Efficient resin paper cutting device

Abstract

A kind of high-efficiency impregnated resin paper cutting device, including frame, two equal height paper guide plate are connected on the frame, first motor is connected on the frame side, rotary shaft is rotatably arranged on the frame, and the rotary shaft is connected on the output shaft of first motor;Symmetrical screw rod and guide rod are arranged on the frame, positioning frame is slidably arranged on the guide rod, and multiple positioning claws are arranged on the positioning frame;Longitudinal cutting disc consistent with the number of positioning frame is keyed connected on the rotary shaft, and longitudinal cutting disc is positioned in the positioning claw of positioning frame.The positioning frame of the whole is connected by connecting rod in the present application, the spacing between positioning frame is adjusted consistent by controlling screw rod rotation, and the longitudinal cutting disc limited by its positioning claw is moved, so that the impregnated resin paper after cutting of target size is obtained.

Description

Technical Field

[0001] This invention relates to the field of resin-impregnated paper cutting, and more specifically to a high-efficiency resin-impregnated paper cutting device. Background Technology

[0002] Impregnated resin paper is an important substrate for impregnated resin paper laminates. It has the characteristics of uniform glue content and convenient stacking. Impregnated resin paper laminates are generally made by lamination molding technology. According to the thickness requirements of the product, the impregnated resin paper is stacked with intervals and then placed in a hot press and pressed under a predetermined temperature and pressure.

[0003] Impregnated paper laminates come in various specifications, and their dimensions often need to be changed. The cutting process is a crucial step in ensuring the dimensional accuracy and performance of impregnated paper. For conventional straight-line cutting of medium and low thickness paperboard, mechanical cutting is generally used, which is low-cost, efficient, and suitable for mass production. However, in current cutting machines, the cutting disc is fixed on the rotating shaft and usually does not have a spacing adjustment function. Alternatively, the spacing of the cutting disc can be adjusted by adjusting the spacing of the rotating shaft that fixes the cutting blades, but this method requires adjusting the spacing of each cutting blade individually, and the installation of the cutting blades is also difficult.

[0004] This invention provides a high-efficiency resin-impregnated paper cutting device, which facilitates the installation of cutting discs and allows for the simultaneous adjustment of the spacing between all cutting discs. Summary of the Invention

[0005] In response to the problems raised in the background art, the present invention provides a high-efficiency resin-impregnated paper cutting device to solve them, and the present invention will be further described below.

[0006] A high-efficiency resin-impregnated paper cutting device includes a frame with two guide plates of equal height connected to it. A first motor is connected to one side of the frame, and a rotating shaft is rotatably mounted on the frame and connected to the output shaft of the first motor. The frame has symmetrical screws and guide rods, and positioning frames are slidably mounted on the guide rods. Each positioning frame has multiple positioning claws. The rotating shaft has longitudinal cutting discs, the same number as the positioning frames, keyed to it. The longitudinal cutting discs are positioned in the positioning claws of the positioning frames. A connecting rod is rotatably connected to the top of each positioning frame. The center of the connecting rod is rotatably connected to the positioning frame, and its two ends are rotatably connected to the connecting rod ends of adjacent positioning frames. The near-end positioning frame is threaded to the screw, and the connecting rod end of the far-end positioning frame is connected to the frame. An electric slide rail is connected to the frame, and a base is connected to the electric slide rail. A second motor is connected to the base, and a transverse cutting disc is connected to the output shaft of the second motor.

[0007] Preferably, there is a gap between two guide plates of equal height connected on the frame. Supports are provided on both sides of the frame, and a main shaft is supported on each support. The main shaft has grooves, and sleeves matching the number of longitudinal cutting discs are fitted around it. The bottom of each longitudinal cutting disc is located inside the top of the sleeve. The sleeves are designed to lift the resin-impregnated paper across the gap between the guide plates, maintaining the resin-impregnated paper in a horizontal position.

