Adjustable automobile dust screen die-cutting device

Abstract

The application discloses an adjustable automobile dustproof net die-cutting device, and belongs to the technical field of automobile part processing. In order to solve the problems that a cutting knife of the automobile dustproof net die-cuting device is easy to cause damage to a conveying belt during cutting, finished product discharging and collecting after cutting are dependent on manual work or simple mechanisms, the degree of automation is low, and a collecting container needs to be frequently replaced, the application comprises the following: a mounting box and a mounting frame fixedly arranged at the middle part of the top surface of the mounting box, a first driving assembly is arranged at the bottom of the upper end of the mounting frame, and a cutting knife assembly is fixedly arranged at the output end of the first driving assembly. In the process that the cutting knife in the frame type cuts automobile dustproof net raw materials, the pushing and tightening block realizes the pressing and flattening of the automobile dustproof net raw materials, wrinkles of the automobile dustproof net raw materials are prevented, and the cutting product quality is improved. After cutting is completed, the pushing and tightening block continuously extrudes the automobile dustproof net after cutting, so that the automobile dustproof net after cutting can be completely separated from the automobile dustproof net waste part.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, specifically to an adjustable automotive dustproof net die-cutting device. Background Technology

[0002] In the production of automotive dustproof nets, die-cutting is a key process, which requires cutting the raw dustproof net material into finished products that meet specifications.

[0003] Currently, most automotive dustproof net die-cutting devices on the market use conveyor belts to transport raw materials. During cutting, the cutter can easily damage the conveyor belt, affecting the service life of the equipment and the continuity of processing. In addition, the unloading and collection of the cut finished products mostly rely on manual labor or simple mechanisms, with low automation. This not only increases the labor intensity of operators, but also causes problems such as uneven collection of finished products and frequent replacement of collection containers, resulting in limited production efficiency.

[0004] To address the above issues, an adjustable automotive dustproof net die-cutting device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable automotive dustproof net die-cutting device. By using this device, the problems of automotive dustproof net die-cutting devices mentioned above, such as the cutter easily damaging the conveyor belt during cutting, the finished product unloading and collection relying on manual labor or simple mechanisms, low automation, and frequent replacement of collection containers, are solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable automotive dustproof net die-cutting device, comprising a mounting box and a mounting frame fixedly mounted at the center of the top surface of the mounting box. A first drive assembly is mounted at the bottom of the upper end of the mounting frame. An electric winding roller and an electric unwinding roller are respectively mounted on the top two sides of the mounting box, and a pressure roller is also respectively mounted on the top two sides of the mounting box. A cutter assembly is fixedly mounted at the output end of the first drive assembly. A second drive assembly is respectively mounted on the bottom surfaces of both ends of the inner cavity of the mounting box, and a forward and reverse motor is fixedly mounted on the outer wall of the second drive assembly at one end. A rotating circulation roller is rotatably connected between the second drive assemblies, and a plurality of cutting bases are evenly and side by side fixedly mounted on the outer wall of the rotating circulation roller. Extension plates are fixedly mounted on the outer walls of the lower two sides of the mounting box, and a sliding drawer is slidably mounted on the bottom surface of the inner cavity of the mounting box, and a collection box is installed in the sliding drawer. Protective frames are fixedly mounted on the lower outer walls of both sides of the mounting box.

[0007] Furthermore, a top opening is provided at the center of the top surface of the mounting box, and concave openings are provided on the two outer walls at the lower end of the mounting box.

[0008] Furthermore, the mounting bracket includes a base plate and a concave bracket fixedly mounted on the top surface of the base plate, and a bottom opening is provided in the middle of the base plate, which is located directly above the top opening.

[0009] Furthermore, the first drive assembly includes a first drive electric cylinder and first telescopic rods respectively disposed at both ends of the first drive electric cylinder. The first drive electric cylinder is fixedly installed on the upper bottom surface of the concave frame. A cutter assembly is fixedly installed at the output end of the first drive electric cylinder. The upper ends of the first telescopic rods are respectively fixedly installed on the bottom surfaces of both ends of the upper end of the concave frame, and the lower ends of the first telescopic rods are respectively fixedly installed on the top surface of the cutter assembly.

[0010] Furthermore, the cutting assembly includes a horizontal plate and square-shaped cutting blades that are evenly and side by side fixedly installed on the bottom surface of the horizontal plate. The square-shaped cutting blades are respectively set to the cutting base. A number of connecting sleeves are evenly and fixedly installed on the bottom surface of the horizontal plate. The connecting sleeves are respectively set in the inner cavity of the square-shaped cutting blades. A push-tightening block is elastically slidably installed at the bottom opening of the connecting sleeve through a connecting spring.

