Pressing process based on novel air bag pressing structure

Abstract

The invention discloses a pressing process based on a novel air bag pressing structure and a pressing machine, and aims to provide the pressing process based on the novel air bag pressing structure, which is uniform in pressure and high in finished product quality. The method comprises the following steps: (1) feeding; (2) low-pressure air inflation: low-pressure air is inflated into an air inlet of the novel air bag pressing structure, so that the middle part of the air bag bulges downwards under the action of self weight and the low-pressure air; (3) exhausting: the upper pressing mechanism drives the novel air bag pressing structure to move downwards, the raised part in the middle of the air bag firstly makes contact with the middle position of the upper surface of the to-be-pressed FPC, then the upper pressing mechanism continues to move downwards, the air bag gradually covers and presses the to-be-pressed FPC from the middle position of the upper surface of the to-be-pressed FPC to the edge, and then the to-be-pressed FPC is pressed. Until the upper press-fit mechanism and the lower press-fit mechanism are completely closed; (4) pressing; and (5) blanking. The flexible circuit board pressing mechanism is applied to the technical field of flexible circuit board pressing mechanisms.

Description

Technical Field

[0001] The present invention relates to a flexible circuit board lamination process, and in particular to a lamination process based on a novel airbag lamination structure. Background Art

[0002] Lamination is one of the key steps in making multi-layer circuit boards, which ensures the circuit connectivity and mechanical strength between different layers. Through lamination of circuit boards, different layers can be tightly combined to form a stable multi-layer structure, thus meeting the needs of complex electronic devices. Current FPC lamination equipment is prone to uneven pressure, resulting in a large number of defective products in the lamination products. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pressing process based on a novel airbag pressing structure with uniform pressure and high finished product quality.

[0004] The technical solution adopted by the present invention is: the present invention is a laminating process based on a novel airbag laminating structure, the laminating process is applied to an FPC laminating machine, the FPC laminating machine comprises an upper laminating mechanism and a lower laminating mechanism, the upper laminating mechanism is provided with a novel airbag laminating structure, the novel airbag laminating structure comprises an airbag mounting plate and an airbag arranged on the airbag mounting plate, a boss is provided on the airbag mounting plate, the airbag laminating structure also comprises a pressing frame, the airbag is fitted and covered on the table top of the boss, the pressing frame presses the four sides of the airbag tightly and fixes it on the airbag mounting plate, a gas channel is provided in the airbag mounting plate, an air inlet connected to the gas channel is provided on the side of the airbag mounting plate, and an air outlet connected to the gas channel is provided on the table top of the boss, the laminating process based on the novel airbag laminating structure comprises the following steps: ① Loading: Place the FPC to be pressed onto the workbench of the lower pressing mechanism; ② Low-pressure inflation: low-pressure gas is filled into the air inlet of the novel airbag compression structure, so that the middle part of the airbag bulges downward under the action of its own weight and the low-pressure gas; ③ Exhaust: The upper pressing mechanism drives the novel airbag pressing structure to move downward, and the raised part in the middle of the airbag first contacts the middle position of the upper surface of the FPC to be pressed, and then the upper pressing mechanism continues to move downward, and the airbag gradually covers and presses the FPC to be pressed from the middle position of the upper surface of the FPC to be pressed to the edge, until the upper pressing mechanism and the lower pressing mechanism are completely closed; ④ Pressing: filling the air inlet of the novel airbag pressing structure with high pressure gas, and at the same time, the heating device on the novel airbag pressing structure heats the FPC to be pressed, so that they are bonded together; ⑤ Unloading: After the pressing is completed, the high-pressure gas between the airbag and the boss is released through the air inlet, the upper pressing mechanism and the lower pressing mechanism are separated, and the finished product is taken out.

[0005] Furthermore, in step ④, when the high-pressure gas is filled into the air inlet of the novel airbag compression structure, an inflation method of gradually increasing the pressure in time periods is adopted.

[0006] Furthermore, in step ⑤, when releasing the high-pressure gas between the airbag and the boss through the air inlet, a deflation method of gradually reducing the pressure in time periods is adopted. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a process flow chart of the present invention; Figure 2 It is a structural schematic diagram of a novel airbag pressing structure c; Figure 3 It is an exploded view of the new airbag pressing structure c. DETAILED DESCRIPTION

[0008] like Figures 1 to 3 As shown, in this embodiment, the present invention is a laminating process based on a novel airbag laminating structure, and the laminating process is applied to an FPC laminating machine, the FPC laminating machine comprises an upper laminating mechanism a and a lower laminating mechanism b, the upper laminating mechanism a is provided with a novel airbag laminating structure c, the novel airbag laminating structure c comprises an airbag mounting plate 1 and an airbag 2 arranged on the airbag mounting plate 1, the airbag mounting plate 1 is provided with a boss 3, the airbag laminating structure also comprises a pressing frame 4, the airbag 2 is fitted and covered on the table surface of the boss 3, the pressing frame 4 presses and fixes the four sides of the airbag 2 on the airbag mounting plate 1, a gas channel is provided in the airbag mounting plate 1, an air inlet 5 connected to the gas channel is provided on the side of the airbag mounting plate 1, and an air outlet 6 connected to the gas channel is provided on the table surface of the boss 3, the laminating process based on the novel airbag laminating structure comprises the following steps: ① Loading: Place the FPC to be pressed onto the workbench of the lower pressing mechanism b.

[0009] ② Low-pressure inflation: low-pressure gas is filled into the air inlet 5 of the novel airbag compression structure c, so that the middle part of the airbag 2 bulges downward under the action of its own weight and the low-pressure gas.

