JPS63258377A - Device for unwinding punch winding - Google Patents

Abstract

PURPOSE:To unwind a punch winding from its starting end thread without breaking the punch winding thread in the middle by employing a punch winding unwinding preparation roller to be in contact with the circumferential surface of a bobbin, a punch winding unwinding roller, and a thread suction means. CONSTITUTION:The front end of a punch winding unwinding preparation roller 31 comes in contact with point between a punch winding 1 of a bobbin B1 and a nip point N, and is revolved in the direction 80 opposite to the direction of winding, catches a thread YN extending from the nip point N to the punch winding 1 and make the thread move to the N side in turn and makes the thread starting and 81, fit into a slit S, to be exposed on the surface of the bobbin B1. The bobbin is then sent to a punch winding unwinding process. The front end 54a of a punch winding unwinding roller 54 comes into contact with a bobbin B2 near the slit S, the revolution in the punch winding direction 82 loosens the thread from the starting end 81. The punch winding thread Y1 is sucked from a suction port 60 of a thread suction means 45 of a support body 52 inserted into a bobbin B2 and is removed in sequence. Thus, the punch winding can be unwound without breaking the thread and thread tying between other packages becomes easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bunch winding release device for a package formed by performing bunch winding on the end of a bobbin and then performing main winding.

[Prior art] In a take-up machine, a yarn that is continuously spun is wound up,
The finished package is transported to the desired next stage or shipped as a product.

In this package, as shown in Figs. 14 and 15, after the starting end of the thread is bunch-wound around the end of the bobbin B,
The bobbin B is fully wound to form a package P, and a predetermined length of thread is wound 2 around the outer periphery of the package P before being shipped as a product.

[Problems to be Solved by the Invention] By the way, in order to perform bunch winding 1 on the bobbin B, it is necessary to form a sling 1 in the circumferential direction of the bobbin B, and after hooking and stopping the starting end of the thread in the slit, After winding the thread around the end of the bobbin B and performing bunch winding 1, the main winding is performed.

However, even if you try to take out the starting end of this bunch-wound thread in order to tie it to another package, the starting end of the thread will be located at the bottom layer of the bunch-wound as described above, and will be firmly inside the slit. If there is, the starting end cannot be easily removed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bunch winding release device that can release bunch winding formed on the bobbin end of a package.

[Means and operations for solving the problems] In order to achieve the above object, the present invention provides a bunch winding release device for a package in which bunch winding is performed on the bobbin end and main winding is performed. The thread revolves in the direction opposite to the winding direction of the bunch winding while coming into contact with the circumferential surface of the bobbin, and the thread is sequentially moved from the bunch winding yarn near the nip point where it changes from bunch winding to main winding to the package side, and the lower layer is moved to the package side. A bunch winding release preparation roller is used to expose the starting end of the thread on the bobbin surface, and the roller revolves in the bunch winding direction while contacting the bobbin near the starting end of the bunch-wound thread, and unwinds the thread while loosening the thread on the starting end side. It is equipped with a bunch winding release roller that pulls the yarn and a thread suction means that removes the bunched yarn by suctioning the pulled yarn. First, the bunch winding release roller moves the outermost layer of the bunched yarn to the package side. This exposes the lower layer of yarn to the bobbin surface, making it easier to take out the starting end of the bunch-wound yarn.The bunch-winding release roller rotates the yarn in the bunch-winding direction and loosens the moved yarn, and the yarn suction means removes the yarn. Bunch winding can be released by suctioning the loosened thread.

[Embodiment] Hereinafter, a preferred embodiment of the bunch winding release device of the present invention will be described based on the accompanying drawings.

First, the package is in the state shown in FIGS. 14 and 15, and the bar winding 2 is released, and a yarn knot is tied around the outer periphery of the main package P with the thread of the main winding after the bar winding 2 has been removed. After the winding 1 is removed, a predetermined length of yarn is wound around the end of the bobbin B from the nip point N where the bunch winding 1 is transferred to the main winding.

The yarn processing device of this package will be explained with reference to FIGS. 12 and 13.

