface of the second connecting member 72 with the mating surface 74. The female threads 77 are aligned in a row along the receiving recess 79 in the axial direction of the second coupling member 72. The female screw 77 is disposed on both sides of the housing recess 79 so as to sandwich the housing recess 79 in the radial direction.

The bolt 80 includes a bolt head portion 80a and a bolt shaft portion 80b. An operation hole 80c is formed in the bolt head 80 a. The operation hole 80c is a hexagonal hole. The bolt 80 is operated by inserting the operating tool 90 into the operating hole 80c. The operating tool 90 is a bar of elongated hexagonal prism.

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

The coupling body 73 is provided between the first connecting end portion 20b and the second connecting end portion 20c adjacent to each other in the longitudinal direction X. A part of the bolt head 80a is accommodated in the bolt head accommodating portion 75. The first connection end portion 20b and the second connection end portion 20c are sandwiched between the accommodation recess 79 of the first connection member 71 and the accommodation recess 79 of the second connection member 72. Thereby, the intermediate shafts 20 are coupled to each other. Therefore, the coupling 70 connects the adjacent intermediate shafts 20 by fastening the coupling main bodies 73, which are erected at the end portions of the adjacent intermediate shafts 20, with bolts 80. All the intermediate shafts 20 and the detection shafts 60 included in the fiber bundle collecting device 10 are connected by a coupling 70. Therefore, all of the intermediate shaft 20 and the detection shaft 60 integrally rotate.

Regarding the intermediate shaft 20, the position of a point in the circumferential direction of the intermediate shaft 20, that is, the rotational position changes in the rotational direction as the intermediate shaft 20 rotates. The position of a point in the circumferential direction of the coupling 70, that is, the rotational position changes in the rotational direction when the intermediate shaft 20 rotates. All the couplings 70 are configured to align the positions of the bolt head receiving portions 75 in the rotational direction of the intermediate shaft 20, and to connect the intermediate shaft 20. I.e. the rotational positions of all the plurality of couplings 70 are aligned.

As shown in fig. 1, all the couplings 70 are aligned with the position of the bolt head receiving portion 75 in the rotational direction of the intermediate shaft 20, that is, the rotational position, with respect to the detected surface 60c of the detection shaft 60. Specifically, the direction in which the detected surface 60c faces is the same as the direction in which the bolt head housing portion 75 faces. Therefore, in the rotational position of the detection shaft 60, the bolt head receiving portion 75 of each coupling 70 is directed forward when the detected surface 60c is directed forward.

Therefore, in the front view of the fiber bundle bundling device 10, when the operator can visually confirm the bolt head receiving portion 75 of one coupling 70, the operator can visually confirm the bolt head receiving portions 75 of all the remaining couplings 70.

In order to connect the intermediate shafts 20 to each other by the coupling 70, the operation tool 90 is inserted into the operation hole 80c of the bolt head portion 80a after passing the bolt shaft portion 80b through the bolt head portion receiving portion 75 and inserting into the insertion hole 76. Further, the operation tool 90 needs to be operated to screw the bolt shaft portion 80b into the female screw 77. In order to release the coupling of the intermediate shafts 20 by the coupling 70, it is necessary to insert the operating tool 90 into the operating hole 80c of the bolt head portion 80a, and to remove the bolt shaft portion 80b from the female screw 77 by operating the operating tool 90.

If the bolt head housing portion 75 is not disposed in the predetermined operation range, the operator cannot operate the bolt 80 from the front surface side of the fiber bundle bundling device 10 using the operating tool 90. For example, the bolt head housing 75 is hidden by the rotary shaft 12. Therefore, as shown in fig. 4, one end of the operation range is a position opening toward the front below the rotation shaft 12 so that the bolt head receiving portion 75 is not hidden by the rotation shaft 12. The term "forward" is not limited to the horizontal direction, and includes a case where the operation tool 90 is slightly upward from the horizontal direction in a range where it does not interfere with the rotation shaft 12. As shown in fig. 5, the other end of the operation range is provided at a position where the bolt head housing portion 75 is opened obliquely downward toward the front. Further, the position shown in fig. 4 is shifted from the position shown in fig. 5 by 90 degrees. The other end of the operation range may be set appropriately within a range where the operation tool 90 does not interfere with a structure located below the operation tool 90, for example, a suction cleaning device. The operation range is a range in which the bolt 80 can be operated with respect to the coupling body 73 from the front of the fiber bundle bundling device 10.

< mounting jig >)

As shown in fig. 7, when the intermediate shafts 20 are coupled to each other by the coupling 70, the mounting jig 83 is used. The mounting jig 83 is used when aligning the position in the circumferential direction of the intermediate shaft 20 and mounting the coupling 70. The mounting jig 83 is used by being attached to the intermediate shaft 20. The mounting jig 83 includes a jig main 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 jig main body 84.

As shown in fig. 6, the jig main body 84 includes a mounting recess 84c extending in the axial direction of the jig main body 84. The mounting recess 84c is a recess extending in the axial direction of the jig main body 84. The mounting recess 84c opens at both ends of the clip main body 84 in the axial direction. Each of the first end face 84a and the second end face 84b is substantially C-shaped when the jig main body 84 is viewed in the axial direction. The jig main body 84 includes an opening edge 84d extending in the axial direction with the mounting recess 84c interposed therebetween. 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 jig main body 84. In the jig main body 84, a direction along the first end surface 84a and the second end surface 84b from one of the pair of opening edges 84d toward the other is set as a circumferential direction. The position that moves equidistantly in the circumferential direction from the pair of opening edges 84d is set as the intermediate position P.

The first protrusion 85 is provided at the first end surface 84a of the clamp body 84. The first protrusion 85 is disposed at a position closer to the one opening edge 84d than the intermediate position P on the first end surface 84a. The first projection 85 is cylindrical and projects axially from the first end surface 84a. The mounting recess 84c is mounted from above the shaft main body 20a, and the first projection 85 is brought into contact with the shaft groove 53. Thus, the mounting jig 83 can be positioned so that the mounting recess 84c opens downward, and relative rotation of the mounting jig 83 with respect to the intermediate shaft 20 is restricted.

