JP5979178B2 - Spinning machine fiber bundle supply stop device - Google Patents

Description

  The present invention relates to a fiber bundle supply stopping device for a spinning machine, and more particularly to a fiber bundle supply stopping device for a spinning machine that includes a draft device and can stop the supply of fiber bundles supplied to the draft device for each weight.

  In a spinning machine that spins a yarn from a roving yarn or a sliver, spinning is performed simultaneously with a plurality of weights, and even if yarn breakage occurs during spinning, weights other than the yarn breakage weight continue spinning. . There are spinning machines that continue to supply fiber bundles to the draft device of the spindle where the yarn breakage has occurred and suck and collect the fiber bundles sent from the draft device. However, depending on the spinning machine, the yarn breakage may occur. Some of them have a stopping device for stopping the supply of the fiber bundle to the draft device of the weight.

  In the case of a configuration in which the supply of the fiber bundle is continued even with respect to the weight where the thread breakage has occurred and the fiber bundle sent from the draft device is sucked and collected, until the yarn splicing operation is started at the thread breakage weight, The fiber bundle is supplied wastefully. On the other hand, when the yarn breakage is detected, in the case where the supply of the fiber bundle to the yarn breakage weight is stopped, the fiber bundle is suppressed from being wasted. However, once the supply of the fiber bundle is stopped, it takes several seconds for the operator or the work machine to return to a state where the yarn splicing work can be performed. The time to complete the work becomes longer. As a result, the working efficiency of the yarn splicing of the operator or the working machine is deteriorated, and consequently the operating efficiency of the spinning machine is lowered.

  Conventionally, in a ring spinning machine, after the yarn breakage is detected, the supply of the coarse yarn to the drafting device is not immediately stopped, and the yarn splicing operation by the robot with the yarn breakage weight is performed only once, and the yarn splicing operation has failed. In such a case, there has been proposed a method of operating a roving stop device for a thread breakage weight by a robot (see Patent Document 1).

Japanese Patent Laid-Open No. 3-40825

  However, in the method disclosed in Patent Document 1, the supply of the coarse yarn to the yarn breakage weight is not stopped until the yarn splicing operation by the robot fails once in the yarn breakage weight. For this reason, depending on the distance between the robot position and the thread breaker weight when the thread breakage occurs, it takes time for the robot to reach the thread breaker weight, and the rough thread is continuously supplied to the draft device in the thread breakage state. There is a problem that not only the yarn is supplied unnecessarily, but also roller winding of the roving yarn (fiber bundle) occurs.

  The present invention has been made in view of the above-described problems, and its object is to suppress the wasteful supply of fiber bundles to the yarn breakage weight when yarn breakage occurs, and It is an object of the present invention to provide a fiber bundle supply stop device for a spinning machine that can prevent deterioration in work efficiency.

A fiber bundle supply stopping device for a spinning machine that solves the above-described problem is a fiber bundle supply stopping device for a spinning machine that includes a fiber bundle supply stopping unit that can stop the supply of the fiber bundle supplied to the draft device for each weight. . A yarn breakage detecting unit that is provided for each weight and that detects the breakage of the yarn that is sent from the draft device to the weight, and a yarn splicing operation in the yarn breakage weight in which the yarn breakage is detected by the yarn breakage detecting unit operator or a position detector for detecting the position of the working machine, the operator based on the position of the worker or the working machine performs a yarn splicing operation detected by the position detecting unit and the working machine the yarn perform estimating the time required to reach the cut weight, the when required time is equal to or less than a preset value continues fiber bundle supply to the yarn breakage weight, wherein when the required time is greater than the set value A control unit that controls the fiber bundle supply stop unit so as to stop the supply of the fiber bundle to the yarn breakage weight.

According to this structure, a control part recognizes the position of an operator or a working machine based on the detection signal of a position detection part. When the yarn breakage occurs, the control unit confirms the position of the yarn breakage weight based on the detection signal of the yarn breakage detection unit, and performs the yarn splicing operation on the yarn breakage weight in which the yarn breakage is detected by the position detection unit. Based on the position of the worker or the work machine, the time required for the worker or the work machine to reach the thread breakage weight is estimated. The control unit determines whether or not the estimated required time is less than or equal to a preset set value. When the estimated time is less than or equal to the preset value, the control unit continues to supply the fiber bundle to the yarn breaker weight. For this reason, when the time required to reach the yarn breakage weight is short, the supply of the fiber bundle is not stopped until the start of yarn splicing, and the deterioration of the splicing work efficiency can be prevented. Further, when the estimated required time is long, the supply of the fiber bundle is stopped, and the fiber bundle is prevented from being wound around the draft roller so as to hinder the yarn splicing operation. Therefore, it is possible to suppress the wasteful supply of the fiber bundle to the yarn breakage weight when the yarn breakage occurs, and to prevent deterioration in the working efficiency of the yarn splicing.