In FIGS. 12 and 13, a package P doffed by a spinning winder is inserted and supported on a tray 5 with a bag 4 that is transferred on a transfer path 3 such as a roller conveyor. , in the middle of the transfer path 3, trays or packages P are positioned at three positions P1, P2, P3,
At each position, the yarn ends are processed to be described later. The three positions of the package are referred to as a first stage ST1, a second stage ST2, and a third stage ST3 in order from the right in FIG. 12.

The first stage ST1 is provided with a thread knotting device 6 for wrapping and fixing the thread end of the outermost layer of the package around the circumferential surface of the package. The second stage ST2 is provided with a bunch winding yarn release device 7, and the third stage ST3 is provided with a yarn end winding fixing device 8.

In the first stage ST1, the thread tying device 6 performs a thread tying operation and preparations are made to release the bunch winding, and in the second stage ST2, the bunch winding release is completed. These first and second stages ST1, Sr1
The bunch unwinding device of the present invention is used in the following.

First, a device for preparing for bunch winding release at the first stage ST1 will be explained with reference to FIGS. 1, 2, and 3.

In Fig. 1, 10 is a slide frame, and 12th
As shown in the figure, it is movably provided on the main body frame 9,
It is designed to be able to reciprocate from the standby position indicated by the dotted line in the figure to the support position for the package P1 shown in FIG.

This slide frame 10 is provided with a support body 11 for supporting the bobbin B1. Details of this support 11 will be explained with reference to FIGS. 1 and 3.

A hollow shaft 12 is rotatably supported by a bearing 13 passing through the slide frame 10. hollow shaft 1
A rod 14 is fitted into the hole 2 so as to be movable in the axial direction, and a disk 15 is provided at the tip of the rod 14 on the package P1 side.
A first movable chuck body 16 is fixed with a screw 17,
Behind that, a second movable chuck rest 18 is slidably inserted into the hollow shaft 12, and further behind it, one fixed chuck body is provided fixed to the hollow shaft 12.

The first movable chuck body 15 and the second movable chuck body 18 are biased apart from each other by a compression spring 20, and the second movable chuck body 18 and the fixed chuck body 19 are biased apart from each other by a compression spring 21. 18 is urged away from the fixed chuck body 19.

On the other hand, the rear end of the rod 14 protrudes from the rear end of the hollow shaft 12 and the slide frame 10, and a nut body 22 is screwed onto the rear end, and the nut body 22 and the hollow shaft 1
A compression spring 23 is provided between the rear ends of the two. This compression spring 23 is connected to each chuck body 16, 18, 19.
The rod 14 has a spring force greater than that of the compression springs 20, 21 provided therebetween, so that the rod 14 is always urged to move rightward by the compression spring 23, and in this state, each chuck body 16. 18° and 19 are placed closely together as shown in FIG.

The slide frame 10 is provided with a gripping cylinder 25 that presses and moves the rod 14 to the left through the support frame 24 against the spring force of the compression spring 23. This gripping cylinder 25 has a piston rod 26 that expands and contracts to come into contact with the nut body 22, and the rod 14 is compressed by the compression spring 22.
Move to the left against 3.

An inclined portion is formed on the outer peripheral edge of each chuck body 16, 18, 19 adjacent to each other, and a trough portion 27 is formed therebetween, and a pressing ring in which a coil spring is formed in a ring shape is provided in the trough portion 27.27. 28.28 is inserted.

The pressing ring 28.28 is attached to each chuck body 16°'18.
19 are brought into close contact with each other as shown in FIG. 1, the troughs 27.27 expand to a diameter slightly larger than the inner diameter of the bobbin B1, and the chuck body 16.18 as shown in FIG. .19 are separated from each other, the diameter is reduced to be smaller than the inner diameter of the bobbin B1.

A rotary cylinder body 29 is rotatably provided on the hollow shaft 12 at the rear of one fixed chuck body.
A pulley 44 is integrally provided in the cylindrical portion 29a, and the rotating cylindrical body 29 rotates around the hollow shaft 12 by a rotating device (not shown) connected to the pulley 44.

The support body 11 is constructed as described above, and this support body 11
A release preparation roller 31 is provided which prepares for releasing the bunch winding by fF the first stage 30 of pressure contact.

