Air bag pressing structure and pressing machine

Abstract

The invention discloses an air bag pressing structure and a pressing machine. The air bag pressing structure and the pressing machine are good in pressing effect, simple in structure and convenient to maintain. The air bag pressing structure comprises an air bag mounting plate and an air bag arranged on the air bag mounting plate, a boss is arranged on the air bag mounting plate, the air bag pressing structure further comprises a pressing frame, the air bag is attached to and covers the table top of the boss, and the pressing frame tightly presses and fixes the periphery of the air bag to the air bag mounting plate. An air channel is arranged in the air bag mounting plate, an air inlet communicated with the air channel is formed in the side face of the air bag mounting plate, and an air outlet communicated with the air channel is formed in the table top of the boss. The press-fit machine comprises an upper press-fit mechanism and a lower press-fit mechanism, and the air bag press-fit structure is arranged on the upper press-fit mechanism. The flexible circuit board pressing mechanism is applied to the technical field of flexible circuit board pressing mechanisms.

Description

Technical Field

[0001] The invention relates to a flexible circuit board pressing mechanism, and in particular to an airbag pressing structure and a pressing machine comprising the structure. Background Art

[0002] Vacuum 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 vacuum lamination, different layers of the circuit board can be tightly combined to form a stable multi-layer structure, thus meeting the needs of complex electronic devices. The current vacuum lamination is prone to uneven pressure and difficulty in demolding. At the same time, the current circuit board lamination mechanism is difficult to maintain and requires a lot of manpower and material resources. 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 an airbag pressing structure and a pressing machine with good pressing effect, simple structure and convenient maintenance.

[0004] The technical solution adopted by the present invention is: the present invention includes an airbag mounting plate and an airbag arranged on the airbag mounting plate, a boss is provided on the airbag mounting plate, and the airbag pressing structure also includes a pressing frame, the airbag is fitted and covered on the table top of the boss, and 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.

[0005] Furthermore, the surface of the boss is a plane, and a plurality of vertically and horizontally intersecting air guide grooves are provided on the surface of the boss, and the air guide grooves are connected with the air outlet.

[0006] Furthermore, the side surfaces of the bosses are all inclined planes.

[0007] Furthermore, a pressing inclined surface matched with the inclined plane is provided on the inner side of the pressing frame.

[0008] Furthermore, the airbag includes a top airbag sheet adapted to the table surface of the boss, a side airbag sheet adapted to the inclined plane, and a sealing airbag sheet adapted to the edge of the airbag mounting plate. The top airbag sheet, the side airbag sheet and the sealing airbag sheet are integrally arranged; the pressing slope presses the side airbag sheet against the inclined plane, and the bottom surface of the pressing frame presses the sealing airbag sheet against the edge of the airbag mounting plate.

[0009] Furthermore, an annular protective strip is provided at the edge of the top airbag sheet.

[0010] Furthermore, the top of the annular protective strip is flush with the top of the pressing frame, and when the top airbag sheet bulges, the annular protective strip abuts against the inner side of the pressing frame.

[0011] Furthermore, at least one sealing ring is provided at the bottom of the sealed airbag sheet, and the sealing ring is located between the bottom surface of the pressing frame and the airbag mounting plate.

[0012] Furthermore, the sealing ring is integrally arranged with the sealing airbag sheet.

[0013] A pressing machine comprises an upper pressing mechanism and a lower pressing mechanism, wherein the upper pressing mechanism is provided with the airbag pressing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the airbag pressing structure; Figure 2 is a cross-sectional view of the airbag press-fit structure; Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle; Figure 4 It is an exploded view of the airbag press-fit structure; Figure 5 This is an exploded view of the airbag press-fit structure from another perspective; Figure 6 It is a structural diagram of the press frame; Figure 7 It is a schematic diagram of the structure of the airbag; Figure 8 is a cross-sectional view of the airbag; Fig. 9 It is a structural schematic diagram of the airbag mounting plate. DETAILED DESCRIPTION

