JPH07978U - Bunch winding device - Google Patents

Abstract

(57) [Summary] [Purpose] To stably fix and cut the bunch thread. A thread comprising a feed claw member 21 that comes into contact with a peripheral side surface of an end portion of a paper tube 9 that is bunch-wound, and a rotation unit 22 that relatively moves the feed claw member 21 and the peripheral side surface in the circumferential direction. A moving mechanism 23 is provided.

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 present applicant has previously proposed a novel bunch winding processing device in Japanese Patent Application No. 3-76531 (Japanese Patent Application Laid-Open No. 4-313565). As shown in FIG. 15, according to this proposal, the bunch winding thread 3 of the package P held by the cone body 1 and the pressing tool 2 is pressed by the bunch thread guide 4 from the nip point 6 of the main winding 5 at a predetermined length. Then, after pulling out the remaining bunch winding yarn 3 from the paper tube 9 by the hook device 7 and the suction pipe 8, a sticker is attached to the pressed yarn to fix it, and the yarn removing device 10 collectively collects the yarns and heat cutter. It is made to contact and cut with 11, and the cut thread is sucked and removed by the suction pipe 8. With this configuration, the yarn end at the beginning of winding, which is left in the paper tube 9, can be processed without damage.

[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. Therefore, in the above-described bunch winding process, it is difficult to surely engage the yarn path with the yarn path, and there is a possibility that the process when fixing the bunch winding yarn 3 or cutting it thereafter may fail.

Therefore, in view of the above circumstances, the present invention was devised to provide a bunch winding processing device capable of stably fixing and cutting the bunch winding yarn.

[0005]

[Means for Solving the Problems]

 The present invention comprises a feed claw member that comes into contact with a peripheral side surface of a paper tube end portion that is bunch-wound, and rotation means for relatively moving the feed claw member and the peripheral side surface in the circumferential direction. It is equipped with a mechanism.

[0006]

[Action]

 With the above configuration, the yarn pulling mechanism causes the feeding claw member to relatively move by rotating the paper tube around the axis after the feeding claw member comes into contact with the peripheral side surface of the paper tube end portion. The bunch winding thread is engaged with and is moved to a predetermined position.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 and FIG. 2 show a first embodiment of a bunch winding processing device according to the present invention. This bunch winding device is a yarn pulling mechanism including a feed claw member 21 that comes into contact with the peripheral side surface of the end portion of the paper tube 9 that has been bunch wound, and a rotating means 22 for rotating the package P about its axis. It comprises 23.

The bunch winding yarn 3 has a winding start end wound on a slit formed in the paper tube 9 and is wound in a stack, and a bunch winding 3b is spirally wound from the bunch winding 3b (thread layer). ) 5 and the bunch thread 3a up to 5, and since this type of package P is continuously wound up by a take-up winder, the number of windings of the bunch thread 3a and the bunch barb 3b to the bunch thread 3a. The position 24 at which 3a exits and the position 6 at which the bunch yarn feed 3a enters (traverses) the main winding 5 differ depending on the individual package P. The package P to be processed is gripped by a paper tube chuck 26 provided on a base plate 25 that moves in the axial direction. The shaft 27 of the paper tube chuck 26 extends along the axis 28 of the paper tube 9 and is fixed via a bearing block 29 provided on the base plate 25.

The feed claw member 21 is made of a strip-shaped plate that extends substantially parallel to the axis 28 and is appropriately bent, and its tip 30 is bent in a U shape so that the tip of the peripheral side surface (in the vicinity of the axial line position when viewed from above). ) Is contacted. An up / down cylinder 31 extending in a direction intersecting with the shaft 27 is fixed to the bearing block 29, and a base end portion of the feed claw member 21 is attached to a tip end of an advance / retreat rod 32 thereof. That is, due to the contraction, the feed claw member 21 is lowered to bring the tip 30 thereof into contact with the vicinity of the bunch rod winding 3b of the paper tube 9.

