Improved rapier loom weft connecting rapier structure
By setting a spacer groove in the weft insertion rapier structure of the rapier loom, and designing rattan and yarn clamping components in the groove respectively, the problem that the traditional weft insertion rapier head cannot simultaneously accommodate yarn and rattan is solved, achieving stable clamping of yarn and rattan and improving practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU DONGHAI PLASTIC PRODS MFG
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional weft insertion heads cannot simultaneously adapt to the insertion of weft threads into both yarn and rattan, affecting their practicality.
An improved weft insertion rapier structure was designed, which is divided into a first groove and a second groove by setting a partition bar inside the housing. These grooves are used for the rattan clamping assembly and the yarn clamping assembly, respectively. The rattan clamping assembly includes a clamping block and a torsion spring, and the yarn clamping assembly includes a positioning post and a clamping rod, so as to achieve stable clamping of the yarn and rattan.
The practicality of the weft insertion tip has been improved, enabling it to adapt to both yarn and rattan weft insertion, thus ensuring the stability of both yarn and rattan.
Smart Images
Figure CN224243364U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of textile technology and relates to an improved weft insertion rapier structure for rapier looms. Background Technology
[0002] Rapier looms are widely used in shuttleless looms. In addition to the high speed, high performance and high efficiency of shuttleless looms, their active weft insertion method has strong adaptability to various yarns. The weft insertion rapier is an important component of the rapier loom, and the weft insertion of the yarn is achieved through the weft insertion of the yarn.
[0003] Traditional weft insertion rapiers can only insert weft into the yarn during use. They cannot achieve the same effect when weaving rattan, requiring the replacement with a special rattan weft insertion rapier, which affects the practicality of the weft insertion rapier. To address this issue, we designed an improved weft insertion rapier structure for rapier looms. Summary of the Invention
[0004] The purpose of this invention is to provide an improved weft insertion rapier structure for rapier looms to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solution: an improved rapier loom weft insertion rapier structure, including a housing, an installation block fixedly installed at one end of the housing, a hook fixedly provided at the other end of the housing, a thread clamping rod fitted and connected at the hook, a partition strip fixedly provided in the middle of the housing, the housing being divided into a first groove and a second groove by the partition strip, a rattan clamping assembly provided inside the first groove, and a yarn clamping assembly provided inside the second groove.
[0006] In the above-mentioned improved rapier loom weft insertion rapier structure, the rattan clamping assembly includes a clamping block. The inner wall of the first groove has two shaft holes, and a rotating shaft is rotatably connected between the two shaft holes. A torsion spring is sleeved and connected at the assembly position of the rotating shaft and the shaft hole. One end of the torsion spring is fixedly connected to the inner wall of the shaft hole, and the other end of the torsion spring is fixedly connected to the rotating shaft. A clamping block is fixedly provided in the middle of the rotating shaft, and multiple fixing strips are fixedly provided at equal intervals at the bottom end of the clamping block. In the above-mentioned CNC indexing head, the middle tooth width of the worm gear teeth on the outer cylindrical surface of the worm gear is greater than the outer tooth width of the worm gear teeth.
[0007] In the above-mentioned improved rapier loom weft insertion rapier structure, a movable seat is movably provided at the bottom of the first groove, and an arc-shaped pressure strip is fixedly provided at the top of the movable seat, the arc-shaped pressure strip abutting against the top of the clamping block.
[0008] In the above-mentioned improved rapier loom weft insertion rapier structure, the bottom of the first groove is provided with a through groove, and a plurality of through holes are provided at equal intervals on one side of the inner wall of the through groove. Positioning pins are inserted and connected to both sides of the bottom of the movable seat, and the positioning pins are inserted and connected to the corresponding through holes.
[0009] In the above-mentioned improved rapier loom weft insertion rapier structure, the yarn clamping assembly includes a positioning post and a clamping rod. The positioning post is fixedly provided at the bottom of the second groove. A fixing ring is nested on the surface of the positioning post. The side of the fixing ring is fixedly connected to the end of the clamping rod through a triangular connector.
[0010] In the above-mentioned improved rapier loom weft insertion rapier structure, a fixing block is fixedly provided on one side of the bottom of the second groove, and a tension spring is fixedly provided on the side of the fixing block. One end of the tension spring is fixedly connected to one end of the triangular connector.
