Tension control structure of polyester water-jet loom

Abstract

The utility model relates to the field of water jet loom discloses a kind of tension control structure of polyester water jet loom, including U-shaped frame, the top surface of mounting seat is fixed in U-shaped frame, the outer wall left side, right side of U-shaped frame is respectively provided with movable hole, two between the moving block are connected rotating roller by bearing, the inner portion of two the movable hole is respectively movably provided with connecting plate, two the first threaded hole is respectively threadedly connected with screw rod, the threaded end of two the screw rod is fixed with rotating plate.In the utility model, through the synergies of U-shaped frame, mounting seat, movable hole, moving block, rotating roller, connecting plate, reset spring, rotating groove, first threaded hole, screw rod and rotating plate, the tension of silk thread can be controlled, and the initial compression of reset spring can be adjusted, which is beneficial to adapt to different types, thickness of silk thread tension demand, to avoid insufficient compensation or overload fracture.

Description

Technical Field

[0001] This utility model relates to the technical field of water jet looms, specifically to a tension control structure for a polyester water jet loom. Background Technology

[0002] Water jet looms are shuttleless looms that use jets of water to guide the weft yarn through the shed. Their working principle utilizes air as the weft-guiding medium; the compressed air jet creates frictional traction on the weft yarn, pulling it through the shed. The jet of water achieves the purpose of weft insertion. Water jet weft insertion has a greater frictional traction force on the weft yarn than air jet weft insertion, with less diffusion, making it suitable for weft insertion of smooth-surfaced synthetic fibers, glass fibers, and other long filaments. It also increases the conductivity of synthetic fibers, effectively overcoming static electricity during weaving. Therefore, water jet looms are widely used. During the production process of water jet looms, both warp and weft yarns often have significant tension. After the fabric is woven, the raw material will shrink to some extent; therefore, a selvage tension control device is needed to adjust the tension.

[0003] The technical features of the selvage tension control device for a water-jet loom, as disclosed in Chinese Patent Publication No. CN216738740U, are as follows: It includes a frame and a rotating roller. Adjustment mechanisms are provided on both the left and right sides of the inner wall of the frame, and both adjustment mechanisms are connected to the rotating roller. Two limiting mechanisms are installed on the inner bottom wall of the frame. An installation mechanism is installed at the bottom of the frame, and the installation mechanism includes a housing. The housing is fixedly connected to the bottom of the frame. A first threaded rod is rotatably connected to the left side of the inner wall of the housing, and a second threaded rod is fixedly installed on the right side of the first threaded rod, with one end penetrating and extending to the right side of the housing.

[0004] In the above scheme, the tension of the wire is controlled by a moving block, a first reset spring, a rotating roller, and a second reset spring, which leads to the following disadvantage: the compression of the first reset spring is fixed during use and its initial compression cannot be adjusted. Utility Model Content

[0005] The purpose of this invention is to provide a tension control structure for a polyester water jet loom, in order to solve the problem that the compression of the first return spring is fixed during use and its initial compression cannot be adjusted.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a tension control structure for a polyester water jet loom, comprising a U-shaped frame, the U-shaped frame being fixed to the top surface of a mounting base, movable holes being provided on the left and right sides of the outer wall of the U-shaped frame, movable blocks being movably arranged inside the two movable holes, a rotating roller being connected between the two movable blocks via bearings, connecting plates being movably arranged inside the two movable holes, return springs being fixed between the two connecting plates and the two movable blocks, rotating grooves being provided on the bottom surfaces of the two connecting plates, first threaded holes being provided on the bottom surfaces of the two movable holes, screws being threadedly connected to the two first threaded holes, rotating plates being fixed to the threaded ends of the two screws, and the two rotating plates being rotatably arranged in the two rotating grooves.

[0007] Preferably, the top surface of the U-shaped frame has two guide holes, the top surfaces of the two movable blocks each have limit holes, guide posts are slidably inserted into the two limit holes, the reset spring is wrapped around the guide posts, the bottom ends of the two guide posts are fixedly connected to the top surfaces of the two connecting plates, and the two guide posts are slidably inserted into the two guide holes.

[0008] Preferably, the inner walls of the two movable holes are provided with sliding grooves on the front and rear sides, and the two movable blocks and the two connecting plates are respectively fixed with sliders on the front and rear sides, and the two sliders are slidably arranged in the two sliding grooves.

[0009] Preferably, a rotating block is fixed to the bottom end of each of the two screws, and a plurality of protrusions are fixed to the outer wall of each of the two rotating blocks.

[0010] Preferably, the outer wall of the rotating roller is fixed with two blocking rings.

