Efficient impregnated resin paper cutting device

Abstract

An efficient impregnated resin paper cutting device comprises a rack, two paper guide plates with the same height are connected to the rack, a first motor is connected to one side of the rack, a rotating shaft is rotationally arranged on the rack, and the rotating shaft is connected to an output shaft of the first motor; a screw rod and a guide rod which are symmetrical are arranged on the rack, a positioning frame is arranged on the guide rod in a sliding manner, and a plurality of positioning claws are arranged on the positioning frame; longitudinal cutting discs with the same number as the positioning frames are in key connection with the rotating shaft and are positioned in positioning claws of the positioning frames. All the positioning frames are connected into a whole through the connecting rods, the distance between the positioning frames can be adjusted to be consistent by controlling the screw to rotate, and the longitudinal cutting disc limited by the positioning claws is driven to move, so that the cut impregnated resin paper with the target size is obtained.

Description

Technical Field

[0001] The invention relates to the field of resin-impregnated paper cutting, and in particular to a high-efficiency resin-impregnated paper cutting device. Background Art

[0002] Resin-impregnated paper is an important substrate for stacking resin-impregnated paper laminates. It has the characteristics of uniform glue content and easy stacking. Resin-impregnated paper laminates are generally made using lamination technology. According to the thickness requirements of the product, the resin-impregnated papers are stacked at intervals and then placed in a hot press and pressed at a predetermined temperature and pressure.

[0003] There are many specifications of resin-impregnated paper laminates, and the size needs to change frequently. The cutting process is the key link to ensure the dimensional accuracy and performance of resin-impregnated paper. For conventional straight-line cutting of medium and low thickness paperboards, mechanical cutting is generally used, which is low-cost, high-efficiency, and suitable for mass production. However, in the current cutting machine, the cutting disc is fixed on the shaft and usually does not have a spacing adjustment function, or the spacing of the cutting disc is adjusted by adjusting the spacing of the shaft that fixes the cutting knife. However, in this way, the spacing of the cutting knives needs to be adjusted one by one, and the installation of the cutting knives is also difficult.

[0004] The invention provides a high-efficiency resin-impregnated paper cutting device, which achieves the purpose of conveniently installing a cutting disc and synchronously adjusting the equal spacing of all cutting discs. Summary of the invention

[0005] According to the problems raised in the background technology, the present invention provides a high-efficiency resin-impregnated paper cutting device to solve the problems. The present invention will be further described below.

[0006] A high-efficiency resin-impregnated paper cutting device comprises a frame, two paper guides of equal height are connected to the frame, a first motor is connected to one side of the frame, a rotating shaft is rotatably arranged on the frame, and the rotating shaft is connected to the output shaft of the first motor; a symmetrical screw and a guide rod are arranged on the frame, a positioning frame is slidably arranged on the guide rod, and a plurality of positioning claws are arranged on the positioning frame; a longitudinal cutting disk having the same number as the positioning frame is key-connected on the rotating shaft, and the longitudinal cutting disk is positioned in the positioning claw of the positioning frame; a connecting rod is rotatably connected to the top of the positioning frame, the center of the connecting rod is rotatably connected to the positioning frame, and the two ends of the connecting rod are respectively rotatably connected to the connecting rod ends of the adjacent positioning frames, the proximal positioning frame is threadedly connected to the screw, and the connecting rod end of the distal positioning frame is connected to the frame; an electric slide rail is connected to the frame, the electric slide rail is connected to a base, the base is connected to the second motor, and the output shaft of the second motor is connected to the transverse cutting disk.

[0007] Preferably, there is a gap between two paper guides of equal height connected to the frame, support seats are provided on both sides of the frame, a main shaft is carried on the support seat, a slide slot is provided on the main shaft, and a slot sleeve is provided on the main shaft outer sleeve with the same number as the longitudinal cutting disc, and the bottom of the longitudinal cutting disc is located inside the top of the slot sleeve. The slot sleeve is intended to lift the resin-impregnated paper across the gap between the paper guides to maintain the horizontal state of the resin-impregnated paper.

