JPH0734062Y2 - Bunch thread release device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bunch thread releasing device for processing a bunch wound thread around a paper tube end of a package while leaving a predetermined length.

[0002]

2. Description of the Related Art In a spun yarn winding machine, a continuously spun yarn is wound up and a fully wound package is sent to a desired process or shipped as a product.

In this package, a slit is formed at the end of the paper tube, the thread end is hooked on the slit, and then bunch winding is performed, and then main winding is performed via a nip point to form a full-roll package. It

When the winding end end of this winding package and the winding start end of another winding package are sequentially connected and used continuously, it is necessary to process the winding end and winding start end of the package.

By the way, the applicant of the present invention has found that the actual application is 2-371.
No. 69, etc. proposed a device in which the bunch winding yarn at the winding start end is left for a predetermined length from the nip point and the other yarns are released.

This bunch wound yarn is processed by bringing a roller into contact with the bunch wound yarn layer and rotating it to loosen the bunch yarn to release it and pull it out, leaving a yarn of a predetermined length from the nip point. The remaining bunch winding yarn is released, and the remaining yarn is wound around the paper tube again.

[0007]

By the way, when releasing the bunch winding yarn, when the bunch winding yarn is pulled out in the axial direction of the paper tube, the yarn from the nip point is pulled out at the same time as the yarn that has bitten into the slit, and is removed. Need, but
It is difficult to reliably remove the thread from the slit.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems and to provide a bunch thread releasing device which can easily and surely remove the thread that has bitten into the slit when releasing the bunch winding thread. .

[0009]

In order to achieve the above-mentioned object, the present invention provides a method in which a slit formed at an end of a paper tube is hooked with a leading end of a thread, wound with a bunch, and then a nip point is applied. In the bunch thread releasing device for removing the thread that has bitten into the slit when the bunch wound thread of the package formed by main winding is pulled out in the axial direction of the paper core, the pulled out threads are held together A chuck device and a pair of thread take-up arms, one end of which is located at the axial center of the paper tube and the other end of which rotates along the peripheral surface of the paper tube to bundle the threads that bite into the slit and remove the thread from the slit. Is.

[0010]

According to the above construction, when the yarn is pulled out in the axial direction of the paper tube in order to release the bunch winding, the pulled-out yarn is grasped by the chuck device so that both ends of the yarn bite into the slit. When the yarn take-up arm is in a restrained state and the yarn take-up arm is swung in that state, the yarn that has bitten into the slit is released from the slit while being bundled by the yarn take-up arm.

[0011]

【Example】

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the overall construction of the yarn processing apparatus will be described with reference to FIG.

In FIG. 2, a base 1 is provided on the floor surface F, and the base 1 is provided with a carrier 2 of a tray T for supporting and carrying the package P. The transport table 2 is provided with a transport roller 3 that transports the tray T, and a stopper 4 that stops the tray T. Tray is approximately L
It is composed of a character-shaped support base 5, and a peg 6 extending obliquely upward and rotatable with respect to the support base 5 is provided on the support base 5, and the paper tube B of the package P is mounted on the peg 6 to form the package P. It is rotatably supported.

A support frame 7 extending obliquely upward in parallel with the pegs 6 of the tray T is provided on the base 1, and a bunch winding processing device A is provided on the support frame 7.

As shown in FIG. 3, the package P is formed such that the winding start end is hooked on the slit S, then the bunch winding 8 is applied, and the main winding is performed from the nip point N. In the state (3), the winding end 9 is in the state in which the knot 9 is made.

3 and 4, the support frame 7
Includes a paper tube retainer 10 that presses the end of the paper tube B on the opposite side of the bunch winding 8 to prevent rotation, a bunch seal pasting tool 11 that stops the end of the thread of a predetermined length on the paper tube B after releasing the bunch winding, Bunch thread guide 12 that holds the bunch thread of a specified length
Also, a heat cutter 13 is provided, and a bunch unwinding device 14 is provided to release the bunch winding.

