JP2016137959A - Yarn winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn winder which can automatically eliminate a state in which operation to feed a new bobbin is blocked and a yarn is connected between a device (a bobbin setting device) on a side feeding a bobbin and a yarn storage device.SOLUTION: A yarn winder comprises a yarn feeding part, a yarn storage device, and a bobbin setting device. The yarn feeding device feeds a yarn. The yarn storage device stores the yarn fed from the yarn feeding part. The bobbin setting device sets a bobbin for winding a yarn to a downstream side of the yarn storage device. The bobbin setting device comprises a yarn suction part and a bobbin feeding part. The yarn suction part can suck and remove a yarn. The bobbin feeding part feeds a bobbin to set the bobbin. When bobbin feeding operation, in which the bobbin feeding part feeds a bobbin, is blocked, the yarn suction part sucks and removes a yarn from the yarn storage device.SELECTED DRAWING: Figure 7

Description

  The present invention mainly relates to a yarn winding machine including a yarn storage device and a bobbin setting device.

  The yarn winding machine (spinning machine) of Patent Document 1 includes a spinning device, a yarn storage device, and a winding device. The spinning device produces a spun yarn by spinning the fiber bundle drafted by the draft device. The yarn storage device temporarily stores the spun yarn generated by the spinning device. The winding device winds the spun yarn unwound from the yarn storage device into a package. By storing the spun yarn, the yarn storage device can prevent the spun yarn from slackening even when the spinning speed and the winding speed do not match for some reason.

  The yarn winding machine of Patent Document 2 includes a doffing cart that doffs a package that is full of spinning units. The doffing cart includes a package discharge part (guide part), a yarn suction part (suction pipe), and a bobbin supply part. The package discharge unit guides the package full of spinning units to the conveyor. The yarn suction unit moves to the vicinity of the cradle while sucking the yarn generated by the spinning device. The bobbin supply unit supplies a new bobbin to the cradle, and fixes the yarn guided by the yarn suction unit to the bobbin.

JP 2010-180007 A JP 2012-86923 A

  Although details are not disclosed in Patent Document 2, the doffing carriage cuts the yarn using a cutter or the like after the bobbin supply unit fixes the yarn to the bobbin. Thereby, the state where the yarn is connected between the spinning unit and the doffing cart can be eliminated. Therefore, the doffing cart can travel toward other spinning units, for example.

  However, if some trouble occurs after the yarn suction unit sucks the yarn and the operation of supplying a new bobbin is prevented, the process of cutting the yarn using a cutter or the like may not be executed. As a result, the yarn remains connected between the doffing cart and the spinning unit. The operator needs to manually remove the yarn, which may reduce the operating efficiency of the yarn winder.

  The main object of the present invention is to prevent the operation of supplying a new bobbin, and even if the yarn is connected between the yarn accumulating device and the bobbin setting device, the bobbin winding automatically cancels the state. It is to provide a take-off machine.

Means and effects for solving the problems

  According to an aspect of the present invention, it is preferable that the yarn winding machine includes a yarn supplying unit having the following configuration, a yarn accumulating device, and a bobbin setting device. The yarn supplying section supplies yarn. The yarn storage device stores the yarn supplied from the yarn supplying unit. The bobbin setting device sets a bobbin for winding the yarn on the downstream side of the yarn accumulating device. The bobbin setting device includes a yarn suction unit and a bobbin supply unit. The yarn suction part can suck and remove the yarn. The bobbin supply unit performs a bobbin supply operation for supplying the bobbin in order to set the bobbin. When the bobbin supply operation of the bobbin supply unit is blocked, the yarn suction unit sucks and removes the yarn from the yarn storage device.

  As a result, even if the bobbin supply operation of the bobbin supply unit is blocked due to a malfunction or the like, the yarn suction unit sucks and removes the yarn from the yarn storage device. The state where the thread is connected can be automatically resolved.

  In the yarn winding machine, the yarn accumulating device includes a yarn accumulating roller, a yarn hooking member, and a yarn removing member. The yarn accumulating roller is driven to rotate. The yarn hooking member rotates in a state in which the yarn is hooked, thereby winding the yarn supplied from the yarn supplying unit and winding the yarn around the outer peripheral surface of the yarn accumulating roller. The yarn removing member performs a yarn removing operation for removing the yarn from the yarn hooking member. When the bobbin supply operation of the bobbin supply unit is blocked, after the rotation of the yarn accumulating roller is stopped and the yarn removing operation by the yarn removing member is performed, the yarn accumulating roller is rotated, The yarn suction unit sucks and removes the yarn from the yarn storage roller.

  Accordingly, by providing the yarn hooking member and the yarn removing member, it is possible to easily switch between a state where the yarn is wound around the yarn accumulating roller and a state where the yarn is removed from the yarn accumulating roller. Therefore, the yarn remaining on the yarn accumulating roller can be removed by a simple process.

  In the yarn winding machine, the yarn supplying unit is an air spinning device. When the bobbin supply operation of the bobbin supply unit is blocked, it is preferable to stop the spinning operation by the pneumatic spinning device.

