A weft insertion device for multi-color weft yarns on a textile machine

By using a worm gear transmission mechanism and a limiting slide structure, the tension adjustment of multi-color weft yarns on textile machines is simplified, solving the problem of inconvenient operation and improving production efficiency.

CN224430866UActive Publication Date: 2026-06-30TUNGGA LINENANDCOTTON CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TUNGGA LINENANDCOTTON CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The tension adjustment of multi-colored weft yarns in existing textile machines is inconvenient, especially when frequently adjusting the weft yarn tension to adapt to the characteristics of different colored weft yarns. The adjustment process is cumbersome and affects the production process.

Method used

It adopts a worm gear transmission mechanism and a limiting slide cylinder structure. By rotating the throttle, the worm and the threaded rod are driven to move the limiting slide and the support block, thereby adjusting the position of the tension adjusting roller and simplifying the operation process.

Benefits of technology

It enables convenient adjustment of weft tension, improves production efficiency, adapts to the tension requirements of weft yarns of different colors, and ensures the normal operation of the device.

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Abstract

This utility model discloses a weft insertion device for multi-color weft yarns on a textile machine, relating to the field of textile technology. It includes two support frames, with two transmission rollers rotatably connected between them. A connecting frame is fixedly connected between the two support frames. Two worm gears are provided on the top of the connecting frame, and worms are meshed with the outer sides of each worm gear. The device uses two threaded rods to connect to two limiting sliding columns, which in turn drive two support blocks to move. At this time, two sliders slide inside two fixed frames. The two support blocks drive rectangular blocks to move via telescopic rods and compression springs. Therefore, the position of the tension adjusting roller body can be adjusted using the two rectangular blocks. This structural design allows for easy adjustment of the vertical position of the two rectangular blocks simply by turning the handle, making operation convenient and enabling quick adaptation to the tension adjustment needs of different colored weft yarns, thus improving production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of textile technology, specifically a weft insertion device for multi-color weft yarns on a textile machine. Background Technology

[0002] In the textile production process, the introduction of multi-colored weft yarns is crucial for enriching the color and pattern effects of fabrics.

[0003] In the prior art, the multi-color weft yarn conduction mechanism for decorative fabrics with authorization announcement number CN218466046U includes two support frames, two conduction rollers rotatably connected between opposite sides of the two support frames, adjustment components provided on opposite sides of the two support frames, tension fine-tuning components provided at the bottom of the two adjustment components, tension adjusting rollers provided between the bottoms of the two tension fine-tuning components, and sliding components provided at the bottom of the two support frames.

[0004] In the above scheme, the position of the two rectangular blocks is adjusted by manually adjusting the two threaded adjusting blocks, thereby moving the tension adjusting roller. This structural design makes it inconvenient for personnel to operate, especially when it is necessary to frequently adjust the weft tension to adapt to the characteristics of different colored weft yarns. The adjustment process is cumbersome and affects the production process. Utility Model Content

[0005] The purpose of this utility model is to provide a weft insertion device for multi-color weft yarns in textile machines, so as to solve the problem that the existing technology proposes to adjust the position of two rectangular blocks by manually adjusting two threaded adjusting blocks, thereby moving the tension adjusting roller. This structural design makes it inconvenient for personnel to operate, especially when it is necessary to frequently adjust the weft yarn tension to adapt to the characteristics of different colored weft yarns. The adjustment process is cumbersome and affects the production process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a weft insertion device for multi-color weft yarn in a textile machine, comprising two support frames, two guide rollers rotatably connected between the two support frames, a connecting frame fixedly connected between the two support frames, two worm gears at the top of the connecting frame, worms meshing with the outer sides of the two worm gears, the two worms fixedly connected, a throttle handle installed at one end of one of the worms, a limiting slide cylinder at the bottom of the worm gear, the bottom end of the limiting slide cylinder passing through the connecting frame and fixedly connected to the connecting frame, a threaded rod fixedly connected to the bottom of the worm gear, the bottom end of the threaded rod passing through the top of the limiting slide cylinder and rotatably connected to the limiting slide cylinder, a limiting slide post slidably connected inside the limiting slide cylinder, a threaded groove at the top of the limiting slide post, a threaded rod disposed inside the threaded groove and threadedly connected to the limiting slide post, an adjusting roller structure between the two limiting slide posts, and the connecting frame providing fixed support for the two limiting slide cylinders.

[0007] Preferably, both outer ends of the two worm gears are rotatably connected to connecting blocks, and the bottom ends of the multiple connecting blocks are fixedly connected to the connecting frame. The multiple connecting blocks provide support and stability for the two worm gears.

