JPH0772053B2 - Bunch winding end cutting method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bunch winding method for processing a bunch-wound thread on a paper tube end of a package while leaving a predetermined length of the thread, and in particular, cutting to leave the thread of the predetermined length. Bunch winding end fusing method for

[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]

However, in the above-mentioned method, since the yarn is once pulled out to the nip point by the roller and then wound around the paper tube again, especially for clothing yarn or fine denier yarn, it is stretched. There is a problem that the yarn quality deteriorates, such as when the yarn is wound.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems and to release a bunch wound yarn from a nip point leaving a predetermined length for processing without deteriorating the yarn quality and easily cutting the remaining yarn. It is to provide a method for fusing winding ends.

[0009]

In order to achieve the above object, according to the present invention, after the start end of a thread is hooked on a slit formed at an end portion of a paper tube, it is bunch-wound, and further, through a nip point. In a bunch winding method for a package formed by performing main winding, a bunch winding thread of a predetermined length is pressed from a nip point at the tip of a bunch thread guide, and the remaining bunch winding thread from the pressing point to the starting end is released and The released thread is lifted in the radial direction and the thread rising from the pressing point is brought into contact with the heat cutter of the bunch thread guide to melt it.

[0010]

According to the above construction, when the bunch winding is released, the bunch winding thread having a predetermined length is previously pressed from the nip point by the bunch thread guide, the remaining bunch winding threads are released, and then the thread is released. By lifting the blade outward in the radial direction, the thread rising from the slit is left as it is and only the thread rising from the pressing point is cut, leaving the bunch wound thread of a specified length from the nip point without impairing the quality. At the same time, it becomes possible to easily cut the thread.

[0011]

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

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

In FIG. 4, 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. 5, the package P is formed by bunch winding 8 after the winding start end is hooked on the slit S and 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.

5 and 6, the supporting 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, A bunch thread guide 12 and a heat cutter 13 of the present invention for holding and holding a bunch winding thread of a predetermined length are provided, and a bunch unwinding device 14 is provided for releasing 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. 7, 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 the support frame 7, and the holding plate 23 is attached to 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. 7A, 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.

In the bunch unwinding device 14, as shown in FIGS. 5 and 6, 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. 8 and 9, 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. 8, 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. The hook device 16 holds the hook lever 46 at the illustrated position via the return link 49 by the return spring 50 when the cone portion 38 is in the position away from the paper tube B as shown at 86. Part 38
When it is fitted into the paper tube B as shown in FIG.
The hook lever 46 is rotated counterclockwise via the link 49 by the pusher 38a fixed to the front end of the hook portion 45 against the surface of the paper tube B, and the bunch winding thread can be scraped off in this state. To be

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 (a), the hook device 16 is normally provided at the standby position of the hook device 16, and when the cylinder 52 is actuated, the operation of the hook device 16 shown in FIG.
As shown in 0 (c), it is rotated so as to be located near the chuck device 19 provided behind the cone portion 38. Further, the suction end portion 51a at the tip of the pipe portion 51 is shown in FIG.
As shown in FIG. 2, the side of the pipe portion 51 facing the hook portion 45 of the hook device 16 is opened and formed, and whether or not the thread is sucked into the pipe portion 51 is formed in or near the pipe portion 51. A fiber sensor (not shown) for detecting is provided.

As shown in FIGS. 11 to 13, 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.

The disk 57 on the back surface of the cone portion 38 is
As shown in FIG. 12, the thread 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. 14 and 15.

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. 14, the support plate 73 of the thread take-up arm 72 is in the standby position shown in FIG. 14 (a), and when the driven sprocket 63 is rotated by the drive motor 60, FIG.
As shown in FIG. 4 (b), the support plate 73 is rotated counterclockwise in the drawing until it becomes substantially vertical. In the state of FIG. 14B, 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. 14B to 14C, the support plate 73 rises substantially vertically, and the lower end thereof 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 will be described with reference to FIGS. 15 (a) and 15 (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, and a rod 76a of the thread take-up cylinder 76, on the other hand, has 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. 15 (a), the guide body 85 is in the position shown by the solid line in the figure, and in this state, the two thread take-up arms 72 have their back 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.

Next, referring to FIGS. 16 and 17, 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. .

Now, FIG. 3 shows a fusing device for carrying out the bunch winding end fusing method of the present invention.

This fusing device is basically composed of a bunch thread guide 12 for pressing and holding a bunch winding thread of a predetermined length and a heat cutter 13.