  Thereby, the yarn connected from the air spinning device to the yarn storage device can be cut without using a cutter or the like.

  In the yarn winding machine, the bobbin supply unit preferably includes a cutting unit that cuts the yarn.

  When the bobbin supply unit includes the cutting unit in this way, when the bobbin supply operation is blocked, the processing of the cutting unit is also blocked at the same time, so that the yarn connected between the bobbin setting device and the yarn storage device is cut. Can not do it. By removing the yarn by the yarn suction unit, it is possible to eliminate the state where the yarn is connected between the yarn accumulating device and the bobbin setting device.

  The yarn winding machine includes a package discharge unit that discharges a package in which the yarn is wound around the bobbin. When the package ejection fails, the bobbin supply operation of the bobbin supply unit is blocked.

  This prevents the bobbin supply unit and the package from contacting each other when the package ejection fails. Further, even when the package ejection fails, it is possible to prevent the yarn winding machine from stopping while the yarn is connected between the bobbin setting device and the yarn storage device.

  The yarn winding machine includes a detection unit that detects that the yarn wound around the outer circumferential surface of the yarn accumulating roller has disappeared. When the yarn suction unit is sucking the yarn while the yarn storage roller is rotating, the detection unit detects that the yarn has disappeared from the outer peripheral surface of the yarn storage roller. The rotation of the yarn accumulating roller is stopped.

  Thereby, since the rotation of the yarn accumulating roller can be stopped at the timing when the accumulated yarn is lost, the time required for removing the yarn can be shortened.

  In the yarn winding machine, the yarn suction unit is configured to suck the yarn from a movable suction port. When the bobbin supply operation of the bobbin supply unit is prevented, the bobbin supply operation starts at the position of the suction port when the yarn suction unit sucks and removes the yarn from the yarn storage device. It is the same as the position of the suction port before being performed.

  Thereby, since it is not necessary to return the yarn suction portion to the original position after the yarn is sucked, the next operation can be performed quickly.

  The yarn winding machine includes a plurality of winding units and a work carriage. Each of the plurality of winding units includes the yarn supplying unit and the yarn accumulating device. The work carriage is configured to be able to travel with respect to the plurality of winding units and includes the bobbin setting device. When the bobbin supply operation of the bobbin setting device is blocked while the work carriage is stopped at a position corresponding to the winding unit, the yarn suction unit sucks the yarn from the yarn storage device. Then, the work carriage travels to the other winding unit.

  As a result, the state in which the yarn is connected between the winding unit and the work carriage can be automatically resolved, so that the work carriage can be moved to another winding unit and a new bobbin supply operation can be performed. it can.

  The yarn winding machine includes a plurality of winding units each including the yarn feeding unit, the yarn storage device, and a winding device that winds the yarn from the yarn storage device to form a package. When the bobbin supply operation of the bobbin setting device with respect to a certain winding unit is blocked, the winding of the yarn in the winding unit is stopped.

  Thereby, for example, when the cause of the blocked bobbin supply operation is not automatically resolved, it is possible to prevent the error from continuously occurring by stopping the winding of the yarn in the corresponding winding unit.

  The yarn winding machine includes a plurality of winding units each including the yarn supplying unit and the yarn accumulating device. When the bobbin supply operation of the bobbin setting device with respect to the winding unit is blocked, the yarn suction unit sucks and removes the yarn from the yarn storage device, and then Perform bobbin supply again.

  Thereby, for example, when the cause of the blocked bobbin supplying operation is automatically eliminated, the winding of the yarn can be started by performing the bobbin supplying operation again.

1 is a front view showing an overall configuration of a spinning machine according to an embodiment of the present invention. The longitudinal cross-sectional view of a spinning machine. FIG. 3 is a longitudinal sectional view showing a state where a fully wound package is received by a package discharge unit and a spun yarn generated by a spinning device is sucked by a yarn suction unit. The longitudinal cross-sectional view which shows a mode that the spun yarn which the yarn suction part attracted | sucked is guided to the vicinity of a cradle. The longitudinal cross-sectional view which shows a mode that a new bobbin is supplied to a cradle. The figure which shows a mode that the spun yarn which the yarn suction part is attracting | sucking after a new bobbin is fixed with a bobbin holder is cut | disconnected with a cutter. 7 is a flowchart showing a flow of processing for determining whether or not to prevent the supply of a new bobbin and removing the spun yarn wound around the yarn accumulating roller when it is determined to block the supply. The longitudinal cross-sectional view which shows the mode after it was judged that supply of a new bobbin was stopped. The longitudinal cross-sectional view which shows a mode that the production | generation of the spun yarn stopped and the yarn removal lever moved to the yarn removal position. The longitudinal cross-sectional view which shows a mode just before the removal of the spun yarn wound around the yarn storage roller is completed.

  Next, a spinning machine (yarn winding machine) according to an embodiment of the present invention will be described with reference to the drawings. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the yarn during spinning.

