Drawing device for upper fabric warp knitting machine, upper fabric warp knitting machine and knitting method

Abstract

The application provides a pulling device for a shoe upper mesh warp knitting machine, the shoe upper mesh warp knitting machine and a weaving method, and belongs to the technical field of shoe upper mesh warp knitting machines. The pulling device for the shoe upper mesh warp knitting machine comprises a frame assembly, a first pulling assembly, a second pulling assembly and an auxiliary pulling assembly. The first pulling assembly and the second pulling assembly are respectively arranged in the interior of the frame assembly. The first pulling assembly is connected with the second pulling assembly. The auxiliary pulling assembly is connected with the frame assembly. The first pulling assembly and the second pulling assembly are used for clamping and pulling the mesh, and the auxiliary pulling assembly is used for adsorbing the mesh and performing soft pulling. The stability during pulling is improved, and the pulling tension can be conveniently adjusted, so that the pulling operation has high stability.

Description

Technical Field

[0001] This invention belongs to the technical field of warp knitting machines for shoe upper mesh fabric, specifically a pulling device for a warp knitting machine for shoe upper mesh fabric, a warp knitting machine for shoe upper mesh fabric, and a knitting method. Background Technology

[0002] Mesh fabric for shoe uppers is widely used in the production of casual shoes, athletic shoes, and other footwear products. With the booming development of the shoe industry, the demand for mesh fabric for shoe uppers is increasing year by year. Warp knitting machines are currently the main equipment for manufacturing mesh fabric for shoe uppers. The main working principle of a warp knitting machine is to use one or more sets of parallel yarns fed into all the working needles of the machine in the warp direction to simultaneously form loops and create a warp-knitted fabric. During the operation of a warp knitting machine, the woven fabric must quickly leave the looping area to ensure the efficient and smooth operation of the machine. The function of the warp knitting machine's pulling device is to pull the formed mesh fabric out of the looping area and transfer it to the take-up mechanism. The take-up mechanism winds the pulled-out mesh fabric into a roll using a certain tension.

[0003] When warp knitting machines manufacture shoe upper mesh fabrics of different specifications, different tensions are usually required. However, existing tensioning devices still have the drawbacks of being inconvenient to adjust tension and having poor stability. Summary of the Invention

[0004] Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a pulling device for a shoe upper mesh warp knitting machine, a shoe upper mesh warp knitting machine and a weaving method to solve the problems mentioned in the background technology.

[0005] Technical solution: The present invention provides a pulling device for a shoe upper mesh warp knitting machine, including a frame assembly, a first pulling assembly, a second pulling assembly, and an auxiliary pulling assembly; the first pulling assembly and the second pulling assembly are respectively installed inside the frame assembly; the first pulling assembly is connected to the second pulling assembly; the auxiliary pulling assembly is connected to the frame assembly.

[0006] Furthermore, the frame assembly includes a mounting frame, with pull-out ears on both sides of one end of the mounting frame, and the auxiliary traction assembly is rotatably mounted between the pull-out ears; an arc-shaped baffle is installed between the two pull-out ears; the inner side of the baffle is in contact with one side of the auxiliary traction assembly.

[0007] Furthermore, a first adjustment notch is provided on the upper sides of both sides of the mounting frame, and a first threaded pipe is installed at the upper end of the first adjustment notch. The upper ends of the first pulling component and the second pulling component are both threadedly connected to the first threaded pipe. A second adjustment notch is provided on both sides of the mounting frame, and a second threaded pipe is installed on one side of the second adjustment notch. One end of the first pulling component and the second pulling component are respectively threadedly connected to the second threaded pipe.

[0008] Furthermore, a first chain is rotatably connected between the power output ends of the first traction assembly and the second traction assembly; both the first traction assembly and the second traction assembly include an inlet roller, a holding roller, and an outlet roller. A connecting sprocket is fixedly installed at one end of the inlet roller, and the transmission connection between the first traction assembly and the second traction assembly is realized through the linkage connection between the connecting sprocket and the first chain. A drive sprocket is fixedly installed at the other end of the inlet roller on the first traction assembly.

