CN211947420U - Yarn double-let-off mechanism - Google Patents

Abstract

The utility model discloses a two let-off mechanisms of yarn, including frame, first unit, first carry over pinch rolls, first cylinder, first spout, first slider, first commentaries on classics roller, second cylinder, second slider, second spout, second commentaries on classics roller, let-off pinch rolls, second unit, second carry over pinch rolls, first lever, first draft roller, first connecting rod, first clamp plate, second lever, second draft roller, second connecting rod, second clamp plate and tension roller. The utility model discloses the first unit and the second unit that set up drive first carry over pinch rolls and second carry over pinch rolls respectively and rotate, can be effectual send two warps into the inside of rapier loom simultaneously to be different from traditional rapier loom intelligence and send into a warp, can't carry out the drawback that prevents through two kinds of warps when weaving; the first drafting roller and the second drafting roller are driven to move simultaneously by controlling the second pressing plate, so that the tension borne by two warps is the same, and the situation that the tension of the two warps is different to influence the later-stage placing work is prevented.

Description

Yarn double-let-off mechanism

Technical Field

The utility model relates to a textile machinery specifically is a two let-off mechanisms of yarn belongs to textile machinery equipment technical field.

Background

The rapier loom is the most widely used shuttleless loom at present, and has the characteristics of high speed, high automation degree and high-efficiency production of the shuttleless loom, and besides, the positive weft insertion mode has strong variety adaptability and can adapt to the weft insertion of various yarns. With shuttleless looms replacing shuttle looms, rapier looms will become the main production machine for woven fabrics.

The traditional rapier loom can only weave a fabric woven by one warp raw material, so that only one set of warp feeding mechanism is provided, and along with the requirement of mixed weaving of the fabric, when the woven fabric is woven by two raw materials, the weaving cannot be finished, or the finishing quality is poor; also, in the conventional art, in order to weave a fabric woven from two raw materials using a rapier loom, the two raw materials for warp are generally transported on a set of warp feeding mechanisms, which results in difficulty in controlling the tension between the two raw materials for warp. Therefore, a yarn double let-off mechanism is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a two let-off mechanisms of yarn.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a yarn double let-off mechanism, which comprises a let-off mechanism and a tension control mechanism;

the let-off mechanism comprises two frames, a first unit, a first traction roller, a first air cylinder and a first chute, the number of the frames is two, the first traction roller is rotatably connected between the two frames, one end of the first traction roller is fixedly connected to an output shaft of the first unit, the first traction roller is fixedly connected to the side wall of the frames, the top parts of the two frames are fixedly connected with the first air cylinder, the output shaft of the first air cylinder is fixedly connected with a first sliding block, the first sliding block is slidably connected to the inner wall of the first chute, the first chute is arranged at the top end of the frames, the first rotating roller is rotatably connected between the two first sliding blocks, the top parts of the two frames are fixedly connected with a second air cylinder, the output end of the second air cylinder is fixedly connected with a second sliding block, the second sliding block is slidably connected to the inner wall of the second chute, the second chute is arranged at one side of the top part of the frames, a second rotating roller is rotatably connected between the two second sliding blocks, a plurality of let-off rollers are rotatably connected to one ends of the two racks far away from the first unit, a second traction roller is rotatably connected between the bottom ends of the side walls of the two racks, one end of the second traction roller is fixedly connected to an output shaft of the second unit, and the second unit is fixedly connected to the side wall of the rack;

tension control mechanism includes first lever, first draft roller, first connecting rod, first clamp plate and second lever, two rotate between the frame and be connected with first lever, two rotate between the one end of first lever and be connected with first draft roller, two the equal rigid coupling in one end in addition of first lever has first connecting rod, two the first connecting rod end rigid coupling respectively in the both sides of first clamp plate, two rotate between the lateral wall bottom of frame and be connected with the second lever, two rotate between the one end of second lever and be connected with second draft roller, two the other one end of second lever runs through between two first connecting rods and the rigid coupling has the second connecting rod, two the second connecting rod rigid coupling is in the both sides of second clamp plate respectively.

Preferably, the let-off rolls are divided into two groups, and the let-off rolls in each group respectively correspond to the first traction roll and the second traction roll.

Preferably, the first unit and the second unit are located on the side wall of the same rack.

Preferably, two the inner wall of frame is rotating in the one end of keeping away from the let-off roll and is being connected a plurality of tension roller, a plurality of tension roller divide into two sets ofly, and every group is a plurality of tension roller corresponds first carry over pinch rolls and second carry over pinch rolls respectively.