The bunch unwinding device 14 grips the cone body 15 fitted into the paper tube B, the hook device 16 for hooking and unwinding the bunch winding yarn, and the bunch winding yarn unwound by the hook device 16. Along with this, a yarn removing device 17 for removing from the paper tube B, a suction pipe 18 for removing the removed bunch winding yarn, a chuck device 19 for grasping the yarn sucked by the suction pipe 18, and a bunch unwound by the hook device 16. And a sub-ring device 20 for pushing up the winding thread and removing it from the paper tube B.

First, as shown in FIG. 5, the paper tube holder 10 is provided with a holding plate 23 which is movable up and down by a linear bearing 22 on a fixed base 21 of a support frame 7, and the holding plate 23 is mounted on a lifting cylinder 24. Be lifted up and down. The holding plate 23 is
It has an arcuate recess 23a that matches the curvature of the paper tube B.
As shown in FIG. 5 (a), the holding plate 23 is lowered by the lifting cylinder 24 from its standby position.
As shown in (b) and (c), it is fitted with the paper tube B of the package P to prevent its rotation.

As shown in FIGS. 3 and 4, the bunch seal applicator 11 is provided on the support frame 7 above the paper tube B so as to be able to move up and down, and the nip side thread end cut by the heat cutter 13 described above is used for the paper tube B. It is designed to be attached via labeling tape to.

FIG. 6 shows the details of the bunch thread guide 12 and the heat cutter 13 which hold the bunch winding thread of a predetermined length.

In the bunch thread guide 12, a guide body 26 is rotatably supported by a fixed frame 25 of the support frame 7 with a shaft 27 as a fulcrum, and the fixed frame 25 has the guide body 26.
A presser cylinder 28 for rotating is provided. The guide body 26 has a pressing claw 29 at its tip, and a heater 30 is provided in the guide body 26 to configure the heat cutter 13. The guide body 26 is shown in FIG.
When rotated from the standby position shown in FIG. 6A to the rotation position shown in FIG. 6B, the tip of the presser pawl 29 shown in FIG.
As shown in (c), the paper core B contacts a predetermined position. In this state, the yarn Y _P at a predetermined length on the nip point side is pressed, the bunch winding yarn Y on the starting end side is pressed, and the yarn at the point pressed by the heat cutter 13 after the completion of the bunch winding unwinding operation described later. Y _P is designed to be blown out.

In the bunch unwinding device 14, as shown in FIGS. 3 and 4, a base 36 is movably provided on a rail 35 provided on the support frame 7, and the base 36 is provided.
Is moved toward and away from the paper tube B of the package P by the feed screw 37.

As shown in FIGS. 7 and 8, the cone body 15 is
It has a cone portion 38 that fits into the paper tube B, a support shaft 39 is connected to the cone portion 38, the support shaft 39 is provided on the base 36 so as to be movable in the axial direction, and a spring 40 is normally provided. 7, the stopper 41 at the rear end of the support shaft 39 is urged to the position where it abuts on the base 36, and the base 36 approaches the paper tube B as shown in FIG.
When the paper is fitted with the paper tube B, the paper is retracted with respect to the base 36 and brought into a fitted state by the force of the spring 40. A guide bar 42 is provided on the base 36, and the guide bar 42 is fitted into the cone portion 38 to prevent the rotation of the cone portion 38.

The hook device 16 has an L-shaped hook lever 46 having a hook portion 45 for scraping the bunch winding thread at its tip.
The hook lever 46 is rotatably connected to the base 36 by a fixed shaft 47, and the swing pin 48 on the action point side of the hook lever 46 is connected so as to interlock with the support shaft 39 of the cone body 15. It A return link 49 is connected to the swing pin 48, and a return spring 50 is connected to the link 49.

In the hook device 16, when the cone portion 38 is in the position away from the paper tube B as shown in FIG. 7, the return spring 50 causes the hook lever 46 to move to the illustrated position via the return link 49. When the cone portion 38 is held and fitted to the paper tube B as shown in FIG. 8, the push lever 38a fixed to the cone portion 38 rotates the hook lever 46 counterclockwise via the link 49. The tip of the hook portion 45 is pressed against the surface of the paper tube B, and in this state, the bunch winding yarn can be scraped off.

