Flexible circuit board bending device

Abstract

The utility model relates to a circuit board bending device technical field especially a kind of flexible circuit board bending device, including bending table, the bottom of bending table is equipped with support plate, and bending table is equipped with lower mould, and bending cavity is opened in lower mould, backplate and side plate are equipped on bending table, vertical cylinder is equipped on backplate, upper mould is equipped on the cylinder stem of vertical cylinder, horizontal cylinder is equipped on side plate, sliding block is equipped on the cylinder stem of horizontal cylinder, supporting plate block is equipped on sliding block, and vice supporting cavity is opened in supporting plate block, first box and second box are equipped on the both sides of bending table, front end plate is equipped in the front end of bending table, guide slot is opened in bending table, and fixed socket is opened in front end plate. Realize the both ends of flexible circuit board original board to carry out stable positioning and stop, avoid the situation that two end leakage position is downward, it is convenient to take and place flexible circuit board original board.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board bending devices, and in particular to a flexible circuit board bending device. Background Technology

[0002] Flexible printed circuit boards (FPCBs) are circuit boards made from polyimide or polyester film as the substrate through processes such as printing and etching. They are widely used in mobile phones, tablets, automotive electronics, medical devices and other fields.

[0003] In the production process of flexible circuit boards, bending is usually required to meet the product's requirements for flexibility. Therefore, bending equipment for flexible circuit boards is needed. By changing different mold sets, the flexible circuit board (the original flexible circuit board without soldered electronic components) is bent to ensure that the conductive layer and insulating substrate are not damaged during the bending process, thereby ensuring the reliability and stability of the finished product after soldering electronic components onto the flexible circuit board.

[0004] However, with existing flexible circuit board bending devices, when the original flexible circuit board is placed on the bending cavity of the lower mold, it may tilt if it is not carefully subjected to external force collision. This will affect the bending and pressing effect of the original flexible circuit board in the later stage.

[0005] Furthermore, when the flexible circuit board is placed on the lower mold, some of the wider parts of the board body will have their side walls exposed in the bending cavity of the lower mold. This will cause the exposed parts of the board body to droop downwards, affecting the subsequent bending and folding operations on the flexible circuit board.

[0006] In addition, existing flexible circuit board bending devices are not only inconvenient to handle the original flexible circuit board, but also inconvenient to place the original flexible circuit board after bending and pressing.

[0007] Therefore, we designed a flexible circuit board bending device to meet the needs of practical applications. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a flexible circuit board bending device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] Design a flexible circuit board bending device, including a bending table, a support plate at the bottom of the bending table, a lower mold mounted on the bending table, a bending cavity formed on the lower mold, a back plate and a side plate on the bending table, a vertical cylinder on the back plate, an upper mold on the cylinder rod of the vertical cylinder, a horizontal cylinder on the side plate, a sliding block on the cylinder rod of the horizontal cylinder, a support plate on the sliding block, a secondary support cavity formed on the support plate, and a first placement box and a second placement box on both sides of the bending table;

[0011] The bending table has a front end plate at its front end, and a guide groove is provided in the bending table, with a smooth layer inside the guide groove;

[0012] The front end plate is provided with a fixed insertion port, and both the first and second boxes are provided with material troughs and fixed insertion blocks.

[0013] In detail, the horizontal cylinder consists of two sets symmetrically arranged on the left and right, and the bending cavity and the auxiliary support cavity are both V-shaped inner grooves that match the V-shaped protrusion of the upper mold.

[0014] In detail, the sliding block has an overall T-shaped structure and its lower end face is slidably engaged with the guide groove. The smooth layer is a chromium-plated coating that is uniformly coated along the inner wall of the guide groove and has a thickness of one to two micrometers.

[0015] In detail, both the front and rear ends of the first and second boxes are provided with lifting handles.

[0016] In detail, the inner wall of the fixed insertion port is provided with a damping layer with a thickness of 30 to 40 micrometers, and the damping layer is in contact with the outer wall of the fixed insertion block by compression.

[0017] In detail, the fixed insertion block has an overall bent structure and is vertically inserted into the fixed insertion port, and the lower corner surface of the fixed insertion block is provided with an arc surface.

[0018] In detail, an inner opening is provided between the bending table and the front end plate, and a protective strip with a thickness of eighty to ninety micrometers is provided on the inner wall of the inner opening.

[0019] The design scheme proposed in this utility model has the following beneficial effects in application:

[0020] 1. This utility model, by setting a symmetrical cylinder guide structure on the bending table and a symmetrical sliding block structure, can stably position and block both ends of the flexible circuit board when it is placed on the bending cavity of the lower mold, thus preventing the flexible circuit board from tilting in the bending cavity due to external force collision, thereby ensuring the bending and pressing effect of the flexible circuit board in the later stage.

