Warp knitting cloth edge cutting device capable of accurately cutting
By introducing an adjustable tension guide structure and a leveling roller into the edge-cutting device, the problems of stretching deformation and wrinkling of elastic fabrics caused by traditional edge-cutting devices are solved, achieving precise cutting of warp-knitted fabrics and improving the quality of finished products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN RUIHENG CARPET CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional edge-cutting devices are prone to overstretching and deformation or understretching and wrinkling of elastic warp-knitted fabrics, resulting in inaccurate positioning during edge cutting and affecting the quality of the finished product.
It adopts an adjustable tension guide structure and leveling roller. The tension of the fabric is adjusted by the cooperation of the tension roller and the guide roller. Combined with the telescopic rod to adjust the height of the mounting plate and the gravity of the top plate to level the wrinkles, the fabric can be accurately cut.
To prevent excessive stretching and deformation of the fabric and wrinkles, precise cutting is achieved, improving the quality of the finished product after edge trimming.
Smart Images

Figure CN224227535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of warp knitting fabric processing technology, and in particular to a warp knitting fabric edge cutting device that can be precisely cut. Background Technology
[0002] Warp-knitted fabric is a knitted fabric formed by feeding parallel yarns into a knitting machine along the warp direction using warp knitting technology. Unlike weft knitting, warp knitting uses multiple sets of yarns to form loops simultaneously, resulting in a more stable structure and stronger resistance to unraveling. After processing, warp-knitted fabric requires trimming and shaping on both sides of the fabric.
[0003] Traditional edge-cutting devices typically employ a fixed guide structure, which can easily cause excessive stretching and deformation of elastic warp-knitted fabrics, or insufficient stretching leading to wrinkles. This results in inaccurate positioning during subsequent edge-cutting, affecting the quality of the finished product.
[0004] Therefore, the traditional edge-cutting devices mentioned above typically use a fixed guide structure, which can easily cause excessive stretching and deformation of elastic warp-knitted fabrics, or insufficient stretching and wrinkles. This results in inaccurate positioning during subsequent edge cutting, affecting the quality of the finished product. A warp-knitted fabric edge-cutting device that can precisely cut warp-knitted fabrics can be designed. By setting an adjustable tension guide structure, the fabric can be tensioned to prevent excessive stretching and deformation, thereby achieving precise cutting of warp-knitted fabrics and making it more versatile. Utility Model Content
[0005] To overcome the problem that traditional edge-cutting devices typically use a fixed guide structure, which can easily cause excessive stretching and deformation of elastic warp-knitted fabrics, or insufficient stretching and wrinkles, resulting in inaccurate positioning during subsequent edge cutting and affecting the quality of the finished product.
[0006] The technical solution of this utility model is as follows: a warp-knitted fabric edge-cutting device capable of precise cutting, comprising a workbench, a finishing component, and a cutting component. The finishing component includes a mounting frame, a mounting plate, a telescopic rod, columns, a top plate, leveling rollers, a support platform, guide rollers, and tension rollers. The mounting frame is fixedly installed above the workbench, and the mounting plate is slidably connected to the inside of the mounting frame. The telescopic rod is fixedly installed inside the workbench, and the output end of the telescopic rod is fixedly connected to the lower end of the mounting plate. Four sets of columns are fixedly installed above the mounting plate, and the tension rollers are rotatably connected between two sets of columns. The support platform is fixedly installed above the mounting plate, and the top plate is located above the support platform. Multiple sets of leveling rollers are rotatably connected below the top plate and are arranged linearly. Two sets of guide rollers are rotatably connected to the inside of the mounting frame and are symmetrically arranged along the center line of the mounting frame. The cutting component is located on one side of the finishing component.
