JPH07975U - Bunch winding device - Google Patents

Abstract

(57) [Summary] [Purpose] To detect the number of bunch windings during bunch winding processing. [Structure] A feed claw member 1 that relatively moves to a roll winding side while engaging with a bunch yarn feeding 1a between a bunch roll winding 1b and a main winding 22.
5 and a sensor 16 for detecting a change in posture of the feeding claw member 15 when the feeding claw member 15 is braked by the tension of the bunch yarn feeding 1a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bunch winding device for a package manufactured by a take-up winder or the like.

[0002]

[Prior art]

 The bunch winding device is proposed as a device for cutting and removing the bunch winding yarn of the package from the main winding, leaving a predetermined length, and sealing and fixing only the necessary yarn end to the paper tube (Japanese Patent Laid-Open No. 4-313565). No.

[0003]

[Problems to be solved by the device]

 By the way, there is some variation in the shape of the bunch winding thread formed on the paper core of the package. On the other hand, considering the case of using it as a continuous yarn by connecting it to the surface layer yarn (winding end yarn end) of the adjacent package P in a state where it is inserted into the creel in the subsequent process, the minimum required end yarn at the beginning of winding is considered. The length is naturally determined. Therefore, in the automatic bunch winding process, it is desirable to select and exclude a package in which the number of bunch winding yarns from the main winding is less than a predetermined value, but it has a function to detect such bunch winding yarns. There has never been a bunch winding device.

Therefore, the present invention was devised to provide a bunch winding processing device capable of detecting the number of windings of the bunch winding yarn.

[0005]

[Means for Solving the Problems]

 According to the present invention, a yarn engaging member that moves relative to the bobbin winding side while engaging with the bunch yarn feeding between the bunch rod winding and the main winding, and the yarn engaging member is braked by the tension of the bunch yarn feeding. And a posture detecting means for sensing the posture change.

[0006]

With the above configuration, the yarn engagement member is braked by the increase in tension when the bunch yarn is approaching the bunch winding while being relatively moved to the winding side. The posture detecting means detects a change in posture due to braking of the thread engaging member and determines whether the number of windings is insufficient.

[0007]

【Example】

 An embodiment of a bunch winding processing device according to the present invention will be described below with reference to the accompanying drawings.

First, the entire bunch winding processing device will be described with reference to FIGS. 3 and 4. This bunch winding device is installed in a processing station S equipped with a package transport line L, and includes a yarn pulling mechanism 3 and a seal for fixing the bunch winding yarn 1 of the package P to the surface of the paper tube 2. A sticking mechanism 4, a thread cutting mechanism 5 for appropriately cutting the bunch winding thread 1, and a thread removing mechanism 6 for sucking and gripping the cut thread are mainly configured.

As shown in FIG. 4, the package P is rotatably supported on a peg table 8 that moves in a direction perpendicular to the plane of the drawing by a conveyer 7, and an axis 9 of the package P is inclined slightly obliquely from the horizontal direction. The end of the tube 2 on the bunch winding side is held so as to face upward. Above the stop position of the package P, a support frame 11 whose one end side is fixed to the base 10 extends in the transport transverse direction and parallel to the axis of the package P. The support frame 11 is attached with the seal attaching mechanism 4 arranged almost directly above the package P, and the other end thereof is provided with a base plate 12 which reciprocates in the direction of the axis 9 of the package P. There is. The sticker sticking mechanism 4 is a known sticker which sticks sticker having an adhesive surface to the target position one by one by lowering the arm 13 and is set so that the sticker is stuck to a predetermined position at the end of the paper tube. ing. Further, the base plate 12 is provided with a cone-shaped paper tube chuck 14 held on the axis 9 of the paper tube 2, and the tip of the cone-shaped paper tube chuck 14 is fitted into the paper tube 2 as the base plate 12 moves closer. , And holds the package P. In the vicinity of the paper tube chuck 14, a yarn pulling mechanism 3 including a feed claw member 15 as a yarn engaging member and a sensor 16 as a posture detecting means, which are features of the present invention, is arranged.

