JP2021127535A - Spinning machine and spinning method - Google Patents

Abstract

To provide a spinning machine and a spinning method capable of improving work efficiency.SOLUTION: A spinning machine 1 includes: a plurality of spinning units 2; a spinning cart 3 that is movable to the working position for each of the plurality of spinning units 2 and performs at least a part of the splicing operation to make a yarn Y continuous when the yarn Y is split between an air spinning unit 7 and a winder 13; and a spinning cart control unit 31 that controls the operation of the spinning cart 3. The control unit 31 causes the spinning cart 3 to perform the splicing operation in a first mode in one spinning unit 2 among multiple spinning units 2, and causes the spinning cart 3 to perform the splicing operation in a second mode in which the working time is different from the first mode in other spinning units 2 different from the one spinning unit 2.SELECTED DRAWING: Figure 1

Description

One aspect of the present invention relates to a spinning machine and a spinning method.

The spinning machine described in Patent Document 1 includes a plurality of spinning units, a bogie that travels along an arrangement direction of the plurality of spinning units, and a control unit that controls the operation of the bogie. The bogie has a thread splicing device for splicing the first thread from the spinning device and the second thread drawn from the package of the winding device, and a first thread that captures the first thread and guides it to the thread splicing device. It has a catching device and a second catching device that catches the second yarn and guides it to the yarn splicing device.

Japanese Unexamined Patent Publication No. 2018-53373

Each of the plurality of spinning units may have different operating conditions due to the spinning conditions of the yarn, the operating environment (arranged position, etc.), individual differences of the units, and the like. Therefore, when the yarn splicing operation is uniformly performed for all the spinning units under the same control, even if the yarn splicing is successful in one spinning unit, the yarn splicing may fail in the other spinning units. If the thread splicing fails, the work time is extended, the thread is wasted, and the work by the operator is required. Therefore, failure of thread splicing reduces work efficiency.

One aspect of the present invention is to provide a spinning machine and a spinning method capable of improving work efficiency.

The spinning machine according to one aspect of the present invention has a spinning device that twists a fiber bundle to generate threads and a winding device that winds the threads generated by the spinning device to form a package. It is provided so that it can be moved to the working position for each of the plurality of spinning units and the plurality of spinning units, and when the yarn is in a split state between the spinning device and the winding device, the yarn is in a continuous state. The spinning unit includes an automatic machine that executes at least a part of the thread splicing operation and a control unit that controls the operation of the automatic machine. The automatic machine is made to execute the yarn splicing operation in the first mode, and in another spinning unit different from one spinning unit, the automatic machine is made to execute the yarn splicing operation in the second mode in which the working time is different from the first mode. ..

In the spinning machine according to one aspect of the present invention, the control unit makes the working time of the yarn splicing operation different between one spinning unit and the other spinning unit. As a result, in the spinning machine, the automatic machine can execute the yarn splicing operation suitable for each spinning unit according to the operating condition of each spinning unit. For example, when yarn breakage is more likely to occur in another spinning unit than in one spinning unit, the yarn breakage is caused by lengthening the time for catching the yarn in the other spinning unit and slowly pulling out the yarn. Can be reduced. Therefore, in the spinning machine, it is possible to avoid the failure of the yarn splicing. As a result, the working efficiency of the spinning machine can be improved.

In one embodiment, the automatic machine captures the yarn splicing apparatus for splicing the first yarn from the spinning apparatus and the second yarn drawn from the package of the winding apparatus, and the first yarn. It has a first catching device that guides the first yarn to the yarn splicing device and a second catching device that catches the second yarn and guides the second yarn to the yarn splicing device, and the control unit operates the yarn splicing operation. In, after starting the operation of the second capture device, the operation of the first capture device is started, and in the first mode and the second mode, after the second capture device starts the operation, the first capture device is started. The time until operation may be different. Depending on the spinning unit, it is assumed that the first yarn and the second yarn are entangled during the execution of the yarn splicing operation. When the first thread and the second thread are entangled, the tension of the second thread becomes high, and thread breakage of the second thread may occur. Therefore, in the spinning machine, it is possible to avoid entanglement between the first yarn and the second yarn by shifting the timing of operating the first catching device that captures the first yarn in the first mode and the second mode. It will be possible. As a result, in the spinning machine, the occurrence of yarn breakage of the second yarn can be reduced, so that the work efficiency can be improved.

In one embodiment, in the first mode, the control unit starts the operation of the first catching device before the second catching device guides the second yarn to the yarn splicing device, and in the second mode, the control unit starts the operation of the first catching device. 2 The operation of the first catching device may be started after the catching device guides the second thread to the thread joining device. In this configuration, it is possible to more reliably avoid the entanglement of the first yarn and the second yarn.

In one embodiment, the spinning machine further comprises a drive that rotates the package in the unwinding direction, which is the unwinding direction of the yarn wound around the package, and the control unit is based on the operation of the second capture device. The operation of the drive device may be controlled. In this configuration, when the second catching device catches the second yarn and pulls it out of the package, the rotation of the driving device is matched with the operation of the second catching device, so that the optimum amount for the operation of the second catching device. The second thread can be unwound with. Therefore, in the spinning machine, the tension (slack amount) of the second yarn can be adjusted. Therefore, in the spinning machine, it is possible to avoid applying excessive tension to the second yarn, and thus it is possible to avoid the occurrence of yarn breakage of the second yarn.

In one embodiment, the spinning machine holds the second yarn captured by the second catching device between the take-up device and the yarn splicing device, and further includes a holding device that defines the position of the second yarn. , The control unit may hold the second yarn by the holding device after rotating the package by the driving device. When the holding device holds the second thread, if the second thread is loose, the holding device may not be able to hold the second thread. In this case, when the take-up device starts winding the yarn after the yarn splicing operation, there may be a problem that the yarn is not properly twilled or the yarn is not wound at a predetermined position of the package. In the spinning machine, the tension of the second yarn is appropriately maintained by the driving device, so that the holding device can reliably hold the second yarn. Therefore, in the spinning machine, it is possible to avoid a problem related to winding of the yarn after the yarn splicing operation.

In one embodiment, the first catching device is movable to a first thread catching position for catching the first thread and a first thread guiding position for guiding the first thread to the thread joining device, and the second catching device is , The second thread catching position for catching the second thread and the second thread guiding position for guiding the second thread to the thread joining device can be moved, and the control unit determines the success or failure of catching the second thread in the second catching device. Judgment is made when the second catching device is located at the second thread catching position and while the second catching device is moving from the second thread catching position to the second thread guide position or the second catching device is second. If it is performed when the yarn guide position is located and it is determined that the second yarn is not captured by the second capture device, the first capture device may not be operated. In this configuration, when the second catching device fails to catch the second thread, the first catching device is not operated, so that it is possible to avoid the first catching device from operating unnecessarily.

In one embodiment, when the control unit determines that the second thread is not captured by the second capture device, the second thread capture failure at the second thread capture position and the second thread capture position are used. The failure results may be classified into and stored in the storage unit during the movement to the second thread guide position or the capture failure at the second thread guide position. With this configuration, it is possible to confirm the tendency of the yarn splicing operation of each spinning unit to fail.

