JP2547209Y2 - Composition device for multi-layer braid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition device for a multi-layer braid such as a double-tube braid.

[0002]

2. Description of the Related Art Bands that can be manufactured with a conventional braiding machine are mainly band-shaped flat strings, solid round strings, and single-layer hollow round strings. There is only what is described in.

In the composition apparatus described in the publication, a composition path for composing an inner layer of a hollow round cord and a composition path for composing an outer periphery are concentrically arranged at an interval from each other, and a yarn bobbin for forming an inner layer is provided. A reinforcing yarn bobbin for feeding a reinforcing yarn separate from the outer layer forming yarn bobbin and the outer layer forming yarn bobbin is alternately delivered.

[0004]

SUMMARY OF THE INVENTION The above-mentioned composition apparatus has two components.
The necessity of mounting one bobbin necessitates a large bobbin carrier and a special mechanism for transferring the reinforcing thread bobbin.
In addition, since the braids formed by the above-described composition device are integrated with each other by reinforcing yarns alternately transferred between the inner and outer layers, only the yarns constituting the layers, the yarns constituting the layers, and the reinforcing yarns Are mixed together, and the composition density becomes uneven.

An object of the present invention is to provide a composition device having a simple structure capable of forming a multi-layer braid having a uniform composition density.

[0006]

In order to achieve the above object, in the composition device for a multi-layer braid of the present invention, a plurality of drive gear groups are arranged concentrically, and each adjacent drive gear group contacts at several places. Drive gear group on both sides of one drive gear group
Are connected to each other in the circumferential direction.
One of a plurality of track configured but is obtained by a track constituted by all of the drive gear.

[0007]

In the multi-layer braid composition device configured as described above, a plurality of bobbin / carrier groups travel on each of a plurality of annular orbits or a complicated orbit around each drive gear group to form several layers. The tubular braid is formed concentrically, and each layer is connected to each other at a specific number of places to form one multilayer structural braid.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The composition device used for the composition of the multi-layered braid of the present invention is basically the same as a normal flat braid machine or a round braid machine.
The composition is performed by a plurality of bobbin carriers running counterclockwise or clockwise. The fiber bundle fed out from each bobbin mounted on each bobbin carrier is guided to a voice located above the center of the track to form a braid. The bobbin carrier is fed while rotating by a drive gear located below the disk.

An embodiment of the composition device for a multi-layer braid of the present invention will be described with reference to FIGS.

In this composition apparatus, as shown in the drive gear arrangement diagram of FIG. 1, 32 drive gear groups 1, 24 drive gear groups 2 and 16 drive gear groups 3 are concentrically arranged respectively. The driving gear group 1 and the driving gear group 2 are connected to each other at four points A to D, and the driving gear group 2 and the driving gear group 3 are connected to each other at four points E to H. , Orbits as shown in FIG. The bobbin carrier can move through this connection to the trajectory of the next group of drive gears. In addition, the number of drive gear groups may be two or four or more.

The trajectory shown in FIG. 2 is different from the perspective shown in FIG.
As shown in the figure, three annular dedicated orbits 4 to 6 indicated by dotted lines
It can be seen that the complex dedicated trajectory 7 returns to the original state in the third round around each drive gear group indicated by the solid line.

A plurality of bobbin carriers are arranged on each of the dedicated tracks 4 to 7. Each bobbin carrier group circulates on a dedicated track to which the bobbin carriers belong by rotation of a driving gear, and never moves to another dedicated track. It does not move to orbit.

The braid manufactured by such a composition device having four dedicated tracks is a three-layer tubular braid. By the way, in this composition device, the adjacent drive gear groups are directly contacted and connected without intervening other track connecting means such as gears between the adjacent drive gear groups. The number of gears is commensurate with the distance from the center. In addition, since the reinforcing yarn does not partially enter as in the conventional device, the composition density of each layer of the braid produced by this composition device is uniform as a whole.

The composition device having such a configuration does not require the delivery of the reinforcing yarn bobbin unlike the conventional device, and therefore does not require a large bobbin carrier. Further, no special mechanism for transferring the reinforcing yarn bobbin is required. Therefore, the entire apparatus is compact, and the number of drive gears constituting the track can be increased by that much compared to the conventional apparatus. Therefore, a multi-layer braid having a large number of yarns can be obtained.

The multi-layer braid to be manufactured has very high strength because its layers are closely connected to each other and the composition densities are almost equal. Therefore, it is particularly suitable when glass fiber, carbon fiber, aramid fiber or the like is used as a core material for fiber reinforced plastic.

[0016]

[Effects of the Invention] The present invention is configured as described above, and has the following effects.

That is, unlike the conventional apparatus, a large bobbin carrier is not required, and a special bobbin delivery mechanism is not required. Therefore, the number of drive gears constituting the track can be increased, and the multilayer structure having a large number of yarns can be provided. A braid can be easily obtained. Further, connected in contact with the adjacent driving gear group directly, can be made commensurate with the placement distance from the center of the number of gears each drive gear group, further, the adjacent driven gear
Coupling position a group are offset in the circumferential direction, the reinforcing threads as in the conventional ones nor partially enter the circumferential direction
Uniform and high strength in the thickness direction, uniform composition density ,
To obtain a multi-layer braid in which each layer is tightly connected to each other
it can.

[Brief description of the drawings]

FIG. 1 is a drive gear layout of the composition device of the present invention.

FIG. 2 is a track diagram of the composition device of the present invention.

FIG. 3 is a locus diagram of a bobbin carrier in the composition device of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 drive gear group 2 drive gear group 3 drive gear group 4 annular dedicated track 5 annular dedicated track 6 annular dedicated track 7 complicated dedicated track A track connecting section B track connecting section C track connecting section D track connecting section E track connecting section F Track connection section G Track connection section H Track connection section

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-259147 (JP, A) JP-B-57-43659 (JP, B1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of drive gear group is arranged concentrically, and contact each adjacent drive gear group to each other at several places, first drive formic
The connection position with the drive gear group on both sides of the gear group is
Are offset in a direction, thus the composition device with a multilayer structure braid has a track constituted by one of all the driving gear of the plurality of track constructed.