Flexible circuit board protective film die cutting piece

Abstract

The utility model discloses a flexible circuit board protective film die cutting member, which relates to the technical field of protective film die cutting members, and comprises a connecting member, the bottom of the connecting member is connected with a die cutting plate through a hydraulic cylinder, two sides of the die cutting plate are respectively provided with a first cavity, one end of the die cutting plate is provided with a second cavity, and the second cavity is connected with the connecting member through a hydraulic cylinder. And lead screws are rotationally connected into the first cavities correspondingly and movably penetrate through the two ends of the connecting rod correspondingly. When a protective film is adhered to the top of the flexible circuit board, the die cutting piece can be driven to move downwards, so that the two sides of the die cutting piece drive the buffer structures to reduce impact between the die cutting piece and the flexible circuit board, and meanwhile, the rollers are driven to move on the top of the flexible circuit board; therefore, the rolling wheel rotates through the connecting rod through the friction force between the rolling wheel and the flexible circuit board, the protective film can be extruded to be flatly adhered to the top of the flexible circuit board, and bubbles between the protective film and the flexible circuit board are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film die-cut pieces, in particular to a flexible circuit board protective film die-cut piece. Background Art

[0002] Flexible circuit board protective film is a thin film material used to protect flexible circuit boards. It is usually made of high-performance materials such as polyimide and has excellent insulation, high temperature resistance, corrosion resistance and other characteristics. The function of flexible circuit board protective film is mainly to prevent flexible circuit boards from being damaged or contaminated during manufacturing, transportation and use. It can effectively protect the electronic components and circuits on the flexible circuit boards and prevent them from being affected by the external environment, such as moisture, dust, chemicals, etc.

[0003] Flexible circuit board protective film die-cut parts have many functions when used, such as effectively preventing dust, moisture and other impurities from polluting or damaging the flexible circuit board; it also has the function of enhancing the mechanical properties of the flexible circuit board, such as increasing hardness and impact resistance; it can make the flexible circuit board more beautiful and tidy, and improve the overall quality of the product; it can play a protective role and prevent scratches, etc.

[0004] At present, when using the die-cut parts of the flexible circuit board protective film, it is necessary to first select a suitable protective mold according to the actual situation of the flexible circuit board, and then adhere the protective mold to the top of the flexible circuit board, and then use a die-cutting machine to cut it after the adhesion is completed, so that the protective film can protect the flexible circuit board.

[0005] However, in the process of adhering the protective film to the top of the flexible circuit board, it is necessary to ensure that the adhesive bottom protective film is flat and free of bubbles, and it is necessary to avoid squeezing with the top of the flexible circuit board to cause damage to the flexible circuit board, thereby affecting its use. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a flexible circuit board protective film die-cut part to solve the technical problem that in the process of adhering the protective film to the top of the flexible circuit board, it is necessary to ensure that the adhered lower-end protective film is flat and free of bubbles, and to avoid extrusion with the top of the flexible circuit board, causing damage to the flexible circuit board, thereby affecting its use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible circuit board protective film die-cutting part, including a connecting part, the bottom of the connecting part is connected to a die-cutting plate through a hydraulic cylinder, first cavities are provided on both sides of the die-cutting plate, and a second cavity is provided at one end of the die-cutting plate, a group of the first cavities are rotatably connected with a screw rod, and the screw rods are respectively movable through the two ends of a connecting rod, a group of one ends of the screw rods are movably inserted through one side of the second cavity, and a driving structure is provided in the second cavity, and a roller is rotatably connected to the outer surface of the connecting rod.

[0008] By adopting the above technical solution, when the connecting rod is driven to move by the screw rod, the connecting rod can synchronously drive the roller to move left and right on its outer surface. Therefore, when a protective film needs to be adhered to the outer surface of the flexible circuit board, the top of the flexible circuit board can be squeezed by the roller, so that the protective film is squeezed and adhered to the top. Since the roller slides slowly on the top, it is beneficial for the protective film to adhere smoothly to the top of the flexible circuit board and avoid bubbles between the protective film and the flexible circuit board.

[0009] The utility model is further configured such that the driving structure includes a worm rotatably connected in the second cavity, and one end of the worm movably passes through one end of the second cavity and extends to the outside where an output end of a motor is connected, the motor is fixedly connected to one side of the die-cutting plate through a silencer box, a group of worm wheels are meshed on the outer surface of the worm, and the worm wheels are respectively arranged on the outer surfaces of the corresponding screw rods.

[0010] By adopting the above technical solution, the worm can be driven to rotate by a motor, and the worm can synchronously drive the worm wheel and the lead screw to rotate, which is beneficial to drive the connecting rod to move on its outer surface through the rotation of the lead screw, and the setting of a group of lead screws makes it only move left and right in the die-cutting board, so as to better adhere the protective film to the top of the flexible circuit board.