In one embodiment, the automatic machine has a catching device that catches the yarn of the package and guides the yarn of the package to the spinning device when the yarn is in a split state, and the control unit transfers the yarn of the package to the spinning device by the catching device. It may be guided and the yarn splicing may be performed in the spinning apparatus. In this configuration, in a configuration in which the divided yarns are made into a continuous state by piecing, it is possible to prevent the yarn splicing from failing and improve the work efficiency.

In one embodiment, the control unit may change the working time according to the spinning conditions of the yarn. In this configuration, the yarn splicing operation can be executed under the optimum conditions according to the spinning conditions of the yarn (physical characteristics of the yarn (yarn type), thickness of the yarn, spinning speed, etc.).

In one embodiment, each of the plurality of spinning units is provided with a recovery device that recovers the fiber waste generated by the yarn splicing operation by a suction air flow, and the control unit is based on the distance between the spinning unit and the recovery device. , 1st mode or 2nd mode may be selected. The recovery device is arranged, for example, at the end of a plurality of spinning units in the arrangement direction. In this configuration, since the distances between each of the plurality of spinning units and the recovery device are different, the suction force of the suction air flow acting on the spinning units may vary. The suction force of the suction air flow can affect the success rate of the thread splicing operation. Therefore, the control unit selects the first mode or the second mode based on the distance between the spinning unit and the recovery device. As a result, the spinning machine can perform a yarn splicing operation suitable for each spinning unit.

The spinning method according to one aspect of the present invention includes a spinning device that twists a fiber bundle to generate threads and a winding device that winds the threads generated by the spinning device to form a package. It is provided so that it can be moved to the working position for each of the plurality of spinning units and the plurality of spinning units, and when the yarn is in a split state between the spinning device and the winding device, the yarn is in a continuous state. It is a spinning method executed in a spinning machine including an automatic machine that executes at least a part of the thread splicing operation for making the spinning unit, and in one of a plurality of spinning units, the automatic machine is the first. The yarn splicing operation is executed in one mode, and in another spinning unit different from one spinning unit, the automatic machine is made to execute the yarn splicing operation in the second mode in which the working time is different from the first mode.

In the spinning method according to one aspect of the present invention, the working time of the yarn splicing operation is different between one spinning unit and the other spinning unit. As a result, in the spinning method, the automatic machine can execute the yarn splicing operation suitable for each spinning unit according to the operating condition of each spinning unit. For example, when yarn breakage is more likely to occur in another spinning unit than in one spinning unit, the yarn breakage is caused by lengthening the time for catching the yarn in the other spinning unit and slowly pulling out the yarn. Can be reduced. Therefore, in the spinning method, it is possible to avoid the failure of the yarn splicing. As a result, in the spinning method, work efficiency can be improved.

According to one aspect of the present invention, work efficiency can be improved.

FIG. 1 is a front view of the spinning machine according to the embodiment. FIG. 2 is a side view of the spinning machine shown in FIG. FIG. 3 is a diagram showing a configuration of a thread joint carriage. 4 (a) and 4 (b) are timing charts showing the operation of the thread joint carriage. FIG. 5 is a diagram for explaining the operation of the thread joint carriage. FIG. 6 is a diagram for explaining the operation of the thread joint carriage. FIG. 7 is a diagram for explaining the operation of the thread joint carriage. FIG. 8 is a diagram for explaining the operation of the thread joint carriage.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIG. 1, the spinning machine 1 includes a plurality of spinning units 2, a thread joint carriage (automatic machine) 3, a ball lifting carriage (not shown), a first end frame 4, and a second end frame. 5 and. The plurality of spinning units 2 are arranged in one direction. Each spinning unit 2 produces a yarn Y and winds it around a package P. When the package P is fully wound in a certain spinning unit 2, the ball lifting trolley lifts the package P and supplies a new bobbin B to the spinning unit 2.

The first end frame 4 houses a recovery device or the like that collects fiber dust, yarn waste, and the like generated in the spinning unit 2 by a suction air flow. The first end frame 4 is arranged at one end in the arrangement direction of the plurality of spinning units 2. In the second end frame 5, the air pressure of compressed air (air) supplied from an air pressure feeding device (not shown) arranged in the textile factory where the spinning machine 1 is installed is adjusted to each part of the spinning machine 1. An air pressure adjusting unit for supplying air, a drive motor for supplying power to each part of the spinning unit 2, and the like are housed.

The second end frame 5 is provided with a machine base control device 15, a display screen 16, and an input key 17. The machine stand control device 15 centrally manages and controls each part of the spinning machine 1. The machine stand control device 15 has an input / output interface for inputting / outputting signals to / from the outside, a ROM (Read Only Memory) for storing programs and information for processing, and a RAM for temporarily storing data. It has a storage unit such as (Random Access Memory), a CPU (Central Processing Unit), a communication circuit, and the like. The machine stand control device 15 stores input data in a RAM based on a signal output by the CPU, loads the program stored in the ROM into the RAM, and executes various processes by executing the program loaded in the RAM. To execute.

The display screen 16 can display information on the setting contents and / or the state of the spinning unit 2. The setting work of the spinning unit 2 can be performed by the operator performing an appropriate operation using the input key 17. When the display screen 16 is composed of a touch panel display, the display screen 16 and the input key 17 are integrally configured.

Each spinning unit 2 includes a draft device 6, an air spinning device 7, a thread monitoring device 8, a tension sensor 9, a thread storage device 11, a waxing device 12, and so on, in order from the upstream side in the traveling direction of the thread Y. The winding device 13 and the like are provided. The unit controller 10 is provided for each of a predetermined number of spinning units 2 and controls the operation of the spinning units 2. The unit controller 10 may be provided in each spinning unit 2.

The draft device 6 drafts the sliver (fiber bundle) S. The draft device 6 has a back roller pair, a third roller pair, a middle roller pair, and a front roller pair in this order from the upstream side in the traveling direction of the sliver S. Each roller pair has a bottom roller and a top roller. The bottom roller is rotationally driven by a drive motor (not shown) provided on the second end frame 5.

The air spinning device 7 twists the fiber bundle F drafted by the draft device 6 by a swirling flow of air to generate a yarn Y. More specifically (however, not shown), the air spinning apparatus 7 includes a spinning chamber, a fiber guide portion, a swirling air flow generating nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle F supplied from the draft device 6 on the upstream side into the spinning chamber. The swirling air flow generating nozzle is arranged around the path through which the fiber bundle F travels. Swirling air flow generation By injecting air from the nozzle, swirling air flow is generated in the spinning chamber. By this swirling air flow, each fiber end of the plurality of fibers constituting the fiber bundle F is inverted and swirled. The hollow guide shaft guides the yarn Y from the spinning chamber to the outside of the air spinning apparatus 7.

The thread storage device 11 stores the thread Y between the air spinning device 7 and the winding device 13. The yarn storage device 11 has a function of drawing out the yarn Y from the air spinning device 7.

The waxing device 12 applies wax to the yarn Y between the yarn storage device 11 and the take-up device 13.