  The position detection unit is preferably an optical sensor. For example, an IC tag can be used as the position detection unit. However, in the case of an optical sensor, it is not necessary for an operator to carry a special device for position detection.

The position detection unit is a combination of an IC tag and an IC tag reader, or a combination of an IC card and an IC card reader, and the control unit determines whether the worker is a yarn splicer or not. It is preferable to check from the IC tag or the IC card to estimate the time required for the yarn splicer to move to the yarn breakage weight . In spinning mills, there are workers who perform work other than yarn splicing work of a spinning machine, for example, maintenance work. Whether control unit the operator is piecing operator to check from the IC tag or IC card worker portable, operator be estimated for the time it takes to move yarn breakage Tsumuma, its The required time becomes appropriate, and it can be avoided that the control unit outputs the fiber bundle supply stop command even though the yarn splicer is near the yarn breakage weight.

  According to the present invention, when a yarn breakage occurs, it is possible to suppress the wasteful supply of fiber bundles to the yarn breakage weight, and to prevent deterioration of the working efficiency of the yarn splicing.

(A) is a schematic plan view which shows the arrangement state of the spinning machine and position detection part in 1st Embodiment, (b) is a schematic plan view which shows arrangement | positioning of the weight of a spinning machine, a thread break sensor, and a fiber bundle supply stop apparatus. . Schematic which shows arrangement | positioning of the position detection part of another embodiment. Schematic which shows arrangement | positioning of the position detection part of another embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1 (a), a plurality of ring spinning machines 11 as spinning machines are arranged side by side. As shown in FIG. 1 (b), each ring spinning machine 11 has a thread breakage for each weight 12. A yarn break sensor 13 is provided as a detection unit. In addition, the ring spinning machine 11 is provided with a fiber bundle supply stop unit 14 for each weight 12 that can stop the supply of a fiber bundle (coarse yarn) supplied to a draft device (not shown). A known device is used for the fiber bundle supply stop unit 14.

  As shown in FIG. 1 (a), optical sensors 15 as position detectors for detecting the position of the operator W are provided at opposite ends of each ring spinning machine 11 arranged adjacent to each other. Two sets of 16 are provided. Each optical sensor 15, 16 is composed of a light projecting unit 15 a, 16 a and a light receiving unit 15 b, 16 b, and the first optical sensor 15 is arranged near the end in the longitudinal direction of the ring spinning machine 11. A second optical sensor 16 is arranged on the inner side in the longitudinal direction of the ring spinning machine 11 from the optical sensor 15.

  Moreover, the ring spinning machine 11 in which the ring spinning machine 11 adjacent to only one side of the machine base exists, that is, the ring spinning machine 11 arranged at both ends in the arrangement direction of a plurality of ring spinning machines 11 arranged side by side is adjacent. A factory wall 30 is provided on the side opposite to the side facing the ring spinning machine 11. On the factory wall 30, light projecting portions 15 a and 16 a of the optical sensors 15 and 16 are provided at positions facing both ends of the ring spinning machine 11. At both ends of the ring spinning machine 11 facing the factory wall 30, light receiving parts 15b and 16b corresponding to the light projecting parts 15a and 16a provided on the factory wall 30 are provided, respectively. Therefore, it is possible to detect the position of the operator W not only in the passage between the units of the ring spinning machine 11 but also in the passage between the machine base of the ring spinning machine 11 and the factory wall 30.

  In general, a spinning factory is provided with a cleaning device (a so-called traveling cleaner) (not shown) that travels along the ring spinning machine 11. Therefore, the optical sensors 15 and 16 are disposed near the floor so that the optical sensors 15 and 16 do not erroneously detect the traveling cleaner.

  A control device 17 as a control unit is provided at one end of each ring spinning machine 11. The control device 17 includes a CPU 18 and a memory 19. The control device 17 is connected to a host computer 21 via a local area network (LAN) 20. The host computer 21 includes a CPU 22 and a memory 23.

