JPH10204743A - Weaving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weaving machine capable of accurately positioning each of a plurality of superposed swing arms to apply a prescribed spaces between the plural swing arms. SOLUTION: This weaving machine is provided with a swing arm 64 connected to the tip end of a pulling wire 3 connected to a dobby machine and extended from a heald frame. The machine is further provided with spacing members for applying prescribed spaces between plural swing arms 64 attached to a common supporting shaft 63 parallel to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loom for raising and lowering a heald frame by a dobby machine.

[0002]

2. Description of the Related Art A dobby machine selectively raises or lowers a plurality of heald frames provided on a loom via wires. Generally, a heald frame is raised and lowered by a dobby machine so that several hundreds of warps are raised and lowered simultaneously. A plurality of heald frames are stacked, and these are alternately operated to form openings between the warp yarns.
Pass the weft through this opening using an air or water jet,
When the opening is closed and the same process is repeated again, weaving is performed, and a woven fabric having a predetermined pattern is completed. The loom is provided with a wire that moves up and down in conjunction with the dobby machine, and a heald frame is attached to the wire, and the heald frame moves up and down. One end of the wire is locked to the dobby machine, and the other end is locked to a swingable swing arm.

The number of swing arms is the same as the number of the hold frames, and a plurality of one swing arms are coaxially stacked on one heald frame. The swing arms are provided so that each swing arm is coplanar with each heald frame in order to pull the heald frame in parallel, and a predetermined interval is given to the plurality of swing arms. In a conventional loom, a convex portion is provided on the adjacent surface of each of a plurality of swing arms,
The plurality of swing arms are positioned by bringing the protrusions into contact with each other or the protrusion and the adjacent surface portion, and a predetermined interval is given to the plurality of swing arms.

[0004]

However, in the conventional loom as described above, there are variations in the thickness of the individual swing arms including the projections, and the variations are cumulative tolerance dimensions, and the plural swing arms in the loom are used. Among them, there has been a problem that the positions of some swing arms are greatly shifted. Further, when the projection of the swing arm is worn, the swing arm must be disassembled and the swing arm must be replaced, resulting in a problem of poor maintenance.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks of the prior art and to accurately position a plurality of individual swing arms to provide a predetermined interval between the plurality of swing arms. To provide a loom that can be used.

[0006]

In order to achieve the above object, the present invention relates to a loom having a swing arm connected to a tip of a pulling wire extending from a heald frame connected to a dobby machine. In addition, the plurality of swing arms arranged in parallel with each other on the common support shaft are provided with a spacing member for providing a predetermined spacing. The swing arm has a hole, and the spacing member is provided at the edge of the hole. Further, the spacing member is detachably provided on the frame of the loom.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 is a schematic front view showing the entire loom. As shown, the loom 51 has a pair of left and right loom frames 52 erected on the floor, and a heald frame 53 is arranged between the loom frames 52. The left and right vertical frames 56 of the heald frame 53 are composed of the lifting wires 3.
To move up and down together with the lifting wire 3.

A plurality of heald frames 53 are provided so as to overlap in the thickness direction of the paper.
Numerals 3 are individually attached to the elevating wires 3 so as to operate independently of elevating. Hereinafter, the configuration for one heald frame 53 will be described, but the same configuration is adopted for all heald frames 53.

The dobby machine 1 is an underlay fixed on a floor, which swings a jack lever 2 around a support shaft 4 to drive a lifting wire 3 and a heald frame 53. A pulley 62 for guiding the lifting wire 3 is provided between the dobby machine 1 and the heald frame 53. Here, the jack lever 2 is
By pulling the lifting wire 3 against the urging force of
By lowering the heald frame 53 and releasing the pulling force, the heald frame 53 is raised by the urging force of the spring 69.

A rotating shaft 63 is provided on the top of the loom frame 52.
A swing arm 64 is provided so as to be rotatable around the arm. A stopper collar 63a is attached to the rotating shaft 63, and regulates the swing arm 64 in the left-right direction in FIG. The distal end of the lifting wire 3 extending from the dobby machine 1 is locked to the inner arm 65 of the swing arm 64. One end of a spring 69 is locked to the outer arm 66 of the swing arm 64, and the other end of the spring 69 is locked to the loom frame 52.

Next, the swing arm portion of the loom will be described mainly with reference to FIGS. FIG. 1 is a front view showing a swing arm portion to which a spacing member is applied. FIG. 2 is a sectional view taken along line DD of FIG.