[0010] ③ Exhaust: The upper pressing mechanism b drives the new airbag pressing structure c to move downward, and the raised part in the middle of the airbag 2 first contacts the middle position of the FPC to be pressed, and then the upper pressing mechanism b continues to move downward, and the airbag 2 gradually covers and presses the FPC to be pressed from the middle position of the FPC to be pressed to the edge, until the upper pressing mechanism a and the lower pressing mechanism b are completely closed. The air is compressed. If it is not discharged in time, it will cause a large air pressure, causing the product to deform or rupture. Exhaust can alleviate the impact of air pressure on the product, ensure that the product maintains its original shape and size, and avoid deformation or rupture of the FPC, and exhaust can effectively prevent the formation of bubbles and pores. Air expands when heated. If it is not discharged in time, bubbles and pores will form inside the product, which will not only affect the overall strength of the FPC, but also reduce the appearance quality of the product. Exhaust can ensure that the air on the surface of the FPC is fully discharged, avoid the formation of bubbles and pores, and make the final product more uniform and strong. ‌ ④ Pressing: filling the air inlet 5 of the novel airbag pressing structure c with high pressure gas, and at the same time, the heating device on the novel airbag pressing structure c heats the FPC to be pressed to make them bond together.

[0011] ⑤ Unloading: After the pressing is completed, the high pressure gas between the airbag 2 and the boss 3 is released through the air inlet 5, the upper pressing mechanism a and the lower pressing mechanism b are separated, and the finished product is taken out. In this embodiment, in this step, when the high pressure gas between the airbag 2 and the boss 3 is released through the air inlet 5, a deflation method of gradually reducing the pressure in time periods is adopted.

[0012] In this embodiment, in step ④, when the high-pressure gas is charged into the air inlet 5 of the novel airbag pressing structure c, the charging method of gradually increasing the pressure in time periods is adopted. The benefits of FPC pressing gradually increasing the pressure mainly include the following aspects: 1. Reduce indentation and gradually increase pressure to ensure that there is appropriate space at the junction of the product and the reinforcement position during the lamination process, thereby reducing the risk of damage in production, significantly reducing the lamination marks on the FPC surface, and improving the overall performance and durability of the product.

[0013] 2. Improve product quality. Gradually increasing pressure can better control the pressure distribution during the pressing process, avoid quality problems caused by excessive or uneven pressure, and ensure the stability and reliability of FPC.

[0014] 3. Optimize production efficiency. By gradually increasing the pressure, rework and reprocessing caused by improper pressure can be reduced, saving time and resources and improving production efficiency.

[0015] 4. Extend the life of the equipment. Gradually increasing the pressure can reduce the burden of the equipment under high pressure, extend the service life of the equipment and reduce maintenance costs.

[0016] 5. Improve product performance. Gradually increasing the voltage helps ensure the pressing quality of FPC at each stage, thereby improving the overall performance and reliability of the product.

[0017] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A laminating process based on a novel airbag laminating structure, the laminating process is applied to an FPC laminating machine, the FPC laminating machine comprising an upper laminating mechanism (a) and a lower laminating mechanism (b), the upper laminating mechanism (a) being provided with a novel airbag laminating structure (c), the novel airbag laminating structure (c) comprising an airbag mounting plate (1) and an airbag (2) arranged on the airbag mounting plate (1), the airbag mounting plate (1) being provided with a boss (3), the airbag laminating structure further comprising a pressing frame (4), the airbag (2) being fitted and covered on the surface of the boss (3), the pressing frame (4) pressing and fixing the airbag (2) on the airbag mounting plate (1) around the four sides, the airbag mounting plate (1) being provided with a gas channel, the side of the airbag mounting plate (1) being provided with an air inlet (5) communicating with the gas channel, the surface of the boss (3) being provided with an air outlet (6) communicating with the gas channel, characterized in that: The lamination process based on the novel airbag lamination structure comprises the following steps: ① Loading: Place the FPC to be pressed onto the workbench of the lower pressing mechanism (b); ② Low-pressure inflation: low-pressure gas is injected into the air inlet (5) of the novel airbag compression structure (c), so that the middle part of the airbag (2) bulges downward under the action of its own weight and the low-pressure gas; ③ Exhaust: The upper pressing mechanism (b) drives the novel airbag pressing structure (c) to move downward, and the raised portion in the middle of the airbag (2) first contacts the middle position of the upper surface of the FPC to be pressed, and then the upper pressing mechanism (b) continues to move downward, and the airbag (2) gradually covers and presses the FPC to be pressed from the middle position of the upper surface of the FPC to be pressed toward the edge, until the upper pressing mechanism (a) and the lower pressing mechanism (b) are completely closed; ④ Pressing: filling the air inlet (5) of the novel airbag pressing structure (c) with high pressure gas, and at the same time, the heating device on the novel airbag pressing structure (c) heats the FPC to be pressed, so that they are bonded together; ⑤ Unloading: After the pressing is completed, the high-pressure gas between the airbag (2) and the boss (3) is released through the air inlet (5), the upper pressing mechanism (a) and the lower pressing mechanism (b) are separated, and the finished product is taken out.

2. The lamination process based on the novel airbag lamination structure according to claim 1 is characterized in that: In step ④, when the high-pressure gas is filled into the air inlet (5) of the novel airbag compression structure (c), a method of gradually increasing the pressure in time periods is adopted.

3. The lamination process based on the novel airbag lamination structure according to claim 1 is characterized in that: In step ⑤, when releasing the high-pressure gas between the airbag (2) and the boss (3) through the air inlet (5), a deflation method of gradually reducing the pressure in time periods is adopted.

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