A polyimide sheet cutting and positioning device

Abstract

This utility model relates to the field of sheet metal cutting technology and discloses a polyimide sheet metal cutting and positioning device, including a worktable. Two load-bearing plates are fixedly connected to the upper side of the worktable, and limit sliders are slidably connected between the two sides of the two load-bearing plates. The two limit sliders are slidably connected to the upper side of the worktable. When the movable cutting unit moves downward to cut the polyimide sheet, the rotating cylinder pushes the push plate to one side, indirectly driving the pressure plate to rotate by pulling the pull rod, so that the rubber pad on the pressure plate presses the polyimide sheet from the top, thereby achieving the purpose of positioning and fixing. When the cutting is completed, the movable cutting unit moves upward, which drives the pressure plate to reverse and remove the pressure plate from the top of the sheet, making it easier to unload the polyimide sheet after cutting. In summary, the cutting and positioning device of this utility model has the advantages of convenient loading and unloading and simple operation.

Description

Technical Field

[0001] This utility model relates to the technical field of polyimide sheet cutting equipment, and in particular to a polyimide sheet cutting positioning device. Background Technology

[0002] Polyimide sheets are a new type of high-temperature thermosetting engineering plastic with excellent electrical insulation, wear resistance, high-temperature radiation resistance, and physical and mechanical properties. They are widely used in high-end fields such as aerospace, lasers, nanotechnology, and microelectronics. When processing and cutting polyimide sheets, in order to ensure cutting accuracy, the polyimide sheets need to be positioned and fixed before cutting. However, existing polyimide sheet cutting and positioning devices have the problem of inconvenient loading and unloading during cutting.

[0003] For example, Chinese utility model patent CN214924891U discloses a cutting and positioning device for polyimide sheets, including sheet cutting equipment. Although this solution has a guide and positioning mechanism designed on the feeding mechanism of the cutting equipment, which can automatically adjust the position of the sheet, each time a polyimide sheet to be cut is placed on the roller conveyor belt, the sheet needs to be inserted under the pressing roller. If a thick sheet is encountered, the height of the pressing roller needs to be adjusted by adjusting the adjusting bolt to adapt to the polyimide sheet of that thickness. In addition, after cutting, due to the interference of the pressing roller above and the inability of the main board to move to the side, the material needs to be pulled out from the side, that is, in the direction parallel to the plane where the pressing roller is located, to complete the unloading. This is very inconvenient to use. Based on this, a polyimide sheet cutting and positioning device that can solve the above problems is proposed. Utility Model Content

[0004] To address the technical problem of convenient loading and unloading in polyimide sheet cutting equipment, this utility model provides a polyimide sheet cutting and positioning device.

[0005] This utility model is achieved using the following technical solution: a polyimide sheet cutting and positioning device, comprising a worktable, two load-bearing plates fixedly connected to the upper side of the worktable, limit sliders slidably connected between the two sides of the two load-bearing plates, the two limit sliders slidably connected to the upper side of the worktable, a pull rod fixedly connected to the side of the two limit sliders that are close to each other, a pressure plate rotatably connected to the upper side of the worktable above each pull rod, a rubber pad installed on one side of the pressure plate, swing plates fixedly connected to the lower side of the two pressure plates, each swing plate having a limit groove, the pull rod on each side slidably connected to the inner side of the limit groove on the same side, an elastic reset mechanism being provided on the side of each limit slider away from the pressure plate, and a pressure plate drive mechanism for rotating the pressure plate being provided on the upper side of the load-bearing plate.

[0006] As a further improvement to the above solution, the elastic reset mechanism includes multiple culvert grooves opened on each of the limiting sliders. A slide rod is slidably connected to the inner side of each culvert groove. A fixing plate is fixedly connected to the end of each slide rod away from the pressure plate. Each fixing plate is fixedly connected to the upper side of the worktable. A spring is sleeved on the outer side of each slide rod. One end of each spring is fixedly connected to one side of the fixing plate, and the other end of each spring is fixedly connected to one side of the limiting slider.

[0007] As a further improvement to the above solution, the pressure plate driving mechanism includes a push plate fixedly connected to the upper side of each of the limiting sliders, a limiting platform fixedly connected between the upper sides of the two load-bearing plates, a rotating cylinder rotatably connected to the inner side of the limiting platform, a rotating cylinder driving mechanism for rotating the rotating cylinder is provided on the upper side of the limiting platform, and a connecting rod pushing mechanism is provided between the lower side of the rotating cylinder and the push plate.

