A lamination structure for a flexible printed circuit board

Abstract

This utility model relates to the field of circuit board lamination technology, and more particularly to a lamination structure for flexible printed circuit boards, including a worktable and a limiting frame. The limiting frame is fixedly connected to the outer surface of the worktable. A limiting component is installed on the worktable. The limiting component includes a lamination table, a placement plate, first corner blocks, a cylinder, and a buffer rod. The lamination table is slidably connected to the worktable, and the placement plate is slidably connected inside the lamination table. Multiple first corner blocks are fixedly connected to the placement plate. This utility model, through the cooperative action of the first corner blocks, screws, placement plates, and other parts, allows the second corner blocks to be adjusted according to circuit boards of different thicknesses, improving the universal applicability of the limiting component. At the same time, with the joint cooperation of the first and second corner blocks, it can ensure that the circuit board will not be misaligned during the lamination process, avoiding deviations and ensuring lamination quality.

Description

Technical Field

[0001] This utility model relates to the field of circuit board lamination technology, and in particular to a lamination structure for flexible printed circuit boards. Background Technology

[0002] As the "neural network" of electronic devices, the realization of the multi-layer structure of printed circuit boards (PCBs) depends on the precise execution of the lamination process. The lamination structure combines the insulating substrate, conductive layer and reinforcing material into a whole through high temperature and high pressure, which is the key link that determines the mechanical strength, electrical performance and reliability of PCBs.

[0003] Existing printed circuit board lamination structures, due to the inability to limit the circuit board's position during use, can easily cause slight misalignment between the two circuit boards when the lamination plate is pressed together, affecting the lamination effect. In addition, the simple limiting components cannot be changed according to the thickness of the circuit board, thus lacking wide applicability. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: When using the existing printed circuit board pressing structure, the circuit board cannot be limited, which can easily cause slight misalignment between the two circuit boards when the pressing plate presses the circuit board, affecting the pressing effect. At the same time, the simple limiting component cannot be changed according to the thickness of the circuit board and does not have a wide range of applicability. Therefore, a flexible printed circuit board pressing structure is proposed.

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

[0006] A lamination structure for a flexible printed circuit board includes a worktable and a limiting frame, wherein the limiting frame is fixedly connected to the outer surface of the worktable.

[0007] The workbench is equipped with a limiting component, which includes a pressing platform, a placement plate, first corner blocks, cylinders, and a buffer rod. The pressing platform is slidably connected to the workbench, and the placement plate is slidably connected inside the pressing platform. Multiple first corner blocks are fixedly connected to the placement plate. The outer surface of each first corner block has a screw hole, and a screw rod is threaded into the screw hole. One end of the screw rod is fixedly connected to a second corner block. Multiple cylinders are fixedly connected to the inner wall of the pressing platform. A circular plate is slidably connected inside each cylinder, and the circular plate is fixedly connected to the placement plate via the buffer rod.

[0008] Preferably, the first corner block is L-shaped, the second corner block is L-shaped, one end of the buffer rod is disc-shaped, and a buffer spring is fixedly connected between the circular plate and the inner wall of the cylinder.

[0009] Preferably, the inner walls on both sides of the limiting frame are respectively provided with sliding grooves, and a slider is slidably connected in the sliding groove. The slider is fixedly connected to the pressing table, and the pressing table is slidably connected to the limiting frame.

[0010] Preferably, a circular hole is provided on the outer surface of the slider, and a locking rod is slidably connected in the circular hole. The locking rod passes through the limiting frame and is slidably connected to the limiting frame. A straight spring is fixedly connected between one end of the locking rod and the outer surface of the pressing table.

[0011] Preferably, a guide rail is fixedly connected to the outer surface of the workbench, a lifting rod is rotatably connected inside the guide rail, a lifting plate is threadedly connected to the outer surface of the lifting rod, and the lifting plate is slidably connected to the guide rail.

[0012] Preferably, the outer surface of the lifting plate is provided with a pressing plate, and a plurality of sliding rods are provided between the lifting plate and the limiting frame, and the lifting plate is slidably connected to the sliding rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the cooperation of the first corner block, screw, placement plate and other parts, the second corner block can be adjusted according to the circuit board of different thicknesses, which improves the universality of the limiting component. At the same time, with the cooperation of the first corner block and the second corner block, it can be ensured that the circuit board will not be misaligned during the pressing operation, avoid deviation, and ensure the pressing quality.