[0007] Preferably, the mounting plate is supported and installed by setting up an installation frame. A telescopic rod can be set up to drive the mounting plate to rise and slide inside the installation frame. The mounting plate supports and installs the support platform and columns. By setting up two sets of guide rollers and tension rollers, the tension of the warp-knitted fabric passing over the mounting plate can be adjusted so that it can be tightened for subsequent cutting. The height of the mounting plate can be adjusted by the telescopic rod to tighten the fabric, thereby preventing the fabric from being overstretched and deformed, and achieving precise cutting. A top plate is set up to install a flattening roller. The flattening roller, together with the support platform, can flatten the warp-knitted fabric passing over the mounting plate under the action of its own weight, smoothing out the wrinkles on the surface and preventing wrinkles from affecting the subsequent edge cutting work.
[0008] Preferably, a smooth hole is provided on the top of the column, and four sets of insert rods are fixedly installed on the bottom of the top plate. The insert rods are located inside the smooth hole and are slidably connected to the smooth hole.
[0009] Preferably, the surface of the worktable has a notch located on one side of the cutting assembly, and a guide frame is fixedly installed above the worktable with the surface of the guide frame tilted.
[0010] Preferably, a first support frame is fixedly installed above the workbench, the first support frame is located at one end of the workbench, and an unwinding roller is rotatably connected inside the first support frame.
[0011] Preferably, a second support frame is fixedly installed above the worktable, located at the other end of the worktable. A take-up roller is rotatably connected inside the second support frame, and a drive motor is fixedly installed on one side of the second support frame. The output end of the drive motor is fixedly connected to the take-up roller.
[0012] Preferably, the cutting assembly includes a gantry frame, a bidirectional lead screw, a servo motor, an internal thread block, and a guide rail. The gantry frame is fixedly installed above the worktable and is located between the mounting frame and the second support frame. The bidirectional lead screw is rotatably connected inside the gantry frame. A servo motor is fixedly installed on one side of the gantry frame, and the output end of the servo motor is fixedly connected to the bidirectional lead screw. A guide rail is fixedly installed on the lower surface inside the gantry frame. The internal thread block is slidably connected to the bottom of the guide rail and is threadedly connected to the bidirectional lead screw. Two sets of internal thread blocks are provided.
[0013] Preferably, the cutting assembly includes a pneumatic spring, a cutting blade, and a support roller. The pneumatic spring is fixedly installed below the internal threaded block, the cutting blade is fixedly installed at the output end of the lower end of the pneumatic spring, and the support roller is rotatably connected to the inside of the gantry frame, with the support roller located below the cutting blade.
[0014] The beneficial effects of this utility model are:
[0015] 1. By passing one end of the warp-knitted fabric under a set of guide rollers, then over the surface of the support platform from above two sets of tension rollers, and then under another set of guide rollers, the mounting plate is raised and lowered and slid inside the mounting frame by a telescopic rod. Through the cooperation of the two sets of guide rollers and tension rollers, the fabric is tensioned, thereby preventing the fabric from being overstretched and deformed, and achieving precise cutting.
[0016] 2. When the warp-knitted fabric passes between the pressure roller and the support platform, the weight of the top plate itself can flatten the warp-knitted fabric passing above the mounting plate, smooth out the wrinkles on the surface, and prevent the wrinkles from affecting the subsequent edge cutting work. Attached Figure Description
[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the warp-knitted fabric edge-cutting device of this utility model, which can be precisely cut.
[0018] Figure 2 The diagram shown is an exploded three-dimensional structural view of the mounting plate of the warp-knitted fabric cutting device of this utility model, which can be precisely cut.
[0019] Figure 3 The diagram shown is a three-dimensional structural diagram of the top plate of the warp-knitted fabric edge-cutting device of this utility model, which can be precisely cut.
[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the cutting component of the warp-knitted fabric edge-cutting device of this utility model, which can be precisely cut.