Preferably, the first lever and the second lever are both in an L-shaped structure.

Preferably, the first pressure plate overlaps the bottom of the second lever.

The utility model discloses the beneficial effect who reaches is:

1. the utility model discloses the first unit and the second unit that set up drive first carry over pinch rolls and second carry over pinch rolls respectively and rotate, can be effectual send two warps into the inside of rapier loom simultaneously to be different from traditional rapier loom intelligence and send into a warp, can't carry out the drawback that prevents through two kinds of warps when weaving;

2. the first drafting roller and the second drafting roller are driven to move simultaneously by controlling the second pressing plate, so that the tension borne by two warps is the same, the situation that the tension of the two warps is different and the later-stage placing work is influenced is prevented, and the device is simple in structure, convenient to use and suitable for popularization and use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the rear view cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-3, a yarn double let-off mechanism comprises a let-off mechanism and a tension control mechanism;

the let-off mechanism comprises two racks 1, a first unit 2, a first traction roller 3, a first air cylinder 4 and a first sliding groove 5, wherein the number of the racks 1 is two, the first traction roller 3 is rotatably connected between the two racks 1 to facilitate traction of a first group of warps, one end of the first traction roller 3 is fixedly connected to an output shaft of the first unit 2, the first traction roller 3 is fixedly connected to the side wall of the rack 1, the first air cylinder 4 is fixedly connected to the top parts of the two racks 1, a first sliding block 6 is fixedly connected to an output shaft of the first air cylinder 4, the first sliding block 6 is slidably connected to the inner wall of the first sliding groove 5, the first sliding groove 5 is arranged at the top end of the rack 1, a first rotating roller 7 is rotatably connected between the two first sliding blocks 6 to facilitate use, a second air cylinder 8 is fixedly connected to the top parts of the two racks 1, and a second sliding block 9 is fixedly connected to the output end of the second air cylinder 8, the second sliding blocks 9 are connected to the inner wall of a second sliding chute 10 in a sliding mode, the second sliding chute 10 is formed in one side of the top of the machine frame 1, a second rotating roller 11 is connected between the two second sliding blocks 9 in a rotating mode so as to provide tension conveniently, a plurality of warp feeding rollers 12 are connected to one ends, far away from the first unit 2, of the two machine frames 1 in a rotating mode so as to provide warp feeding conveniently, a second traction roller 14 is connected between the bottom ends of the side walls of the two machine frames 1 in a rotating mode so as to facilitate traction of a second group of warps, one end of the second traction roller 14 is fixedly connected to an output shaft of the second unit 13, and the second unit 13 is fixedly connected to the side wall of the;

the tension control mechanism comprises a first lever 15, a first drawing roller 16, a first connecting rod 17, a first pressing plate 18 and a second lever 19, wherein the first lever 15 is connected between the two frames 1 in a rotating manner, the first drawing roller 16 is connected between one ends of the two first levers 15 in a rotating manner, the tension is convenient to adjust, the first connecting rod 17 is fixedly connected to the other end of each of the two first levers 15, the tail ends of the two first connecting rods 17 are fixedly connected to the two sides of the first pressing plate 18 respectively, the transmission is convenient, the second lever 19 is connected between the bottom ends of the side walls of the two frames 1 in a rotating manner, the second drawing roller 20 is connected between one ends of the two second levers 19 in a rotating manner, the other end of each of the two second levers 19 penetrates through the space between the two first connecting rods 17 and is fixedly connected with a second connecting rod 21, and the second connecting rods 21 are fixedly connected to the two sides of the second pressing, the tension is convenient to adjust.

The let-off rolls 12 are divided into two groups, and the let-off rolls 12 in each group respectively correspond to the first drawing roll 3 and the second drawing roll 14, so that let-off is facilitated; the first unit 2 and the second unit 13 are positioned on the side wall of the same frame 1, so that reasonable layout is facilitated; the inner walls of the two frames 1 are rotatably connected with a plurality of tension rollers 23 at one end far away from the let-off roll 12, the plurality of tension rollers 23 are divided into two groups, and the plurality of tension rollers 23 in each group respectively correspond to the first traction roll 3 and the second traction roll 14, so that two groups of warps can be conveniently introduced; the first lever 15 and the second lever 19 are both of an L-shaped structure, so that the use is convenient; the first pressure plate 18 is overlapped at the bottom of the second lever 19 for facilitating the transmission.