  A spinning machine 1 as a yarn winding machine shown in FIG. 1 includes a number of winding units 2 arranged side by side, a yarn joining cart (working cart) 3, a doffing cart 4, a blower box 93, and a motor box 5. And.

  The prime mover box 5 includes a machine base control device 30. The machine base control device 30 controls the plurality of winding units 2. Further, the machine base control device 30 includes a liquid crystal monitor 31 and an input unit 32. The liquid crystal monitor 31 displays information related to the operation status and / or yarn quality of each winding unit 2 by an appropriate operation of the operator. The input unit 32 includes a plurality of input keys. The input unit 32 is used for the operator to select information to be displayed on the liquid crystal monitor 31. The input unit 32 receives transmission of appropriate instructions to each winding unit 2 and setting of various conditions.

  As shown in FIG. 1, each winding unit 2 includes a draft device 7, a spinning device (yarn feeding unit) 9, a yarn storage device 12, and a winding device 13 in order from upstream to downstream. . The draft device 7 is provided in the vicinity of the upper end of the frame 6 provided in the spinning machine 1. The fiber bundle 8 sent from the draft device 7 is spun by the spinning device 9 (spinning operation). The spun yarn 10 delivered from the spinning device 9 passes through a yarn clearer 49 described later, and further passes through the yarn storage device 12. The package 45 is formed by winding the spun yarn 10 onto the bobbin 48 by the winding device 13.

  The draft device 7 extends the sliver 15 into a fiber bundle 8. As shown in FIG. 2, the draft device 7 includes four roller pairs: a back roller pair 16, a third roller pair 17, a middle roller pair 19, and a front roller pair 20. An apron belt 18 is attached to each roller of the middle roller pair 19.

  Although the detailed configuration of the spinning device 9 is not illustrated, the spinning device 9 of the present embodiment twists the fiber bundle 8 using the swirling air flow to generate the spun yarn 10.

  A yarn accumulating device 12 is provided downstream of the spinning device 9. The yarn storage device 12 has a function of applying a predetermined tension to the spun yarn 10 and pulling it out from the spun device 9, and retains the spun yarn 10 sent from the spinning device 9 at the time of yarn splicing by the yarn splicing carriage 3 for spinning. It has a function of preventing the slack of the yarn 10 and a function of adjusting the yarn tension so that fluctuations in the yarn tension on the winding device 13 side are not transmitted to the spinning device 9 side. As shown in FIG. 2, the yarn accumulating device 12 includes a yarn accumulating roller 21, a yarn hooking member 22, an upstream guide 23, an electric motor 25, a yarn removing lever (yarn removing member) 26, and a storage amount sensor. 27.

  The yarn storage roller 21 winds and stores the spun yarn 10 around its outer peripheral surface. The yarn accumulating roller 21 is rotationally driven by the electric motor 25 at a predetermined rotational speed.

  The yarn hooking member 22 can hook the spun yarn 10. The yarn hooking member 22 is supported so as to be rotatable relative to the yarn accumulating roller 21. Torque against the yarn accumulating roller 21 (resistance torque) is applied to the yarn hooking member 22 by torque generating means such as magnetic means. Accordingly, if the tension applied to the spun yarn 10 is strong enough to overcome this resistance torque, the yarn hooking member 22 rotates independently of the yarn accumulating roller 21 and unwinds the spun yarn 10 from the yarn accumulating roller 21. If the tension applied to the spun yarn 10 is weaker than the resistance torque, the yarn hooking member 22 rotates integrally with the yarn accumulating roller 21 and winds the spun yarn 10 around the yarn accumulating roller 21.

  The thread removal lever 26 is movable between a standby position and a thread removal position. When the yarn removal lever 26 is in the standby position, the yarn removal lever 26 is provided so as not to contact the yarn path. By moving the yarn removing lever 26 to the yarn removing position, the spun yarn 10 caught on the yarn hooking member 22 can be pushed up by the yarn removing lever 26 and the spun yarn 10 can be removed from the yarn hooking member 22.

  The upstream guide 23 is disposed slightly upstream of the yarn accumulating roller 21. The upstream guide 23 appropriately guides the spun yarn 10 with respect to the outer peripheral surface of the yarn accumulating roller 21. Further, the upstream guide 23 prevents the twist of the spun yarn 10 transmitted from the spinning device 9 from being transmitted downstream from the upstream guide 23.

  A yarn clearer 49 is provided on the front side of the frame 6 of the spinning machine 1 and at a position between the spinning device 9 and the yarn storage device 12. The spun yarn 10 generated by the spinning device 9 passes through the yarn clearer 49 before being wound by the yarn accumulating device 12. The yarn clearer 49 monitors the thickness of the traveling spun yarn 10 and, when a yarn defect in the spun yarn 10 is detected, transmits a yarn defect detection signal to a unit controller (not shown). The yarn clearer 49 may detect the presence or absence of foreign matter contained in the spun yarn 10 in addition to the abnormal thickness of the spun yarn 10.

