A metal mesh cutting device and method

Abstract

This invention relates to the field of laser cutting technology, specifically to a metal mesh cutting device and method. The device includes a conveying mechanism and a supporting mechanism. The conveying mechanism includes a base, a support frame, a motor a, a conveying roller, and a conveyor belt. The support frame is connected to the base. The conveying roller is rotatably connected to the support frame. The conveyor belt is connected to the conveying roller. The motor a is mounted on the support frame and is connected to the conveying roller for transmission. The conveyor belt has holes a. The supporting mechanism includes a telescopic component, a hollow plate, a tube, an elastic membrane, an isolation tube, and a partition. The hollow plate is located between the conveyor belts. The telescopic component is mounted on the base and connected to the hollow plate. The hollow plate has holes b. The tube is slidably connected to holes b. The bottom end of the tube has a telescopic groove. The isolation tube is slidably connected to the telescopic groove and also connected to the partition. The partition is connected to the inner wall of the hollow plate. The elastic membrane is connected to the bottom end of the tube and the partition. This invention utilizes a dense needle bed composed of tubes to achieve effective fixation of a three-dimensional metal mesh.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a metal mesh cutting device and method. Background Technology

[0002] Laser cutting is one of the commonly used cutting tools for metal window screens. It features high precision and a high degree of automation, and can cut complex shapes.

[0003] CN217832307U discloses an ultra-thin metal mesh laser cutting device. The device involves placing the metal mesh on top of a worktable, then pushing the front first crossbeam. The movement of the front first crossbeam causes two connecting blocks to slide within two first sliding grooves. After pushing the front first crossbeam to the front edge of the metal mesh, the rear first crossbeam is pushed to the corresponding position using the same steps. Then, the locking shaft is pushed, causing the movable column to move. The movable column then causes two sliders to slide within the second sliding groove. The locking shaft also causes the blocking component to move, and the locking shaft also causes the elastic component to move. When the locking shaft reaches the desired position, it is rotated. The rotation of the locking shaft causes the blocking component to rotate. After rotation, the locking shaft is released, and the elastic component rebounds, causing the locking shaft to move downwards until it contacts the metal mesh. The same steps are then repeated for the other three sets of clamping components until all three locking shafts are in contact with the metal mesh. At this point, the position of the metal mesh is fixed, achieving the function of fixing metal meshes of different sizes.

[0004] However, the existing technology has the following drawbacks: it can only fix planar metal screens. For three-dimensional screens (such as wavy screens), which are non-planar structures, the fixing plate at the bottom of the locking shaft is planar and cannot effectively abut against them, resulting in a significant reduction in the fixing effect. In addition, the cutting device requires manual placement of the metal mesh, and after cutting, it is removed, a new metal mesh is placed, and the fixing operation is repeated, resulting in an inconsistent cutting operation, low cutting efficiency, and reduced production efficiency of the metal mesh. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a metal mesh cutting device and method.

[0006] The technical solution of the present invention: a metal mesh cutting device, comprising: The conveying mechanism includes a base, a support frame, a motor a, conveying rollers, and a conveyor belt; the support frame has two sets and is connected to the base; the conveying rollers have two sets and are rotatably connected to the support frames on both sides respectively; the conveyor belt is connected to the conveying rollers on both sides; the motor a is mounted on the support frame and is connected to the conveying rollers for transmission; the conveyor belt has evenly distributed holes a. A cutting mechanism, mounted above the conveying mechanism, is used to cut metal mesh; The support mechanism includes a telescopic component, a hollow plate, a tube, a magnetic component, an elastic membrane, an isolation tube, and a partition. The hollow plate is located between two conveyor belts. The telescopic component is mounted on a base and connected to the hollow plate. Multiple holes (b) are formed in the hollow plate. The tube is slidably connected to the holes (b). A telescopic groove is formed on the bottom end face of the tube. The isolation tube is slidably connected to the telescopic groove, and one end of the tube is connected to the partition. The partition is connected to the inner wall of the hollow plate. A hole (c) communicating with the isolation tube is formed on the partition. The bottom end of the tube is connected to the elastic membrane. The elastic membrane is connected to the partition. A buffer cavity is formed between the elastic membrane, the outer wall of the tube, and the partition. The buffer cavity contains magnetorheological fluid. Multiple sets of magnetic components are located below the tube. The filtration mechanism, located on the base and connected to the hollow plate, is used to purify harmful gases generated during cutting.