As shown in FIGS. 1 and 2, the yarn pulling mechanism 3 includes a feed claw member 15 whose tip 24 is in contact with the peripheral side surface of the end portion of the bunch-wound paper tube 2, and a paper tube chuck 14. A moving block 18 provided on the shaft 17, a vertical cylinder 19 provided on the moving block 18 for moving the feeding pawl member 15 up and down, a rotating means 20 for rotating the package P about the axis, It is mainly configured by a sensor 16 provided on the base end side of the claw member 15. The bunch winding thread 1 is wound into a slit formed in the paper tube at the beginning of winding, and is wound in a stack. The bunch winding 1b and the bunch winding 1b are spirally wound into a main winding (thread layer) 22. Since the package P of this type is continuously wound up by a take-up winder, the number of windings of the bunch feeding yarn 1a and the bunch rod winding 1b to the bunch feeding yarn 1a. The position 21 at which the bunches come out and the position 23 at which the bunch yarn feeding 1a enters (traverses) the main winding 22 are different depending on the individual packages P.

The feed claw member 15 is made of a strip-shaped plate extending substantially parallel to the axis 9, and the tip 24 thereof is bent obliquely downward so that the top portion of the side surface around the two sides of the paper tube (the position of the axis 9 at the position of the axis 9 when viewed from above). (Nearby). The shaft 17 of the paper tube chuck 14 extends along the axis 9 and is rotatably supported by the base plate 12 via a bearing block 25, and the other end penetrates the base plate 12. A screw 26 is cut in the middle of the shaft 17, and the moving block 18 is screwed into the screw 26. The movable block 18 is provided with a detent rod 28 that extends in parallel with the shaft 17 and is fitted into the shaft hole 27 of the bearing block 25. Therefore, the feed claw member 15 is adapted to move forward and backward in the direction of the axis 9 in synchronization with the forward and reverse rotation of the shaft 17 about its axis. The up-and-down cylinder 19 is attached to a side portion of the moving block 18, and a bracket 31 is attached to a tip end portion 30 of the advancing and retracting rod 29 thereof. A vertical axis 32 is erected on the bracket 31, and a feed claw member is swingably supported on the vertical axis 32. A coil spring 33 having one end fixed to the bracket 31 and the other end engaged with the feed claw member 15 is provided around the vertical axis 32, and biases the feed claw member 15 counterclockwise in FIG. . The bracket 31 is provided with a stopper 34 that comes into contact with a side portion of the bracket 31 so as to hold the biased feed claw member 15 substantially in the direction of the axis 9.

The rotating means 20 includes a sprocket 35 attached to the extended end of the shaft 17, a rotation motor 36 attached to the base plate 12, a sprocket 38 attached to its output shaft 37, and a sprocket 35. , 38, and a chain 39 stretched between the shafts 38, 38, so that the shaft 17 is rotated in the direction A opposite to the winding rotation direction of the package P. The pitch of the screw 26 is set to about 1/2 of the average value of the winding pitch p of the bunch feeding yarn 1a. That is, regardless of the winding shape of the bunch yarn feeder 1a in the package P, when the package P is rotated twice in the anti-winding direction A, for example, as shown by the chain double-dashed line in FIG. The two-wrapped bunch yarn 1a comes into contact with the tip 24, and as the feeding claw member 15 slides, the yarns are arranged in a spiral shape at equal intervals without overlapping. Accordingly, the yarn path extends from the tip 24 of the feed claw member 15, and the sticking position of the seal (shaded portion 40 in FIG. 2) and the cutting position (broken line 41 in the drawing) are the feed after sliding. It can be set near the tip 24 of the claw member 15.

The sensor 16 has a U-shape that sandwiches the base end portion 42 of the feed claw member 15 in the vertical direction, and is attached to the bracket 31 while being appropriately separated from the base end portion 42 in the clockwise direction. . That is, if the number of windings of the bunch feeding yarn 1a is less than two, the tip 24 of the feeding claw member 15 during the sliding, the bunch feeding yarn 1a comes out from the bunch rod winding 1b at a point 21 or before that point. The tension prevents the feed claw member 15 from swinging clockwise. The sensor 16 detects the swing of a certain amount or more, issues an alarm, and interrupts the subsequent processing.

In addition, as shown in FIG. 3, the yarn cutting mechanism 5 is arranged in the vicinity of the downstream side in the rotation direction A with respect to the feed claw member 15, and has a heat cutter 44 having a tip portion 43 to be heated, It is composed of a cutter moving cylinder 45 for moving the heat cutter 44 to the paper tube 2 side. The cutter moving cylinder 45 is attached to the base plate 12 via a bracket 46, and a holding bracket 47 attached to an advancing / retreating rod (not shown) of the cylinder moves the heat cutter 44 obliquely with respect to the axis 9. Hold on. By the extension, the tip end portion 43 of the heat cutter 44 approaches or contacts the cutting position 41. Instead of the heat cutter 44, a cutter having a thread cutting blade may be provided.