The second protrusion 86 is provided at an intermediate position P of the second end surface 84b of the jig main body 84. The second protrusion 86 is plate-shaped. The plate thickness direction of the second protrusion 86 is the same as the width direction of the clamp body 84.

Method for using mounting jig

As shown in fig. 7 and 8, the mounting recess 84c is mounted from above the second coupling end 20c of one of the adjacent intermediate shafts 20. At this time, the first connecting end 20b and the second connecting end 20c of the other intermediate shaft 20 face each other. Then, the mounting jig 83 is mounted on the second connecting end portion 20c, and the first projection 85 is brought into contact with the surface where the shaft groove 53 is formed. Then, 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 located on top of the second end surface 84b, and the plate thickness direction of the second protrusion 86 becomes the front-rear direction of the spinning machine 100.

Next, as shown in fig. 9, the first coupling member 71 is disposed in front of the second protrusion 86, and the second coupling member 72 is disposed behind the second protrusion 86, so that the second protrusion 86 is sandwiched between the first coupling member 71 and the second coupling member 72. At this time, the second connecting end portion 20c and the first connecting end portion 20b are sandwiched by the first connecting member 71 and the second connecting member 72. Further, when the mating surface 74 of the first coupling member 71 is brought into contact with the front surface of the second protrusion 86, the first coupling member 71 can be positioned so that the bolt head receiving portion 75 of the first coupling member 71 faces forward. Further, when the mating surface 74 of the second coupling member 72 is brought into contact with the rear surface of the second protrusion 86, the second coupling member 72 can be positioned such that the female screw 77 of the second coupling member 72 faces rearward.

Further, one end surface in the axial direction of the first connecting member 71 and the second connecting member 72 is brought into contact with the second end surface 84 b. Then, the receiving recess 79 of the first coupling member 71 and the receiving recess 79 of the second coupling member 72 face each other, and the mating surface 74 of the first coupling member 71 and the mating surface 74 of the second coupling member 72 face each other. Accordingly, the insertion hole 76 of the first coupling member 71 and the female screw 77 of the second coupling member 72 are also opposed.

When the bolt shaft portion 80b inserted into the insertion hole 76 is screwed into the female screw 77 through the bolt head receiving portion 75, the first coupling member 71 and the second coupling member 72 can be coupled by the bolt 80. As a result, the coupling body 73 can sandwich the first coupling end portion 20b and the second coupling end portion 20c accommodated in the accommodating recess 79, and the intermediate shaft 20 can be coupled to each other by the coupling 70. By repeating this operation, the rotational positions of all the couplings 70 can be made uniform, and the intermediate shafts 20 can be coupled to each other.

< rotation position detecting section >)

As shown in fig. 1, the rotational position detecting portion 30 is disposed close to the outer tip 101. The rotational position detecting portion 30 faces the second end 60b of the detecting shaft 60. The rotational position detecting unit 30 is, for example, a proximity sensor. The rotational position detecting unit 30 detects the proximity of the detected surface 60c of the detection shaft 60 in a noncontact manner. The rotational position detecting section 30 outputs a detection signal every time the detected surface 60c is detected. The rotational position detecting unit 30 outputs a detection signal at one pulse interval when the detection shaft 60 rotates once. If the rotational speed of the intermediate shaft 20, that is, the rotational speed of the intermediate shaft driving motor 103 becomes high, the output interval of the detection signal of the rotational position detecting unit 30 becomes short, whereas if the rotational speed of the intermediate shaft 20, that is, the rotational speed of the intermediate shaft driving motor 103 becomes low, the output interval of the detection signal of the rotational position detecting unit 30 becomes long. Therefore, the detection signal output from the rotational position detecting portion 30 is rotational position information of the intermediate shaft 20. Accordingly, the rotational position detecting unit 30 detects the detected surface 60c to output rotational position information of the intermediate shaft 20.

As described above, in the rotational position of the detection shaft 60, the bolt head receiving portion 75 of each coupling 70 is directed forward when the detected surface 60c is directed forward. Therefore, at the timing when the rotational position detecting portion 30 outputs the detection signal, the bolt head receiving portion 75 of each coupling 70 is located at a position facing forward. That is, the rotational position of each coupling 70 is located in a position where the bolt head housing portion 75 is directed forward and within the operation range.

Control device

The control device 40 includes a processor, not shown, and a storage unit. Examples of the processor include a CPU (Central Processing Unit: central processing unit), a GPU (Graphics Processing Unit: graphics processing unit), and a DSP (Digital Signal Processor: digital signal processor). The storage unit includes a RAM (Random Access Memory: random access Memory) and a ROM (Read Only Memory). The storage unit stores program codes or instructions configured to cause the processor to execute processing. Storage, i.e., computer-readable media, includes all available media that can be accessed by a general purpose or special purpose computer. The control device 40 may be constituted by a hardware circuit such as an ASIC (Application Specific Integrated Circuit: application specific integrated circuit) or an FPGA (Field Programmable Gate Array: field programmable gate array). The control device 40 as a processing circuit may include one or more processors operating according to a computer program, one or more hardware circuits such as an ASIC, FPGA, or the like, or a combination thereof.

The control device 40 is inputted with a detection signal outputted from the rotational position detecting section 30, and controls driving of the intermediate shaft driving motor 103. The control device 40 outputs a drive signal to the intermediate shaft drive motor 103 to drive the intermediate shaft drive motor 103. By the driving of the intermediate shaft driving motor 103, the intermediate shaft 20 rotates and drives the fiber bundle bundling device 10.