[0015] 2. The combined action of components such as cylinder, buffer rod, and circular plate causes the buffer spring to bend under force, absorbing part of the impact force, preventing the pressing plate from acting directly on the circuit board, reducing the impact force on the circuit board, protecting the circuit board, and improving the pressing effect.

[0016] 3. Through the coordinated action of components such as sliders, limit frames, and locking rods, the pressing table can be removed from the worktable. The entire process of removing the circuit board is carried out away from the worktable and outside the range of the pressing plate, ensuring the safety of the operator and preventing injuries to the operator's arms due to improper operation. This improves the safety of the pressing process and protects the lives of the workers. Attached Figure Description

[0017] Figure 1 This is a front view of the lamination structure of a flexible printed circuit board proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the limiting frame structure of the lamination structure of a flexible printed circuit board proposed in this utility model.

[0019] Figure 3This is a schematic diagram of the slider structure of the pressing structure of a flexible printed circuit board proposed in this utility model;

[0020] Figure 4 This is an exploded view of the pressing platform structure of the pressing structure of the flexible printed circuit board proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of the cylinder in the pressing structure of the flexible printed circuit board proposed in this utility model.

[0022] In the diagram: 1. Workbench, 2. Guide rail, 3. Lifting rod, 4. Lifting plate, 5. Limiting frame, 6. Pressing table, 7. Locking rod, 8. Straight spring, 9. Slider, 10. Placement plate, 11. First corner block, 12. Second corner block, 13. Screw, 14. Cylinder, 15. Buffer rod, 16. Buffer spring, 17. Circular plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0025] Reference Figure 1 A pressing structure for a flexible printed circuit board includes a worktable 1 and a limiting frame 5. The limiting frame 5 is open for sliding a pressing table 6. The limiting frame 5 is fixedly connected to the outer surface of the worktable 1. A guide rail 2 is fixedly connected to the outer surface of the worktable 1. The guide rail 2 is hollow. A lifting rod 3 is rotatably connected inside the guide rail 2. One end of the lifting rod 3 passes through the guide rail 2 and is connected to a servo motor. The servo motor can drive the lifting rod 3 to rotate. The rotation of the lifting rod 3 drives a lifting plate 4 and a pressing plate to act on the printed circuit board. The lifting plate 4 is threadedly connected to the outer surface of the lifting rod 3. The lifting plate 4 is slidably connected to the guide rail 2. A pressing plate is provided on the outer surface of the lifting plate 4. Multiple sliding rods are provided between the lifting plate 4 and the limiting frame 5. The lifting plate 4 is slidably connected to the sliding rods.

[0026] Reference Figure 4-5A limiting component is installed on the workbench 1. This limiting component includes a pressing table 6, a placement plate 10, first corner blocks 11, cylinders 14, and buffer rods 15. The pressing table 6 is slidably connected to the workbench 1 and is hollow. The placement plate 10 is slidably connected inside the pressing table 6. Multiple first corner blocks 11 are fixedly connected to the placement plate 10. Screw holes are formed on the outer surface of each first corner block 11, and screws 13 are threaded into these holes. One end of the screw 13 is fixedly connected to a second corner block 12. Both the first and second corner blocks 11 and 12 are L-shaped. Thin rubber pads are provided on the inner walls of both the first and second corner blocks 11 and 12 where they contact the circuit board to prevent damage. Multiple cylinders 14 are fixedly connected to the inner wall of the pressing table 6. Figure 5 As shown, a circular plate 17 is slidably connected inside the cylinder 14. The circular plate 17 is arranged in a disc shape. The circular plate 17 is fixedly connected to the placement plate 10 through a buffer rod 15. One end of the buffer rod 15 is arranged in a disc shape. A buffer spring 16 is fixedly connected between the circular plate 17 and the inner wall of the cylinder 14. The buffer spring 16 has a large elastic force.

[0027] Reference Figure 2-3 The inner walls of both sides of the limiting frame 5 are respectively provided with sliding grooves, and sliders 9 are slidably connected in the sliding grooves. The sliders 9 and the sliding grooves work together to ensure that the pressing table 6 can accurately reach the pressing position. The sliders 9 are fixedly connected to the pressing table 6, and the pressing table 6 is slidably connected to the limiting frame 5. Figure 3 As shown, a circular hole is provided on the outer surface of the slider 9, and a locking rod 7 is slidably connected in the circular hole. The locking rod 7 passes through the limiting frame 5 and is slidably connected to the limiting frame 5. A straight spring 8 is fixedly connected between one end of the locking rod 7 and the outer surface of the pressing table 6. When the pressing table 6 is in the limiting frame 5, the locking rod 7 is in the circular hole of the slider 9, which limits the slider 9 and the pressing table 6, ensuring the stability of the pressing operation and restricting the movement of the pressing table 6.