  When the unit controller receives the yarn defect detection signal from the yarn clearer 49, the unit controller cuts the spun yarn 10 by stopping spinning by the spinning device 9, and further stops the draft device 7 and the like. Further, the unit controller sends a control signal to the yarn splicing cart 3 so as to travel to the winding unit 2. Thereafter, the unit controller drives the spinning device 9 and the like again to cause the yarn splicing cart 3 to perform yarn splicing, and resumes winding of the package 45 in the winding unit 2.

  As shown in FIGS. 1 and 2, the yarn joining cart 3 includes a splicer (yarn joining device) 43, a suction pipe 44, a suction mouth 46, and traveling wheels 42. The yarn joining cart 3 can travel with respect to the winding unit 2 by driving the traveling wheels 42 and traveling on the traveling lane 41 fixed to the frame 6. The yarn splicing carriage 3 travels to the winding unit 2 where the yarn breakage or the yarn cut has occurred, stops at a position where the yarn splicing is possible, and performs the yarn splicing.

  The suction pipe 44 is pivotable in the vertical direction around the axis, and sucks and captures the yarn end (upper yarn) delivered from the spinning device 9 and guides it to the splicer 43. The suction mouse 46 is pivotable in the vertical direction about the axis, and sucks and captures the yarn end (lower yarn) from the package 45 supported by the winding device 13 and guides it to the splicer 43. Although the detailed configuration of the splicer 43 is omitted, the upper yarn and the lower yarn are spliced together by twisting the yarn ends together by a swirling air flow.

  The winding device 13 includes a cradle 70, a winding drum 74, and a traverse guide 76.

  The cradle 70 includes a support shaft 73, a cradle arm 71 that can rotate around the support shaft 73, and a pair of bobbin holders 72 that can hold both ends of the bobbin 48.

  The winding drum 74 is driven in a state where it is in contact with the outer peripheral surface of the bobbin 48 or the outer peripheral surface of the package 45. The winding device 13 rotates the package 45 in contact with the winding drum 74 by driving the winding drum 74 by an electric motor (not shown), and reciprocates the traverse guide 76 by a driving means (not shown) The spun yarn 10 is wound while traversing.

  As shown in FIGS. 1 and 2, the doffing cart 4 includes a bobbin setting device 60. The bobbin setting device 60 supplies the bobbin 48 to the cradle 70 to prepare for winding the spun yarn 10, and removes the fully wound package 45 (winding is completed) from the cradle 70. And doffing work. The doffing carriage 4 has a traveling wheel 92 at the lower part thereof, and is formed on the frame 6 when receiving an instruction to perform a bobbin setting operation and / or a doffing operation with respect to a certain winding unit 2. The vehicle travels on the traveling path 91 to the winding unit 2. Then, the doffing cart 4 stops in front of the winding unit 2 that has received the instruction, and performs bobbin setting work or doffing work (or both work).

  The bobbin setting device 60 includes a yarn removal lever operation arm 87, a yarn suction unit 88, a cradle operation arm 89, a package discharge unit 61, package detection units 62 and 63, and a bobbin supply unit 50. .

  The thread removal lever operating arm 87 can move the thread removal lever 26 from the standby position to the thread removal position by pressing a contact portion (not shown) for rotating the thread removal lever 26.

  The yarn suction section 88 is rotatable and expandable and contractable, and sucks and captures the spun yarn 10 delivered from the spinning device 9 and guides the captured spun yarn 10 to the winding device 13. As shown in FIG. 2, the position of the yarn suction portion 88 when the yarn suction portion 88 is contracted (state when the doffing cart 4 is running) is referred to as “origin position”. Further, as shown in FIG. 3 described later, the position of the yarn suction portion 88 in a state where the yarn suction portion 88 extends and the suction port at the tip of the yarn suction portion 88 is close to the spinning device 9 is referred to as a “capture position”.

  The cradle operating arm 89 can separate one of the pair of bobbin holders 72 holding the bobbin 48 from the other by operating the cradle arm 71 provided in the winding unit 2. Thereby, the bobbin 48 held by the cradle 70 can be removed.

  The package discharging unit 61 guides the package 45 removed from the cradle 70 to the mounting unit 82 via the inclined unit 81.

  The package detection units 62 and 63 are optical sensors arranged in the vicinity of the traveling wheel 92 in the traveling direction of the doffing cart 4. The package detectors 62 and 63 receive reflected waves of light projected toward the cradle 70. By analyzing the detection results of the package detection units 62 and 63, it is possible to detect whether or not the package 45 is held in the cradle 70.

  The bobbin supply unit 50 can rotate about the rotation shaft 51 and can hold a bobbin 48 (bobbin around which a thread is not wound) by a bobbin holding unit 52. The doffing cart 4 rotates the bobbin supply unit 50 while holding the bobbin 48 to supply the bobbin 48 to the cradle 70. The bobbin supply unit 50 includes a bunch winding roller 53 for performing bunch winding, a cutter 54 for cutting the spun yarn 10 sucked by the yarn suction unit 88 (cutting unit, FIG. 6 described later), Is provided.

  Next, a flow when the bobbin setting device 60 performs the doffing operation and the bobbin setting operation will be described with reference to FIGS.