The rotating means 22 is attached to a sprocket 33 attached to an extending end of a shaft 27 penetrating the base plate 25, a rotation motor 34 attached to the base plate 25, and an output shaft 35 thereof. It comprises a sprocket 36 and a chain 37 stretched between the sprockets 33, 36, and is rotated in the same direction A as the winding rotation direction of the package P.

The other end of the paper tube 9 of the package P is held by a rotatable peg (not shown).

Next, the operation of the first embodiment will be described.

By the approaching movement of the base plate 25, the tip of the paper tube chuck 26 is fitted inside the end of the paper tube 9, and the package P is gripped and fixed. As the vertical cylinder 31 contracts, the feed claw member 21 descends and its tip 30 abuts the peripheral side surface of the end of the paper tube 9. Next, the rotation motor 34 is operated to rotate the package P at least once through the shaft 27 and the paper tube chuck 26 (rotation direction A). Due to this rotation, the bunch yarn 3a is always brought close to the tip 30 of the feeding claw member 21 and its yarn path extends from the tip 30 to the main winding 5 side as shown by the chain double-dashed line in FIG. It becomes a state to go.

Therefore, the sticking position of the fixing seal of the bunch thread 3a may be near the upstream side in the rotational direction A of the tip 30 of the feeding claw member 21 (the hatched portion 38 in FIG. 2), and the bunch feeding is surely performed. The thread 3a can be fixed. Further, the cutting position of the bunch feed yarn 3a can be set to a position (indicated by a broken line 39 in FIG. 2) between the sticking position 38 and the tip 30 to achieve stable bunch processing.

As the rotating means, any means may be used as long as the feed claw member 21 and the peripheral side surface of the paper tube 9 are relatively moved in the circumferential direction. The package P is fixed and the feed claw member 21 is fixed to the peripheral side surface. It may be configured to rotate along.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

The feed claw member 42 of the yarn pulling mechanism 41 has a tip 43 bent obliquely downward so as to come into contact with the top of the paper tube 9, and the vertical cylinder 31 is provided in a shaft 44. Attached to the movable block 45. A screw 46 is cut on the shaft 44, and the moving block 45 is screwed onto the screw 46. The movable block 45 is provided with a rod 49 for preventing rotation which extends parallel to the shaft 44 and is fitted into the shaft hole 48 of the bearing block 47. Therefore, the feed claw member 42 is adapted to move back and forth in the direction of the axis 28 in synchronization with the forward and reverse rotation of the package P driven by the rotation motor 34. The pitch of the screw 46 is set to about 1/2 of the average value of the winding pitch p of the bunch yarn feeding 3a. That is, regardless of the winding shape of the bunch thread 3a in the package P, when the package P is rotated twice in the anti-winding direction B, as shown by the chain double-dashed line in the figure, one or two windings are always required. The bunch feeding yarn 3a of the bunch comes into contact with the tip end 43, and as the feeding claw member 42 slides, the yarns are aligned in a spiral shape at equal intervals without overlapping each other. Therefore, the yarn path extends from the tip 43 of the feeding claw member 42, and the sticking position 38 and the cutting position 39 of the seal can be set near the tip of the feeding claw member 42 after sliding. Other configurations and operational effects are the same as those of the first embodiment described above, and therefore, the same reference numerals are given in the drawings and description thereof is omitted.

By using the yarn pulling mechanism 41, the number of windings of the bunch yarn feeding 3a can be determined. That is, considering the case of using as a continuous yarn by connecting to the surface layer yarn (winding end yarn end) of the adjacent package P in a state where it is inserted into a creel in the subsequent process, the minimum required end yarn at the beginning of winding is considered. The length is fixed. Therefore, it is desirable to judge at this stage whether or not the package P 1 to be processed has this length.