[0011] Furthermore, the second drive assembly includes a second drive electric cylinder and a rotating connecting block fixedly installed on the output end of the second drive electric cylinder. The second drive electric cylinder is fixedly installed on the bottom surface of the inner cavity of the mounting box. Second telescopic rods are also provided on both sides of the second drive electric cylinder, and the second telescopic rods are fixedly installed on the bottom surface of the inner cavity of the mounting box. The upper ends of the second telescopic rods are fixedly installed on the bottom surface of the rotating connecting block.

[0012] Furthermore, the rotating circulating roller includes a central rotating shaft and an annular roller sleeved on the outer periphery of the central rotating shaft, and the annular roller is fixedly installed on the central rotating shaft by a connecting bracket, and a cutting groove is provided on the outer periphery of the top surface of the cutting base.

[0013] Furthermore, the sliding drawer includes a drawer body and a three-way slide groove located in the middle of the bottom surface of the drawer body. Restricting balls are respectively provided at both ends of the middle of the inner cavity of the three-way slide groove. Retraction slide grooves are respectively provided on the inner walls of both ends of the inner cavity of the sliding drawer. A clamping block is elastically slidably installed at the inner opening of the inner cavity of the resonance slide groove by means of a return spring.

[0014] Furthermore, the extension plate includes a plate body and support feet respectively fixedly installed at both ends of the bottom surface of the plate body. A protruding strip is fixedly installed on the bottom surface of the inner cavity of the mounting box, and both ends of the protruding strip extend to the plate body. A connecting arc-shaped groove is provided on the outer wall of both ends of the protruding strip, and the ball bearings are respectively set in the connecting arc-shaped groove.

[0015] Furthermore, driven components are fixedly installed on the top surfaces of both ends of the sliding drawer. The driven components include a connecting plate and a rack fixedly installed on the top of the connecting plate. Drive discs are fixedly installed on the outer walls of both ends of the central shaft, and toothed blocks are fixedly installed on the outer walls of the drive discs.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. During the process of cutting the automotive dustproof net material with the square-shaped cutter, the pressing block compresses and flattens the automotive dustproof net material, preventing wrinkles and improving the quality of the cut product.

[0017] 2. After cutting is completed, the pusher block will continue to squeeze the cut-off car dustproof net, ensuring that the cut-off car dustproof net can be completely separated from the waste part of the car dustproof net.

[0018] 3. After the cutting step of the cutter assembly is completed, the circulating roller is rotated so that the cut car dust net will fall down the cutting base into the collection box for collection. At the same time, the next set of cutting bases will move directly under the cutter assembly to perform the next cutting operation. The structure is cleverly designed to automatically unload and collect the cut car dust net. The whole process is seamless and highly automated.

[0019] 4. By setting up the drive disc, toothed block and rack, the annular roller will push the sliding drawer and collection box a short distance with each rotation, so that the cut car dust net can be evenly laid in the collection box, reducing the frequency of collection box replacement and improving the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first driving component of the present invention; Figure 3 This is a partial disassembled structural diagram of the cutter assembly of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the mounting box structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B; Figure 7 This is a schematic diagram of the connection structure between the rotating circulating roller and the second drive assembly of the present invention; Figure 8 This is a schematic diagram of the rotating circulating roller structure of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the collection box and sliding drawer of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of point C; Figure 11 This is a schematic diagram of the bottom structure of the sliding drawer of the present invention.