  First, the doffing operation will be described. When a sensor (not shown) detects that a package 45 of a winding unit 2 is full, the unit controller stops the spinning device 9 and causes the doffing carriage 4 to travel to the winding unit 2. . At almost the same time, the unit controller rotates the cradle arm 71 in the winding device 13 to the left side (front side of the device) in FIG. 3 to release the fully wound package 45 from the winding drum 74 and rotate the package 45. Control to stop.

  The package 45 continues to rotate due to inertia even after being separated from the winding drum 74. The bobbin setting device 60 stops the inertial rotation of the package 45 by bringing the package discharge portion 61 into contact with the package 45. Next, the bobbin setting device 60 drives the cradle operation arm 89 to separate one bobbin holder 72 from the other bobbin holder 72 and remove the full package 45 from the cradle 70. The removed fully-wrapped package 45 is guided to the mounting portion 82 by being rolled along the inclined portion 81 while the weight of the package 45 is supported by the package discharging portion 61.

  In the present embodiment, the mounting portion 82 has a function as a conveyor, and the package 45 is transported along the direction in which the winding units 2 are arranged and automatically sent to the next process. However, the mounting unit 82 may be configured not to have a conveyor function, and the package 45 on the mounting unit 82 may be manually collected by the operator. The doffing operation is performed as described above.

  Next, the bobbin setting operation will be described with reference to FIGS.

  The unit controller of the winding unit 2 resumes driving of the draft device 7 and the spinning device 9 when the doffing carriage 4 comes to the front of the winding unit 2 in response to a request. At substantially the same time, the yarn suction portion 88 is extended upward, and the position of the yarn suction portion 88 changes from the origin position to the capture position (see FIG. 3). The yarn suction unit 88 captures the yarn end of the spun yarn 10 delivered from the spinning device 9 by suction.

  The bobbin setting device 60 moves the yarn suction portion 88 downward while keeping the spun yarn 10 sucked (see FIG. 4). Since the suction force of the yarn suction portion 88 is small and does not overcome the resistance torque of the yarn storage device 12, the spun yarn 10 is stored in the yarn storage device 12, as shown in FIG.

  The bobbin setting device 60 keeps waiting at a predetermined position after moving the yarn suction portion 88 downward. In addition, the bobbin setting device 60 drives the cradle operation arm 89 to keep one bobbin holder 72 away from the other bobbin holder 72 until a new bobbin 48 is supplied. When the doffing operation and the bobbin setting operation are performed as a series of operations, the bobbin setting device 60 maintains the state where the cradle arm 71 is operated by the cradle operating arm 89 in order to remove the full package 45.

  Next, the bobbin setting device 60 grips the bobbin 48 stocked on the upper part of the dolly cart 4 with the bobbin supply unit 50 (bobbin gripping unit 52), and then rotates the bobbin supply unit 50 to the cradle 70. The bobbin 48 is supplied (bobbin supply operation). The bobbin setting device 60 operates an appropriate yarn guide mechanism (not shown) provided in the bobbin supply unit 50 to move the spun yarn 10 captured by the yarn suction unit 88 to the axial end of the bobbin 48 and the bobbin holder. 72.

  In this state, the bobbin setting device 60 drives the cradle operation arm 89 to bring one bobbin holder 72 closer to the other bobbin holder 72. Thereby, the spun yarn 10 is sandwiched and fixed between the end of the bobbin 48 and the bobbin holder 72. Thereafter, as shown in FIG. 6, the cutter 54 included in the bobbin setting device 60 (specifically, the bobbin supply unit 50) cuts the spun yarn 10 sucked by the yarn suction unit 88.

  Next, the bobbin setting device 60 releases the bobbin 48 by the bobbin gripping part 52 and brings the bunch winding roller 53 into contact with the bobbin 48 to perform bunch winding. When the bunch winding is completed, the bobbin supply unit 50 retreats to the doffing cart 4 side. Before and after that, the unit controller rotates the cradle 70 so that the bobbin 48 contacts the take-up drum 74 (on the back side of the take-up device 13). As a result, a winding tension is applied to the spun yarn 10, the spun yarn 10 is gradually unwound from the yarn accumulating roller 21, and winding of the package 45 by the winding device 13 is started.

  Next, control performed when the bobbin supply operation is blocked will be described with reference to FIGS. The process illustrated in the flowchart of FIG. 7 is an example, and the order of some processes may be changed or deleted, two processes may be performed simultaneously, or other processes may be added.

  As described above, in the conventional yarn winding machine, when the bobbin supply operation is blocked after the yarn suction unit sucks the spun yarn and guides it to the vicinity of the cradle, the yarn is moved between the doffing carriage and the spinning unit. Are connected, and the operator needs to manually remove the yarn. In this regard, the spinning machine 1 of the present embodiment can automatically resolve this state. Hereinafter, a specific description will be given along the flowchart of FIG.

