A cutting device for processing sand paper base paper

Abstract

This utility model discloses a cutting device for processing sandpaper base paper, including a cutting panel. A support frame is fixedly connected to the bottom of the cutting panel. A limit mechanism is fixedly connected inside the support frame. A roller frame is fixedly connected to one side of the cutting panel and the support frame. A support base is fixedly connected to the bottom of the support frame. A support plate is fixedly connected inside the support frame. A controller is fixedly connected to the bottom of the support plate. Telescopic rods are fixedly connected to the top of the support plate. A top plate is fixedly connected to the top of the four telescopic rods. A pitch-changing mechanism is fixedly connected to the bottom of the top plate. Several cutting machines are fixedly connected to the bottom of the pitch-changing mechanism. A cutting machine is fixedly connected to the top of the cutting panel. This utility model effectively prevents the base paper from shifting during conveying and cutting, ensuring cutting quality. At the same time, it flexibly adjusts the cutting width, can quickly respond to different specification requirements, eliminates the need for cumbersome manual operation, and greatly improves the equipment's adaptability to diverse products.

Description

Technical Field

[0001] This utility model relates to the field of sandpaper base paper cutting technology, and in particular to a cutting device for sandpaper base paper processing. Background Technology

[0002] In the sandpaper production industry, the cutting of sandpaper base paper is a crucial process, and its quality and efficiency directly affect the final quality of sandpaper products and the production efficiency of enterprises. Traditional sandpaper base paper cutting equipment has many drawbacks. On the one hand, the conveying system is simply designed and cannot stably provide continuous and uniform conveying power when facing sandpaper base paper of different thicknesses and materials. This causes the base paper to frequently slip and deviate during the conveying process, which seriously affects the cutting accuracy and leads to a large number of defective products. On the other hand, adjusting the cutting width often requires a lot of time for manual operation, such as changing specific blades or manually adjusting complex mechanical structures. This is not only inefficient, but also difficult to meet the current market's rapid demand for diverse sandpaper specifications. At the same time, the base paper lacks effective limiting measures during the conveying process. Due to the varying widths of the base paper, it is difficult to accurately limit the position, which further reduces the cutting quality. In view of these problems, it is urgent to develop a high-efficiency, accurate cutting equipment for sandpaper base paper processing that can flexibly adapt to various specifications.

[0003] The existing equipment lacks a flexible and adaptive drive structure, which makes the raw paper slip and shift. When adjusting the cutting width, it requires cumbersome manual operation, cannot quickly adapt to various specifications, has poor overall coordination, and the raw paper is prone to displacement during transport. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cutting device for processing sandpaper base paper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting device for processing sandpaper base paper includes a cutting panel, a support frame fixedly connected to the bottom of the cutting panel, a limit mechanism fixedly connected inside the support frame, a roller frame fixedly connected to one side of the cutting panel and the support frame, a support base fixedly connected around the bottom of the support frame, and a support plate fixedly connected inside the support frame.

[0007] A controller is fixedly connected to the bottom of the support plate, and telescopic rods are fixedly connected to the top four sides of the support plate. A top plate is fixedly connected to the top of the four telescopic rods, and a pitch-changing mechanism is fixedly connected to the bottom of the top plate. Several cutting machines are fixedly connected to the bottom of the pitch-changing mechanism, and a cutting machine is fixedly connected to the top of the cutting panel. Several slots are opened on the top of the cutting panel, and a drive mechanism is fixedly connected to the bottom of the top plate.

[0008] The driving mechanism includes a side plate, a driving roller, a fixed frame, a pressure spring, a round rod, a limiting cylinder, an auxiliary roller, and a connecting plate. Two round rods are fixedly connected to the bottom of the top plate, two pressure springs are fixedly connected to the bottom of the top plate, and two round rods are movably connected inside the two pressure springs. Two fixed frames are fixedly connected to the bottom of the two pressure springs.