  The control device 17 is connected to the yarn break sensor 13 via a signal line (not shown), and the weight 12 in which the yarn break has occurred based on the detection signal of the yarn break sensor 13, that is, the yarn break weights 12a and 12b (FIG. ) Is detected with a cross mark). The control device 17 is connected to the fiber bundle supply stop unit 14 via a signal line (not shown), and the fiber bundle supply stop command is sent to the fiber bundle supply stop unit 14 of the yarn breakage weights 12a and 12b that needs to stop the fiber bundle supply. Is output. When it is estimated that the operator W is near the thread breaker weight 12a when the thread breakage occurs and the time required for the worker W to reach the thread breaker weight 12a is short. Then, control is performed to delay the supply stop timing of the roving yarn. More specifically, when the yarn breakage weight 12a facing the passage is generated in a state where the operator W has entered the passage between the adjacent ring spinning machines 11, the controller 17 stops the fiber bundle supply stop portion of the yarn breakage weight 12a. 14, the fiber bundle supply stop command is output by delaying the supply stop timing of the roving yarn by a preset time.

  The control device 17 is connected to the light receiving portions 15b and 16b of the optical sensors 15 and 16 via signal lines (not shown), and the operator W is between adjacent ring spinning machines 11 based on detection signals from the light receiving portions 15b and 16b. Or it is judged whether it entered between the ring spinning machine 11 and the factory wall 30, or whether the operator W left the adjacent ring spinning machine 11 or between the ring spinning machine 11 and the factory wall 30. . More specifically, when the control device 17 inputs a detection signal from the light receiving unit 16b disposed inside the light receiving unit 15b, following the detection signal from the light receiving unit 15b disposed on the machine end side, It is determined that the operator W has entered between adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30. Further, when the control device 17 inputs the detection signal from the light receiving unit 15b following the detection signal from the light receiving unit 16b, the operator W is between the adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30. Judging from leaving between.

  In this embodiment, the light receiving portions 15b and 16b are viewed from the longitudinal direction of the base of the ring spinning machine 11, except for the ring spinning machine 11 arranged at the lowest position in FIG. Since it is provided only on one side (the upper side in FIG. 1), whether or not the operator W has entered between adjacent ring spinning machines 11 or whether or not the worker W has exited from between adjacent ring spinning machines 11 This determination can be made only on one side of the machine base (upper side in FIG. 1). As a result, each control device 17 allows an operator W to enter between the lower ring spinning machine 11 in FIG. 1 only with detection signals from the light receiving units 15b and 16b of the ring spinning machine 11 on which the control device 17 is provided. Whether or not the operator W has left the adjacent ring spinning machine 11 cannot be determined.

  In order to solve this problem, each control device 17 has entered the ring spinning machine 11 provided with itself and the adjacent ring spinning machine 11, or the operator W has entered the adjacent ring spinning machine 11. A question as to whether or not the spinning machine 11 has exited is output to the host computer 21. The host computer 21 stores the entry information of the worker W between the adjacent ring spinning machines 11 or the exit information of the worker W from between the adjacent ring spinning machines 11 in the memory 23 and the corresponding ring spinning machine 11. To the control device 17.

Next, the operation of the apparatus configured as described above will be described.
When the ring spinning machine 11 is operated, the CPU 18 of the control device 17 determines the presence or absence of yarn breakage of each weight 12 based on the detection signal from each yarn breakage sensor 13, and the weight 12 in which yarn breakage has occurred. That is, the position of the thread breakage weight 12a is stored in the memory 19.

  Further, the CPU 18 of the control device 17 is based on detection signals from the light receiving portions 15 b and 16 b of the optical sensors 15 and 16, and between the ring spinning machines 11 adjacent to the operator W or between the ring spinning machine 11 and the factory wall 30. It is determined whether or not it has entered between. More specifically, when the CPU 18 receives a detection signal from the light receiving unit 16b disposed inside the light receiving unit 15b following the detection signal from the light receiving unit 15b disposed on the side of the machine base, the CPU 18 It is determined that W has entered between adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30. In addition, when the CPU 18 receives the detection signal from the light receiving unit 15b following the detection signal from the light receiving unit 16b, the operator W is between the adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30. Judge that he left the room.