5 and 6 show a yarn pulling mechanism 51 having a winding number determining function. A feed claw member 52 having substantially the same shape as that of the second embodiment is used to move the vertical cylinder 31 forward and backward. A bracket 53 attached to the rod 32 is swingably supported via a vertical axis 54, and a sensor 55 for detecting the swing is provided on the base end side. A coil spring 56 is provided around the vertical axis 54, one end of which is fixed to the bracket 53 and the other end of which is engaged with the feed claw member 52. The feed claw member 52 is provided on the side opposite to the rotation direction B (counterclockwise in the figure). ). The bracket 53 is provided with a stopper 57 that comes into contact with the side portion of the bracket 53 in order to hold the biased feed claw member 52 substantially in the direction of the axis 28. The sensor 55 has a U-shape that vertically sandwiches the base end portion of the feed claw member 52, and is normally attached to a position that is appropriately separated in the clockwise direction from the base end portion. That is, when the number of windings of the bunch yarn feeding 3a is less than the maximum of two, the tip 43 of the feeding claw member 52 during sliding is at the point 24 at which the bunch yarn feeding 3a comes out of the bunch rod winding 3b or before this. The yarn tension prevents the advancement, and the feed claw member 52 swings clockwise. The sensor 55 detects the swing of a certain amount or more, issues an alarm, and interrupts the subsequent processing. That is, it is possible to select the package P in which the number of windings of the bunch feeding yarn 3a is insufficient, and it is possible to contribute to the improvement of the quality of the package P. The other structure is the same as that of the second embodiment, and the description thereof will be omitted.

Next, a specific embodiment of the present invention will be described with reference to FIGS. 7 and 8.

In this specific embodiment, the bunch winding processing device shown in the second embodiment is installed in a processing station S provided with a package transfer line L, and the yarn pulling mechanism described above is used. In addition to 41, a sticker sticking mechanism 61 for sticking a seal to fix the aligned bunch thread 3a to the paper tube 9, a thread cutting mechanism 62 for cutting the bunch thread 3a, and a cut thread A thread removing mechanism 63 for sucking and gripping is provided.

As shown in FIG. 8, the package P is rotatably supported by a conveyor 64 for conveyance on a peg base 65 that moves in the direction perpendicular to the paper surface, and its axis 28 is slightly inclined from the horizontal, and The end of the tube 9 on the bunch winding side is held so as to face upward. Above the stop position of the package P, a support frame 67 whose one end side is fixed to the base 66 extends in the transverse direction of conveyance and parallel to the axis 28 of the package P. The support frame 67 is provided with a seal attaching mechanism 61 arranged substantially directly above the package P, and the base plate 25 is provided so as to be movable in the direction of the axis 28 of the package P. The sticker sticking mechanism 61 is a known sticker that sticks a sticker having an adhesive surface onto the target position one by one by lowering the arm 62, and sticks the sticker to a predetermined position (38) at the end of the paper tube 9. It is set. Further, the base plate 25 is provided with a paper tube chuck 26 held on an axis 28 of the paper tube 9, and a thread cutting mechanism 62 and a thread removing mechanism 63 are arranged in the vicinity thereof.

The thread cutting mechanism 62 is disposed in the vicinity of the downstream side in the rotation direction B of the feed claw member 42, and has a heat cutter 70 having a tip portion 69 to be heated, and for moving the heat cutter 70 to the paper tube 9 side. And a cutter moving cylinder 71. The cutter moving cylinder 71 is attached to the base plate 25 via a bracket 72, and a holding bracket 73 attached to an advancing / retracting rod (not shown) of the cutter moving cylinder 71 makes the heat cutter 70 oblique to the axis 28. Hold on. By the extension, the tip 96 of the heat cutter 70 approaches or contacts the cutting position (39). Instead of the heat cutter 70, a cutter having a thread cutting blade may be provided.