[0008] Preferably, the two contact surfaces of the positioning claw and the longitudinal cutting disk are provided with air ports, which are connected to the first tee through air pipes, the positioning frame is connected to the second tee, the first tee on both sides is connected to the second tee through air pipes, and the second tee is connected to the main air pipe on the frame. The purpose is to form an air layer between the contact surface of the positioning claw and the longitudinal cutting disk located in the positioning claw, maintain the longitudinal cutting disk in the center, and eliminate the sliding freedom of the longitudinal cutting disk during the rotation of the shaft.

[0009] Preferably, the support seat is connected to two pedestals, there is a space between the two pedestals, a lower base is arranged between the pedestals, arms are connected to the two sides of the lower base, the arms are placed on the pedestals, and the lower base is rotatably connected to an upper buckle. The space between the pedestals is used as the activity space required for the lifting of the sling, and the upper buckle is locked with the lower base to limit the main shaft.

[0010] Preferably, the lower base is further connected to a support foot located below the support platform, the support foot is downwardly connected to a sliding column, a guide cylinder is connected to the frame, the sliding column and the guide cylinder are slidably matched, and a support spring is provided outside the sliding column and the guide cylinder, and both ends of the support spring contact the frame and the support foot. The function of the support spring is to support the lower base and reduce the load on the support platform.

[0011] Preferably, the bottom of the support seat on both sides of the frame is connected with a slide bar, the slide bar is slidably arranged on the frame, the frame is connected with an electric push rod, the output of the electric push rod is connected with a moving rod, and the two ends of the moving rod are rotatably connected to the slide rod through a pull rod; the support platform is provided with two step surfaces with a height difference. When the longitudinal cutting disc is installed, the main shaft moves down to avoid the longitudinal cutting disc.

[0012] Preferably, the ends of the two screws on the same side are keyed to drive wheels, which are connected by a conveyor belt, so that when one of the screws rotates to adjust the longitudinal cutting disc spacing, the screw generates symmetrical forces on both sides of the positioning frame matched with it, so that the positioning frame moves smoothly.

[0013] Preferably, a second slide bar is connected to the positioning frame, one end of the second slide bar is connected to a limit cap, a return spring sleeved outside the second slide bar is provided between the limit cap and the positioning frame, and a grinding head is connected to the other end of the second slide bar. When grinding is required, the grinding head can be brought into contact with the high-speed rotating longitudinal cutting disc by pressing down the second slide bar without disassembling the longitudinal cutting disc, so as to grind the longitudinal cutting disc.

[0014] Beneficial effects: Compared with the prior art, the present invention connects all the positioning frames into a whole through a connecting rod. The spacing between the positioning frames can be adjusted to be consistent by controlling the rotation of the screw, and the longitudinal cutting disc restricted by its positioning claws can be driven to move, so as to obtain the resin-impregnated paper after cutting of the target size. The resin-impregnated paper is lifted by the main shaft and the groove sleeve sliding thereon to maintain its flatness, and to ensure that the longitudinal cutting disc can completely cut the resin-impregnated paper. When adjusting the spacing of the longitudinal cutting discs, the spacing of the groove sleeve is adjusted in conjunction. By arranging an air port on the positioning claw, the longitudinal cutting disc is always maintained in the middle of the positioning claw after rotation without contacting it, which protects the longitudinal cutting disc and ensures the accuracy of the spacing adjustment. By arranging a step surface with a height difference on the support base, the groove sleeve is installed away from the longitudinal cutting disc during installation, and the lifting of the resin-impregnated paper is maintained during operation and the complete cutting of the resin-impregnated paper is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A schematic structural diagram of a highly efficient resin-impregnated paper cutting device according to the present invention; Figure 2 : Schematic diagram of the structure of the rack; Figure 3 : Structural diagram of the positioning frame; Figure 4 : Figure 1 A magnified schematic diagram of the structure at center A; Figure 5 : Schematic diagram of the connection between the electric push rod and the support seat; In the figure: frame 1, paper guide 2, first motor 3, rotating shaft 4, screw 5, guide rod 6, positioning frame 7, positioning claw 701, longitudinal cutting disk 8, connecting rod 9, electric slide rail 10, base 11, second motor 12, transverse cutting disk 13, support seat 14, two bearing platforms 141, main shaft 15, groove sleeve 16, air port 17, first three-way 18, second three-way 19, lower base 20, support arm 201, support foot 202, slide column 203, upper buckle 21, guide cylinder 22, support spring 23, slide rod 24, electric push rod 25, moving rod 26, pull rod 27, transmission wheel 28, conveyor belt 29, second slide rod 30, limit cap 31, reset spring 32, grinding head 33. DETAILED DESCRIPTION

[0016] Next, combine with Figure 1-Figure 5 A specific embodiment of the present invention is described in detail.