[0009] The two limiting cylinders are respectively fixedly connected to the inner top of the fixed frame, and the limiting cylinders pass through the fixed frame. The two round rods are respectively movably connected to the inside of the two limiting cylinders. The connecting plate is fixedly connected to the bottom of the two limiting cylinders and the two fixed frames. The two side plates are respectively fixedly connected to the two sides of the connecting plate. The driving roller is movably connected to the opposite inner side of the two side plates. The auxiliary roller is movably connected to the opposite inner side of the two side plates.

[0010] The pitch-changing mechanism includes a push plate, a protective frame, a rectangular frame, a moving block, a telescopic limiting tube, a telescopic spring, a snap-fit ​​strip, a gear rod, a bidirectional motor, and a limiting frame. The protective frame is fixedly connected to the bottom of the top plate. Slide grooves are provided on the inner walls of both sides and the top of the inner wall of the protective frame. Two push plates are movably connected to the inside of the protective frame. Two rectangular frames are fixedly connected to the opposite inner sides of the two push plates. A slider is provided on the top of the rectangular frame.

[0011] The rectangular frame is movably connected to the inside of the protective frame. Five movable blocks are slidably connected to the inside of the protective frame, and sliders are provided on both sides of each movable block. Five cutting machines are fixedly connected to the bottom of the five movable blocks. Two movable blocks are fixedly connected to the opposite inner sides of two push plates. Telescopic limiting tubes are fixedly connected to the opposite inner sides of two movable blocks. Telescopic springs are fixedly connected to the opposite inner sides of two movable blocks, and the telescopic limiting tubes are movably connected to the inside of the telescopic springs.

[0012] The two limiting frames are fixedly connected to the inner walls of the two sides of the protective frame, the bidirectional motor is fixedly connected to the opposite inner sides of the two limiting frames, and the output ends of the bidirectional motor pass through the two limiting frames respectively. The two gear rods are fixedly connected to one side of the output ends of the bidirectional motor respectively. The four locking strips are movably connected to the two sides of the two gear rods respectively, and the tooth block on one side of the locking strip meshes with the four pieces of the gear rod around the four sides. The four locking strips are fixedly connected to one side of the two rectangular frames respectively, and the locking strips are movably connected inside the limiting frame.

[0013] The limiting mechanism includes a limiting strip, a movable block, a toothed strip, a limiting frame, a threaded rod, a fixed block, a disc rotating rod, and a connecting strip. The two fixed blocks are fixedly connected to the inside of the cutting panel, the threaded rod is movably connected to the opposite inner sides of the two fixed blocks, and the two toothed strips are movably connected to both sides of the threaded rod.

[0014] The toothed blocks on one side of the toothed joint are engaged with the threads around the threaded rod. The limiting frame is fixedly connected to the inside of the cutting panel, and the two toothed joints are movably connected to the inside of the limiting frame. Two movable blocks are fixedly connected to one side of the two toothed joints respectively. An opening is provided on one side of the movable block. Two rotating disc rods are movably connected to the inside of the two movable blocks respectively, and the two ends of the threaded rod are fixedly connected to the opposite inner sides of the two rotating disc rods respectively.

[0015] The four connecting strips are fixedly connected to one side of the two movable blocks, and the top of the support frame has four openings. The connecting strips are movably connected inside the openings of the support frame. The limiting strip is fixedly connected to the top of the two connecting strips, and the limiting strip is movably connected to the top of the support frame.

[0016] Compared with the prior art, this utility model provides a cutting device for processing sandpaper base paper, which has the following beneficial effects:

[0017] 1. This cutting equipment for processing sandpaper base paper involves a top plate driving the drive mechanism to descend as a whole, compressing the pressure spring, and bringing the drive roller and auxiliary roller into contact with the sandpaper base paper. The drive roller rotates under power, driving the sandpaper base paper forward. The auxiliary roller provides auxiliary support and guidance, and the pressure spring provides a certain pressure to ensure sufficient friction between the drive roller and the sandpaper base paper. This ensures stable conveying of the sandpaper base paper, avoids slippage and deviation during conveying, and improves the continuity and stability of sandpaper base paper processing.

