Shearing device for circuit board

Abstract

The utility model relates to the technical field of flexible circuit board production, in particular to a shearing device for a circuit board. Comprising a base, a supporting frame, an air cylinder, a connecting frame, a cutter, an internal threaded rod, an electric sliding rail, a placing plate and a sliding block, the supporting frame is arranged on the left side of the top end of the base, the air cylinder is arranged in the middle of the top end of the supporting frame, an air rod of the air cylinder is connected with the internal threaded rod, and the lower portion of the internal threaded rod is in threaded connection with the connecting frame; an electric sliding rail is arranged in the middle of the top end of the base, a placing plate is connected to a moving part of the electric sliding rail, sliding grooves are formed in the left side and the right side of the placing plate correspondingly, and two sliding blocks are slidably connected into the two sliding grooves correspondingly. According to the utility model, the flexible circuit board is flattened at the top end of the placing plate through the extrusion plates at the front side and the rear side, and the extrusion plates are fixed by the hooks, so that the flexible circuit board is fixed at the top end of the placing plate, the flexible circuit board is simply and quickly flattened, and the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible circuit board production technical field especially relates to a shearing device for circuit board. BACKGROUND

[0002] Flexible circuit board is a kind of printed circuit board made of flexible substrate. Compared with traditional rigid printed circuit board, flexible circuit board has the characteristics of light and thin, bendable and foldable, and can realize complex three-dimensional wiring in limited space, so it is widely used in modern electronic equipment. Shearing of flexible circuit board is an important step in the process of manufacturing printed circuit board, which involves cutting flexible circuit material into specific shape and size according to design requirements. Correct shearing method is crucial to ensure the quality, reliability and functionality of flexible circuit board.

[0003] According to the patent authorized announcement No. CN219107803U, a kind of circuit board shearing device, including workbench, sliding plate is movably arranged in the workbench, clamping mechanism is arranged on the sliding plate, for driving the sliding plate horizontal movement the feeding mechanism for being used, the upper side of the sliding plate is equipped with shearing mechanism, for driving the shearing mechanism rises or falls the lifting mechanism for being used, for installing the lifting mechanism the rack for being used, the side of the rack is equipped with controller, the clamping mechanism, feeding mechanism and lifting mechanism are electrically connected with the controller.

[0004] Although the patent technology effectively avoids the problem of curling of flexible circuit board during shearing process, but in actual operation, still need artificial flatly placed on the sliding plate of flexible circuit board. Because of the softness and easy bending characteristics of flexible circuit board material itself, this flat step is still challenging, not easy to do completely flat. Utility model content

[0005] In order to overcome the shortcomings that flexible circuit board still needs to be placed flat on the sliding plate by artificial in the prior art, and it is not easy to do completely flat before shearing, the purpose of the utility model is to provide a shearing device for circuit board.

[0006] The technical implementation scheme of this utility model is as follows: A shearing device for circuit boards includes a base, a support frame, a cylinder, a connecting frame, a cutter, an internally threaded rod, an electric slide rail, a placement plate, a screw, a hook, a slider, a pressing plate, and a second elastic element. The support frame is provided on the top left side of the base, and a cylinder is provided in the middle of the top of the support frame. An internally threaded rod is connected to the cylinder rod, and a connecting frame is threaded to the lower part of the internally threaded rod. A cutter is provided at the bottom of the connecting frame. An electric slide rail is provided in the middle of the top of the base, and a placement plate is connected to the moving part of the electric slide rail. Slide grooves are opened on both the left and right sides of the placement plate, and two sliders are slidably connected in both slide grooves. Rectangular holes are opened at the ends of the sliders on both sides that are close to each other. A pressing plate is slidably connected between the two sliders on the front side and between the two sliders on the rear side. The pressing plate slides in the rectangular holes. A second elastic element is connected between the pressing plate and the sliders. Screws are threaded to both the front and rear ends of the placement plate, and hooks are rotatably connected to the ends of the two screws that are close to each other.

[0007] Furthermore, the upper part of the connecting frame is an externally threaded rod, and the lower part is a rectangular plate.

[0008] Furthermore, the top of the placement plate has symmetrical openings at the front and back, located directly below the screw and hook.

[0009] Furthermore, each slider has a limiting notch that communicates with a rectangular hole and is compatible with the extrusion plate.

[0010] Furthermore, it also includes guide rods, with guide rods installed in the slide grooves on both the left and right sides, and the guide rods on both sides passing through the sliders in the slide grooves.

[0011] Furthermore, it also includes a first elastic element, with the first elastic element symmetrically arranged on both the front and rear sides of the two guide rods. One end of the first elastic element is connected to the placement plate, and the other end is connected to the slider.

[0012] Furthermore, it also includes a blocking block, with a blocking block in the middle of both guide rods, and the blocking block is made of flexible material.

[0013] Furthermore, it also includes sponge blocks, with arc-shaped sponge blocks at the bottom of the extrusion plates.

[0014] The present invention has the following advantages: 1. By using the extrusion plates on the front and rear sides, the flexible circuit board is laid flat on the top of the placement plate. The extrusion plates are fixed with hooks, so that the flexible circuit board is fixed on the top of the placement plate, realizing the simple and quick laying of the flexible circuit board and greatly improving work efficiency.

