JPS6320677Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a traverse guide device for a winder, particularly a free roller type traverse guide device.

Conventionally, fixed guides have been most commonly used as traverse guides for winding machines, but especially when winding yarn such as raw yarn for carbon fiber, the yarn may become fuzzed due to friction with the fixed guide. This resulted in a fatal defect in product quality. To solve this problem, a so-called roller-type traverse guide is known in which the thread is traversed by sandwiching it between two free rollers, but the roller-type traverse guide itself also has the problem of extremely difficult threading operations. Ta.

That is, FIG. 1 shows the winding state of yarn by a conventional roller-type traverse guide, in which yarn 1 is located between free rollers 2 and 3 during steady winding, and is traversed by the bobbin 4. When winding is started, one end of the running yarn 1 is first wound around the rotating bobbin 4, and then the yarn 1 is held between the fingertips and moved around the free roller 2. It was inserted between 3 and 3. Normally, this kind of threading work is complicated because the thread and winding device are both in operation.
Furthermore, considerable skill was required to complete the dotting process within the limited dotting time.

An object of the present invention is to efficiently and easily carry out threading operations on a roller type traverse guide without requiring any skill. Another purpose is to prevent the generation of fluff during yarn winding.

Such an object of the present invention is to provide a traverse guide device for a winding machine that traverses a yarn by sandwiching it between a pair of free rollers. For a winding machine, the winding machine is arranged so as to match the yarn trajectory during steady winding on the roller, and at a position such that the yarn inserted through the opening fits into the gap between the free rollers. This is achieved by means of a traverse guide device.

Hereinafter, the present invention will be specifically explained based on the drawings.

FIG. 2 is a perspective view of a traverse guide device which is an embodiment of the present invention, and FIG. 3 is a model showing the behavior of the yarn during threading in the traverse guide of the present invention. In the figure, an annular guide 5 attached to the fixed shafts of free rollers 2 and 3, which are traverse guides, is generally flat and has an opening 6 in a portion thereof.

When starting yarn winding, one end of the running yarn 1 is first wound around a rotating bobbin. This yarn is A (or A') of the annular guide 5 that has been traversed.
The thread moves from B to C (or B' to C') on its outer periphery, and is guided by the winding tension of the yarn between the space of the annular guide, that is, between the free rollers 2 and 3, and moves in a steady state. Enters the winding state.

In this way, with the device of the present invention, simply by winding one end of the yarn around the rotating bobbin, the yarn is automatically guided between the free rollers 2 and 3 as the traverse guide moves, and once the yarn is in a steady winding state. Once inserted, it is in a non-contact state with the annular guide 5. For this purpose, the opening of the annular guide is located on the extension of the gap between the juxtaposed free rollers and approximately opposite to the attachment part of the annular guide, and has a size smaller than the roller gap, and the annular guide on the traverse guide so that the center of the space almost coincides with the yarn trajectory on the free roller during steady winding.
For example, it is important to fix it to the roller shaft.

At this time, the annular guide may be attached above or below the free roller, and since the outer peripheral portion of the annular guide comes into contact with the yarn during threading, it is desirable to finish it as smoothly as possible. The shape of the annular guide is, for example, semicircular,
Oval shape, triangular shape with rounded corners, flat plate shape, hemispherical or spherical shape, shape made of wire rod, materials such as iron, aluminum or their alloys, ceramics, plastics, or combinations thereof. The surface finish is generally a mirror finish, metal plating, satin finishing, Teflon coating, etc., and these may be selected as appropriate for implementation.

According to the free roller type traverse guide of the present invention, when threading, simply wind one end of the running thread around the rotating bobbin, and the ring-shaped guide traverses the thread, freeing the thread without requiring any manual labor.・Can be inserted at a specified position between rollers.
Moreover, during steady winding, the yarn and the annular guide are in a non-contact state, so that the generation of fuzz due to abrasion, which occurs in conventional fixed traverse guides, can be completely prevented.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the winding state of yarn by a conventional roller type traverse guide, Fig. 2 is a perspective view of the traverse guide device according to the present invention, and Fig. 3 is a diagram showing the state of thread winding in the traverse guide of the present invention. FIG. 1... Yarn, 23... Free roller, 4...
Bobbin, 5... Annular guide, 6... Opening of annular guide, A, A'→B, B'→C→D... Yarn movement path.

Claims (1)

[Scope of utility model registration request] In a traverse guide device for a winding machine that traverses a yarn by sandwiching it between a pair of free rollers, a partially opened annular guide is placed so that approximately the center of its hollow portion is above the free roller during steady winding. 1. A traverse guide device for a winding machine, characterized in that the traverse guide device is arranged in such a position that the yarn inserted through the opening fits in the yarn trajectory of the free roller and fits in the gap between the free rollers.