An operation unit 41 is connected to the control device 40. Examples of the operation unit 41 include a dial, a physical button, and a touch panel. In the present embodiment, the operation unit 41 is a physical button. The operation unit 41 is operated to temporarily stop or completely stop the driving of the fiber bundle bundling device 10 and stop the driving of the intermediate shaft 20. The operation unit 41 outputs a stop command for stopping the driving of the intermediate shaft 20 to the control device 40. The operation unit 41 may be provided to the gear head 102 and the outer head 101, or may be provided to a host control device of the spinning machine 100, as long as it can perform an operation for stopping the driving of the intermediate shaft 20.

When the fiber bundle bundling device 10 is driven, a detection signal from the rotational position detecting unit 30 is periodically input to the control device 40. The control device 40 controls the rotational speed of the intermediate shaft drive motor 103 based on the detection signal.

When a stop command is output from the operation unit 41 and is input to the control device 40, the control device 40 switches the control of the intermediate shaft drive motor 103 from rotational speed control to position control. Specifically, when a stop command is input from the operation unit 41, the control device 40 controls the driving of the intermediate shaft 20 based on the detection signal input from the rotational position detection unit 30 so that the coupling 70 is positioned within the operation range when the rotation of the intermediate shaft 20 is stopped. Specifically, when a stop command is input, the control device 40 detects the rotational position of the intermediate shaft 20 based on the detection signal from the rotational position detection unit 30, and performs position control so as to stop the intermediate shaft 20 at a predetermined rotational position. More specifically, the control device 40 controls the driving of the intermediate shaft driving motor 103 so that the coupling 70 is stopped within the operation range.

In the present embodiment, as shown in fig. 4 and 5, the control device 40 controls the driving of the intermediate shaft driving motor 103 so that the bolt head housing portion 75 is located between a position where the bolt head housing portion 75 opens forward and a position where the bolt head housing portion 75 opens obliquely downward, that is, between one end and the other end of the operation range, below the rotary shaft 12.

[ action of the first embodiment ]

For example, in order to maintain the fiber bundle bundling device 10, after temporarily stopping the fiber bundle bundling device 10, replacement of the driving gear 21, the shaft bearing 52, the intermediate shaft 20, and the like may be performed.

The operator operates the operation unit 41. When a stop command from the operation unit 41 is input, the control device 40 switches the control of the intermediate shaft drive motor 103 from rotational speed control to position control. The control device 40 performs position control based on the detection signal from the rotational position detection unit 30 so as to stop the intermediate shaft 20 at a predetermined rotational position. Then, when the rotation of the intermediate shaft 20 is stopped, all the bolt head receiving portions 75 of the coupling 70 are located within the operation range. Accordingly, the operator can operate the bolt head 80a stored in the bolt head storage 75 from the front of the fiber bundle bundling device 10 by using the operating tool 90. Then, the bolt 80 is operated by the operating tool 90, the bolt 80 is pulled out from the female screw 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 body 73 can be separated into the first coupling member 71 and the second coupling member 72, and therefore the coupling of the intermediate shafts 20 by the coupling 70 can be released. The same process is also performed for the other coupling 70. Accordingly, the intermediate shaft 20 can be moved in the longitudinal direction X, and replacement of the drive gear 21, the shaft bearing 52, the intermediate shaft 20, and the like can be performed.

After the maintenance is completed, the intermediate shaft 20 after the movement is returned to the original position, and the intermediate shafts 20 are coupled again by the coupling 70. Since the intermediate shaft 20 is stopped with the detected surface 60c facing forward, the bolt head receiving portion 75 faces forward for the coupling 70 other than the removed coupling 70.

The coupling 70 is attached to the intermediate shaft 20 using the attachment jig 83, and the intermediate shafts 20 are coupled to each other. At this time, the operator can operate the operating tool 90 from the front of the fiber bundle bundling device 10. Then, the bolt 80 is operated by the operating tool 90, and the bolt shaft portion 80b is inserted into the insertion hole 76 through the bolt head receiving portion 75, and screwed into the female screw 77. As a result, the bolts 80 can be screwed into the coupling main body 73, and the intermediate shafts 20 can be coupled to each other by the coupling 70.

According to the first embodiment, the following effects can be obtained. (1-1) when the operation unit 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 to stop the driving of the fiber bundle bundling device 10. Then, when the rotation of the intermediate shaft 20 is stopped, the coupling 70 is positioned within the operation range. Therefore, when the driving of the fiber bundle collecting device 10 is stopped, the coupler 70 can be positioned at a position where the bolt 80 is easy to operate. As a result, the operation of the bolt 80 with respect to the coupling body 73 can be easily performed after the driving of the fiber bundle collecting device 10 is stopped.

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

(1-3) the surface 60c to be detected is provided on the shaft 60 for detection. For example, when the other intermediate shaft 20 having the surface to be detected is connected to the intermediate shaft 20 closest to the outer end 101, the fiber bundle collecting device 10 can be miniaturized in the longitudinal direction X.

(1-4) if the fiber bundle bundling device 10 is stopped by the control device 40, the coupling 70 can be positioned in the operation range. Therefore, when the fiber bundle collecting device 10 is stopped, the bolt 80 can be operated with respect to the coupling body 73. Therefore, in addition to maintenance of the fiber bundle concentrating device 10, the bolt 80 can be operated even when the operation of the fiber bundle concentrating device 10 is stopped. Therefore, when maintenance is required during the stop of the operation of the fiber bundle collecting device 10, maintenance can be performed without rotating the intermediate shaft 20 again.

(1-5) by using the mounting jig 83, the operation of aligning the rotational position of the coupling 70 is easily performed.

(second embodiment)

Next, a second embodiment of a fiber bundle bundling device for a spinning machine will be described with reference to fig. 11 to 14. In the second embodiment, the same parts as those in the first embodiment will be omitted from detailed description.