  The factory walls 30 facing the ring spinning machines 11 arranged at both ends in the arrangement direction of the ring spinning machines 11 arranged in parallel are provided with light projecting portions 15a and 16a of optical sensors 15 and 16, respectively. The ring spinning machine 11 is provided with light receiving portions 15b and 16b corresponding to the light projecting portions 15a and 16a. Therefore, it can be determined whether or not there is an operator W between the factory wall 30 based on detection signals from the light receiving units 15b and 16b provided on the side facing the factory wall 30.

  The CPU 18 estimates the time required for the worker W to reach the yarn break position based on the position of the worker W performing the yarn splicing operation detected by the optical sensors 15 and 16, and the required time is preset. The fiber bundle supply stop unit 14 is controlled so that the fiber bundle supply to the yarn break weight 12a is continued when the set value is less than the set value, and the fiber bundle supply to the yarn break weight 12a is stopped when the required time is larger than the set value. To do.

  The control device 17 calculates the position of the worker W based on the detection signal of the position detection unit (optical sensors 15 and 16). When the thread breakage occurs, the control device 17 confirms the position of the thread breakage weight 12a based on the detection signal of the thread breakage detection unit (thread breakage sensor 13), and until the operator W reaches the thread breakage position. It is determined whether or not the required time is longer than a preset set value. If it is greater than the set value, the fiber bundle supply to the weight is stopped.

  In a state where the yarn breakage detection signal is input from the yarn breakage sensor 13 and the operator W has left the adjacent ring spinning machine 11, the CPU 18 immediately enters the fiber bundle supply stop unit 14 of the yarn breakage weight 12a. In response, a fiber bundle supply stop command is output. As a result, the fiber bundle supply stop unit 14 is activated, and the supply of the fiber bundle (coarse yarn) to the yarn breakage weight is stopped. In a state where the worker W has left between the adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30, the time required for the worker W to reach the yarn breakage position becomes longer than the set value. Then, a fiber bundle supply stop command is output to the fiber bundle supply stop unit 14 of the yarn breakage weight 12a.

  In a state where the yarn breakage detection signal is input from the yarn breakage sensor 13, the CPU 18 is in a state where the operator W enters between the machine base passage or the ring spinning machine 11 and the factory wall 30 facing the yarn breakage weight 12 a. If there is, the supply of the fiber bundle to the yarn breakage weight 12a is continued, and after a preset delay time has elapsed, a fiber bundle supply stop command is output to the fiber bundle supply stop unit 14 of the yarn breakage weight. If the splicing is completed before the delay time elapses, the fiber bundle supply stop command is not output to the fiber bundle supply stop unit 14 of the yarn breakage weight. The delay time varies depending on the number of rotations of the ring spinning machine 11 and the thickness (count) of the spun fiber. If the count is fine, it takes time to roll up the roller even if the coarse yarn supply is continued in the yarn breakage state. Therefore, the delay time can be set longer. However, at the latest, the coarse yarn supply is stopped in several tens of seconds after the yarn breakage is detected.

  For example, as shown in FIG. 1 (a), in a state where the operator W has entered between adjacent ring spinning machines 11, the position facing the passage into which the operator W of one ring spinning machine 11 has entered. When the thread breakage weight 12a exists, the moving distance that the operator W moves to the thread breakage weight 12a is short as shown by the arrow d1. The CPU 18 determines that the time required for the operator W to reach the yarn breakage weight 12a is equal to or less than the set value in a state where the yarn breakage detection signal is input from the yarn breakage sensor 13. Then, the fiber bundle supply to the yarn breakage weight 12a is continued. Therefore, in a state where the worker W arrives at the yarn breakage weight 12a and starts the piecing operation, since the fiber bundle is continuously supplied, the worker W is wound around the roller in preparation for the piecing operation. The yarn splicing operation can be started without the need to remove the existing yarn or to cancel the stop state of the fiber bundle supply stop unit 14 by manual operation.

  Further, as shown in FIG. 1 (a), the yarn is at a position facing the passage between the ring spinning machine 11 and the factory wall 30 with the operator W entering between adjacent ring spinning machines 11. When the cut weight 12b exists, the moving distance that the operator W moves to the thread cut weight 12b becomes longer as indicated by the arrow d2. The CPU 18 determines that the time required for the operator W to reach the yarn breakage weight 12b in a state where the yarn breakage detection signal is input from the yarn breakage sensor 13 is larger than the set value. Therefore, a fiber bundle supply stop command is immediately output to the fiber bundle supply stop unit 14 of the yarn breakage weight 12b.