[0008] As a further improvement to the above solution, the rotary drum drive mechanism includes multiple spiral grooves opened on the inner side of the rotary drum. A pointer rod is movably connected to the inner side of each spiral groove. A push rod is fixedly connected to one end of the multiple pointer rods that are close to each other. A push rod lifting mechanism is provided at the upper end of the push rod to make the push rod move up and down reciprocally.

[0009] As a further improvement to the above solution, a movable cutter unit is fixedly connected to the lower end of the push rod.

[0010] As a further improvement to the above solution, the push rod lifting mechanism includes a mounting plate fixedly connected to the upper side of the limiting platform. A movable slide is slidably connected to the side of the mounting plate near the push rod. The movable slide is fixedly connected to the upper end of the push rod. An electric cylinder is mounted on the upper side of the mounting plate. The output end of the electric cylinder passes downward through the mounting plate and is fixedly connected to the upper side of the movable slide.

[0011] As a further improvement to the above solution, the linkage pushing mechanism includes two sleeves fixedly connected between the two load-bearing plates respectively. A punch rod is slidably connected to the inner side of each sleeve. One end of each punch rod away from the rotating cylinder is fixedly connected to one side of the push plate. The other end of each punch rod is rotatably connected to a connecting plate. One end of each connecting plate away from the punch rod is rotatably connected to the lower side of the rotating cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When the movable cutting unit of this utility model moves downward to cut the polyimide sheet, the rotating cylinder pushes the push plate to one side, which indirectly drives the pressure plate to rotate by pulling the pull rod. This causes the rubber pad on the pressure plate to press the polyimide sheet from the top, thereby achieving the purpose of positioning and fixing. When the cutting is completed, the movable cutting unit moves upward, which drives the pressure plate to reverse and move the pressure plate away from the top of the sheet, making it easier to unload the polyimide sheet after cutting. In summary, the cutting and positioning device of this utility model has the advantages of convenient loading and unloading and simple operation.

[0014] 2. This utility model, by installing a rubber pad with a certain elasticity on the pressure plate and the limiting groove with a certain length on the swing plate, can adaptively adjust the position of the pull rod sliding in the limiting groove and the deformation of the rubber pad when cutting polyimide sheets of different thicknesses, without the need for manual adjustment. This makes the positioning of polyimide sheets of different thicknesses simpler and more efficient. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a polyimide sheet cutting and positioning device provided by this utility model;

[0016] Figure 2 for Figure 1 Top view;

[0017] Figure 3 for Figure 1 Side view;

[0018] Figure 4 for Figure 1 A schematic diagram of the exploded structure;

[0019] Figure 5 This is an exploded structural diagram of the rotary drum drive mechanism in one embodiment of the present invention;

[0020] Figure 6 This is a cross-sectional view of the transfer cylinder of this utility model.

[0021] Explanation of key symbols:

[0022] 1. Workbench; 2. Moving cutter unit; 3. Pull rod; 4. Swing plate; 5. Pressure plate; 6. Limiting slider; 7. Fixing plate; 8. Load-bearing plate; 9. Limiting platform; 10. Rotary drum; 11. Electric cylinder; 12. Mounting plate; 13. Moving slide; 14. Push rod; 15. Pointer rod; 16. Spring; 17. Slide rod; 18. Push plate; 19. Sleeve; 20. Punch rod; 21. Connecting plate; 22. Rubber pad; 23. Limiting groove; 24. Spiral groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figures 1-3 This embodiment of a polyimide sheet cutting and positioning device includes a workbench 1. Two load-bearing plates 8 are fixedly connected to the upper side of the workbench 1. In this embodiment, the load-bearing plates 8 are arched. Limiting sliders 6 are slidably connected between the two sides of the two load-bearing plates 8. The two limiting sliders 6 are slidably connected to the upper side of the workbench 1. A pull rod 3 is fixedly connected to the side of the two limiting sliders 6 that are close to each other. A pressure plate 5 is provided above each pull rod 3 and is rotatably connected to the upper side of the workbench 1. A rubber pad 22 is installed on one side of the pressure plate 5. The outer surface of the rubber pad 22 has a striped structure to increase friction. A swing plate 4 is fixedly connected to the lower side of the two pressure plates 5. The length of the swing plate 4 is less than the length of the pressure plate 5. Each swing plate 4 has a limiting groove 23. The pull rod 3 on each side is slidably connected to the inner side of the limiting groove 23 on the same side. An elastic reset mechanism is provided on the side of each limiting slider 6 away from the pressure plate 5. A pressure plate drive mechanism for rotating the pressure plate 5 is provided on the upper side of the load-bearing plates 8.