As shown in fig. 11, the spinning machine 100 includes a spindle driving device 111, a lifting unit 120, and a draft device 130. The spindle driving device 111 drives the spindle 110 to wind the fiber bundle F bundled by the fiber bundle bundling device 10. The spindle driving device 111 includes a spindle driving motor 112, a driving pulley 113, a driven pulley 114, and a radial belt 115 wound around both pulleys 113 and 114. Spindle 110 is driven by spindle drive motor 112. Spindle drive motor 112 is a variable speed motor driven by inverter 116. The control device 40 controls the inverter 116.

The lifting unit 120 lifts and lowers the spindle 110. The lifting unit 120 includes a main shaft 121, a pair of endless rails 122, a pair of guide plates angle steel (not shown) including a pair of guide hooks 123, a lifting rod 124, a nut body 125, a lifting motor 126, and a driver 127. The total shaft 121 is rotatably disposed along the spindle row. A helical gear 121a is formed on the main shaft 121. The lift motor 126 is coupled to the main shaft 121 via a gear mechanism, not shown. The lift bar 124 supports the annular rail 122 having the ring 122 a. A screw portion 124a is formed at a lower portion of the lifting lever 124. The nut body 125 is screwed with the screw portion 124a and meshed with the helical gear 121a.

When the lift motor 126 rotates in both the forward and reverse directions to rotate the main shaft 121, the helical gear 121a, the nut body 125, and the screw portion 124a raise and lower the endless rail 122. The driver 127 drives the lifting motor 126. The control device 40 controls the driver 127.

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 driving motor 112 and the lifting motor 126. The lifting of the endless rail 122 is repeated by driving the lifting unit 120 by the driving of the lifting motor 126, and the spindle 110 is rotated by driving the spindle driving device 111 by the driving of the spindle driving motor 112. Accordingly, the fiber bundle F passing through the fiber bundle bundling device 10 is wound around the bobbin B supported by the spindle 110.

The drawing device 130 draws the fiber bundle F. The draft device 130 includes a front roller 131, a first draft motor 132, an intermediate roller 133, a second draft motor 134, and a rear lower roller 135. The rear lower roller 135 is coupled to the intermediate roller 133 via a gear train 136. The intermediate roller 133 includes a apron 133a. The first driver 132a drives the first drawing motor 132. The second driver 134a drives the second drawing motor 134. The control device 40 controls the first driver 132a and the second driver 134a. The first drawing motor 132 and the second drawing motor 134 drive the drawing device 130. The draft device 130 is driven by driving the first draft motor 132 and the second draft motor 134.

The fiber bundle collecting device 10 is disposed on the front side of the draft device 130. The fiber bundle bundling device 10 bundles the fiber bundle F drawn by the drawing device 130. The intermediate shaft driving motor 103 drives the fiber bundle bundling device 10. The intermediate shaft drive motor driver 128 drives the intermediate shaft drive motor 103. The control device 40 controls the intermediate shaft driving motor driver 128.

The spinning machine 100 includes an input unit 44. As shown in fig. 12, the input unit 44 is provided with a physical button type operation unit 41 and a start button 46. The operation unit 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 stopped spinning machine 100.

The display unit 45 is disposed in the input unit 44. The display section 45 displays an operation screen IM. The operation screen IM functions as a mode setting unit. The operation screen IM is a screen on which an operator performs an operation of selecting the first maintenance mode M1 and the second maintenance mode M2 as the maintenance mode of the spinning machine 100. ON button B1 for selecting the first maintenance mode M1 and OFF button B2 for setting the first maintenance mode M1 to non-selected are displayed ON the operation screen IM.

When the ON button B1 is operated and the first maintenance mode M1 is selected, the control device 40 sets the first maintenance mode M1 to be executable. In the case where the OFF button B2 is operated without selecting the first maintenance mode M1, the control device 40 sets the normal stop mode M3 to be executable. Therefore, the operation screen IM as the mode setting section selects and executable sets the first maintenance mode M1 or the normal stop mode M3.

ON button B3 for selecting second maintenance mode M2 and OFF button B4 for setting second maintenance mode M2 to non-selected are displayed ON operation screen IM. When the ON button B3 is operated and the second maintenance mode M2 is selected, the control device 40 sets the second maintenance mode M2 to be executable. Therefore, the second maintenance mode M2 is selected and set executable on the operation screen IM as the mode setting unit. When the OFF button B4 is operated, the control device 40 sets the second maintenance mode M2 to OFF. Therefore, the second maintenance mode M2 is selected and set executable on the operation screen IM as the mode setting unit.

The parameter input unit 47 is set in the input unit 44. The parameter input unit 47 is a part for an operator to input spinning parameters of the spinning machine 100. The parameter input section 47 is a dial type. The parameter input unit 47 may be displayed on the operation screen IM or may be a physical button other than a dial.

As shown in fig. 11, at the time of operation of the spinning machine 100, the control device 40 controls the spindle drive motor 112 via the inverter 116 and controls the respective drivers 127, 128, 132a, 134a to control the driving of the respective motors 103, 126, 132, 134. During operation of the spinning machine 100, the control device 40 synchronously controls the fiber bundle bundling device 10, the spindle driving device 111, the lifting unit 120, and the draft device 130 according to the spinning parameters inputted from the parameter input unit 47. Specifically, the control device 40 synchronously controls the motors 103, 112, 126, 132, 134 according to the spinning parameters input from the parameter input section 47. Accordingly, the spinning machine 100 includes a spindle drive motor 112, and the spindle drive motor 112 drives a spindle 110 for winding up the fiber bundle F bundled by the fiber bundle bundling device 10. In the present embodiment, the spinning machine 100 includes: a first drawing motor 132 and a second drawing motor 134 of the drawing device 130 for drawing the fiber bundle F, the spindle driving motor 112, and a lifting motor 126 of the lifting unit 120 for lifting and lowering the spindle 110.

The control device 40 includes an operation screen IM as the mode setting unit, and includes a synchronization control unit 401, a detection speed setting unit 402, and a display control unit 403. The display control unit 403 causes the display unit 45 to display the operation screen IM.