[0008] Preferably, the adjusting roller structure includes two support blocks, which are respectively fixedly connected to the bottom ends of two limiting sliding columns. A slider is fixedly connected to one side of each of the two support blocks. A fixed frame is slidably connected to the outside of each of the two sliders. The two fixed frames are respectively fixedly connected to the bottom of the two support frames. Scale lines are respectively provided on the outside of the two fixed frames.

[0009] Preferably, the adjusting roller structure further includes two rectangular blocks, which are respectively disposed at the bottom of two support blocks, and a tension adjusting roller body is rotatably connected between the two rectangular blocks.

[0010] Preferably, the support block and the rectangular block are provided with grooves on opposite sides, and protrusions are slidably arranged inside the two grooves. The two protrusions are respectively fixed to the support block and the rectangular block by bolts.

[0011] Preferably, a telescopic rod is provided between the two protrusions, and the two ends of the telescopic rod are fixedly connected to the two protrusions respectively. A compression spring is sleeved on the outside of the telescopic rod, and the two ends of the compression spring are fixedly connected to the two protrusions respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application uses two threaded rods to connect to two limiting slide columns, which in turn drive two support blocks to move. At this time, the two sliders slide inside the two fixed frames, and the two support blocks drive the rectangular blocks to move through the telescopic rod and compression spring. Therefore, the position of the tension adjusting roller body can be adjusted by the two rectangular blocks. With this structural design, the up and down positions of the two rectangular blocks can be adjusted simply by turning the handle. The operation is convenient and can quickly adapt to the tension adjustment needs of different colored weft yarns, thus improving the production process.

[0014] 2. This application allows the protrusion to be pulled out of the groove by removing the bolts on the outside of the support block and the rectangular block, which facilitates the replacement of the telescopic rod and the compression spring and ensures the normal operation of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a weft insertion device for multi-color weft yarns in a textile machine according to the present invention;

[0016] Figure 2This is a cross-sectional view of the limiting slide cylinder and limiting slide column of a weft insertion device for multi-color weft yarns in a textile machine according to the present invention;

[0017] Figure 3 This is a schematic diagram of the fixing frame structure of a weft insertion device for multi-color weft yarns in a textile machine according to the present invention;

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the support block, rectangular block, and protrusion of a weft insertion device for multi-color weft yarns in a textile machine according to the present invention.

[0019] The following are the labels in the diagram: 1. Support frame; 2. Conducting roller; 3. Connecting frame; 4. Limiting slide cylinder; 5. Worm gear; 500. Worm; 501. Connecting block; 6. Threaded rod; 7. Limiting slide column; 8. Threaded groove; 9. Fixing frame; 10. Scale line; 11. Support block; 12. Slider; 13. Rectangular block; 14. Groove; 15. Protrusion; 16. Telescopic rod; 17. Compression spring; 18. Tension adjusting roller body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1 - Figure 4 As shown, this utility model provides a technical solution for a weft insertion device for multi-color weft yarns in a textile machine, including two support frames 1, two guide rollers 2 rotatably connected between the two support frames 1, a connecting frame 3 fixedly connected between the two support frames 1, two worm gears 5 on the top of the connecting frame 3, worms 500 meshing with the outer sides of the two worm gears 5, connecting blocks 501 rotatably connected to both ends of the outer sides of the two worms 500, and the bottom ends of the multiple connecting blocks 501 fixedly connected to the connecting frame 3, and the two worms 500 fixedly connected to each other. One of the worm gears 500 has a throttle handle installed at one end. The bottom of the worm wheel 5 is provided with a limiting slide cylinder 4. The bottom end of the limiting slide cylinder 4 passes through the connecting frame 3 and is fixedly connected to the connecting frame 3. The bottom of the worm wheel 5 is fixedly connected with a threaded rod 6. The bottom end of the threaded rod 6 passes through the top of the limiting slide cylinder 4 and is rotatably connected to the limiting slide cylinder 4. The limiting slide cylinder 4 is slidably connected with a limiting slide column 7. The top of the limiting slide column 7 is provided with a threaded groove 8. The threaded rod 6 is set inside the threaded groove 8 and is threadedly connected to the limiting slide column 7. An adjusting roller structure is provided between the two limiting slide columns 7.

[0022] The adjusting roller structure includes two support blocks 11, which are fixedly connected to the bottom ends of two limiting slide columns 7. Slider blocks 12 are fixedly connected to opposite sides of the two support blocks 11. Fixing frames 9 are slidably connected to the outer sides of the two slider blocks 12. The two fixing frames 9 are fixedly connected to the bottom of the two support frames 1. Scale lines 10 are provided on the outer sides of the two fixing frames 9. The adjusting roller structure also includes two rectangular blocks 13, which are respectively located at the bottom of the two support blocks 11. A tension adjusting roller body 18 is rotatably connected between the two rectangular blocks 13. A groove 14 is provided on opposite sides of the support blocks 11 and the rectangular blocks 13. A protrusion 15 is slidably provided inside the two grooves 14. The two protrusions 15 are fixed to the support blocks 11 and the rectangular blocks 13 respectively by bolts. A telescopic rod 16 is provided between the two protrusions 15. The two ends of the telescopic rod 16 are fixedly connected to the two protrusions 15 respectively. A compression spring 17 is sleeved on the outer side of the telescopic rod 16. The two ends of the compression spring 17 are fixedly connected to the two protrusions 15 respectively.