The suction pipe 18 is shown in FIG.
As shown in (c), the pipe portion 51 is attached to the base 36 by the shaft 5
It is rotatably provided at 1b, and a cylinder 52 is connected to the pipe portion 51 thereof. The tip of the pipe portion 51 is shown in FIG.
As shown in FIG. 9A, the hook device 16 is normally provided at the standby position, and when the cylinder 52 is actuated, the hook device 16 shown in FIG.
As shown in (c), it is rotated so as to be located near the chuck device 19 of the present invention provided behind the cone portion 38. In addition, the suction end portion 51a at the tip of the pipe portion 51 is
As shown in FIG. 9B, the hook portion 45 of the hook device 16
A fiber sensor (not shown) is formed in the side of the pipe portion 51 facing the above, and is formed in the pipe portion 51 or in the vicinity thereof to detect whether or not the yarn is sucked into the pipe portion 51. Has been.

As shown in FIGS. 10 to 12, the chuck device 1
9 is an inverted U provided on the disk 52 on the back surface of the cone portion 38.
A chuck cylinder 54 is provided on one side of the letter-shaped frame 53.
Is provided, the movable chuck portion 55 is provided at the tip of the rod 54a of the cylinder 54, and the frame 53
On the other hand, a fixed chuck portion 56 is provided so as to face the movable chuck portion 55, and the movable chuck portion 55 comes into contact with the fixed chuck portion 56 by the operation of the cylinder 54, and the yarn is chucked therebetween. As will be described later, the chuck device 19 grips the bunch wound yarn of the paper tube B when the bunch wound yarn is pulled out as shown in FIG.

The disk 57 on the back surface of the cone portion 38 is
As shown in FIG. 11, the yarn scraped off by the hook portion 45 is used for the fixed chuck portion 56 and the movable chuck 55 of the chuck device 19.
A cutout portion 58 is provided so as to pass therethrough.

Next, the yarn removing device 17 will be described with reference to FIGS.

A drive motor 60 is provided on the base 36, a drive side sprocket 61 is provided on the drive motor 60, and a chain 62 is provided from the drive side sprocket 61.
The driven side sprocket 63 rotated through the base 3
6 is rotatably provided. This driven sprocket 6
3, the cam 64 and the rotating arm 65 are attached to the sprocket 64.
It is provided so as to rotate integrally with. The base 36 has
A link plate 66 is rotatably provided on a fixed shaft 67, a cam roller 68 is provided at one end of the link plate 66, and a spring 6 connected to the link plate 66 is provided.
At 9, the cam roller 68 is constantly brought into contact with the cam 64. A swing arm 71 is connected to the other end of the link plate 66 via a pin 70, and the other ends of the swing arm 71 and the swing arm 65 are connected to a support plate 73 of the thread take-up arm 72.
Are connected with pins 74 and 75.

The support plate 73 is provided with a pair of thread take-up arms 72 which are opened and closed by driving a thread take-up cylinder 76.

In FIG. 13, the support plate 73 of the thread take-up arm 72 is in the standby position shown in FIG. 13 (a), and when the driven sprocket 63 is rotated by the drive motor 60, as shown in FIG.
As shown in FIG. 3 (b), the support plate 73 is rotated counterclockwise in the figure until it becomes substantially vertical. In the state of FIG. 13B, the cam roller 68 of the link plate 66 is moved to the cam 6
4 into the cam groove 64a, and when the sprocket 63 and the rotating arm 65 rotate further, the cam roller 68 causes the cam groove 6 to move.
4a, the link plate 66 rotates clockwise around the fixed shaft 67, and the pin 70 of the link plate 66 is rotated.
The swinging arm 70 is pulled in slightly downward via. As a result, as shown in FIGS. 13B to 13C, the support plate 73 rises substantially vertically, and its lower end can rise along the end surface of the paper tube B without hitting the paper tube B. .

Next, details of the thread take-up arm according to the present invention will be described with reference to FIGS. 14 (a) and 14 (b).

A support shaft 80 is projected from the support plate 73, and a pair of thread take-up arms 72 is rotatably provided on the support shaft 80. The thread take-up arm 72 includes an arm portion 81 pivotally attached to the support shaft 80 and a dogleg-shaped thread take-up portion 82 provided at the tip of the arm portion 81. When the thread take-up arm 72 rotates while the groove 83 is formed and the support shaft 80 is positioned at the axis of the paper tube B, the thread drop groove 83 moves along the outer peripheral surface of the paper tube B. It is supposed to do.