  If the fiber bundle supply stop unit 14 is not operated until the worker W reaches the yarn breakage weight, the worker W can immediately start the yarn splicing operation, and the time from the yarn breakage to the resumption of spinning can be increased. Can be shortened. That is, it is possible to prevent deterioration in the working efficiency of the yarn splicing. Further, if the yarn splicing work by the operator W is not started even after a preset time has elapsed, a stop command is output to the fiber bundle supply stop unit 14 for the yarn breakage weight 12a. For example, when the operator W moves to the thread breaker weight 12a and a new thread breaker weight 12a is generated, and the worker W performs the yarn splicing operation of the thread breaker weight 12a, the thread breakage is first performed. The time required to reach the thread breakage weight 12a that has occurred may be longer than the set time.

  If the fiber bundle supply stop unit 14 is operated before the worker W reaches the yarn breakage weight and the supply of the fiber bundle (coarse yarn) to the yarn breakage weight is stopped, the worker W performs the yarn splicing operation. For the preparation, the yarn splicing operation is performed after removing the yarn wound around the roller or releasing the stopped state of the fiber bundle supply stopping portion 14 by manual operation.

According to this embodiment, the following effects can be obtained.
(1) The fiber bundle supply stop device is a fiber bundle supply stop device of the ring spinning machine 11 provided with a fiber bundle supply stop portion for each weight 12 capable of stopping the supply of the fiber bundle (coarse yarn) supplied to the draft device. It is. A yarn break sensor 13 (yarn break detection unit) provided for each weight 12, a position detection unit (optical sensors 15 and 16) for detecting the position of the operator W performing the yarn splicing operation, and a position detection unit. Based on the detected position of the worker W performing the yarn splicing operation, the time required for the worker W to reach the yarn breakage position is estimated, and when the required time is less than a preset value, the yarn breakage weight 12a. A controller 17 (control unit) that controls the fiber bundle supply stop unit 14 so as to stop the supply of the fiber bundle to the yarn breaker weight 12a when the required time is longer than the set value. Prepare.

  According to this configuration, the control device 17 recognizes the position of the worker W based on the detection signal of the position detection unit. When the yarn breakage occurs, the control device 17 confirms the positions of the yarn breakage weights 12a and 12b based on the detection signal of the yarn breakage sensor 13, and performs the yarn splicing operation detected by the position detection unit. Based on the position, the time required for the worker W to reach the yarn break position is estimated. The control device 17 determines whether or not the estimated required time is equal to or less than a preset set value. When the estimated required time is equal to or less than the set value, the fiber bundle supply to the thread breaker weight is continued. For this reason, when the time required to reach the yarn breakage weight is short, the supply of the fiber bundle is not stopped until the start of yarn splicing, and the deterioration of the splicing work efficiency can be prevented. Further, when the estimated required time is long, the supply of the fiber bundle is stopped, and the fiber bundle is prevented from being wound around the draft roller so as to hinder the yarn splicing operation. Therefore, it is possible to suppress the wasteful supply of the fiber bundle to the yarn breakage weight when the yarn breakage occurs, and to prevent deterioration in the working efficiency of the yarn splicing.

  (2) In a state where the yarn breakage detection signal is input from the yarn breakage sensor 13, the control device 17 leaves the operator W from between adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30. If so, a fiber bundle supply stop command is immediately output to the fiber bundle supply stop unit 14 of the yarn breakage weight. That is, if the operator W is in a state in which the operator W has left the adjacent ring spinning machine 11 or between the ring spinning machine 11 and the factory wall 30, the operator is placed at the yarn breakage position of the ring spinning machine 11. Since it is determined that the time required for W to reach is larger than a preset value, it is not necessary to calculate the time required for the operator W to reach the yarn break position.

  (3) The CPU 18 may be in a state where the operator W enters between the adjacent ring spinning machines 11 or between the ring spinning machine 11 and the factory wall 30 in a state where the yarn breakage detection signal is input from the yarn breakage sensor 13. For example, after a preset delay time has elapsed, a fiber bundle supply stop command is output to the fiber bundle supply stop unit 14 of the yarn breakage weight. However, if the yarn splicing is completed before the delay time elapses, the fiber bundle supply stop command is not output to the fiber bundle supply stop unit 14 of the yarn breakage weight. Therefore, it is possible to prevent a fiber bundle supply stop command from being output to the fiber bundle supply stop unit 14 after the completion of piecing. Even if the required time is estimated to be equal to or less than the set value and the fiber bundle supply is continued, when the delay time elapses, a stop command is output to the fiber bundle supply stop unit 14 and the fiber bundle supply is stopped. Therefore, it is avoided that the supply of the fiber bundle is continued in vain.

