JPS5916013B2 - Manufacturing method of design thread - Google Patents

Description

[Detailed Description of the Invention] This invention particularly relates to a method for manufacturing a decorative yarn using a one-step up design twisting machine, and its purpose is to form a decorative yarn by arbitrarily combining core yarns and floating yarns. It is an object of the present invention to provide a method for manufacturing a decorative yarn that can vary the yarn in a variety of ways and that does not cause disturbances such as loops.

Next, an embodiment of the apparatus used for carrying out the method of the present invention will be described with reference to the drawings. In the drawing, 1 is a floating yarn sending roller provided near the bottom of the frame; Floating thread B
-B are pulled out and sent upward.

Reference numeral 3 denotes a lower hollow spindle rotatably supported perpendicularly to the frame K above the floating yarn sending-out roller 1, into which a core yarn package 4 in which the core yarn A is wound is fitted.

5 is a lower flyer loosely fitted to the upper part of the lower hollow spindle 3, and this flyer 5 and the lower hollow spindle 3
A coil spring 6 and an appropriate number of weight washers are interposed between a stopper 7 fixed to the upper end.
14 to adjustably restrict its rotation.

Reference numeral 8 denotes a contact roller horizontally suspended above the lower hollow spindle 3, which in this example rotates clockwise at a circumferential speed slightly higher than the feeding speed of the floating yarn B.
a substantially coincides with the axis of the lower hollow spindle 3.

Reference numeral 9 denotes an id pin placed horizontally on the upper blade of the contact roller 8 on the right shoulder in the drawing.

Reference numeral 10 denotes a lower hollow spindle which is rotatably supported perpendicularly to the frame K above the contact roller 8, and which holds the presser thread C.
A presser thread package 11 wound with is fitted therein.

In this example, the lower hollow spindle 10 is rotating in the opposite direction to the lower hollow spindle 3.

Reference numeral 12 denotes an upper flyer loosely fitted to the upper part of the lower hollow spindle 10, and a weight washer 1 is attached to the upper end of the upper flyer.
3 is loosely fitted, and the unwinding tension of the presser thread C can be adjusted.

15.16 is a spindle belt, 17 is a winding roller,
18 is a winding package.

In this example, the circumferential speed of the take-up roller 17 is the reference speed, and the circumferential speed of the floating yarn delivery roller 1 is increased from this reference speed.

Next, an embodiment of the method of the present invention and its effects will be explained together with the operation of the above-described embodiment apparatus.

First, a plurality of floating yarns B-
B are each drawn upward and introduced into the lower hollow spindle 3 in a focused manner in an aligned manner, and are passed through the spindle 3.

On the other hand, the core yarn A is unwound in a tensioned manner from the core yarn package 4 through the lower flyer 5 whose rotation is regulated, and is pulled out at the reference speed. While rubbing against the left side surface 8a, the core yarn A is combined and twisted with the floating yarn B-B which is joined in an overfeed manner to form a combined twisted yarn E.

In this twisted yarn E, the floating yarn B-B is the core yarn A.
The excess yarn length due to this overfeed is assisted by the rotation of the contact roller 8 and distributed in the length direction of the core yarn A, and the floating yarns B to B are twisted around the core yarn A. loops, etc. are formed sequentially.

In addition, when forming this loop, the core yarn A is unwound while rotating around the core yarn package 4 as the lower flyer 5 rotates, so that the surface 8a of the contact roller 8 is oscillated in the horizontal direction. At the same time, the part where the floating yarn B-B is twisted also oscillates.

(See Figure 2) Furthermore, the twisted yarn E passes through the guide pin 9 above the contact roller 8 while being bent in a reverse shape.
The rubbing of the plied and twisted yarns E against the contact roller 8 is ensured, and tension fluctuations due to the swinging of the plied and twisted portions are absorbed.