[0017] Reference Figure 1-Figure 3 A high-efficiency resin-impregnated paper cutting device comprises a frame 1, two guide paper boards 2 of equal height are connected to the frame 1, a first motor 3 is connected to one side of the frame 1, a rotating shaft 4 is rotatably arranged on the frame 1, and the rotating shaft 4 is connected to the output shaft of the first motor 3. A symmetrical screw rod 5 and a guide rod 6 are arranged on the frame 1, a positioning frame 7 is slidably arranged on the guide rod 6, and a plurality of positioning claws 701 are arranged on the positioning frame 7; longitudinal cutting discs 8 having the same number as the positioning frames are key-connected to the rotating shaft 4, and the longitudinal cutting discs 8 are positioned in the positioning claws 701 of the positioning frame 7.

[0018] The top of the positioning frame 7 is rotatably connected with a connecting rod 9, the center of the connecting rod 9 is rotatably connected to the positioning frame 7, and the two ends of the connecting rod 9 are respectively rotatably connected to the ends of the connecting rod 9 of the adjacent positioning frame 7, so that all the positioning frames 7 form a synchronous sliding whole, and the existence of the connecting rod makes the spacing between any adjacent positioning frames always consistent. Among the positioning frames 7, the positioning frame 7 located at the innermost side (close to the first motor 3) is threadedly connected to the screw 5, and the screw runs through the remaining positioning frames except the innermost positioning frame, that is, the remaining positioning frames except the innermost positioning frame do not cooperate with the screw thread. The end of the connecting rod 9 of the outermost positioning frame 7 is connected to the frame 1.

[0019] When adjusting the spacing of the positioning frames 7, it is only necessary to rotate the screw rod 5 to link the innermost positioning frame 7 to move. When the innermost positioning frame 7 moves, it links the remaining positioning frames 7 to slide on the guide rod 6 through the connecting rod 9, and makes the spacing of any adjacent positioning frames 7 consistent. At the same time, since the longitudinal cutting disc 8 is positioned in the positioning claw 701 of the positioning frame 7, the longitudinal cutting disc 8 is driven by the positioning claw 701 to slide on the rotating shaft 4, so as to achieve the purpose of adjusting the spacing of the longitudinal cutting disc 8 to be consistent.

[0020] The frame 1 is also connected to an electric slide rail 10, the electric slide rail 10 is connected to a base 11, and a second motor 12 is connected to the output shaft of the second motor 12. The transverse cutting disk 13 rotates at a high speed under the drive of the second motor 12, and at the same time moves back and forth under the action of the electric slide rail 10 to perform transverse cutting on the resin-impregnated paper.

[0021] The resin-impregnated paper to be cut is pushed from the paper guide 2 on the side different from the second motor 12 to the longitudinal cutting disc 8. The longitudinal cutting disc 8 rotates at high speed under the drive of the first motor 3 to perform longitudinal equidistant cutting on the resin-impregnated paper passing through. The resin-impregnated paper that has been cut transversely remains stationary for a period of time after passing the longitudinal cutting disc 8 for a certain length. During this period of time, the electric slide rail 10 drives the second motor 12 to move a one-way stroke, and the high-speed rotating transverse cutting disc 13 cuts the resin-impregnated paper that has been cut longitudinally transversely, so as to obtain the resin-impregnated paper of the target size.

[0022] There is a gap between two paper guides 2 of equal height connected to the frame 1, so that the bottom edge of the longitudinal cutting disc 8 can be below the top surface of the paper guide 2, ensuring that the impregnated resin paper passing through is completely cut. However, the flexibility of the impregnated resin paper varies significantly due to the type of material, manufacturing process and processing method. For example, the common cellulose impregnated resin paper is flexible and has sag when crossing the gap between the paper guides 2. This embodiment eliminates the influence of sag through the following technical solutions: support seats 14 are provided on both sides of the frame 1, and a main shaft 15 is carried on the support seat 14. The main shaft 15 is provided with a slide groove. The main shaft 15 is provided with a groove sleeve 16 with the same number as the longitudinal cutting disc 8. The bottom of the longitudinal cutting disc 8 is located inside the top of the groove sleeve 16.

