JPS6048432B2 - winding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding machine equipped with a thread switching mechanism.

In general, in order to continuously wind yarn in a take-up machine, drawing machine, false twister, stretch false twister, etc., a waist roller is provided connected to the winding bobbin, and a guide located on the traverse roller is used to swing the yarn. Either the waist roller is configured to be movable between the fulcrum position and the waist roller position, or the waist roller is provided at a position coaxial with the winding bobbin and at a predetermined distance, and the yarn guide kite is moved between the inactive position and the activated position. When the winding bobbin is fully wound, the yarn at the winding position is moved to the waste roller, the full bobbin and the empty bobbin are exchanged, and then the yarn is wound on the waist roller. A thread switching mechanism is used in which the thread that has been taken is moved to the center of the winding bobbin by the tension of the thread itself and is wound thereon.

Winding machines having a thread switching mechanism with such a configuration are disclosed in, for example, Japanese Patent Publications No. 42-19493 and Japanese Patent Publication No. 47-956.
It is stated in the official bulletin.

However, with the above-mentioned winding machine, in the former case, the yarn is transferred from the waist roller to the winding bobbin, and at the same time as it is wound around the bobbin, it is traversed and wound, so a tail is formed at the end of the bobbin. along with being unable to form
There is a problem in that the yarn wound around the waist roller cannot be removed without stopping the machine, and in the latter case, it is not possible to form a tail at the end of the winding bobbin. Because the yarn is not forcibly conveyed to the winding bobbin position and wound, the yarn falls into the gap when moving from the waist roller to the winding bobbin, making it impossible to wind the yarn securely. This has some problems.

The present invention solves the above-mentioned problems and provides a winding machine that can reliably wind yarn around the end of a winding bobbin and form a tail.

That is, the present invention provides a winding bobbin mounting cradle having a yarn path regulating guide in the bobbin mounting portion, a bobbin driving device, and a traverse swinging cradle having a swing fulcrum guide that moves between a swing fulcrum position and a yarn switching position of a waist roller. The device passes through the waist roller provided at the end of the winding bobbin and between the swing fulcrum guide and the winding bobbin, and the swing fulcrum guide provided between the swing fulcrum and the winding bobbin to the waist roller. A winding machine is provided which includes a swinging kite that supports the wound yarn and winds it around a winding bobbin. The configuration of the winder of the present invention will be explained based on the drawings.

Reference numeral 1 denotes a cradle on which the winding bobbin A is mounted, and is designed to swing around a shaft 2 as a fulcrum.

3 is a driving roller that rotates the winding bobbin A.

The bobbin can also be directly driven and rotated. 4 is a traverse device provided corresponding to the winding bobbin.

5 is a rod connected to a fluid cylinder (not shown) equipped with a cam mechanism for minute movement, and a swing fulcrum guide 6
is installed in a predetermined position. The rod 5 is adapted to reciprocate the swinging fulcrum guide 6 between the traversing fulcrum position A and the yarn switching position opening of the waist roller. Reference numeral 7 denotes a shaft that is rotated only when switching yarns, and a waist roller 8 is mounted at a position corresponding to the end of the winding bobbin.

The shaft 7 uses a drive device for the roller 3 or a drive device including a high-speed rotary motor and a low-speed rotary motor to wind the yarn onto the waist roller 8 at the same winding speed when switching the yarn. Time is now driven at a slower speed. or,
The waist roller 8 can be fixed to the shaft 7, but if the configuration is such that slipping occurs between the shaft 7 and the waist roller 8 when an external force acts on it, it will be difficult to prevent thread changeover from occurring or when thread waste is being disposed of. Since the waist roller can be stopped at times such as , work efficiency can be improved.
Reference numeral 9 denotes a shaft connected to a swinging mechanism (not shown), and an arm 10 having a yarn holding guide 11 at its tip is attached.

By rotating the shaft 9, the yarn holding guide 11 is swung from a position C close to the swing fulcrum guide 6, which has been moved to the yarn switching position opening of the waist roller, to a take-up bobbin position E. 12 is a bracket that rotatably supports the rod 5 and the shafts 7 and 9; 13 is a bracket that supports the cradle 1;
This is a thread path regulation guide fixed to the winding bobbin mounting section of the machine.

Reference numeral 14 is a guide that protrudes by the elastic force of a spring 15 and locks the thread, and a nut 16 is screwed onto the end.

When the arm 10 swings and presses the nut 16, the guide 14 retracts from the yarn path to release the yarn and form a tail. The tail length is determined by the time from when the yarn Y is threaded onto the winding bobbin A by the yarn holding guide 11 until the tail forming guide 14 is retracted and the yarn Y is released. Therefore, when changing the tail lengths of multiple weights all at once, this is done by changing the swinging speed of the arm 10. Further, when changing the tail length for each weight, this is done by changing the screwing amount of the nut 16 into the tail forming kite 14. The operation, speed change, and operation of the fluid cylinders and the like of each of the above-mentioned drive devices are performed by a separate sequence control device (not shown) based on a full package display signal and the like. The yarn switching operation in the above-mentioned winding machine will be explained.