The pressing means 30 supports the release preparation roller 31 so as to separate from the bobbin B1 as shown in FIG. 2 before the support body 11 is inserted into the bobbin B1, and after the support body 11 is inserted into the bobbin B1 as shown in FIG. Support it so that it comes into pressure contact with the

10- The configuration of this pressure contact means 30 and release preparation roller 31 is
This will be explained with reference to Figures.

A bracket 32 is attached to the cylindrical portion 29a of the rotating cylindrical body 29 of the support body 11, and a pin 33 is attached to the bracket 32.
An inverted-shaped swinging lever 34 is connected via.

A support shaft 35 that rotatably supports the preparation roller 31 is attached to the swing lever 34 .

The preparation roller 31 is provided on the support shaft 35 so as to be rotatable and movable along its axial direction, and is biased by a compression spring 36 so as to come into contact with the collar piece 37 at the lower end of the support shaft 35. has been done. The base of the swing lever 340 is
It is connected to an operating pin 38, and as the rod 14 moves, the operating pin 38 is operated and the swing lever 34 is swung.

That is, as shown in FIG. 3, a plurality of positioning pins 39 are provided on the disc 15 at the tip of the rod 14, and three of the pins are connected to the second movable jack body 18 and the fixed chuck body'.
It is inserted through the hole 4o of the IO and extends toward the rotary cylinder 29. On the other hand, the operating bin 10=38 is inserted through the rotary cylinder 29 and connected to the disc body 41. This disk body 39 is always urged to move leftward by a compression spring 42, and the other surface is
It comes into contact with the tip 39a of the positioning bin 39, and its position is regulated, and can rotate while making contact with the tip 39a of the positioning bin 39.

Additionally, the support shaft 35 that supports the release preparation roller 31 is
As shown in FIG. 2, the roller 31 is provided so that its axis 35a is inclined with respect to the axis Os of the bobbin B1, and its tip side is inclined downward with respect to the rotational direction 43 of the roller 31. ing.

Next, the bunch winding release preparation operation at the first stage ST1 will be explained.

First, as shown in FIG. 12, the package P is inserted into the peg 4, and its tray 5 is transferred on the transfer path 3 and positioned on the first stage ST1 (FIG. 13).

In this state, the slide frame 10 moves from the dotted line position shown in the figure toward the package P, and its support 11 supports the bobbin B of the package P.

This will be explained with reference to FIGS. 1 and 3.

First, when the slide frame 10 moves and the support body 11 approaches the bobbin B1, the gripping cylinder 25 is activated as shown in FIG. The rod 14 is moved to the left against the force of 23. This movement of the rod 14 causes the first movable chuck body 16 to move to the left, and the compression spring 20° 2 between each chuck body 16, 18, 19
The second movable chuck body 17 is moved by the spring force of 1, and as shown in FIG.
As a result, a gap is created between each chuck body 16.
．． The pressing ring 28.28 fitted into the valley 27°27 between the holes 18.19 is reduced in diameter and becomes smaller than the inner diameter of the bobbin B1, and as shown in FIG.
．． 19 can be smoothly inserted into the bobbin B1.

Additionally, along with the leftward movement of the first movable chuck body 16,
The positioning bin 39 connected to the chuck body 16 moves to the left, and the disk body 41 that comes into contact with the tip 39a moves following the tip 39a by the compression spring 42, so the operating bin 38 moves to the left. Moving. As a result, as shown in FIG. 3, the swing lever 34 rotates its preparation roller 31' in the direction away from the bobbin B1, and when the chuck bodies 16, 18, 19 are inserted, the roller 31 moves toward the bobbin B1. This prevents the object from hitting the object and becoming unable to insert the object.

When the slide frame 10 is moved to the supporting position, the chuck body 16, 18, 19 is completely fitted into the bobbin B1, and then the screws 1 to 2 of the gripping cylinder 25 are removed.
6 is retracted, the rod 14 is compressed by the compression spring 23
Each chuck body 16.18 is moved to the right by the force of
．． 19 is in close contact against the compression springs 20 and 21 between them, so that the push ring 2 fitted into the valley 27
8 expands in diameter and supports the bobbin B1 as shown in FIG.

