Air bag pressing structure and pressing machine
By designing an airbag pressing structure, the problems of uneven pressure and difficult demolding in vacuum pressing are solved, achieving uniform pressing and simplified maintenance, thereby improving circuit board production efficiency and equipment lifespan.
Patent Information
- Application Number
- CN202422887904.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing vacuum pressing technology suffers from uneven pressure and difficulty in demolding, and the circuit board pressing mechanism is difficult to maintain and consumes a lot of manpower and resources.
An airbag pressing structure was designed, including an airbag mounting plate, an airbag, a pressure frame, and an air guide groove. Pressing is achieved by uniformly distributing high-pressure gas. The cooperation between the airbag plate and the pressure frame ensures airtightness and stability, and the service life is extended by an annular protective strip and a sealing ring.
It achieves uniformity in pressing effect and stability of airbags, simplifies the maintenance process, and improves production efficiency and equipment lifespan.
Smart Images
Figure CN223639475U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a soft circuit board pressing mechanism, especially to an air bag pressing structure and a pressing machine containing the structure. BACKGROUND
[0002] Vacuum pressing is one of the key steps in manufacturing multilayer circuit boards, which ensures the electrical connectivity and mechanical strength between different layers. Through vacuum pressing, different layers of the circuit board can be tightly combined to form a stable multilayer structure, thereby meeting the needs of complex electronic devices. However, the current vacuum pressing is prone to uneven pressure and difficult demolding. Moreover, the pressing mechanism of the current circuit board pressing mechanism is difficult to maintain, requiring significant manpower and resources. SUMMARY
[0003] The utility model solves the technical problem of overcoming the deficiencies of the prior art and provides an air bag pressing structure and a pressing machine with good pressing effect, simple structure, and convenient maintenance.
[0004] The utility model adopts the technical scheme: the utility model discloses a gasbag mounting plate and the gasbag that sets up on the gasbag mounting plate, be equipped with a boss on the gasbag mounting plate, the gasbag pressing structure still includes the pressure frame, the gasbag is covered on the mesa of the boss, the pressure frame is fixedly pressed in the four around of the gasbag on the gasbag mounting plate, be equipped with the gas passage in the gasbag mounting plate, the gasbag mounting plate side is equipped with the gas inlet that communicates with the gas passage, be equipped with the gas outlet that communicates with the gas passage on the mesa of the boss.
[0005] Further, the mesa of the boss is a plane, and a plurality of longitudinal and transverse intersecting gas guide grooves are arranged on the mesa of the boss, and the gas guide grooves communicate with the gas outlet.
[0006] Further, the outer side surface of the gasbag located at the step of the boss is an inclined plane.
[0007] Further, the inner side of the pressure frame is provided with a pressing inclined surface matched with the inclined plane.
[0008] Further, the gasbag includes a top gasbag piece matched with the mesa of the boss, a side gasbag piece matched with the inclined plane, and a sealing gasbag piece matched with the edge of the gasbag mounting plate, and the top gasbag piece, the side gasbag piece, and the sealing gasbag piece are integrally arranged; the pressing inclined surface tightly presses the side gasbag piece on the inclined plane, and the bottom surface of the pressure frame tightly presses the sealing gasbag piece on the edge of the gasbag mounting plate.
[0009] Further, an annular protective strip is arranged at the edge of the top gasbag piece.
[0010] Further, the top of the annular protection strip is flush with the top of the pressing frame, and when the top air bag piece is inflated, the annular protection strip abuts against the inner side of the pressing frame.
[0011] Further, the bottom of the sealed air bag piece is provided with at least one sealing ring between the bottom surface of the pressing frame and the air bag mounting plate.
[0012] Further, the sealing ring is integrally arranged with the sealed air bag piece.