[0028] In this invention, the first corner block 11 and the second corner block 12 are first adjusted according to the thickness of the two circuit boards. Rotating the screw 13 one revolution causes the second corner block 12 to rotate one revolution, so that the screw 13 rises a certain distance from the first corner block 11. At this time, the second corner block 12 rises a certain distance. This adjustment is continued according to the thickness of the circuit board until the second corner block 12 can be positioned in the middle of the circuit board thickness. At this time, under the action of multiple second corner blocks 12, the circuit board can be completely locked, ensuring that it will not move. Thus, with the cooperation of the first corner block 11 and the second corner block 12, the pressing work can be guaranteed to be without deviation, ensuring the pressing quality. When the pressing plate moves downward to press the circuit board, the placement plate 10 is subjected to pressure, which causes the buffer rod 15 to move downward. The downward movement of the buffer rod 15 causes the circular plate 17 to squeeze the buffer spring 16. The buffer spring 16 bends under force, absorbing part of the impact force, preventing the pressing plate from directly acting on the circuit board, reducing the impact force on the circuit board, protecting the circuit board, and improving the pressing effect.

[0029] When it is necessary to remove the circuit board after the pressing work is completed, first pull the two locking rods 7. The two locking rods 7 are pulled out from the slider 9, releasing the limiting effect on the slider 9. At the same time, the limiting effect on the pressing table 6 is also released. At this time, the worker can pull the pressing table 6 to remove the pressing table 6 from the workbench 1, and then remove the two circuit boards on the pressing table 6. The entire process of removing the circuit boards is carried out away from the workbench 1 and out of the range of action of the pressing plate, ensuring the safety of the worker's operation, avoiding the phenomenon of injury to the worker's arm due to improper operation, improving the safety of the pressing work, and protecting the life safety of the worker.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lamination structure for a flexible printed circuit board, comprising a worktable (1) and a limiting frame (5), characterized in that, The limiting frame (5) is fixedly connected to the outer surface of the workbench (1); The workbench (1) is equipped with a limiting component, which includes a pressing table (6), a placement plate (10), a first corner block (11), a cylinder (14), and a buffer rod (15). The pressing table (6) is slidably connected to the workbench (1). The placement plate (10) is slidably connected inside the pressing table (6). Multiple first corner blocks (11) are fixedly connected to the placement plate (10). The outer surface of the first corner block (11) is provided with a screw hole. A screw rod (13) is threaded into the screw hole. One end of the screw rod (13) is fixedly connected to a second corner block (12). Multiple cylinders (14) are fixedly connected to the inner wall of the pressing table (6). A circular plate (17) is slidably connected inside the cylinder (14). The circular plate (17) is fixedly connected to the placement plate (10) through the buffer rod (15).

2. The lamination structure of a flexible printed circuit board according to claim 1, characterized in that, The first corner block (11) is L-shaped, the second corner block (12) is L-shaped, one end of the buffer rod (15) is disc-shaped, and a buffer spring (16) is fixedly connected between the circular plate (17) and the inner wall of the cylinder (14).

3. The lamination structure of a flexible printed circuit board according to claim 1, characterized in that, The inner walls on both sides of the limiting frame (5) are respectively provided with sliding grooves, and a slider (9) is slidably connected in the sliding groove. The slider (9) is fixedly connected to the pressing table (6), and the pressing table (6) is slidably connected to the limiting frame (5).

4. The lamination structure of a flexible printed circuit board according to claim 3, characterized in that, The outer surface of the slider (9) has a circular hole, and a locking rod (7) is slidably connected in the circular hole. The locking rod (7) passes through the limiting frame (5) and is slidably connected to the limiting frame (5). One end of the locking rod (7) is fixedly connected to the outer surface of the pressing table (6) with a straight spring (8).

5. The lamination structure of a flexible printed circuit board according to claim 1, characterized in that, The workbench (1) has a guide rail (2) fixedly connected to its outer surface. A lifting rod (3) is rotatably connected inside the guide rail (2). A lifting plate (4) is threadedly connected to the outer surface of the lifting rod (3). The lifting plate (4) is slidably connected to the guide rail (2).

6. The lamination structure of a flexible printed circuit board according to claim 5, characterized in that, The outer surface of the lifting plate (4) is provided with a pressing plate, and multiple sliding rods are provided between the lifting plate (4) and the limiting frame (5). The lifting plate (4) is slidably connected to the sliding rods.

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