At the same time, due to the rightward movement of the first movable chuck body 16, the tip 39a of the positioning pin 39 moves the disk body 41 against the force of its compression spring 42. is rotated so that the roller 31 is brought into contact with the circumferential surface of the bobbin B1.In this case, the preparation roller 31 is moved against the bobbin B by the elastic force of its compression spring 36.
1.

In this state shown in FIG.
5, the preparation roller 31 moves the yarn in preparation for releasing the bunch winding at the end of the bobbin B1.

The yarn movement for releasing the bunch winding will be explained in more detail later.

As mentioned above, the preparation for releasing the bunch winding is completed,
Further, once the thread tying of the package P1 is completed, the package P1 is transferred from the first stage ST1 to the second stage ST2, as shown in FIG. It is completely released by the device 7. The bunch winding release device of the second stage ST2 will be explained in detail with reference to FIGS. 4 to 6.

As shown in FIG. 4, a pivot lever 50 is provided on the main body frame 9 and moves forward and backward toward the end surface of the bobbin B2 of the package P2, which is positioned and fixed at a predetermined position on the second stage.
is rotatably provided via a support 51.

A support body 52 that is inserted into the bobbin B2 and supports the bobbin B2 is provided at the lower end of the swing lever 50.
4 is provided, and a thread suction means 45 for suctioning and removing the thread drawn by the roller 54 is provided on the support body 52.

First, the support body 52 is attached to the pivot lever 5 as shown in FIG.
A pipe 5G constituting a suction means 45 (described later) is fixed to A through a boss 55, and a bearing 5 is fixed to a pipe 56 of A.
A rotating body 58 is rotatably provided via a pipe 56, and a truncated conical fixed support 59 is provided at the tip of the pipe 56 to be inserted into the bobbin B2.

A suction port 60 connected to the pipe 56 is formed in these five truncated conical fixed supports, and the yarn is suctioned and removed from the suction port 60 when the bunch winding is released. Further, a pulley 72 is formed on the rotating body 58, and a driving pulley 75 is connected to each pulley 72 via bells 1 to 73, and the rotating body 58 is rotated by rotating the driving pulley 75 with a motor 74. ;It's turning into a sea urchin.

Next, the bunch winding release [pressing means 53 for supporting and pulling the cola 57I away from the bobbin B2 after insertion of the support 52 and for pressing the cola 57I against the bobbin B2 after insertion will be explained with reference to FIGS. 5 and 6. .

First, the support yoke 62 is swingably attached to the rotating body 58 via the support pin 6'1.61, and its support]-
The extension plate 63 connects to the pulley 7 from the bottom plate 62a of the pulley 62.
2 and extends in the axial direction of the insert body 52,
A rod 64 is attached to the play 1-63, a support play 1-65 is provided on the rod 64, and a support rod 66 that rotatably supports the release roller 54 is provided on the support plate 65.

Further, a cam roller 67 is provided on the bottom plate 62a of the support yoke 62.
is attached, and this cam roller 67 is connected to the turning lever 50.
abuts against a pressing plate 68 movably provided against the
The support yoke 62 is swung around the support bin 6'1 by the pressing plate 68, and the release roller 54 comes into pressure contact with the bobbin B2 or moves away from it as shown in FIG.

The pressing plate 68 has an operating pin 69 through which the turning lever 50 is inserted.
The operating pin 69 is normally biased by a compression spring 70 so that the pressing plate 68 is brought into close contact with the turning lever 50, and in this state the release roller 54 is separated from the bobbin B2. As shown in FIG.
When the release roller 54 is pressed against the bobbin B2
are held in a pressed state.

In the above, as explained in the first to third figures, before the support body 52 is inserted into the bobbin B2, the pressure contact means 53
Accordingly, the bunch winding release roller 54 is supported in a state separated from the bobbin B2, and is brought into pressure contact with the bobbin B2 after insertion.

In this state, the motor 74 is rotated, and the drive pulley 75,
The pulley 72 is rotated via the belt 73, and the rotating body 5
8 is rotated, the bunch winding release roller 54 rotates around the bobbin B2, loosens the bunch winding, and sucks the loosened thread through the pipe 56 from the suction port 60 to release the bunch winding.