[0021] In the diagram: 1. Mounting housing; 11. Top opening; 12. Recessed opening; 2. Mounting bracket; 21. Base plate; 22. Recessed bracket; 23. Bottom opening; 3. First drive assembly; 31. First drive cylinder; 32. First telescopic rod; 4. Cutting blade assembly; 41. Horizontal plate; 42. Square-shaped cutter; 43. Connecting sleeve; 44. Pushing block; 45. Connecting spring; 5. Second drive assembly; 51. Second drive cylinder; 52. Second telescopic rod; 53. Rotating connecting block; 6. Forward and reverse motor; 7. Rotating circulating roller; 71. Central shaft; 72. Circular roller; 7 3. Connecting bracket; 74. Drive disc; 75. Toothed block; 8. Cutting base; 81. Cutting groove; 9. Sliding drawer; 91. Drawer body; 92. Three-way slide; 93. Restricting ball; 94. Retracting slide; 95. Pressing block; 96. Return spring; 10. Protective frame; 20. Electric winding roller; 30. Electric unwinding roller; 40. Pressing roller; 50. Extension plate; 501. Plate body; 502. Support foot; 503. Raised strip; 504. Connecting arc groove; 60. Collection box; 70. Driven assembly; 701. Connecting plate; 702. Toothed rack. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 and Figure 2An adjustable automotive dustproof net die-cutting device includes a mounting box 1 and a mounting frame 2 fixedly mounted at the center of the top surface of the mounting box 1. A first drive assembly 3 is mounted on the bottom of the upper end of the mounting frame 2. An electric take-up roller 20 and an electric unwind roller 30 are respectively mounted on the two sides of the top of the mounting box 1 for taking up and unwinding the automotive dustproof net material. This is prior art and will not be described in detail here. Pressure rollers 40 are also respectively mounted on the two sides of the top of the mounting box 1, and the pressure rollers 40 are respectively located inside the electric take-up roller 20 and the electric unwind roller 30. The pressure rollers 40 are used to press the automotive dustproof net material onto the top surface of the mounting box 1 to prevent wrinkles in the automotive dustproof net, and also facilitate cutting by the cutting assembly 4. The output end of the first drive assembly 3 is fixedly mounted with the cutting assembly 4, and the first drive assembly 3 drives the cutting assembly 4 to perform vertical linear motion. The bottom of both ends of the inner cavity of the mounting box 1... A second drive assembly 5 is installed on each of the two sides of the mounting box 1. A forward and reverse motor 6 is fixedly installed on the outer wall of the second drive assembly 5 at one end. A rotating circulation roller 7 is rotatably connected between the two drive assemblies 5. The output end of the forward and reverse motor 6 is fixedly installed on the rotating circulation roller 7. Several cutting bases 8 are evenly and side by side fixedly installed on the outer wall of the rotating circulation roller 7. Each row of cutting bases 8 is set to the cutting blade assembly 4 when it moves to the top. The top surface of the cutting base 8 is set with arc-shaped surfaces on both sides to prevent the cutting base 8 from damaging the car dustproof net due to the corners when it rotates to the cutting position of the car dustproof net. Extension plates 50 are fixedly installed on the outer walls of the lower two sides of the mounting box 1. A sliding drawer 9 is slidably installed on the bottom surface of the inner cavity of the mounting box 1. A collection box 60 is installed in the sliding drawer 9 for collecting the cut car dustproof net. Protective frames 10 are fixedly installed on the lower outer walls of both sides of the mounting box 1.

[0024] Please see Figures 1-4 The mounting box 1 has a top opening 11 at the center of its top surface and concave openings 12 on the outer walls of both sides at the bottom of the mounting box 1. The mounting frame 2 includes a base plate 21 and a concave frame 22 fixedly mounted on the top surface of the base plate 21. The base plate 21 has a bottom opening 23 at the center and is located directly above the top opening 11. The first drive assembly 3 includes a first drive cylinder 31 and first telescopic rods 32 respectively located at both ends of the first drive cylinder 31. The first drive cylinder 31 is fixedly mounted on the bottom surface of the upper end of the concave frame 22. A cutter assembly 4 is fixedly mounted at the output end of the first drive cylinder 31. The upper ends of the first telescopic rods 32 are fixedly mounted on the bottom surfaces of both ends of the upper end of the concave frame 22, and the lower ends of the first telescopic rods 32 are fixedly mounted on the top surface of the cutter assembly 4.

[0025] Please see Figure 1 and Figure 4The cutting assembly 4 includes a horizontal plate 41 and square-shaped cutters 42 that are evenly and side-by-side fixedly installed on the bottom surface of the horizontal plate 41. The horizontal plate 41 is connected to the first telescopic rods 32 at both ends of the first drive electric cylinder 31 by screws, which can be detached and installed to facilitate the operator to change the square-shaped cutters 42 of different sizes according to the cutting size of the car dustproof net. The square-shaped cutters 42 are respectively set to the cutting base 8. Several connecting sleeves 43 are evenly fixedly installed on the bottom surface of the horizontal plate 41, and the connecting sleeves 43 are respectively set in the inner cavity of the square-shaped cutters 42. The bottom opening of the connecting sleeve 43 is elastically slidably installed with a pusher block 44 through a connecting spring 45. The four sides of the bottom of the pusher block 44 are all set with arc surfaces to prevent the pusher block 44 from damaging the car dustproof net material during the pressing process.