[0009] Furthermore, a first guide block is rotatably mounted on both ends of the pressure roller. The first guide block is slidably engaged inside the first adjustment notch. A first planar bearing is fixedly mounted on the upper end of the first guide block. A first adjusting screw is fixedly mounted on the upper end of the first planar bearing. The first adjusting screw is threadedly connected inside the first threaded tube.

[0010] Furthermore, a second guide block is rotatably mounted on both ends of the lead-out roller. The second guide block is slidably engaged inside the second adjustment notch. A second plane bearing is fixedly mounted on one side of the second guide block. A second adjusting screw is fixedly mounted on one end of the second plane bearing. The second adjusting screw is threadedly connected to the second threaded pipe.

[0011] Furthermore, the inlet roller is fixedly mounted with a first linkage sprocket on one side of the drive sprocket, the pressure roller is fixedly mounted with a third linkage sprocket on one side of the drive sprocket, the outlet roller is fixedly mounted with a second linkage sprocket on one side of the drive sprocket, a second chain is sleeved between the first linkage sprocket and the second linkage sprocket, and the lower end of the third linkage sprocket meshes with the outside of the chain link of the second chain.

[0012] Furthermore, the auxiliary pulling assembly includes a pull-out roller with suction holes evenly arranged in a circumferential array on the pull-out roller. The inner side of the baffle plate is in contact with one side of the pull-out roller. The pull-out roller has a hollow structure, and the suction holes are connected to the interior of the pull-out roller. A rotating joint is fixedly installed at one end of the pull-out roller, and a connecting pipe is fixedly installed at the air outlet end of the rotating joint. An air pump is fixedly installed at the other end of the connecting pipe and is fixedly installed on the mounting frame. A servo motor is fixedly installed on the other side of the pull-out roller and is fixedly installed on one side of the pull-out ear. The output end of the servo motor is fixedly connected to the pull-out roller.

[0013] The present invention also provides a shoe upper mesh warp knitting machine, which includes the above-mentioned shoe upper mesh warp knitting machine pulling device.

[0014] The present invention also provides a method for weaving a shoe upper mesh fabric using the above-mentioned shoe upper mesh fabric warp knitting machine, comprising the following steps:

[0015] S1: Use a warp knitting machine to weave the yarn into a greige fabric;

[0016] S2: Using the Jacquard comb of the warp knitting machine to create perforations or jacquard patterns on the greige fabric to form a shoe upper mesh fabric;

[0017] S3: Adjust the first traction component and the second traction component respectively;

[0018] S4: The fabricated shoe upper mesh is stretched by the first stretching component, the second stretching component, and the auxiliary stretching component;

[0019] S5: The auxiliary pulling component rotates to extend the mesh into the outer winding component, so that it is wound into a roll and ready for cutting.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention uses a first pulling component and a second pulling component to clamp and pull the mesh fabric, and uses an auxiliary pulling component to adsorb the mesh fabric for soft pulling, thereby improving the stability during pulling and making it easier to adjust the pulling tension, so that the pulling operation has strong stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention in use;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a side sectional view of the present invention in use;

[0025] Figure 4 This is a schematic diagram of the frame assembly in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first traction component in this invention;

[0027] Figure 6 This is a schematic diagram of the structure of the second traction component in this invention;

[0028] Figure 7 This is a schematic diagram of the first traction component from another angle in this invention;

[0029] Figure 8 This is a schematic diagram of the auxiliary traction component in this invention.