[0023] When the resin-impregnated paper passes through the interval between the paper guides 2, it will be supported by the groove sleeve 16 to maintain a horizontal state. At this time, the bottom of the rotating longitudinal cutting disc 8 is below the plane where the resin-impregnated paper is located, and the resin-impregnated paper can be completely cut. At the same time, when the longitudinal cutting disc 8 is adjusted, the sideways longitudinal cutting disc 8 will push the groove sleeve 16 to slide on the main shaft 15, that is, the groove sleeve 16 moves synchronously with the longitudinal cutting disc 8.

[0024] Reference Figure 1-Figure 4 , the present invention retains the sliding freedom of the longitudinal cutting disk 8 on the rotating shaft 4, and the positioning claw 701 limits the longitudinal cutting disk 8 during the rotation and cutting process. When adjusting the spacing of the longitudinal cutting disk 8, the positioning claw 701 pushes the longitudinal cutting disk 8 to move, and the longitudinal cutting disk 8 pushes the groove sleeve 16 to move. The positioning claw 701 and the groove sleeve 16 are in contact with the longitudinal cutting disk 8. After the spacing is adjusted, the positioning claw 701 needs to be out of contact with the longitudinal cutting disk 8 and the groove sleeve 16. This embodiment maintains the longitudinal cutting disk 8 in the middle of the positioning claw 701 and does not contact it during the rotation process through the following technical solutions: the positioning claw 701 is provided with an air port 17 on the two contact surfaces with the longitudinal cutting disk 8, and the air ports are connected to the first tee 18 through an air pipe, and the positioning frame 7 is connected to the second tee 19, and the first tee 18 on both sides is connected to the second tee 19 through an air pipe, and the second tee is connected to the main air pipe on the frame.

[0025] The high-pressure gas in the main air pipe flows out from the air port 17 on the contact surface of the positioning claw 701 through the second tee 19 and the first tee 18 respectively, so that an air layer is formed between the contact surface of the positioning claw 701 and the longitudinal cutting disk 8 located inside the positioning claw 701, thereby maintaining the longitudinal cutting disk 8 in the center and eliminating the sliding freedom of the longitudinal cutting disk 8 during the rotation process on the rotating shaft 4. On the one hand, the longitudinal cutting disk 8 does not contact the positioning claw 701 during the high-speed rotation. On the other hand, before adjusting the spacing of the longitudinal cutting disk 8, the airflow is turned off. When adjusting the spacing, the positioning claw 701 contacts the longitudinal cutting disk 8 and pushes it to slide. At the same time, the longitudinal cutting disk 8 pushes the groove sleeve 16 to slide. After the adjustment is in place, the airflow is started to maintain the longitudinal cutting disk 8 in the center. The airflow causes the longitudinal cutting disk 8 to continue to slide a short distance and pushes the groove sleeve 16 to continue to slide a short distance. The longitudinal cutting disk 8 is centered under air pressure, and the groove sleeve 16 is out of contact with the longitudinal cutting disk 8 due to inertia. In this way, the longitudinal cutting disk 8 does not contact the positioning claw 701 and the groove sleeve 16 during rotation.

[0026] Reference Figure 4 When assembling the device, the main shaft 15 needs to be hoisted and installed first, and the hoisting device acts on both ends of the main shaft to hoist it on the support seat 14. The support seat 14 is connected to two bearing platforms 141, and the interval between the two bearing platforms 141 is used as the activity space for the hoisting device. A lower base 20 is arranged between the bearing platforms 141, and support arms 201 are connected to both sides of the lower base 20. The support arms 201 are placed on the bearing platforms 141. The lower base 20 is rotatably connected to the upper buckle 21, and the upper buckle 21 is locked with the lower base 20 to limit the main shaft 15.

[0027] The lower base 20 is also connected to a support leg 202 located below the support platform 141, the support leg 202 is downwardly connected to a slide column 203, a guide cylinder 22 is connected to the frame 1, the slide column 203 is slidably matched with the guide cylinder 22, and a support spring 23 is provided outside the slide column 203 and the guide cylinder 22, and the two ends of the support spring 23 contact the frame 1 and the support leg 202. The function of the support spring 23 is to support the lower base 20 and reduce the load of the support platform 141, but it is not enough to support the main shaft 15 alone, and the lower base 20 is always supported on the support seat 14.