The synchronous control unit 401 synchronously controls the intermediate shaft drive motor 103, the spindle drive motor 112, the lift motor 126, the first draft motor 132, and the second draft motor 134. Further, "synchronization" does not make the rotational speeds of the motors 103, 112, 126, 132, 134 all the same, but makes the speed ratio constant. That is, "synchronously controlled" means that the synchronous control unit 401 controls the intermediate shaft drive motor 103, the spindle drive motor 112, the lift motor 126, the first drawing motor 132, and the second drawing motor 134 so as to be capable of spinning the fiber bundle F based on the spinning parameters input from the parameter input unit 47.

In addition, when the first maintenance mode M1 is executed, the synchronization control section 401 synchronously drives the fiber bundle bundling device 10 and the spindle driving device 111 so as to match the spindle driving motor 112 with the intermediate shaft driving motor 103 in order to synchronously drive them. The synchronization control unit 401 controls the intermediate shaft drive motor driver 128 and the inverter 116 to synchronize the spindle drive motor 112 with the intermediate shaft drive motor 103.

The detection speed setting unit 402 sets the detection speed V2c of the intermediate shaft drive motor 103 and the detection speed V2s of the spindle drive motor 112 in the synchronization control unit 401. Each of the detected speeds V2c, V2s is a constant rotation speed set in advance. The detected speed V2c of the intermediate shaft driving 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 driving motor 103 at the time when the stop command is input from the operation unit 41. The detected speed V2s of the spindle drive motor 112 is set to a sufficiently small value so as to be a rotation speed lower than the rotation speed V1s of the spindle drive motor 112 at the time of inputting the stop command from the operation unit 41. The detected speeds V2c and V2s are low-speed rotational speeds at which the intermediate shaft drive motor 103 and the spindle drive motor 112 can be quickly stopped. The detected speed V2s of the spindle drive motor 112 is preferably a low speed. An example of the detected speed V2s of the spindle drive motor 112 is the lowest rotational speed of the spindle drive motor 112 that can be controlled by the inverter 116.

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 driving motor 103 is a rotation speed at which the intermediate shaft 20 can be stopped at a predetermined rotation position by a slight rotation after outputting the detection signal of the rotation position detecting unit 30. The predetermined rotational position is a position where the coupling 70 is stopped within the operation range.

For example, when the rotational position detecting portion 30 detects an edge on the leading side in the rotational direction out of both edges of the detected surface 60c in the rotational direction of the intermediate shaft 20, the rotational position detecting portion 30 outputs a detection signal. When the intermediate shaft 20 rotates at the detection speed V2c, after the detection signal is output, the intermediate shaft 20 stops after the edge on the downstream side in the rotation direction of the detected surface 60c passes through the rotation position detecting section 30.

The detected speed V2c of the intermediate shaft drive motor 103 and the detected speed V2s of the spindle drive motor 112 are stored in a storage unit of the control device 40.

< first maintenance mode >)

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

ON the operation screen IM of the display unit 45, when the ON button B1 of the first maintenance mode M1 is operated, the control device 40 is made to set the first maintenance mode M1 to be executable. When the first maintenance mode M1 is set to be executable, the detection speed setting unit 402 obtains 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 unit, and sets them in the synchronization control unit 401.

In the first maintenance mode M1, the synchronization control section 401 drives each of the intermediate shaft drive motor 103 and the spindle drive motor 112 such that each of the drive intermediate shaft drive motor 103 and the spindle drive motor 112 is synchronously decelerated from the rotational speed in the operation to the detection speeds V2c, V2s, and after the deceleration, the intermediate shaft drive motor 103 and the spindle drive motor 112 are synchronously driven at the detection speeds V2c, V2 s.

In the first maintenance mode M1, the synchronization control unit 401 stops driving of each of the intermediate shaft driving motor 103 and the spindle driving motor 112 at the time when the rotational position detecting unit 30 detects the detected surface 60 c. In the first maintenance mode M1, when the driving of the intermediate shaft driving motor 103 is stopped by the synchronization control unit 401, the driving of the fiber bundle collecting device 10 is stopped, and the intermediate shaft 20 slightly rotates due to inertia. When the rotation of the intermediate shaft 20 is stopped, the coupling 70 is positioned at a position where the bolt 80 is easy to operate. I.e. the coupling 70 is located within the operating range.

When the spindle drive motor 112 is stopped by the synchronization control unit 401, the spindle 110 slightly rotates and stops due to inertia. Therefore, if the first maintenance mode M1 is executed, the intermediate shaft 20 is stopped and the spindle 110 immediately follows it in such a manner that the coupling 70 is located within the operation range.

< normal stop mode >)

The normal stop mode M3 is executed during the operation of the spinning machine 100. In the normal stop mode M3, when a stop command is output from the operation unit 41, the synchronization control unit 401 synchronously decelerates each of the intermediate shaft drive motor 103 and the spindle drive motor 112. The synchronization control unit 401 controls the intermediate shaft driving motor driver 128 and controls the inverter 116. When the inverter 116 is controlled to stop the spindle drive motor 112, the synchronization control unit 401 controls the intermediate shaft drive motor driver 128 to stop the intermediate shaft drive motor 103. That is, in the normal stop mode M3, the control device 40 causes the intermediate shaft drive motor 103 to follow the spindle drive motor 112, and causes the spindle drive motor 112 and the intermediate shaft drive motor 103 to stop. On the operation screen IM of the display unit 45, when the OFF button B2 of the first maintenance mode M1 is operated, the control device 40 sets the normal stop mode M3 to be executable.

Fig. 13 graphically shows the rotational speed of spindle 110 and intermediate shaft 20 in normal stop mode M3 as a function of time. The vertical axis of the graph represents the spindle 110 and the rotational speed [ rpm ] of the intermediate shaft 20, and the horizontal axis of the graph represents the time t. In addition, the solid line graph of fig. 13 is spindle 110. The graph of fig. 13 with a single-dot chain line is the intermediate shaft 20.