[0015] 2. The internal threaded rod and the connecting bracket are connected together by threads, allowing for quick replacement of different specifications of cutters to meet the shearing needs of flexible circuit boards of various sizes, increasing the flexibility of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the cylinder and connecting frame components of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the placement plate and guide rod of this utility model.

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] Figure 5 This is a three-dimensional structural diagram of the screw and hook of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the cutting tool of this utility model.

[0022] In the attached diagrams: 1: base, 2: support frame, 3: cylinder, 4: connecting frame, 401: cutter, 5: internal thread rod, 6: electric slide rail, 7: placement plate, 701: slide groove, 702: opening, 8: screw, 9: hook, 10: guide rod, 11: slider, 111: rectangular hole, 12: first elastic element, 13: extrusion plate, 131: sponge block, 14: second elastic element, 15: limiting notch, 16: blocking block. Detailed Implementation

[0023] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] A cutting device for circuit boards, such as Figures 1-6As shown, the system includes a base 1, a support frame 2, a cylinder 3, a connecting frame 4, a cutter 401, an internally threaded rod 5, an electric slide rail 6, a placement plate 7, a screw 8, a hook 9, a slider 11, a pressing plate 13, and a second elastic element 14. The support frame 2 is located on the top left side of the base 1. The cylinder 3 is located in the middle of the top of the support frame 2. An internally threaded rod 5 is connected to the rod of the cylinder 3. The lower part of the internally threaded rod 5 has a threaded hole, and the lower part of the internally threaded rod 5 is threadedly connected to the connecting frame 4. The upper part of the connecting frame 4 is an externally threaded rod. The threaded hole at the lower part of the internally threaded rod 5 matches the externally threaded rod at the upper part of the connecting frame 4. The lower part of the connecting frame 4 is a rectangular plate. A cutter 401 is located at the bottom of the connecting frame 4, connected to the bottom of the rectangular plate. The cutter 401 has a grid pattern with uniform grid size. Using the cutter 401 to cut the flexible circuit board will yield flexible circuit boards of uniform size (a complete flexible circuit board is cut into smaller flexible circuit boards). An electric slide rail 6 is located at the top center of the base 1. A placement plate 7 is connected to the moving part of the electric slide rail 6. Slide grooves 701 are opened on both the left and right sides of the placement plate 7, and two sliders 11 are slidably connected within each slide groove 701. Both sides of the sliders 11 have rectangular holes 111 at their closest points. A pressing plate 13 is slidably connected between the front left and right sliders 11 and between the rear left and right sliders 11. The pressing plate 13 slides within the rectangular holes 111. Each slider 11 has a limiting notch 15 that communicates with the rectangular holes 111 and is adapted to fit the pressing plate 13. Both ends of the pressing plate 13 can be respectively inserted into the limiting notches 15 on both sides. At this time, the limiting notches 15 restrict the movement of the pressing plate 13 within the rectangular holes 111. A third... Two elastic elements 14 are connected between the left and right sides of the extrusion plate 13 and the slider 11, and the second elastic elements 14 are located in the rectangular holes 111. The front and rear ends of the placement plate 7 are threaded with screws 8, and the ends of the two screws 8 that are close to each other are rotatably connected with hooks 9. The top of the placement plate 7 is symmetrically provided with openings 702, which are located directly below the screws 8 and hooks 9. The presence of openings 702 allows the hooks 9 to rotate freely 360 degrees (the hooks 9 rotate with the connection between them and the screws 8 as the center), which enhances the flexibility of the hooks 9.

[0025] like Figure 3 and Figure 4As shown, it also includes guide rods 10, first elastic elements 12, and blocking blocks 16. Guide rods 10 are provided in the slide grooves 701 on both the left and right sides. The guide rods 10 on both sides pass through the sliders 11 in the slide grooves 701. The guide rods 10 guide the sliders 11 to move in the slide grooves 701. First elastic elements 12 are symmetrically arranged on the front and rear sides of the two guide rods 10. One end of the first elastic element 12 is connected to the placement plate 7, and the other end is connected to the slider 11. A blocking block 16 is provided in the middle of the two guide rods 10. The blocking block 16 is made of flexible material. When the first elastic elements 12 on the front and rear sides drive the sliders 11 on the front and rear sides to approach the blocking block 16, the blocking block 16 can prevent the two sliders 11 from colliding. The blocking block 16 is made of flexible material, which can reduce the impact from the sliders 11.

[0026] like Figure 4 As shown, it also includes a sponge block 131. The bottom end of the extrusion plate 13 is provided with an arc-shaped sponge block 131. The sponge block 131 can prevent the extrusion plate 13 from damaging the surface of the flexible circuit board.