A roller 84 is provided on the arm portion 81 of the thread take-up arm 72, while a rod 76a of the thread take-up cylinder 76 has a guide having a U-shaped cross section for fitting the rollers 84, 84 of the thread take-up arm 72. A body 85 is provided.

When the rod 76a of the thread take-up cylinder 76 is in the retracted position as shown in FIG. 14 (a), the guide body 85 is at the position shown by the solid line in the figure, and in this state, the two thread take-up arms 72 are provided with their rear surfaces. Is at an approaching angle. When the rod 76a extends from this state to the vicinity of the support shaft 80, the roller 84 engaged with the guide body 85 causes the two thread take-up arms 72 to move to 7
Rotate to the linear state shown by 2A, and further rod 76a
When the guide body 85 is rotated to the position indicated by the chain double-dashed line in the figure, both thread take-up arms 72 rotate to the position indicated by 72B, and the thread on the peripheral surface of the paper tube B is removed between the thread take-up portions 82. It is designed to be caught and pinched. This thread take-up arm 72
As shown in FIG. 1, an elastic body 86 such as urethane rubber is provided at the tip of the arm portion 81 for ensuring the grip of the yarn Y.

Next, referring to FIGS. 15 and 16, the sub-ring device 2
0 will be described.

A shaft 91 is attached to the fixed frame 90 of the support frame 7.
, A swing arm 92 is rotatably provided, a ring plate 93 having a diameter sufficiently larger than the diameter of the paper tube B is attached to the lower end of the swing arm 92, and a cylinder 94 is connected to the upper end of the swing arm 92. . When the cylinder 94 is in the extended position, the sub ring device 20 is in the standby position 20A, in the retracted position it is in the operating position 20B, and the ring plate 93 is rotated to a position coinciding with the axis of the paper tube B. .

FIG. 1 shows the bunch yarn releasing device of the present invention.

The bunch yarn releasing device is a chuck device 19 for collectively grasping the yarns Y drawn from the paper tube B,
A pair of pivoting members are provided on a support shaft 80 located at the axial center of the paper tube B, and the ends of the support tube 80 rotate along the circumferential surface of the paper tube B to bundle the yarns that bite into the slits S and remove the threads from the slits S. It consists of a thread take-up arm 72. Further, when the arm 72 is rotated, the roller 84 provided on the arm 72 is engaged with the U-shaped guide body 85, and the guide body 85 moves the yarn take-up cylinder-.
The thread take-up arm 72 is opened and closed by the operation of 76.

The details of the respective parts of the yarn processing device 14 have been described above. Next, the bunch winding process is carried out by this yarn processing device with reference to FIGS.
This will be described with reference to FIG. Note that in FIGS. 17 to 28, (a)
Shows a front view of the processing device 14, and (b) shows the processing device 14.
The front view of the package P seen from the side is shown.

First, as shown in FIG. 17A, in the package P, after the starting end of the thread is hooked on the slit S of the paper tube B, the bunch winding 8 is applied and the main winding is performed from the nip point N. The package P is a package P, and the winding end of the package P conveyed to the processing device is in a state in which the yarn knot 9 is attached to the outer periphery of the package P, but it is omitted in the following drawings.

In FIG. 18, when the base 36 moves to the paper tube B and is fitted as shown in FIG. 18A, the hook portion 45 of the hook device 16 comes into contact with the lower surface of the paper tube B. At the other end of the paper tube B, the paper tube B is fixed by the paper tube retainer 10.

Next, the bunch thread guide 12 is rotated, and its tip presses a predetermined thread Y _P of the bunch winding thread 8. The thread from the point of the thread Y _P pressed by the bunch thread guide 12 to the nip point N has a length necessary for the post-process, and the thread between the point of the thread Y _P and the thread start end on the slit S side is unwound. It becomes the unwound yarn Y.

When the base 36 moves away from the package P from the state of FIG. 18, the hook portion 45 of the hook device 16 scrapes the yarn Y of the bunch winding 8. In this case, the bunch thread guide 12 holds the thread Y ₀ from the point of the pressed thread Y _P to the nip point N so as not to be unwound due to the backward movement of the hook portion 45.