[0015] Embodiment 1 like Figures 1 to 9As shown, in this embodiment, the present invention includes an airbag mounting plate 1 and an airbag 2 arranged on the airbag mounting plate 1, a boss 3 is provided on the airbag mounting plate 1, and the airbag pressing structure also includes a pressing frame 4, the airbag 2 is fitted and covered on the surface of the boss 3, and 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 surface of the boss 3. During pressing, the air inlet 5 is connected to the external gas source, and the high-pressure gas enters between the airbag 2 and the boss 3 through the gas channel, and then the airbag 2 bulges outwards and presses on the FPC board under the action of the high-pressure gas. Since the airbag 2 can fit well on the surface of the FPC board, and the pressing force is evenly released by the action of the high-pressure gas. In addition, the design of the pressing frame 4 can facilitate later maintenance and replacement.

[0016] In this embodiment, the surface of the boss 3 is a plane, and a plurality of vertical and horizontal cross-shaped air guide grooves 7 are provided on the surface of the boss 3, and the air guide grooves 7 are connected to the gas outlet 6. Through the design of the vertical and horizontal cross-shaped air guide grooves 7, high-pressure gas can quickly enter every corner of the surface of the boss 3, ensuring that the airbag 2 can be quickly inflated, and preventing the airbag 2 from sticking to the surface of the boss 3.

[0017] In this embodiment, the side surfaces of the boss 3 are all inclined planes 8. In this embodiment, the inner side of the pressing frame 4 is provided with a pressing slope 9 adapted to the inclined plane 8. In this embodiment, through the design of the inclined plane 8 and the pressing slope 9, the pressing frame 4 can firmly press the corners of the airbag 2 against the corners of the boss 3, which can effectively prevent air leakage and falling off.

[0018] In this embodiment, the airbag 2 includes a top airbag sheet 10 adapted to the table surface of the boss 3, a side airbag sheet 11 adapted to the inclined plane 8, and a sealing airbag sheet 12 adapted to the edge of the airbag mounting plate 1. The top airbag sheet 10, the side airbag sheet 11 and the sealing airbag sheet 12 are integrally arranged; the pressing inclined surface 9 presses the side airbag sheet 11 against the inclined plane 8, and the bottom surface of the pressing frame 4 presses the sealing airbag sheet 12 against the edge of the airbag mounting plate 1. In this embodiment, the design of the top airbag sheet 10, the side airbag sheet 11 and the sealing airbag sheet 12 can well ensure the airtightness and stability of the airbag 2.

[0019] In this embodiment, an annular protective strip 13 is provided at the edge of the top airbag sheet 10. In this embodiment, the top of the annular protective strip 13 is flush with the top of the press frame 4. When the top airbag sheet 10 bulges, the annular protective strip 13 abuts against the inner side of the press frame 4. In this embodiment, the design of the annular protective strip 13 can prevent the sealing airbag sheet 12 from contacting the edge of the press frame 4 after swelling, avoid the sealing airbag sheet 12 from being damaged or fatigued, and effectively extend the service life of the airbag 2.

[0020] In this embodiment, two sealing rings 14 are provided at the bottom of the sealing airbag sheet 12, and the sealing rings 14 are located between the bottom surface of the pressing frame 4 and the airbag mounting plate 1. In this embodiment, the sealing ring 14 is integrally provided with the sealing airbag sheet 12. The design of the sealing airbag sheet 12 and the two sealing rings 14 can well ensure the airtightness of the airbag 2.

[0021] Embodiment 2 In this embodiment, the laminating machine in this embodiment is used for laminating FPC, and it includes the following parts: 1. Hydraulic device: including motor, oil pump, hydraulic oil pipeline, oil cylinder and pressing device. These components work together to achieve the increase of circuit board layers through heating.

[0022] 2. Electronic control device: used to control the operation of the pressing machine, usually using touch screen control and digital pressure control.

[0023] ‌3. Heating device‌: Electric heating tubes are used to ensure that the temperature of the board surface is uniform and stable, with an error within ±5 degrees‌.

[0024] ‌‌4. Pressure sensor‌: used to detect and control the pressure during the pressing process to ensure that the pressure setting is accurate and can be finely adjusted‌.