[0021] 2. This utility model, by setting a support plate structure with a secondary support cavity on the sliding block, can effectively and stably support the bottom of the flexible circuit board with exposed bending cavities at both ends, avoiding the situation where the exposed parts at both ends droop downwards, and effectively ensuring the bending and pressing operation of the flexible circuit board in the subsequent process.

[0022] 3. The present invention, through the design of a snap-fit ​​first and second housing, allows for easy removal of the flexible circuit board from the first housing and also facilitates the placement of the flexible circuit board after bending and folding into the second housing. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the first and second housings of this utility model in an unpositioned and inserted state;

[0024] Figure 2 This is a three-dimensional schematic diagram of the first and second housings of this utility model in the positioned and inserted state.

[0025] Figure 3 For the present utility model Figure 1 A three-dimensional schematic diagram of a sliding block with a supporting plate;

[0026] Figure 4 For the present utility model Figure 2 A three-dimensional schematic diagram of the first placement box;

[0027] Figure 5 For the present utility model Figure 1 A three-dimensional schematic diagram of the bending platform from below.

[0028] In the diagram: 1 Bending table; 11 Support plate; 12 Lower mold; 13 Bending cavity; 2 Back plate; 21 Vertical cylinder; 22 Upper mold; 3 Side plate; 31 Horizontal cylinder; 32 Sliding block; 33 Support plate; 34 Secondary support cavity; 4 Guide groove; 41 Smooth layer; 5 Front end plate; 51 Fixed insertion port; 52 Damping layer; 6 Inner inlet; 61 Protective strip; 7 First placement box; 71 Material trough; 72 Lifting handle; 8 Fixed insertion block; 81 Arc surface; 9 Second placement box. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-5A flexible circuit board bending device includes a bending table 1, a support plate 11 at the bottom of the bending table 1, a lower mold 12 installed on the bending table 1, a bending cavity 13 opened on the lower mold 12, a back plate 2 and a side plate 3 on the bending table 1, a vertical cylinder 21 on the back plate 2, an upper mold 22 on the cylinder rod of the vertical cylinder 21, a horizontal cylinder 31 on the side plate 3, a sliding block 32 on the cylinder rod of the horizontal cylinder 31, a support plate 33 on the sliding block 32, a secondary support cavity 34 opened on the support plate 33, and a first placement box 7 and a second placement box 9 on both sides of the bending table 1.

[0031] The bending table 1 has a front plate 5 at its front end and a guide groove 4 with a smooth layer 41 inside the guide groove 4.

[0032] The front end plate 5 has a fixed insertion port 51, and the first placement box 7 and the second placement box 9 are both provided with a material trough 71 and a fixed insertion block 8.

[0033] It should be further explained that the horizontal cylinders 31 are two sets symmetrically arranged on the left and right. The bending cavity 13 and the auxiliary support cavity 34 are both V-shaped inner grooves that match the V-shaped protruding upper mold 22. This not only enables stable support of the two exposed parts of the flexible circuit board, but also enables the downward bending operation of the flexible circuit board below through the matching upper mold 22.

[0034] It should be further noted that the sliding block 32 has an overall T-shaped structure and its lower end face is slidably engaged with the guide groove 4, so as to realize the guiding sliding of the sliding blocks 32 on both sides and ensure that the sliding blocks 32 stably block the two ends of the flexible circuit board.

[0035] The smooth layer 41 is a chromium-plated coating that is uniformly applied along the inner wall of the guide groove 4 and has a thickness of one to two micrometers. The chromium-plated coating has excellent hardness and wear resistance, as well as good smoothness, which improves the smoothness of the sliding block 32 in the guide groove 4.

[0036] It should be further noted that the front and rear ends of the first box 7 and the second box 9 are provided with handles 72, which make it convenient to take out the first box 7 and the second box 9.

[0037] It should be further noted that the inner wall of the fixed insertion port 51 is provided with a damping layer 52 with a thickness of 30 to 40 micrometers. The damping layer 52 is in contact with the outer wall of the fixed insertion block 8 by compression. The damping layer 52 is a silicone pad with high elasticity and damping, wear resistance and durability, which further improves the damping and anti-slip performance of the fixed insertion block 8 after it is inserted into the fixed insertion port 51.

[0038] It should be further noted that the fixed insertion block 8 has a bent structure and is vertically inserted into the fixed insertion port 51, which realizes the stable insertion of the first placement box 7 and the second placement box 9 onto the front end plate 5.

[0039] An arc surface 81 is provided on the lower corner surface of the fixed insertion block 8 to enable the fixed insertion block 8 to be smoothly inserted into the fixed insertion port 51.

[0040] It should be further noted that an inset opening 6 is provided between the bending table 1 and the front end plate 5, which facilitates the entry of staff and allows them to get closer to the lower mold 12 for easy inspection and bending operations.

[0041] The inner wall of the inner port 6 is provided with a protective strip 61 with a thickness of 80 to 90 micrometers. The protective strip 61 is made of highly elastic polyurethane rubber. When the staff enters the inner port 6 to perform operations, they can avoid scratches caused by the metal inner port 6.