[0008] Preferably, air ports are provided on both contact surfaces of the positioning claw and the longitudinal cutting disc. Each air port is connected to a first three-way valve via an air pipe. A second three-way valve is connected to the positioning frame. The first three-way valves on both sides are connected to the second three-way valve via air pipes, and the second three-way valve is connected to the main air pipe on the frame. This design aims to form an air layer between the contact surface of the positioning claw and the longitudinal cutting disc located within the positioning claw, maintaining the longitudinal cutting disc in the center and eliminating the sliding degree of freedom of the longitudinal cutting disc during rotation on the shaft.

[0009] Preferably, the support base is connected to two bearing platforms with a space between them. A lower base is provided between the bearing platforms, and support arms are connected to both sides of the lower base. The support arms are placed on the bearing platforms, and the lower base is rotatably connected to an upper buckle. The space between the bearing platforms serves as the movement space required for the lifting device, and the upper buckle locks onto the lower base to limit the movement of the main shaft.

[0010] Preferably, the lower base is also connected to a support leg located below the support platform. A sliding column is connected downwards to the support leg, and a guide cylinder is connected to the frame. The sliding column and guide cylinder are in sliding engagement. Support springs are provided outside the sliding column and guide cylinder, with both ends of the support springs contacting the frame and the support leg. The function of the support springs is to support the lower base and reduce the load on the support platform.

[0011] Preferably, the bottom of the support bases on both sides of the frame is connected to a sliding rod, which is slidably mounted on the frame. An electric push rod is connected to the frame, and the output of the electric push rod is connected to a moving rod. The two ends of the moving rod are rotatably connected to the sliding rod via pull rods. The support platform has two stepped surfaces with a height difference. This is intended to allow the spindle to move downwards to avoid obstructing the longitudinal cutting disc during installation.

[0012] Preferably, the ends of the two screws on the same side are keyed to drive wheels, which are connected via a conveyor belt. This design aims to ensure that when one screw rotates to adjust the longitudinal cutting disc spacing, the screw exerts symmetrical forces on both sides of the positioning frame it mates with, thus ensuring smooth displacement of the positioning frame.

[0013] Preferably, a second slide rod is connected to the positioning frame. One end of the second slide rod is connected to a limit cap, and a return spring is provided between the limit cap and the positioning frame, sleeved on the outside of the second slide rod. The other end of the second slide rod is connected to a grinding head. The purpose is that when grinding is required, the grinding head can contact the high-speed rotating longitudinal cutting disc by pressing down the second slide rod without disassembling the longitudinal cutting disc, thereby grinding the longitudinal cutting disc.

[0014] Beneficial Effects: Compared with existing technologies, this invention connects all positioning frames into a single unit via connecting rods. 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, moves, thereby obtaining the target size of the cut resin-impregnated paper. The main shaft and its sliding sleeves support the resin-impregnated paper, maintaining its flatness and ensuring that the longitudinal cutting discs can completely cut the resin-impregnated paper. The spacing of the sleeves is adjusted in conjunction with the spacing of the longitudinal cutting discs. By providing air vents on the positioning claws, the longitudinal cutting discs remain in the center of the positioning claws after rotation without contacting them, protecting the longitudinal cutting discs and ensuring accurate spacing adjustment. By providing stepped surfaces with height differences on the support platform, the sleeves avoid misalignment with the longitudinal cutting discs during installation, maintaining support for the resin-impregnated paper and ensuring complete cutting during operation. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the structure of the high-efficiency resin-impregnated paper cutting device of the present invention;

[0016] Figure 2 : Structural diagram of the frame;

[0017] Figure 3 : Structural diagram of the positioning frame;

[0018] Figure 4 : Figure 1 Enlarged schematic diagram of the structure at point A;

[0019] Figure 5 : Schematic diagram of the connection between the electric actuator and the support base;