[0025] ‌5. Insulation board: usually made of glass fiber and high temperature resistant resin, used for insulation and protection of equipment. ; In this embodiment, the pressing device includes an upper pressing mechanism and a lower pressing mechanism, and the airbag pressing structure is arranged on the upper pressing mechanism.

[0026] The operation process of the FPC laminating machine usually includes the following steps: ① loading, putting the material to be laminated into the laminating machine; ② pressing, applying pressure through the hydraulic device, and at the same time the heating device heats the material to make it bond together; ③ unloading, after completing the laminating, take out the finished product.

[0027] FPC laminating machine has the following advantages: High efficiency: The pressing time is short, usually only one to two minutes, which greatly shortens the production cycle.

[0028] Energy saving: It eliminates the heating and cooling processes, saving a lot of energy.

[0029] Stable: The temperature of the heating plate is uniform and stable, and the temperature error of the board surface is small, which ensures the pressing quality.

[0030] Multifunctional: Multiple boards can be pressed at the same time, which improves production efficiency.

[0031] Intelligence: It adopts PLC and human-machine automatic programming control, which is simple and convenient to operate.

[0032] 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. An airbag pressing structure, comprising an airbag mounting plate (1) and an airbag (2) arranged on the airbag mounting plate (1), characterized in that: The airbag mounting plate (1) is provided with a boss (3), and the airbag pressing structure further comprises a pressing frame (4). The airbag (2) is fitted and covered on the surface of the boss (3), and the pressing frame (4) presses the four sides of the airbag (2) tightly and fixes them on the airbag mounting plate (1). A gas channel is provided in the airbag mounting plate (1), and an air inlet (5) connected to the gas channel is provided on the side of the airbag mounting plate (1). An air outlet (6) connected to the gas channel is provided on the surface of the boss (3).

2. The airbag pressing structure according to claim 1, characterized in that: The surface of the boss (3) is a plane, and a plurality of vertically and horizontally intersecting air guide grooves (7) are provided on the surface of the boss (3), and the air guide grooves (7) are connected to the air outlet (6).

3. The airbag pressing structure according to claim 1, characterized in that: The outer side surfaces of the airbag (2) located at the step of the boss (3) are all inclined planes (8).

4. The airbag pressing structure according to claim 3, characterized in that: The inner side of the pressing frame (4) is provided with a pressing inclined surface (9) which matches the inclined plane (8).

5. The airbag pressing structure according to claim 4, characterized in that: The airbag (2) comprises a top airbag sheet (10) adapted to the table surface of the boss (3), a side airbag sheet (11) adapted to the inclined plane (8), and a sealing airbag sheet (12) adapted to the edge of the airbag mounting plate (1), wherein the top airbag sheet (10), the side airbag sheet (11) and the sealing airbag sheet (12) are integrally arranged; the pressing inclined surface (9) is pressed against the inclined plane (8) of the side airbag sheet (11), and the bottom surface of the pressing frame (4) presses the sealing airbag sheet (12) against the edge of the airbag mounting plate (1).

6. The airbag pressing structure according to claim 5, characterized in that: An annular protective strip (13) is provided at the edge of the top airbag sheet (10).

7. The airbag pressing structure according to claim 6, characterized in that: The top of the annular protective strip (13) is flush with the top of the pressing frame (4); when the top airbag sheet (10) bulges, the annular protective strip (13) abuts against the inner side of the pressing frame (4).

8. The airbag pressing structure according to claim 6, characterized in that: At least one sealing ring (14) is provided at the bottom of the sealing airbag sheet (12), and the sealing ring (14) is located between the bottom surface of the pressing frame (4) and the airbag mounting plate (1).

9. The airbag pressing structure according to claim 8, characterized in that: The sealing ring (14) is integrally arranged with the sealing airbag sheet (12).

10. A pressing machine, comprising an upper pressing mechanism and a lower pressing mechanism, characterized in that: The upper pressing mechanism is provided with the airbag pressing structure as described in claims 1 to 9.

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