As shown in FIG. 4, the suction means 45 includes a suction pipe 46 connected to a pipe 56 in the support 52, and a compressed air supply pipe 47 connected in the middle of the suction pipe 46.
7 flows into the suction pipe 4G, the pipe 56
And a suction action occurs at the suction port 60.

Next, the bunch winding release preparation operation by the roller 31 explained in Figs. explain.

First, the release preparation roller 3 prepares for releasing the bunch winding.
1 will be explained with reference to FIGS. 7 to 9.

As shown in FIG. 7, the yarn bunch-wound on the bobbin B1 of the package P1 has its nip point N at the outermost layer, and the yarn starting end 81 at the bottom layer is located at the slit S formed on the bobbin B1 (FIG. 9). ). Therefore, the release preparation roller 31 operates to sequentially move the yarn Y1 of the bunch winding 1 wound onto the slit S toward the package side 1 starting from the yarn closest to the nip point N.

That is, the tip 31a of the preparation roller 31 contacts the circumferential surface of the bobbin B1 between the bunch winding 1 and the nip point N, as shown in FIG. It revolves as shown by arrow 8o. When the preparation roller 31 is revolved in this way, its tip 31a captures the yarn YN extending from the nip point N to the bunch winding 1,
8th thread Yl, I to the position of the tip 31a.
Move sequentially as shown in the figure. In this way, the preparation roller 31
Bunch winding 1 is carried out sequentially from the outermost layer of yarn to the nip point N.
By moving the yarn of the bunch winding 1 to the side (package side), the starting end 81 of the yarn fitted into the slit S can be exposed on the surface of the bobbin B1, as shown in FIG.

If the starting end 81 of the thread is exposed on the surface of the bobbin B1 in this way, the starting end 81 can be easily taken out from the slit S.

When this preparation for bunch winding cancellation is completed, the package P is transferred to the second stage ST2, and the bunch winding yarn is taken out by the bunch winding release roller 54.

This will be explained with reference to FIGS. 10 and 11.

First, the tip 54a of the bunch winding release roller 54 is
As shown in FIG.
revolved in the direction.

In this way, when the release roller 54 revolves, the roller 54 loosens the thread from the starting end 81 of the thread, and as shown in FIG. The bunch-wound thread Y1 is suctioned through the suction port 60 constituting the bobbin B2, and the bunch-wound threads wound around the bobbin B2 are successively removed by suction.

Once the bunch winding is released in this way, the released thread is pulled out, and the thread is pulled out in the third stage ST3.
(See Figure 13), the predetermined length of the bunch-wound thread from the nip point is cut, and the thread is transferred to the bobbin B again.
The work wrapped around 1 is completed.

The operation of pulling out the thread after the bunch winding is released in the second stage ST2 will be explained with reference to FIG.

First, the swing lever 50 is rotated by the fluid cylinder 90 from the standby position 50a shown by the two-dot chain line in the figure to the position shown by the solid line. After the bunch winding is released, the turning lever 50 is reciprocated several times from the illustrated standby position 50a to the intermediate position @50b, thereby making it possible to pull out the bunch-wound yarn Y1 from the nip point as illustrated.

In this case, in order to ensure that the thread is pulled out more reliably, when the thread has reached the standby position 50a, the thread presser surface 91 of the thread presser lever 71
However, by bringing it into contact with the tip end surface 52a of the support body 52, the thread can be held securely.

This thread presser lever 71 is connected to a shaft 9 provided on the pivot lever 50.
A lever 93 is connected to the shaft 92, and the lever 93 is rotated by a rod 94 and a swing plate 95 connected thereto.

The swing plate 95 is swingable around a shaft 96 provided on the swing lever 50, and has cam rollers 97.9 on both sides thereof.
8 is provided, and a spring 99 causes the thread presser lever 71 to press the thread presser surface 91 as shown by the solid line in the figure.
is urged away from the insert 52. Also, on the rotation locus of the inner and outer cam rollers 97 and 98, there is a mechanism for swinging the swing plate 95 via the cam rollers 97 and 98, and rotating the thread presser lever 71 via the rod 94 and the lever 93. Cam piece 100. 101 is provided.