The take-up device 13 winds the thread Y on the bobbin B to form the package P. The take-up device 13 has a cradle arm 21, a take-up drum 22, and a traverse guide 23. The cradle arm 21 rotatably supports the bobbin B. The cradle arm 21 is swingably supported by a support shaft 24. When the bobbin B (package P) is rotated in the winding direction, the cradle arm 21 brings the surface of the bobbin B or the surface of the package P into contact with the surface of the winding drum 22 at an appropriate pressure. A drive motor (not shown) provided on the second end frame 5 simultaneously drives the take-up drums 22 of the plurality of spinning units 2. As a result, the bobbin B or the package P is rotated in the winding direction in each spinning unit 2.

The thread joint carriage 3 is provided with a reversing roller 29b. The reversing roller 29b is a roller for rotating the package P in the unwinding direction opposite to the winding direction. When rotating the package P in the unwinding direction, the cradle arm 21 separates (lifts up) the surface of the package P from the surface of the take-up drum 22, and the thread joint carriage 3 moves the reversing roller 29b of the package P. Make contact with the surface. As a result, the package P with which the reversing roller 29b is in contact can be rotated in the unwinding direction.

The traverse guide 23 of each spinning unit 2 is provided on a shaft shared by a plurality of spinning units 2. The drive motor (not shown) of the second end frame 5 reciprocates the shaft in the direction of the rotation axis of the take-up drum 22, so that the traverse guide 23 makes the thread Y a predetermined width with respect to the rotating bobbin B or the package P. Traverse.

The yarn monitoring device 8 monitors information on the running yarn Y between the air spinning device 7 and the yarn storage device 11, and detects the presence or absence of yarn defects based on the monitored information. When the thread monitoring device 8 detects a thread defect, the thread monitoring device 8 transmits a thread defect detection signal to the unit controller 10. The tension sensor 9 measures the tension of the traveling yarn Y between the air spinning device 7 and the yarn storage device 11, and transmits a tension measurement signal to the unit controller 10. When the unit controller 10 determines that there is an abnormality based on the detection result of the yarn monitoring device 8 and / or the tension sensor 9, the unit controller 10 cuts the yarn Y by stopping the spinning operation in the spinning unit 2. When the spinning unit 2 includes a cutter, the thread Y may be cut by the cutter.

When the yarn Y is cut by a certain spinning unit 2 or the yarn Y is cut by some reason, the yarn splicing carriage 3 performs a yarn splicing operation by the spinning unit 2. For example, a plurality of thread joint carriages 3 are provided in the spinning machine 1. The thread joint carriage 3 travels along the arrangement direction (left-right direction in FIG. 1) of the spinning unit 2. As a result, the thread splicing carriage 3 is movably provided at a working position (position where the thread splicing operation is performed) with respect to each of the plurality of spinning units 2.

As shown in FIG. 2, the thread splicing carriage 3 includes a thread splicing device 26, a suction pipe (first catching device) 27, a suction mouse (second catching device) 28, and a reverse rotation device (driving device) 29. It also has a yarn clamp (holding device) 30 and a thread joint carriage control unit (control unit) 31.

The yarn splicing device 26 executes a yarn splicing operation for keeping the yarn Y in a continuous state when the yarn Y is in a split state between the air spinning device 7 and the winding device 13. The yarn splicing device 26 is a yarn splicing of a yarn Y (hereinafter referred to as a first yarn Y1) drawn from an air spinning apparatus 7 and a yarn Y (hereinafter referred to as a second yarn Y2) drawn from a package P. I do. The thread splicing device 26 is a splicer that uses compressed air, a knotter that mechanically splices the thread Y, or the like. In this embodiment, the splicer will be described as an example.

The suction pipe 27 is rotatably supported by a support shaft 27a, captures the first yarn Y1 from the air spinning apparatus 7, and guides the first yarn Y1 to the yarn joining device 26. When the suction pipe 27 captures the first yarn Y1, the suction pipe 27 sucks the first yarn Y1 sent out from the air spinning device 7. The suction pipe 27 has a standby position P11, a first yarn catching position P12 for capturing the first yarn Y1 from the air spinning device 7, and a first yarn guide position P13 for guiding the first yarn Y1 to the yarn joining device 26. It is provided so that it can be moved to. The standby position P11 and the first thread guide position P13 may be at the same position. The standby position P11, the first thread catching position P12, and the first thread guide position P13 of the suction pipe 27 may be detected by a sensor (not shown), may be detected by an encoder, or may be detected by a first drive, which will be described later. It may be detected based on the driving amount (number of pulses, etc.) of the unit 40 (stepping motor).

The suction pipe 27 moves to the standby position P11, the first thread catching position P12, and the first thread guide position P13 by the operation of the first drive unit 40 (see FIG. 3). The first drive unit 40 is, for example, a stepping motor. The operation of the first drive unit 40 is controlled by the thread joint bogie control unit 31. That is, the movement (rotation) of the suction pipe 27 is controlled by the thread joint carriage control unit 31.

The suction mouse 28 is rotatably supported by a support shaft 28a, captures the second thread Y2 from the winding device 13, and guides the second thread Y2 to the thread joining device 26. The suction mouse 28 has a standby position P21, a second thread capturing position P22 for capturing the second thread Y2 from the winding device 13, and a second thread guiding position P23 for guiding the second thread Y2 to the thread joining device 26. It is provided so that it can be moved to. The standby position P21 and the second thread guide position P23 may be at the same position. The standby position P21, the second thread capture position P22, and the second thread guide position P23 of the suction mouse 28 may be detected by a sensor (not shown), an encoder, or a second drive described later. It may be detected based on the drive amount (number of pulses, etc.) of the unit 41 (stepping motor).

The suction mouse 28 moves to the standby position P21, the second thread catching position P22, and the second thread guide position P23 by the operation of the second drive unit 41 (see FIG. 3). The second drive unit 41 is, for example, a stepping motor. The operation of the second drive unit 41 is controlled by the thread joint bogie control unit 31. That is, the movement (rotation) of the suction mouse 28 is controlled by the thread joint carriage control unit 31.

The suction mouse 28 is provided with a sensor 32. The sensor 32 is arranged at a position where the second thread Y2 sucked by the suction mouse 28 can be detected. The sensor 32 is, for example, an optical sensor (light emitting unit, light receiving unit). When the sensor 32 detects the second thread Y2 sucked by the suction mouse 28, the sensor 32 outputs a detection signal to the thread joint carriage control unit 31.

The reverse rotation device 29 reversely rotates the package P of the winding device 13. The reverse rotation device 29 has a support arm 29a and a reverse roller 29b. One end of the support arm 29a is connected to a support shaft. As a result, the support arm 29a is provided so as to be swingable around the support shaft. The support arm 29a has a retracting position (see FIG. 2) in which the reversing roller 29b does not contact the package P and a contact position in which the reversing roller 29b contacts the package P (see FIG. 5) due to a drive unit (not shown) such as a motor. And move to. The swing of the support arm 29a is controlled by the thread joint carriage control unit 31.

The reversing roller 29b is provided at the other end of the support arm 29a. The reversing roller 29b is rotated in the direction opposite to that of the winding drum 22 of the winding device 13 by the third drive unit 42 (see FIG. 3). The third drive unit 42 is, for example, a stepping motor. The operation of the third drive unit 42 is controlled by the thread joint bogie control unit 31. That is, the rotation of the reverse rotation device 29 is controlled by the thread joint carriage control unit 31.