[0007] Preferably, the cutting mechanism includes a slide rail, a movable frame, an adjustment part a, an adjustment part b, a sliding seat, and a laser cutting head; two sets of slide rails are provided and located on both sides of the conveying mechanism; the two ends of the movable frame are slidably connected to the slide rails; the adjustment part a is provided on the slide rails and connected to the movable frame; a through groove is provided on the movable frame; the sliding seat is slidably connected to the through groove; the adjustment part b is provided on the movable frame and connected to the sliding seat; the laser cutting head is connected to the sliding seat.

[0008] Preferably, the adjusting part a includes a motor b and a screw a; the screw a is threadedly connected to the moving frame; the motor b is mounted on the slide rail and its output end is connected to the screw a.

[0009] Preferably, the adjusting part b includes a motor c and a screw b; the screw b is threadedly connected to the sliding seat and rotatably connected to the inner wall of the through groove; the motor c is mounted on the movable frame and its output end is connected to the screw b.

[0010] Preferably, the movable frame is equipped with a fan; the fan faces the upper surface of the conveyor belt.

[0011] Preferably, the filtration mechanism includes a housing, a pump body, a filter screen, and a filter box; both the housing and the pump body are mounted on a base; the exhaust end of the pump body is connected to one end of the housing via pipe a; the suction end of the pump body is connected to a hollow plate via pipe b; the other end of the housing is connected to pipe c; the top of the housing has openings a and b; the filter screen is inserted into the inside of the housing via opening a; the filter box is inserted into the inside of the housing via opening b; the filter box contains activated carbon particles; and non-woven fabric is provided on both sides of the filter box.

[0012] Preferably, a sealing plate is connected to the top of both the filter box and the filter screen; an opening c is provided at the top of the filter box; and a sealing plug is provided inside the opening c.

[0013] The present invention also proposes a method for cutting metal mesh, using the aforementioned metal mesh cutting device, comprising the following steps: S1. Material conveying: Place the metal mesh to be cut one by one on the conveyor belt, and use the conveyor belt to transport them one by one to the cutting mechanism. S2, Support and Positioning: When the metal mesh is conveyed to the bottom of the cutting mechanism, the conveyor belt stops conveying and the telescopic component drives the hollow plate to move up, so that the insertion tube passes through the hole a and lifts up the metal mesh for support. The metal mesh presses down on the insertion tube under its own weight, so that the dense insertion tube can adapt to the shape of the metal mesh. Then, the pump body draws air out of the hollow plate, so that the insertion tube generates suction force to stably support metal meshes of different shapes. S3. Laser cutting: The cutting mechanism is used to cut the metal mesh with laser. During the cutting process, the suction generated by the tube can remove the harmful gases generated during the cutting process, and the tube can block the mesh holes of the metal mesh. The laser will not penetrate the mesh holes and will not cause the phenomenon of dry hitting, burning the table surface, or defocusing. S4. Automatic unloading and self-cleaning: After cutting, the telescopic component drives the hollow plate to descend, causing the insertion tube to move down and separate from the hole a. The inner wall of the hole a will scrape off the slag on the surface of the insertion tube. The scraped slag will fall onto the conveyor belt. The cut metal mesh will fall onto the conveyor belt. As the conveyor belt is conveyed, the slag, the cut metal mesh and the scrap are all transported to the end of the conveyor belt and fall off. The staff will then collect the cut metal mesh.