[0023] Specifically, rotating the throttle causes two worm gears 500 to rotate on multiple connecting blocks 501. The two worm gears 500 mesh with two worm wheels 5, which in turn drive two threaded rods 6 to rotate inside two limiting slide cylinders 4. The two threaded rods 6 are threadedly connected to two limiting slide columns 7, which in turn drive two support blocks 11 to move. At this time, two sliders 12 slide inside two fixed frames 9, and the two support blocks 11 drive rectangular blocks 13 to move via telescopic rods 16 and compression springs 17. Therefore, the position of the tension adjusting roller body 18 can be adjusted through the two rectangular blocks 13. With this structural design, the up and down positions of the two rectangular blocks 13 can be adjusted simply by rotating the throttle, making it convenient for personnel to operate and allowing for quick adaptation to the tension adjustment needs of different colored weft yarns, thus improving the production process.

[0024] When the compression spring 17 is damaged or its elasticity is weakened, the stability of the tension adjustment may be affected. By removing the bolts on the outside of the support block 11 and the rectangular block 13, the protrusion 15 can be pulled out of the groove 14 to facilitate the replacement of the telescopic rod 16 and the compression spring 17, thus ensuring the normal operation of the device.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A weft insertion device for multi-color weft yarns on a textile machine, characterized in that: It includes two support frames (1), two guide rollers (2) are rotatably connected between the two support frames (1), and a connecting frame (3) is fixedly connected between the two support frames (1). The top of the connecting frame (3) is provided with two worm gears (5), and worms (500) are meshed and connected to the outer sides of the two worm gears (5). The two worms (500) are fixedly connected to each other. One end of one of the worms (500) is equipped with a throttle. The bottom of the worm gear (5) is provided with a limiting slide (4). The bottom end of the limiting slide (4) is... A threaded rod (6) is fixedly connected to the bottom of the worm gear (5) and the bottom end of the threaded rod (6) passes through the top of the limiting slide cylinder (4) and is rotatably connected to the limiting slide cylinder (4). A limiting slide column (7) is slidably connected inside the limiting slide cylinder (4). A threaded groove (8) is opened on the top of the limiting slide column (7). The threaded rod (6) is set inside the threaded groove (8) and threadedly connected to the limiting slide column (7). An adjusting roller structure is provided between the two limiting slide columns (7).

2. The weft insertion device for multi-color weft yarn on a textile machine according to claim 1, characterized in that: Both outer ends of the two worm gears (500) are rotatably connected to connecting blocks (501), and the bottom ends of the multiple connecting blocks (501) are fixedly connected to the connecting frame (3).

3. The weft insertion device for multi-color weft yarn on a textile machine according to claim 1, characterized in that: The adjusting roller structure includes two support blocks (11), which are fixedly connected to the bottom ends of two limiting slide columns (7). Each of the two support blocks (11) is fixedly connected to a slider (12) on the opposite side. Each of the two sliders (12) is slidably connected to a fixed frame (9) on the outside. Each of the two fixed frames (9) is fixedly connected to the bottom of two support frames (1). Each of the two fixed frames (9) is provided with a scale line (10) on the outside.

4. The weft insertion device for multi-color weft yarn on a textile machine according to claim 3, characterized in that: The adjusting roller structure also includes two rectangular blocks (13), which are respectively disposed at the bottom of two support blocks (11), and the tension adjusting roller body (18) is rotatably connected between the two rectangular blocks (13).

5. The weft insertion device for multi-color weft yarn on a textile machine according to claim 4, characterized in that: The support block (11) and the rectangular block (13) are provided with grooves (14) on opposite sides. Both grooves (14) are provided with protrusions (15) that slide inside them. The two protrusions (15) are fixed to the support block (11) and the rectangular block (13) respectively by bolts.

6. The weft insertion device for multi-color weft yarn on a textile machine according to claim 5, characterized in that: A telescopic rod (16) is provided between the two protrusions (15). The two ends of the telescopic rod (16) are fixedly connected to the two protrusions (15) respectively. A compression spring (17) is sleeved on the outside of the telescopic rod (16). The two ends of the compression spring (17) are fixedly connected to the two protrusions (15) respectively.