[0018] 2. This cutting equipment for processing sandpaper base paper, by starting a bidirectional motor, drives the gear rods on both sides to rotate. The toothed blocks on one side of the clamping strip mesh with the toothed blocks around the gear rod. The rotation of the gear rod drives the clamping strip to move horizontally. The clamping strip drives the rectangular frame and the push plate to move, which in turn causes the moving block connected to the push plate and the cutting machine fixed at the bottom of the moving block to move. The telescopic limit tube and telescopic spring between the moving blocks play a limiting and buffering role. Thus, the spacing between the five cutting machines can be flexibly adjusted to meet the cutting needs of sandpaper base paper of different specifications, improving the versatility and cutting accuracy of the equipment.

[0019] 3. This cutting equipment for processing sandpaper base paper rotates by rotating a disc rotating rod, which drives the threaded screw to rotate. The toothed blocks on one side of the toothed strip mesh with the threads around the threaded screw. The rotation of the threaded screw causes the toothed strips on both sides to move in opposite or the same direction along the limiting frame. The toothed strips drive the limiting strips to move on the top of the support frame through the movable block and connecting strip, thereby adjusting the distance between the two limiting strips. Thus, it can limit the width of the sandpaper base paper, prevent the sandpaper base paper from shifting during transportation, ensure the accuracy of the cutting position, and improve the cutting quality.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0021] Figure 1 This is a front view of a cutting device for processing sandpaper base paper according to the present invention.

[0022] Figure 2 This utility model presents a structural diagram of the drive mechanism of a cutting device for processing sandpaper base paper.

[0023] Figure 3 This utility model presents a structural diagram of a variable-pitch mechanism for a cutting device used in sandpaper base paper processing.

[0024] Figure 4 This is a detailed drawing of the variable pitch mechanism of a cutting device for processing sandpaper base paper, as proposed in this utility model.

[0025] Figure 5 This is a cross-sectional view of the variable pitch mechanism of a cutting device for processing sandpaper base paper proposed in this utility model.

[0026] Figure 6 This is an enlarged view of the limiting mechanism of a cutting device for processing sandpaper base paper according to the present invention.

[0027] In the diagram: 1. Cutting panel; 2. Drive mechanism; 3. Top plate; 4. Pitch-changing mechanism; 5. Cutting machine; 6. Telescopic rod; 7. Support plate; 8. Controller; 9. Limiting mechanism; 10. Support frame; 11. Support base; 12. Roller frame; 201. Side plate; 202. Drive roller; 203. Fixing frame; 204. Pressure spring; 205. Round rod; 206. Limiting cylinder; 207. Auxiliary roller; 208. Connecting plate; 40 1. Push plate; 402. Protective frame; 403. Rectangular frame; 404. Moving block; 405. Telescopic limit tube; 406. Telescopic spring; 407. Snap-fit ​​strip; 408. Gear rod; 409. Bidirectional motor; 410. Limit frame; 901. Limit strip; 902. Moving block; 903. Gear strip; 904. Limit bracket; 905. Threaded screw; 906. Fixed block; 907. Disc rotating rod; 908. Connecting strip. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] A cutting device for processing sandpaper base paper, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it includes a cutting panel 1, a support frame 10 is fixedly connected to the bottom of the cutting panel 1, a limiting mechanism 9 is fixedly connected inside the support frame 10, a roller frame 12 is fixedly connected to one side of the cutting panel 1 and the support frame 10, a support base 11 is fixedly connected to the bottom of the support frame 10, and a support plate 7 is fixedly connected inside the support frame 10.

[0032] A controller 8 is fixedly connected to the bottom of the support plate 7. Telescopic rods 6 are fixedly connected to the top of the support plate 7 around its four sides. A top plate 3 is fixedly connected to the top of the four telescopic rods 6. A pitch-changing mechanism 4 is fixedly connected to the bottom of the top plate 3. Several cutting machines 5 are fixedly connected to the bottom of the pitch-changing mechanism 4. A cutting machine 5 is fixedly connected to the top of the cutting panel 1. Several slots are opened on the top of the cutting panel 1. A drive mechanism 2 is fixedly connected to the bottom of the top plate 3. The controller 8 is model S7-1516-3.