  (4) The position detection units are the optical sensors 15 and 16. For example, an IC tag can be used as the position detection unit. However, in the case of an optical sensor, it is not necessary for the operator W to carry a special device for position detection.

(Second Embodiment)
Next, a second embodiment will be described. In this embodiment, the control device 17 causes the worker W to reach the yarn break position based on the distance traveled by the worker W to the thread break weight 12a, the number of thread break weights 12a, and the movement speed of the worker W. Estimate the time required until.

  Even if the movement distance of the worker W from the current position of the worker W to the position of the thread breakage weight is the same, the worker W performs the yarn splicing work depending on the number of thread breakage weights and the movement speed of the worker W. The time required to reach the position to be performed is different.

  However, in the second embodiment, the required time can be estimated more accurately by estimating the required time based on the moving distance, the number of thread breakage weights, and the moving speed of the worker W.

The embodiment is not limited to the above, and may be embodied as follows, for example.
As shown in FIG. 2, a space between adjacent ring spinning machines 11 and a space between the ring spinning machine 11 and the factory wall 30 are not shown, but a plurality of areas in the longitudinal direction of the machine base of the ring spinning machine 11 (Block) A set of optical sensors 15 and 16 is provided not only at both ends in the longitudinal direction of the ring spinning machine 11 but also at the boundary of each area. When the yarn break sensor 13 belonging to the area where the operator W is not present detects the yarn break, the fiber bundle supply stop command is immediately output to the fiber bundle supply stop unit 14 of the yarn break weight. When the yarn break sensor 13 belonging to the area where there is a yarn break is detected, a fiber bundle supply stop command is output after a preset time has passed to the fiber bundle supply stop unit 14 of the yarn break weight. You may do it.

  As shown in FIG. 2, a space between adjacent ring spinning machines 11 and a space between the ring spinning machine 11 and the factory wall 30 are not shown, but a plurality of areas in the longitudinal direction of the machine base of the ring spinning machine 11 (Block) A set of optical sensors 15 and 16 is provided not only at both ends in the longitudinal direction of the ring spinning machine 11 but also at the boundary of each area. When the thread break sensor 13 belonging to the area behind the traveling direction of the operator W detects the thread break in anticipation of the course (moving direction) of the worker W, the fiber bundle supply stop portion of the thread break weight is detected. When the yarn break sensor 13 belonging to the area on the front side in the traveling direction of the operator W detects a yarn break, the fiber bundle supply stop command is immediately output to the fiber bundle supply stop unit 14 of the yarn break weight. On the other hand, the fiber bundle supply stop command may be output after a preset time has elapsed.

  Each control device 17 is provided with the position information of the operator W from the control device 17 of the adjacent ring spinning machine 11 on the side where the light projecting portions 15a and 16a are provided, that is, the side where the light projecting portions 15a and 16a are provided. Then, information on whether or not the operator W is in the state of entering between the adjacent ring spinning machines 11 may be obtained by communication.

  ○ The position detection unit that detects the position of the worker W is not the optical sensors 15 and 16 including the light projecting units 15a and 16a and the light receiving units 15b and 16b, but a person who can selectively detect the worker W (person). A sensation sensor may be used. Examples of the human sensor include an infrared sensor and a capacitance sensor. When a human sensor is provided as the position detection unit, it is possible to prevent the sensor from erroneously detecting the traveling cleaner as the operator W even if the sensor installation position is not close to the floor surface. Further, the sensor does not require a combination of the light projecting unit and the light receiving unit, and can detect the worker W regardless of whether or not the adjacent ring spinning machine 11 exists.

  As shown in FIG. 3, you may provide the 1st infrared sensor 24 and the 2nd infrared sensor 25 as a position detection part in the both sides of the base of all the ring spinning machines 11 arranged in parallel. In this case, even in the case of the ring spinning machine 11 in which the adjacent ring spinning machine 11 exists only on one side, such as the ring spinning machine 11 located at both ends in the arrangement direction arranged in parallel, the ring precision of the operator W is adjacent. When moving on the side not facing the spinning machine 11, the control device 17 can detect the moving direction of the worker W based on the detection signals of the infrared sensors 24 and 25. That is, the control device 17 can determine based on the detection signals of the infrared sensors 24 and 25 whether or not the worker W is at a position corresponding to the weight 12 of the ring spinning machine 11 on which the control device 17 is provided. . Therefore, it is not necessary to obtain the position information of the operator W from the host computer 21 or the control device 17 of the adjacent ring spinning machine 11. The same effect can be obtained by using other human sensors instead of the infrared sensors 24 and 25.