[0030] In the diagram: 1. Frame assembly; 101. Mounting bracket; 102. Pull-out ear; 103. First adjustment notch; 104. First threaded tube; 105. Second adjustment notch; 106. Second threaded tube; 107. Baffle plate; 2. Mesh fabric; 3. First traction assembly; 4. Second traction assembly; 5. First chain; 6. Auxiliary traction assembly; 601. Pull-out roller; 602. Adsorption hole; 603. Rotary joint; 604. Connecting pipe; 605. Air pump; 606. Servo motor; 7. Inlet roller; 8. Holding roller; 9. Outlet roller; 10. Connecting sprocket; 11. Drive sprocket; 12. First guide block; 13. First plane bearing; 14. First adjusting screw; 15. Second guide block; 16. Second plane bearing; 17. Second adjusting screw; 18. First linkage sprocket; 19. Third linkage sprocket; 20. Second linkage sprocket; 21. Second chain. Detailed Implementation

[0031] The present invention will be further described below with reference to specific embodiments, but the embodiments do not limit the present invention in any way;

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-8 As shown, the present invention provides a pulling device for a warp knitting machine for shoe upper mesh fabric, including a frame assembly 1. A first pulling assembly 3 and a second pulling assembly 4 are rotatably installed at both ends of the frame assembly 1. A first chain 5 is rotatably connected between the power output ends of the first pulling assembly 3 and the second pulling assembly 4. The frame assembly 1 includes a mounting frame 101. A pull-out ear 102 is fixedly installed on the upper end of the mounting frame 101 located on one side of the second pulling assembly 4. An auxiliary pulling assembly 6 is rotatably installed between the pull-out ears 102. The auxiliary pulling assembly 6 includes a pull-out roller 601. Adsorption holes 602 are uniformly arranged in a circumferential array on the pull-out roller 601.

[0034] The mesh fabric 2 passes sequentially through the first pulling assembly 3, the second pulling assembly 4, and the auxiliary pulling assembly 6. During use, an external drive device drives the first pulling assembly 3, which, via the first chain 5, links the first pulling assembly 3 and the second pulling assembly 4. This causes the pull-out roller 601 to draw air outwards, allowing external gas to enter the interior of the pull-out roller 601 through the adsorption holes 602. The mesh fabric 2 then passes sequentially through the first pulling assembly 3, the second pulling assembly 4, and the auxiliary pulling assembly 6. During pulling, the first pulling assembly 3 and the auxiliary pulling assembly 6 are engaged... Component 4 is adjusted to adjust the clamping force of the first pulling component 3 and the second pulling component 4 on the mesh fabric 2, thereby facilitating the adjustment of the tension during pulling. During the pulling process, the pull-out roller 601 rotates, and the mesh fabric 2 extends into the outer winding component through the pull-out roller 601. During pulling, the mesh fabric 2 is adsorbed onto the adsorption hole 602. The pull-out roller 601 achieves a soft pulling effect on the mesh fabric 2, which helps to relieve the tension on the mesh fabric 2 and is used for auxiliary pulling. It has strong stability and is easy to use during pulling.

[0035] The mounting bracket 101 has a first adjustment notch 103 on the upper part of both sides. A first threaded tube 104 is fixedly installed at the upper end of the first adjustment notch 103. The upper ends of the first pulling component 3 and the second pulling component 4 are connected to the first threaded tube 104. By adjusting the first threaded tube 104, the first pulling component 3 and the second pulling component 4 can slide up and down inside the first adjustment notch 103, and the first pulling component 3 and the second pulling component 4 can be adjusted up and down for easy use.

[0036] The mounting bracket 101 has second adjustment notches 105 on both sides. A second threaded tube 106 is fixedly installed on one side of the second adjustment notch 105. One end of the first pulling component 3 and the second pulling component 4 are connected to the second threaded tube 106. By adjusting the second threaded tube 106, the first pulling component 3 and the second pulling component 4 can move laterally inside the second adjustment notch 105, which facilitates the left and right adjustment of the first pulling component 3 and the second pulling component 4 and makes them convenient to use.

[0037] An arc-shaped baffle plate 107 is fixedly installed between the two pull-out ears 102. The inner side of the baffle plate 107 is in contact with the pull-out roller 601. The arc-shaped baffle plate 107 can block the pull-out roller 601, preventing external gas from entering the interior of the pull-out roller 601 through the baffle plate 107, thereby improving the adsorption force between the pull-out roller 601 and the mesh fabric 2.