As shown in FIG. 2, the cutting position 41 needs to be in the vicinity of the seal attaching position 40 and in the range 48 where there is no slit on the circumference of the paper tube 2. Therefore, for example, the cutting target point (processing start origin) in the package P is preliminarily positioned by the paper tube position allocating device (see Japanese Utility Model Laid-Open No. 5-3270) previously proposed by the applicant. I shall. In this paper tube position indexing device, an axial groove (or color mark) is formed in a part of the non-slit area 48 on the peripheral side surface of the paper tube 2, and a convex rotation that engages with the groove is formed. The position is detected by a position sensor (or color sensor).

Next, the yarn removing mechanism 6 is arranged in the vicinity of the feed claw member 15 on the side opposite to the heat cutter 44, and is configured as an air sucker that sucks the yarn by an air force. The suction mouth 50 of the suction mouth 49 is held so as to approach the peripheral side surface of the paper tube 2, and the suction and the rotational movement are repeated in cooperation with the rotation of the package P by the paper tube chuck 14. Thus, the yarn cut along the entire circumference of the paper tube 2 is sucked and removed. Further, in this embodiment, a yarn bundle pressing member 51 is provided for preventing the yarn at a position apart from the suction port 50 from being caught when the yarn is sucked.

As shown in FIG. 5, the suction mouth 49 has a passage 52 for sucked air B therein, and a twisting nozzle portion 53 located in the vicinity of the suction port 50 and a discharge pipe 54. A suction nozzle portion 56 located near the base end side opening 55 to be connected and a thread chucker 57 located in the middle of the nozzle portions 53, 56 are provided. The suction nozzle portion 56 has an annular air pressure chamber 58 formed coaxially with the suction air passage 52, and a cone body 59 formed inside the air pressure chamber 58. The air ejection passage is formed so as to be inclined toward the base end side. 60, the air is jetted toward the base end side by the supply of the compressed air C to substantially form the suction air B. As shown in FIG. 6, the twisting nozzle portion 53 is composed of a concave chamber 61 that is formed coaxially with the suction air passage 52 and is supplied with compressed air C, and a nozzle pipe 62 that defines the suction port 50. The nozzle pipe 62 is provided with a nozzle hole 63 extending from the concave chamber 61 to the suction air passage 52 in the circumferential tangential direction and in the suction direction. That is, a swirling flow is generated in the suction air passage 52, and several yarns to be sucked are collectively twisted. The number of the nozzle holes 63 is not limited to four as shown in the figure, and may be any number as long as a swirl flow can be formed. The thread chucker 57 is composed of a cylinder 64 provided in a direction traversing the suction air passage 52 and a chuck body 66 attached to the tip of the advancing / retreating rod 65. The chuck body 66 sandwiches the suction air passage 52. By appropriately contacting the gripping blocks 67 facing each other, the sucked yarn bundle is gripped or released at a predetermined timing. That is, by repeating air suction, gripping of the chuck, rotation of the package, and release of gripping the chuck, the cut bunch winding is removed from the paper tube over the entire circumference.

As shown in FIGS. 3 and 7, the yarn bundle pressing member 51 is provided on the upstream side in the rotation direction A with respect to the suction mouth 49, and has a sliding contact portion 68 that is in contact with the peripheral side surface of the paper tube 2 at one end. The lever plate is formed as a substantially U-shaped lever plate. The sliding contact portion 68 is bent along the peripheral side surface of the paper tube 2, and a pad 69 having a size that covers at least the bunch bar winding 1b is attached to the bent surface. A vertical pin 70 is attached to the other end of the yarn bundle pressing member 51, and is rotatably supported by the bearing block 25 via a bracket 71. An advancing / retreating rod 73 of a swing cylinder 72 attached to the base plate 12 is pivotally supported at a corner on the other end side via a bracket 74, and the extension / contraction of the rod 73 causes the yarn bundle pressing member 51 to swing horizontally. It is designed to let you. That is, when the yarn is sucked by the suction mouth 49, the yarn bundle pressing member 51 is swung clockwise in FIG. 7 so that the sliding contact portion 68 is pressed against the peripheral side surface of the paper core of the rotating package P. There is. The material of the pad 69 is not limited to the elastic body and may be a metal as long as it has an appropriate frictional force that prevents the sucked yarn bundle from coming off.

In addition, the bunch winding processing device is provided with a control panel (not shown) for automatically operating the cylinders 19, 45, 64, 72, the rotation motor 36, etc. at a predetermined timing. The interlocking control is performed according to the operation of a sensor (not shown) that detects the position of the chain 39 and the moving block 18.