[0013] A pressing machine, comprising an upper pressing mechanism and a lower pressing mechanism, wherein the air bag pressing structure is arranged on the upper pressing mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a schematic diagram of the overall structure of the air bag pressing structure;
[0015] Figure 2 is a sectional view of the air bag pressing structure;
[0016] Figure 3 is Figure 2 is an enlarged schematic diagram of A in FIG. 4;
[0017] Figure 4 is an exploded view of the air bag pressing structure;
[0018] Figure 5 is an exploded view of the air bag pressing structure from another perspective;
[0019] Figure 6 is a schematic diagram of the structure of the pressing frame;
[0020] Figure 7 is a schematic diagram of the structure of the air bag;
[0021] Figure 8 is a sectional view of the air bag;
[0022] Figure 9 is a schematic diagram of the structure of the air bag mounting plate. DETAILED DESCRIPTION
[0023] EMBODIMENT
[0024] As Figures 1 to 9As shown in the embodiment, the utility model discloses air bag mounting plate 1 and the air bag 2 of setting on air bag mounting plate 1, be equipped with a boss 3 on air bag mounting plate 1, air bag pressing structure still includes pressing frame 4, air bag 2 covers on the mesa of boss 3, pressing frame 4 will the four around air bag 2 be pressed and fixed on air bag mounting plate 1, be equipped with gas passage in air bag mounting plate 1, air bag mounting plate 1 side is equipped with with gas passage intercommunication's air inlet 5, the mesa of boss 3 is equipped with with gas passage intercommunication's air outlet 6. When pressing, air inlet 5 connects outside air source, high pressure gas passes through gas passage and enters between air bag 2 and boss 3, then air bag 2 is under the action of high pressure gas and is pressed on FPC board and is inflated outward, because air bag 2 can be well attached to the surface of FPC board, and the pressing force is evenly released by the action of high pressure gas. In addition, through the design of pressing frame 4, the later maintenance replacement can be facilitated.
[0025] In the embodiment, the mesa of boss 3 is a plane, a plurality of longitudinal and transverse intersecting gas guide grooves 7 are arranged on the mesa of boss 3, and the gas guide grooves 7 are communicated with the air outlet 6. Through the design of the longitudinal and transverse intersecting gas guide grooves 7, high pressure gas can quickly enter into each corner on the mesa of boss 3, so that the air bag 2 can be quickly inflated, and the air bag 2 can be prevented from being bonded to the mesa of boss 3.
[0026] In the embodiment, the outer side surfaces of the air bag 2 located at the steps of the boss 3 are inclined planes 8. In the embodiment, the inner side of the pressing frame 4 is provided with a pressing inclined surface 9 matched with the inclined plane 8. In the embodiment, through the design of the inclined plane 8 and the pressing inclined surface 9, the pressing frame 4 can firmly press the corners of the air bag 2 on the corners of the boss 3, so that air leakage and falling can be effectively prevented.
[0027] In the embodiment, the air bag 2 includes a top air bag piece 10 matched with the mesa of the boss 3, a side air bag piece 11 matched with the inclined plane 8, and a sealing air bag piece 12 matched with the edge of the air bag mounting plate 1, and the top air bag piece 10, the side air bag piece 11 and the sealing air bag piece 12 are integrally arranged; the pressing inclined surface 9 tightly presses the side air bag piece 11 on the inclined plane 8, and the bottom surface of the pressing frame 4 tightly presses the sealing air bag piece 12 on the edge of the air bag mounting plate 1. In the embodiment, through the design of the top air bag piece 10, the side air bag piece 11 and the sealing air bag piece 12, the air tightness and stability of the air bag 2 can be well ensured.
[0028] In this embodiment, an annular protective strip 13 is arranged at the edge of the top airbag piece 10. In this embodiment, the top of the annular protective strip 13 is flush with the top of the pressing frame 4, and when the top airbag piece 10 is inflated, the annular protective strip 13 abuts against the inner side of the pressing frame 4. Through the design of the annular protective strip 13, the sealed airbag piece 12 can be prevented from contacting the edge of the pressing frame 4 after inflation, so as to avoid damage or fatigue of the sealed airbag piece 12, and the service life of the airbag 2 can be effectively prolonged.
[0029] In this embodiment, the bottom of the sealed airbag piece 12 is provided with two sealing rings 14, which are located between the bottom surface of the pressing frame 4 and the airbag mounting plate 1. In this embodiment, the sealing rings 14 are integrally arranged with the sealed airbag piece 12. Through the design of the sealed airbag piece 12 and the two sealing rings 14, the air tightness of the airbag 2 can be well guaranteed. Embodiment
[0030] In this embodiment, the pressing machine in this embodiment is used for pressing FPC, which includes the following parts:
[0031] 1. Hydraulic device: including motor, oil pump, hydraulic oil pipeline, oil cylinder and pressing device. These components work together to achieve the lamination of the circuit board through heating.