[0014] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: With a support and filtering mechanism, the dense needle bed composed of multiple tubes can perfectly adapt to the shape of planar and three-dimensional metal meshes. By using the tubes to create negative pressure suction, the metal mesh is limited, ensuring the stability of the three-dimensional metal mesh during the cutting process. At the same time, the suction generated by the tubes can absorb and filter harmful gases generated by laser cutting, creating a good cutting working environment.

[0015] By incorporating a conveying mechanism, the metal mesh can be automatically unloaded. Simultaneously, as the insertion tube moves downward and separates from the conveyor belt, the slag on the surface of the insertion tube can be cleaned, eliminating the need for subsequent cleaning by staff and reducing their workload. Attached Figure Description

[0016] Figure 1 A three-dimensional representation of an embodiment of the present invention Figure 1 ; Figure 2 A three-dimensional representation of an embodiment of the present invention Figure 2 ; Figure 3 For this Figure 2 Enlarged structural diagram at point A in the middle; Figure 4This is a schematic diagram of the hollow plate and the insertion tube in a cross-sectional state according to one embodiment of the present invention. Figure 5 For this Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the structure of the filter screen and filter box separated from the housing in one embodiment of the present invention; Figure 7 This is a schematic diagram of the cutting mechanism in one embodiment of the present invention.

[0017] Reference numerals: 1. Base; 2. Support frame; 3. Motor a; 4. Conveyor belt; 5. Moving frame; 6. Hollow plate; 7. Fan; 8. Slide rail; 9. Motor b; 10. Telescopic component; 11. Insert tube; 1101. Telescopic groove; 12. Laser cutting head; 13. Motor c; 14. Pump body; 15. Magnetic component; 16. Partition plate; 17. Box body; 18. Filter screen plate; 19. Non-woven fabric; 20. Filter box; 21. Sealing plug; 22. Screw a; 23. Elastic membrane; 24. Isolation tube; 25. Tube b. Detailed Implementation

[0018] Example 1, as Figures 1-5 As shown, the present invention provides a metal mesh cutting device, which includes a conveying mechanism, a cutting mechanism, a supporting mechanism, and a filtering mechanism. The conveying mechanism includes a base 1, a support frame 2, a motor a3, conveying rollers, and a conveyor belt 4. The support frame 2 has two sets and is connected to the base 1. The conveying rollers have two sets and are rotatably connected to the support frames 2 on both sides. The conveyor belt 4 is connected to the conveying rollers on both sides (the conveyor belt 4 is made of PTFE (Teflon) glass fiber material, which has the characteristics of high temperature resistance, non-sticking, and aging resistance). The motor a3 is mounted on the support frame 2 and is connected to the conveying rollers for transmission. The conveyor belt 4 has evenly distributed holes a (the inner wall of the holes a is provided with metal rings for scraping off the slag hanging on the insertion tube 11). The cutting mechanism is mounted above the conveying mechanism and is used to cut the metal mesh; The support mechanism includes a telescopic component 10, a hollow plate 6, a tube 11, a magnetic component 15, an elastic membrane 23, an isolation tube 24, and a partition 16; the hollow plate 6 is located between the upper and lower conveyor belts 4; the telescopic component 10 is located on the base 1 and connected to the hollow plate 6 (the telescopic component 10 includes, but is not limited to, devices such as cylinders); the hollow plate 6 has multiple holes b (whenever the conveyor belt 4 stops conveying, holes a and holes b are aligned); the tube 11 is slidably connected to the holes b (the top of the tube 11 has a hemispherical structure and its surface is covered with a high-temperature resistant rubber layer, which can enhance the sealing between the top of the tube 11 and the metal mesh; the tube 11 is a thin tube with multiple tubes densely distributed to form a needle bed); the bottom end face of the tube 11 has a telescopic groove 1101; the isolation tube 24 is slidably connected to the telescopic groove 1101 and one end of it is connected to the partition 16 (the surface of the isolation tube 24 ...); The inner wall of the expansion joint 1101 is provided with a nitrile rubber layer, which is a commonly used and excellent material in sliding seals, with the advantages of wear resistance, oil resistance, and high cost-effectiveness; the partition 16 is connected to the inner wall of the hollow plate 6; the partition 16 has a hole c that communicates with the isolation tube 24; the bottom end of the insertion tube 11 is connected to the elastic membrane 23; the elastic membrane 23 is connected to the partition 16 (the elastic membrane 23 includes, but is not limited to, TPU film); a buffer cavity is formed between the elastic membrane 23, the outer wall of the insertion tube 11, and the partition 16; the buffer cavity contains a magnetorheological fluid (when there is no magnetic field, the magnetic particles are freely suspended, exhibiting low viscosity Newtonian fluid; when an external magnetic field is applied, the particles are magnetized and arranged into a chain structure, becoming a high viscosity Bingham fluid, exhibiting shear resistance similar to a solid); multiple sets of magnetic components 15 are provided and located below the insertion tube 11 (magnetic components 15 include, but are not limited to, electromagnets). The filter mechanism is located on the base 1 and connected to the hollow plate 6 to purify the harmful gases generated during cutting.