As shown in fig. 13, in the normal stop mode M3, when the operation unit 41 is operated and a stop command is input at time t1 during the operation of the spinning machine 100, the synchronization control unit 401 controls the inverter 116 so that the spindle drive motor 112 is decelerated from the rotational speed V1s at time t 1. The synchronization control unit 401 controls the intermediate shaft drive motor driver 128 so that the intermediate shaft drive motor 103 is decelerated from the rotational speed V1c at time t 1. The rotational speed of spindle 110 and the rotational speed of intermediate shaft 20 then become gradually smaller. The synchronization control unit 401 controls the intermediate shaft drive motor driver 128 and the inverter 116 so as to stop the intermediate shaft drive motor 103 at the same time or substantially the same time as the stop of the spindle drive motor 112. Thus, 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, when the rotation of the spindle 110 is stopped, the rotation of the intermediate shaft 20 is caused to follow the rotation of the spindle 110 so that the fiber bundle F is not cut.

[ action of the second embodiment ]

Fig. 14 graphically illustrates the rotational speed of spindle 110 and intermediate shaft 20 in first maintenance mode M1 as a function of time. The vertical axis of the graph represents the spindle 110 and the rotational speed [ rpm ] of the intermediate shaft 20, and the horizontal axis of the graph represents the time t. In addition, the solid line graph of fig. 14 is spindle 110. The single-dot chain line chart of fig. 14 is the intermediate shaft 20.

Then, as shown in fig. 14, in the spinning machine 100 in which the first maintenance mode M1 is set to be executable on the operation screen IM, when a stop command is output from the operation unit 41 at time t1 during the operation, the synchronization control unit 401 controls the inverter 116 so that the spindle drive motor 112 is decelerated from the rotational speed V1s at time t 1. The synchronization control unit 401 controls the intermediate shaft drive motor driver 128 so that the intermediate shaft drive motor 103 is decelerated from the rotational speed V1c at time t 1. The rotational speed of spindle 110 and the rotational speed of intermediate shaft 20 then gradually decrease. At this time, the synchronous control unit 401 may synchronously decelerate the other motors in addition to the intermediate shaft driving motor 103 and the spindle driving motor 112.

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 become gradually larger. Then, when the rotational speeds V1c and V1s of the intermediate shaft drive motor 103 and the spindle drive motor 112 are each decelerated to the detection speeds V2c and V2s of the 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 V2 s. Then, the intermediate shaft drive motor 103 and the spindle drive motor 112 rotate at the respective detection speeds V2c, V2s and at a constant rotation speed.

After the intermediate shaft drive motor 103 starts driving at the detection speed V2c, if a detection signal from the rotational position detection unit 30 is input to the control device 40 for the first time at time t2, the synchronization control unit 401 synchronously stops the intermediate shaft drive motor 103 and the spindle drive motor 112. Then, the intermediate shaft drive motor 103 and the spindle drive motor 112 slightly rotate due to inertia, and then stop. The intermediate shaft 20 and the spindle 110 also slightly rotate and then stop. Then, when the rotation of the intermediate shaft 20 is stopped, the rotation of the spindle 110 is stopped, and the coupling 70 is stopped so as to be positioned within the operation range.

According to the second embodiment, the following effects can be obtained. (2-1) when the first maintenance mode M1 is executed, the intermediate shaft 20 can be stopped based on the rotational position of the intermediate shaft 20, the coupling 70 can be positioned within the operation range, and the spindle 110 can be stopped following the intermediate shaft 20. Further, since the intermediate shaft drive motor 103 and the spindle drive motor 112 are stopped from decelerating to the detection speeds V2c and V2s, the rotation due to 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 respect to the spindle 110 can be reduced, and therefore, the fiber bundle F can be prevented from being cut.

(2-2) the detection speeds V2c, V2s are set to constant speeds. Therefore, even if the detection signal is output from the rotational position detection unit 30 at any timing during the driving at the detection speeds V2c and V2s, the intermediate shaft driving motor 103 and the spindle driving motor 112 can be stopped by rotating slightly at a constant speed. For example, when the detection signal is output during the gradual deceleration of the intermediate shaft drive motor 103 and the spindle drive motor 112, the deviation in the amount of rotation of the intermediate shaft 20 and the spindle 110 can be eliminated based on the timing of the detection signal output. As a result, the first maintenance mode M1 can be suppressed, and the fiber bundle F can be suppressed from being cut.

(2-3) the detected speeds V2c, V2s are rotational speeds at which the inertial intermediate shaft 20 is stopped by hardly rotating 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.

(2-4) an operation screen IM as a mode setting section, by operation of the operation screen IM, the first maintenance mode M1 or the normal stop mode M3 can be set to be executable. Therefore, for example, when maintenance of the fiber bundle collecting 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 collecting device 10 is required, the spinning machine 100 can be stopped in the first maintenance mode M1. Therefore, the method of stopping the spinning machine 100 can be selected according to the state of the fiber bundle bundling device 10, and thus the operator's demand for using the spinning machine 100 can be satisfied.

(third embodiment)

Next, a third embodiment of the fiber bundle bundling device for a spinning machine will be described with reference to fig. 15. In the third embodiment, the same parts as those in the first and second embodiments will be omitted from detailed description.

In the third embodiment, the second maintenance mode M2 will be described.

< second maintenance mode >)

The second maintenance mode M2 is executed during the stop of the spinning machine 100. That is, the second maintenance mode M2 is executed when maintenance of the fiber bundle bundling device 10 is required. The second maintenance mode M2 is a mode in which the coupling 70 is positioned within the operation range when the spinning machine 100 is stopped and the rotation of the intermediate shaft 20 is stopped after the spinning machine 100 is started and stopped.

ON the operation screen IM of the display unit 45, when the ON button B3 of the second maintenance mode M2 is operated, the control device 40 sets the second maintenance mode M2 to be executable. When 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.