[0011] In the above-mentioned improved rapier loom weft insertion rapier structure, a limiting block is provided at the top of the second groove, and the limiting block is aligned with the triangular connector.
[0012] Compared with the prior art, the advantages of the improved weft insertion rapier structure of this utility model are as follows: the shell is divided into a first groove and a second groove by a spacer, and a rattan clamping component is set in the first groove and a yarn clamping component is set in the second groove, so that the weft insertion rapier head can adapt to both the weft insertion of yarn and the weft insertion of rattan, which effectively improves the practicality of the weft insertion rapier head. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the improved weft insertion rapier structure of the present invention.
[0014] Figure 2 This is a schematic diagram of the rattan clamping component structure of the improved rapier loom weft insertion rapier structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the yarn clamping assembly structure of the improved rapier loom weft insertion rapier structure of this utility model.
[0016] Figure 4 This utility model relates to an improved weft insertion rapier structure for rapier looms. Figure 1 Enlarged view of a portion of point A in the middle.
[0017] In the diagram, 1. Housing; 2. Mounting block; 3. Spacer; 4. First groove; 5. Second groove; 6. Hook; 7. Clamping rod; 8. Through groove; 9. Movable seat; 10. Through hole; 11. Positioning pin; 12. Arc-shaped pressure strip; 13. Rotating shaft; 14. Clamping block; 15. Fixing strip; 16. Torsion spring; 17. Fixing ring; 18. Fixing block; 19. Tension spring; 20. Positioning post; 21. Triangular connector. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] like Figure 1-4 As shown, the improved rapier loom weft insertion rapier structure of this utility model includes a housing 1, an mounting block 2 fixedly installed at one end of the housing 1, a hook head 6 fixedly installed at the other end of the housing 1, a thread clamping rod 7 attached to the hook head 6, a partition strip 3 fixedly installed in the middle of the housing 1, and the housing 1 is divided into a first groove 4 and a second groove 5 by the partition strip 3. A rattan clamping component is provided inside the first groove 4, and a yarn clamping component is provided inside the second groove 5.
[0020] Specifically, the interior of the housing 1 is divided into a first groove 4 and a second groove 5 by a partition strip 3. A rattan clamping component is set inside the first groove 4, and a yarn clamping component is set inside the second groove 5. This allows the weft insertion head to adapt to both yarn weft insertion and rattan weft insertion, effectively improving the practicality of the weft insertion head.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the improved rapier loom weft insertion rapier structure of this utility model includes a rattan clamping assembly comprising a clamping block 14. The inner wall of the first groove 4 has two shaft holes, and a rotating shaft 13 is rotatably connected between the two shaft holes. A torsion spring 16 is sleeved and connected at the assembly position of the rotating shaft 13 and the shaft hole. One end of the torsion spring 16 is fixedly connected to the inner wall of the shaft hole, and the other end of the torsion spring 16 is fixedly connected to the rotating shaft 13. The clamping block 14 is fixedly provided in the middle of the rotating shaft 13, and multiple fixing strips 15 are fixedly provided at equal intervals at the bottom end of the clamping block 14.
[0022] Specifically, the rattan clamping component can hold and fix the rattan, ensuring its stability during the weft insertion process.
[0023] The bottom of the first groove 4 is movably provided with a movable seat 9, and the top of the movable seat 9 is fixedly provided with an arc-shaped pressure strip 12, which abuts against the top of the clamping block 14.
[0024] Specifically, the curved pressing strip 12 presses the clamping block 14 downward to rotate, and the clamping block 14 can hold the rattan.
[0025] The bottom of the first groove 4 is provided with a through groove 8, and a plurality of through holes 10 are provided at equal intervals on one side of the inner wall of the through groove 8. Positioning pins 11 are inserted and connected to both sides of the bottom of the movable seat 9, and the positioning pins 11 are inserted and connected to the corresponding through holes 10.
[0026] Specifically, by cooperating with the positioning pin 11 and the through hole 10, the position of the movable seat 9 in the through groove 8 can be adjusted. The position of the arc-shaped pressure strip 12 can be adjusted by adjusting the position of the movable seat 9. The arc-shaped pressure strip 12 presses down on one side of the clamping block 14, and the clamping block 14 can clamp and fix the rattan.