[0033] During operation, the roll of sandpaper is inserted around the roller frame 12, and a section of the paper is pulled out and placed on the surface of the cutting panel 1. The controller 8 controls the pitch mechanism 4 to adjust the required cutting width. The limit mechanism 9 is manually adjusted according to the initial width of different paper. Then, the telescopic rod 6 drives the top plate 3 to move down, and the drive mechanism 2 contacts the surface of the paper and drives the pitch mechanism 4 and the cutter 5 to move downward and cut. This effectively prevents the paper from shifting during conveying and cutting, ensuring the cutting quality. At the same time, the cutting width can be flexibly adjusted, which can quickly respond to different specifications without cumbersome manual operation, greatly improving the equipment's adaptability to diverse products.

[0034] To ensure a stable supply of sandpaper base paper, such as Figure 2 As shown, the driving mechanism 2 includes a side plate 201, a driving roller 202, a fixing frame 203, a pressure spring 204, a round rod 205, a limiting cylinder 206, an auxiliary roller 207, and a connecting plate 208. The two round rods 205 are respectively fixedly connected to the bottom of the top plate 3, the two pressure springs 204 are fixedly connected to the bottom of the top plate 3, and the two round rods 205 are respectively movably connected inside the two pressure springs 204. The two fixing frames 203 are respectively fixedly connected to the bottom of the two pressure springs 204.

[0035] Two limiting cylinders 206 are fixedly connected to the inner top of the fixing frame 203, and the limiting cylinders 206 pass through the fixing frame 203. Two round rods 205 are movably connected to the inside of the two limiting cylinders 206. A connecting plate 208 is fixedly connected to the bottom of the two limiting cylinders 206 and the two fixing frames 203. Two side plates 201 are fixedly connected to the two sides of the connecting plate 208. A drive roller 202 is movably connected to the opposite inner side of the two side plates 201. An auxiliary roller 207 is movably connected to the opposite inner side of the two side plates 201.

[0036] During operation, the top plate 3 drives the drive mechanism 2 to descend as a whole, compressing the pressure spring 204. The drive roller 202 and the auxiliary roller 207 come into contact with the sandpaper base. The drive roller 202 rotates under the action of power, driving the sandpaper base forward. The auxiliary roller 207 plays a supporting and guiding role. The pressure spring 204 provides a certain pressure to ensure sufficient friction between the drive roller 202 and the sandpaper base. Thus, it can ensure the stable conveying of the sandpaper base and avoid slippage or deviation during the conveying process, thereby improving the continuity and stability of sandpaper base processing.

[0037] To ensure that the five cutting machines 5 can move and adjust their spacing flexibly, such as Figure 3 , Figure 4 and Figure 5As shown, the variable pitch mechanism 4 includes a push plate 401, a protective frame 402, a rectangular frame 403, a moving block 404, a telescopic limiting tube 405, a telescopic spring 406, a snap-fit ​​strip 407, a gear rod 408, a bidirectional motor 409, and a limiting frame 410. The protective frame 402 is fixedly connected to the bottom of the top plate 3. Slide grooves are respectively provided on the inner walls on both sides and the top of the inner wall of the protective frame 402. The two push plates 401 are movably connected to the inside of the protective frame 402. The two rectangular frames 403 are respectively fixedly connected to the opposite inner sides of the two push plates 401, and a slider is provided on the top of the rectangular frame 403.

[0038] A rectangular frame 403 is movably connected to the inside of a protective frame 402. Five movable blocks 404 are slidably connected to the inside of the protective frame 402, and sliders are provided on both sides of each movable block 404. Five cutting machines 5 are fixedly connected to the bottom of each of the five movable blocks 404. Two movable blocks 404 are fixedly connected to the opposite inner sides of two push plates 401. Telescopic limiting tubes 405 are fixedly connected to the opposite inner sides of two movable blocks 404. Telescopic springs 406 are fixedly connected to the opposite inner sides of two movable blocks 404, and the telescopic limiting tubes 405 are movably connected to the inside of the telescopic springs 406.