When the utility model is used, a first group of warps sequentially pass through a group of tension rollers 23 on the upper part, a first drafting roller 16, a first traction roller 3, a second rotary roller 11 and a group of let-off rollers 12 on the upper part and enter the inside of the rapier loom, a second group of warps sequentially pass through a group of tension rollers 23 on the lower part, a second traction roller 20, a second traction roller 14 and a group of let-off rollers 12 on the lower part and enter the rapier loom, two groups of warps enter the rapier loom through the let-off mechanisms respectively, so that when weaving fabrics woven by two raw materials, the two raw materials do not need to enter the rapier loom through the same let-off mechanism, the positions of the first drafting roller 16 and the second drafting roller 20 can be synchronously adjusted by adjusting a second pressing plate 22, the problem that the tension of the two groups of warps can not be controlled by the same set is prevented, a second cylinder 8 drives the second rotary roller 11, thereby controlling the tension of the upper yarn, and the device is particularly suitable for mixed weaving of glass fiber and carbon fiber and is also suitable for other fabrics adopting double-medium materials.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A yarn double let-off mechanism is characterized in that: comprises a let-off mechanism and a tension control mechanism;

the let-off mechanism comprises a rack (1), two first units (2), two first traction rollers (3), a first air cylinder (4) and a first sliding groove (5), wherein the number of the rack (1) is two, the first traction rollers (3) are rotatably connected between the two racks (1), one end of each first traction roller (3) is fixedly connected with an output shaft of the first unit (2), the first traction rollers (3) are fixedly connected with the side wall of the rack (1), the top parts of the two racks (1) are fixedly connected with the first air cylinder (4), the output shafts of the first air cylinders (4) are fixedly connected with first sliding blocks (6), the first sliding blocks (6) are slidably connected with the inner wall of the first sliding groove (5), the first sliding groove (5) is arranged at the top end of the rack (1), and a first rotating roller (7) is rotatably connected between the two first sliding blocks (6), the two frames (1) are fixedly connected with a second cylinder (8) at the top, the output end of the second cylinder (8) is fixedly connected with a second sliding block (9), the second sliding block (9) is connected to the inner wall of a second sliding chute (10) in a sliding manner, the second sliding chute (10) is arranged on one side of the top of the frame (1), a second rotating roller (11) is rotatably connected between the two second sliding blocks (9), one ends of the two frames (1) far away from the first unit (2) are rotatably connected with a plurality of let-off rollers (12), a second traction roller (14) is rotatably connected between the bottom ends of the side walls of the two frames (1), one end of the second traction roller (14) is fixedly connected to the output shaft of the second unit (13), and the second unit (13) is fixedly connected to the side wall of the frame (1);

the tension control mechanism comprises first levers (15), first drafting rollers (16), first connecting rods (17), first pressing plates (18) and second levers (19), wherein the first levers (15) are connected between the frames (1) in a rotating mode, the first drafting rollers (16) are connected between one ends of the first levers (15) in a rotating mode, the first connecting rods (17) are fixedly connected to the other ends of the first levers (15), the tail ends of the first connecting rods (17) are fixedly connected to the two sides of the first pressing plates (18) respectively, the second levers (19) are connected between the bottom ends of the side walls of the frames (1) in a rotating mode, the second drafting rollers (20) are connected between one ends of the second levers (19) in a rotating mode, the other ends of the second levers (19) penetrate between the two first connecting rods (17) and are fixedly connected with the second connecting rods (21), the two second connecting rods (21) are respectively and fixedly connected to two sides of the second pressing plate (22).

2. A yarn double let-off mechanism according to claim 1, wherein: the let-off rolls (12) are divided into two groups, and the let-off rolls (12) in each group respectively correspond to the first traction roll (3) and the second traction roll (14).

3. A yarn double let-off mechanism according to claim 1, wherein: the first unit (2) and the second unit (13) are positioned on the side wall of the same rack (1).

4. A yarn double let-off mechanism according to claim 1, wherein: two the inner wall of frame (1) rotates in the one end of keeping away from let-off roll (12) and connects a plurality of tension roller (23), a plurality of tension roller (23) divide into two sets ofly, and a plurality of every group tension roller (23) correspond first carry over pinch rolls (3) and second carry over pinch rolls (14) respectively.

5. A yarn double let-off mechanism according to claim 1, wherein: the first lever (15) and the second lever (19) are both L-shaped structures.

6. A yarn double let-off mechanism according to claim 1, wherein: the first pressure plate (18) is overlapped at the bottom of the second lever (19).

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