JPH02231366A - Bunch winding processing device for yarn package - Google Patents

Abstract

PURPOSE:To continuously perform a process of bunch winding promptly and surely with no necessity for human labor by constituting a device of a package supporting means, bunch winding yarn temporary holding means, bunch winding yarn delivery means and a tail bunch reforming means. CONSTITUTION:A bunch winding yarn delivery means C is moved toward the end part of a bobbin 31 on a package supporting means A, advancing into an air gap generated between the bobbin 31 and a yarn of bunch winding 33 hooked, and the means C is moved while in cooperation with rotation of the bobbin 31 removing from it the yarn of the bunch winding 33 delivered to a collar part 15 of a bunch winding yarn temporary holding means B by a pawl 12. A tail bunch reforming means D holds temporarily on the collar part 15 the yarn of the bunch winding 33 once released while sucked, and the yarn is held in its one end, wound and fixed again to the bobbin end part in cooperation with the rotation of the bobbin 31 by the package holding means A, further with the surplus yarn cut and removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bunch winding processing apparatus for yarn packages. More specifically, it relates to a device that unwinds the once-formed bunch winding and re-bunch-winds a specified length of yarn. [Prior Art] It is known to form a bunch winding at the end of a bobbin when forming a yarn package. Since this bunch winding is performed during the winding process, there is a problem in that the length of the bunch winding is generally not the same for each yarn package. Therefore, in order to make it easier to handle the thread in post-processing processes such as thread tying work for the tail end, the bunch-wound thread is removed from the bobbin and the bunch-wound thread is cut to the length required for use in the subsequent process. After cutting the thread, a specified length of thread is wound around the end of the bobbin again. At this time, the thread end is fixed to a bobbin or the like with a seal.

Conventional yarn packages generally use bobbins with smooth surfaces. Therefore, it is difficult to remove the bunch winding provided at the end of the bobbin, and in the case of thick denier thread, the bobbin may be damaged due to the use of a jig to remove or cut it, and the bobbin may be reused. There is a problem that it becomes difficult to use. Furthermore, there is the problem that it takes time to remove the bunch winding, which is related to the denier of the thread.

In order to solve the problem associated with the operation of removing the bunch winding, a bobbin having a recess at the end is used to wind the bunch winding onto the end having the recess, and the recess is used to cut the bunch winding with a knife. A method for removing it is disclosed in Japanese Utility Model Publication No. 60-38617. However, even with this method, there remains the problem that the bobbin is damaged by the cutter, and another problem arises that the length of the yarn wound around the end of the bobbin is insufficient.

[Problem to be solved by the invention]

The present invention solves the problems of the conventionally known bunch winding processing methods described above, and automatically removes the bunch winding from the bobbin without damaging the bobbin to form a tail end having a predetermined length. It is an object of the present invention to provide an apparatus capable of rapidly and reliably performing the processing of bunch winding up to this point continuously without requiring any manpower.

[Means to solve the problem]

A yarn package bunch winding processing apparatus for achieving the above-mentioned objects of the present invention is composed of a package support means A, a bunch winding yarn temporary holding means B, a bunch winding yarn delivery means C, and a tail bunch winding reforming means D. The package support means A is rotatable means that supports a yarn package formed by bunch winding on the uneven area on a bobbin having an uneven area on the outer peripheral surface of the end, and temporarily holds the bunch wound yarn. Means B is disposed opposite to the package support means A and includes a collar portion for temporarily holding the bunch winding yarn, and the bunch winding yarn transfer means C is arranged opposite to the package support means A. It moves toward the end of the bobbin, enters the gap created between the bunch winding thread and the bobbin, hangs the bunch winding thread, and moves in cooperation with the rotation of the bobbin to remove the bunch winding thread from the bobbin. The tail bunch reshaping stage D is provided with a claw configured to deliver the bunch winding yarn to the collar part of the bunch winding temporary holding means B, and the tail bunch reshaping stage D sucks the bunch winding yarn temporarily held on the collar part. While doing so, the thread is released once, and one end of the released thread is grasped, and in cooperation with the rotation of the bobbin by the package support means A, the thread is wound and fixed again around the end of the bobbin, and the remaining thread is cut and removed. It is configured as follows.