[0032] 2. Electric control device: used to control the operation of the pressing machine, usually using touch screen control and digital pressure control.
[0033] 3. Heating device: using electric heating tube to ensure uniform and stable board temperature, with an error within ±5 degrees.
[0034] 4. Pressure sensor: used to detect and control the pressure in the pressing process to ensure accurate and fine adjustment of the pressure setting.
[0035] 5. Heat insulation plate: usually made of glass fiber and high-temperature resistant resin, used for heat insulation and protection of equipment.
[0036] In this embodiment, the upper pressing mechanism and the lower pressing mechanism of the pressing device are provided with the airbag pressing structure.
[0037] The operation process of the FPC pressing machine usually includes the following steps: ① feeding, placing the materials to be pressed into the pressing machine; ② pressing, applying pressure through the hydraulic device, and heating the materials through the heating device to make them bond together; ③ discharging, taking out the finished product after pressing.
[0038] The FPC pressing machine has the following advantages:
[0039] High efficiency: short pressing time, usually only one to two minutes, greatly shortening the production cycle.
[0040] Energy saving: eliminates the heating and cooling process, saving a lot of energy.
[0041] Stable: the temperature of the heating disc is uniform and stable, and the plate surface temperature error is small, which ensures the pressing quality.
[0042] Multifunctional: multiple plates can be pressed at the same time, improving production efficiency.
[0043] Intelligent: PLC and man-machine automatic programming control are adopted, and the operation is simple and convenient.
[0044] Although the embodiments of the utility model are described in actual schemes, but does not constitute the limitation to the meaning of the utility model, for the person skilled in the art, according to the modification of the embodiments and the combination with other schemes in this specification, it is obvious.
Claims
1. An airbag press structure comprising an airbag mounting plate (1) and an airbag (2) provided on the airbag mounting plate (1), characterized by: The air bag mounting plate (1) is provided with a boss (3), the air bag pressing structure further comprises a pressing frame (4), the air bag (2) is attached to the top surface of the boss (3), the pressing frame (4) tightly presses and fixes the air bag (2) around on the air bag mounting plate (1), the air bag mounting plate (1) is provided with a gas passage, the air bag mounting plate (1) is provided with an air inlet (5) communicated with the gas passage, the top surface of the boss (3) is provided with an air outlet (6) communicated with the gas passage.
2. The airbag press structure according to claim 1, wherein: The top surface of the boss (3) is a plane, a plurality of longitudinal and transverse intersecting gas guide grooves (7) are arranged on the top surface of the boss (3), and the gas guide grooves (7) are communicated with the air outlet (6).
3. The airbag press structure according to claim 1, wherein: The outer side surface of the air bag (2) at the step of the boss (3) is an inclined plane (8).
4. The airbag press structure according to claim 3, wherein: The inner side of the pressing frame (4) is provided with a pressing inclined surface (9) matched with the inclined plane (8).
5. The airbag press structure according to claim 4, wherein: The air bag (2) comprises a top air bag piece (10) matched with the top surface of the boss (3), a side air bag piece (11) matched with the inclined plane (8), and a sealing air bag piece (12) matched with the edge of the air bag mounting plate (1), and the top air bag piece (10), the side air bag piece (11) and the sealing air bag piece (12) are integrally arranged; the pressing inclined surface (9) is tightly pressed on the inclined plane (8) of the side air bag piece (11), and the bottom surface of the pressing frame (4) tightly presses the sealing air bag piece (12) on the edge of the air bag mounting plate (1).
6. The airbag press structure according to claim 5, wherein: An annular protection strip (13) is arranged at the edge of the top air bag piece (10).
7. The airbag press structure according to claim 6, wherein: The top of the annular protection strip (13) is flush with the top of the pressing frame (4), and when the top air bag piece (10) is inflated, the annular protection strip (13) abuts against the inner side of the pressing frame (4).
8. The airbag press structure according to claim 6, wherein: The bottom of the sealing air bag piece (12) is provided with at least one sealing ring (14) between the bottom surface of the pressing frame (4) and the air bag mounting plate (1).
9. The airbag press structure according to claim 8, wherein: The sealing ring (14) is integrally arranged with the sealing air bag piece (12).
10. A press comprising an upper press structure and a lower press structure, characterized by: The air bag pressing structure as claimed in any one of claims 1 to 9 is arranged on the upper pressing mechanism.