[0020] In the diagram: 1. Frame; 2. Guide plate; 3. First motor; 4. Rotating shaft; 5. Screw; 6. Guide rod; 7. Positioning frame; 701. Positioning claw; 8. Longitudinal cutting disc; 9. Connecting rod; 10. Electric slide rail; 11. Base; 12. Second motor; 13. Transverse cutting disc; 14. Support seat; 141. Two supports; 15. Main shaft; 16. Slot sleeve; 17. Air port; 18. First tee; 19. Second tee; 20. Lower base; 201. Support arm; 202. Support leg; 203. Sliding column; 21. Upper buckle; 22. Guide cylinder; 23. Support spring; 24. Sliding rod; 25. Electric push rod; 26. Moving rod; 27. Pull rod; 28. Transmission wheel; 29. ​​Conveyor belt; 30. Second sliding rod; 31. Limit cap; 32. Return spring; 33. Grinding head. Detailed Implementation

[0021] Next, we will combine the appendix Figures 1-5 A specific embodiment of the present invention will be described in detail below.

[0022] Reference Appendix Figures 1-3 A high-efficiency resin-impregnated paper cutting device includes a frame 1, two guide plates 2 of equal height connected to the frame 1, a first motor 3 connected to one side of the frame 1, and a rotating shaft 4 rotatably mounted on the frame 1, the rotating shaft 4 being connected to the output shaft of the first motor 3. The frame 1 is provided with symmetrical screws 5 and guide rods 6, and a positioning frame 7 is slidably mounted on the guide rod 6, the positioning frame 7 having multiple positioning claws 701; the rotating shaft 4 is keyed with longitudinal cutting discs 8, the same number as the positioning discs, the longitudinal cutting discs 8 being positioned in the positioning claws 701 of the positioning frame 7.

[0023] A connecting rod 9 is rotatably connected to the top of the positioning frame 7. The center of the connecting rod 9 is rotatably connected to the positioning frame 7, and its two ends are rotatably connected to the ends of the connecting rods 9 of adjacent positioning frames 7, thus making all positioning frames 7 form a synchronously sliding whole. The presence of the connecting rod ensures that the spacing between any two adjacent positioning frames remains consistent. Among the positioning frames 7, the innermost positioning frame 7 (closest to the first motor 3) is threadedly connected to the screw 5. The screw passes through all positioning frames except the innermost one, meaning that the other positioning frames do not have threaded engagement with the screw. The end of the connecting rod 9 of the outermost positioning frame 7 is connected to the frame 1.

[0024] When adjusting the spacing of the positioning frames 7, only the screw 5 needs to be rotated, which moves the innermost positioning frame 7. As the innermost positioning frame 7 moves, it moves the other positioning frames 7 along the guide rod 6 via the connecting rod 9, ensuring that the spacing between any adjacent positioning frames 7 is 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 moves along the positioning frame 7 under the push of the positioning claw 701 to slide on the rotating shaft 4, thus achieving the purpose of adjusting the spacing of the longitudinal cutting discs 8 to be consistent.

[0025] An electric slide rail 10 is also connected to the frame 1. A base 11 is connected to the electric slide rail 10, and a second motor 12 is connected to the base 11. A transverse cutting disc 13 is connected to the output shaft of the second motor 12. The transverse cutting disc 13 rotates at high speed under the drive of the second motor 12, and moves back and forth under the action of the electric slide rail 10 to perform transverse cutting on the resin-impregnated paper.

[0026] The resin-impregnated paper to be cut is pushed from the guide plate 2 on the side opposite to the second motor 12 toward the longitudinal cutting disk 8. The longitudinal cutting disk 8 rotates at high speed under the drive of the first motor 3, and performs longitudinal equidistant cuts on the resin-impregnated paper passing through it. After being transversely cut, the resin-impregnated paper stops for a period of time after passing the longitudinal cutting disk 8 for a certain length. During this period of time, the electric slide rail 10 drives the second motor 12 to move one unidirectional stroke, and the high-speed rotating transverse cutting disk 13 transversely cuts the resin-impregnated paper that has been longitudinally cut, thus obtaining resin-impregnated paper of the target size.