[0038] Both the first traction assembly 3 and the second traction assembly 4 include an inlet roller 7, a holding roller 8, and an outlet roller 9. A connecting sprocket 10 is fixedly installed at one end of the inlet roller 7. The transmission connection between the first traction assembly 3 and the second traction assembly 4 is realized through the linkage connection between the connecting sprocket 10 and the first chain 5. A drive sprocket 11 is fixedly installed at the other end of the inlet roller 7 on the first traction assembly 3. An external drive device drives the first traction assembly 3 through the drive sprocket 11, causing the inlet roller 7 to rotate. The second traction assembly 4 rotates synchronously through the first chain 5.

[0039] Both ends of the holding roller 8 are rotatably equipped with first guide blocks 12, which are slidably engaged inside the first adjustment notch 103. A first planar bearing 13 is fixedly mounted on the upper end of the first guide block 12, and a first adjusting screw 14 is fixedly mounted on the upper end of the first planar bearing 13. The first adjusting screw 14 is threadedly connected inside the first threaded tube 104. When adjusting the upper ends of the first pulling assembly 3 and the second pulling assembly 4, the first adjusting screw 14 is turned, causing it to rotate on the first threaded tube 104, thereby pushing the first guide block 12 up and down inside the first adjustment notch 103, facilitating the adjustment of the position of the holding roller 8. Both ends of the lead-out roller 9 are rotatably equipped with second guide blocks 15, which are slidably engaged inside the second adjustment notch 105. A second plane bearing 16 is fixedly installed on one side of the second guide block 15, and a second adjusting screw 17 is fixedly installed on one end of the second plane bearing 16. The second adjusting screw 17 is threadedly connected to the second threaded tube 106. During adjustment, by turning the second adjusting screw 17, the second adjusting screw 17 rotates inside the second threaded tube 106, causing the second guide block 15 to move laterally inside the second adjusting notch 105, which facilitates the adjustment of the position of the lead-out roller 9. By adjusting the first adjusting screw 14 and the second adjusting screw 17, it is convenient to adjust the position between the guide roller 7, the holding roller 8 and the lead-out roller 9. Adjusting the distance between the holding roller 8 and the guide roller 7 and the lead-out roller 9 facilitates the adjustment of the clamping force of the first pulling assembly 3 and the second pulling assembly 4 on the mesh fabric 2. This device has strong applicability.

[0040] The inlet roller 7 is fixedly mounted with a first linkage sprocket 18 on one side of the drive sprocket 11. The holding roller 8 is fixedly mounted with a third linkage sprocket 19 on one end of the drive sprocket 11. The outlet roller 9 is fixedly mounted with a second linkage sprocket 20 on one end of the drive sprocket 11. A second chain 21 is sleeved between the first linkage sprocket 18 and the second linkage sprocket 20. The lower end of the third linkage sprocket 19 meshes with the outer ring of the second chain 21. When pulling, the first linkage sprocket 18 and the second linkage sprocket 20 rotate synchronously through the second chain 21. The third linkage sprocket 19 then causes the inlet roller 7, the holding roller 8, and the outlet roller 9 to rotate synchronously. When adjusting, the second chain 21 changes shape but still meshes with the first linkage sprocket 18, the third linkage sprocket 19, and the second linkage sprocket 20, thus ensuring the linkage stability after adjustment and facilitating use.

[0041] The pull-out roller 601 has a hollow structure. The adsorption hole 602 is connected to the interior of the pull-out roller 601. A rotary joint 603 is fixedly installed at one end of the pull-out roller 601. A connecting pipe 604 is fixedly installed at the air outlet end of the rotary joint 603. An air pump 605 is fixedly installed at the other end of the connecting pipe 604. The air pump 605 is fixedly installed on the mounting bracket 101. A servo motor 606 is fixedly installed on the other side of the pull-out roller 601. The servo motor 606 is fixedly installed on one side of the pull-out ear 102. The output end of the servo motor 606 is fixedly connected to the pull-out roller 601. When outputting, the air pump 605 is turned on, so that a negative pressure is formed inside the pull-out roller 601. This allows external gas to enter the interior of the pull-out roller 601 through the adsorption hole 602, making it easier for the mesh fabric 2 to be adsorbed onto the pull-out roller 601. This achieves a soft pulling effect during pulling, making it easy to use. The rotation speed of the pull-out roller 601 can be easily controlled by the servo motor 606, making it easy to use.