[0011] Preferably, the inner bottom surface of the mounting base is provided with a plurality of second threaded holes, and bolts are threaded into the plurality of second threaded holes respectively.

[0012] Compared with existing technologies, the tension control structure of a polyester water jet loom that adopts the above technical solution has the following beneficial effects:

[0013] 1. In use, the tension of the wire can be controlled by the coordinated action of the U-shaped frame, mounting base, movable hole, moving block, rotating roller, connecting plate, return spring, rotating groove, first threaded hole, screw and rotating plate. At the same time, the initial compression of the return spring can be adjusted to adapt to the tension requirements of different types and thicknesses of wire, and avoid insufficient compensation or overload breakage.

[0014] Second, during use, the movement direction of the moving block, connecting plate, and return spring is limited, effectively preventing them from shifting or wobbling during movement, thus ensuring the stability and reliability of the entire tension control structure. This ensures that the moving block and connecting plate will not shift or wobble during movement, further enhancing the stability of their movement.

[0015] Thirdly, during use, it makes rotation easier and operation more convenient for workers, improving the ease of adjusting the screw and reducing operational difficulty. During the thread's movement, the retaining ring restricts the lateral position of the thread, effectively improving the stability of thread tension control. It also facilitates installation and disassembly operations for workers. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is a breakdown diagram of an embodiment.

[0018] Figure 3 This is a cross-sectional view of the connecting plate in an embodiment.

[0019] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. U-shaped frame; 2. Mounting base; 3. Movable hole; 4. Moving block; 5. Rotating roller; 6. Connecting plate; 7. Return spring; 8. Rotating groove; 9. First threaded hole; 10. Screw; 11. Rotating plate; 12. Guide hole; 13. Limiting hole; 14. Guide post; 15. Slide groove; 16. Sliding block; 17. Rotating block; 18. Protrusion; 19. Retaining ring; 20. Second threaded hole; 21. Bolt. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a tension control structure for a polyester water jet loom includes a U-shaped frame 1, which is fixed to the top surface of a mounting base 2. Movable holes 3 are respectively opened on the left and right sides of the outer wall of the U-shaped frame 1. Movable blocks 4 are movably arranged inside each of the two movable holes 3. A rotating roller 5 is connected between the two movable blocks 4 via a bearing. Connecting plates 6 are movably arranged inside each of the two movable holes 3. Return springs 7 are fixed between the two connecting plates 6 and the two movable blocks 4. Rotating grooves 8 are respectively opened on the bottom surface of the two connecting plates 6. First threaded holes 9 are respectively opened on the bottom surface of the two movable holes 3. Screws 10 are threadedly connected to the two first threaded holes 9. Rotating plates 11 are fixed to the threaded ends of the two screws 10. The two rotating plates 11 are rotatably arranged within the two rotating grooves 8.

[0023] In use, the operator first installs the U-shaped frame 1 in the designated position on the water jet loom via the mounting base 2. Then, according to actual production needs, the operator rotates the two screws 10. Due to the threaded connection between the screws 10 and the first threaded hole 9, and the rotational engagement of the rotating plate 11 within the rotating groove 8, the two connecting plates 6 can be adjusted in height. This adjustment process controls the initial compression of the two return springs 7. When the yarn starts to run, pressing down on the rotating roller 5 causes the two moving blocks 4 to move downwards within the two movable holes 3, causing the two return springs 7 to be compressed and deformed. When the yarn is stretched and deformed, the return springs 7 restore the deformation, driving the rotating roller 5 to move upwards to maintain contact with the yarn, keeping the yarn taut and effectively controlling the yarn tension, thus improving the fabric quality. Through the coordinated action of U-shaped frame 1, mounting base 2, movable hole 3, moving block 4, rotating roller 5, connecting plate 6, return spring 7, rotating groove 8, first threaded hole 9, screw 10 and rotating plate 11, the tension of the wire can be controlled, and the initial compression of the return spring 7 can be adjusted, which is conducive to adapting to the tension requirements of different types and thicknesses of wires and avoiding insufficient compensation or overload breakage.

[0024] like Figures 1-4 As shown, the top surface of the U-shaped frame 1 has two guide holes 12, and the top surfaces of the two moving blocks 4 have limit holes 13 respectively. Guide posts 14 are slidably inserted into the two limit holes 13 respectively. The reset spring 7 is wrapped around the guide posts 14. The bottom ends of the two guide posts 14 are fixedly connected to the top surfaces of the two connecting plates 6 respectively. The two guide posts 14 are slidably inserted into the two guide holes 12 respectively.