As shown in FIG. 4, the cutting position needs to be in the vicinity of the seal attaching position 38 and in the range 74 where there is no slit on the circumference of the paper tube 9. For this reason, for example, the cutting target point (processing start point) in the package P is set in advance by a paper tube position allocating device (see Japanese Utility Model Laid-Open No. 5-3270) previously proposed by the applicant. I will leave it. In this paper tube position indexing device, an axial groove (or color mark) is formed in a part of the slit-free area 74 on the peripheral side surface of the paper tube 9, and a convex rotation engaging with the groove is formed. The position sensor (or color sensor) detects the position.

Next, the yarn removing mechanism 63 is arranged in the vicinity of the feed claw member 42 on the side opposite to the heat cutter 70, and is configured as an air sucker that sucks the yarn by an air force. The suction mouth 76 of the suction mouth 75 is held so as to approach the peripheral side surface of the paper tube 9, and in cooperation with the rotation of the package P by the paper tube chuck 26, the suction and the rotational movement are repeated. Thus, the yarn cut along the entire circumference of the paper tube 9 is sucked and removed. Further, in the present embodiment, a yarn bundle pressing member 77 for preventing the yarn at a position apart from the suction port 76 from being caught when the yarn is sucked is provided.

As shown in FIG. 9, the suction mouth 75 has a passage 78 for the suction air C inside, and a twisting nozzle portion 79 located near the suction port 76 and a discharge pipe 80 are provided. A suction nozzle portion 82 is provided near the base end side opening 81 to be connected, and a thread chucker 83 is provided between the nozzle portions 79, 82. The suction nozzle portion 82 has an annular air pressure chamber 83 formed coaxially with the suction air passage 78, and a cone body 84 formed inside the air pressure chamber 83. The air ejection passage is formed so as to be inclined toward the base end side. 85, the air is jetted toward the base end side by the supply of the compressed air to substantially form the suction air C. As shown in FIG. 10, the twisting nozzle portion 79 is composed of a concave chamber 86 that is formed coaxially with the suction air passage 78 and is supplied with compressed air, and a nozzle pipe 87 that defines the suction port 76. The nozzle pipe 87 is provided with a nozzle hole 88 extending from the concave chamber 86 to the suction air passage 78 in the circumferential tangential direction and in the suction direction. That is, a swirling flow is generated in the suction air passage 78, and several yarns to be sucked are collectively twisted. The number of the nozzle holes 88 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 83 is composed of a cylinder 89 provided in a direction traversing the suction air passage 78 and a chuck body 91 attached to the tip of an advancing / retracting rod 90 thereof. The chuck body 91 sandwiches the suction air passage 78. By appropriately contacting the gripping block 92 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 yarn 3 is released from the paper tube over the entire circumference.

As shown in FIGS. 7 and 11, the yarn bundle pressing member 77 is provided on the upstream side in the rotation direction B of the suction mouth 76, and has a sliding contact portion 93 that is in contact with the peripheral side surface of the paper tube 9 at one end. It is formed as a substantially U-shaped lever plate. The sliding contact portion 93 is bent along the peripheral side surface of the paper tube 9, and a large pad 94 that covers at least the bunch rod winding 3b is attached to the bent surface. A vertical pin 95 is attached to the other end of the yarn bundle pressing member 77, and is rotatably supported by the bearing block 47 via a bracket 96. An advancing / retreating rod 98 of a swing cylinder 97 attached to the base plate 25 is pivotally supported at a corner on the other end side via a bracket 99, and the extension / contraction of the rod 98 allows the yarn bundle pressing member 77 to swing horizontally. It has become. That is, when the yarn is sucked by the suction mouth 75, the yarn bundle pressing member 77 is swung clockwise in FIG. 11, so that the sliding contact portion 93 is pressed against the circumferential surface of the paper tube 9 of the rotating package P. There is. The material of the pad 94 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 apparatus is provided with a control panel (not shown) for automatically operating the cylinders 31, 71, 89, 97 and the rotation motor 34 at a predetermined timing. Interlocking control is performed according to the operation of a sensor (not shown) that detects the position of the chain 37 and the moving block 45.

Next, the operation of this embodiment will be described (see FIG. 12).