〔Example〕

The present invention will be described in detail below with reference to the accompanying drawings showing preferred embodiments of the yarn package bunch winding apparatus according to the present invention. FIG. 1 shows a front view of a preferred embodiment of the yarn package bunch winding device according to the present invention. As shown in the figure, the bunch winding processing apparatus of the present invention includes bag support means A
, a bunch winding yarn temporary holding means B, a bunch winding yarn delivery means C, and a tail bunch winding reforming means D, which are respectively installed on a machine frame partially indicated by 1 in the figure, and constitute an integrated device. In FIG. 1, an overall view of the machine frame is omitted for clarity.

As shown in FIGS. 3 and 4, the yarn package 30 used in the bunch winding processing apparatus of the present invention is wound on a bobbin 31 having a recess 32 on the outer peripheral surface of one end 34, and the bunch winding 33 is formed above the area where the recess 32 is provided.

Therefore, as clearly shown in the cross-sectional view of FIG.
A gap 35 is formed between the bunch winding 33 and the bobbin 31. In the bobbin shown in Figs. 3 and 4, the air gap 3
Although a recess 32 is provided in the end portion 34 of the bobbin 31 to form the recess 32, a convex portion may be provided in place of the recess 32 to form a gap.

The package support means A shown in FIG. 1 is shown with a thread package 30 mounted on its package gripping shaft 3. The package gripping shaft 3 is rotatably supported by the bearing stand 2 in a cantilevered manner, and a booley 5b is attached to the end of the package gripping shaft 3 on the opposite side from the thread package 30. By connecting the mounted pulleys 5a with the timing belt 6, the package gripping shaft 3 and thus the yarn package 30 can be rotated. In the example shown in FIG. 1, the bearing pedestal 2 is fixed to the frame l, but the bearing pedestal 2 is
For example, the package gripping shaft 3 may be configured to be rotatable by 90 degrees, that is, the package gripping shaft 3 can be rotated from the position shown in FIG. 1 to a position perpendicular to the plane of the drawing. If the package gripping shaft 3 is configured to be rotatable in this manner, attachment and detachment of the thread package 30 to and from the package gripping shaft 3 can be facilitated, which is preferable.

The bunch winding temporary holding means B shown in FIG. 1 is disposed opposite to the package gripping shaft 3, and includes a collar portion 15 for temporarily holding the bunch winding formed at the end of the bobbin 31. As shown in the figure, this collar portion 15 is removably fitted into a chuck 15a, and the shaft 15b of the chuck 15a is inserted into the air cylinder 14 to function as a piston. Therefore, by operating the air cylinder 14, the collar portion 15 moves the bobbin 31 of the thread package 30 mounted on the package gripping shaft 3, as shown by the broken line in FIG.
can be moved toward the end of the bobbin 3l to engage with the end of the bobbin 3l. The shape of the collar portion 15 is preferably a conical tip as shown in FIG. The scalar part 15 is the first
When making a cylindrical body as shown in the figure, the diameter of the bobbin 31 is
It is necessary to make it slightly smaller than the outer diameter of. Note that the collar portion 15 may have a tapered shape toward the package gripping shaft 3 instead of having a cylindrical shape. Note that the bunch winding temporary holding means B can be omitted by changing the shape of the pawl of the corbel winding yarn delivery means C, which will be described later, and its operating method. The bunch winding yarn delivery means C shown in FIG. It is equipped with a claw 12 that can enter into. That is, the bunch winding yarn delivery means C includes two guide rails 9a, 9b arranged parallel to each other with an interval on the machine frame 1, and guide rails 9a. Movable table 7 sliding on 9b
and a driving means for sliding the moving table 7 along the guide rails 9a and 9b. The two guide rails 9a and 9b are arranged on the sides of the axis of the yarn package 30 and parallel to the axis, as shown in the side view taken along line 1--H in FIG. As a result, the claw 12 installed on the movable table 7 that slides on the guide rails 9a and 9b can be moved toward the gap 35 above the bobbin 3l. The driving means for sliding the moving table 7 on the guide rails 9a and 9b includes a feed screw 10 disposed on the frame 1 and a motor 11 connected to one end of the feed screw 10, as shown in FIGS. 1 and 2. By providing the moving table 7 with a female screw (shown in the figure) that meshes with the feed screw 10,
The moving table 7 is rotated by rotating the motor l1 in the forward and reverse directions.
can be given a movement toward or away from the package gripping shaft 3.