[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the improved rapier loom weft insertion rapier structure of this utility model includes a yarn clamping assembly comprising a positioning post 20 and a clamping rod 7. The positioning post 20 is fixedly provided at the bottom of the second groove 5, and a fixing ring 17 is nested and connected to the surface of the positioning post 20. The side of the fixing ring 17 is fixedly connected to the end of the clamping rod 7 through a triangular connector 21.
[0028] Specifically, the yarn clamping assembly can clamp and fix the yarn to the surface of the weft insertion rapier, improving the stability of the yarn during the weft insertion process.
[0029] A fixing block 18 is fixedly provided on one side of the bottom of the second groove 5, and a tension spring 19 is fixedly provided on the side of the fixing block 18. One end of the tension spring 19 is fixedly connected to one end of the triangular connector 21.
[0030] Specifically, by setting the tension spring 19, the triangular connector 21 can be pulled to rotate in the direction of the tension spring 19. The rotation of the triangular connector 21 drives the rotation of the clamping rod 7, so that the end of the clamping rod 7 away from the triangular connector 21 is in close contact with the hook head 6.
[0031] A limiting block is provided at the top of the second groove 5, and the limiting block is aligned with the triangular connector 21.
[0032] Specifically, by setting the limiting block, the triangular connector 21 can be limited, and by limiting the triangular connector 21, it is easy to control the clamping rod 7 to be located inside the second groove 5.
[0033] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. An improved rapier loom weft insertion rapier structure, comprising a housing (1), wherein a mounting block (2) is fixedly installed at one end of the housing (1), and a hook (6) is fixedly provided at the other end of the housing (1), wherein a clamping rod (7) is fitted and connected at the hook (6), characterized in that, The housing (1) is fixedly provided with a partition strip (3) in the middle. The housing (1) is divided into a first groove (4) and a second groove (5) by the partition strip (3). A rattan clamping assembly is provided inside the first groove (4), and a yarn clamping assembly is provided inside the second groove (5).
2. The improved rapier loom weft insertion rapier structure according to claim 1, characterized in that, The rattan clamping assembly includes a clamping block (14). The inner wall of the first groove (4) has two shaft holes. A rotating shaft (13) is rotatably connected between the two shaft holes. A torsion spring (16) is sleeved and connected at the assembly position of the rotating shaft (13) and the shaft hole. One end of the torsion spring (16) is fixedly connected to the inner wall of the shaft hole, and the other end of the torsion spring (16) is fixedly connected to the rotating shaft (13). The clamping block (14) is fixedly provided in the middle of the rotating shaft (13), and multiple fixing strips (15) are fixedly provided at equal intervals at the bottom end of the clamping block (14).
3. The improved rapier loom weft insertion rapier structure according to claim 2, characterized in that, The bottom of the first groove (4) is movably provided with a movable seat (9), and the top of the movable seat (9) is fixedly provided with an arc-shaped pressure strip (12), which abuts against the top of the clamping block (14).
4. The improved rapier loom weft insertion rapier structure according to claim 3, characterized in that, The bottom of the first groove (4) is provided with a through groove (8), and a plurality of through holes (10) are provided at equal intervals on one side of the inner wall of the through groove (8). Positioning pins (11) are inserted and connected to both sides of the bottom of the movable seat (9), and the positioning pins (11) are inserted and connected to the corresponding through holes (10).
5. The improved rapier loom weft insertion rapier structure according to claim 1, characterized in that, The yarn clamping assembly includes a positioning post (20) and a clamping rod (7). The bottom of the second groove (5) is fixedly provided with the positioning post (20). A fixing ring (17) is nested on the surface of the positioning post (20). The side of the fixing ring (17) is fixedly connected to the end of the clamping rod (7) through a triangular connector (21).
6. The improved weft insertion rapier structure according to claim 1, characterized in that, A fixing block (18) is fixedly provided on one side of the bottom of the second groove (5), and a tension spring (19) is fixedly provided on the side of the fixing block (18). One end of the tension spring (19) is fixedly connected to one end of the triangular connector (21).
7. The improved rapier loom weft insertion rapier structure according to claim 1, characterized in that, A limiting block is provided at the top of the second groove (5), and the limiting block is aligned with the triangular connector (21).