Next, as shown in FIG. 19, when the base 36 is completely retracted, the hook device 16 is rotated downward to guide the bunch winding yarn Y hooked by the hook portion 45 to the position of the suction mouth 18, and Thread Y is Santion Mouse 18
Is sucked into. After the suction mouth 18 detects the suction of the yarn by a sensor or the like, the suction mouth 51a at the tip of the suction mouth 18 is rotated to a position near the cone portion 38 of the cone body 15 as shown in FIG. Next, this suction mouse 1
The bunch seal applicator 11 descends as shown in FIG. 21 while the yarn Y is sucked by 8, and descends from the yarn Y _P pressed by the bunch yarn guide 12 to the yarn Y ₀ on the nip N side, as shown in FIG. Stick a bunch seal 120 like this
₀ is stopped by the paper tube B.

Next, the bunch-wrapped yarn Y is unwound. This bunch-wrapped yarn Y is pulled from the pressing point Y _P to the suction pipe 1.
8 is not unwound as a single line, and as shown in FIGS. 19 to 21, it partially digs into the slit S to form several lines from the circumferential direction of the paper tube B toward the suction pipe 18. It is a thread. Then, as shown in FIG. 23, the thread removing device 17 is operated, and the supporting plate 73 is moved to the paper tube B.
It is positioned so that it is parallel to the end face of the. At this time, the thread take-up arm 72 is in the open state as shown in FIG.
The support shaft 80 is in a state of being aligned with the axis of the paper tube B.

Next, in this state, as shown in FIG. 24 (b), the cylinder 54 of the chuck device 19 operates to move the movable chuck 55 to the fixed chuck 56, and during that time, the yarn Y on the suction pipe 18 side is chucked. .

Thus, the yarn Y on the suction pipe 18 side
After being chucked by the chuck device 19, the thread take-up arm 72 is rotated so as to be closed as shown in FIG. The thread take-up arm 72 has its thread take-up portion 82 moved along the peripheral surface of the paper tube B to scrape and bundle the threads on the peripheral surface. At this time, since the yarn on the suction pipe 18 side is fixed by the chuck device 19, most of the yarn that has bitten into the slit S will come off.

This will be described in more detail with reference to FIG.

In FIG. 1, the yarn Y axially pulled out from the paper tube B is grasped by the operation of the chuck device 19, and when the yarn take-up cylinder 76 is operated in this state, the U-shaped guide member 85 is provided. And the roller 84 engaged with the guide body 85 ascends, and the thread take-up arm 72 pivots upward around the support shaft 80 from the state of being opened in a V shape shown in the drawing, while The take-out portion 82 catches the thread extending from the peripheral surface of the paper tube B and scrapes it up on the upper portion of the paper tube B to form the arm portion 81.
When is closed, the thread is sandwiched between the elastic bodies 86 at the tip. In this way, by collecting the yarn Y extending from the peripheral surface of the paper tube B on the upper portion, most of the yarn Y biting into the slit S can be removed.

Next, when the chuck of the chuck device 19 is released as shown in FIG. 26, the yarn Y is in a state of being sucked by the suction pipe 18 from the yarn take-up arm 72, and in this state, the heat cutter 13 of the bunch yarn guide 12 is used. In the heated state, when the support plate 73 is further raised from this state, the thread that has bitten into the slit S is completely removed, and when further raised as shown in FIG. 27, the thread between the presser point Y _P and the thread take-up arm 72 is removed. By being lifted by the thread take-up arm 72, it comes into contact with the heat cutter 13 and is fused.

Thereafter, when the thread take-up arm 72 is opened as shown in FIG. 28 (b), the thread is completely sucked and removed by the suction mouth 18, and from the point of the thread Y _P pressed by the bunch thread guide 12 to the nip N. The yarn Y _O remains, the yarn removing device 17 is returned to the standby position, the paper core holder 10 is raised, and the bunch yarn guide 12 is further rotated upward to complete the yarn treatment. The yarn processing of the conveyed package P will be performed.

