JP2012218404A - Manufacturing device of bead core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the manufacturing device of a bead core which can eliminate the fray of tying threads wound around the bead core.SOLUTION: The manufacturing device of a bead core includes a thread winding means which ties the winding start end part and a winding stop end part of the bead core to the bead core by winding the tying threads around the outer periphery of the bead core while rotating the bead core, and the thread winding means is provided with a thread pressing mechanism for pressing the tying threads wound around the outer periphery of the bead core on the bead core. Also, the thread pressing mechanism is provided with a brush member and is configured so that bristle tips of the brush bristles of the brush member presses the tying threads on the bead core.

Description

  The present invention relates to a bead core manufacturing apparatus capable of suppressing the occurrence of defective products.

  A bead core manufacturing apparatus is an apparatus that manufactures a bead core by winding a bead wire in an annular shape (for example, Patent Document 1).

  FIG. 4 is a perspective view schematically showing a conventional bead core manufacturing apparatus. FIG. 5 is a perspective view schematically showing a defective bead core.

  As shown in FIG. 4, the bead core manufacturing apparatus 10 includes a thread winding means 40. The thread winding means 40 is configured so that the end portion of the bead wire is spirally wound around the outer periphery of the portion of the bead core 2 where the bead wire winding start end and the winding end end are located. Used to prevent peeling.

JP 2011-37059 A

  However, as shown in FIG. 5, the bead core 2 manufactured by the conventional bead core manufacturing apparatus has a problem that defective products are likely to occur due to the end 3 a of the retaining thread 3 being frayed.

  Therefore, in view of the above-described problems of the prior art, the present invention provides a bead core manufacturing apparatus that can suppress the occurrence of defective products of the bead core by preventing fraying of the thread that is wound around the bead core. And

The invention described in claim 1
A bead core manufacturing apparatus for manufacturing a bead core formed by winding a bead wire in an annular shape,
A thread winding means for fastening an end of the bead wire to the bead core by spirally winding a fastening thread around the bead core while moving the bead core;
A bead core manufacturing apparatus comprising: a thread presser mechanism for pressing the clasp wound around the bead core against the bead core.

The invention described in claim 2
The thread holding mechanism includes a brush-like member,
2. The bead core manufacturing apparatus according to claim 1, wherein the clasp is pressed against the bead core by a bristle tip of the brush-like member. 3.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing apparatus of the bead core which can suppress generation | occurrence | production of the defective product of a bead core can be provided by preventing fraying of the fastening thread wound around a bead core.

It is a perspective view which shows typically the manufacturing apparatus of the bead core which concerns on one embodiment of this invention. It is a perspective view which shows typically the thread holding mechanism of the manufacturing apparatus of the bead core which concerns on one embodiment of this invention. It is a perspective view which shows typically the bead core of an accepted product. It is a perspective view which shows typically the manufacturing apparatus of the conventional bead core. FIG. 3 is a perspective view schematically showing a defective bead core.

  Hereinafter, an embodiment of a bead core manufacturing apparatus according to the present invention will be described with reference to the drawings.

1. Configuration of Bead Core Manufacturing Apparatus FIG. 1 is a perspective view schematically showing a bead core manufacturing apparatus according to the present embodiment. FIG. 2 is a perspective view schematically showing a yarn holding mechanism of the bead core manufacturing apparatus according to the present embodiment. FIG. 3 is a perspective view schematically showing an acceptable bead core.

  As shown in FIG. 1, the bead core manufacturing apparatus 1 includes a thread winding means 4 for winding the retaining thread 3 around the outer periphery of the bead core 2 and a thread pressing mechanism 7.

  The thread winding means 4 includes a thread winding disk 6 having a notch 5 and a thread supply means (not shown). The thread winding disk 6 is disposed in a thread winding portion for winding the retaining thread 3 around the bead core 2, and the thread retaining section 3 is supplied with the retaining thread 3 by the thread supplying means. The material of the retaining thread 3 is nylon 6.

  In the present embodiment, the thread presser mechanism 7 is formed by a brush-like member 50. The brush-like member 50 is formed by implanting brush hairs 52 along the frame body 51 on the inner peripheral side of the horizontal U-shaped frame body 51.

  As shown in FIG. 2, the brush bristles 52 of the frame 51 include upper brush bristles 52 a planted on the upper frame 51 a of the frame 51 and lower brushes planted on the lower frame 51 b of the frame 51. It is comprised from the bristles 52b and the arc-side brush bristles 52c planted in the arc-side frame 51c.

  The upper brush bristles 52a, the lower brush bristles 52b, and the arc-side brush bristles 52c are planted in a dense state, and the top ends of the upper brush bristles 52a, the lower brush bristles 52b, and the arc-side bristles 52c are as a whole. It spreads like a fan. Further, the tips of the upper brush bristles 52a and the arc-side brush bristles 52b are in contact with each other, and the tips of the arc-side brush bristles 52c are planted so as to be collected at the center of the arc of the arc-side frame 51c.