As shown in fig. 15, in the third embodiment, the detected speeds V2c and V2s are the rotational speeds of the intermediate shaft drive motor 103 and the spindle drive motor 112, respectively, and are the rotational speeds set for the intermediate shaft drive motor 103 and the spindle drive motor 112, respectively. The detected speeds V2c and V2s are set to sufficiently small values so as to be lower than the rotational speeds V1c and V1s at the time of inputting the stop command from the operation unit 41 in the spinning machine 100 during operation.

In the second maintenance mode M2, when the start button 46 is operated at time ts, an execution instruction of the second maintenance mode M2 is input to the control device 40. Then, the synchronization control section 401 starts the intermediate shaft drive motor 103 and the spindle drive motor 112, and drives them in synchronization. After the start of the spinning machine 100, the synchronization control unit 401 synchronizes the intermediate shaft drive motor 103 and the spindle drive motor 112 and drives them at the detection speeds V2c and V2 s. In the second maintenance mode M2, the synchronization control unit 401 stops driving of each of the intermediate shaft driving motor 103 and the spindle driving motor 112 at a time t2 when the rotational position detection unit 30 detects the detected surface 60 c. In the second maintenance mode M2, when the driving of the intermediate shaft driving motor 103 is stopped by the synchronization control unit 401, the driving of the fiber bundle collecting device 10 is stopped, and the intermediate shaft 20 slightly rotates due to inertia. When the rotation of the intermediate shaft 20 is stopped, the coupling 70 is positioned at a position where the bolt 80 is easy to operate. I.e. the coupling 70 is located within the operating range.

When the spindle drive motor 112 is stopped by the synchronization control unit 401, the spindle 110 slightly rotates and stops due to inertia. Therefore, when the second maintenance mode M2 is executed, the intermediate shaft 20 is stopped and the spindle 110 immediately follows to be stopped so that the coupling 70 is positioned within the operation range.

Fig. 15 graphically illustrates the relationship between the rotational speed of the spindle 110 and the intermediate shaft 20 in the second maintenance mode M2 and time. The vertical axis of the graph represents the spindle 110 and the rotational speed [ rpm ] of the intermediate shaft 20, and the horizontal axis of the graph represents the time t. In addition, the solid line graph of fig. 15 is spindle 110. The graph of fig. 15 with a single-dot chain line is the intermediate shaft 20.

[ action of the third embodiment ]

Then, as shown in fig. 15, in the spinning machine 100 after stopping in the normal stop mode M3, when the second maintenance mode M2 is set to be executable on the operation screen IM, the start button 46 is operated at a time ts to input an execution instruction of the second maintenance mode M2. Then, the synchronization control section 401 synchronously drives the intermediate shaft drive motor 103 and the spindle drive motor 112, and accelerates to the detection speeds V2c, V2s with a constant acceleration. When 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.

After the intermediate shaft drive motor 103 and the spindle drive motor 112 start driving at the detection speeds V2c and V2s, if the detection signal from the rotational position detection unit 30 is input to the control device 40 for the first time at time t2, the synchronization control unit 401 synchronizes the intermediate shaft drive motor 103 and the spindle drive motor 112 and stops driving. Then, the intermediate shaft drive motor 103 and the spindle drive motor 112 slightly rotate due to inertia, and then stop. The intermediate shaft 20 and the spindle 110 also stop after rotating slightly due to inertia. When the rotation of the intermediate shaft 20 is stopped, the rotation of the spindle 110 is stopped, and the coupling 70 is stopped so as to be positioned within the operation range.

According to the third embodiment, the following effects can be obtained.

(3-1) the coupling 70 can be positioned within the operation range by performing the second maintenance mode M2. Therefore, even when maintenance of the fiber bundle collecting device 10 is to be performed during stop of the spinning machine 100, the intermediate shaft 20 can be positioned at a position where maintenance is easy by executing the second maintenance mode M2. Further, since the difference in the relative rotational speed with respect to the spindle 110 can be reduced even when the intermediate shaft 20 is stopped at a desired position, the fiber bundle F can be prevented from being cut when the second maintenance mode M2 is executed.

Each embodiment can be modified as follows. The embodiments and the following modifications can be combined with each other within a range that is not technically contradictory.

As shown in fig. 16, the detected surface 71c may be provided on the coupling 70. The surface to be detected 71c may be provided by forming a flat surface on the outer surface of the first coupling member 71, or may be provided by forming a flat surface on the outer surface of the second coupling member 72.

The detected portion may not be the detected surface 60 c. For example, grooves and holes may be provided in the intermediate shaft 20 and the detection shaft 60. In short, as long as the rotational position of the intermediate shaft 20 can be detected by the rotational position detecting portion 30, the type of the rotational position detecting portion 30 and the type of the detected portion can be changed.

In the case where the fiber bundle collecting device 10 includes two intermediate shafts 20, the coupling 70 may be one.

The coupling body 73 of the coupling 70 may be divided by the first coupling member 71 and the second coupling member 72. For example, the coupling body 73 may have a C shape when viewed from the axial direction.

The detection shaft 60 may be changed to the intermediate shaft 20. In this case, a portion to be detected is provided at the second connecting end portion 20c of the intermediate shaft 20. The position of the detected portion in the longitudinal direction X may be set arbitrarily as long as it is an end portion, a center, or the like of the longitudinal direction X. In this case, the position of the rotational position detecting portion 30 is changed according to the position of the detected portion.

The operating range may also be changed as appropriate. For example, the bolt head housing 75 may be rotated 45 degrees downward from the position shown in fig. 4. In short, the operating range may be changed appropriately as long as the operator can perform the operation of the bolt 80.

The number of the fiber bundle bundling means 10 and the number of the intermediate shafts 20 may be appropriately changed. In this case, the spinning machine 100 may include an intermediate head according to the number of the fiber bundle collecting devices 10.

The fiber bundle bundling device 10 may be provided with a plurality of detected parts, in which case the rotational position detecting part 30 may be arranged according to each detected part. For example, the rotational positions of the plurality of couplings 70 are made different. Further, the detected portions are provided in each intermediate shaft 20 or the coupling 70, and the rotational position detecting portion 30 is provided in accordance with each detected portion.