[0039] Two limiting frames 410 are fixedly connected to the inner walls of the two sides of the protective frame 402, and a bidirectional motor 409 is fixedly connected to the inner sides of the two limiting frames 410. The output ends of the bidirectional motor 409 pass through the two limiting frames 410. Two gear rods 408 are fixedly connected to one side of the output ends of the bidirectional motor 409. Four locking strips 407 are movably connected to the two sides of the two gear rods 408. The toothed blocks on one side of the locking strip 407 mesh with the four pieces of the gear rod 408. The four locking strips 407 are fixedly connected to one side of the two rectangular frames 403. The locking strips 407 are movably connected inside the limiting frame 410.

[0040] During operation, the bidirectional motor 409 is started, which drives the gear rods 408 on both sides to rotate. The toothed blocks on one side of the locking strip 407 mesh with the toothed blocks around the gear rod 408. The rotation of the gear rod 408 drives the locking strip 407 to move horizontally. The locking strip 407 drives the rectangular frame 403 and the push plate 401 to move, which in turn causes the moving block 404 connected to the push plate 401 and the cutting machine 5 fixed at the bottom of the moving block 404 to move. The telescopic limit tube 405 and the telescopic spring 406 between the moving blocks 404 play a limiting and buffering role. As a result, the spacing between the five cutting machines 5 can be flexibly adjusted to meet the cutting needs of sandpaper base paper of different specifications, and improve the versatility and cutting accuracy of the equipment.

[0041] To prevent the sandpaper from shifting during transport, such as Figure 6As shown, the limiting mechanism 9 includes a limiting strip 901, a movable block 902, a toothed strip 903, a limiting frame 904, a threaded screw 905, a fixed block 906, a disc rotating rod 907, and a connecting strip 908. The two fixed blocks 906 are fixedly connected to the inside of the cutting panel 1, the threaded screw 905 is movably connected to the opposite inner sides of the two fixed blocks 906, and the two toothed strips 903 are movably connected to both sides of the threaded screw 905.

[0042] Furthermore, the toothed blocks on one side of the toothed joint 903 are engaged with the threads around the threaded rod 905. The limiting frame 904 is fixedly connected to the inside of the cutting panel 1, and the two toothed joints 903 are movably connected to the inside of the limiting frame 904. The two movable blocks 902 are respectively fixedly connected to one side of the two toothed joints 903. An opening is provided on one side of the movable block 902. The two disc rotating rods 907 are respectively movably connected to the inside of the two movable blocks 902, and the two ends of the threaded rod 905 are respectively fixedly connected to the opposite inner sides of the two disc rotating rods 907.

[0043] Four connecting strips 908 are fixedly connected to one side of two movable blocks 902 respectively, and four openings are respectively provided on the top of the support frame 10. The connecting strips 908 are movably connected to the inside of the openings of the support frame 10. The limiting strip 901 is fixedly connected to the top of the two connecting strips 908, and the limiting strip 901 is movably connected to the top of the support frame 10.

[0044] During operation, rotating the disc rotating rod 907 drives the threaded screw 905 to rotate. The toothed blocks on one side of the toothed strip 903 mesh with the threads around the threaded screw 905. The rotation of the threaded screw 905 causes the toothed strips 903 on both sides to move in opposite or the same direction along the limiting frame 904. The toothed strips 903 drive the limiting strips 901 to move on the top of the support frame 10 through the movable block 902 and the connecting strip 908, thereby adjusting the distance between the two limiting strips 901. Thus, the width of the sandpaper base can be limited, preventing displacement of the sandpaper base during transportation, ensuring the accuracy of the cutting position, and improving the cutting quality.

