JPH0556969U - Capsule-controlled bobbin twisting mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] A yarn unwound from a bobbin can be twisted at a high speed at a constant tension and with extremely low air resistance. For example, to provide a "bobbin twisting mechanism" to which a liquid processing function such as oiling processing can be added. [Structure] A bobbin fitted on a spindle and spun is covered with a capsule so that a required braking force is applied to a yarn unwound by ballooning.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention is an improvement of a twisting device, and more specifically, a yarn unwound from a bobbin can be twisted with a constant tension and with almost no air resistance. If necessary, the present invention relates to a capsule-controlled bobbin twisting mechanism to which liquid treatment such as oiling treatment can be added.

[0002]

[Prior Art]

 As is well known, in the so-called "bobbin twisted yarn", the raw yarn wound on the bobbin (including the pre-twisted yarn) is twisted by S twist (right twist) or Z twist (left twist). Is the basis.

By the way, in the above-mentioned conventional "bobbin twisted yarn", a flyer made by molding a piano wire is used to make the twist density of the yarn uniform. There is a problem that twisting quality may be deteriorated due to twisting, variation in unwinding resistance from the bobbin, or variation in air resistance, resulting in poor yarn quality.

Nevertheless, in the era when the old type shuttle looms were common, it was sufficient to use small diameter winding with a low processing speed and a small amount of yarn. Even if the tension was uneven, it was possible to correct it manually because the winding diameter and the yarn length were small, and there was no serious problem.

However, in today's world where innovative looms such as jet loom, rapier room, bullet room, etc. and high-speed warp knitting machines have become popular, the processing speed has become extremely high, and as a result, a large diameter with a large amount of yarn Since the bobbin of No. 3 has been used normally and the twisting process has also been required to be sped up, a yarn that is unwound at a change in the winding diameter or at a high speed and strongly ballooned by centrifugal force can be used. Fluctuations in the received air resistance are inevitably large, and the situation is no longer able to be dealt with by long-established measures such as the removal of trapped cotton dust and manual correction of tension unevenness as before. is there.

[0006]

[Technical issues to be solved]

 The present invention was made to break the technical bottleneck as described above in the conventional "bobbin twisted yarn", and the technical problem is that the yarn unwound from the bobbin is constantly twisted. Capsule control that can perform twisting processing at high speed with high tension with extremely low air resistance and, if necessary, can also add liquid processing functions such as oiling processing. It is to provide the bobbin twisting mechanism of the formula.

[0007]

[Means adopted for solving the problem]

 Means adopted by the present inventor to solve the above technical problems will be described below with reference to the accompanying drawings.

[0008] That is, the present invention includes a rotation driving means which is a spindle 1 which is driven to rotate; and a yarn feeding means which is a bobbin 2 that is fitted to the spindle 1 and that spins when the spindle rotates. The bobbin 2 is wrapped in a required space, and the yarn Y that is unwound while forming a balloon from the bobbin 2 on the inner wall surface 31 is fed out from the threading hole 32 provided on the extension line of the spin axis to form a capsule 3. There is a gist in the capsule control type bobbin twisting mechanism configured by adopting a tension adjusting / windproof means; and a twisting guide 4 which is a twisting guide 4 arranged on the yarn path sent out from the capsule 3. As a result, the yarn unwound and twisted from the bobbin can be twisted at a high speed at a constant tension and with almost no air resistance. Than it is.

Further, according to the present invention, a working fluid pocket 33 is further provided at a required position of the capsule 3 in the capsule control type bobbin twisting mechanism having the above-mentioned configuration, and the required working fluid E is stored in the pocket 33. Then, it is spread on the inner wall surface 31 by a centrifugal force generated when the capsule rotates, and the unwinding yarn Y 1 is brought into contact with the spread working fluid while forming a balloon from the bobbin 2 to perform the oiling treatment. There is an additional point in that it is possible to add a liquid treatment function such as.

[0010]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. 1 is a front view showing a first embodiment of the present invention, FIGS. 2 to 4 are examples of the shape of a twisting guide, FIG. 5 is an explanatory view of one mode in which a yarn is unwound from a bobbin, and FIG. FIG. 7 is a front view showing an example of the shape of the capsule, and FIG. 7 is a front view showing a second embodiment of the present invention.

In the first embodiment shown in FIG. 1, what is indicated by reference numeral 1 is a spindle, which is rotationally driven by a conventionally known mechanism (not shown). A bobbin 2 which is generally used in the past and around which a yarn to be twisted (untwisted or ply-twisted yarn) is wound is fitted to the spindle 1, and the bobbin 2 is further wrapped. When the hollow warhead-shaped capsule 3 is attached and the spindle 1 is rotated, the bobbin 2 and the capsule 3 are integrally spun.

The capsule 3 is composed of a bottom plate 3a fitted to the spindle 3 and a warhead-shaped cylinder 3b fitted to the upper surface of the bottom plate 3a. The cylinder 3b encloses the bobbin 2. Therefore, the inner wall surface 31 of the tubular portion 3b has a function of braking the balloon formed by the yarn Y unwound from the bobbin 2. By the way, the inner shape of the inner wall surface 31 of the capsule 3 is related to the braking force on the yarn Y ballooned inside the capsule 3. Therefore, if the contact amount to the yarn Y is made small as shown in FIG. 6, the braking force becomes small. can do.

