JP3033866B2 - Heddle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elongated thin plate-shaped heddle used for a loom .

[0002]

2. Description of the Related Art In a so-called triaxial loom, a warp group divided into two rows facing each other is passed through four heddle guide holes of upper, lower, left and right, and upper, left, lower, right and left heddle groups are alternately arranged. Shed forming operation for moving the heddle forward and backward, heddle traversing operation for feeding the heddle one pitch in the weft direction, heddle turning operation for turning the heddle coming to the end of the line in the opposing line,
The beating operation is performed at a predetermined timing to press the weft inserted into the shed at the time of forming the shed of the heddle, at a predetermined timing to weave the fabric.

A conventional heddle used in such a three-axis loom is disclosed in Japanese Patent Publication No. 60-54417 (shown schematically in FIG. 4).
An engaging portion 13 is formed in an elongated thin plate shape, is provided with a warp guide hole 10 at a leading end thereof, for guiding a warp, and is provided at a rear end with a heddle longitudinal moving plate 9 which can be moved forward and backward by a heddle shedding means. A shoulder 14 on the stairs is formed on one edge in the longitudinal direction at a position rearward from a substantially middle portion in the longitudinal direction, and the shoulder 14 is engaged with the engaging groove (shown in FIG. None), and engages with an engagement groove (not shown) of the heddle transverse feed plate 8 which is movable in the weft direction by the heddle shift means at the heddle retreat position B.
On one edge opposite to 4, there is a fixing plate 6 fixed to the machine base.
A sliding edge 15 sliding on the upper and lower sides and in the weft direction was formed.

[0004]

On the other hand, in the triaxial loom, the warp guide holes 1 of the upper and lower heddles 1 provided on the upper and lower surfaces of the fixing plate 6 for preventing the quality of the woven fabric from being deteriorated.
It is desirable that the distance between 0 is a predetermined interval S that is as small as possible. However, in the conventional heddle 1, the warp guide holes 1
The height of the sliding edge 15 is lower than the warp guide hole 10 when the height position of the sliding edge 15 is lower than the height of the sliding edge 15. Therefore, when the distance between the warp guide holes 10 of the upper and lower heddles is set to a predetermined distance S as small as possible, the distance T between the sliding edges 15 of the upper and lower hedles becomes smaller than the predetermined distance S, and is substantially equal to the distance T between the sliding edges 15. The plate thickness T of the same fixed plate was considerably thin. Since the fixing plate 6 can be fixed to the machine base only at the rear end portion due to the structure of the triaxial loom, as described above, the fixing plate 6 which is considerably thin and long in the machine longitudinal direction has its own weight. As a result, there is a problem that the heddle 1 cannot be smoothly slid and moved on the curved fixed plate 6, and the weaving is not performed smoothly.

[0005] As described above, the object of the present invention is to improve the heddle and set the thickness of the fixed plate sandwiched between the upper and lower heddle groups to be large, even if the distance between the warp guide holes of the upper and lower heddles is set to a predetermined distance. And to allow the head to move smoothly on the fixed plate.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a warp guide hole for guiding a warp is formed at an end of an elongated thin plate, and a rear end is engaged with a heddle longitudinal moving plate. A joint is formed, and a step-like shoulder is formed at one edge in the longitudinal direction at a position substantially behind the middle in the longitudinal direction. In the heddle of a triaxial loom having a sliding edge sliding in the weft direction, the front and rear sliding edges are substantially the same as the height position of the warp guide hole.

[0007]

The height position between the warp guide holes of the heddle and the sliding edge is substantially the same. Therefore, when the distance between the warp guide holes of the upper and lower heddles arranged above and below the fixed plate is set to a predetermined interval, The distance between the sliding edges can be the same as the predetermined distance, the plate thickness of the fixed plate, which is almost the same as the distance between the sliding edges, can be set larger than before, increasing the rigidity of the fixed plate to prevent deformation, Slides smoothly on the fixed plate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a description will be given of a triaxial loom using a heddle 1 of the present invention in the drawings. Only the weaving apparatus 2 will be described.
The rear end of the fixing plate 6 is screwed between the upper and lower support members 3 and 4 fixed to the machine base so as to be located at the center of the space 5 formed between the support members 3 and 4. . The fixing plate 6 extends long in the weft P direction (the direction perpendicular to the paper surface in FIG. 1). Since the upper and lower structures with the fixing plate 6 as their boundaries are the same except that a group of upper and lower heddles described later is arranged with a phase shifted in the weft P direction, only the lower structure will be described. A fixed guide plate 7 having a plurality of engagement grooves 7a engraved in the direction of the weft P in correspondence with the number of the group of heddles 1 is fixed to the front portion of the lower support member 4. At substantially the center of the lower support member 4, a heddle transverse feed plate 8 having a plurality of engagement grooves 8a formed in the weft P direction like the fixed guide hole plate 7 so as to be movable in the weft P direction. Fitted. The heddle transverse feed plate 8 can be moved by one pitch in the weft P direction by well-known unillustrated heddle shift means (disclosed in Japanese Patent Publication No. 60-54417). Further, in a space 5 corresponding to a rear portion of the lower support member 4, a front and rear moving plate 9 having a hook 9a for engaging with the head 1 is provided at a front end. Of heddle shedding (disclosed in Japanese Patent Publication No. 60-54417)
Thereby, it can be moved in the front-rear direction while sliding on the lower surface of the fixed plate 6.