[0045] Working principle: By inserting the roll of sandpaper into the roller frame 12, the paper is pulled out and placed on the surface of the cutting panel 1. By starting the bidirectional motor 409, the gear rods 408 on both sides are rotated. The toothed blocks on one side of the locking strip 407 mesh with the toothed blocks around the gear rod 408. The rotation of the gear rod 408 causes the locking strip 407 to move horizontally. The locking strip 407 drives the rectangular frame 403 and the push plate 401 to move, which in turn causes the moving block 404 connected to the push plate 401 and the cutting machine 5 fixed at the bottom of the moving block 404 to move. The telescopic limit tube 405 and the telescopic spring 406 between the moving blocks 404 play a limiting and buffering role, thereby adjusting the distance between the five cutting machines 5.

[0046] The rotating disc 907 is manually adjusted according to the initial width of different base papers, which drives the threaded screw 905 to rotate. The toothed block on one side of the toothed strip 903 meshes with the threads around the threaded screw 905. The rotation of the threaded screw 905 causes the toothed strips 903 on both sides to move in opposite or the same direction along the limiting frame 904. The toothed strips 903 drive the limiting strips 901 to move on the top of the support frame 10 through the movable block 902 and the connecting strip 908, thereby adjusting the distance between the two limiting strips 901.

[0047] Immediately afterwards, the telescopic rod 6 drives the top plate 3 to move down, the pressure spring 204 is compressed, the drive roller 202 and the auxiliary roller 207 come into contact with the sandpaper base paper, the drive roller 202 rotates under the action of power, driving the sandpaper base paper forward, the auxiliary roller 207 plays an auxiliary support and guiding role, the pressure spring 204 provides a certain pressure to ensure that there is sufficient friction between the drive roller 202 and the sandpaper base paper, the drive roller 202 contacts the surface of the base paper and drives it, the cutter 5 moves downward and performs cutting.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting device for processing sandpaper base paper, comprising a cutting panel (1), characterized in that, The bottom of the cutting panel (1) is fixedly connected to a support frame (10), and the inside of the support frame (10) is fixedly connected to a limiting mechanism (9). A roller frame (12) is fixedly connected to one side of the cutting panel (1) and the support frame (10). A support base (11) is fixedly connected around the bottom of the support frame (10), and a support plate (7) is fixedly connected inside the support frame (10).

2. The cutting equipment for processing sandpaper base paper according to claim 1, characterized in that, The bottom of the support plate (7) is fixedly connected to a controller (8), and the top of the support plate (7) is fixedly connected to telescopic rods (6). The top of the four telescopic rods (6) is fixedly connected to a top plate (3). The bottom of the top plate (3) is fixedly connected to a pitch mechanism (4). The bottom of the pitch mechanism (4) is fixedly connected to several cutting machines (5). The top of the cutting panel (1) is fixedly connected to a cutting machine (5). The top of the cutting panel (1) has several slots. The bottom of the top plate (3) is fixedly connected to a drive mechanism (2).

3. The cutting equipment for processing sandpaper base paper according to claim 2, characterized in that, The drive mechanism (2) includes a side plate (201), a drive roller (202), a fixing frame (203), a pressure spring (204), a round rod (205), a limiting cylinder (206), an auxiliary roller (207), and a connecting plate (208). The two round rods (205) are fixedly connected to the bottom of the top plate (3), the two pressure springs (204) are fixedly connected to the bottom of the top plate (3), and the two round rods (205) are movably connected to the inside of the two pressure springs (204). The two fixing frames (203) are fixedly connected to the bottom of the two pressure springs (204).

4. The cutting equipment for processing sandpaper base paper according to claim 3, characterized in that, The two limiting cylinders (206) are respectively fixedly connected to the inner top of the fixing frame (203), and the limiting cylinders (206) pass through the fixing frame (203). The two round rods (205) are respectively movably connected to the inside of the two limiting cylinders (206). The connecting plate (208) is fixedly connected to the bottom of the two limiting cylinders (206) and the two fixing frames (203). The two side plates (201) are respectively fixedly connected to the two sides of the connecting plate (208). The driving roller (202) is movably connected to the relative inner side of the two side plates (201). The auxiliary roller (207) is movably connected to the relative inner side of the two side plates (201).