The movable table 7 is provided with 1,000 stages 8 for winding and unwinding bunches. As shown in FIGS. 1 and 7, the bunch winding and unloading stage 8 includes an air cylinder 8a installed on the movable table 7, a piston 8b that moves up and down by the operation of the air cylinder 8a, and a bracket extending downward from the movable table 7. } 8e, and near the center thereof, it is rotatably supported by a pin 8e at the lower end of the bracket 8e, one end of which is held by a pin 8c at the lower end of the piston 8b, and is swung about the pin 8e by the vertical movement of the piston 8b. It consists of a movable nail tool 2. As shown in FIG. 5, the claw 12 has a tip 12a facing the bobbin 3I when in use.
It is made into a tapered shape so that it can be inserted easily into the gap 35 on L, and is provided with a hole 12b that engages with the pin 8e and a long hole 12c that engages with the bottle 8c. When removing the bunch winding 33, the tip 12a of the claw 12 is lowered by pulling the piston 8b upward, and in this state, the tip 12a of the claw 12
The tip 12a of the claw 12 is inserted into the upper cavity 35, and then the tip 12a of the claw 12 is raised by lowering the piston 8b.
As shown in FIG. 1, the movable table 7 is preferably provided with a claw holder 13 having a tip at a position where it comes into contact with the tip 12a of the raised claw l2. In this way, the bunch winding 3
3 is securely held between the claw 12 and the claw holder l3, and when moving the moving table 7 to the left in FIG. It never comes off.

Note that the claw holder 13 itself may be configured to be swingable like the claws 12, so that the bunch winding 33 can be gripped by the claws 12 more reliably.

The tail bunch re-forming means (D) shown in FIG. 1 includes nozzle devices 16, 17, . 18, and grasping one end of the released thread, the bag support means A
The roller devices 19a, 19 are used to wrap and fix the bobbin end again in cooperation with the rotation of the bobbin.
b. 20 and a cutting device 21 (
Figure 9).

As shown in FIG. 1, the nozzle device includes an upright air cylinder 16 and an air sucker 1 whose lower end is connected to a suction source.
It consists of an air sucker bracket 17 that vertically moves the collar part 8 to a position directly below the collar part 15 in contact with the bobbin 31. The air sucker 18 rises to the position shown in broken lines in FIG. 1 only when starting to release the bunch winding 33, and at other times falls to the position shown in solid lines, the movement of which is provided by the air cylinder 16.

The roller device uses a roller 19a whose shaft is fixed to a predetermined position of the frame and can freely rotate, and an air cylinder 20 to move the roller 1 from the position shown by the solid line in FIG. 1 to the position shown by the broken line.
It consists of a roller 19b that is movable between positions where it comes into contact with roller 9a. As shown in FIG. 9, when the bunch-wound yarn is released by the air sucker 18, the roller 19b
9a and serves to keep the thread stretched in a straight line while the thread extending from the thread package 30 is wound around the bobbin 31 again.

The cutting device 21 is arranged below the bobbin 31 so as to cut the bunch winding yarn 33' extending from the yarn package 30 between the roller devices, as shown in FIG. FIG. 10 shows an example in which scissors 22a and 22b are used as the cutting device 21. The scissors 22a can be opened and closed using the shaft 23 as a fulcrum.
, 22b are arranged on the frame 1, and the slide 25 equipped with a cam 26 is moved left and right by the air cylinder 24, so that the scissors 22a and 22b can be opened and closed to cut the thread 33'. As mentioned above, the bunch winding apparatus of the present invention has various drive devices. That is, in the embodiment shown in FIG. 1, the motor 4 for rotating the package gripping shaft 3, the air cylinder l4 for sliding the collar portion 15 of the bunch winding yarn temporary holding means B, and the movable table 7 of the bunch winding yarn transfer means C. Sliding motor 11, air cylinder 8 for swinging movement of claw l2
a, air cylinder 16 of tail bunch reforming means D;
It is equipped with an air sucker 18, an air cylinder 20, and an air cylinder 24 for operating the scissors. As is clear from the above description, each of the driving devices is required to operate at a predetermined timing. Therefore, in the apparatus of the present invention, the operation of each of the driving devices is controlled by a controller (not shown) at a predetermined timing. It will be done.

Since it is well known to those skilled in the art to operate and control a plurality of drives in sequence, a description of the specific control means used in the device of the invention will be omitted.