[0026] With the above technical solution, when the pressure plate 5 rotates to press the plate, the limiting slider 6 moves to one side, causing the pull rod 3 to slide along the inner side of the limiting groove 23.

[0027] Please combine Figure 2 As shown, the elastic reset mechanism includes three culvert grooves opened on each limiting slider 6. A slide rod 17 is slidably connected to the inner side of each culvert groove. The ends of the three slide rods 17 away from the pressure plate 5 are all fixedly connected to a fixing plate 7. Each fixing plate 7 is fixedly connected to the upper side of the worktable 1. A spring 16 is sleeved on the outer side of each slide rod 17. One end of each spring 16 is fixedly connected to one side of the fixing plate 7, and the other end of each spring 16 is fixedly connected to one side of the limiting slider 6.

[0028] Through the above technical solution, the sliding block 6 can be limited by the sliding rod 17, making the sliding state of the limiting slider 6 more stable and helping to improve the positioning accuracy. In addition, when the push plate 18 moves outward, it can push the spring 16 to compress and deform. Conversely, when the spring 16 rebounds, it can drive the pressure plate 5 to reverse.

[0029] Please combine Figure 2As shown, the pressure plate drive mechanism includes a push plate 18 fixedly connected to the upper side of each limit slider 6, a limit platform 9 fixedly connected between the upper sides of the two load-bearing plates 8, a rotating cylinder 10 rotatably connected to the inner side of the limit platform 9, a rotating cylinder drive mechanism for rotating the rotating cylinder 10 is provided on the upper side of the limit platform 9, and a connecting rod push mechanism is provided between the lower side of the rotating cylinder 10 and the push plate 18.

[0030] Please combine Figure 6 As shown, the rotary drum drive mechanism includes two spiral grooves 24 opened inside the rotary drum 10. Each spiral groove 24 can rotate 90 degrees, or 0.25 turns, from the upper end to the lower end. In other embodiments, spiral grooves 24 with different rotation numbers can be set according to specific circumstances. A pointer rod 15 is movably connected to the inner side of each spiral groove 24. The two pointer rods 15 are fixedly connected to a push rod 14 at their close ends. The upper end of the push rod 14 is provided with a push rod lifting mechanism that makes the push rod 14 move up and down reciprocally.

[0031] With the above technical solution, when the push rod 14 moves from top to bottom, it can drive the pointer rod 15 to slide along the spiral groove 24. Due to the structural features of the spiral groove 24, the rotating drum 10 can be driven to rotate at a certain angle. When the rotating drum 10 rotates, it can drive the connecting plate 21 to move.

[0032] Please combine Figure 1 As shown, the lower end of the push rod 14 is fixedly connected to the movable cutter unit 2, and the movable cutter unit 2 is equipped with a slide table. The laser cutter can move left and right along the slide table to achieve cutting.

[0033] The push rod lifting mechanism includes a mounting plate 12 fixedly connected to the upper side of the limiting platform 9. A movable slide 13 is slidably connected to the side of the mounting plate 12 near the push rod 14. The movable slide 13 is fixedly connected to the upper end of the push rod 14. An electric cylinder 11 is mounted on the upper side of the mounting plate 12. The output end of the electric cylinder 11 passes downward through the mounting plate 12 and is fixedly connected to the upper side of the movable slide 13.

[0034] The electric cylinder 11 is activated, which pushes the movable slide 13 to slide downward along one side of the mounting plate 12, thereby limiting the movable slide 13.

[0035] Please combine Figure 4 As shown, the linkage pushing mechanism includes two sleeves 19 fixedly connected between two load-bearing plates 8. Each sleeve 19 has a punch 20 slidably connected to its inner side. One end of each punch 20 away from the rotating cylinder 10 is fixedly connected to one side of the push plate 18. The other end of each punch 20 is rotatably connected to a connecting plate 21. One end of each connecting plate 21 away from the punch 20 is rotatably connected to the lower side of the rotating cylinder 10.

[0036] With the above technical solution, when the sleeve 19 rotates, the connecting plate 21 can pull the punch rod 20 to slide back and forth inside the sleeve 19, thereby achieving the effect of the punch rod 20 driving the push plate 18 to push.