  The bobbin setting device 60 determines whether or not there is an ejection error of the package 45 after performing the doffing operation (S101) (S102). This determination is made based on the detection results of the package detection units 62 and 63. When the package 45 cannot be discharged, the bobbin supply operation is blocked in order to prevent contact between the newly supplied bobbin 48 and the package 45 (S106). At this stage, the yarn suction unit 88 sucks the spun yarn 10 and guides it to the vicinity of the cradle 70. When the bobbin supply operation is blocked, the bobbin setting device 60 returns the yarn suction portion 88 to the origin position (see FIG. 8).

  Further, when there is no mistake in discharging the package 45, the bobbin setting device 60 determines whether there is an abnormality in the bobbin supply unit 50 (S103). The abnormality of the bobbin supply unit 50 referred to here is a state in which the bobbin supply unit 50 cannot supply a new bobbin 48, for example, when there is a drive system abnormality and / or there is no new bobbin 48 stock. If there is an abnormality in the bobbin supply unit 50, the bobbin supply operation is blocked (S106).

  The bobbin setting device 60 performs the bobbin supply operation (S104) and winds the spun yarn 10 as described with reference to FIGS. 3 to 6 when there is no discharge error of the package 45 and abnormality of the bobbin supply unit 50. Processing for starting (bunch winding or the like) is performed (S105).

  On the other hand, when the bobbin supply operation is blocked, the unit controller stops spinning by the spinning device 9 (S107). As a result, the spun yarn 10 generated by the spinning device 9 cannot withstand the tension and is cut so as to be torn off (see FIG. 9). The cut spun yarn 10 is wound around the yarn accumulating roller 21.

  Next, the unit controller stops the rotation of the yarn accumulating roller 21 (S108). Thereafter, the bobbin setting device 60 operates the thread removal lever operation arm 87 to move the thread removal lever 26 to the thread removal position (S109). As a result, the spun yarn 10 is detached from the yarn hooking member 22. In this state, by rotating the yarn storage roller 21 again (S110), the yarn suction portion 88 located at the origin position can suck and remove the spun yarn 10 from the yarn storage device 12 (FIG. 10). See). Therefore, in this embodiment, the position of the yarn suction portion 88 (specifically, the position of the suction port at the tip) is determined before the bobbin supply operation is started and when the spun yarn 10 is sucked and removed. Are the same.

  After starting the removal of the spun yarn 10 wound around the yarn accumulating roller 21, the unit controller determines whether or not the spun yarn 10 has been successfully removed (S111). Specifically, the unit controller detects when the storage amount sensor 27 (detection unit) included in the yarn storage device 12 does not detect the spun yarn 10 or after a predetermined time since the spun yarn 10 is not detected (that is, the yarn storage). At the timing when the spun yarn 10 disappears from the outer peripheral surface of the roller 21, it is determined that the spun yarn 10 has been successfully removed. In response to this determination, the rotation of the yarn accumulating roller 21 is stopped, and the yarn removing lever 26 is moved to the standby position (S112).

  The configuration for determining that the spun yarn 10 has been successfully removed (the spun yarn 10 has been removed from the outer peripheral surface of the yarn accumulating roller 21) is arbitrary. For example, the spun yarn 10 is detected inside the yarn suction portion 88. It is also possible to determine that the removal of the spun yarn 10 has been successful at the timing when the spun yarn 10 is no longer detected.

  By performing the control as described above, even if the bobbin supply operation is blocked and the spun yarn 10 is connected between the winding unit 2 and the doffing carriage 4, the spun yarn 10 is automatically removed. can do. In the present embodiment, when the bobbin supply operation is blocked, it is determined that it is difficult to wind the spun yarn 10 with the winding unit 2, and thereafter, the spun yarn 10 with the winding unit 2 is wound. Winding is not performed (the formation of a new package 45 in the winding unit 2 is stopped) (S113). Thereafter, if there is a request from another winding unit 2, the doffing cart 4 travels to the corresponding winding unit 2 in response to the request (S114).

  In addition, when the unit controller determines in step S110 that the spun yarn 10 wound around the yarn accumulating roller 21 has not been successfully removed (failed) (for example, when it cannot be determined to be successful within a predetermined time), After that, by transmitting the fact to the machine control device 30 or the like, the winding unit 2 does not wind the spun yarn 10 (the formation of a new package 45 in the winding unit 2 is stopped). (S115). Before and after that, the operator is notified of the occurrence of an error (S116).

  In the above embodiment, the bobbin supply operation is blocked once, and processing is performed so as not to wind the spun yarn 10 in the corresponding winding unit 2 thereafter. However, when the bobbin supply operation is continuously prevented, for example, a predetermined number of times (for example, twice), it is possible to perform processing so as not to wind the spun yarn 10 in the corresponding winding unit 2 thereafter. . Therefore, for example, when the bobbin supply operation is first blocked, the process described above is performed to remove the spun yarn 10 of the yarn accumulating roller. Thereafter, the bobbin setting device 60 performs the bobbin supply operation again. When the second bobbin supply operation is performed, if the cause of the discharge error of the package 45 or the abnormality of the bobbin supply unit 50 has been resolved, a new bobbin 48 is supplied and winding of the spun yarn 10 is started. can do. If the second bobbin supply operation is also prevented, the bobbin supply operation and the spun yarn of the yarn storage roller 21 are continued until the bobbin 48 is successfully supplied or until the number of times the bobbin supply operation is blocked reaches a predetermined number. The removal of 10 may be repeated.