The yarn clamp 30 holds the second thread Y2 captured by the suction mouse 28 between the winding device 13 and the thread joining device 26, and defines the position of the second thread Y2. The yarn clamp 30 regulates the position of the second yarn Y2 in the axial direction of the package P. The yarn clamp 30 is arranged between the yarn splicing device 26 and the package P in the traveling direction of the yarn Y. The yarn clamp 30 sandwiches the second thread Y2. The yarn clamp 30 has a regulation plate 30a and a pair of regulation bars 30b. One end of the regulation plate 30a is connected to a support shaft. As a result, the regulation plate 30a is provided so as to be swingable around the support shaft.

The pair of regulation bars 30b are arranged on the regulation plate 30a. One end of each of the pair of regulation bars 30b is connected to a shaft provided on the regulation plate 30a. As a result, the pair of regulation bars 30b can swing about the axis by the operation of a drive source (not shown). Each of the pair of regulation bars 30b moves in a proximity direction close to each other and a separation direction away from each other. When the pair of regulation bars 30b are close to each other, the pair of regulation bars 30b extend in parallel with each other. At this time, the thread Y sandwiched between the pair of regulation bars 30b is located substantially in the center of the package P in the width direction.

The yarn clamp 30 moves to a regulation position where the regulation plate 30a overlaps the thread path (see FIG. 5) and a retreat position where the regulation plate 30a does not overlap the thread path (see FIG. 2) due to the swing of the regulation plate 30a. It is possible. The regulation position is a position where the yarn clamp 30 regulates the yarn Y so that the yarn Y is not twilled by the traverse guide 23. When viewed from the side surface shown in FIG. 2, the regulation plate 30a swings so that the position of its tip moves back and forth with respect to the thread path. The yarn clamp 30 moves to the regulated position and the retreat position by the operation of the drive unit (not shown). The operation of the yarn clamp 30 is controlled by the thread joint carriage control unit 31.

The thread joint carriage control unit 31 comprehensively controls the operation of the thread joint carriage 3. The thread joint trolley control unit 31 is a storage unit such as an input / output interface for inputting / outputting signals to and from the outside, a ROM for storing programs and information for processing, and a RAM for temporarily storing data. , CPU, communication circuit, etc. The thread joint trolley control unit 31 stores input data in the RAM based on the signal output by the CPU, loads the program stored in the ROM into the RAM, and executes various programs loaded in the RAM. Execute the process. The thread joint bogie control unit 31 can communicate with the machine base control device 15.

The thread joint carriage control unit 31 controls the thread joint operation in the thread joint carriage 3. In the present embodiment, the thread splicing operation means a series of operations of each device for connecting the divided threads Y (first thread Y1, second thread Y2). Each operation of each device can be said to be one of the thread splicing operations. The thread joint carriage control unit 31 controls the operations of the thread joint device 26, the suction pipe 27, the suction mouse 28, the reverse rotation device 29, and the yarn clamp 30.

The yarn splicing carriage control unit 31 causes the yarn splicing carriage 3 to execute the yarn splicing operation in the first mode in the spinning unit 2 of one of the plurality of spinning units 2. The yarn splicing carriage control unit 31 executes the yarn splicing operation in the second mode in which the working time (cycle time) is different from that in the first mode in the thread splicing carriage 3 in another spinning unit 2 different from one spinning unit. Let me. Details of the first mode and the second mode will be described in detail later.

Each of one spinning unit 2 and the other spinning unit 2 is one or more spinning units 2. One spinning unit 2 and the other spinning unit 2 are set according to the operating status of each spinning unit 2. The operating status of each spinning unit 2 is the characteristics of the spinning unit 2 due to the spinning conditions of the yarn Y, the operating environment of the spinning unit 2 (position where the spinning unit 2 is arranged, etc.), individual differences of the spinning unit 2, and the like. And so on. In the present embodiment, in the other spinning unit 2, the first yarn Y1 and the second yarn Y2 are more likely to be entangled during the execution of the yarn splicing operation than in one spinning unit 2.

The thread joint carriage control unit 31 determines the success or failure of capturing the second thread Y2 in the suction mouse 28. The thread joint carriage control unit 31 makes a success / failure determination based on the detection signal of the sensor 32 of the suction mouse 28. Specifically, the thread joint carriage control unit 31 says that when the second thread Y2 is detected for a predetermined time (for example, 1.0 second) or longer, the suction mouse 28 succeeds in capturing the second thread Y2. to decide.

The thread joint carriage control unit 31 determines the success or failure of capturing the second thread Y2 when the suction mouse 28 is located at the second thread capturing position P22. Further, the thread joint carriage control unit 31 may determine the success or failure of capturing the second thread Y2 while the suction mouse 28 is moving from the second thread capturing position P22 to the second thread guiding position P23. This may be performed when the suction mouse 28 is located at the second thread guide position P23. The thread joint carriage control unit 31 may always determine the success or failure of capturing the second thread Y2 while the suction mouse 28 is operating. The timing at which the thread joint carriage control unit 31 determines the success or failure of capturing the second thread Y2 can be appropriately set. The timing for determining the success or failure of capturing the second thread Y2 can be appropriately changed by, for example, operating the display screen 16 and the input key 17 of the second end frame 5.

When the suction mouse 28 fails to capture the second thread Y2, the thread joint carriage control unit 31 stores the failure result in the storage unit. The thread joint carriage control unit 31 classifies and stores the failure results according to the position of the suction mouse 28 when the capture fails. Specifically, the thread joint trolley control unit 31 classifies the failure results into "missing mouth" and "tension when the mouse is raised". When the thread joint carriage control unit 31 determines that the success or failure is determined in the success / failure determination at the second thread capture position P22, the thread joint carriage control unit 31 classifies the failure as a “mouthing error”. That is, when the suction mouse 28 cannot catch the second thread Y2, the thread joint carriage control unit 31 classifies it as a “mouthing error”. When the thread joint carriage control unit 31 is moving from the second thread catching position P22 to the second thread guide position P23, or when it is determined that the success / failure determination at the second thread guide position P23 is unsuccessful, "when the mouse is raised". It is classified as "out of tension". That is, when the suction mouse 28 captures the second thread Y2 and then the second thread Y2 is cut and the second thread Y2 is not detected, the thread joint carriage control unit 31 "tensions when the mouse is raised". Classify into.

The data related to the failure result stored in the storage unit by the thread joint carriage control unit 31 can be confirmed for each spinning unit 2 on the display screen 16 of the second end frame 5. The data can also be used (reflected) for controlling the operation of the reverse rotation device 29.

Subsequently, the operation (spinning method) of the yarn joint carriage 3 will be described in detail. In the thread splicing carriage 3, the thread splicing carriage control unit 31 causes the thread splicing carriage 3 to execute the thread splicing operation in the first mode in the spinning unit 2 of one of the plurality of spinning units 2, and one spinning unit. In another spinning unit 2 different from 2, the yarn splicing carriage 3 is made to execute the yarn splicing operation in the second mode in which the working time is different from the first mode. The yarn splicing carriage control unit 31 stores each of the spinning units 2 and the yarn splicing operation modes (first mode, second mode) in association with each other in the storage unit. The mode setting for each spinning unit 2 can be appropriately changed by operating the display screen 16 and the input key 17 of the second end frame 5, for example.