[0026] Specifically, the automotive dustproof net material is unwound by the electric unwinding roller 30 and wound up by the electric winding roller 20. The automotive dustproof net material is pressed against the top of the mounting box 1 by the pressure roller 40. At this time, the automotive dustproof net material to be cut will be placed on the top of the cutting base 8. Then, the first drive cylinder 31 is activated, which drives the horizontal plate 41 to move downward until the sharp end of the square cutter 42 is inserted into the cutting groove 81 to cut the automotive dustproof net material. Furthermore, during the process of the square-shaped cutter 42 cutting the automotive dustproof net material, the pressing block 44 will first press against the automotive dustproof net material to achieve pressing and flattening of the automotive dustproof net material, prevent wrinkles in the automotive dustproof net material and improve the quality of the cut product. After the cutting is completed, the second drive component 5 will drive the rotating circulating roller 7 and the cutting base 8 to move down as a whole. The cutting base 8 will then drive the cut automotive dustproof net to move down, thereby separating it from the automotive dustproof net waste part. During this process, since the position of the cutter component 4 remains unchanged, under the elastic force of the connecting spring 45, the pressing block 44 will continue to squeeze the cut automotive dustproof net, ensuring that the cut automotive dustproof net can be completely separated from the automotive dustproof net waste part.

[0027] Please see Figure 3 , Figure 7 and Figure 8The second drive assembly 5 includes a second drive electric cylinder 51 and a rotating connecting block 53 fixedly installed on the output end of the second drive electric cylinder 51. The second drive electric cylinder 51 is fixedly installed on the bottom surface of the inner cavity of the mounting housing 1. Second telescopic rods 52 are respectively provided on both sides of the second drive electric cylinder 51, and the second telescopic rods 52 are respectively fixedly installed on the bottom surface of the inner cavity of the mounting housing 1. The upper ends of the second telescopic rods 52 are respectively fixedly installed on the bottom surface of the rotating connecting block 53. The forward and reverse motor 6 is fixedly installed on the outer wall of the rotating connecting block 53 located at one end. The rotating circulating roller 7 includes a central rotating shaft 71 and an annular roller 72 sleeved on the outer circumference of the central rotating shaft 71. The annular roller 72 is fixedly installed on the central rotating shaft 71 through a connecting bracket 73. Several transverse planes are evenly arranged on the outer circumference of the annular roller 72. All are set parallel to the tangent of the annular roller 72. The cutting bases 8 are fixedly installed side by side on the transverse plane of the annular roller 72, so that the cutting base 8 can be in a horizontal state when it is moved to the uppermost point of the annular roller 72. When the rotating circulating roller 7 is moved to the highest point, the top of the cutting base 8 is slightly raised above the upper opening of the bottom passage 23, so that the cutting base 8 can slightly lift the raw material of the car dustproof net at the cutting point, thereby achieving a tight effect and improving the cutting quality. The outer periphery of the top surface of the cutting base 8 is provided with a cutting groove 81. The cutting groove 81 can be used for the sharp end of the square cutter 42 to be inserted, thereby ensuring the cutting effect. At the same time, after the inner side of the sharp end of the square cutter 42 is inserted into the cutting groove 81, it is set to fit the inner wall of the cutting groove 81, thereby improving the cutting effect.

[0028] Specifically, after the cutting step of the cutter assembly 4 is completed, it will move upward and reset under the drive of the first drive cylinder 31. Then, the forward and reverse motors 6 drive the rotating circulating roller 7 to rotate, causing the cutting base 8 to gradually tilt. The cut car dust net will fall down the cutting base 8 into the collection box 60 for collection. During this process, the next set of cutting bases 8 will move directly below the cutter assembly 4 to perform the next cutting operation. The structure is ingeniously designed, which not only solves the problem of damage to the conveyor belt caused by the square cutter 42 during the conveyor belt transportation of car dust net raw materials, but also enables the automatic unloading and collection of the cut car dust net. The whole process is completed in one go and has a high degree of automation.

[0029] Please see Figures 9-11The sliding drawer 9 includes a drawer body 91 and a three-way slide groove 92 located in the middle of the bottom surface of the drawer body 91. Restricting balls 93 are respectively provided at both ends of the middle of the inner cavity of the three-way slide groove 92. Retraction slide grooves 94 are respectively provided on the inner walls of both ends of the inner cavity of the sliding drawer 9. A pressing block 95 is elastically slidably installed at the inner opening of the inner cavity of the inner slide groove 94 by a return spring 96. The inner front end of the pressing block 95 is inclined, thereby ensuring that the operator can smoothly push the collection box 60 into the inner cavity of the sliding drawer 9 and press the collection box 60 into the sliding drawer 9 by the pressing block 95.