Subsequently, the twisted yarn E passes through the lower hollow spindle 10,
Above the spindle 10, the presser yarn C, which is unwound in tension from the presser yarn package 11 via the upper flyer 1-2, is twisted in the opposite direction to the twisting direction of the twisted yarn E to form a design yarn F. Then, it is wound up into a winding package 18 by a winding roller 1T.

Therefore, the floating yarn B-B is placed in the package 2~
Since the threads are individually pulled out from the threads 2 and combined during running, the length of feed between the floating threads B and B is uniform, and even when floating threads B and B with significantly different counts and yarn qualities are used together. As a result of no disturbance or irregularity in loops caused by differences in thread thickness, etc., it is possible to easily form design threads with various shapes by using a wide range of floating threads B-B.

Furthermore, at the plied and twisted part where the core yarn A and the floating yarn B-B are joined, the plied and twisted yarn E is rubbed in a free state by the contact roller 8, which rotates at a circumferential speed higher than its running speed, so that loops etc. Formation is assisted, and loops are formed smoothly and reliably, and unlike conventional methods, the loops are nipped by gripping rollers and deformed, and the plying and twisting parts are forcibly restricted and incorrect tension is applied. This improves the texture of the designed yarn, and since irregular tension and twisting torque are not hidden in the designed yarn, even if the tension of the designed yarn is alleviated in subsequent processes, loops etc. It has the advantage of not causing yarn breakage or yarn disorder.

Furthermore, in this example, the floating yarn B-B is actively fed at a steady speed by the floating yarn sending roller 1 from a package that is placed still, so unlike the conventional method, multiple floating yarns are combined in a separate process. There is no need to yarn, the yarn doubling process can be omitted, and the package diameter of the core yarn package 4 fitted to the lower hollow spindle 3 can be reduced, so the rotation speed of the hollow spindle 3 can be increased to increase productivity. It has a certain effect.

Furthermore, even if the floating yarn is less strong, it is sent out by the floating yarn sending roller 1 and is not unduly tensioned by ballooning or the like, so it can be conveniently used without any trouble.

In addition, in this example, since the presser yarn C is twisted in the opposite direction to the twisting direction of the combined and twisted yarn E, the floating yarn B-B is securely held, and the combined and twisted yarn E and presser yarn C are twisted together. This has the effect of canceling out the twisting torque of the design yarn F and significantly reducing the twisting torque of the decorative yarn F.

That is, in the present invention, a plurality of floating lines that are actively sent out are collected in an array, passed through a rotatably supported hollow spindle, and then unwound from a package fitted to the hollow spindle. The core yarn is twisted in an overfeed manner, and at this twisting portion, the core yarn and the floating yarn are rubbed against the movable surface of the contact roller, and the presser yarn is further twisted. By doing so, it is possible to vary the form of the design thread by arbitrarily combining the counts, materials, and yarn quality of the core thread and floating thread over a wide range, and the loops formed can form a uniform design thread. This invention is extremely excellent as a method for producing decorative threads.

In addition, in the above embodiment, the floating yarn B-B was unwound and pulled out above the package that was placed still, but the package may be rotated and pulled out laterally, or a large number of packages may be used. If necessary, it may be supplied from a back creel or the like.

[Brief explanation of drawings]

The drawings show an embodiment of the apparatus used to carry out the method of the present invention, and FIG. 1 is a side view showing the entire apparatus, and FIG. 2 is an enlarged front view of the main parts. 3... Lower hollow spindle, 4... Core thread package, 8... Contact roller, A...
- Core thread, B...Floating thread, F...Design thread.

Claims (1)

[Claims] 1 Multiple floating threads that are actively sent out are collected in a lined manner and passed through a rotatably supported hollow spindle, and then the core thread is unwound from a package fitted on the hollow spindle. On the other hand, the design yarn is twisted in an overfeed pattern, the core yarn and the floating yarn are rubbed against the rotatable surface of a contact roller at this twisting part, and the presser yarn is twisted. Production method.