A high-toughness flexible circuit board coating structure

Abstract

This utility model discloses a high-toughness flexible circuit board coating structure, including a frame. Along the flexible circuit board conveying direction, a positioning mechanism, a coating mechanism, a feeding mechanism, and a cutting mechanism are sequentially arranged on the frame. The positioning mechanism includes an adsorption platform and an adjustable positioning component. The adsorption platform has several adsorption holes on its surface, which are connected to a negative pressure device. The adjustable positioning component includes a positioning block along the length of the adsorption platform and a limiting block along the width. The synergistic effect of the negative pressure adsorption of the adsorption platform and the adjustable positioning component allows for rapid adjustment of the positioning position according to flexible circuit boards of different sizes, effectively reducing the offset of the flexible circuit board during processing and improving positioning accuracy. A heating component enables precise control of the coating temperature. Combined with an adjustable pressure roller assembly and a tension-stable feeding mechanism, this effectively reduces the generation of bubbles and wrinkles during the coating process, significantly improving coating quality.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a high-toughness flexible circuit board coating structure. Background Technology

[0002] Flexible circuit boards (PCBs) are widely used in electronic devices due to their advantages such as light weight, thinness, and flexibility. Lamination is a key process in PCB manufacturing; its purpose is to cover the surface of the PCB with a protective film to improve its insulation, corrosion resistance, and abrasion resistance.

[0003] Existing flexible circuit board coating devices have many shortcomings during use: low positioning accuracy, flexible circuit boards are prone to displacement during transportation and coating, resulting in inaccurate coating position; air bubbles and wrinkles are easily generated during coating, affecting coating quality; poor adaptability, making it difficult to meet the coating requirements of flexible circuit boards of different sizes, requiring the replacement of special positioning components, which is cumbersome and costly. To address these issues, we propose a high-toughness flexible circuit board coating structure. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this utility model provides a high-toughness flexible circuit board coating structure. Through the synergistic effect of negative pressure adsorption of the adsorption platform and adjustable positioning components, the positioning position can be quickly adjusted according to flexible circuit boards of different sizes, effectively reducing the offset of the flexible circuit board during processing and improving positioning accuracy. The heating component enables precise control of the coating temperature. Combined with the adjustable pressure roller assembly and the tension-stable feeding mechanism, the generation of bubbles and wrinkles during the coating process is effectively reduced, significantly improving the coating quality.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a high-toughness flexible circuit board coating structure, including a frame, on which a positioning mechanism, a coating mechanism, a feeding mechanism, and a cutting mechanism are sequentially arranged along the flexible circuit board conveying direction. The positioning mechanism includes an adsorption platform and an adjustable positioning component. The adsorption platform has a plurality of adsorption holes on its surface, and the adsorption holes are connected to a negative pressure device. The adjustable positioning component includes a positioning block arranged along the length direction of the adsorption platform and a limiting block arranged along the width direction. Both the positioning block and the limiting block are connected to the platform via a sliding block structure. The frame is slidably connected, and a positioning drive component is provided on the inner side of the frame. The positioning drive component includes a lead screw passing through a positioning block and a drive motor. The positioning block is sleeved on the surface of the lead screw. One end of the lead screw is connected to the drive shaft of the drive motor. The film coating mechanism includes a pressure roller assembly, a heating assembly, and a lifting frame. The pressure roller assembly includes an upper pressure roller and a lower pressure roller. Both ends of the lower pressure roller are connected to the frame through spring support seats. A lifting cylinder is installed at the top of the lower pressure roller. The lifting cylinder is installed on one side surface of the lifting frame. The heating assembly includes an electric heating tube embedded inside the lower pressure roller and a temperature sensor.

[0006] As a preferred embodiment of this utility model, the feeding mechanism includes a film-coating roll and a tension adjusting roller rotatably connected to the frame, wherein the tension adjusting roller is connected to the frame via an elastic bracket.

[0007] As a preferred technical solution of this utility model, the cutting mechanism includes a driving cylinder and a cutting blade. The cutting blade is disposed on one side of the output end of the coating mechanism. The cutting mechanism is fixed to the top of the frame. One end of the piston rod of the driving cylinder is fixedly connected to the cutting blade.