When the yarn is removed from the slit S, the sub-ring device 20 may be used to perform the bunch unwinding. In this case, FIGS. 17 to 21 are the same, and the yarn Y _O having a predetermined length is in a state in which the bunch seal 120 is attached. Thereafter, when the sub-ring device 20 is actuated, the yarn that has bitten into the slit S is spread from the slit S on the outer circumference of the ring plate 93 of the sub-ring device 20 and then sucked by the suction pipe 18, and the presser yarn Y
The yarn Y from _P is fused by the heat cutter 13.

After that, the chuck device 19 and the yarn removing device 17 described above are actuated to remove the yarn biting into the slit S.

[0056]

In summary, according to the present invention, when the bunch winding thread is processed, the thread caught in the slit is removed, and when the thread is pulled out by the chuck device, the tip of the thread take-up arm is attached to the paper tube. The yarn can be easily removed from the slit by moving it along the circumferential surface of the yarn and scraping the yarn.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an overall view of a yarn processing device according to the present invention.

FIG. 3 is a detailed view of the processing device of FIG.

FIG. 4 is a left side view of FIG.

FIG. 5 is a diagram showing details of the paper tube holder of FIG.

FIG. 6 is a view showing details of a bunch thread guide and a heat cutter of the present invention.

FIG. 7 is a diagram showing details of the cone body and the hook device of FIG. 3;

8 is a diagram showing a state where the cone body of FIG. 7 is fitted to a paper tube.

FIG. 9 is a diagram showing details of the cone body and the suction pipe of FIG.

10 is a diagram showing details of a state in which the cone body is fitted to the paper tube in FIG.

11 is a left side view of FIG.

12 is a detailed view of the chuck device of FIG.

FIG. 13 is a diagram showing details of the yarn removing device of FIG. 3;

FIG. 14 is a diagram showing details of the thread take-up arm shown in FIG. 13;

FIG. 15 is a diagram showing details of the sub-ring device of FIG.

16 is a left side view of FIG.

FIG. 17 is a schematic explanatory view showing a start state of a bunch winding process in the present invention.

FIG. 18 is a schematic explanatory view of a state in which the cone body is fitted and the bunch thread guide is operated in the bunch winding process in the present invention.

FIG. 19 is a schematic explanatory view of a state in which the bunch winding yarn is unwound by the hook device in the bunch winding process in the present invention.

FIG. 20 is a schematic explanatory view of a state in which the bunch winding yarn unwound in the bunch winding process in the present invention is sucked by the suction pipe.

FIG. 21 is a schematic explanatory view showing an operating state of the bunch seal applicator in the bunch winding process in the present invention.

FIG. 22 is a perspective view of a package when a bunch seal is applied in the bunch winding process of the present invention.

FIG. 23 is a schematic explanatory view showing the operation start state of the yarn removing device in the bunch winding process of the present invention.

FIG. 24 is a schematic explanatory view showing a state in which the chuck device is operated in the bunch winding process in the present invention.

FIG. 25 is a schematic explanatory view showing an operating state of the thread take-up arm of the thread removing device in the bunch winding process of the present invention.

FIG. 26 is a schematic explanatory view showing a state in which the chuck device is released in the bunch winding process in the present invention.

FIG. 27 is a schematic explanatory view showing a state in which the yarn cutting into the slit is removed by the yarn removing device and the yarn is cut by the heat cutter in the bunch winding process in the present invention.

FIG. 28 is a schematic explanatory view showing a state in which the thread take-up arm of the thread removing device is released in the bunch winding process in the present invention.

[Explanation of symbols]

 19 Chuck device 72 Thread take-up arm B Paper tube P Package S Slit Y Thread

Claims (1)

[Scope of utility model registration request] 1. A bunch winding thread of a package formed by hooking a starting end of a thread in a slit formed at an end portion of the paper tube, bunch winding, and then performing main winding through a nip point. In a bunch thread releasing device for removing the thread that has bitten into the slit from the slit when it is pulled out in the axial direction, a chuck device that holds the pulled out threads collectively and one end of each is located at the axis of the paper tube. A bunch yarn releasing device, the other end of which is provided with a pair of yarn take-up arms that swivel along the peripheral surface of the paper tube to bundle the yarns that bite into the slits and remove the yarns from the slits.