Next, a plurality of heddles 1 of the present invention provided on the upper and lower surfaces of the fixing plate 6 will be described in detail. In order to increase the density of the triaxial woven fabric to be woven, the hedle 1 needs to be closely spaced between the hedles 1 disposed on the fixing plate 6, and is formed in an elongated thin plate shape. A warp guide hole 10 through which the warp Q passes is provided at the tip of the heddle 1, and as shown in FIG.
It intersects with the guide grooves 11 cut out on the left and right side surfaces, so that the warp Q can be prevented from rubbing and guided easily. A guide projection 12 is formed at the front of the head 1 so that, for example, when the upper head 1 moves forward among the upper and lower heads 1 as will be described later, the lower head 1 adjacent to the left and right of the upper head 1.
Guide protrusion 12 guides the forward movement of the upper head 1. An engagement portion 13 is formed at the rear end of the heddle 1, and the engagement portion 13 is engaged with a hook 9 a of the heddle longitudinal plate 9. A shoulder 14 extending stepwise backward from the middle in the longitudinal direction is provided at one lower edge in the longitudinal direction of the head 1.
The shoulder portion 14 engages with the engagement groove 7a of the fixed guide plate 7 at the heddle advance position A to guide the forward and backward movement of the heddle 1, and the heddle retreat position B At this point, the engagement between the fixed guide plate 7 and the engagement groove 7a is released and the fixed guide plate 7 is engaged with the engagement groove 8a of the heddle lateral feed plate 8. A sliding edge 15 which has substantially the same length as the shoulder portion 14 and slides on the fixed plate 6 in the front-rear direction and in the weft P direction is formed at one longitudinal edge of the heddle 1 opposite to the shoulder portion 14. Have been. The height position of the sliding edge 15 is substantially the same as the warp guide hole 10. Therefore, when the upper and lower heddles 1 are disposed on the upper and lower surfaces of the fixing plate 6, the distance S between the warp guide holes 10 of the upper and lower heddles 1 is set to a small predetermined distance S that does not deteriorate the quality of the woven triaxial woven fabric. And the distance T between the sliding edges 15 is substantially the same.
The plate thickness T of the fixed plate 6, which is substantially the same as that described above, can be set relatively thick.

Next, a description will be given of the horizontal feed operation and the shed forming operation of the triaxial loom constructed as described above.
First, when the heddle 1 is located at the retreat position B as shown in FIG.
Is completely disengaged from the engagement groove 7a of the fixed guide plate 7, and is engaged with the engagement groove 8a of the heddle transverse feed plate 8. Then, by the operation of the heddle shift means, the heddle lateral feed plate 8 is moved by one pitch in the direction of the weft P to feed the heddle laterally by one pitch. At the time of one pitch traverse of the heddle, the fixing plate 6 is set to be considerably thick.
The head 1 smoothly moves on the fixed plate 6 without the fixed plate 6 being curved and deformed by its own weight. Next, the shed forming operation will be described.
Is moved to the retracted position A to form the shed, and the front and rear moving plate 9 is advanced by the action of the sheddle shedding means, and the sheddle 1 is advanced to form the shed. And weft is inserted into this mouth and beaten. When the heddle 1 advances, the shoulder 14 of the heddle 1 is disengaged from the engagement groove 8a of the heddle transverse feed plate 8, and the shoulder 14 of the heddle 1 is engaged with the fixed guide plate 7. It begins to engage with the mating groove 7a and is guided so as to smoothly advance the heddle 1.
Further, when the shoulder 14 of the head 1 is disengaged from the engagement groove 8a of the lateral feed plate 8 when the head 1 is moved forward,
The heddle lateral feed plate 8 is returned by one pitch in the direction opposite to the one pitch movement in the direction of the weft P in the heddle lateral feed operation by the operation of the heddle shift means and returns to the original position.

The triaxial loom performs the shed forming operation, the heddle lateral feed operation, the unillustrated heddle rotation operation, the weft insertion and the beating operation at a predetermined timing, and weaves the weft yarn P. Three sets of warps Q interleaved with one or the other of said sets of warps, wherein both sets of warps Q extend obliquely to the length of the fabric. Weave the shaft fabric.

[0012]

As described above, in the heddle of the present invention, since the sliding edge is substantially the same as the height position of the warp guide hole, the plate thickness of the fixing plate is made relatively thicker than that using the conventional heddle. Yes, the rigidity of the fixed plate can be increased and its deformation can be prevented, the heddle can move smoothly on the fixed plate,
Weaving is performed smoothly.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a triaxial loom.

FIG. 2 is a side view of a heddle.

FIG. 3 is an enlarged view of a P view of FIG. 3;

FIG. 4 is an explanatory view of a conventional triaxial loom.

[Explanation of symbols]

1 heddle, 6 fixed plate, 9 heddle front and rear moving plate, 10 warp guide hole, 13 engaging part, 14 shoulder, 15 sliding edge

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-143772 (JP, A) JP-A-52-49364 (JP, A) Japanese Utility Model 1983-83480 (JP, U) 54417 (JP, B2) US Patent 4061773 (US, A) US Patent 3,985,160 (US, A) US Patent 3,965,939 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D03D 41/00 D03C 9/00 D03C 13/00

Claims (1)

(57) [Claims] A warp guide hole for guiding a warp is provided at a leading end, and an engaging portion for engaging with a front and rear moving plate is formed at a rear end. Weaving machine with a stepped shoulder formed substantially behind the middle of the direction and a sliding edge formed on one edge opposite to the shoulder to slide forward and backward and in the weft direction on a fixed plate fixed to the machine base. Wherein the front and rear sliding edges are substantially the same as the height position of the warp guide holes.