  In addition, when the bobbin supply operation is prevented even once, the unit controller displays “bobbin supply” on a display unit (not shown) provided for each winding unit 2 regardless of whether or not the removal of the spun yarn 10 is successful. “Operation blocked” is displayed. The operator can grasp the state of the winding unit 2 by confirming this display. In place of this configuration, even if the bobbin supply operation is blocked, if the removal of the spun yarn 10 is successful, the message “bobbin supply operation has been blocked” is not displayed, and the spun yarn 10 After the first removal has failed, “bobbin supply operation has been blocked” may be displayed. Further, the display may be performed using the liquid crystal monitor 31 of the machine base control device 30 and / or the display unit (not shown) of the doffing cart 4.

  As described above, the spinning machine 1 according to this embodiment includes the spinning device 9, the yarn storage device 12, and the bobbin setting device 60. The spinning device 9 supplies the spun yarn 10. The yarn storage device 12 stores the spun yarn 10 supplied from the spinning device 9. The bobbin setting device 60 sets the bobbin 48 for winding the spun yarn 10 on the downstream side of the yarn storage device 12 (the cradle 70 of the winding device 13). The bobbin setting device 60 includes a yarn suction unit 88 and a bobbin supply unit 50. The yarn suction unit 88 can suck and remove the spun yarn 10. The bobbin supply unit 50 performs a bobbin supply operation for supplying the bobbin 48 in order to set the bobbin 48. When the bobbin supply operation of the bobbin supply unit 50 is blocked, the yarn suction unit 88 sucks and removes the spun yarn 10 from the yarn storage device 12.

  As a result, even if the bobbin supply operation of the bobbin supply unit 50 is blocked due to a malfunction or the like, the yarn suction unit 88 sucks and removes the spun yarn 10 from the yarn storage device 12, so that the doffing cart 4 ( The state where the spun yarn 10 is connected between the bobbin setting device 60) and the winding unit 2 (yarn storage device 12) can be automatically eliminated.

  The yarn storage device 12 of this embodiment includes a yarn storage roller 21, a yarn hooking member 22, and a yarn removal lever 26. The yarn accumulating roller 21 is driven to rotate. The yarn hooking member 22 rotates in a state where the spun yarn 10 is hung, thereby winding the spun yarn 10 supplied from the spinning device 9 and winding the spun yarn 10 around the outer peripheral surface of the yarn accumulating roller 21. The yarn removing lever 26 performs a yarn removing operation for removing the spun yarn 10 from the yarn hooking member 22. When the bobbin supply operation of the bobbin supply unit 50 is blocked, after the rotation of the yarn accumulating roller 21 is stopped and the yarn removing operation is performed by the yarn removing lever 26, the yarn accumulating roller 21 is rotated and the yarn is sucked. The part 88 sucks and removes the spun yarn 10 from the yarn accumulating roller 21.

  Thereby, by providing the yarn hooking member 22 and the yarn removing lever 26, the state where the spun yarn 10 is wound around the yarn accumulating roller 21 and the state where the spun yarn 10 is removed from the yarn accumulating roller 21 can be easily switched. . Therefore, the spun yarn 10 remaining on the yarn accumulating roller 21 can be removed by a simple process.

  In this embodiment, when the bobbin supply operation of the bobbin supply unit 50 is blocked, the spinning operation by the spinning device 9 is stopped.

  Thereby, the spun yarn 10 connected from the spinning device 9 to the yarn accumulating device 12 can be cut without using a cutter or the like.

  In the present embodiment, the bobbin supply unit 50 includes a cutter 54 that cuts the spun yarn 10.

  Thus, when the bobbin supply part 50 is provided with the cutter 54, since the process of the cutter 54 is also simultaneously blocked when the bobbin supply operation is blocked, the bobbin setting device 60 and the winding unit 2 are connected. The spun yarn 10 cannot be cut. By removing the spun yarn 10 by the yarn suction unit 88, it is possible to eliminate the state where the spun yarn 10 is connected between the yarn accumulating device 12 and the bobbin setting device 60.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the above embodiment, the bobbin supply operation and the malfunction of the bobbin supply unit 50 are cited as factors that prevent the bobbin supply operation. However, the bobbin supply operation may be blocked based on other factors. Further, the configuration for detecting a discharge error of the package 45 and the configuration for detecting an abnormality in the bobbin supply unit 50 are arbitrary and can be changed as appropriate. For example, as a configuration for detecting a discharge error of the package 45, a load applied to the cradle 70 may be acquired, and whether or not the package 45 is attached to the cradle 70 may be detected based on this load. Further, a contact sensor (a sensor that detects that something has contacted) is provided at the tip of the bobbin holder 72, and whether or not the cradle 70 is holding the package 45 is detected based on the detection result of the contact sensor. good.