In the bunch thread guide 12, a guide body 26 is rotatably supported by a fixed frame 25 of the support frame 7 about 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 tip portion formed in a quadrangular cross section, has a hook-shaped pressing claw 29 at its tip, and the heater 3 protruding from the inside of the guide body 26 toward the pressing claw 29.
0 is provided to configure the heat cutter 13. When the guide body 26 is rotated from the standby position of FIG. 3 (a) to the rotation position of FIG. 3 (b), the tip of the presser pawl 29 shown in FIG. 3 (c) changes to the state shown in FIG. 3 (c). As shown, it hits a predetermined position on the paper tube B. In this state, the yarn Y _P of 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 unwinding operation described later. The vicinity of Y _P is blown.

The bunch seal applicator 11 is shown in FIGS.
As shown in FIG. 3, the nip side thread end cut by the heat cutter 13 is attached to the support frame 7 above the paper tube B so as to be able to move up and down.

The details of each part of the yarn processing device 14 have been described above. Next, the bunch winding processing method in this yarn processing device will be described with reference to FIG.
This will be described with reference to FIGS. 18 to 29, (a) shows a front view of the processing device 14, and (b) shows a front view of the package P viewed from the processing device 14 side.

First, as shown in FIG. 18A, 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. 19, when the base 36 moves to the paper tube B and is fitted as shown in FIG. 19A, 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. 19, 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. 20, when the base 36 is completely retracted, the hook device 16 rotates 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 with 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, with the suction mouth 18 sucking the yarn Y, the bunch seal applicator 11 descends as shown in FIG. 22, and the yarn Y ₀ on the nip N side of the yarn Y _P pressed by the bunch yarn guide 12 is pressed. 23, and the bunch seal 120 as shown in FIG. 23 is attached, whereby the yarn Y 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. 20 to 22, it partially digs into the slit S and extends from the circumferential direction of the paper tube B toward the suction pipe 18 in several lines. It is a thread. Then, as shown in FIG. 24, 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. 25 (b), the cylinder 54 of the chuck device 19 is operated to move the movable chuck 55 to the fixed chuck 56, and the yarn Y on the suction pipe 18 side is chucked between them. .

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.

Next, when the chuck of the chuck device 19 is released as shown in FIG. 27, 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. When the support plate 73 is further raised from this state, the yarn which has bitten into the slit S is completely removed, and when further raised as shown in FIG. 28, the yarn between the pressing point Y _P and the yarn 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.

The fusing of the yarn by the heat cutter 13 will be described in detail with reference to FIGS.

First, FIG. 1 shows the state described with reference to FIG. 25, that is, the yarn Y ₀ having a predetermined length from the nip point is sealed by the seal 120.
In the state of being stopped by, the pressing claw 29 at the tip of the bunch thread guide 12 hits the paper tube B, and the thread Y on the starting end side from the pressing point Y _P and the thread Ys biting into the slit S are both chucked by the chuck device. It is in. When the thread take-up arm operates in this state, the thread Ys that has entered the slit S and the pressing point Y
The yarn Y on the starting end side is bundled from _P , the chuck device is released, and the arm is raised while being sucked by the suction mouth. In this case, when the bundled points are set to O as shown in FIG. 2, a step is formed between the yarn Y on the starting end side and the yarn Ys biting into the slit S at a predetermined angle θ from the pressing point Y _P , and the heat cutter 13 has a step. Only the yarn Y on the starting end side comes into contact with the pressing point Y _P to be melted, and the yarn Ys that has bitten into the slit S is removed from the slit S.

After this, when the thread take-up arm 72 is opened as shown in FIG. 29 (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.

30 to 32 show an example in which the sub-ring device 20 is used to perform bunch unwinding.

First, in the example of FIGS.
18 to 22 are the same, and the bunch seal 120 is attached with the yarn Y _O having a predetermined length.

After the bunch seal applicator 11 is lifted in the state shown in FIG. 22, the sub ring device 20 as shown in FIG.
When the ring plate 93 is rotated to the same position as the shaft center of the paper tube B, the thread that has bitten into the slit S is spread from the slit S on the outer periphery of the ring plate 93 and then is sucked by the suction pipe 18. . At this time, the heat cutter 13 of the bainy thread guide 12 is in a heated state, and the presser thread Y
_From the point _P , the thread on the ring plate 93 side is blown. In this way, the ring plate 93 can also generate the angle θ in FIG. 2, and the fusing of the yarn can be easily performed.