The thread joint carriage control unit 31 makes the time from the start of operation of the suction mouse 28 to the operation of the suction pipe 27 different between the first mode and the second mode. Specifically, as shown in FIG. 4A, in the first mode, the thread splicing carriage control unit 31 is a suction pipe before the suction mouse 28 guides the second thread Y2 to the thread splicing device 26. The operation of 27 is started. That is, in the first mode, the thread joint carriage control unit 31 operates the suction pipe 27 before the suction mouse 28 is located at the second thread guide position P23. In the first mode, the working time is set to "T1". The working time T1 is set according to the operating condition of one spinning unit 2.

As shown in FIGS. 4B and 8, in the second mode, the thread splicing carriage control unit 31 operates the suction pipe 27 after the suction mouse 28 guides the second thread Y2 to the thread splicing device 26. To start. That is, in the second mode, the thread joint carriage control unit 31 operates the suction pipe 27 when the suction mouse 28 is located at the second thread guide position P23. In the second mode, the working time is set to "T2". The working time T2 is longer than the working time T1 (T2> T1). The working time T2 is set according to the operating conditions of the other spinning units 2. The working time does not include, for example, the extended time when the suction mouse 28 fails to capture the second thread Y2 and re-executes the capturing operation of the second thread Y2. That is, the working time in each mode means a preset time, not the time actually required for the yarn splicing operation.

The thread splicing operation will be described in more detail. When yarn breakage or yarn breakage occurs in one spinning unit 2, the cradle arm 21 is swung in the spinning unit 2 to separate the package P from the take-up drum 22. The machine base control device 15 transmits a control signal for moving the yarn joint carriage 3 to the above-mentioned one spinning unit 2 to the yarn joint carriage 3. Upon receiving the control signal, the thread joint carriage 3 travels to the one spinning unit 2 and stops traveling at the working position corresponding to the one spinning unit 2. When the thread splicing carriage control unit 31 receives the control signal, the thread splicing carriage control unit 31 acquires the mode of the thread splicing operation corresponding to the spinning unit 2 indicated by the control signal from the storage unit. Here, it is described that the thread joint carriage control unit 31 has acquired the first mode.

Subsequently, a braking member (not shown) provided on the thread joint carriage 3 comes into contact with the package P to stop the inertial rotation of the package P. If the rotation of the package P has already stopped, the braking member may not be activated. Alternatively, the winding device 13 may be provided with a braking member, and the braking member may stop the inertial rotation of the package P.

Next, the thread joint carriage control unit 31 operates the suction mouse 28 and the reverse rotation device 29. Specifically, the thread joint carriage control unit 31 moves the suction mouse 28 to the second thread capture position P22, and moves the reverse rotation device 29 from the standby position to the contact position. Then, the suction of the suction mouse 28 is started at the same timing as the start of the reverse rotation of the package P by the reverse rotation device 29 (FIG. 4A). When the thread joint carriage control unit 31 starts the rotation of the reverse rotation device 29, the yarn clamp 30 is operated. The yarn clamp 30 sandwiches the second thread Y2. As a result, the suction mouse 28 can suck the second thread Y2 unwound from the package P by the reverse rotation device 29.

The thread joint carriage control unit 31 determines the success or failure of capturing the second thread Y2 when a predetermined time (0 seconds or more) has elapsed from the position of the suction mouse 28 at the second thread capturing position P22. When the thread joint carriage control unit 31 determines that the second thread Y2 has been captured by the suction mouse 28, the thread joint carriage control unit 31 moves the suction mouse 28 from the second thread capture position P22 to the second thread guide position P23. As a result, the suction mouse 28 guides the second thread Y2 to the thread joining device 26. When the thread joint carriage control unit 31 determines that the thread guidance by the suction mouse 28 has failed, the thread joint carriage control unit 31 may move the suction mouse 28 to the second thread capture position P22 again to perform a series of operations. When the capture of the first thread Y1 by the suction pipe 27 has started, the capture by the suction pipe 27 may be temporarily canceled.

As shown in FIG. 6, in the first mode, the thread joint carriage control unit 31 operates the suction pipe 27 when the second thread Y2 is captured by the suction mouse 28. The thread joint carriage control unit 31 is used before the suction mouse 28 is positioned at the second thread guide position P23 (while the suction mouse 28 is moving from the second thread capture position P22 to the second thread guide position P23) (FIG. 4). (See (a)), the suction pipe 27 is operated. The suction pipe 27 moves from the standby position P11 to the first thread catching position P12, and catches the first thread Y1 at the first thread catching position P12. When the suction pipe 27 catches the first thread Y1, it moves from the first thread catching position P12 to the first thread guide position P13, and guides the first thread Y1 to the thread joining device 26.

As shown in FIG. 7, the thread splicing carriage control unit 31 connects the thread splicing device 26 with the first thread Y1 guided by the suction pipe 27 and the second thread Y2 guided by the suction mouse 28. Execute the succession operation. The yarn splicing device 26 connects the first yarn Y1 and the second yarn Y2 by twisting or tying the yarn end of the first yarn Y1 and the yarn end of the second yarn Y2. After the thread splicing operation by the thread splicing device 26 is completed, the suction mouse 28 returns to the standby position P21 and the suction pipe 27 returns to the standby position P11. As described above, the thread splicing operation in the first mode by the thread splicing carriage 3 is completed. When the yarn splicing operation is completed, the machine base control device 15 transmits, for example, a control signal for moving the yarn splicing carriage 3 to the next spinning unit 2 to the yarn splicing carriage 3. Upon receiving the control signal, the thread joint carriage 3 moves to the next spinning unit 2.

Next, the thread splicing operation in the second mode will be described. When a yarn breakage or a yarn break occurs in the other spinning unit 2, the machine base control device 15 transmits a control signal for moving the yarn splicing carriage 3 to the other spinning unit 2 to the yarn splicing carriage 3. Upon receiving the control signal, the thread joint carriage 3 travels to the other spinning unit 2 and stops traveling at a working position corresponding to the other spinning unit 2. When the thread splicing carriage control unit 31 receives the control signal, the thread splicing carriage control unit 31 acquires the mode of the thread splicing operation corresponding to the spinning unit 2 indicated by the control signal from the storage unit. Here, it is described that the thread joint carriage control unit 31 has acquired the second mode.

The second mode differs from the first mode only in the timing at which the suction pipe 27 starts operating. Specifically, as shown in FIG. 8, the thread joint carriage control unit 31 starts the operation of the suction pipe 27 when it is determined that the suction mouse 28 has reached the second thread guide position P23. When the thread joint carriage control unit 31 determines that the suction mouse 28 has failed to capture or guide the second thread Y2, the thread joint carriage control unit 31 may not operate the suction pipe 27. Then, the thread joint carriage control unit 31 may move the suction mouse 28 to the second thread capture position P22 again to perform a series of operations.

As shown in FIG. 8, specifically, the thread joint carriage control unit 31 moves the suction pipe 27 from the standby position P11 to the first thread catching position P12, and the first thread Y1 at the first thread catching position P12. To capture. When the suction pipe 27 catches the first thread Y1, it moves from the first thread catching position P12 to the first thread guide position P13, and guides the first thread Y1 to the thread joining device 26.