[0037] The implementation principle of the polyimide sheet cutting and positioning device in this application embodiment is as follows: The polyimide sheet to be cut is placed on the workbench 1, and then the electric cylinder 11 is started to push the moving slide 13 downward. The moving slide 13 pushes the push rod 14 downward. At this time, the pointer rod 15 on the side of the push rod 14 pushes the spiral slide groove 24 to rotate, thereby driving the rotating drum 10 to rotate. The rotation of the rotating drum 10 pushes the punch rod 20 to one side through the connecting plate 21, thereby driving the push plate 18 to slide to one side. The push plate 18 drives the limiting slider 6 to move outward. The limiting slider 6 drives the pressure plate 5 and the swing plate 4 to rotate through the pull rod 3. The pull rod 3 slides inside the limiting slide groove 23. Finally, the pressure plates 5 on both sides achieve the effect of pressing and positioning the upper surface of the polyimide sheet through the rubber pad 22. The limiting slider 6 on the other side slides along the surface of the slide rod 17. The spring 16 is compressed and deformed. When the push rod 14 descends to a certain height, the moving cutter unit 2 just reaches the height at which the upper surface of the polyimide sheet can be cut.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A polyimide sheet cutting positioning device comprising a worktable (1), characterized in that, Two load-bearing plates (8) are fixedly connected to the upper side of the workbench (1). Limiting sliders (6) are slidably connected between the two sides of the two load-bearing plates (8). The two limiting sliders (6) are slidably connected to the upper side of the workbench (1). A pull rod (3) is fixedly connected to the side of the two limiting sliders (6) that is close to each other. A pressure plate (5) that is rotatably connected to the upper side of the workbench (1) is provided above each pull rod (3). A rubber pad (22) is installed on one side of the pressure plate (5). A swing plate (4) is fixedly connected to the lower side of the two pressure plates (5). A limiting groove (23) is opened on each swing plate (4). The pull rod (3) on each side is slidably connected to the inner side of the limiting groove (23) on the same side. An elastic reset mechanism is provided on the side of each limiting slider (6) that is away from the pressure plate (5). A pressure plate drive mechanism that makes the pressure plate (5) rotate is provided on the upper side of the load-bearing plate (8).

2. A polyimide sheet cutting and positioning device as claimed in claim 1, wherein, The elastic reset mechanism includes multiple culvert grooves opened on each of the limiting sliders (6), and a slide rod (17) is slidably connected to the inner side of each culvert groove. The ends of the multiple slide rods (17) away from the pressure plate (5) are all fixedly connected to a fixing plate (7). Each fixing plate (7) is fixedly connected to the upper side of the worktable (1). A spring (16) is sleeved on the outer side of each slide rod (17). One end of each spring (16) is fixedly connected to one side of the fixing plate (7), and the other end of each spring (16) is fixedly connected to one side of the limiting slider (6).

3. The polyimide sheet cutting and positioning device as described in claim 1, characterized in that, The pressure plate driving mechanism includes a push plate (18) fixedly connected to the upper side of each of the limiting sliders (6), a limiting platform (9) fixedly connected between the upper sides of the two load-bearing plates (8), a rotating cylinder (10) rotatably connected to the inner side of the limiting platform (9), a rotating cylinder driving mechanism for rotating the rotating cylinder (10) is provided on the upper side of the limiting platform (9), and a connecting rod pushing mechanism is provided between the lower side of the rotating cylinder (10) and the push plate (18).

4. The polyimide sheet cutting and positioning device as described in claim 3, characterized in that, The rotary drum drive mechanism includes multiple spiral grooves (24) opened inside the rotary drum (10). Each spiral groove (24) is movably connected to a pointer rod (15). The ends of the multiple pointer rods (15) that are close to each other are fixedly connected to a push rod (14). The upper end of the push rod (14) is provided with a push rod lifting mechanism that makes the push rod (14) move up and down reciprocally.

5. The polyimide sheet cutting and positioning device as described in claim 4, characterized in that, The lower end of the push rod (14) is fixedly connected to a movable cutter unit (2).

6. The polyimide sheet cutting and positioning device as described in claim 4, characterized in that, The push rod lifting mechanism includes a mounting plate (12) fixedly connected to the upper side of the limiting platform (9). A movable slide (13) is slidably connected to the side of the mounting plate (12) near the push rod (14). The movable slide (13) is fixedly connected to the upper end of the push rod (14). An electric cylinder (11) is installed on the upper side of the mounting plate (12). The output end of the electric cylinder (11) passes downward through the mounting plate (12) and is fixedly connected to the upper side of the movable slide (13).

7. The polyimide sheet cutting and positioning device as described in claim 3, characterized in that, The linkage pushing mechanism includes two sleeves (19) fixedly connected between the two load-bearing plates (8). Each sleeve (19) has a punch (20) slidably connected to its inner side. One end of each punch (20) away from the rotating cylinder (10) is fixedly connected to one side of the push plate (18). The other end of each punch (20) is rotatably connected to a connecting plate (21). One end of each connecting plate (21) away from the punch (20) is rotatably connected to the lower side of the rotating cylinder (10).

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