[0011] The utility model is further configured that both ends of the die-cutting plate are fixedly connected with connecting blocks, and the bottom of the connecting block is connected with a movable block through a spring.

[0012] By adopting the above technical solution, when the bottom of the movable block is squeezed, it can be driven upward by the spring, which is beneficial to play a buffering role when the die-cutting plate contacts the flexible circuit board, avoiding damage caused by excessive squeezing of the top of the flexible circuit board.

[0013] The utility model is further configured that the connecting block is provided with a group of limit grooves, and a limit block matching the size of the limit groove is movably connected in the limit groove, the limit block is fixedly connected to the top of the movable block, and the top of the limit block is fixedly connected to a connecting plate.

[0014] By adopting the above technical solution and setting the limit groove and the limit block, the stability of the movable block can be increased when the movable block moves upward through the spring, thereby avoiding shaking of the movable block due to poor stability during movement, which affects its use.

[0015] The utility model is further configured that a group of adjacent sides of the first cavities are provided with sliding grooves, and the connecting rods slide in the sliding grooves.

[0016] By adopting the above technical solution, when the lead screw drives the connecting rod to move left and right, the connecting rod drives the roller to move in the middle of the die-cutting board through the slide groove, which facilitates better adhesion of the protective film to the outer surface of the flexible circuit board.

[0017] The utility model is further configured that the outer surface of the roller is provided with a rubber ring.

[0018] By adopting the above technical solution, when the connecting rod drives it to move in the middle of the die-cutting plate, it can produce a certain amount of extrusion on the top of the flexible circuit board, so that the protective film can adhere to its surface. Moreover, since the rubber is soft and elastic, it will not be damaged when it is squeezed with the top of the flexible circuit board, thereby avoiding affecting the later use of the flexible circuit board.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] The utility model can drive the die-cutting part to move downward when a protective film is adhered to the top of the flexible circuit board, so that the buffer structures on both sides thereof drive the buffer structures to reduce the impact between the die-cutting part and the flexible circuit board, and at the same time drive the roller to move on the top of the flexible circuit board. Therefore, the roller rotates through the connecting rod through the friction between the roller and the flexible circuit board, so that the protective film can be squeezed and adhered to the top of the flexible circuit board smoothly, and bubbles between the protective film and the flexible circuit board can be avoided. The rubber ring arranged on the outer surface of the roller will not damage the top of the flexible circuit board when it is squeezed because the rubber is soft and elastic, which is conducive to adhering the protective film to the top of the flexible circuit board, and avoiding the extrusion generated during the adhesion process to cause damage to the flexible circuit board, which affects the use of the flexible circuit board in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 For this utility model Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the die-cutting piece of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the die-cutting part of the utility model;

[0025] Figure 5 It is a cross-sectional view of the three-dimensional structure of the die-cutting piece of the utility model.

[0026] In the figure: 1. connecting part; 2. hydraulic cylinder; 3. die-cutting plate; 4. first cavity; 5. second cavity; 6. screw; 7. slide groove; 8. connecting rod; 9. worm gear; 10. worm; 11. motor; 12. muffler; 13. roller; 14. rubber ring; 15. connecting block; 16. movable block; 17. spring; 18. limit groove; 19. limit block; 20. connecting plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A flexible circuit board protective film die-cut part, such as Figure 1-5 As shown, it includes a connector 1, and a die-cutting board 3 is connected to the bottom of the connector 1 through a hydraulic cylinder 2. The die-cutting board 3 can be driven up and down by the hydraulic cylinder 2, so as to better adhere a protective film to the top of the flexible circuit board. The die-cutting board 3 is an existing structure, and the protective film can be cut and pressed in the shape of the flexible circuit board by means of hot pressing set at the bottom thereof.

[0030] Then, first cavities 4 are provided on both sides of the die-cutting plate 3, and a second cavity 5 is provided at one end of the die-cutting plate 3. A set of first cavities 4 are rotatably connected with screw rods 6, and the screw rods 6 respectively move through the two ends of the corresponding connecting rods 8, so that when the screw rods 6 rotate in the first cavity 4, the connecting rods 8 can be driven to move left and right in the middle of the first cavity 4. One end of a set of screw rods 6 moves through one side of the second cavity 5, and a driving structure is provided in the second cavity 5, which is conducive to the driving structure driving the screw rods 6 to move. A roller 13 is rotatably connected to the outer surface of the connecting rod 8, so when it is necessary to When the protective film is adhered to the top of the flexible circuit board, the roller 13 can be subjected to friction with the flexible circuit board, so that it can be rolled on the top through the connecting rod 8, which is conducive to smoothly adhering the protective film on the top of the flexible circuit board and avoiding gaps between the protective film and the flexible circuit board, so as to better protect the flexible circuit board through the protective film. At the same time, a rubber ring 14 is provided on the outer surface of the roller 13. Due to the specific softness and elasticity of the rubber, when it is squeezed on the top of the flexible circuit board, it will not be damaged due to excessive pressure, thereby affecting the use of the flexible circuit board.