[0028] Reference Figure 4-Figure 5After the main shaft 15 is hoisted and installed, the positioning frame 7 and the longitudinal cutting disk 8 are installed. When the positioning frame and the longitudinal cutting disk are gradually pushed sideways, the groove sleeve 16 on the main shaft 15 will hinder the installation of the longitudinal cutting disk 8. This embodiment adopts the following technical solution to achieve the downward movement of the main shaft 15 to avoid the longitudinal cutting disk 8 during installation: the bottom of the support seat 14 on both sides of the frame 1 is connected to a slide bar 24, and the slide bar 24 is slidably set on the frame 1. The frame 1 is connected to an electric push rod 25, and the output of the electric push rod 25 is connected to a moving rod 26. The two ends of the moving rod 26 are rotatably connected to the slide bar 24 through a pull rod 27; the base 141 is provided with two step surfaces with a height difference.

[0029] In the installed state, the support arms 201 on both sides of the lower base 20 are placed on the low step surface, and the height of the main shaft 15 is at a low position, so that there is a distance between the groove sleeve 16 and the bottom of the longitudinal cutting disk 8, so that the longitudinal cutting disk 8 can be installed laterally. When the longitudinal cutting disk 8 is installed in place, the movable groove sleeves 16 are placed under the longitudinal cutting disk 8 one by one; then it is switched to the working state, the electric push rod 25 is actuated, pushing the movable rod 26 forward, and pulling the support seat 14 toward each other through the pull rod 27 and the slide rod 24, and the support arms 201 on both sides of the lower base 20 slide from the low step surface to the high step surface, so that the main shaft 15 rises, and the bottom of the longitudinal cutting disk 8 is in the groove sleeve 16.

[0030] Reference Figure 2 The two screw rods 5 are keyed to a transmission wheel 28 at the ends on the same side, and the transmission wheel 28 is connected by a conveyor belt 29. In this way, when one of the screw rods 5 is rotated to adjust the spacing between the longitudinal cutting discs 8, the other screw rod 5 rotates synchronously, generating symmetrical forces on both sides of the positioning frame 7 that cooperates with the screw rods 5 near the first motor, so that the positioning frame 7 moves smoothly.

[0031] Reference Figure 4 After long-term use, the longitudinal cutting disc 8 is worn and needs to be polished. In order to conveniently polish the longitudinal cutting disc 8, the embodiment does not need to remove the longitudinal cutting disc 8 from the frame 1. Specifically, the positioning frame 7 is connected with a second slide bar 30, one end of the second slide bar 30 is connected with a limit cap 31, and a return spring 32 is provided between the limit cap 31 and the positioning frame 7. The other end of the second slide bar 30 is connected with a polishing head 33. When polishing is required, the longitudinal cutting disc 8 rotates at a high speed driven by the rotating shaft 4, and the second slide bar 30 is pressed down so that the polishing head 33 contacts the longitudinal cutting disc 8, and the longitudinal cutting disc 8 is polished.