[0042] This embodiment also provides a shoe upper mesh warp knitting machine, including the above-mentioned shoe upper mesh warp knitting machine traction device.

[0043] This embodiment also provides a method for weaving mesh fabric for shoe uppers, including the following steps:

[0044] Step 1: Use a three-jacca warp knitting machine with at least six comb bars for weaving; thread the yarn through each comb bar according to the process requirements; weave the fabric into a base fabric through the ground comb bar and the jacquard comb bar;

[0045] Step 2: Use Jacquard combs to create perforations or jacquard patterns on the greige fabric to form the shoe upper mesh fabric 2;

[0046] Step 3: Adjust the first adjusting screw 14 and the second adjusting screw 17 of the first pulling assembly 3 and the second pulling assembly 4 respectively to adjust the position between the inlet roller 7, the holding roller 8 and the outlet roller 9, so as to adjust the distance between the holding roller 8, the inlet roller 7 and the outlet roller 9. The external drive device drives the first pulling assembly 3 through the drive sprocket 11, causing the inlet roller 7 to rotate. Through the second chain 21, the first linkage sprocket 18 and the second linkage sprocket 20 rotate synchronously. Through the third linkage sprocket 19, the inlet roller 7, the holding roller 8 and the outlet roller 9 rotate synchronously. At the same time, the rotation of the inlet roller 7 causes the second pulling assembly 4 to rotate synchronously through the first chain 5.

[0047] Step 4: The mesh passes through the bottom of the guide roller 7 of the first traction assembly 3, enters the gap between the guide roller 7 and the holding roller 8, passes around the holding roller 8 and enters the gap between the holding roller 8 and the lead-out roller 9, then passes through the bottom of the guide roller 7 of the second traction assembly 4, enters the gap between the guide roller 7 and the holding roller 8, passes around the holding roller 8 and exits from the gap between the holding roller 8 and the lead-out roller 9.

[0048] Step 5: Using an external air extraction device, air is extracted from the pull-out roller 601, allowing external gas to enter the interior of the pull-out roller 601 through the adsorption hole 602, causing the mesh fabric 2 to be adsorbed onto the adsorption hole 602, achieving a soft pulling effect.