Next, the operation of this embodiment will be described.

When the package P transported by the transport conveyor 7 is stopped at the position of the station S, the paper tube chuck 14 is fitted to the end portion of the paper tube 2 due to the approach movement of the base plate 12, The paper tube 2 is gripped. Next, the feed claw member 15 is lowered by the operation of the up-and-down cylinder 19, and the tip 24 of the feed claw member 15 comes into contact with the peripheral side surface of the paper tube 2. Then, the paper tube chuck 14 is rotated by the drive of the rotation motor 36, which causes the package P to rotate twice in the predetermined direction A. By this rotation, the feed claw member 15 slides in the direction away from the main winding 22 of the package P, and the bunch thread 1a is engaged with the tip 24 of the feed claw member 15. When this rotation is completed, the yarn path of the bunch yarn feeder 1a is arranged in a spiral shape at substantially equal intervals from the position of the tip 24 of the feeding claw member 15 to the main winding 22. In this process, when the feeding claw member 15 swings by a predetermined amount due to the tension of the bunch yarn feeding 1a, the sensor 16 senses this and the number of windings of the bunch feeding yarn 1a is not more than two. Judgment is made and an alarm is issued, and the subsequent processing is interrupted, and the operator is called for other processing.

When the alignment of the bunch thread 1a is completed, the arm 13 of the sticker attaching mechanism 4 descends to the vicinity of the tip 24 of the feed claw member 15, that is, from the main roll 22 of the aligned bunch thread 1a. A seal is attached at a position separated by the length and fixed to the paper tube 2. Next, the package P is appropriately rotated to move the seal portion to a position facing the heat cutter 44, and then the tip portion 43 of the heated heat cutter 44 is brought closer to or in contact with the cutter moving cylinder 45. , Bunch feeding 1a The vicinity of the seal and the bunch barb 1b are cut. When this cutting is completed, the cutter moving cylinder 45 retracts and the heat cutter 44 returns to the original position.

When the bunch yarn feeding 1 a and the bunch winding 1 b are cut, the yarn bundle pressing member 51 is swung by the operation of the swing cylinder 72, and the sliding contact portion 68 is appropriately separated from the cutting position 41. Hold the paper core position. Then, the free air is sucked by the suction air B of the suction mouth 49. At this time, the swirling flow formed by the twisting nozzle part 53 bundles the cut bunch yarn 1a and the yarn of the bunch bar winding 1b wound on the slit, and the swirling force causes the slit to wind. The thread of the bunch barb 1b that has entered is pulled out. When the yarn in the portion not held by the yarn bundle pressing member 51 is sucked by the suction air B, the yarn chucker 57 operates the cylinder 64 to hold the yarn bundle that has entered the suction air passage 52. The rotation motor 36 is driven to rotate the package P by a predetermined angle, for example, 45 degrees. After this rotation, the yarn chucker 57 releases the grip of the yarn bundle, newly sucks the yarn separated from the yarn bundle pressing member 51, and thereafter repeats this operation until the package P rotates once. Suction and pull around the paper tube 2 all around. This removes the bunch thread 1a and the bunch barb 1b other than the required length from the end of the paper tube 2.

As described above, since the feed claw member 15 whose tip 24 engages with the bunch yarn feeding 1a is formed swingably and the sensor 16 for detecting the base end portion 42 thereof is provided, the bunch yarn feeding 1a The number of turns can be detected by utilizing the fact that the tension increases and the feed claw member 15 receives a reaction force at a position close to the bunch barb 1b. That is, it is possible to select the package P in which the number of windings of the bunch feeding yarn 1a is insufficient, and it is possible to contribute to the improvement of the quality of the package P. The number of turns used as a criterion for determination can be freely selected by setting the number of rotations by the rotation motor 36. Further, since the bunch thread 1a is aligned by the feed claw member 15, the seal sticking position 40 and the cutting position 41 can be made constant, and the processing can be reliably performed.

Further, in this embodiment, the bunch thread 1a is fixed by sticking a seal, and the bunch thread 1a and the bunch winding 1b are cut by the heat cutter 44 in the vicinity thereof, and then the suction mouth 49 is cut. As a result, the suction air B in the substantially radial direction is made to act near the surface of the paper tube 2 and the bunch wound yarn 1 that has been cut is pulled in cooperation with the package rotation. You can pull it out without difficulty. That is, in the conventional bunch winding processing device, the bunch wound yarn 1 is pulled out in the axial direction for a long period of time and then fixed and cut, which may cause yarn breakage in the middle. According to this embodiment, yarn breakage at the portion beyond the seal is prevented, and the quality of the package P is improved.