[0019] The metal mesh used in this embodiment is a thick metal mesh, with a wire diameter of 0.7mm-0.9mm for ordinary thick metal mesh and 1mm-2mm for three-dimensional metal mesh.

[0020] In this embodiment, the telescopic component 10, motor a3, motor b9, and motor c13 are all controlled by a controller (including but not limited to a PLC controller) to operate in an orderly manner. The conveyor roller is driven by motor a3 to rotate intermittently, which in turn drives the conveyor belt 4 to rotate intermittently. When the conveyor belt 4 stops, the worker places the metal mesh to be cut on it. When the conveyor belt 4 transports the metal mesh to the cutting mechanism, it stops transporting the mesh. At this time, hole a and hole b are aligned, and the telescopic component 10 moves the hollow plate 6 upward. The hollow plate 6 moves the insertion tube 11 upward and through hole a, thus lifting and supporting the metal mesh to be cut. Under the weight of the metal mesh itself, the insertion tubes 11 will press down. The downward movement of the insertion tubes 11 will squeeze the magnetorheological fluid, thereby causing the elastic membrane 23 to deform. Since each insertion tube 11 can move independently and flexibly, each insertion tube 11 can contact the surface of the metal mesh. The process involves several steps: first, ensuring that the dense needle bed formed by the insertion tube 11 perfectly adapts to the shapes of both planar and three-dimensional metal meshes; then, using the magnetic component 15 to generate a magnetic field, which solidifies the magnetorheological fluid to support the insertion tube 11, thus ensuring stable support of the metal mesh by the insertion tube 11; next, using the filtration mechanism to generate negative pressure to adsorb the metal mesh (part of the insertion tube 11 will contact the mesh wires and thus adsorb them under negative pressure), achieving the limiting function of the metal mesh and ensuring its stability during the cutting process; finally, using the cutting mechanism to cut the metal mesh, during which the filtration mechanism absorbs and filters harmful gases generated by laser cutting through the suction force generated by the insertion tube 11, creating a good cutting environment.

[0021] After cutting, the telescopic component 10 moves the hollow plate 6 downward, which in turn moves the insertion tube 11 downward and separates it from the hole a. The metal ring on the inner wall of the hole a can scrape off the slag on the insertion tube 11, realizing the self-cleaning function of the slag. The scraped slag will fall onto the conveyor belt 4 and be transported away by the conveyor belt 4. At the same time, the cut metal mesh and scraps will also be transported away. The staff sets up a recycling box at the end of the conveyor belt 4. When the cut metal mesh falls into the recycling box, the staff can take out the cut metal mesh. There is no need for the staff to clean the slag and scraps. At the same time, the automatic unloading function of the cut metal mesh is realized. The processes of supporting and fixing the metal mesh, cutting, unloading and cleaning are completed in one go, reducing manual intervention and the workload of the staff. At the same time, the continuity of the metal mesh cutting operation is realized, which significantly improves the cutting efficiency of the metal mesh.