[0031] The driving structure includes a worm 10 rotatably connected in the second cavity 5, and one end of the worm 10 moves through one end of the second cavity 5 and extends to the outside where the output end of the motor 11 is connected. The motor 11 can drive the worm 10 to rotate forward and reverse in the second cavity 5, and the motor 11 is fixedly connected to one side of the die-cutting board 3 through a silencer box 12. The position of the motor 11 is fixed by the silencer box 12, and the silencer box 12 can reduce the noise generated by the motor 11 during operation. A group of worm wheels 9 are meshed on the outer surface of the worm 10, and the worm wheels 9 are respectively arranged on the outer surfaces of the corresponding lead screws 6. Therefore, the rotation of the worm 10 can drive the worm wheel 9 and the lead screw 6 to move synchronously, so as to better drive the connecting rod 8 to move in the die-cutting board 3.

[0032] At the same time, a slide groove 7 is provided on the adjacent side of a group of first cavities 4, and the connecting rod 8 slides in the slide groove 7, which is conducive to moving the connecting rod 8 and the roller 13 in the middle of the die-cutting plate 3 through the slide groove 7, so as to better adhere the protective film to the top of the flexible circuit board.

[0033] Further, connecting blocks 15 are fixedly connected to both ends of the die-cutting board 3, and the bottom of the connecting block 15 is connected to a movable block 16 through a spring 17. When the hydraulic cylinder 2 drives the die-cutting board 3 to move downward, an upward pressure will be generated on the movable block 16, so the extrusion spring 17 drives the movable block 16 to move upward, so as to better play a buffering role between the die-cutting board 3 and the flexible circuit board, and avoid damage to the flexible circuit board due to the large force generated during contact. At the same time, when the movable block 16 is squeezed, its bottom will be parallel to the top of the die-cutting board 3, and the roller 13 at this time is also parallel to the top of the die-cutting board 3, so as to better adhere the protective film to the top of the flexible circuit board.

[0034] A group of limit grooves 18 are provided in the connecting block 15, and a limit block 19 matching the size of the limit groove 18 is movably connected in the limit groove 18, and the limit block 19 is fixedly connected to the top of the movable block 16. The setting of the limit groove 18 and the limit block 19 is beneficial to increase its stability when the spring 17 is squeezed to drive the movable block 16 to move upward, so as to facilitate better movement, and the top of the limit block 19 is fixedly connected with a connecting plate 20, and the movable range of the limit block 19 can be connected through the connecting plate 20, so as to facilitate better use of the device.

[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A flexible circuit board protective film die-cutting part, comprising a connecting part (1), the bottom of the connecting part (1) is connected to a die-cutting plate (3) via a hydraulic cylinder (2), characterized in that: The die-cutting plate (3) is provided with a first cavity (4) on both sides, and a second cavity (5) is provided at one end of the die-cutting plate (3); a group of the first cavities (4) are rotatably connected with a screw rod (6), and the screw rod (6) respectively movably penetrates the two ends of the corresponding connecting rod (8); one end of a group of the screw rods (6) movably penetrates one side of the second cavity (5), and a driving structure is provided in the second cavity (5); and a roller (13) is rotatably connected to the outer surface of the connecting rod (8).

2. The flexible circuit board protective film die-cut piece according to claim 1, characterized in that: The driving structure comprises a worm (10) rotatably connected in the second cavity (5), one end of the worm (10) movably passes through one end of the second cavity (5) and extends to the outside where an output end of a motor (11) is connected, the motor (11) is fixedly connected to one side of the die-cutting plate (3) through a muffler box (12), the outer surface of the worm (10) is meshed with a group of worm wheels (9), and the worm wheels (9) are respectively arranged on the outer surfaces of corresponding lead screws (6).

3. The flexible circuit board protective film die-cut piece according to claim 1, characterized in that: Both ends of the die-cutting plate (3) are fixedly connected with connecting blocks (15), and the bottom of the connecting block (15) is connected with a movable block (16) via a spring (17).

4. The flexible circuit board protective film die-cut piece according to claim 3, characterized in that: The connection block (15) is provided with a group of limit grooves (18), and a limit block (19) having a size matching that of the limit groove (18) is movably connected in the limit groove (18), the limit block (19) is fixedly connected to the top of the movable block (16), and a connecting plate (20) is fixedly connected to the top of the limit block (19).

5. The flexible circuit board protective film die-cut piece according to claim 1, characterized in that: A slide groove (7) is provided on adjacent sides of a group of the first cavities (4), and a connecting rod (8) slides in the slide groove (7).

6. The flexible circuit board protective film die-cut piece according to claim 1, characterized in that: The outer surface of the roller (13) is provided with a rubber ring (14).

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