Membrane switch surface paste processing equipment

Abstract

The invention belongs to the technical field of membrane switch processing and discloses membrane switch surface paste processing equipment which comprises a bottom plate, a supporting frame is fixedly mounted at the top end of the bottom plate, a pressing and pasting mechanism is arranged at the top end of the supporting frame, and an exhaust mechanism is arranged at the top end, close to the pressing and pasting mechanism, of the bottom plate and comprises an air pump fixedly mounted at the top end of the bottom plate. The output end of the air pump is communicated with an air outlet pipe, the output end of the pressing and pasting mechanism and the top end of the bottom plate are each provided with an air collecting pipe with a concentrated airflow, one side of each air collecting pipe is provided with a main hose, and the air outlet pipe is communicated with the air collecting pipes through first connecting pipes; according to the pressing and pasting mechanism, the pressing and connecting air bag is adopted to pressurize the face paste, compared with a traditional rigid pressing and pasting mode, the pressing and connecting air bag can play a buffering role in the pasting process, damage to the face paste material is effectively reduced, the integrity and functionality of the membrane switch face paste are guaranteed, and the product yield is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane switch processing, and in particular to a membrane switch surface pasting processing device. Background Art

[0002] Membrane switches are common electronic components used in a wide range of electronic products. The quality of their surface coating directly impacts their performance and service life. During the membrane switch surface coating process, ensuring a tight fit between the various film layers and removing any air or bubbles that may be trapped inside are key steps in ensuring product quality.

[0003] Traditional membrane switch surface processing equipment typically uses wiping and other methods for cleaning before lamination. This method is not only inefficient but also prone to secondary contamination, making it difficult to completely remove micron-sized particles, dust, fibers, and other impurities. Furthermore, traditional methods often rely on allowing the tiny bubbles and residual gases generated during the lamination process to evaporate naturally, which is inefficient and unable to effectively and promptly remove these gases. These residual bubbles and gases not only affect the appearance of the membrane switch but also prevent the adhesive from evenly soaking into the substrate, thereby reducing bond strength and shortening the device's lifespan. Summary of the Invention

[0004] The purpose of the present invention is to provide a membrane switch surface processing equipment to solve the problem of tiny bubbles and residual gas generated during the bonding process mentioned in the above background technology. Traditional methods mostly rely on standing or natural volatilization, which is inefficient and cannot effectively remove these gases in a timely manner. These residual bubbles and gas not only affect the appearance quality of the membrane switch.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a membrane switch surface processing equipment, comprising a base plate, a support frame fixedly installed on the top of the base plate, a pressing mechanism provided on the top of the support frame, an exhaust mechanism provided on the top of the base plate near the pressing mechanism, the exhaust mechanism comprising an air pump fixedly installed on the top of the base plate, the output end of the air pump is connected to an air outlet pipe, the output end of the pressing mechanism and the top of the base plate are both installed with an air collecting pipe with concentrated airflow, a main hose is installed on one side of the air collecting pipe, the air outlet pipe and the air collecting pipe are connected by a first connecting pipe, an exhaust assembly is provided inside the main hose, the exhaust assembly comprises a secondary hose installed inside the main hose for sucking in air and discharging bubbles, the input end of the air pump is connected to an air inlet pipe, and the air inlet pipe and the air collecting pipe are connected by a second connecting pipe.

[0006] As a preferred technical solution of the present invention, the upper circuit sheet and the lower circuit sheet of the switch surface are provided at the top of the base plate, and an intermediate diaphragm is provided between the upper circuit sheet and the lower circuit sheet, and the two main hoses are respectively located on both sides of the upper circuit sheet and the lower circuit sheet.

[0007] As a preferred technical solution of the present invention, the main hose is connected to the surface of the gap between the upper circuit sheet and the middle diaphragm and is installed with multiple blowing pipes, and the secondary hose is connected to the surface of the gap between the upper circuit sheet and the middle diaphragm and is installed with an air suction pipe, and the free end of the air suction pipe is installed with multiple sealing rings for sealing the gap.

[0008] As a preferred technical solution of the present invention, the pressing mechanism includes a hydraulic cylinder fixedly installed on the top of the support frame, a pressure plate fixedly installed on the output end of the hydraulic cylinder, a telescopic part fixedly installed on the bottom end of the pressure plate, and a crimping airbag for exhausting the surface-to-surface processing fixedly installed on the output shaft of the telescopic part, and the telescopic air cavity of the telescopic part is connected to the output end of the air pump through a pressurized tube.

[0009] As a preferred technical solution of the present invention, the interior of the intake pipe is filled with an adsorption component, and the adsorption component includes multiple groups of activated carbon. The inner wall of the intake pipe close to the upper circuit sheet and the middle diaphragm gap is installed with a breathable film.

[0010] As a preferred technical solution of the present invention, a fixing plate for stabilizing the gas collecting pipe is fixedly installed on the side wall and the top end of the bottom plate of the pressure plate, and the fixing plate is fixedly connected to the gas collecting pipe.

[0011] As a preferred technical solution of the present invention, a support mechanism is provided at the top of the base plate, and the support mechanism includes a driving member fixedly installed at the top of the base plate, and the output shaft of the driving member is fixedly installed with a support plate, and the support plate is located at the bottom end of the lower circuit sheet.

[0012] As a preferred technical solution of the present invention, a honeycomb reinforcement rib is fixedly installed on the bottom end of the bottom plate, and a top plate of the stabilizing support plate is fixedly installed between the output shaft of the driving member and the reinforcement rib.