[0027] There is a gap between the two guide plates 2 of equal height connected on the frame 1, which is intended to ensure that the bottom edge of the longitudinal cutting disc 8 is below the top surface of the guide plate 2, so as to ensure complete cutting of the resin-impregnated paper passing through. However, the flexibility of the resin-impregnated paper varies significantly depending on the material type, manufacturing process and processing method. For example, common cellulose resin-impregnated paper is flexible and sags when crossing the gap between the guide plates 2. This embodiment eliminates the effect of sag through the following technical solution: the frame 1 is provided with support seats 14 on both sides, and a main shaft 15 is supported on the support seat 14. The main shaft 15 is provided with a sliding groove, and the main shaft 15 is fitted with a sleeve 16 with the same number of sleeves as the longitudinal cutting disc 8. The bottom of the longitudinal cutting disc 8 is located inside the top of the sleeve 16.

[0028] As the resin-impregnated paper passes through the gap between the guide plates 2, it is supported by the slot sleeve 16 and kept horizontal. At this time, the bottom of the rotating longitudinal cutting disc 8 is below the plane of the resin-impregnated paper, allowing for complete cutting of the resin-impregnated paper. Simultaneously, when adjusting the spacing of the longitudinal cutting discs 8, the laterally moving longitudinal cutting discs 8 will push the slot sleeve 16 to slide on the main shaft 15, that is, the slot sleeve 16 moves synchronously with the longitudinal cutting discs 8.

[0029] Reference Appendix Figures 1-4This invention preserves the sliding freedom of the longitudinal cutting disc 8 on the rotating shaft 4, and the positioning claw 701 limits the longitudinal cutting disc 8 during rotational cutting. When adjusting the spacing of the longitudinal cutting discs 8, the positioning claw 701 pushes the longitudinal cutting disc 8 to move, and the longitudinal cutting disc 8 pushes the slot sleeve 16 to move. Both the positioning claw 701 and the slot sleeve 16 are in contact with the longitudinal cutting disc 8. After the spacing is adjusted, the positioning claw 701 needs to disengage from the longitudinal cutting disc 8 and the slot sleeve 16. This embodiment maintains the longitudinal cutting disc 8 in the middle of the positioning claw 701 without contacting it during rotation through the following technical solution: air ports 17 are provided on the two contact surfaces of the positioning claw 701 and the longitudinal cutting disc 8. The air ports are all connected to the first three-way valve 18 through air pipes. The positioning frame 7 is connected to the second three-way valve 19. The first three-way valves 18 on both sides are connected to the second three-way valve 19 through air pipes. The second three-way valves are connected to the main air pipe on the frame.

[0030] 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 three-way 19 and the first three-way 18, thus forming an air layer between the contact surface of the positioning claw 701 and the longitudinal cutting disk 8 located in the positioning claw 701, maintaining the longitudinal cutting disk 8 in the center and eliminating the sliding degree of freedom of the longitudinal cutting disk 8 during its rotation on the rotating shaft 4. On the one hand, the longitudinal cutting disc 8 does not contact the positioning claw 701 during high-speed rotation. On the other hand, before adjusting the spacing of the longitudinal cutting disc 8, the airflow is turned off. When adjusting the spacing, the positioning claw 701 contacts the longitudinal cutting disc 8 and pushes it to slide. At the same time, the longitudinal cutting disc 8 pushes the slot sleeve 16 to slide. After the adjustment is in place, the airflow is started to spray out, keeping the longitudinal cutting disc 8 centered. The airflow causes the longitudinal cutting disc 8 to continue to slide a short distance and pushes the slot sleeve 16 to slide a short distance. The longitudinal cutting disc 8 is centered under air pressure, and the slot sleeve 16 disengages from the longitudinal cutting disc 8 due to inertia. In this way, the longitudinal cutting disc 8 does not contact the positioning claw 701 or the slot sleeve 16 during rotation.