5. The cutting equipment for processing sandpaper base paper according to claim 2, characterized in that, The variable pitch mechanism (4) includes a push plate (401), a protective frame (402), a rectangular frame (403), a moving block (404), a telescopic limiting tube (405), a telescopic spring (406), a snap-fit ​​strip (407), a gear rod (408), a bidirectional motor (409), and a limiting frame (410). The protective frame (402) is fixedly connected to the bottom of the top plate (3). The inner walls on both sides and the top of the inner wall of the protective frame (402) are respectively provided with sliding grooves. The two push plates (401) are respectively movably connected to the inside of the protective frame (402). The two rectangular frames (403) are respectively fixedly connected to the opposite inner sides of the two push plates (401), and the top of the rectangular frame (403) is provided with a slider.

6. The cutting equipment for processing sandpaper base paper according to claim 5, characterized in that, The rectangular frame (403) is movably connected to the inside of the protective frame (402). Five movable blocks (404) are slidably connected to the inside of the protective frame (402). Slider blocks are provided on both sides of the movable blocks (404). Five cutting machines (5) are fixedly connected to the bottom of the five movable blocks (404). Two movable blocks (404) are fixedly connected to the opposite inner sides of two push plates (401). Telescopic limiting tubes (405) are fixedly connected to the opposite inner sides of two movable blocks (404). Telescopic springs (406) are fixedly connected to the opposite inner sides of two movable blocks (404). Telescopic limiting tubes (405) are movably connected to the inside of telescopic springs (406).

7. The cutting equipment for processing sandpaper base paper according to claim 5, characterized in that, The two limiting frames (410) are fixedly connected to the inner walls of the two sides of the protective frame (402). The bidirectional motor (409) is fixedly connected to the inner side of the two limiting frames (410), and the output ends of the bidirectional motor (409) pass through the two limiting frames (410). The two gear rods (408) are fixedly connected to one side of the output ends of the bidirectional motor (409). The four snap-fit ​​strips (407) are movably connected to the two sides of the two gear rods (408), and the tooth block on one side of the snap-fit ​​strip (407) meshes with the four pieces of the gear rod (408). The four snap-fit ​​strips (407) are fixedly connected to one side of the two rectangular frames (403), and the snap-fit ​​strips (407) are movably connected to the inside of the limiting frame (410).

8. The cutting equipment for processing sandpaper base paper according to claim 1, characterized in that, The limiting mechanism (9) includes a limiting strip (901), a movable block (902), a toothed strip (903), a limiting frame (904), a threaded rod (905), a fixed block (906), a disc rotating rod (907), and a connecting strip (908). The two fixed blocks (906) are fixedly connected to the inside of the cutting panel (1), the threaded rod (905) is movably connected to the opposite inner side of the two fixed blocks (906), and the two toothed strips (903) are movably connected to both sides of the threaded rod (905).

9. A cutting device for processing sandpaper base paper according to claim 8, characterized in that, The toothed blocks on one side of the toothed strip (903) mesh with the threads around the threaded rod (905). The limiting frame (904) is fixedly connected to the inside of the cutting panel (1), and the two toothed strips (903) are movably connected to the inside of the limiting frame (904). The two movable blocks (902) are respectively fixedly connected to one side of the two toothed strips (903). An opening is provided on one side of the movable block (902). The two disc rotating rods (907) are respectively movably connected to the inside of the two movable blocks (902), and the two ends of the threaded rod (905) are respectively fixedly connected to the opposite inner sides of the two disc rotating rods (907).

10. A cutting device for processing sandpaper base paper according to claim 8, characterized in that, The four connecting strips (908) are fixedly connected to one side of the two movable blocks (902), and the top of the support frame (10) is provided with four openings. The connecting strips (908) are movably connected to the inside of the openings of the support frame (10). The limiting strip (901) is fixedly connected to the top of the two connecting strips (908), and the limiting strip (901) is movably connected to the top of the support frame (10).

Images