When the package P transported by the transport conveyor is stopped at the position of the station S, the paper tube chuck 26 is fitted to the end of the paper tube 9 by the approach movement of the base plate 25, and 9 is gripped (ST 1). Next, the feed claw member 42 is lowered by the operation of the up-and-down cylinder 31, and the tip 43 of the feed claw member 42 contacts the peripheral side surface of the paper tube 9 (ST 2). The paper tube chuck 26 is rotated by the driving of the rotation motor 34, and the package P is rotated twice in the predetermined direction B (ST 3). By this rotation, the feeding claw member 42 slides in the direction away from the main winding 5 of the package P, and the bunch feeding yarn 3a is engaged with the tip 43 of the feeding claw member 42. When this rotation is completed, the yarn path of the bunch yarn feeder 3a is aligned in a spiral shape from the position of the tip 43 of the feeding claw member 42 to the main winding 5 at substantially equal intervals. Here, when the yarn pulling mechanism 51 shown in FIGS. 5 and 6 is adopted, when the feeding claw member 52 swings by a predetermined amount due to the tension of the bunch yarn feeding 3a (ST3a), the sensor 55 causes the sensor 55 to move. When this is detected, it is determined that the number of windings of the bunch feeding yarn 3a is less than 2 windings at the maximum and an alarm is issued (ST3b), and the subsequent processing is interrupted and the operator is called for other processing.

When the alignment of the bunch-feeding yarns 3a is completed, the arm 68 of the sticker attaching mechanism 61 descends to the vicinity of the tip 43 of the feeding claw member 42, that is, the bunch-feeding yarns 3a having a predetermined length from the main winding. Attach a sticker at the position separated by just that much and fix it to the paper tube 9 (ST 4). Next, the package P is appropriately rotated to move the seal portion to a position facing the heat cutter 70, and then the tip portion 69 of the heated heat cutter 70 is brought closer to or in contact with the cutter moving cylinder 71. , The vicinity of the seal bunch winding side of the bunch thread 3a and the bunch winding 3b are cut (ST 5). When this cutting is completed, the cutter moving cylinder 71 retracts and the heat cutter 70 returns to the original position.

When the bunch yarn feeding 3 a and the bunch winding 3 b are cut, the yarn bundle pressing member 77 is swung by the operation of the swing cylinder 97, and the sliding contact portion 93 is appropriately separated from the cutting position 39. Hold the paper core position. Then, the suction air of the suction mouth 75 sucks the free yarn. At this time, the swirling flow formed by the twisting nozzle part 79 bundles the cut bunch yarn-feeding yarn 3a and the yarn of the bunch rod winding 3b wound on the slit, and enters into the slit by the swirling force. The thread of the bunch winding 3b that has been inserted is pulled out. When the yarn in the portion not held by the yarn bundle pressing member 77 is sucked by the suction air, the yarn chucker 83 grips the yarn bundle that has entered the suction air passage 78 by the operation of the cylinder 89 (ST6). Then, by driving the rotation motor 34, the package P is rotated by a predetermined angle, for example, 45 degrees (ST 7). After this rotation, the yarn chucker 83 releases the grasping of the yarn bundle (ST 8), sucks the yarn newly separated from the yarn bundle pressing member 77, and thereafter, until the package P rotates once. By repeating this operation, suction and drawing are performed along the entire circumference of the paper tube (ST 9). This removes the bunch thread 3a and the bunch barb 3b other than the required length from the end of the paper tube.

In this way, the bunch feeder 3a is fixed at a predetermined position by sticking a sticker, and the heat cutter 70 cuts the bunch feeder 3a and the bunch rod winding 3b in the vicinity thereof. The suction air B in a substantially radial direction is applied near the tube surface to pull the cut bunch winding thread 3 in cooperation with the package rotation, so that the thread that has entered the slit can be pulled out without difficulty. be able to. In other words, in the conventional bunch winding device, the bunch winding thread 3 is pulled out in the axial direction for a long time before fixing and cutting, which may cause thread 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.