[0022] It should be noted that the scraped residue may fall onto the hollow plate 6 through hole a, and the fan 7 can blow away the residue that has fallen onto the hollow plate 6.

[0023] It is worth noting that during the cutting process, the negative pressure suction generated by the insertion tube 11 can remove the residue stuck in the insertion tube 11, thus preventing the insertion tube 11 from becoming blocked.

[0024] Example 2, as Figure 7As shown, this invention proposes a metal mesh cutting device. Compared to Embodiment 1, this embodiment further details the structure of the cutting mechanism. The cutting mechanism includes a slide rail 8, a moving frame 5, an adjusting part a, an adjusting part b, a sliding seat, and a laser cutting head 12 (the laser cutting head 12 is an autofocus type laser cutting head 12, which can dynamically adjust its focus in real time to follow the ups and downs of the three-dimensional metal mesh shape; this is a mature existing technology). Two sets of slide rails 8 are provided and located on both sides of the conveying mechanism. The two ends of the moving frame 5 are slidably connected to the slide rail 8. The adjusting part a is provided on the slide rail 8 and connected to the moving frame 5. A through slot is provided on the moving frame 5. The seat is slidably connected to the through groove; the adjustment part b is provided on the movable frame 5 and connected to the sliding seat; the laser cutting head 12 is connected to the sliding seat; the adjustment part a includes a motor b9 and a screw a22; the screw a22 is threadedly connected to the movable frame 5; the motor b9 is provided on the slide rail 8 and its output end is connected to the screw a22; the adjustment part b includes a motor c13 and a screw b; the screw b is threadedly connected to the sliding seat and rotatably connected to the inner wall of the through groove; the motor c13 is provided on the movable frame 5 and its output end is connected to the screw b; the motor b9 and the motor c13 are reversible motors; the movable frame 5 is provided with a fan 7; the fan 7 faces the upper surface of the conveyor belt 4.

[0025] In this embodiment, the screw a22 is driven to rotate forward or reverse by the motor b9, which controls the moving frame 5 to move back and forth along the slide rail 8, so that the moving frame 5 drives the laser cutting head 12 to move back and forth along the conveyor belt 4; the screw b is driven to rotate forward or reverse by the motor c13, so that the sliding seat drives the laser cutting head 12 to move back and forth along the through groove; thus realizing the cutting function of the metal mesh.

[0026] Example 3, as Figure 3 and Figure 6 As shown, the metal mesh cutting device proposed in this invention, compared with Embodiment 2, further details the structure of the filtering mechanism. The filtering mechanism includes a housing 17, a pump body 14, a filter plate 18 (the filter plate 18 is a high-precision filter plate 18), and a filter box 20; both the housing 17 and the pump body 14 are mounted on the base 1 (the pump body 14 is a vacuum pump); the exhaust end of the pump body 14 is connected to one end of the housing 17 through pipe a; the suction end of the pump body 14 is connected to the hollow plate 6 through pipe b25 (pipe b25 is a telescopic flexible hose used to adapt to air...). The lifting and lowering movement of the core plate 6); the other end of the box 17 is connected to the pipe c; the top of the box 17 has openings a and b; the filter plate 18 is inserted into the inside of the box 17 through opening a; the filter box 20 is inserted into the inside of the box 17 through opening b; the filter box 20 contains activated carbon particles; non-woven fabric 19 is provided on both sides of the filter box 20; the top of the filter box 20 and the filter plate 18 are both connected to sealing plates (the sealing plates are magnetically sealed to the box 17); the top of the filter box 20 has an opening c; a sealing plug 21 is provided in the opening c.