Subsequently, as shown in FIG. 7, the thread splicing carriage control unit 31 has the first thread Y1 guided by the suction pipe 27 and the first thread Y1 guided by the suction mouse 28 in the thread splicing device 26. The thread splicing operation that connects the two is executed. The yarn splicing device 26 connects the first yarn Y1 and the second yarn Y2 by twisting or tying the yarn end of the first yarn Y1 and the yarn end of the second yarn Y2. After the thread splicing operation by the thread splicing device 26 is completed, the suction mouse 28 returns to the standby position P21 and the suction pipe 27 returns to the standby position P11. As described above, the thread splicing operation in the second mode by the thread splicing carriage 3 is completed.

In at least one of the first mode and the second mode, the thread joint carriage control unit 31 may control the reverse rotation device 29 so that the second thread Y2 guided by the suction mouse 28 has the optimum slack. good. The thread joint carriage control unit 31 controls the rotation time of the reverse rotation device 29 or the rotation speed per unit time. When the rotation speed of the reverse rotation device 29 is increased, the second thread Y2 is likely to loosen (the tension of the second thread Y2 is reduced), and when the rotation speed of the reverse rotation device 29 is decreased, the second thread Y2 is less likely to loosen. (The tension of the second thread Y2 increases). The thread joint carriage control unit 31 acquires a control amount (rotation time or rotation speed per unit time) of the third drive unit 42 of the reverse rotation device 29 from the storage unit, and based on the acquired control amount, the third drive unit 42 is controlled. The control amount of the third drive unit 42 is set based on the control amount (movement time and movement speed) of the suction mouse 28. The control amount is the frequency of the second drive unit 41 (stepping motor), the number of pulses, and the like. As a result, the second yarn Y2 is unwound from the package P so as to have the optimum slack.

For example, when the thread joint carriage control unit 31 determines that the result of the failure of the suction mouse 28 to capture the second thread Y2 is "tension when the mouse is raised", the rotation time or unit time of the reverse rotation device 29 The rotation speed per hit may be adjusted. The control for synchronizing the operation of the reverse rotation device 29 with the movement of the suction mouse 28 may be omitted.

As described above, in the spinning machine 1 according to the present embodiment, the thread splicing carriage control unit 31 makes the working time of the thread splicing operation different between one spinning unit 2 and the other spinning unit 2. As a result, in the spinning machine 1, the yarn splicing carriage 3 can be made to execute the yarn splicing operation suitable for each spinning unit 2 according to the operating condition of each spinning unit 2. For example, when yarn breakage is more likely to occur in another spinning unit 2 than in one spinning unit 2, the time for capturing the yarn Y in the other spinning unit 2 is lengthened, and the yarn Y is slowly pulled out. It is possible to avoid the occurrence of thread breakage. Therefore, in the spinning machine 1, it is possible to prevent the yarn splicing from failing. As a result, in the spinning machine 1, the work efficiency can be improved.

In the spinning machine 1 according to the present embodiment, the thread splicing carriage 3 splices the first thread Y1 from the air spinning device 7 and the second thread Y2 drawn from the package P of the winding device 13. A thread splicing device 26, a suction pipe 27 that captures the first thread Y1 and guides the first thread Y1 to the thread splicing device 26, and a suction pipe 27 that captures the second thread Y2 and guides the second thread Y2 to the thread splicing device 26. The suction mouse 28 and the like. The thread joint carriage control unit 31 starts the operation of the suction pipe 27 after starting the operation of the suction mouse 28 in the thread joint operation, and the suction mouse 28 starts the operation in the first mode and the second mode. The time from the operation until the suction pipe 27 is operated is different. Depending on the spinning unit 2, the first yarn Y1 and the second yarn Y2 may be entangled during the execution of the yarn splicing operation. When the first thread Y1 and the second thread Y2 are entangled, the tension of the second thread Y2 becomes high, and thread breakage of the second thread Y2 may occur. Therefore, in the spinning machine 1, the entanglement of the first yarn Y1 and the second yarn Y2 is avoided by shifting the timing of operating the suction pipe 27 that captures the first yarn Y1 in the first mode and the second mode. It becomes possible to do. As a result, in the spinning machine 1, the occurrence of yarn breakage of the second yarn Y2 can be reduced, so that the work efficiency can be improved.

In the spinning machine 1 according to the present embodiment, in the first mode, the thread splicing carriage control unit 31 starts the operation of the suction pipe 27 before the suction mouse 28 guides the second thread Y2 to the thread splicing device 26. In the second mode, the suction mouse 28 guides the second thread Y2 to the thread joining device 26, and then starts the operation of the suction pipe 27. In this configuration, it is possible to more reliably avoid the entanglement of the first thread Y1 and the second thread Y2.

In the spinning machine 1 according to the present embodiment, the spinning unit 2 includes a reverse rotation device 29 that rotates the package P in the unwinding direction, which is the unwinding direction of the yarn Y wound around the package P. The thread joint carriage control unit 31 controls the operation of the reverse rotation device 29 based on the operation of the suction mouse 28. In this configuration, when the suction mouse 28 captures the second thread Y2 and pulls it out from the package P, the rotation of the reverse rotation device 29 is matched with the movement of the suction mouse 28, which is optimal for the movement of the suction mouse 28. The second thread Y2 can be unwound by the amount. Therefore, in the spinning machine 1, the tension (slack amount) of the second yarn Y2 can be adjusted. Therefore, in the spinning machine 1, since it is possible to avoid applying excessive tension to the second yarn Y2, it is possible to avoid the occurrence of yarn breakage of the second yarn Y2.

In the spinning machine 1 according to the present embodiment, the spinning unit 2 holds the second yarn Y2 captured by the suction mouse 28 between the winding device 13 and the yarn joining device 26, and at the same time, the position of the second yarn Y2. The yarn clamp 30 is provided. The thread joint carriage control unit 31 rotates the package P by the reverse rotation device 29, and then holds the second thread Y2 by the yarn clamp 30. When the yarn clamp 30 holds the second thread Y2, if the second thread Y2 is loose, the yarn clamp 30 may not be able to hold the second thread Y2. In this case, when the winding device 13 starts winding the yarn Y after the yarn splicing operation, the yarn Y is not properly twilled by the traverse guide 23, or the yarn Y is not wound at a predetermined position on the package P. Problems such as threading (falling off the end face) may occur. In the spinning machine 1, since the tension of the second yarn Y2 is appropriately maintained by the reverse rotation device 29, the yarn clamp 30 can reliably hold the second yarn Y2. Therefore, in the spinning machine 1, it is possible to avoid a problem related to winding of the yarn Y after the yarn splicing operation.