[0008] As a preferred technical solution of this utility model, a control system is provided on one side of the bottom end of the frame, and the drive motor of the positioning drive component, the lifting cylinder, the electric heating tube of the heating component, the temperature sensor and the drive cylinder are all electrically connected to the control system.

[0009] As a preferred embodiment of this utility model, a cutting table is provided below the cutting blade.

[0010] As a preferred embodiment of this utility model, the control system includes a display screen, setting buttons, and a programmable controller.

[0011] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. Through the synergistic effect of the negative pressure adsorption of the adsorption platform and the adjustable positioning component, the positioning position can be quickly adjusted according to the flexible circuit board of different sizes, effectively reducing the offset of the flexible circuit board during processing and improving the positioning accuracy. The heating component is set to achieve precise control of the film coating temperature. Combined with the adjustable pressure roller component and the tension-stable feeding mechanism, the generation of bubbles and wrinkles during the film coating process is effectively reduced, and the film coating quality is significantly improved.

[0012] 2. The positioning mechanism and the liftable pressure roller assembly can adapt to the processing needs of flexible circuit boards and coating materials of different sizes and thicknesses, without the need for frequent replacement of parts, reducing operating costs and improving processing efficiency; the control system realizes the coordinated control of each mechanism, with a high degree of automation, reducing the intensity of manual operation and improving processing stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a top view of the adjustable positioning component of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the pressure roller assembly and heating assembly of this utility model.

[0016] The components include: 1. Frame; 2. Positioning mechanism; 21. Adsorption platform; 22. Adjustable positioning component; 23. Adsorption hole; 24. Positioning block; 25. Limiting block; 3. Coating mechanism; 31. Upper pressure roller; 32. Lower pressure roller; 33. Lifting frame; 34. Lifting cylinder; 35. Heating component; 36. Temperature sensor; 37. Spring support seat; 4. Feeding mechanism; 41. Coating roll; 42. Tension adjusting roller; 5. Cutting mechanism; 51. Drive cylinder; 52. Cutting knife; 6. Control system. Detailed Implementation

[0017] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.

[0018] For an example, please refer to... Figure 1 , Figure 2 , Figure 3As shown, this utility model provides a high-toughness flexible circuit board coating structure, including a frame 1. A positioning mechanism 2, a coating mechanism 3, a feeding mechanism 4, and a cutting mechanism 5 are sequentially arranged on the frame 1 along the flexible circuit board conveying direction. The positioning mechanism 2 includes an adsorption platform 21 and an adjustable positioning component 22. The adsorption platform 21 has several adsorption holes 23 on its surface, which are connected to a negative pressure device. The adjustable positioning component 22 includes a positioning block 24 arranged along the length of the adsorption platform 21 and a limiting block 25 arranged along the width. Both the positioning block 24 and the limiting block 25 are slidably connected to the frame 1 via a sliding block structure. A positioning drive component is provided inside the frame 1, including a lead screw passing through the positioning block 24 and a drive motor. The positioning block 24 is sleeved on the surface of the lead screw, and one end of the lead screw is connected to the drive shaft of the drive motor. The coating mechanism 3 includes a pressure roller assembly, a heating assembly 35, and a lifting frame 33. The pressure roller assembly includes an upper pressure roller 31 and a lower pressure roller. 32. The two ends of the lower pressure roller 32 are connected to the frame 1 through spring support seats 37. A lifting cylinder 34 is installed at the top of the lower pressure roller 32. The lifting cylinder 34 is installed on one side surface of the lifting frame 33. The heating component 35 includes an electric heating tube embedded in the lower pressure roller 32 and a temperature sensor 36. Through the negative pressure adsorption of the adsorption platform 21 and the synergistic effect of the adjustable positioning component 22, the positioning position can be quickly adjusted according to the flexible circuit board of different sizes, effectively reducing the offset of the flexible circuit board during processing and improving the positioning accuracy. The heating component 35 is set to achieve precise control of the film coating temperature. With the adjustable pressure roller component and the tension-stable feeding mechanism 4, the generation of bubbles and wrinkles during the film coating process is effectively reduced, significantly improving the film coating quality. The positioning mechanism 2 and the lifting roller component can adapt to the processing needs of flexible circuit boards and film coating materials of different sizes and thicknesses, without the need for frequent replacement of parts, reducing operating costs and improving processing efficiency.