[0031] Reference Appendix Figure 4 When assembling this device, the main shaft 15 must first be hoisted and installed. A hoisting device is used to lift the main shaft onto the support base 14 at both ends. Two bearing platforms 141 are connected to the support base 14, and the space between the two bearing platforms 141 serves as the hoisting space for the lifting device. A lower base 20 is provided 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 an upper buckle 21, which locks into the lower base 20 to limit the movement of the main shaft 15.

[0032] The lower base 20 is also connected to a support leg 202 located below the support platform 141. The support leg 202 is connected downward to a sliding column 203. A guide cylinder 22 is connected to the frame 1. The sliding column 203 and the guide cylinder 22 are slidably engaged. A support spring 23 is provided outside the sliding column 203 and the guide cylinder 22. 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 on the support platform 141, but it is not enough to support the main shaft 15 alone. The lower base 20 is always supported on the support seat 14.

[0033] Reference Appendix Figures 4-5 After hoisting and installing the main shaft 15, the positioning frame 7 and the longitudinal cutting disc 8 are then installed. During the gradual lateral advancement of the positioning frame and the longitudinal cutting disc, the presence of a slotted sleeve 16 on the main shaft 15 will obstruct the installation of the longitudinal cutting disc 8. This embodiment employs the following technical solution to achieve the goal of the main shaft 15 moving downwards to avoid obstructing the longitudinal cutting disc 8 during installation: The bottom of the support seats 14 on both sides of the frame 1 is connected to sliding rods 24, which are slidably mounted on the frame 1. An electric push rod 25 is connected to the frame 1, 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 sliding rod 24 via pull rods 27. The support platform 141 has two stepped surfaces with a height difference.

[0034] In the installation state, the support arms 201 on both sides of the lower base 20 are placed on the low step surface, and the main shaft 15 is at a low height, so that there is a gap between the slot sleeve 16 and the bottom of the longitudinal cutting disk 8. This allows the longitudinal cutting disk 8 to be installed laterally. After the longitudinal cutting disk 8 is installed in place, the movable slot sleeve 16 is lowered one by one under the longitudinal cutting disk 8. Then, the working state is switched, the electric push rod 25 is activated, pushing the moving rod 26 forward, and pulling the support base 14 to move towards each other through the pull rod 27 and the slide rod 24. 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 inside the slot sleeve 16.

[0035] Reference Appendix Figure 2 The two screws 5 are keyed to the ends of the same side with a drive wheel 28, which is connected by a conveyor belt 29. Thus, when one screw 5 is rotated to adjust the spacing of the longitudinal cutting discs 8, the other screw 5 rotates synchronously, generating symmetrical forces on both sides of the positioning frame 7 that cooperates with the screw 5 near the first motor, so that the positioning frame 7 can be moved smoothly.

[0036] Reference Appendix Figure 4After prolonged use, the longitudinal cutting disc 8 experiences wear and requires grinding. To facilitate grinding, this embodiment does not require removing the longitudinal cutting disc 8 from the frame 1. Specifically, a second slide rod 30 is connected to the positioning frame 7. One end of the second slide rod 30 is connected to a limit cap 31, and a return spring 32 is sleeved on the second slide rod 30 between the limit cap 31 and the positioning frame 7. The other end of the second slide rod 30 is connected to a grinding head 33. When grinding is required, the longitudinal cutting disc 8 rotates at high speed under the drive of the rotating shaft 4, pressing down the second slide rod 30 so that the grinding head 33 contacts the longitudinal cutting disc 8 to grind it.