In the spinning machine 1 according to the present embodiment, the suction pipe 27 can move to the first yarn catching position P12 for catching the first yarn Y1 and the first yarn guiding position P13 for guiding the first yarn Y1 to the yarn joining device 26. Is. The suction mouse 28 can move to the second thread catching position P22 for catching the second thread Y2 and the second thread guiding position P23 for guiding the second thread Y2 to the thread joining device 26. The thread joint carriage control unit 31 determines the success or failure of capturing the second thread Y2 in the suction mouse 28 when the suction mouse 28 is located at the second thread capturing position P22 and when the suction mouse 28 guides the second thread. It is carried out when it is located at the position P23. When the thread joint carriage control unit 31 determines that the suction mouse 28 has not captured the second thread Y2, the thread joint carriage control unit 31 does not operate the suction pipe 27. In this configuration, when the suction mouse 28 fails to capture the second thread Y2, the suction pipe 27 is not operated, so that the suction pipe 27 can be prevented from operating unnecessarily.

When the suction pipe 27 is operated to execute the thread splicing operation even though the suction mouse 28 has not been able to capture the second thread Y2, it is necessary to restart the thread splicing operation from the beginning. In this case, the first thread Y1 captured by the suction pipe 27 and guided to the thread joining device 26 is discarded, resulting in waste. Further, when the yarn Y is stored in the yarn storage device 11, it takes time and effort because the operator needs to remove the yarn Y. In the spinning machine 1, when the suction mouse 28 fails to capture the second thread Y2, the suction pipe 27 is not operated, so that the amount of waste of the first thread Y1 can be reduced and the labor of the operator is troublesome. It can be reduced.

In the spinning machine 1 according to the present embodiment, when the thread joint carriage control unit 31 determines that the suction mouse 28 has not captured the second thread Y2, the thread splicing carriage control unit 31 of the second thread Y2 at the second thread capturing position P22. The failure results are classified into the capture failure and the capture failure during movement from the second thread capture position P22 to the second thread guide position P23 or at the second thread guide position P23, and stored in the storage unit. With this configuration, it is possible to confirm the tendency of failure of the yarn splicing operation of each spinning unit 2. Therefore, maintenance (adjustment) of each spinning unit 2 can be carried out based on the tendency. Further, it is possible to distinguish between the failure of the thread splicing operation caused by the suction mouse 28 and the failure of the thread splicing operation caused by the thread splicing device 26. When the failure of the thread splicing operation is caused by the thread splicing device 26, the thread splicing device 26 may be adjusted.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof.

In the above embodiment, the embodiment in which the automatic machine is a thread joint carriage 3 traveling along the arrangement direction of the spinning units 2 has been described as an example. However, the automatic machine is not limited to the thread joint carriage 3. The automatic machine may be provided so as to be movable at a working position for each of the plurality of spinning units 2.

In the above embodiment, the thread joint carriage control unit 31 describes, for example, a mode in which the time from the start of operation of the suction mouse 28 to the operation of the suction pipe 27 differs between the first mode and the second mode. bottom. However, the two modes of the thread splicing operation need only have different working times. Therefore, for example, in the first mode and the second mode, the operation start timing of the suction pipe 27 may be the same, but the drive time of the suction pipe 27 may be different.

In the above embodiment, the mode in which the thread joint carriage control unit 31 executes the thread joint operation in two modes, the first mode and the second mode, has been described as an example. However, three or more modes may be set depending on the operating condition of the spinning unit 2.

In the above embodiment, the thread joint carriage control unit 31 has described a mode in which the suction pipe 27 is operated after the suction mouse 28 is located at the second thread guide position P23 in the second mode. However, the thread joint carriage control unit 31 may have different times from the start of operation of the suction mouse 28 to the operation of the suction pipe 27 in the first mode and the second mode. Therefore, in the second mode, the thread joint carriage control unit 31 is, for example, before the suction mouse 28 is positioned at the second thread guide position P23 (during the movement from the second thread capture position P22 to the second thread guide position P23). The suction pipe 27 may be operated. For example, the thread joint carriage control unit 31 may operate the suction pipe 27 when the movement amount (rotation amount) of the suction mouse 28 is 3/4 or more.

In the above embodiment, the mode in which the suction mouse 28 is driven by the second driving unit 41 has been described as an example. However, the suction mouse 28 may be driven by a cam mechanism. In this case, the thread splicing device 26 and the suction mouse 28 may be driven by one cam mechanism.

In the above embodiment, a mode in which the yarn splicing carriage control unit 31 stores each of the spinning units 2 in association with the yarn splicing operation modes (first mode, second mode) has been described as an example. However, each of the spinning units 2 and the mode of the yarn splicing operation may be stored in the machine base control device 15. In this case, the machine base control device 15 includes information indicating the mode in the control signal transmitted to the thread joint carriage 3. When the thread splicing carriage control unit 31 receives the control signal, the thread splicing carriage control unit 31 executes the thread splicing operation based on the mode included in the control signal.

In the above embodiment, when the suction mouse 28 fails to capture the second thread Y2, the thread joint carriage control unit 31 stores the failure result in the storage unit of the thread joint carriage control unit 31 as an example. .. However, the failure result may be stored in the storage unit provided in the machine base control device 15.

In the above embodiment, when the thread joint bogie control unit 31 receives the control signal from the machine stand control device 15, the mode of the thread joint operation corresponding to the spinning unit 2 indicated by the control signal is acquired from the storage unit as an example. Explained to. However, the thread joint carriage control unit 31 may select the first mode or the second mode based on the distance between the spinning unit 2 and the recovery device. The recovery device is arranged at the end of the plurality of spinning units 2 in the arrangement direction. In this configuration, since the distance between each of the plurality of spinning units 2 and the recovery device is different, the suction force of the suction air flow acting on the spinning unit 2 may vary. The suction force of the suction air flow can affect the success rate of the thread splicing operation. Therefore, the thread joint carriage control unit 31 selects the first mode or the second mode based on the distance between the spinning unit 2 and the recovery device. As a result, the spinning machine can perform a yarn splicing operation suitable for each spinning unit 2.

In the above embodiment, the mode in which one spinning unit 2 and the other spinning unit 2 are set according to the operating state of each spinning unit 2 has been described as an example. That is, the first mode and the second mode are set according to the operating condition (operating environment) of each spinning unit 2. The operating environment may also include the relationship of the distance between the spinning unit 2 and the recovery device. That is, one spinning unit 2 and another spinning unit 2 can be set based on the distance between the spinning unit 2 and the recovery device.

In the above embodiment, at least a part of the bottom roller of the draft device 6 and the take-up drum 22 and the traverse guide 23 of the take-up device 13 are simultaneously generated by a plurality of drive motors provided in the second end frame 5. The driven form has been described as an example. However, the bottom roller, the take-up drum 22, and the traverse guide 23 may be independently driven by a drive motor provided in each spinning unit 2. With this configuration, in each spinning unit 2, it is possible to manufacture yarn under different spinning conditions (physical characteristics of yarn (yarn type, raw material), yarn thickness (count), spinning speed, etc.). In this case, if the yarn Y produced by one spinning unit 2 is more difficult to cut than the yarn Y produced by the other spinning unit 2, the one spinning unit 2 performs the yarn splicing operation in the first mode. In the other spinning unit 2, the yarn splicing operation is executed in the second mode. Further, the yarn joint carriage control unit 31 may change the working time according to the spinning conditions of the yarn Y. In this configuration, the yarn splicing operation can be executed under the optimum conditions according to the spinning conditions of the yarn Y.