A threading hole 32 is provided at the head of the capsule 3 so that the yarn Y unwound from the threading hole 32 can pass out of the capsule 3.

Further, a twisting guide 4 in the shape of a corner for twisting the yarn Y coming out of the yarn passing hole 32 is fixed to the crown of the capsule 3, and the yarn coming out of the yarn passing hole 32 is fixed. When Y is wound around the twisting guide 4 and passes through, a predetermined twist is added.

However, when the twisting process is performed by the twisting mechanism of the present embodiment, the yarn Y unwound while forming the balloon from the bobbin 2 comes into contact with the inner wall surface 31 of the capsule 3. Since the yarn Y passes through the twisting guide 4 and is twisted with a certain amount of brake applied, the yarn Y does not change from beginning to end due to the interaction between the stable balloon tension and the passing friction force of the twisting guide 4. Will be twisted under the tension of. By the way, the tension of the yarn Y on the bobbin 2 is small in the outer layer part of the bobbin 2 and large in the inner layer part, and in the normal case, a tension difference of about 2 to 3 times that of the outer layer part occurs in the inner layer part. In the example, it is possible to absorb such tension difference and make it constant. However, the tension adjustment as a whole is performed by changing the shape of the twisting guide 4 and adjusting the number of windings of the yarn Y as illustrated in FIGS.

Further, in the capsule 3 that is spinning at the same speed as the bobbin 2, since the air inside the capsule is also rotating at the same speed, the air resistance received by the unwound yarn Y is extremely small. Therefore, even when the yarn is wound in the direction opposite to the twisting direction as shown in FIG. 5, the yarn can be smoothly twisted without being loosened.

Further, since the number of twists of the yarn in the capsule 3 is 0, twisting of the cotton wool does not occur as in the conventional case, and twisting can be performed without generating fluff, so that the quality can be improved. It is possible to obtain a stable product.

The first embodiment of the present invention has a configuration as described above, but the present invention is based on the technical matters described in the "claim for utility model registration" and adds various design changes and technical elements. It goes without saying that is possible.

For example, as shown in FIG. 7, when a working fluid pocket 33 is provided on the inner wall surface 31 of the capsule 3 and a working fluid E such as oil is stored, the centrifugal force generated when the capsule 3 spins. By the force, the working liquid E is spread on the inner wall surface 31, and the yarn Y that is twisted in contact with the inner wall surface 31 is impregnated with the working liquid E and is subjected to a predetermined liquid treatment (for example, oiling treatment). However, it goes without saying that additional modifications of such technical matters belong to the technical scope of the present invention.

[0020]

[Effect of the device]

 As described above with reference to the examples, in the bobbin twisting mechanism of the present invention, the bobbin is wrapped in a capsule and twisted in a state in which a required braking force is applied to the yarn unwound by ballooning. Since the yarn is treated, the yarn can be twisted at a high speed at a constant tension and with extremely low air resistance.

Further, in the bobbin twisting mechanism of the present invention, if a processing liquid pocket is provided on the inner wall surface of the capsule to be covered with the bobbin, the necessary liquid processing (oiling processing in the embodiment) is performed simultaneously with the twisting processing. It is possible to further enhance its practical value.

As described above, according to the present invention, it is possible not only to solve the problem that has been a drawback of the conventional bobbin twisted yarn, but also to implement the structure in a very simple manner. It is very economically and economically advantageous.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

2 (a) and 2 (b) are a partially cutaway side view and a plan view showing an example of the shape of a twisting guide that can be attached to the first embodiment.

3 (a) and 3 (b) are a partially cutaway side view and a plan view showing another example of the shape of the twisting guide that can be attached to the first embodiment.

4 (a) and 4 (b) are a partially cutaway side view and a plan view showing still another example of the shape of the twisting guide that can be attached to the first embodiment.

FIG. 5 is an explanatory diagram of one mode in which the yarn is unwound from the bobbin in the first embodiment.

FIG. 6 is a front view showing a shape example of a capsule in the first embodiment.

FIG. 7 is a front view showing a second embodiment of the present invention.

[Explanation of symbols]

 1 Spindle 2 Bobbin 3 Capsule 31 (Capsule) Inner Wall 32 (Capsule) Threading Hole 33 Machining Liquid Pocket 4 Twisting Guide E Machining Liquid Y Thread

Claims (2)

[Scope of utility model registration request] 1. A spindle 1 which is rotationally driven; a bobbin 2 which is fitted to the spindle 1 and which spins when the spindle rotates; a bobbin 2 is wrapped around a required space to form a bobbin 2. A capsule 3 for sending out a yarn Y unwound while forming a balloon from the bobbin 2 on the inner wall surface 31 from a threading hole 32 formed on the extension line of the spin axis; and a capsule 3 arranged on the yarn path sent out from the capsule 3. A capsule-controlled bobbin twisting mechanism including a twist guide 4. 2. A working fluid pocket 33 is provided at a required position of the capsule 3, and the working fluid E stored in the pocket 33 is generated by a centrifugal force generated when the capsule is rotated.
The capsule-controlled bobbin according to claim 1, wherein the yarn Y unwound while forming a balloon from the bobbin 2 comes into contact with the working fluid spread on the inner wall surface 31 by being spread on the inner wall surface 31. Twisting mechanism.