[0021] Explanation of reference numerals in the attached drawings: 1. Workbench; 101. Notch; 102. Guide frame; 201. First support frame; 202. Unwinding roller; 203. Second support frame; 204. Rewinding roller; 205. Drive motor; 301. Mounting frame; 302. Mounting plate; 303. Telescopic rod; 304. Column; 305. Top plate; 306. Leveling roller; 307. Support platform; 308. Guide roller; 309. Tensioning roller; 310. Smoothing hole; 311. Insert rod; 401. Gantry frame; 402. Bidirectional lead screw; 403. Servo motor; 404. Internal thread block; 405. Guide rail; 406. Gas spring; 407. Cutting blade; 408. Support roller. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment: a warp-knitted fabric edge-cutting device capable of precise cutting, comprising a workbench 1, a sorting component, and a cutting component. The sorting component includes a mounting frame 301, a mounting plate 302, a telescopic rod 303, a column 304, a top plate 305, a leveling roller 306, a support platform 307, a guide roller 308, and a tension roller 309. The mounting frame 301 is fixedly installed above the workbench 1, the mounting plate 302 is slidably connected to the inside of the mounting frame 301, and the telescopic rod 303 is fixedly installed on the workbench. Inside the mounting frame 301, the lower end of the mounting plate 302 is fixedly connected to the output end of the telescopic rod 303. Four sets of columns 304 are fixedly installed above the mounting plate 302. Tension rollers 309 are rotatably connected between two sets of columns 304. The support platform 307 is fixedly installed above the mounting plate 302. The top plate 305 is set above the support platform 307. Multiple sets of leveling rollers 306 are rotatably connected below the top plate 305. The multiple sets of leveling rollers 306 are arranged linearly. Guide rollers 308 are rotatably connected inside the mounting frame 301. The mounting frame 301 has two sets of guide rollers 308, symmetrically arranged along its centerline. The cutting component is positioned on one side of the finishing component. The mounting frame 301 supports and mounts the mounting plate 302. The telescopic rod 303 allows the mounting plate 302 to slide and rise within the mounting frame 301. The mounting plate 302 supports and mounts the support platform 307 and the column 304. The cooperation of the two sets of guide rollers 308 and tension rollers 309 allows for the cutting component to be positioned on one side of the finishing component. 2. The tension of the warp-knitted fabric above is adjusted so that it can be stretched for subsequent cutting. The height of the mounting plate 302 is adjusted by the telescopic rod 303 to tighten the fabric, thereby preventing the fabric from being overstretched and deformed, and achieving precise cutting. The pressure roller is installed by the top plate 305. The pressure roller can work with the support platform 307. Under the action of the weight of the top plate 305, the warp-knitted fabric above the mounting plate 302 can be flattened, and the wrinkles on the surface can be smoothed to prevent the wrinkles from affecting the subsequent edge cutting work.
[0024] Please see Figure 1 and Figure 2In this embodiment, a smoothing hole 310 is provided above the column 304, and four sets of insert rods 311 are fixedly installed below the top plate 305. The insert rods 311 are located inside the smoothing hole 310 and are slidably connected to the smoothing hole 310. By setting the insert rods 311 to slidely connect with the smoothing hole 310, the distance between the pressure roller and the support table 307 can be adjusted according to the thickness of the warp-knitted fabric, thus improving applicability. A notch 101 is reserved on the surface of the workbench 1. The notch 101 is located on one side of the cutting component. A guide frame 102 is fixedly installed above the workbench 1, and the surface of the guide frame 102 is inclined. By setting the guide frame 102, the edge material after cutting can be guided and discharged from the workbench 1 through the notch 101. A first support frame 201 is fixedly installed above the workbench 1. 01 is located at one end of the workbench 1. The unwinding roller 202 is rotatably connected inside the first support frame 201. The unwinding roller 202 is installed by setting the first support frame 201, and the unwinding roller 202 can be used to place and unwind the warp-knitted fabric roll to be cut. A second support frame 203 is fixedly installed above the workbench 1. The second support frame 203 is located at the other end of the workbench 1. The take-up roller 204 is rotatably connected inside the second support frame 203. A drive motor 205 is fixedly installed on one side of the second support frame 203. The output end of the drive motor 205 is fixedly connected to the take-up roller 204. The take-up roller 204 and the drive motor 205 are installed by setting the second support frame 203. The drive motor 205 can drive the take-up roller 204 to rotate, thereby taking up the warp-knitted fabric after cutting the edge.