[0027] In this embodiment, the pump body 14, in conjunction with the tube b25, draws air from the hollow plate 6, thereby creating a negative pressure inside the insertion tube 11, which achieves the negative pressure adsorption function for the metal mesh. The insertion tubes 11 that are not in contact with the metal mesh wires will generate suction, which can draw the harmful gases generated during the laser cutting process into the hollow plate 6, and then be drawn into the housing 17 by the pump body 14. The harmful gases first pass through the filter plate 18, and then through the filter box 20. The filter plate 18 can block large molten slag, slag debris, and large metal particles in the harmful gases. The activated carbon particles in the filter box 20 can adsorb harmful components (such as chromium nickel oxide harmful gases). The purified gas is discharged through the tube c.

[0028] It should be noted that the filter screen 18 can be cleaned by pulling it out from the inside of the opening a; the activated carbon particles inside the filter box 20 can be replaced by pulling the filter box 20 out from the opening b and removing the sealing plug 21 from the opening c.

[0029] Example 4, please refer to Figures 1-7 The present invention also proposes a metal mesh cutting method, which uses the metal mesh cutting device described in any one of embodiments one to three above, and includes the following steps: S1. Material conveying: Place the metal mesh to be cut one by one on the conveyor belt 4, and use the conveyor belt 4 to convey them one by one to the cutting mechanism. S2, Support and Positioning: When the metal mesh is conveyed to the bottom of the cutting mechanism, the conveyor belt 4 stops conveying and the telescopic component 10 drives the hollow plate 6 to move upward, so that the insertion tube 11 passes through the hole a and lifts up the metal mesh for support. The metal mesh presses down on the insertion tube 11 under its own weight, so that the dense insertion tube 11 can adapt to the shape of the metal mesh. Then, the pump body 14 draws air out of the hollow plate 6, so that the insertion tube 11 generates suction force to stably support metal meshes of different shapes. S3. Laser cutting: The cutting mechanism is used to laser cut the metal mesh. During the cutting process, the suction generated by the insertion tube 11 can remove the harmful gases generated during the cutting process. In addition, the insertion tube 11 can block the mesh holes of the metal mesh, so the laser will not penetrate the mesh holes and cause phenomena such as dry hitting, burning the table surface and defocusing. S4. Automatic unloading and self-cleaning: After cutting, the telescopic component 10 drives the hollow plate 6 to descend, causing the insertion tube 11 to move down and separate from the hole a. The inner wall of the hole a will scrape off the slag on the surface of the insertion tube 11. The scraped slag will fall onto the conveyor belt 4. The cut metal mesh will fall onto the conveyor belt 4. As the conveyor belt 4 is conveyed, the slag, the cut metal mesh and the scrap are all conveyed to the end of the conveyor belt 4 and fall off. The staff will then collect the cut metal mesh.

[0030] In summary, the conveyor roller is driven by motor a3 to rotate intermittently, which in turn drives the conveyor belt 4 to rotate intermittently. When the conveyor belt 4 stops, the worker places the metal mesh to be cut on it. When the conveyor belt 4 transports the metal mesh to the cutting mechanism, it stops again. At this point, holes a and b are aligned, and the telescopic component 10 moves the hollow plate 6 upward. The hollow plate 6 then moves the insertion tubes 11 upward and through hole a, thus lifting and supporting the metal mesh to be cut. Under the weight of the metal mesh itself, the insertion tubes 11 are pressed down, and the mesh is cut... The downward movement of tube 11 compresses the magnetorheological fluid, causing the elastic membrane 23 to deform. Since each tube 11 can move independently and flexibly, each tube 11 can contact the surface of the metal mesh, ensuring that the dense needle bed formed by the tubes 11 perfectly adapts to the shapes of both planar and three-dimensional metal meshes. Then, a magnetic field is generated using the magnetic component 15, causing the magnetorheological fluid to solidify and support the tubes 11, thus ensuring stable support of the metal mesh by the tubes 11. Finally, the pump body 14, in conjunction with tube b25, extracts air from the hollow plate 6, thereby allowing the tubes 11 to... An internal negative pressure is created, thereby achieving the negative pressure adsorption function of the metal mesh (part of the insertion tube 11 will contact the mesh wires of the metal mesh and thus perform negative pressure adsorption on them), realizing the limiting function of the metal mesh and ensuring the stability of the metal mesh during the cutting process; then, the controller controls the motor b9 to rotate forward or reverse, which can control the moving frame 5 to move back and forth along the slide rail 8, so that the moving frame 5 drives the laser cutting head 12 to move back and forth along the conveyor belt 4; by controlling the motor a3 to rotate forward or reverse, the sliding seat drives the laser cutting head 12 to move back and forth along the through groove; The system enables the cutting of metal mesh. During the cutting process, the suction generated by the insertion tube 11 can draw the harmful gases produced by laser cutting into the hollow plate 6, and then into the housing 17 by the pump body 14. The harmful gases first pass through the filter plate 18, and then through the filter box 20. The filter plate 18 can block large molten slag, slag debris and large metal particles in the harmful gases. The activated carbon particles in the filter box 20 can adsorb harmful components (such as harmful gases such as chromium and nickel oxides). The purified gas is discharged through the pipe c, creating a good cutting working environment.