As described above, the swing arm 64 is
A plurality of sheets are arranged so as to be rotatable on a rotating shaft 63 provided on the upper part of the loom frame 52. On the rotating shaft 63,
A stopper collar 63a is provided, and the swing arm 64 is positioned in the axial direction. The ends of the wires 3 attached to the heald frame 53 (see FIG. 4) are connected to the inner arms 65 of the plurality of swing arms 64. Each swing frame 64
It is in a position parallel to the heald frame 53. Each inner arm 65 has a hole 65a. In the hole 65a, a spacing member 70 is provided. Spacing unit 7
0 is a fixture 72 attached to the loom frame 52.
And each inner arm 65 attached to the fixture 72.
It is composed of an interval providing member 71 for providing an interval therebetween, and a screw 73 for fixing the interval providing member 71 and the fixture 72.

As shown in FIG. 1 and FIG.
1 has a so-called comb shape in which convex portions 71a and concave portions 71b continue alternately. Inner arm 65 in each recess
Are provided so that the inner edges of the holes 65a are engaged with each other. In this manner, the plurality of inner arms 65 are attached to one spacing member 71.
Are engaged, the dimensional tolerance of the inner arm 65 does not accumulate. The space providing member 70 has a space-saving design because the space providing member 70 is provided in the hole 65a. The hole 6 provided in the outer arm 66
6b and 66c reduce the weight of the swing arm 64 and suppress the inertial force. 66a is a convex part, and the adjacent outer arm 66 contacts.

The wire 3z is connected to the outer arm 66. A connecting member 3y is attached to the wire 3z, and a spring connecting member 67 is attached to the connecting member 3y. A spring 69 that raises the heald frame is connected to the spring connecting member 67. At both ends of the spring connecting member 67, similarly to the swing arm 64, an interval providing member 80 for providing a predetermined interval to the spring connecting member 67 is provided. The member 80 is attached to the loom frame 52. As shown in FIG. 3, the spacing member 80 is a comb-like member in which convex portions 80 a and concave portions 80 b are alternately similar to the above-described spacing member 71. The spring connecting member 67 is slidably attached to the recess 80b. The spacing member 80 allows the spring connecting member 67 to move in parallel with accuracy and to provide a predetermined spacing accurately.

Further, by setting the contact area of the spacing member 71 with the swing arm 64 to be small,
The frictional resistance with each swing arm 64 can be reduced. As described above, individual swing arms 6
4 does not accumulate, and the axial position of the rotating shaft 63 of the swing arm 64 does not significantly shift. The swing arm 64 can be accurately positioned to provide a predetermined interval. In addition, the spacing member 7
Even if the one convex portion 71a is worn, it is only necessary to replace the spacing member 71, which is excellent in maintainability. for that reason,
The swing arm 64 is disassembled and the swing arm 6 is disassembled.
There is no problem that 4 must be replaced.

[0017]

As described above, according to the first aspect of the present invention,
Since the variation in the thickness of each swing arm does not accumulate, the thickness of the swing arm does not affect the positions of other swing arms. It is possible to prevent a problem that the position of some swing arms among the swing arms is largely shifted.
Therefore, it is possible to accurately determine the position of each of the plurality of stacked swing arms and provide a predetermined interval to the plurality of swing arms.

According to the second aspect of the present invention, the spacing member can be provided in the space in which the plurality of swingarms are provided, so that no space is required as the spacing member and the loom is enlarged. Can be prevented.

According to the third aspect of the present invention, even if the space providing member is worn, only the space providing member needs to be replaced, and the maintenance is excellent. Therefore, there is no problem that the swing arm must be disassembled and the swing arm must be replaced.

[Brief description of the drawings]

FIG. 1 is a front view showing a swing arm to which a spacing member of a loom of the present invention is applied.

FIG. 2 is a sectional view taken along line DD of FIG.

FIG. 3 is a plan view showing a spacing member of a spring connecting member.

FIG. 4 is a front view showing the outline of the loom of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dobby machine 3 Wire 9 Balk plate 51 Loom 53 Held frame 64 Swing arm 65 Inner arm 65a Hole 66 Outer arm 63 Rotation shaft (support shaft) 70 Spacing section 71 Spacing member 72 Fixing member 73 Screw

Claims (3)

[Claims] 1. A loom having a swing arm connected to a tip of a pulling wire connected to a dobby machine and extending from a heald frame, comprising: a plurality of looms arranged parallel to each other on a common support shaft. The weaving machine according to claim 1, wherein the swing arm is provided with a spacing member for providing a predetermined spacing. 2. The swing arm according to claim 1, wherein the swing arm has a hole, and the spacing member is provided at an edge of the hole.
Loom. 3. The loom according to claim 1, wherein the spacing member is detachably provided on a frame of the loom.