[For production]

A preferred method of operating the bunch winding apparatus according to the present invention will be described below.

As shown in FIGS. 3 and 4, a yarn package 30 having a bunch winding 33 formed on the outer peripheral surface of the end portion is attached to the package gripping shaft 3. In this case, it is preferable that the yarn package 30 be installed by rotating the package support means A in FIG. Next, the motor 4 is operated to rotate the package gripping shaft 3 so that the recess 32 of the bobbin 31 of the thread package 30 is in the upper position.

This is an operation performed to ensure that the claw 12 of the bunch winding and delivery means C can be inserted into the gap 35. Note that a mark is placed on the end of the bobbin, and a sensor (
(not shown) near the end of the bobbin, the bobbin 3
This helps to easily and reliably position the recess 32 of 1. Next, the air cylinder 14 of the 1,000 stage B for temporarily holding the bunch winding yarn
is operated to move the collar portion 15 from the position shown by the solid line in FIG. 1 to the position shown by the broken line toward the end of the bobbin 31. FIGS. 7 and 8 show a state in which the tip of the collar portion 15 is inserted into the end of the bobbin 31.

Next, the motor 11 of the bunch winding thread transfer means C is activated to move the moving table 7 closer to the end of the bobbin 31. At this time, the air cylinder 8a is operated to lower the tip 12a (FIG. 5) of the claw l2, and the tip 12a is connected to the bunch winding 33 and the bobbin 3.
It is inserted into the gap 35 (FIG. 6) between the outer circumferential surfaces of the end portions of L. Next, operate the air cylinder 8a in the opposite direction to remove the claw 12.
(Figure 7). However, in this case, as shown in FIG. 7, it is necessary to prevent the diagonal yarn 33a connected from the yarn package 30 to the bunch winding 33 from being picked up by the tip 12a of the claw l2. Attach the diagonal thread 33a to the tip 1
It is not preferable to move the bunch winding 33 while it is being picked up by 2a as it will damage the thread. If the diagonal thread 33a is likely to be picked up by the tip 12a, the thread package may be rotated a little. When lifting the bunch winding 33 with the tip 12a of the claw 12,
The claw holder 13 may be arranged as shown in FIGS. 1 and 8, and the tip 12a may be brought into contact with the claw holder 13. In this way, the bunch winding 33 will not come off from the claw I2 when the bunch winding 33 is moved.

Next, the motor 11 of the bunch winding yarn delivery means C is activated to move the moving table 7 to the left in FIG. 1, and the bunch winding 33 is moved toward the core part 15. At this time, the bunch winding 33 is not moved all at once to the position shown in FIG. 7, but after moving the bunch winding 33 slightly on the bobbin 31, the yarn package 30 is rotated once, and the bunch winding 33 is moved onto the bobbin 31.
It is advisable to move the bunch winding 33 to the core part 15 by moving the moving table 7 to the left again after the bunch winding 33 is securely separated from the entire circumference of the core. Note that the bunch winding temporary holding means B may be omitted, the bunch winding 33 may be held by the claws 12, etc., and the next process of releasing the bunch winding may be performed in this state.

Next, the air cylinder 16 of the tail bunch winding re-forming means D
is operated to bring the mouth of the air sucker 18 close to the bunch winding 33 on the core part 15, and the bunch winding 33 is sucked.

The threads of the bunch winding 33, which are loosely held on the core part l5 and suspended by the claws 12, are successively sucked into the air sucker 18, and the bunch winding 33 is released. Next, core part 1
5 moves to the left in FIG. 1 and returns to its original position, while the tip 12a of the claw l2 moves downward and moves to the left in FIG. 1 to release the thread restraint. After that, the air sucker 18 descends, and at the same time, the roller 19b of the roller device comes into contact with the roller 19a by the operation of the air cylinder 20,
Grasp the thread 33' of the bunch winding 33 (Fig. 9). Next, the motor 4 is operated, and the thread 33' that has been rewound once is wound again onto the outer peripheral surface of the end portion of the bobbin 31. At that time, thread 3
3' is a pair of rollers 19a. 19b, the bobbin 31 is securely wound along the outer circumferential surface of the end part under tension, and when the bobbin 31 rotates a predetermined number of rotations, the air cylinder 24 (the first 10
By operating the thread 33' in a predetermined length, a bunch of thread 33' can be wound around the outer peripheral surface of the end of the bobbin.