  The brush-like member 50 configured as described above is attached to the winding disk 6 and rotates together with the thread winding disk 6.

  Further, the bead core manufacturing apparatus 1 includes a rotation mechanism for rotating the bead core 2, and the rotation mechanism includes a guide roller 41.

2. Next, the operation of the bead core manufacturing apparatus will be described.

  The bead core 2 is formed by winding a bead wire in an annular shape, and a retaining thread 3 is wound around the outer peripheral surface of the bead core 2. Specifically, the staple 3 is wound by the bead core manufacturing apparatus 1 performing the following operation.

  As shown in FIG. 1, the bead core 2 is set in the rotating mechanism in a state where the bead core 2 is inserted through the notch 5 and the brush-like member 50 of the thread winding disk 6. In this state, the bead core 2 is rotated in the direction indicated by the arrow b in FIG. 1 and the thread winding disk 6 is rotated in the direction indicated by the arrow a in FIG. It is wound spirally. Thereby, the winding wire end portion and the winding end portion are fastened to the bead core 2.

  The bead core 2 around which the retaining thread 3 is wound passes through the brush-like member 50 while scraping the bristles of the bristles 52a, the bristles 52b, and the bristles 52c of the brush-like member 50. At this time, the retaining thread 3 is pressed against the outer peripheral surface of the bead core 2 by the elastic restoring force of the bristles of the upper brush bristles 52a, the lower brush bristles 52b, and the arc side bristles 52c. As a result, the retaining thread 3 is pressed down uniformly, so that no fraying of the retaining thread 3 occurs, and an acceptable bead core 2 can be manufactured as shown in FIG. Note that the end portion of the retaining thread 3 that has been wound is cut by a cutting means (not shown).

3. Advantages of the present embodiment (1) According to the present embodiment, the occurrence of fraying of the retaining thread 3 can be suppressed as described above, so that the occurrence of defective products of the bead core can be suppressed.

(2) Further, since the generation of defective bead cores can be suppressed by the simple means of the brush-like member 50, the equipment investment can be reduced and the maintenance becomes easy.

(3) Furthermore, since it is not necessary to check for fraying of the suture thread, the work load is reduced.

1. Example and Comparative Example This example is an example in which the bead core was manufactured by changing the diameter of the bristle of the brush-like member using the bead core manufacturing apparatus of the above embodiment, and the brushes of Examples 1 to 4 The diameter of the bristle of the shaped member is as shown in Table 1.

  The bristle of the brush-like member used in the present example is made of nylon, and the frame is made of aluminum. The vertical dimension of the frame is 39.0 mm, the horizontal dimension is 40.0 mm, and the thickness dimension is 3.0 mm.

  The comparative example is an example in which a bead core is manufactured using the above-described conventional bead core manufacturing apparatus.

2. Measurement Conditions and Evaluation in Examples and Comparative Examples Regarding the rotation of the bead core when the fastening thread is wound around the bead core, the spindle rotation speed is set to 100 rpm, the spindle moving speed is set to 12 mm / sec, and the presence or absence of fraying of the fastening thread, and The presence or absence of a set failure (defect) at the time of setting the bead core accompanying the provision of the brush-like member was checked.

  Table 1 shows the check results.

  From Table 1, in Examples 1 to 4, no fraying of the staples occurred, whereas in the comparative example, fraying of the staples occurred. In addition, the number of the frayed staples was about 180 per day, and the occurrence rate was 0.35%.

  From Table 1, in the case of Example 1, the trouble at the time of setting did not generate | occur | produce, but in the case of Examples 2-4, the trouble generate | occur | produced. Thereby, it has confirmed that the one where the brush hair diameter of a brush-like member was thin was easy to set.

  While the present invention has been described based on the embodiments, the present invention is not limited to the above embodiments. Various modifications can be made to the above-described embodiments within the same and equivalent scope as the present invention.

DESCRIPTION OF SYMBOLS 1, 10 Bead core manufacturing apparatus 2 Bead core 3 Thread 3a Thread end 4, 40 Thread winding means 5 Notch 6 Thread winding disk 7 Thread holding mechanism 41 Guide roller 50 Brush-like member 51 Frame 51a Upper frame 51b Lower Side frame 51c Arc side frame 52 Brush hair 52a Upper brush hair 52b Lower brush hair 52c Arc side brush hair

Claims (2)

A bead core manufacturing apparatus for manufacturing a bead core formed by winding a bead wire in an annular shape,
A thread winding means for fastening an end of the bead wire to the bead core by spirally winding a fastening thread around the bead core while moving the bead core;
An apparatus for manufacturing a bead core, comprising: a thread presser mechanism for pressing the clasp wound around the bead core against the bead core. The thread holding mechanism includes a brush-like member,
2. The bead core manufacturing apparatus according to claim 1, wherein the binding thread is pressed against the bead core by a bristle tip of the brush-like member.

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