[0027] A flexible circuit board, slightly longer than the distance between the front and back of the cutter 401, is passed under the extrusion plate 13 and placed on the top of the placement plate 7. The extrusion plate 13 is then pressed downwards and inserted into the limiting notch 15. The second elastic element 14 changes from its initial state to a compressed state, and the sponge block 131 abuts against the flexible circuit board (at this time, the extrusion plate 13 is located in the middle of the top of the placement plate 7). While pulling the front extrusion plate 13 forward, the rear extrusion plate 13 is also pulled backward. During this process, the sponge block 131 compresses the flexible circuit board, causing the flexible circuit... The board is laid flat on top of the placement plate 7. The first elastic element 12 changes from its initial state to a compressed state. When the extrusion plate 13 approaches the hook 9, the hook 9 hooks the upper part of the extrusion plate 13 to prevent it from moving. At this time, the sponge block 131 on the extrusion plate 13 fixes the flattened flexible circuit board to the placement plate 7. The electric slide rail 6 is activated, and the electric slide rail 6 moves the placement plate 7 closer to the support frame 2. When the placement plate 7 moves directly below the cutter 401, the electric slide rail 6 closes, and the cylinder 3 is activated. The cylinder 3 drives the connecting frame 4 and the cutter 401 to move downward together. 401 divides the flexible circuit board on the placement plate 7 into flexible circuit boards of the same size. Then, the cylinder 3 drives the connecting frame 4 and the cutter 401 back to the initial position, and the electric slide rail 6 is activated, so that the placement plate 7 moves to the initial position, removes the flexible circuit board in the placement plate 7, removes the hook 9 on the extrusion plate 13, and the first elastic element 12 resets. The first elastic element 12 drives the extrusion plate 13 back to the initial position. The blocking block 16 can effectively prevent the two sliders 11 from colliding. The two extrusion plates 13 are pressed downward, so that the extrusion plates 13 are disengaged from the limiting notch 15 and return to the rectangular shape. Inside hole 111, the second elastic element 14 resets, and the second elastic element 14 drives the extrusion plate 13 back to the initial position. Repeat the above operation to place the next flexible circuit board on the placement plate 7 and use this device for cutting. If it is necessary to cut flexible circuit boards of different specifications, the existing connecting frame 4 and the cutter 401 can be rotated off and the new connecting frame 4 and the cutter 401 can be rotated and installed on the internal thread rod 5. Rotate the screws 8 on both sides to adjust the position of the hook 9 so that when the extrusion plate 13 moves to the edge of the flexible circuit board, the hook 9 can just hook the extrusion plate 13.

[0028] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A shearing device for circuit boards, comprising a base (1), characterized in that, It also includes a support frame (2), a cylinder (3), a connecting frame (4), a cutter (401), an internally threaded rod (5), an electric slide rail (6), a placement plate (7), a screw (8), a hook (9), a slider (11), a pressing plate (13), and a second elastic element (14). The support frame (2) is located on the left side of the top of the base (1). The cylinder (3) is located in the middle of the top of the support frame (2). An internally threaded rod (5) is connected to the air rod of the cylinder (3). The lower part of the internally threaded rod (5) is threadedly connected to the connecting frame (4). The cutter (401) is located at the bottom of the connecting frame (4). An electric slide rail (6) is located in the middle of the top of the base (1). The moving part of the electric slide rail (6) is connected to... A placement plate (7) is provided. Slide grooves (701) are provided on both the left and right sides of the placement plate (7). Two sliders (11) are slidably connected in the two slide grooves (701). A rectangular hole (111) is provided at the end of the sliders (11) on both the left and right sides that are close to each other. A pressing plate (13) is slidably connected between the two sliders (11) on the front side and between the two sliders (11) on the rear side. The pressing plate (13) slides in the rectangular hole (111). A second elastic element (14) is connected between the pressing plate (13) and the sliders (11). A screw (8) is threadedly connected to both the front and rear ends of the placement plate (7). A hook (9) is rotatably connected at the end of the two screws (8) that are close to each other.

2. A circuit board shearing device according to claim 1, characterized in that, The upper part of the connecting frame (4) is an external threaded rod, and the lower part is a rectangular plate.

3. A circuit board shearing device according to claim 2, characterized in that, The top of the placement plate (7) has symmetrical openings (702) at the front and back, and the openings (702) are located directly below the screw (8) and the hook (9).

4. A circuit board shearing device according to claim 3, characterized in that, Each slider (11) has a limiting notch (15) which communicates with the rectangular hole (111) and is compatible with the extrusion plate (13).

5. A circuit board shearing device according to claim 4, characterized in that, It also includes guide rods (10), and guide rods (10) are provided in the slide grooves (701) on both the left and right sides. The guide rods (10) on both sides pass through the sliders (11) in the slide grooves (701).

6. A circuit board shearing device according to claim 5, characterized in that, It also includes a first elastic element (12), which is symmetrically arranged on both the front and rear sides of the two guide rods (10). One end of the first elastic element (12) is connected to the placement plate (7), and the other end is connected to the slider (11).

7. A circuit board shearing device according to claim 6, characterized in that, It also includes a blocking block (16), with a blocking block (16) provided in the middle of both guide rods (10), and the blocking block (16) is made of flexible material.

8. A circuit board shearing device according to claim 7, characterized in that, It also includes a sponge block (131), and the bottom of the extrusion plate (13) is provided with an arc-shaped sponge block (131).

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