[0042] Working method: Specifically, a flexible circuit board substrate can be easily taken from the material trough 71 of the first placement box 7 and placed on the bending cavity 13. Then, the horizontal cylinder 31 is activated, and the cylinder rods of the two horizontal cylinders 31 extend synchronously, driving the sliding blocks 32 on both sides to slide in opposite directions along the guide groove 4. When the sliding blocks 32 on both sides are stably positioned and blocked by the two ends of the flexible circuit board substrate, the horizontal cylinder 31 is stopped. Then, the vertical cylinder 21 is activated, and the cylinder rod of the vertical cylinder 21 extends downward and drives the upper mold 22 to move downward at a uniform speed. The V-shaped protrusion of the upper mold 22 will press down and bend the flexible circuit board substrate in the bending cavity 13, ensuring that the flexible circuit board substrate has the bending degree of the bending cavity 13, thereby ensuring that the conductive layer and insulating substrate of the finished flexible circuit board will not be damaged during the subsequent bending process (existing technology).

[0043] As the sliding blocks 32 on both sides stably block the two ends of the flexible circuit board, the flexible circuit board can be prevented from tilting in the bending cavity 13 due to external force collision, thus ensuring the bending and folding effect of the flexible circuit board in the later stage.

[0044] Furthermore, after a flexible circuit board can be easily taken from the material trough 71 of the first placement box 7 and placed on the bending cavity 13, the horizontal cylinder 31 can be activated. The cylinder rods of the horizontal cylinders 31 on both sides will extend synchronously, driving the sliding blocks 32 on both sides to slide in opposite directions along the guide groove 4. This will drive the supporting plates 33 on both sides to slide in opposite directions. When the secondary supporting cavity 34 of the supporting plate 33 effectively and stably supports the part of the flexible circuit board that is exposed in the bending cavity 13, the horizontal cylinder 31 is stopped, and the subsequent bending and pressing operation can be carried out (existing technology). This avoids the situation where the exposed parts at both ends of the flexible circuit board droop downwards, ensuring the subsequent bending and pressing operation of the flexible circuit board.

[0045] In addition, a flexible circuit board can be easily taken out from the material trough 71 of the first placement box 7 and placed on the bending cavity 13. After the bending and pressing operation is completed (existing technology), the flexible circuit board can be placed into the second placement box 9, which is very convenient.

[0046] 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 flexible circuit board bending device, comprising a bending table (1), characterized in that: The bending table (1) has a support plate (11) at the bottom, a lower mold (12) is installed on the bending table (1), a bending cavity (13) is opened on the lower mold (12), a back plate (2) and a side plate (3) are provided on the bending table (1), a vertical cylinder (21) is provided on the back plate (2), an upper mold (22) is provided on the cylinder rod of the vertical cylinder (21), a horizontal cylinder (31) is provided on the side plate (3), a sliding block (32) is provided on the cylinder rod of the horizontal cylinder (31), a support plate (33) is provided on the sliding block (32), a secondary support cavity (34) is opened on the support plate (33), and a first placement box (7) and a second placement box (9) are provided on both sides of the bending table (1). The bending table (1) has a front end plate (5) at its front end and a guide groove (4) with a smooth layer (41) inside the guide groove (4). The front end plate (5) is provided with a fixed insertion port (51), and the first box (7) and the second box (9) are provided with a material trough (71) and a fixed insertion block (8).

2. The flexible circuit board bending device according to claim 1, characterized in that: The horizontal cylinder (31) consists of two sets symmetrically arranged on the left and right. The bending cavity (13) and the auxiliary support cavity (34) are both V-shaped inner grooves that match the V-shaped protruding upper mold (22).

3. The flexible circuit board bending device according to claim 1, characterized in that: The sliding block (32) is T-shaped and its lower end face is slidably engaged with the guide groove (4). The smooth layer (41) is a chromium-plated coating that is uniformly coated along the inner wall of the guide groove (4) and has a thickness of one to two micrometers.

4. The flexible circuit board bending device according to claim 1, characterized in that: The first box (7) and the second box (9) are both provided with handles (72) on the front and rear ends.

5. The flexible circuit board bending device according to claim 1, characterized in that: The inner wall of the fixed insertion port (51) is provided with a damping layer (52) with a thickness of 30 to 40 micrometers, and the damping layer (52) is in contact with the outer wall of the fixed insertion block (8).

6. The flexible circuit board bending device according to claim 1, characterized in that: The fixed insertion block (8) has a bent structure and is vertically inserted into the fixed insertion port (51). The lower corner surface of the fixed insertion block (8) is provided with an arc surface (81).

7. The flexible circuit board bending device according to claim 1, characterized in that: An inset opening (6) is provided between the bending platform (1) and the front end plate (5), and a protective strip (61) with a thickness of eighty to ninety micrometers is provided on the inner wall of the inset opening (6).

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