[0030] Please see Figure 5 and Figure 6 The extension plate 50 includes a plate body 501 and support feet 502 fixedly installed at both ends of the bottom surface of the plate body 501. The support feet 502 are used to support the plate body 501 and prevent the plate body 501 from breaking. A protruding strip 503 is fixedly installed on the bottom surface of the inner cavity of the mounting box 1, and the two ends of the protruding strip 503 extend to the plate body 501 respectively. A connecting arc groove 504 is provided on the outer wall of both ends of the protruding strip 503, and the ball bearings 93 are respectively rolled in the connecting arc groove 504. This arrangement not only restricts the sliding drawer 9 to slide on the protruding strip 503, but also reduces the sliding friction and sliding wear of the sliding drawer 9 on the protruding strip 503, reducing resistance and improving service life.

[0031] Please see Figures 7-11 A driven component 70 is fixedly installed on the top surface of both ends of the sliding drawer 9. The driven component 70 includes a connecting plate 701 and a rack 702 fixedly installed on the top of the connecting plate 701. A drive disc 74 is fixedly installed on the outer wall of both ends of the rotating shaft 71, and a toothed block 75 is fixedly installed on the outer wall of the drive disc 74. When the rotating circulating roller 7 is set to move to the lowest point, the toothed block 75 can mesh with the rack 702.

[0032] Specifically, when the forward and reverse motor 6 drives the rotating circulating roller 7 to rotate, the central shaft 71 drives the drive disk 74 to rotate together, causing the toothed block 75 to rotate along with the drive disk 74. During this process, the toothed block 75 will continuously approach the rack 702, repeating the above steps until the toothed block 75 meshes with the rack 702. The toothed block 75 will then drive the rack 702 to move forward, and the rack 702 will drive the sliding drawer 9 to move forward through the connecting plate 701. This means that every time the annular roller 72 rotates, it will push the sliding drawer 9 and the collection box 60 to move a small distance, so that the cut car dustproof net can be evenly laid in the collection box 60, reducing the frequency of replacing the collection box 60 and improving the user experience.

[0033] Furthermore, when the tail end of the collection box 60 moves to the lower edge of the rotating circulation roller 7, the cutting of the automotive dustproof net is paused, and the forward and reverse motors 6 will continue to start. Through the meshing action between the toothed block 75 and the rack 702, the sliding drawer 9 and the collection box 60 continue to slide forward until the tail end of the collection box 60 moves to the lower edge of the other side of the rotating circulation roller 7. Then, the forward and reverse motors 6 are started in reverse. Through the meshing action between the toothed block 75 and the rack 702, the sliding drawer 9 and the collection box 60 can be pushed backward to continue sliding, thereby continuing the material collection operation. This ensures that the cut automotive dustproof net can be further collected in the collection box 60, further reducing the replacement frequency of the collection box 60.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable automotive dustproof net die-cutting device, comprising a mounting box (1) and a mounting frame (2) fixedly mounted at the center of the top surface of the mounting box (1), wherein a first drive assembly (3) is mounted at the bottom of the upper end of the mounting frame (2), an electric take-up roller (20) and an electric unwind roller (30) are respectively mounted on the top two sides of the mounting box (1), and a pressure roller (40) is also respectively mounted on the top two sides of the mounting box (1), characterized in that: A cutter assembly (4) is fixedly installed at the output end of the first drive assembly (3). A second drive assembly (5) is installed on the bottom surface of both ends of the inner cavity of the mounting box (1). A forward and reverse motor (6) is fixedly installed on the outer wall of the second drive assembly (5) at one end. A rotating circulation roller (7) is rotatably connected between the second drive assemblies (5). Several cutting bases (8) are evenly and side by side fixedly installed on the outer wall of the outer periphery of the rotating circulation roller (7). An extension plate (50) is fixedly installed on the outer walls of both sides of the lower end of the mounting box (1). A sliding drawer (9) is slidably installed on the bottom surface of the inner cavity of the mounting box (1). A collection box (60) is installed in the sliding drawer (9). A protective frame (10) is fixedly installed on the outer walls of both lower ends of the mounting box (1).