[0037] This invention connects all positioning frames 7 into a single unit via connecting rods. The spacing between the positioning frames 7 can be adjusted to be consistent by controlling the rotation of the screw, and the longitudinal cutting disc 8, restricted by its positioning claw 701, moves, thereby obtaining the target size of the cut resin-impregnated paper. The main shaft and its sliding sleeve 16 support the resin-impregnated paper, maintaining its flatness and ensuring that the longitudinal cutting disc 8 can completely cut the resin-impregnated paper. The spacing of the sleeve 16 is adjusted in conjunction with the spacing of the longitudinal cutting discs 8. By providing air vents on the positioning claw 701, the longitudinal cutting disc 8 remains in the center of the positioning claw 701 after rotation without contacting it, thus protecting the longitudinal cutting disc 8 and ensuring accurate spacing adjustment. By providing a stepped surface with a height difference on the support platform 141 of the support base 14, the sleeve 16 avoids misalignment with the longitudinal cutting disc 8 during installation, maintaining support for the resin-impregnated paper and ensuring complete cutting of the resin-impregnated paper during operation.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency resin-impregnated paper cutting device, comprising a frame (1), two guide plates (2) of equal height connected to the frame (1), a first motor (3) connected to one side of the frame (1), and a rotating shaft (4) rotatably mounted on the frame (1), the rotating shaft (4) being connected to the output shaft of the first motor (3); characterized in that: The frame (1) is provided with symmetrical screws (5) and guide rods (6). A positioning frame (7) is slidably mounted on the guide rod (6). The positioning frame (7) is provided with multiple positioning claws (701). The rotating shaft (4) is keyed with longitudinal cutting discs (8) in the same number as the positioning frames. 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). The center of the connecting rod (9) is rotatably connected to the positioning frame (7). The two ends of the upper part are rotatably connected to the ends of the connecting rods (9) of the adjacent positioning frame (7). The near end positioning frame (7) is threadedly connected to the screw (5), and the end of the connecting rod (9) of the far end positioning frame (7) is connected to the frame (1). An electric slide rail (10) is connected to the frame (1), a base (11) is connected to the electric slide rail (10), a second motor (12) is connected to the base (11), and a transverse cutting disc (13) is connected to the output shaft of the second motor (12). There is a gap between the two guide plates (2) of equal height connected on the frame (1). The frame (1) is provided with support seats (14) on both sides. A main shaft (15) is supported on the support seats (14). A sliding groove is provided on the main shaft (15). The main shaft (15) is fitted with a sleeve (16) with the same number as the longitudinal cutting discs (8). The bottom of the longitudinal cutting discs (8) is located inside the top of the sleeve (16). The positioning claw (701) and the longitudinal cutting disc (8) are provided with air ports (17) on their two contact surfaces. The air ports are all connected to the first three-way valve (18) through air pipes. The positioning frame (7) is connected to the second three-way valve (19). The first three-way valves (18) on both sides are connected to the second three-way valve (19) through air pipes. The second three-way valve is connected to the main air pipe on the frame. Two supports (141) are connected to the support base (14), with a space between the two supports (141). A lower base (20) is provided between the supports (141), and support arms (201) are connected to both sides of the lower base (20). The support arms (201) are placed on the supports (141), and the lower base (20) is rotatably connected to an upper buckle (21). The lower base (20) is also connected to a support leg (202) located below the supports (141). The support leg (202) is connected downward to a sliding column (203), and a guide cylinder (22) is connected to the frame (1). The sliding column (203) and the guide cylinder (203) are connected to each other. 22) Sliding fit, the sliding column (203) and the guide cylinder (22) are provided with a support spring (23), the two ends of the support spring (23) contact the frame (1) and the support foot (202); the bottom of the support seat (14) on both sides of the frame (1) is connected to a sliding rod (24), the sliding rod (24) is slidably set 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), the two ends of the moving rod (26) are rotatably connected to the sliding rod (24) through the pull rod (27); the platform (141) is provided with two stepped surfaces with a height difference.

2. The high-efficiency resin-impregnated paper cutting device according to claim 1, characterized in that: The two screws (5) are keyed to the ends of the same side with a drive wheel (28), which is connected by a conveyor belt (29).

3. 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 rod (30). One end of the second slide rod (30) is connected to a limit cap (31). A return spring (32) is sleeved on the second slide rod (30) between the limit cap (31) and the positioning frame (7). The other end of the second slide rod (30) is connected to a grinding head (33).

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