In addition, since the twisting nozzle portion 53 forms a swirl flow in the suction mouth 49 to twist the sucked yarn bundle, there is no single yarn breakage, and the yarn that digs into the slit is not broken. It can be reliably removed. Then, the yarn bundle pressing member 51 is provided in the vicinity of the suction mouth so that the cut threads are sucked little by little, so that the yarn at a position away from the suction mouth 50 of the suction mouth 49 is sucked into the yarn bundle. It can be removed cleanly without the uncoupling of single yarns being cut or the yarns in the slits remaining in a fluffy shape.

The rotating means 20 may be any means that moves the feed claw member 15 and the peripheral side surface of the paper tube 2 relative to each other in the circumferential direction. The package P is fixed and the feed claw member 15 is fixed on the peripheral side surface. It may be configured to rotate along. Further, the mechanism for sliding is not limited to the screw and its screwed body, and any mechanism may be used as long as it is configured to move in the axial direction in synchronization with rotation.

Next, another embodiment of the present invention will be described with reference to FIG.

In this embodiment, an injection needle-shaped thin tube that is appropriately bent is used as the feed claw member 81 of the thread pulling mechanism, and the tip 82 is refracted so as to follow the surface of the paper tube 2 (FIG. 9). An air hose 83 for supplying compressed air is attached to the base end of the feed claw member 81, and by ejecting air from the tip, the tip 82 comes above the bunch yarn 1a when it comes into contact with the surface of the paper tube 2. It is designed so that you will not get on it.

The feed claw member 81 is swingably supported by the moving block 84 via a leaf spring 85 and an elastic tube 96. The leaf spring 85 biases the feed claw member 81 downward. A substantially upright air cylinder 86 is provided to raise the feed claw member 81 from the surface of the paper tube. The air cylinder 86 has an advancing / retreating rod 87 facing downward, and a tip of the advancing / retreating rod 87 is fixed to a base end of a leaf spring 85 by a U-shaped rod 88 with a bolt 89. The main body tubular portion 90 is connected to the tip end side of the leaf spring 85 by another U-shaped rod 91. That is, by controlling the supply of compressed air to the air cylinder 86, the main body cylinder portion 90 is raised by the extension of the advancing / retreating rod 87, and the feed spring member 81 is moved upward by lifting the leaf spring 85.

Further, a sheet 93 having a strip-shaped mark 92 extending in the longitudinal direction is attached to the upper surface of the feed claw member 81, and an optical sensor 94 for detecting the mark 92 is provided above the sheet 93. The optical sensor 94 is held by a leaf spring 85 via a bracket (not shown). Therefore, when the feed claw member 81 swings by a predetermined amount or more, the optical sensor 94 senses that there is no mark, so that it is determined that the number of windings is insufficient, and an alarm is issued.

With this configuration, the bunch thread 1a does not enter under the feed claw member 81, so that the bunch thread 1a can be more reliably aligned and the winding number can be detected with a relatively simple structure. . The other configurations and operational effects are similar to those of the above-described embodiment.

In the above embodiment, the sensor detects the swing of the feeding claw member, but the yarn engaging member changes its posture due to the increased tension of the bunch yarn feeding, and the posture detecting means detects the change. Any structure may be used as long as it can sense the change.

[0034]

[Effect of device]

 In short, according to the present invention, the excellent effect that the number of windings of the bunch winding yarn of the package can be detected during the bunch winding processing is exhibited.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a bunch winding processing device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of FIG. 1.

FIG. 4 is a side view showing the whole of FIG.

FIG. 5 is a side sectional view showing the suction mouse of FIG.

6 is a cross-sectional view of the main parts of FIG.

7 is a plan view showing the yarn bundle pressing member of FIG. 3. FIG.

FIG. 8 is a perspective view showing another embodiment of the present invention.

9 is a sectional view showing a main part of the feed claw member of FIG.

[Explanation of symbols]

 1a Bunch yarn feeding (bunch winding yarn) 1b Bunch rod winding (bunch winding yarn) 15 Feed claw member (thread engaging member) 16 Sensor (posture detecting means) 22 windings

Claims (1)

[Scope of utility model registration request] 1. A thread engaging member that relatively moves toward a bobbin while engaging with a bunch thread between the bunch winding and the main winding, and the thread engaging member is braked by the tension of the bunch thread. A bunch winding processing device comprising: a posture detecting means for detecting the posture change when the bunch winding process is performed.