When a preset amount of yarn is wound on the winding bobbin A,
A thread switching operation start signal is input to a control device (not shown), and a clutch of a driving device (not shown) for the bobbin driving roller 3 is operated to rotate the waist roller 8 together with the shaft 7. When the waist roller 8 reaches the same rotational speed as the bobbin drive roller 3, the drive device is switched to a low-speed drive path, and at the same time, a fluid cylinder (not shown) is actuated to swing the swing fulcrum guide together with the rod 5. Move it from the fulcrum position A to the waist roller thread switching position. At this time, the yarn Y passes through the winding section of the waist roller 8 and is hooked onto the locking section a. By this operation, the yarn Y located between the waist roller 8 and the winding bobbin A is cut. On the other hand, the swing fulcrum guide 6 is slightly reciprocated by the operation of the cam mechanism at the waist roller yarn switching position opening, causing the yarn Y to traverse onto the waist roller 8. Therefore, a large amount of yarn Y can be wound without being wound at the same location, and the number of times the waste yarn wound around the waist roller must be removed can be reduced. With the yarn Y being wound around the waist roller 8 in this manner, the fully wound bobbin is replaced with an empty bobbin. Next, when a winding operation start signal is input to a control device (not shown), the drive device is switched from low speed to high speed, and the winding bobbin A) and waist roller 8 are rotated at a predetermined winding speed.

Then, the swinging mechanism (not shown) of the arm 10 is activated to move the yarn holding guide 11 from the position C to the position E. At this time, the yarn holding guide 11 holds the yarn Y traveling from the swing fulcrum guide 6 toward the waist roller 8 and conveys it to the winding bobbin A. The yarn Y comes into contact with the yarn path regulation guide 13 immediately before being threaded onto the winding bobbin A, and the circumferential speed of the yarn is changed from the thickened position of the waist roller 8 where the yarn is wound. When the yarn holding guide 11 moves to the second position, it is wound around the bobbin A and is locked to the tail forming guide 14. Continue yarn holding guide 1
1 moves to position E, the arm 10 presses the tail forming guide 14 to retract it and release the locked yarn Y. Then, the yarn Y moves toward the center of the winding bobbin due to its own tension and the fact that the swing fulcrum guide 6 has returned to the traverse fulcrum position A, and becomes engaged with the traverse guide of the traverse device. and complete the tail formation. When experiments were repeated using the same spindle with the yarn winding tension and yarn speed constant using the above-mentioned configuration, the variation in tail length was within ±15% at maximum. Arm 1 with the thread switching operation described above.
When the arm 10 swings and reaches the position E, the swing mechanism (not shown) stops, and then swings in the opposite direction to move the arm 10
Return to its original position C. At this time, when the arm 10 is reversed, the tail forming guide 14 protrudes due to the elastic force of the spring 15 and becomes in a state where it can catch the yarn. On the other hand, when the arm 10 moves from the position C to the intermediate position between the two positions while holding the yarn Y with the yarn holding guide 11, the rod 5
The cam mechanism that was making minute reciprocating motions stopped, and
The fluid cylinder operates to move the swing fulcrum guide 6 from the yarn switching position opening of the waist roller to the swing fulcrum position A.

The swing fulcrum guide 6 moves to the traverse swing fulcrum position A, and the yarn Y is removed from the tail forming guide 14 as described above.
It is engaged with the traverse guide of the traverse device, and ends the winding yarn switching operation of the winding bobbin A while being traversed. As described above, the present invention includes a winding bobbin mounting cradle having a yarn path regulating guide in the bobbin mounting portion, a bobbin driving device, and a swinging fulcrum guide that moves between the swinging fulcrum position and the waist roller thread switching position. A traverse device, a waist roller provided at the end position of the winding bobbin and between the swing fulcrum guide and the winding bobbin, and a swing fulcrum guide provided between the swing fulcrum and the winding bobbin, the waist is By supporting the yarn wound around the roller and the swinging guide for winding it around the take-up bobbin, the following effects can be achieved.

(1) The yarn wound around the waist roller via the swing fulcrum guide is held by the swing guide and conveyed to the end of the winding bobbin, and the yarn is kept under low tension by the yarn path regulation guide. Since the yarn is wound, the yarn can be reliably wound in a predetermined position, and a tail can be easily formed.

(2) Since the waist roller is provided at a position facing the end of the winding bobbin and between the swing fulcrum guide and the winding bobbin, the yarn wound around the waist roller during the winding operation can be removed. Work can be done safely.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of the winding machine of the present invention, and FIG. 2 is a side view. FIG. 3 is a detailed view of the tail forming guide section. 1: Cradle, 2, 7, 9: Axis, 3: Drive roller, 4: Traverse device, 5: Rod, 6: Swing fulcrum guide, 8: Waist roller, 10: Arm, 11: Yarn holding guide, 13 :
Thread path regulation guide, 14: Tail formation guide.

Claims (1)

[Claims] 1. A winding bobbin mounting cradle having a thread path regulation guide in the bobbin mounting portion, a bobbin driving device, a traversing device having a swing fulcrum guide that moves between a swing fulcrum position and a yarn switching position of a waist roller, The material is wound around the waist roller through a waist roller provided at the end of the take-up bobbin and between the swing fulcrum guide and the take-up bobbin, and a swing fulcrum guide provided between the swing fulcrum and the take-up bobbin. A winding machine characterized by comprising a swinging guide that supports a yarn and winds it around a winding bobbin.