[0019] like Figure 1 As shown, the feeding mechanism 4 includes a film-coating roll 41 rotatably connected to the frame 1 and a tension adjusting roller 42, which is connected to the frame 1 via an elastic bracket.

[0020] like Figure 1 As shown, the cutting mechanism 5 includes a drive cylinder 51 and a cutting blade 52. The cutting blade 52 is located on one side of the output end of the film coating mechanism 3. The cutting mechanism 5 is fixed to the top of the frame 1. One end of the piston rod of the drive cylinder 51 is fixedly connected to the cutting blade 52.

[0021] like Figure 3 As shown, a control system 6 is installed on one side of the bottom of the frame 1. The drive motor of the positioning drive component, the lifting cylinder 34, the electric heating tube of the heating component 35, the temperature sensor 36 and the drive cylinder 51 are all electrically connected to the control system 6.

[0022] like Figure 1As shown, a cutting table is provided below the cutting blade 52.

[0023] like Figure 1 As shown, the control system 6 includes a display screen, setting buttons, and a programmable controller; the control system 6 enables coordinated control of various mechanisms, achieving a high degree of automation, reducing the intensity of manual operation, and improving processing stability.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-toughness flexible circuit board coating structure, comprising a frame (1), characterized in that: The frame (1) is provided with a positioning mechanism (2), a film coating mechanism (3), a feeding mechanism (4), and a cutting mechanism (5) in sequence along the flexible circuit board conveying direction. The positioning mechanism (2) includes an adsorption platform (21) and an adjustable positioning component (22). The adsorption platform (21) has several adsorption holes (23) on its surface. The adsorption holes (23) are connected to a negative pressure device. The adjustable positioning component (22) includes a positioning block (24) arranged along the length of the adsorption platform (21) and a limiting block (25) arranged along the width. The positioning block (24) and the limiting block (25) are slidably connected to the frame (1) through a sliding block structure. The frame (1) is provided with a positioning drive component inside. The positioning drive component includes a lead screw passing through the positioning block (24) and a drive motor. The positioning block (24) is sleeved on the surface of the lead screw. One end of the lead screw is connected to the drive shaft of the drive motor. The film coating mechanism (3) includes a pressure roller assembly, a heating assembly (35) and a lifting frame (33). The pressure roller assembly includes an upper pressure roller (31) and a lower pressure roller (32). The two ends of the lower pressure roller (32) are connected to the frame (1) through spring support seats (37). A lifting cylinder (34) is installed at the top of the lower pressure roller (32). The lifting cylinder (34) is installed on one side surface of the lifting frame (33). The heating assembly (35) includes an electric heating tube embedded inside the lower pressure roller (32) and a temperature sensor (36).

2. The high-toughness flexible circuit board coating structure according to claim 1, characterized in that: The feeding mechanism (4) includes a film-coating roll (41) and a tension adjusting roller (42) rotatably connected to the frame (1). The tension adjusting roller (42) is connected to the frame (1) via an elastic bracket.

3. The high-toughness flexible circuit board coating structure according to claim 1, characterized in that: The cutting mechanism (5) includes a drive cylinder (51) and a cutting blade (52). The cutting blade (52) is located on one side of the output end of the film coating mechanism (3). The cutting mechanism (5) is fixed to the top of the frame (1). One end of the piston rod of the drive cylinder (51) is fixedly connected to the cutting blade (52).

4. The high-toughness flexible circuit board coating structure according to claim 1, characterized in that: The frame (1) is equipped with a control system (6) on one side of the bottom end. The drive motor of the positioning drive component, the lifting cylinder (34), the electric heating tube of the heating component (35), the temperature sensor (36) and the drive cylinder (51) are all electrically connected to the control system (6).

5. The high-toughness flexible circuit board coating structure according to claim 3, characterized in that: A cutting table is provided below the cutting blade (52).

6. The high-toughness flexible circuit board coating structure according to claim 4, characterized in that: The control system (6) includes a display screen, setting buttons, and a programmable controller.

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