[0025] Please see Figure 1 and Figure 4In this embodiment, the cutting assembly includes a gantry frame 401, a bidirectional lead screw 402, a servo motor 403, an internal thread block 404, and a guide rail 405. The gantry frame 401 is fixedly installed above the workbench 1, located between the mounting frame 301 and the second support frame 203. The bidirectional lead screw 402 is rotatably connected inside the gantry frame 401. The servo motor 403 is fixedly installed on one side of the gantry frame 401, and the output end of the servo motor 403 is fixedly connected to the bidirectional lead screw 402. The guide rail 405 is fixedly installed on the lower surface inside the gantry frame 401. The internal thread block 404 is slidably connected to the lower part of the guide rail 405 and threadedly connected to the bidirectional lead screw 402. Two sets of internal thread blocks 404 are provided. The cutting assembly includes a pneumatic spring 406, a cutting blade 407, and a support roller 408. The pneumatic spring 406... The cutting blade 407 is fixedly installed below the internal thread block 404 and fixedly installed at the output end of the lower end of the air spring 406. The support roller 408 is rotatably connected to the inside of the gantry frame 401 and is located below the cutting blade 407. By setting the cutting blade 407 in conjunction with the support roller 408, the warp-knitted fabric can be trimmed. The air spring 406 can provide distance compensation between the cutting blade 407 and the support roller 408 to adapt to warp-knitted fabrics of different thicknesses. The gantry frame 401 is used to install the servo motor 403, the bidirectional lead screw 402 and the internal thread block 404. The servo motor 403 can drive the bidirectional lead screw 402 to rotate, thereby driving the two sets of internal thread blocks 404 to move in opposite directions along the guide rail 405, and evenly adjusting the distance between the two sets of cutting blades 407 to adapt to warp-knitted fabrics of different widths.
[0026] During operation, the warp-knitted fabric roll that needs to be trimmed is placed around the unwinding roller 202. One end of the warp-knitted fabric is pulled through under a set of guide rollers 308, then through the surface of the support platform 307 above two sets of tension rollers 309, then through under another set of guide rollers 308, then through between the cutting blade 407 and the support roller 408, and finally connected to the surface of the take-up roller 204.
[0027] Then, the servo motor 403 drives the bidirectional lead screw 402 to rotate, thereby driving the two sets of internal thread blocks 404 to move in the opposite direction along the guide rail 405, evenly adjusting the distance between the two sets of cutting blades 407 to adapt to warp-knitted fabrics of different widths. The air pressure spring 406 can provide distance compensation between the cutting blade 407 and the support roller 408 to adapt to warp-knitted fabrics of different thicknesses.
[0028] The telescopic rod 303 drives the mounting plate 302 to move up and down and slide inside the mounting frame 301. With the cooperation of two sets of guide rollers 308 and tension rollers 309, the tension force of the warp-knitted fabric passing above the mounting plate 302 can be applied to tension the warp-knitted fabric, thereby preventing the fabric from being overstretched and deformed, and achieving precise cutting.
[0029] Then, the drive motor 205 drives the take-up roller 204 to rotate, which will pull the warp-knitted fabric to move. When the warp-knitted fabric passes between the pressure roller and the support table 307, under the action of the weight of the top plate 305, the warp-knitted fabric passing above the mounting plate 302 can be flattened, the wrinkles on the surface can be smoothed, and the wrinkles can be prevented from affecting the subsequent edge cutting work. Then, the edge cutting operation is carried out between the cutter and the support roller 408. The finished fabric is taken up by the take-up roller 204, and the cut edge material is guided to the notch 101 by the guide frame and discharged from the worktable 1.