[0032] The present invention connects all the positioning frames 7 to a whole through a connecting rod. By controlling the rotation of the screw, the spacing between the positioning frames 7 can be adjusted to be consistent, and the longitudinal cutting disc 8 restricted by the positioning claw 701 can be driven to move, so as to obtain the resin-impregnated paper after cutting of the target size. The resin-impregnated paper is lifted by the main shaft and the groove sleeve 16 sliding thereon, and its flatness is maintained, and the longitudinal cutting disc 8 can be ensured to completely cut the resin-impregnated paper. When adjusting the spacing of the longitudinal cutting disc 8, the spacing of the groove sleeve 16 is adjusted in linkage. By arranging an air port on the positioning claw 701, the longitudinal cutting disc 8 is always maintained in the middle of the positioning claw 701 after rotation without contacting it, which protects the longitudinal cutting disc 8 and ensures the accuracy of the spacing adjustment. By arranging a step surface with a height difference on the support platform 141 of the support seat 14, the groove sleeve 16 is installed away from the longitudinal cutting disc 8 during installation, and the lifting of the resin-impregnated paper is maintained during operation and the complete cutting of the resin-impregnated paper is ensured.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-efficiency resin-impregnated paper cutting device, comprising a frame (1), two paper guides (2) of equal height are connected to the frame (1), a first motor (3) is connected to one side of the frame (1), a rotating shaft (4) is rotatably provided on the frame (1), and the rotating shaft (4) is connected to the output shaft of the first motor (3); characterized in that: The frame (1) is provided with symmetrical screw rods (5) and guide rods (6); a positioning frame (7) is slidably provided on the guide rod (6); a plurality of positioning claws (701) are provided on the positioning frame (7); the rotating shaft (4) is key-connected with longitudinal cutting discs (8) having the same number as the positioning frames, and the longitudinal cutting discs (8) are positioned in the positioning claws (701) of the positioning frame (7); a connecting rod (9) is rotatably connected to the top of the positioning frame (7), and the center of the connecting rod (9) is rotatably connected to the positioning frame (7). The two ends of the two ends are respectively rotatably connected to the ends of the connecting rods (9) of the adjacent positioning frames (7); the proximal positioning frame (7) is threadedly connected to the screw rod (5); the ends of the connecting rods (9) of the distal positioning frame (7) are connected to the frame (1); the frame (1) is connected to an electric slide rail (10); the electric slide rail (10) is connected to a base (11); the base (11) is connected to a second motor (12); and the output shaft of the second motor (12) is connected to a transverse cutting disc (13).

2. The high-efficiency resin-impregnated paper cutting device according to claim 1, characterized in that: There is a gap between two paper guides (2) of equal height connected to the frame (1), support seats (14) are provided on both sides of the frame (1), a main shaft (15) is carried on the support seat (14), a slide groove is provided on the main shaft (15), and a groove sleeve (16) whose number is the same as that of the longitudinal cutting discs (8) is provided on the outer sleeve of the main shaft (15), and the bottom of the longitudinal cutting disc (8) is located on the inner side of the top of the groove sleeve (16).

3. The high-efficiency resin-impregnated paper cutting device according to claim 2, characterized in that: Air ports (17) are provided on the two contact surfaces of the positioning claw (701) and the longitudinal cutting disc (8), and the air ports are connected to the first tee (18) through air pipes. The positioning frame (7) is connected to the second tee (19). The first tee (18) on both sides is connected to the second tee (19) through air pipes, and the second tee is connected to the main air pipe on the frame.

4. The high-efficiency resin-impregnated paper cutting device according to claim 3, characterized in that: The support seat (14) is connected to two support platforms (141), a space is provided between the two support platforms (141), a lower base (20) is provided between the support platforms (141), support arms (201) are connected to both sides of the lower base (20), the support arms (201) are placed on the support platforms (141), and the lower base (20) is rotatably connected to an upper buckle (21).

5. The high-efficiency resin-impregnated paper cutting device according to claim 4, characterized in that: The lower base (20) is also connected to a support foot (202) located below the support platform (141); the support foot (202) is downwardly connected to a slide column (203); a guide cylinder (22) is connected to the frame (1); the slide column (203) and the guide cylinder (22) are slidably matched; a support spring (23) is provided outside the slide column (203) and the guide cylinder (22); two ends of the support spring (23) contact the frame (1) and the support foot (202).

6. The high-efficiency resin-impregnated paper cutting device according to claim 5, characterized in that: The bottoms of the support seats (14) on both sides of the frame (1) are connected to slide bars (24), the slide bars (24) are slidably arranged on the frame (1), the frame (1) is connected to an electric push rod (25), the output of the electric push rod (25) is connected to a moving rod (26), and the two ends of the moving rod (26) are rotatably connected to the slide bars (24) via pull rods (27); the support platform (141) is provided with two step surfaces with a height difference.

7. The high-efficiency resin-impregnated paper cutting device according to claim 1, characterized in that: The ends of the two screw rods (5) on the same side are key-connected with a transmission wheel (28), and the transmission wheels (28) are connected via a conveyor belt (29).

8. The high-efficiency resin-impregnated paper cutting device according to claim 1, characterized in that: The positioning frame (7) is connected to a second slide bar (30), one end of the second slide bar (30) is connected to a limiting cap (31), a return spring (32) sleeved outside the second slide bar (30) is provided between the limiting cap (31) and the positioning frame (7), and the other end of the second slide bar (30) is connected to a grinding head (33).

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