In the above embodiment, a mode in which the suction pipe 27, the suction mouse 28, the reverse rotation device 29, and the yarn clamp 30 are controlled by the thread joint carriage control unit 31 has been described as an example. However, each device may be controlled by the machine base control device (control unit) 15.

In the above embodiment, as a method of making the divided yarn Y into a continuous state, a mode in which the yarn splicing device 26 (splicer or knotter) is used has been described as an example. However, the divided yarn Y may be brought into a continuous state by piecing. In this case, the yarn joint trolley supplies the yarn Y drawn from the package P to the air spinning device 7, and the machine base control device 15 starts the draft operation of the draft device 6 and the spinning operation of the air spinning device 7. Put the thread Y in a continuous state. That is, the thread splicing carriage 3 executes a part of the thread splicing operation. The thread joint carriage control unit 31 makes the working time (drawing time, drawing speed) of the above-mentioned supply operation different between the first mode and the second mode.

In the above embodiment, a mode in which the yarn storage device 11 has a function of drawing out the yarn Y from the air spinning apparatus 7 in the spinning unit 2 has been described as an example. However, the yarn Y may be pulled out from the air spinning apparatus 7 by the delivery roller and the nip roller. When the yarn Y is pulled out from the air spinning device 7 by the delivery roller and the nip roller, instead of or in addition to the yarn storage device 11, a slack tube and / or a mechanical compensator or the like that absorbs the slack of the yarn Y by the suction air flow is used. It may be provided.

In the above embodiment, a mode in which each device is arranged so that the yarn Y supplied on the upper side is wound on the lower side in the height direction of the spinning machine 1 has been described as an example. However, each device may be arranged so that the yarn supplied on the lower side is wound on the upper side. In this case, the "tension when the mouse is raised" in the above embodiment corresponds to the "tension when the mouse is lowered".

The tension sensor 9 may be arranged on the upstream side of the thread monitoring device 8 in the traveling direction of the thread Y. The unit controller 10 may be provided for each spinning unit 2. In the spinning unit 2, the waxing device 12 and the tension sensor 9 may be omitted.

In FIG. 1, the spinning machine 1 is shown so as to wind up the cheese-shaped package P, but it is also possible to wind up the cone-shaped package. In the case of a cone-shaped package, the traverse of the yarn causes slack in the yarn, and the slack can be absorbed by the yarn storage device 11. As the material and shape of each configuration, not only the above-mentioned material and shape but also various materials and shapes can be adopted.

1 ... Spinning machine, 2 ... Spinning unit, 3 ... Thread splicing machine (automata), 13 ... Winding device, 15 ... Machine stand control device (control unit), 26 ... Thread splicing device, 27 ... Suction pipe (1st (Capture device), 28 ... Suction mouse (second capture device), 29 ... Reverse rotation device (drive unit), 30 ... Yarn clamp (holding device), 31 ... Thread joint trolley control unit (control unit), F ... Fiber bundle , P ... Package, P12 ... 1st thread catching position, P13 ... 1st thread guide position, P22 ... 2nd thread catching position, P23 ... 2nd thread guide position, S ... sliver (fiber bundle), Y ... thread, Y1 ... 1st thread, Y2 ... 2nd thread.

Claims (11)

A plurality of spinning units each having a spinning device that twists a fiber bundle to generate yarn and a winding device that winds the yarn generated by the spinning device to form a package.
It is movably provided at a working position for each of the plurality of spinning units, and is used to bring the yarn into a continuous state when the yarn is in a split state between the spinning device and the winding device. An automatic machine that performs at least part of the thread splicing operation,
A control unit that controls the operation of the automatic machine is provided.
The control unit
In the spinning unit, which is one of the plurality of spinning units, the automatic machine is made to execute the yarn splicing operation in the first mode.
In another spinning unit different from one spinning unit, the spinning machine causes the automatic machine to execute the yarn splicing operation in a second mode in which the working time is different from that of the first mode. The automatic machine
A yarn splicing device for splicing a first yarn from the spinning device and a second yarn drawn from the package of the winding device.
A first catching device that catches the first yarn and guides the first yarn to the yarn splicing device.
It has a second catching device that catches the second thread and guides the second thread to the thread splicing device.
The control unit
In the thread splicing operation, after starting the operation of the second catching device, the operation of the first catching device is started.
The spinning machine according to claim 1, wherein the time from the start of operation of the second capture device to the operation of the first capture device is different between the first mode and the second mode. The control unit
In the first mode, the operation of the first catching device is started before the second catching device guides the second yarn to the thread joining device.
The spinning machine according to claim 2, wherein in the second mode, the second catching device guides the second yarn to the yarn joining device and then starts the operation of the first catching device. A drive device for rotating the package in the unwinding direction, which is the unwinding direction of the yarn wound around the package, is further provided.
The spinning machine according to claim 2 or 3, wherein the control unit controls the operation of the drive device based on the operation of the second capture device. The second yarn captured by the second catching device is held between the winding device and the yarn joining device, and a holding device for defining the position of the second yarn is further provided.
The spinning machine according to claim 4, wherein the control unit holds the second yarn by the holding device after rotating the package by the driving device. The first catching device can move to a first thread catching position for catching the first thread and a first thread guiding position for guiding the first thread to the thread joining device.
The second catching device can move to a second thread catching position for catching the second thread and a second thread guiding position for guiding the second thread to the thread joining device.
The control unit
The success or failure of the capture of the second thread in the second capture device is determined when the second capture device is located at the second thread capture position and when the second thread capture position of the second capture device. To the second thread guide position or when the second catching device is located at the second thread guide position.
The spinning machine according to any one of claims 2 to 5, which does not operate the first catching device when it is determined that the second catching device does not catch the second yarn. When the control unit determines that the second thread is not captured by the second capture device, the second thread capture failure at the second thread capture position and the second thread capture position are used. The spinning machine according to claim 6, wherein the failure results are classified into the capture failure during the movement to the second yarn guide position or the capture failure at the second yarn guide position and stored in the storage unit. The automatic machine has a catching device that catches the yarn of the package and guides the yarn to the spinning device when the yarn is in a split state.
The spinning machine according to claim 1, wherein the control unit guides the yarn of the package to the spinning device by the catching device, and causes the spinning device to perform yarn splicing. The spinning machine according to any one of claims 1 to 8, wherein the control unit changes the working time according to the spinning conditions of the yarn. Each of the plurality of spinning units is provided with a recovery device for recovering fiber debris generated in the yarn splicing operation by a suction air flow.
The spinning machine according to any one of claims 1 to 9, wherein the control unit selects the first mode or the second mode based on the distance between the spinning unit and the recovery device. A plurality of spinning units each having a spinning device for twisting a fiber bundle to generate yarn and a winding device for winding the yarn generated by the spinning device to form a package.
It is movably provided at a working position for each of the plurality of spinning units, and is used to bring the yarn into a continuous state when the yarn is in a split state between the spinning device and the winding device. A spinning method performed on a spinning machine comprising an automatic machine that performs at least a part of the yarn splicing operation.
In the spinning unit, which is one of the plurality of spinning units, the automatic machine is made to execute the yarn splicing operation in the first mode.
A spinning method in which in another spinning unit different from one spinning unit, the automatic machine is made to execute the yarn splicing operation in a second mode in which the working time is different from that of the first mode.

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