  A combination of an IC tag and an IC tag reader or a combination of an IC card and an IC card reader may be used as the position detection unit. That is, the worker W may carry an IC tag or a non-contact type IC card, and an IC tag reader or an IC card reader may be provided on the ring spinning machine 11 side. In these cases, it is possible not only to prevent the traveling cleaner from being erroneously detected as the worker W, but also to identify whether the worker W is the yarn joining worker W or another worker W. It becomes. Further, an IC tag reader or an IC card reader may be provided on the side not facing the adjacent ring spinning machine 11 to detect when the operator W moves on the side not facing the adjacent ring spinning machine 11. It becomes possible. Therefore, it is not necessary to obtain the position information of the operator W from the host computer 21 or the control device 17 of the adjacent ring spinning machine 11.

  The control device 17 determines whether the worker W reaches the yarn break position based on the position of the yarn break weight detected by the yarn break sensor 13 and the position of the worker W detected by the position detection unit. The required time may be estimated, and a fiber bundle supply stop command may be output to the fiber bundle supply stop unit 14 of the weight when the required time is greater than a preset set value.

  ○ When there are a plurality of thread breakage weights on one side of the machine base of the ring spinning machine 11, the control device 17 immediately supplies the fiber bundles to the fiber bundle supply stop unit 14 of the weight 12 far from the operator W. A stop command may be output.

  ○ The fiber bundle is not limited to roving, but may be a sliver. For example, even in a ring spinning machine, a ring spinning machine that spins yarn from a sliver using a drafting device that drafts fiber bundles with a draft ratio much higher than that of a normal three-wire drafting device. A fiber bundle supply stop device may be used.

The spinning machine is not limited to a ring spinning machine, and may be, for example, a bundling spinning device or a friction spinning device.
○ It may be applied when the splicing work is performed with a work machine.

The following technical idea (invention) can be understood from the embodiment.
(1) In the invention according to claim 1, the control unit includes a position of a yarn breakage weight detected by the yarn breakage detection unit, and a position of the worker or the work machine detected by the position detection unit. Based on the above, the time required for the worker or the working machine to reach the yarn break position is estimated, and when the required time is greater than a preset set value, the fiber bundle supply stop device for the weight Output a bundle stop command.

  W ... worker, 11 ... ring spinning machine as spinning machine, 12 ... weight, 13 ... yarn breakage sensor as yarn breakage detection unit, 14 ... fiber bundle supply stop unit, 15, 16 ... optical sensor as position detection unit , 17 ... a control device as a control unit, 24, 25 ... an infrared sensor as a position detection unit.

Claims (3)

A fiber bundle supply stop device for a spinning machine equipped with a fiber bundle supply stop unit capable of stopping the supply of the fiber bundle supplied to the draft device for each weight,
A yarn breakage detection unit that is provided for each weight and detects the breakage of the yarn sent from the draft device to the weight ;
A position detection unit for detecting a position of an operator or a working machine performing a yarn splicing operation on the yarn breakage weight in which the yarn breakage is detected by the yarn breakage detection unit;
Estimating the time required to the operator or the working machine reaches the yarn breakage weight based on the location of the worker or the working machine performs a yarn splicing operation detected by said position detecting unit, the required time advance when the following set value continues fiber bundle supply to the yarn breakage weight, the fiber as when the required time is greater than the set value to stop the supply of the fiber bundle to the yarn breakage weight A fiber bundle supply stop device for a spinning machine, comprising: a control unit that controls the bundle supply stop unit. The fiber bundle supply stop device for a spinning machine according to claim 1, wherein the position detection unit is an optical sensor. The position detection unit is a combination of an IC tag and an IC tag reader, or a combination of an IC card and an IC card reader, and the control unit determines whether the worker is a yarn splicer or not. The fiber bundle supply stop device for a spinning machine according to claim 1 or 2, wherein the time required for the yarn splicing operator to move to the yarn breakage weight is estimated from the IC tag or the IC card to be performed. .