2. The adjustable automotive dustproof net die-cutting device according to claim 1, characterized in that: The mounting box (1) has a top opening (11) at the middle of its top surface, and concave openings (12) are provided on the outer walls of both sides at the lower end of the mounting box (1).

3. The adjustable automotive dustproof net die-cutting device according to claim 2, characterized in that: The mounting bracket (2) includes a base plate (21) and a concave bracket (22) fixedly mounted on the top surface of the base plate (21). A bottom opening (23) is provided in the middle of the base plate (21), and the bottom opening (23) is located directly above the top opening (11).

4. The adjustable automotive dustproof net die-cutting device according to claim 3, characterized in that: The first drive assembly (3) includes a first drive electric cylinder (31) and a first telescopic rod (32) respectively disposed at both ends of the first drive electric cylinder (31). The first drive electric cylinder (31) is fixedly installed on the upper bottom surface of the concave frame (22). A cutter assembly (4) is fixedly installed at the output end of the first drive electric cylinder (31). The upper ends of the first telescopic rod (32) are respectively fixedly installed on the bottom surfaces of both ends of the upper end of the concave frame (22), and the lower ends of the first telescopic rod (32) are respectively fixedly installed on the top surface of the cutter assembly (4).

5. The adjustable automotive dustproof net die-cutting device according to claim 1, characterized in that: The cutter assembly (4) includes a horizontal plate (41) and square cutters (42) that are uniformly and fixedly installed on the bottom surface of the horizontal plate (41). The square cutters (42) are respectively set to the cutting base (8). A number of connecting sleeves (43) are uniformly and fixedly installed on the bottom surface of the horizontal plate (41). The connecting sleeves (43) are respectively set in the inner cavity of the square cutter (42). A pusher block (44) is elastically slidably installed at the bottom opening of the connecting sleeve (43) through a connecting spring (45).

6. The adjustable automotive dustproof net die-cutting device according to claim 1, characterized in that: The second drive assembly (5) includes a second drive electric cylinder (51) and a rotating connecting block (53) fixedly installed on the output end of the second drive electric cylinder (51). The second drive electric cylinder (51) is fixedly installed on the bottom surface of the inner cavity of the mounting box (1). The two sides of the second drive electric cylinder (51) are respectively provided with second telescopic rods (52), and the second telescopic rods (52) are respectively fixedly installed on the bottom surface of the inner cavity of the mounting box (1). The upper ends of the second telescopic rods (52) are respectively fixedly installed on the bottom surface of the rotating connecting block (53).

7. The adjustable automotive dustproof net die-cutting device according to claim 1, characterized in that: The rotating circulating roller (7) includes a central rotating shaft (71) and an annular roller (72) sleeved on the outer periphery of the central rotating shaft (71), and the annular roller (72) is fixedly installed on the central rotating shaft (71) by a connecting bracket (73); A cutting groove (81) is provided on the outer periphery of the top surface of the cutting base (8).

8. The adjustable automotive dustproof net die-cutting device according to claim 1, characterized in that: The sliding drawer (9) includes a drawer body (91) and a three-way slide groove (92) located in the middle of the bottom surface of the drawer body (91). Restricting balls (93) are respectively provided at both ends of the inner cavity of the three-way slide groove (92). Retraction slide grooves (94) are respectively provided on the inner walls of both ends of the inner cavity of the sliding drawer (9). A pressing block (95) is elastically slidably installed at the inner opening of the inner cavity of the resonance slide groove (94) by means of a return spring (96).

9. An adjustable automotive dustproof net die-cutting device according to claim 8, characterized in that: The extension plate (50) includes a plate body (501) and support feet (502) fixedly installed at both ends of the bottom surface of the plate body (501). A protruding strip (503) is fixedly installed on the bottom surface of the inner cavity of the mounting box (1), and the two ends of the protruding strip (503) extend to the plate body (501). A connecting arc groove (504) is provided on the outer wall of both ends of the protruding strip (503), and the limiting ball (93) is rolled in the connecting arc groove (504).

10. An adjustable automotive dustproof net die-cutting device according to claim 7, characterized in that: The sliding drawer (9) has driven components (70) fixedly installed on the top surfaces of both ends respectively. The driven components (70) include a connecting plate (701) and a rack (702) fixedly installed on the top of the connecting plate (701). Drive discs (74) are fixedly installed on the outer walls of both ends of the central shaft (71), and toothed blocks (75) are fixedly installed on the outer walls of the drive discs (74).

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