[0049] Step 6: The pull-out roller 601 rotates, extending the mesh fabric 2 through the pull-out roller 601 into the outer winding assembly, so that it is collected into a roll and ready for cutting.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pulling device for a shoe upper mesh warp knitting machine, characterized in that: It includes a frame assembly (1), a first traction assembly (3), a second traction assembly (4), and an auxiliary traction assembly (6); the first traction assembly (3) and the second traction assembly (4) are respectively installed inside the frame assembly (1); the first traction assembly (3) is connected to the second traction assembly (4); the auxiliary traction assembly (6) is connected to the frame assembly (1); The frame assembly (1) includes a mounting frame (101), and pull-out ears (102) are provided on both sides of one end of the mounting frame (101). The auxiliary traction assembly (6) is rotatably installed between the pull-out ears (102). An arc-shaped baffle (107) is installed between the two pull-out ears (102). The inner side of the baffle (107) is in contact with one side of the auxiliary traction assembly (6). The mounting bracket (101) has a first adjustment notch (103) on both sides above it. A first threaded tube (104) is installed on the upper end of the first adjustment notch (103). The upper ends of the first pulling component (3) and the second pulling component (4) are threaded to the first threaded tube (104). The mounting bracket (101) has a second adjustment notch (105) on both sides. A second threaded tube (106) is installed on one side of the second adjustment notch (105). One end of the first pulling component (3) and the second pulling component (4) are threaded to the second threaded tube (106). A first chain (5) is rotatably connected between the power output ends of the first traction assembly (3) and the second traction assembly (4); both the first traction assembly (3) and the second traction assembly (4) include an inlet roller (7), a holding roller (8) and an outlet roller (9). A connecting sprocket (10) is fixedly installed at one end of the inlet roller (7). The transmission connection between the first traction assembly (3) and the second traction assembly (4) is realized through the linkage connection between the connecting sprocket (10) and the first chain (5). A drive sprocket (11) is fixedly installed at the other end of the inlet roller (7) on the first traction assembly (3). The auxiliary pulling assembly (6) includes a pull-out roller (601), on which suction holes (602) are evenly arranged in a circumferential array. The inner side of the baffle plate (107) is in contact with one side of the pull-out roller (601). The pull-out roller (601) has a hollow structure, and the suction holes (602) are connected to the interior of the pull-out roller (601). A rotating joint (603) is fixedly installed at one end of the pull-out roller (601). A connecting pipe (604) is fixedly installed at the air outlet end of the roller (601), and a vacuum pump (605) is fixedly installed at the other end of the connecting pipe (604). The vacuum pump (605) is fixedly installed on the mounting bracket (101). A servo motor (606) is fixedly installed on the other side of the pull-out roller (601). The servo motor (606) is fixedly installed on one side of the pull-out ear (102), and the output end of the servo motor (606) is fixedly connected to the pull-out roller (601).

2. The pulling device for a shoe upper mesh warp knitting machine according to claim 1, characterized in that: Both ends of the pressure roller (8) are rotatably mounted with a first guide block (12). The first guide block (12) is slidably engaged inside the first adjustment notch (103). The upper end of the first guide block (12) is fixedly mounted with a first planar bearing (13). The upper end of the first planar bearing (13) is fixedly mounted with a first adjusting screw (14). The first adjusting screw (14) is threadedly connected inside the first threaded tube (104).

3. The pulling device for a shoe upper mesh warp knitting machine according to claim 1, characterized in that: The two ends of the lead-out roller (9) are rotatably mounted with second guide blocks (15). The second guide blocks (15) are slidably engaged inside the second adjustment notch (105). A second plane bearing (16) is fixedly mounted on one side of the second guide block (15). A second adjusting screw (17) is fixedly mounted on one end of the second plane bearing (16). The second adjusting screw (17) is threadedly connected to the second threaded tube (106).

4. The pulling device for a shoe upper mesh warp knitting machine according to claim 1, characterized in that: The inlet roller (7) is fixedly mounted with a first linkage sprocket (18) on one side of the drive sprocket (11), the pressure roller (8) is fixedly mounted with a third linkage sprocket (19) on one side of the drive sprocket (11), the outlet roller (9) is fixedly mounted with a second linkage sprocket (20) on one side of the drive sprocket (11), a second chain (21) is sleeved between the first linkage sprocket (18) and the second linkage sprocket (20), and the lower end of the third linkage sprocket (19) is engaged with the outside of the chain link of the second chain (21).

5. A warp knitting machine for shoe upper mesh fabric, characterized in that: The device includes the pulling device for a warp knitting machine for shoe upper mesh fabric as described in any one of claims 1-4.

6. A method for weaving a mesh fabric for shoe uppers, characterized in that: The weaving of the shoe upper mesh fabric using the warp knitting machine described in claim 5 includes the following steps: S1: Use a warp knitting machine to weave the yarn into a greige fabric; S2: Use the Jacquard comb of the warp knitting machine to create perforations or jacquard patterns on the greige fabric to form a shoe upper mesh fabric (2). S3: Adjust the first traction component (3) and the second traction component (4) respectively; S4: The fabricated shoe upper mesh (2) is pulled by the first pulling component (3), the second pulling component (4) and the auxiliary pulling component (6); S5: The auxiliary pulling component (6) rotates to extend the mesh (2) into the outer winding mechanism, so that it is wound into a roll and ready for cutting.

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