[0030] Through the above steps, the tension of the warp-knitted fabric passing above the mounting plate 302 can be adjusted by the cooperation of two sets of guide rollers 308 and tension rollers 309, so that it can be tightened for subsequent cutting. The height of the mounting plate 302 can be adjusted by the telescopic rod 303, and the distance between the guide rollers 308 and tension rollers 309 can be adjusted, thereby tightening the fabric and preventing the fabric from being overstretched and deformed, thus achieving precise cutting. This solves the problem that traditional edge cutting devices usually use a fixed guide structure, which is prone to overstretching and deformation of elastic warp-knitted fabric materials, or insufficient stretching to produce wrinkles, resulting in inaccurate positioning during subsequent edge cutting and affecting the quality of the finished product after edge cutting.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A warp-knitted fabric edge-cutting device capable of precise cutting, comprising a worktable (1), characterized in that: It also includes a sorting component and a cutting component. The sorting component includes a mounting frame (301), a mounting plate (302), a telescopic rod (303), a column (304), a top plate (305), a leveling roller (306), a support platform (307), a guide roller (308), and a tension roller (309). The mounting frame (301) is fixedly installed above the workbench (1). The mounting plate (302) is slidably connected to the inside of the mounting frame (301). The telescopic rod (303) is fixedly installed inside the workbench (1). The output end of the telescopic rod (303) is fixedly connected to the lower end of the mounting plate (302). The mounting plate (302) has... Four sets of columns (304) are fixedly installed on the top. Tension rollers (309) are rotatably connected between two sets of columns (304). Support platform (307) is fixedly installed on the top of mounting plate (302). Top plate (305) is set on the top of support platform (307). Multiple sets of leveling rollers (306) are rotatably connected below top plate (305). Multiple sets of leveling rollers (306) are arranged linearly. Guide rollers (308) are rotatably connected inside mounting frame (301). Two sets of guide rollers (308) are provided. The two sets of guide rollers (308) are symmetrically arranged through the center line of mounting frame (301). Cutting component is set on one side of the finishing component.
2. The warp-knitted fabric edge-cutting device according to claim 1, characterized in that: A smooth hole (310) is provided above the column (304), and four sets of insert rods (311) are fixedly installed below the top plate (305). The insert rods (311) are located inside the smooth hole (310), and the insert rods (311) are slidably connected to the smooth hole (310).
3. The warp-knitted fabric edge-cutting device according to claim 1, characterized in that: The surface of the workbench (1) has a notch (101) and the notch (101) is located on one side of the cutting assembly. A guide frame (102) is fixedly installed above the workbench (1) and the surface of the guide frame (102) is inclined.
4. The warp-knitted fabric edge-cutting device according to claim 1, characterized in that: A first support frame (201) is fixedly installed above the workbench (1). The first support frame (201) is located at one end of the workbench (1), and an unwinding roller (202) is rotatably connected inside the first support frame (201).
5. The warp-knitted fabric edge-cutting device according to claim 1, characterized in that: A second support frame (203) is fixedly installed above the workbench (1). The second support frame (203) is located at the other end of the workbench (1). A take-up roller (204) is rotatably connected inside the second support frame (203). A drive motor (205) is fixedly installed on one side of the second support frame (203). The output end of the drive motor (205) is fixedly connected to the take-up roller (204).
6. The warp-knitted fabric edge-cutting device according to claim 5, characterized in that: The cutting assembly includes a gantry (401), a bidirectional lead screw (402), a servo motor (403), an internal thread block (404), and a guide rail (405). The gantry (401) is fixedly installed above the workbench (1). The gantry (401) is located between the mounting frame (301) and the second support frame (203). The bidirectional lead screw (402) is rotatably connected inside the gantry (401). The servo motor (403) is fixedly installed on one side of the gantry (401). The output end of the servo motor (403) is fixedly connected to the bidirectional lead screw (402). The guide rail (405) is fixedly installed on the lower surface inside the gantry (401). The internal thread block (404) is slidably connected to the bottom of the guide rail (405). The internal thread block (404) is threadedly connected to the bidirectional lead screw (402). There are two sets of internal thread blocks (404).
7. The warp-knitted fabric edge-cutting device according to claim 6, characterized in that: The cutting assembly includes a pneumatic spring (406), a cutting blade (407), and a support roller (408). The pneumatic spring (406) is fixedly installed below the internal thread block (404), the cutting blade (407) is fixedly installed at the output end of the lower end of the pneumatic spring (406), and the support roller (408) is rotatably connected to the inside of the gantry (401) and is located below the cutting blade (407).