[0025] During use, when the operator moves the connecting plate 6, the guide post 14 will slide inside the guide hole 12 and the limiting hole 13. As the return spring 7 deforms due to the change in wire tension, driving the moving block 4 to move, the guide post 14 always slides along the direction of the guide hole 12 and the limiting hole 13, limiting the movement direction of the moving block 4, the connecting plate 6 and the return spring 7. This effectively prevents the moving block 4, the connecting plate 6 and the return spring 7 from shifting or shaking during movement, ensuring the stability and reliability of the entire tension control structure.

[0026] like Figures 1-4 As shown, the inner walls of the two movable holes 3 are respectively provided with sliding grooves 15 on the front and rear sides. The two movable blocks 4 and the two connecting plates 6 are respectively fixed with sliders 16 on the front and rear sides. The two sliders 16 are respectively slidably arranged in the two sliding grooves 15. The bottom ends of the two screws 10 are respectively fixed with rotating blocks 17. The outer walls of the two rotating blocks 17 are respectively fixed with several protrusions 18.

[0027] During use, when the moving block 4 and the connecting plate 6 move up and down, the slider 16 slides inside the groove 15, which limits the movement of the moving block 4 and the connecting plate 6, ensuring that they do not shift or wobble during movement, thus further enhancing the stability of their movement. When the operator needs to rotate the screw 10, they only need to hold the rotating block 17 and rotate it to drive the screw 10 to rotate. The protrusion 18 increases the friction on the surface of the rotating block 17, making it easier and more convenient for the operator to rotate the screw 10, improving the ease of adjustment and reducing the difficulty of operation.

[0028] like Figure 1 and Figure 2 As shown, two blocking rings 19 are fixed on the outer wall of the rotating roller 5, and several second threaded holes 20 are opened on the inner bottom surface of the mounting base 2. Bolts 21 are threaded into the several second threaded holes 20 respectively.

[0029] During use, the blocking ring 19 restricts the lateral position of the yarn during its movement. When the rotating roller 5 rotates, even if the yarn is subjected to a certain external force, it will be blocked by the blocking ring 19 within the effective contact range of the rotating roller 5 and will not detach from the rotating roller 5, effectively improving the stability of yarn tension control. When installing the tension control structure onto the water jet loom, the operator only needs to place the mounting base 2 in the appropriate position and then fasten the mounting base 2 onto the water jet loom by connecting the bolt 21 to the threaded hole 20, facilitating installation and disassembly operations.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tension control structure for a polyester water-jet loom, comprising a U-shaped frame (1), said U-shaped frame (1) being fixed to the top surface of a mounting base (2), characterized in that, The outer wall of the U-shaped frame (1) has movable holes (3) on the left and right sides respectively. Movable blocks (4) are movably arranged inside the two movable holes (3). A rotating roller (5) is connected between the two movable blocks (4) through a bearing. A connecting plate (6) is movably arranged inside the two movable holes (3). A return spring (7) is fixed between the two connecting plates (6) and the two movable blocks (4). A rotating groove (8) is opened on the bottom surface of the two connecting plates (6). A first threaded hole (9) is opened on the bottom surface of the two movable holes (3). A screw (10) is threadedly connected to the two first threaded holes (9). A rotating plate (11) is fixed to the threaded end of the two screws (10). The two rotating plates (11) are rotatably arranged in the two rotating grooves (8).

2. The tension control structure for a polyester water jet loom according to claim 1, characterized in that: The top surface of the U-shaped frame (1) has two guide holes (12), and the top surfaces of the two moving blocks (4) have limit holes (13). Guide posts (14) are slidably inserted into the two limit holes (13). The reset spring (7) is wrapped around the guide posts (14). The bottom ends of the two guide posts (14) are fixedly connected to the top surfaces of the two connecting plates (6). The two guide posts (14) are slidably inserted into the two guide holes (12).

3. The tension control structure for a polyester water jet loom according to claim 2, characterized in that: The inner walls of the two movable holes (3) are provided with sliding grooves (15) on the front and rear sides respectively. The two movable blocks (4) and the two connecting plates (6) are respectively fixed with sliders (16) on the front and rear sides respectively. The two sliders (16) are slidably arranged in the two sliding grooves (15).

4. The tension control structure for a polyester water jet loom according to claim 3, characterized in that: The bottom ends of the two screws (10) are respectively fixed with rotating blocks (17), and the outer walls of the two rotating blocks (17) are respectively fixed with a number of protrusions (18).

5. The tension control structure for a polyester water jet loom according to claim 1, characterized in that: Two blocking rings (19) are fixed to the outer wall of the rotating roller (5).

6. The tension control structure for a polyester water jet loom according to claim 5, characterized in that: The mounting base (2) has several second threaded holes (20) on its inner bottom surface, and bolts (21) are threaded into the several second threaded holes (20).

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