  In the above embodiment, the bobbin supply unit 50 includes the cutter 54. However, if the operation of the cutter 54 is stopped when the bobbin supply operation is blocked, the cutter 54 is separated from the bobbin supply unit 50. May be provided.

  In the above embodiment, the processing of the flowchart in FIG. 7 is executed by the control device and unit controller of the bobbin setting device 60. However, the apparatus for executing the process is not particularly limited. For example, the machine control device 30 may execute at least a part of the above processing.

  In the above embodiment, the bobbin setting device 60 is movable with respect to the plurality of winding units 2, but the bobbin setting device 60 may be provided for each winding unit 2. The spinning machine 1 includes a plurality of winding units 2, but may have a configuration including only one winding unit.

  The configuration of the present invention is not limited to the spinning machine but can be applied to other types of yarn winding machines (for example, automatic winders). When applied to an automatic winder, a device that supports a yarn supplying bobbin corresponds to the yarn supplying unit.

1 Spinning machine (yarn winding machine)
2 Winding unit 9 Spinning device (yarn feeding unit)
DESCRIPTION OF SYMBOLS 10 Spinning yarn 12 Yarn storage device 48 Bobbin 21 Yarn storage roller 26 Thread release lever
50 Bobbin supply unit 60 Bobbin setting device 88 Thread suction unit

Claims (10)

A yarn supplying section for supplying yarn;
A yarn storage device for storing the yarn supplied from the yarn supply unit;
A bobbin setting device for setting a bobbin for winding the yarn on the downstream side of the yarn storage device;
With
The bobbin setting device is
A yarn suction part capable of sucking and removing the yarn;
A bobbin supply unit that performs a bobbin supply operation for supplying the bobbin to set the bobbin;
With
When the bobbin supply operation of the bobbin supply unit is blocked, the yarn suction unit sucks and removes the yarn from the yarn storage device. The yarn winding machine according to claim 1,
The yarn storage device
A yarn storage roller that is driven to rotate;
A yarn hooking member that winds the yarn supplied from the yarn supplying section and winds the yarn around the outer peripheral surface of the yarn accumulating roller by rotating in a state where the yarn is hung.
A yarn removing member that performs a yarn removing operation to remove the yarn from the yarn hooking member;
With
When the bobbin supply operation of the bobbin supply unit is blocked, after the rotation of the yarn accumulating roller is stopped and the yarn removing operation by the yarn removing member is performed, the yarn accumulating roller is rotated, The yarn winding machine, wherein the yarn suction unit sucks and removes the yarn from the yarn accumulating roller. A yarn winding machine according to claim 2,
The yarn supplying unit is an air spinning device,
When the bobbin supply operation of the bobbin supply unit is blocked, the spinning operation by the pneumatic spinning device is stopped. A yarn winding machine according to any one of claims 1 to 3,
The bobbin supply unit includes a cutting unit that cuts the yarn. A yarn winding machine according to any one of claims 1 to 4,
A package discharge unit for discharging the package in which the yarn is wound around the bobbin;
The bobbin supply operation of the bobbin supply unit is blocked when the package is unsuccessfully discharged. A yarn winding machine according to claim 2 or 3,
A detection unit for detecting that the yarn wound around the outer peripheral surface of the yarn storage roller is lost;
When the yarn suction unit is sucking the yarn while the yarn storage roller is rotating, the detection unit detects that the yarn has disappeared from the outer peripheral surface of the yarn storage roller. A yarn winding machine characterized in that the rotation of the yarn accumulating roller is stopped. A yarn winding machine according to any one of claims 1 to 6,
The yarn suction unit is configured to suck the yarn from a movable suction port,
When the bobbin supply operation of the bobbin supply unit is prevented, the bobbin supply operation starts at the position of the suction port when the yarn suction unit sucks and removes the yarn from the yarn storage device. A yarn winding machine having the same position as the suction port before being wound. A yarn winding machine according to any one of claims 1 to 7,
A plurality of winding units each provided with the yarn supply section and the yarn storage device;
A work carriage configured to be able to travel with respect to the plurality of winding units, and provided with the bobbin setting device;
With
When the bobbin supply operation of the bobbin setting device is blocked while the work carriage is stopped at a position corresponding to the winding unit, the yarn suction unit sucks the yarn from the yarn storage device. And then the work carriage travels to the other winding unit. A yarn winding machine according to any one of claims 1 to 7,
A plurality of winding units each including the yarn supply unit, the yarn storage device, and a winding device that winds the yarn from the yarn storage device to form a package;
When the bobbin supply operation of the bobbin setting device with respect to a certain winding unit is blocked, the winding of the yarn in the winding unit is stopped. A yarn winding machine according to any one of claims 1 to 7,
A plurality of winding units each including the yarn supplying section and the yarn accumulating device;
When the bobbin supply operation of the bobbin setting device with respect to the winding unit is blocked, the yarn suction unit sucks and removes the yarn from the yarn storage device, and then A yarn winding machine characterized by performing a bobbin supply operation again.

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