The remaining cut yarn is removed by the air sucker 18. If a slit (shown in the figure) is provided at the end of the bobbin 31, the thread 33' is
The end of the can be fixed in the slit. In this way, a yarn package 30 (FIG. 11) having a tail bunch of a predetermined length on the package gripping shaft 3 is obtained.

This thread package 30 can be easily removed from the package gripping shaft 3 by rotating the package gripping shaft 3 by 90'.
As shown in FIG. 12, it is preferable to securely release the bunch winding 33 from the bobbin 31 by using the guide 26 and raising the guide 26 to the position shown by the broken line in FIG. 12(A). This guide 26 is used as a guide 2 when winding the once-released thread 33' onto the bobbin 31 again as shown in FIG. 12(B).
6a, and by lowering the guide 26a just before a predetermined length of thread 33' is wound and cut, the thread 33' under tension can be easily inserted into the slit at the end of the bobbin. can be done.

〔Effect of the invention〕

Since the yarn package bunch winding processing device according to the present invention is configured as described above, the bunch winding of the yarn package can be easily removed without damaging the bobbin.
Further, the work of releasing the bunch winding and the work of rewinding a predetermined length of the bunch winding thread onto the outer circumferential surface of the bobbin end can be performed continuously, quickly and reliably without the need for manpower.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the yarn package bunch winding processing apparatus according to the present invention, and FIG.
3 is a perspective view of a bunch-wound yarn package used in the apparatus of the present invention; FIG. 4 is a sectional view taken along line IV-IV in FIG. 3; The figures are drawings illustrating the shape of the claws used in the device shown in FIG. 1, in which FIG. 5(A) is a plan view, FIG. 5(B) is a front view, and FIG. The fourth one shows the state inserted into the cavity.
7 is a sectional view similar to the figure, and FIG. 7 is a diagram showing the relative positions of the package support means A, the bunch winding yarn temporary holding means B, and the bunch winding yarn transfer means C in a state where the claws are inserted into the gaps, FIG. 8 shows the package support means A, the bunch winding yarn temporary holding means B, the bunch winding yarn delivery means C, and the tail bunch winding reforming means D in a state where the bunch winding is moved onto a part of the core and sucked by the air sucker. FIG. 9 is a diagram showing the relative position of the air sucker, and FIG.
10 is a diagram showing a state in which the cutting device (
10(A) is a front view, FIG. 10(B) is a plan view, and FIG. 11 shows a yarn package processed by the device of the present invention. 12 is a perspective view, and FIG. 12 is a diagram showing the relationship between the guide and the yarn package used when releasing and winding the yarn in bunch winding, FIG. 12 (A) is when released, and FIG. 12 (B) is a diagram showing the time of winding. DESCRIPTION OF SYMBOLS 1...Frame of bunch winding processing device, 3...Package gripping shaft, 4.11...Motor, 7...Movement table, 8a, 14, 16, 20.24-x cylinder, l2 ...Claw, l5...Collar portion, 16...Air sucker 19a, 19b...-Thread gripping roller, 21...
Cutting device, 30... Thread package, 31...
bobbin, 32... recess, 33... bunch winding, 35... void. Figure 2 Figure Figure 26a (A) Figure

Claims (1)

[Claims] A rotatable package support means (A) for supporting a yarn package formed by bunch winding on the uneven area on a bobbin having an uneven area on the outer circumferential surface of the end thereof, and a rotatable package supporting means (A) provided opposite to the package supporting means (A). A bunch winding yarn temporary holding means (B) having a collar portion for temporarily holding the bunch winding yarn, which moves toward the end of the bobbin on the package support means (A), The bunch winding thread is moved into the gap created between the winding thread and the bobbin, and the bunch winding thread is removed from the bobbin by moving in cooperation with the rotation of the bobbin, and the bunch winding thread temporary holding means (B ), and a bunch winding yarn delivery means (C) comprising a claw configured to deliver the bunch yarn to the collar portion of the collar portion; a tail bunch configured to grip one end of the thread that has been removed, cooperate with the rotation of the bobbin by the package support means (A), wrap and fix it around the end of the bobbin again, and cut and remove the remaining thread; A bunch winding device for a yarn package comprising reforming means (D).