[0031] After cutting, the telescopic component 10 moves the hollow plate 6 downward, which in turn moves the insertion tube 11 downward and separates it from the hole a. The metal ring on the inner wall of the hole a can scrape off the slag on the insertion tube 11, realizing the self-cleaning function of the slag. The scraped slag will fall onto the conveyor belt 4 and be transported away by the conveyor belt 4. At the same time, the cut metal mesh and scraps will also be transported away. The staff sets up a recycling box at the end of the conveyor belt 4. When the cut metal mesh falls into the recycling box, the staff can take out the cut metal mesh. There is no need for the staff to clean the slag and scraps. At the same time, the automatic unloading function of the cut metal mesh is realized. The processes of supporting and fixing the metal mesh, cutting, unloading and cleaning are completed in one go, reducing manual intervention and the workload of the staff. At the same time, the continuity of the metal mesh cutting operation is realized, which significantly improves the cutting efficiency of the metal mesh.

[0032] 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 thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A metal mesh cutting device, characterized in that, include: The conveying mechanism includes a base (1), a support frame (2), a motor a (3), conveying rollers, and a conveyor belt (4); the support frame (2) has two sets and is connected to the base (1); the conveying rollers have two sets and are rotatably connected to the support frames (2) on both sides respectively; the conveyor belt (4) is connected to the conveying rollers on both sides; the motor a (3) is mounted on the support frame (2) and is connected to the conveying rollers for transmission; the conveyor belt (4) has evenly distributed holes a (401); A cutting mechanism, mounted above the conveying mechanism, is used to cut metal mesh; The support mechanism includes a telescopic component (10), a hollow plate (6), an insert (11), a magnetic component (15), an elastic membrane (23), an isolation tube (24), and a partition (16); the hollow plate (6) is located between the upper and lower conveyor belts (4); the telescopic component (10) is located on the base (1) and connected to the hollow plate (6); the hollow plate (6) has multiple holes b; the insert (11) is slidably connected to the holes b; the bottom end face of the insert (11) has a telescopic groove (1101); the isolation tube (24) and the partition (16) are connected to the hollow plate (6). The telescopic groove (1101) is slidably connected and one end of it is connected to the partition (16); the partition (16) is connected to the inner wall of the hollow plate (6); the partition (16) has a hole c that communicates with the isolation tube (24); the bottom end of the insertion tube (11) is connected to the elastic membrane (23); the elastic membrane (23) is connected to the partition (16); a buffer cavity is formed between the elastic membrane (23), the outer wall of the insertion tube (11) and the partition (16); the buffer cavity contains magnetorheological fluid; multiple sets of magnetic components (15) are provided and located below the insertion tube (11); A filtration mechanism, which is located on the base (1) and connected to the hollow plate (6), is used to purify harmful gases generated during cutting.