The axial length of the first connecting end portion 20b and the second connecting end portion 20c of the intermediate shaft 20 may be appropriately changed.

As long as the rotational position detecting portion 30 can detect the detected surface 60c, the supporting method of the detecting 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 appropriately changed.

In the first maintenance mode M1 and the second maintenance mode M2, the timing of stopping the driving of the intermediate shaft driving motor 103 and the spindle driving motor 112 during the driving at the detection speeds V2c and V2s may be changed arbitrarily, instead of when the detected surface 60c is detected for the first time by the rotational position detecting unit 30. For example, the rotation position detecting unit 30 may detect the detected surface 60c a second time.

In the spinning machine 100, the draft device 130 and the lifting unit 120 can be driven by driving the spindle driving motor 112. In this case, the draft device 130 does not include the first draft motor 132 and the second draft motor 134, and the elevating unit 120 does not include the elevating motor 126.

Claims (6)

1. A fiber bundle bundling device for a spinning machine is characterized by comprising:

a cotton collecting unit having a conveying bottom roller provided on a rotating shaft and conveying a fiber bundle, a suction portion for applying a suction action to the fiber bundle, a breathable apron rotating along the suction portion, and a conveying upper roller rotating together with the conveying bottom roller in contact with the breathable apron via the breathable apron, and bundling the drafted fiber bundle;

a plurality of intermediate shafts that rotate the rotary shaft and are aligned in an axial direction of the intermediate shafts;

an intermediate shaft driving motor for driving the intermediate shaft; and

a coupling coupled to the intermediate shaft adjacent to each other in the axial direction and rotated integrally with the intermediate shaft,

the coupling connects the intermediate shafts by fastening a coupling body provided between the end portions of the adjacent intermediate shafts by bolts,

the fiber bundle bundling device further comprises:

A detected part provided in the intermediate shaft or the coupling and configured to detect a rotational position of the intermediate shaft;

a rotational position detecting unit configured to output rotational position information of the intermediate shaft by detecting the detected unit;

a control device that receives the rotational position information output from the rotational position detecting unit and controls the intermediate shaft driving motor; and

an operation unit that outputs a stop command for stopping the driving of the intermediate shaft driving motor to the control device,

the range in which the rotation position of the coupling can be operated from the front with respect to the coupling body is set as the operation range of the coupling,

when the stop command is input from the operation unit, the control device controls the drive of the intermediate shaft drive motor so that the coupling is positioned within the operation range when the rotation of the intermediate shaft is stopped, based on the rotation position information input from the rotation position detection unit.

2. The fiber bundle bundling device for spinning machine according to claim 1, wherein,

the fiber bundle bundling device is provided with a plurality of the couplers, and the rotational positions of all the plurality of the couplers are aligned.

3. The fiber bundle bundling device for spinning machine according to claim 1 or 2, wherein,

the intermediate shaft at one end of the plurality of intermediate shafts is connected to a detection shaft which rotates as an intermediate shaft, and the detection shaft has a shorter axial length than the intermediate shaft, and the detection section is provided on the detection shaft.

4. The fiber bundle bundling device for spinning machine according to claim 1 or 2, wherein,

the spinning machine includes a spindle driving motor for driving a spindle for winding the fiber bundle bundled by the fiber bundle bundling device,

the control device includes:

a synchronization control unit that synchronously drives the intermediate shaft drive motor and the spindle drive motor;

a detection speed setting unit that sets a detection speed, which is a rotation speed of each of the intermediate shaft drive motor and the spindle drive motor, which is a rotation speed set for each of the intermediate shaft drive motor and the spindle drive motor, and which is a rotation speed lower than the rotation speed at the time of inputting the stop command from the operation unit; and

A mode setting unit configured to set a first maintenance mode in which the coupling is located within the operation range to be executable when the spinning machine is stopped and the rotation of the intermediate shaft is stopped during operation,

when the first maintenance mode is set to be executable by the mode setting unit, the stop command is input from the operation unit during the operation of the spinning machine,

the synchronization control unit drives each of the intermediate shaft drive motor and the spindle drive motor so as to be synchronously decelerated to the detection speed, and synchronously drives the intermediate shaft drive motor and the spindle drive motor at the detection speed, and stops driving of each of the intermediate shaft drive motor and the spindle drive motor at a timing when the rotation position detection unit detects the detected portion.

5. The fiber bundle bundling device for spinning machine according to claim 1 or 2, wherein,

the spinning machine includes a spindle driving motor for driving a spindle for winding the fiber bundle bundled by the fiber bundle bundling device,

the control device includes:

a synchronization control unit that synchronously drives the intermediate shaft drive motor and the spindle drive motor;

A detection speed setting unit that sets a detection speed, which is a rotation speed of each of the intermediate shaft drive motor and the spindle drive motor, which is a rotation speed set for each of the intermediate shaft drive motor and the spindle drive motor, and which is a rotation speed lower than the rotation speed at the time of inputting the stop command from the operation unit; and

a mode setting unit configured to set a second maintenance mode for enabling the coupling to be positioned within the operation range when the spinning machine is stopped and the rotation of the intermediate shaft is stopped after the spinning machine is started while the spinning machine is stopped,

when the second maintenance mode is set to be executable by the mode setting unit, when an execution instruction of the second maintenance mode is input to the spinning machine that is stopped,

the synchronization control unit synchronously drives the intermediate shaft drive motor and the spindle drive motor at the detection speed, and stops driving of the intermediate shaft drive motor and the spindle drive motor at a timing when the rotational position detection unit detects the detected portion.

6. A fiber bundle bundling device for spinning machine according to claim 4, wherein,

The mode setting unit sets a normal stop mode in which the spindle drive motor and the intermediate shaft drive motor are stopped by causing the intermediate shaft drive motor to follow the spindle drive motor, to be executable.