Further, since the twisting nozzle portion 79 creates a swirl flow in the suction mouth 75 to twist the sucked yarn bundle, there is no single yarn breakage, and the yarn that digs into the slit is also cut. It can be reliably removed. A yarn bundle pressing member 77 is provided in the vicinity of the suction mouth 75 so that the cut threads can be sucked in little by little, so that the yarn at a position away from the suction mouth 76 of the suction mouth 75 is sucked. It can be removed cleanly without breaking the single yarn part that does not collect in the bundle or leaving the yarn inside the slit in a fluffy shape.

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

In this specific example, an injection needle-shaped thin tube that is bent appropriately is used as the feed claw member 101 of the thread pulling mechanism, and the tip 102 is bent so as to follow the surface of the paper tube 9. (See FIG. 14). An air hose 103 for supplying compressed air is attached to the base end of the feeding claw member 101, and by blowing air from the tip 102, when the tip 102 comes into contact with the surface of the paper tube 9, the tip 102 is placed above the bunch thread 3a. It is designed so that you will not get into the car.

The feed claw member 101 is swingably supported by the moving block 45 via a leaf spring 104 and an elastic tube 114. The leaf spring 104 biases the feed claw member 101 downward. A substantially upright air cylinder 105 is provided to raise the feed claw member 101 from the surface of the paper tube. The air cylinder 105 has an advancing / retreating rod 106 facing downward, and a tip of the advancing / retreating rod 106 is fixed to a base end of a leaf spring 107 by a U-shaped rod 107 with a bolt 108. The main body tube portion 109 is connected to the tip end side of the leaf spring 104 by another U-shaped rod 110. That is, by controlling the supply of compressed air to the air cylinder 105, the main body tubular portion 109 is raised by the extension of the advancing / retreating rod 106, and the feed claw member 101 is moved upward by raising the leaf spring 104.

Further, a sheet 112 having a strip-shaped mark 111 extending in the longitudinal direction is attached to the upper surface of the feed claw member 101, and an optical sensor 113 for detecting the mark 111 is provided above the sheet 112. The optical sensor 113 is held by the leaf spring 104 via a bracket (not shown). Therefore, when the feed claw member 101 swings by a predetermined amount or more, the optical sensor 113 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 feeding yarn 3a is prevented from entering under the feeding claw member 101, the lines can be more reliably aligned, and the number of windings can be detected with a relatively simple structure. Other configurations and effects are the same as those of the specific embodiment.

[0041]

[Effect of device]

 In short, according to the present invention, the yarn path of the bunch winding yarn becomes constant, and the fixing and cutting process is stabilized, which is an excellent effect.

[Brief description of drawings]

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

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing a second embodiment of the present invention.

FIG. 4 is a plan view of FIG.

5 is a side view showing a modified example of FIG.

FIG. 6 is a plan view of FIG.

FIG. 7 is a perspective view showing a specific embodiment of the present invention.

FIG. 8 is a side view showing the whole of FIG.

FIG. 9 is a side sectional view showing the suction mouse of FIG. 7.

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

11 is a plan view showing the yarn bundle holding member of FIG. 7. FIG.

FIG. 12 is a flow chart for explaining the operation of a specific embodiment of the present invention.

FIG. 13 is a perspective view showing another specific embodiment of the present invention.

14 is a cross-sectional view showing the main parts of the feed claw member of FIG.

FIG. 15 is a side view showing a conventional bunch winding processing device.

[Explanation of symbols]

 3 Bunch winding thread 9 Paper tube 21 Feed claw member 22 Rotating means 23 Thread shifting mechanism

Claims (1)

[Scope of utility model registration request] 1. A thread comprising a feed claw member that abuts a peripheral side surface of a bunch-wound paper tube end portion, and a rotating means for relatively moving the feed claw member and the peripheral side surface in the circumferential direction. A bunch winding device characterized by being provided with a moving mechanism.