2. The metal mesh cutting device according to claim 1, characterized in that, The cutting mechanism includes a slide rail (8), a moving frame (5), an adjustment part a, an adjustment part b, a sliding seat, and a laser cutting head (12); the slide rail (8) is provided in two sets and located on both sides of the conveying mechanism; the two ends of the moving frame (5) are slidably connected to the slide rail (8); the adjustment part a is provided on the slide rail (8) and connected to the moving frame (5); a through groove is provided on the moving frame (5); the sliding seat is slidably connected to the through groove; the adjustment part b is provided on the moving frame (5) and connected to the sliding seat; the laser cutting head (12) is connected to the sliding seat.

3. The metal mesh cutting device according to claim 2, characterized in that, The adjustment unit a includes a motor b (9) and a screw a (22); the screw a (22) is threadedly connected to the moving frame (5); the motor b (9) is mounted on the slide rail (8) and its output end is connected to the screw a (22).

4. A metal mesh cutting device according to claim 2, characterized in that, The adjustment part b includes a motor c (13) and a screw b; the screw b is threadedly connected to the sliding seat and rotatably connected to the inner wall of the through groove; the motor c (13) is mounted on the moving frame (5) and its output end is connected to the screw b.

5. A metal mesh cutting device according to claim 2, characterized in that, The movable frame (5) is equipped with a fan (7); the fan (7) faces the upper surface of the conveyor belt (4).

6. A metal mesh cutting device according to claim 1, characterized in that, The filtration mechanism includes a housing (17), a pump (14), a filter screen (18), and a filter box (20); the housing (17) and the pump (14) are both mounted on the base (1); the exhaust end of the pump (14) is connected to one end of the housing (17) through pipe a; the suction end of the pump (14) is connected to the hollow plate (6) through pipe b (25); the other end of the housing (17) is connected to pipe c; the top of the housing (17) has openings a and b; the filter screen (18) is inserted into the inside of the housing (17) through opening a; the filter box (20) is inserted into the inside of the housing (17) through opening b; the filter box (20) contains activated carbon particles; the two sides of the filter box (20) are provided with non-woven fabric (19).

7. A metal mesh cutting device according to claim 6, characterized in that, The top of the filter box (20) and the filter screen (18) are both connected to a sealing plate; the top of the filter box (20) has an opening c; a sealing plug (21) is provided in the opening c.

8. A method for cutting metal mesh, using the metal mesh cutting device according to any one of claims 2-7, characterized in that, Includes the following steps: S1. Material conveying: Place the metal mesh to be cut one by one on the conveyor belt (4) and use the conveyor belt (4) to convey them one by one to the cutting mechanism; S2, Support Positioning: When the metal mesh is conveyed to the bottom of the cutting mechanism, the conveyor belt (4) stops conveying and the telescopic component (10) drives the hollow plate (6) to move upward, so that the insertion tube (11) passes through the hole a (401) and lifts up the metal mesh for support. The metal mesh presses down on the insertion tube (11) under its own gravity, so that the dense insertion tube (11) can adapt to the shape of the metal mesh. Then, the pump body (14) draws out the air in the hollow plate (6), so that the insertion tube (11) generates suction force to stably support the metal mesh of different shapes. S3, Laser cutting: The cutting mechanism is used to cut the metal mesh with laser. During the cutting process, the suction generated by the tube (11) can remove the harmful gas generated during the cutting process. The tube (11) can also block the mesh holes of the metal mesh. The laser will not penetrate the mesh holes and will not cause the phenomenon of dry hitting, burning the table surface and defocusing. S4. Automatic unloading and self-cleaning: After cutting, the telescopic component (10) drives the hollow plate (6) to descend, causing the insertion tube (11) to move down and separate from the hole a (401). The inner wall of the hole a (401) will scrape off the slag on the surface of the insertion tube (11). The scraped slag will fall onto the conveyor belt (4). The cut metal mesh falls onto the conveyor belt (4). As the conveyor belt (4) is conveyed, the slag, the cut metal mesh and the scrap are all conveyed to the end of the conveyor belt (4) and fall off. The staff will recycle the cut metal mesh.

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