That is, the outer cam roller 98 of the swing plate 95 is
When the swing lever 50 is rotated to the standby position 50a, it comes into contact with the outer cam piece 101, causing the swing plate 95 to swing clockwise to rotate the thread presser lever 71 via the rod 94 and lever 93. J: The sea urchin thread presser lever 71 is rotated so that the thread presser lever 71 comes into contact with the distal end surface 52a of the insert body 52. Further, the inner cam roller 97 is connected to the inner cam piece 100.
'' and when inserting the support body 52 into the bobbin B2,
The thread presser lever 71 is rotated to ensure that the thread presser surface 91 of the thread presser lever 71 is separated from the support 52 as shown by the solid line in the figure.

In the above, after the bunch winding is released by the bunch winding release roller 54 as explained in FIGS. 10 and 11, the swing lever 5o is moved from the solid line shown in the figure to the standby position 5
When the yarn is turned to a point a, the suctioned yarn is pulled out into the suction 060 (and pipe 56) of the support 52. In this case, since the outer cam roller 98 comes into contact with the cam piece 101, the thread presser lever 71 comes into contact with the tip end surface 52a of the inserter 52, ensuring the holding of the thread Y1, and still prevents bunch winding. Even when the thread is not completely released or the starting end of the thread is firmly inserted into the slit S,
These threads are pulled out to ensure that a predetermined length of thread is pulled out from the nip point.

This turning lever 50 is moved to the intermediate position 50b or the standby position 50.
By reciprocating between a and a several times, the above operation will be performed reliably.

In addition, in FIG. 4, 104 is a sensor that detects that this thread Y1 is pulled out.

After this thread is drawn out, package P2
is transferred to the third stage ST3, and the drawn thread is cut to a predetermined length, and the thread is wound and fixed around the bobbin B.

[Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.

(1) A bunch winding release roller that contacts the circumferential surface of the bobbin and moves the bunched thread toward the package to expose the lower layer of thread on the bobbin surface; a bunch winding release roller that loosens the moved thread; and the bunch winding release roller that loosens the moved thread. Since a yarn suction means for suctioning the yarn is provided, bunch winding can be released from the starting end of the yarn without cutting the bunch winding yarn from the middle.

(2) By releasing the bunch winding, work such as tying threads with other packages becomes easier.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a view showing the relationship between the bobbin and the releasing IP roller in Fig. 1, and Fig. 3 is a view showing the relationship between the bobbin and the release IP roller in Fig. 4 is a side view showing another embodiment of the present invention, FIG. 5 is a sectional view of the main part of FIG. 4, and FIG. 6 is a right side view of FIG. 5. , FIG. 7, FIG. 8, FIG. 9, FIG. 10, and FIG. 11 are diagrams showing the process of releasing bunch winding, respectively, and FIG. The side view, Figure 13 is the front view of Figure 12, and the first
4 and 15 are diagrams showing a package for yarn processing. In the figure, 31 is a bunch winding release preparation roller, 45 is a yarn suction means, 54 is a bunch winding release roller, B is a bobbin, and P is a package. Patent applicant: Murata Machinery Co., Ltd. Representative patent attorney: Nobuo Kinuya = 26 = Figure 11

Claims (1)

[Claims] In a bunch winding release device for a package that has been subjected to bunch winding and main winding at the end of the bobbin, the device revolves in a direction opposite to the winding direction of the bunch winding while contacting the circumferential surface of the bobbin where bunch winding has been performed. A bunch winding release preparation roller for sequentially moving the yarn from the bunch-wound yarn near the nip point where the winding is transferred to the main winding to the package side and exposing the starting end of the lower layer of yarn on the bobbin surface, and the starting end of the bunch-wound yarn. A bunch winding release roller revolves in the bunch winding direction while contacting a nearby bobbin, and pulls the thread while loosening the thread on the starting end side, and a thread suction means removes the bunch winding thread by sucking the drawn thread. A bunch winding release device characterized by comprising: