Cutting device for high-density composite fabric containing polyamide fibers

Abstract

The utility model relates to the technical field of fabric cutting, in particular to a polyamide fiber-containing high-density composite fabric cutting device which comprises a cutting box assembly, a protective gas pump assembly, a cutting table assembly, a three-axis adjusting laser fabric cutting machine and a sealing cover assembly, a three-axis adjusting laser fabric cutting machine is arranged in the cutting box assembly. A cutting table assembly is arranged below the three-axis adjusting laser fabric cutting machine. Protective gas nitrogen introduced from the nitrogen input valve end is pressurized through the low-speed air pump and then is filled into the cutting waste hopper along the nitrogen introduction pipe until the sealed processing box is filled with nitrogen, and oxygen is squeezed into the gas one-way valve and discharged outwards, so that the content of oxygen in the sealed processing box is greatly reduced, and the service life of the cutting waste hopper is prolonged. Therefore, the problem of combustion of the composite fabric containing the polyamide fiber during laser cutting by the three-axis adjusting laser fabric cutting machine is solved.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting technology, and in particular to a cutting device for high-density composite fabrics containing polyamide fibers. Background Technology

[0002] Fabrics containing polyamide fibers, such as nylon 66 and nylon 6, are widely used in the textile industry. However, these fabrics are prone to fraying when cut using traditional cutting methods.

[0003] Given the drawbacks of traditional cutting methods, laser cutting machines are typically used for fabrics containing polyamide fibers. Lasers can slightly melt the edges of these fabrics, creating a seamless, non-fraying edge without requiring additional edge treatment. However, new problems arise during actual laser cutting. To ensure cutting quality, a protective gas is required. The high-speed jet of this protective gas generates significant impact, which can easily blow away thin polyamide fiber fabrics, causing them to shift and interfering with normal cutting operations, severely impacting cutting accuracy and efficiency. Utility Model Content

[0004] To overcome the difficulty of pattern cutting of existing polyamide fiber-containing fabrics, laser cutting machines are generally used for such fabrics. However, the high-speed jet of protective gas during laser cutting can blow the fabric away and interfere with the cutting process. This invention provides a cutting device for high-density composite fabrics containing polyamide fibers.

[0005] The technical solution is as follows: A high-density composite fabric cutting device containing polyamide fibers includes a cutting box assembly, a protective gas pump assembly, a cutting table assembly, a three-axis adjustable laser fabric cutting machine, and a sealing cover assembly; the three-axis adjustable laser fabric cutting machine is installed inside the cutting box assembly; the cutting table assembly is installed below the three-axis adjustable laser fabric cutting machine; the cutting box assembly includes a sealed processing box and a gas one-way valve; the cutting table assembly includes a laser cutting platform, a cutting waste hopper, a baffle grid, and a nitrogen inlet pipe; the protective gas pump assembly includes a low-speed gas pump, a nitrogen input valve, and an airflow electric control valve.

[0006] Furthermore, a three-axis adjustable laser fabric cutting machine is installed inside the sealed processing box; a laser cutting platform is installed below the three-axis adjustable laser fabric cutting machine; a cutting waste hopper is installed below the laser cutting platform, and the laser cutting platform and the cutting waste hopper are fixedly connected by bolts, and the cutting waste hopper is fixedly connected to the inner wall of the sealed processing box by bolts.

[0007] Furthermore, the inner wall of the cutting waste hopper is provided with a baffle grille, and the baffle grille is integrally formed with the cutting waste hopper; a nitrogen inlet pipe is provided at the rear end of the baffle grille, and the nitrogen inlet pipe is fixedly connected to the laser cutting platform.

[0008] Furthermore, a low-speed air pump is installed at the rear of the sealing processing box, and the gas output end of the low-speed air pump is connected to the nitrogen inlet pipe.

[0009] Furthermore, a nitrogen input valve is provided on one side of the low-speed air pump, and the nitrogen input valve is connected to the gas input end of the low-speed air pump; a nitrogen input valve is provided in front of the low-speed air pump, and the nitrogen input valve is located inside the nitrogen inlet pipe; gas check valves are provided on both sides above the low-speed air pump, and the gas check valves are connected to the inside of the sealing processing box, and the gas flow direction of the gas check valves is to discharge from the inside of the sealing processing box to the outside along the gas check valves.

[0010] Furthermore, a sealing cover assembly is provided above the cutting box assembly; the sealing cover assembly includes a cover plate and a sealing strip; the cover plate and the sealing processing box are rotatably connected by a highly wear-resistant soft rubber.

[0011] Furthermore, a sealing strip is provided around the edge of the cover plate, and the sealing strip is fixedly connected to the cover plate and sealed to the inner wall of the sealing processing box.

[0012] The beneficial effects are as follows: This utility model uses a low-speed air pump to pressurize the protective nitrogen gas introduced through the nitrogen input valve and fill it into the cutting waste hopper through the nitrogen inlet pipe. The flow rate of the nitrogen gas flow inside the nitrogen inlet pipe is controlled by the airflow control valve, and the airflow impact force is reduced by the baffle grid. As a result, the cutting waste hopper and the area above the laser cutting platform are gradually filled with nitrogen until the sealed processing box is full of nitrogen. Oxygen is squeezed into the gas one-way valve and discharged to the outside, which greatly reduces the oxygen content inside the sealed processing box. This ensures that the three-axis adjustable laser fabric cutting machine will not cause combustion problems when laser cutting composite fabrics containing polyamide fibers. Because the protective gas filling method of filling the sealed processing box with nitrogen and discharging oxygen is slower and more comprehensive, it effectively prevents the problem of high-speed protective airflow from the laser emitter tip blowing away the fabric.

[0013] With the sealing cover assembly, the cover plate and sealing strip of the sealing cover assembly have a high sealing performance with the inner wall of the sealing processing chamber, effectively preventing external air from entering the interior of the sealing processing chamber and effectively improving the stability of nitrogen filling and oxygen discharge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the cutting table assembly and the three-axis adjustable laser fabric cutting machine of this utility model.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the cutting waste hopper of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the low-speed air pump of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Cutting box assembly; 2. Cutting table assembly; 3. Three-axis adjustable laser fabric cutting machine; 4. Sealing cover assembly; 5. Protective gas pump assembly; 101. Sealed processing box; 102. Gas one-way valve; 201. Laser cutting platform; 202. Cutting waste hopper; 203. Baffle grille; 204. Nitrogen inlet pipe; 401. Cover plate; 402. Sealing strip; 501. Low-speed air pump; 502. Nitrogen input valve; 503. Airflow electric control valve. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, a high-density composite fabric cutting device containing polyamide fibers includes a cutting box assembly 1, a protective gas pump assembly 5, a cutting table assembly 2, a three-axis adjustable laser fabric cutting machine 3, and a sealing cover assembly 4. The three-axis adjustable laser fabric cutting machine 3 is installed inside the cutting box assembly 1. The cutting table assembly 2 is installed below the three-axis adjustable laser fabric cutting machine 3. The cutting box assembly 1 includes a sealed processing box 101 and a gas one-way valve 102. The cutting table assembly 2 includes a laser cutting platform 201, a cutting waste hopper 202, a baffle 203, and a nitrogen inlet pipe 204. The protective gas pump assembly 5 includes a low-speed gas pump 501, a nitrogen input valve 502, and an airflow electric control valve 503.

[0023] The sealed processing box 101 is equipped with a three-axis adjustable laser fabric cutting machine 3; a laser cutting platform 201 is installed below the three-axis adjustable laser fabric cutting machine 3; a cutting waste hopper 202 is installed below the laser cutting platform 201, and the laser cutting platform 201 and the cutting waste hopper 202 are fixedly connected by bolts, and the cutting waste hopper 202 is fixedly connected to the inner wall of the sealed processing box 101 by bolts.

[0024] The inner wall of the cutting waste hopper 202 is provided with a baffle 203, and the baffle 203 is integrally formed with the cutting waste hopper 202; a nitrogen inlet pipe 204 is provided at the rear end of the baffle 203, and the nitrogen inlet pipe 204 is fixedly connected to the laser cutting platform 201.

[0025] A low-speed air pump 501 is installed at the rear of the sealed processing box 101, and the gas output end of the low-speed air pump 501 is connected to the nitrogen inlet pipe 204.

[0026] A nitrogen input valve 502 is provided on one side of the low-speed air pump 501, and the nitrogen input valve 502 is connected to the gas input end of the low-speed air pump 501; a nitrogen input valve 502 is provided in front of the low-speed air pump 501, and the nitrogen input valve 502 is located inside the nitrogen inlet pipe 204; gas one-way valves 102 are provided on both sides above the low-speed air pump 501, and the gas one-way valves 102 are connected to the inside of the sealing processing box 101, and the gas flow direction of the gas one-way valves 102 is to discharge from the inside of the sealing processing box 101 to the outside along the gas one-way valves 102.

[0027] The protective nitrogen gas introduced through the nitrogen input valve 502 is pressurized by the low-speed air pump 501 and then filled into the cutting waste hopper 202 through the nitrogen inlet pipe 204. The flow rate of the nitrogen gas inside the nitrogen inlet pipe 204 is controlled by the airflow control valve 503. The airflow impact force is reduced by the baffle 203, so that the cutting waste hopper 202 and the area above the laser cutting platform 201 are gradually filled with nitrogen until the sealed processing box 101 is full of nitrogen. Oxygen is squeezed into the gas one-way valve 102 and discharged to the outside, thereby greatly reducing the oxygen content inside the sealed processing box 101. This ensures that the three-axis adjustable laser fabric cutting machine 3 will not cause combustion problems when cutting composite fabrics containing polyamide fibers during laser cutting. Because the protective gas filling method of filling the sealed processing box 101 with nitrogen and discharging oxygen is slower and more comprehensive, it effectively prevents the problem of high-speed protective airflow from the laser emitter tip blowing away the fabric.

[0028] Example 2

[0029] Based on Example 1, such as Figures 1-5 As shown, a sealing cover assembly 4 is provided above the cutting box assembly 1; the sealing cover assembly 4 includes a cover plate 401 and a sealing strip 402; the cover plate 401 and the sealing processing box 101 are rotatably connected by a high wear-resistant soft rubber.

[0030] A sealing strip 402 is provided around the edge of the cover plate 401, and the sealing strip 402 is fixedly connected to the cover plate 401, and the sealing strip 402 is sealed to the inner wall of the sealing processing box 101.

[0031] With the sealing cover assembly 4, the cover plate 401 and sealing strip 402 of the sealing cover assembly 4 have high sealing performance with the inner wall of the sealing processing box 101, effectively preventing external air from entering the interior of the sealing processing box 101 and effectively improving the stability of nitrogen filling and oxygen discharge.

Claims

1. A cutting device for high-density composite fabrics containing polyamide fibers, comprising a cutting box assembly (1) and a protective gas pump assembly (5), characterized in that: It also includes a cutting table assembly (2), a three-axis adjustable laser fabric cutting machine (3), and a sealing cover assembly (4); the cutting box assembly (1) is equipped with a three-axis adjustable laser fabric cutting machine (3); the cutting table assembly (2) is located below the three-axis adjustable laser fabric cutting machine (3); the cutting box assembly (1) includes a sealed processing box (101) and a gas one-way valve (102); the cutting table assembly (2) includes a laser cutting platform (201), a cutting waste hopper (202), a baffle grid (203), and a nitrogen inlet pipe (204); the protective gas pump assembly (5) includes a low-speed gas pump (501), a nitrogen input valve (502), and an airflow control valve (503).

2. The high-density composite fabric cutting device containing polyamide fibers according to claim 1, characterized in that: The sealed processing box (101) is equipped with a three-axis adjustable laser fabric cutting machine (3); a laser cutting platform (201) is provided below the three-axis adjustable laser fabric cutting machine (3); a cutting waste hopper (202) is provided below the laser cutting platform (201), and the laser cutting platform (201) and the cutting waste hopper (202) are fixedly connected by bolts, and the cutting waste hopper (202) is fixedly connected to the inner wall of the sealed processing box (101) by bolts.

3. The high-density composite fabric cutting device containing polyamide fibers according to claim 2, characterized in that: The inner wall of the cutting waste hopper (202) is provided with a baffle grille (203), and the baffle grille (203) is integrally formed with the cutting waste hopper (202); a nitrogen inlet pipe (204) is provided at the rear end of the baffle grille (203), and the nitrogen inlet pipe (204) is fixedly connected to the laser cutting platform (201).

4. The high-density composite fabric cutting device containing polyamide fibers according to claim 3, characterized in that: A low-speed air pump (501) is provided at the rear of the sealed processing box (101), and the gas output end of the low-speed air pump (501) is connected to the nitrogen inlet pipe (204).

5. The high-density composite fabric cutting device containing polyamide fibers according to claim 4, characterized in that: A nitrogen input valve (502) is provided on one side of the low-speed air pump (501), and the nitrogen input valve (502) is connected to the gas input end of the low-speed air pump (501); a nitrogen input valve (502) is provided in front of the low-speed air pump (501), and the nitrogen input valve (502) is located inside the nitrogen inlet pipe (204); gas check valves (102) are provided on both sides above the low-speed air pump (501), and the gas check valves (102) are connected to the inside of the sealing processing box (101), and the gas flow direction of the gas check valves (102) is to discharge from the inside of the sealing processing box (101) to the outside along the gas check valves (102).

6. The high-density composite fabric cutting device containing polyamide fibers according to claim 1, characterized in that: A sealing cover assembly (4) is provided on the top of the cutting box assembly (1); the sealing cover assembly (4) includes a cover plate (401) and a sealing strip (402); the cover plate (401) and the sealing processing box (101) are rotatably connected by a high wear-resistant soft rubber.

7. The high-density composite fabric cutting device containing polyamide fibers according to claim 6, characterized in that: A sealing strip (402) is provided around the edge of the cover plate (401), and the sealing strip (402) is fixedly connected to the cover plate (401), and the sealing strip (402) is sealed to the inner wall of the sealing processing box (101).

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