Next, as shown in FIG. 31, the yarn Y on the suction pipe 18 side is chucked by the chuck device 19, and in this state, the support plate 73 of the yarn removing device 17 is rotated to move between the ring plate 93 and the cone body 15. And the yarn take-up arm 72 is actuated as shown in FIG. 32 to bundle the yarn Y between the ring plate 93 and the chuck device 19. When the base 36 is retracted from this state, the thread that has entered into the slit S is pulled radially outward by the ring plate 93, so that it can be easily removed. Thereafter, when the thread take-up arm 73 is opened and the chuck of the chuck device 19 is released, the yarn Y is sucked and removed by the suction mouth 18, and thereafter, the removing device 17 and the sub ring device 20 are rotated to the standby position and the bunch yarn is Guide 12
Is rotated upward to complete the yarn processing.

[0057]

In summary, according to the present invention, when processing a bunch wound yarn, the bunch yarn guide holds a yarn of a predetermined length from the nip point and releases the yarn on the winding start end side from the holding point. By fusing the yarn near the pressing point with the heat cutter, the yarn left in the paper tube can be released without damage.

[Brief description of drawings]

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

FIG. 2 is an explanatory view when the yarn is fused in the present invention.

FIG. 3 is a diagram showing details of a bunch thread guide and a heat cutter of the present invention. It is a detailed view of the processing apparatus of FIG.

FIG. 4 is an overall view of a yarn processing device according to the present invention.

FIG. 5 is a diagram showing details of the yarn processing device of FIG. 4;

FIG. 6 is a left side view of FIG.

FIG. 7 is a diagram showing details of the paper tube holder of FIG.

FIG. 8 is a diagram showing details of the cone body and the hook device of FIG. 5;

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

FIG. 10 is a diagram showing details of the cone body and the suction pipe of FIG.

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

FIG. 12 is a left side view of FIG. 11.

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

FIG. 14 is a diagram showing details of the yarn removing device of FIG. 5;

FIG. 15 is a diagram showing details of the thread take-up arm shown in FIG. 14;

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

FIG. 17 is a left side view of FIG.

FIG. 18 is a schematic explanatory view showing a start state of the bunch winding process in the present invention.

FIG. 19 is a schematic explanatory view showing 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. 20 is a schematic explanatory view showing a state in which the bunch winding yarn is unwound by the hook device in the bunch winding process of the present invention.

FIG. 21 is a schematic explanatory view of a state in which the bunch wound yarn unwound in the bunch winding process in the present invention is sucked by the suction pipe.

FIG. 22 is a schematic explanatory view showing an operating state of the bunch seal applicator in the bunch winding process according to the present invention.

FIG. 23 is a perspective view of a package when a bunch seal is applied in the bunch winding process of the present invention.

FIG. 24 is a schematic explanatory view showing an operation start state of the yarn removing device in the bunch winding process according to the present invention.

FIG. 25 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. 26 is a schematic explanatory view showing an operating state of the yarn removing arm of the yarn removing device in the bunch winding process according to the present invention.

FIG. 27 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. 28 is a schematic explanatory view showing a state in which a yarn removing device removes the yarn biting into the slit and the heat cutter cuts the yarn in the bunch winding process in the present invention.

FIG. 29 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 according to the present invention.

FIG. 30 is a schematic explanatory view showing another embodiment of the bunch winding process in the present invention, showing a state in which the sub-ring device is operated from the state in FIG. 22.

FIG. 31 is a schematic explanatory view showing a state in which the yarn removing device and the chuck device are operated in another bunch winding process of the present invention.

FIG. 32 is a schematic explanatory view showing a state in which the cone body is retracted to remove the yarn biting into the slit in another bunch winding process of the present invention.

[Explanation of symbols]

 12 Bunch thread guide 13 Heat cutter 14 Bunch unwinding device B Paper tube P package

Claims (1)

[Claims] 1. A bunch winding method for a package formed by hooking a starting end of a thread in a slit formed in an end portion of a paper tube, bunch winding, and then performing main winding through a nip point. Press the bunch winding thread of a specified length from the nip point at the tip of the bunch thread guide, release the remaining bunch winding thread from the pressing point to the starting end, and lift the released thread radially outward and rise from the pressing point. A method for fusing the end of a bunch wound yarn, which comprises fusing the yarn by contacting it with a heat cutter of a bunch yarn guide.