[0013] As a preferred technical solution of the present invention, a limiting mechanism is provided on both sides of the support frame, and the limiting mechanism includes an electric push rod fixedly installed on the inner wall of the support frame, and a clamping plate is fixedly installed on the output end of the electric push rod, and the clamping plate is fixedly installed near the bottom end of the two fixed plates to limit plates for positioning the main hose.

[0014] As a preferred technical solution of the present invention, a protective plate is fixedly installed on the top of the base plate, and a positioning rod is fixedly installed in the middle of the protective plate. The positioning rod slides through the support plate, the lower circuit sheet, the middle diaphragm, and the upper circuit sheet in sequence.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The pressing mechanism of the present invention adopts a pressing airbag to pressurize the surface sticker. Compared with the traditional rigid pressing method, the pressing airbag can play a buffering role during the bonding process, effectively reducing the damage to the surface sticker material, ensuring the integrity and functionality of the membrane switch surface sticker, and improving the product yield.

[0016] Before laminating the surface, the present invention generates high-pressure airflow through an air pump, which directly impacts the laminating surfaces of the upper circuit sheet, the lower circuit sheet and the middle film through a main hose and an air blowing pipe, and can efficiently peel off and blow away micron-sized particles, dust, fibers and other impurities. This cleaning method avoids the secondary contamination that may remain by traditional wiping, and provides a good foundation for high-quality surface lamination.

[0017] The present invention uses a secondary hose and an air suction pipe to quickly extract tiny bubbles and residual gas generated in the bonding area during the surface bonding process. By eliminating these bubbles and gas, the adhesive can more evenly infiltrate the glued object, thereby improving the bonding strength, extending the service life of the membrane switch device, and ensuring the stability and reliability of the product during long-term use.

[0018] The present invention uses an air pump to inflate the crimping airbag, which can accurately control the pressure during surface bonding. This pressure control method is more accurate than traditional mechanical pressure control. The pressure can be flexibly adjusted according to different film materials and process requirements, ensuring a stable and reliable surface bonding process and improving the quality and consistency of the surface bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the crimped airbag of the present invention; Figure 4 This is a schematic structural diagram of the main hose of the present invention; Figure 5 It is a schematic diagram of the explosion structure in the exhaust mechanism of the present invention; Figure 6 Schematic diagram of the middle diaphragm structure of the present invention; Figure 7 This is a schematic diagram of the secondary hose structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at A in FIG; Figure 9 It is a schematic diagram of the support plate structure of the present invention.

[0020] In the figure: 1. Base plate; 2. Support frame; 3. Pressing mechanism; 31. Hydraulic cylinder; 32. Pressurizing pipe; 33. Pressing plate; 34. Telescopic member; 35. Pressed airbag; 4. Exhaust mechanism; 41. Air pump; 42. Main hose; 43. Fixing plate; 44. Gas collecting pipe; 45. Exhaust pipe; 46. First connecting pipe; 47. Inlet pipe; 48. Exhaust assembly; 481. Second connecting pipe; 482. Secondary hose; 483. Intake pipe; 484. Adsorption component; 485. Breathable film; 486. Sealing ring; 49. Blowing pipe; 5. Limiting mechanism; 51. Card; 52. Electric push rod; 6. Support mechanism; 61. Support plate; 62. Reinforcement rib; 63. Top plate; 64. Driving member; 7. Upper circuit chip; 8. Middle diaphragm; 9. Lower circuit chip; 10. Positioning rod; 11. Protective plate. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-9 The present invention provides a membrane switch surface pasting processing equipment, including a base plate 1, a support frame 2 is fixedly installed on the top of the base plate 1, a pressing mechanism 3 is provided on the top of the support frame 2, an exhaust mechanism 4 is provided on the top of the base plate 1 near the pressing mechanism 3, the exhaust mechanism 4 includes an air pump 41 fixedly installed on the top of the base plate 1, the output end of the air pump 41 is connected and installed with an air outlet pipe 45, the output end of the pressing mechanism 3 and the top of the base plate 1 are both installed with an air collecting pipe 44 with concentrated airflow, a main hose 42 is installed on one side of the air collecting pipe 44, the air outlet pipe 45 is connected to the air collecting pipe 44 through a first connecting pipe 46, an exhaust assembly 48 is provided inside the main hose 42, the exhaust mechanism 4 includes a secondary hose 482 installed inside the main hose 42 for sucking in air and discharging bubbles, the input end of the air pump 41 is connected and installed with an air inlet pipe 47, and the air inlet pipe 47 and the air collecting pipe 44 are connected through a second connecting pipe 481.

[0023] Among them, in the exhaust mechanism 4, the output end of the air pump 41 is connected to the air outlet pipe 45, and the output end of the hydraulic cylinder 31 and the top of the base plate 1 are installed with an air collecting pipe 44. One side of the air collecting pipe 44 is connected to the main hose 42. The inside of the main hose 42 is inflated by the air pump 41. The main hose 42 can not only press and limit the surface film, but also blow air. The secondary hose 482 inside the main hose 42 is used to absorb air and expel bubbles. The exhaust mechanism 4 works in coordination with the pressing mechanism 3, and the air pump 41 is used to realize the circulation of gas in the system, which provides a basis for subsequent blowing cleaning and suction and exhaust operations, and helps to improve the efficiency and quality of membrane switch surface processing.

[0024] In some embodiments, the top of the base plate 1 is provided with an upper circuit sheet 7 and a lower circuit sheet 9 of the switch surface, and an intermediate diaphragm 8 is provided between the upper circuit sheet 7 and the lower circuit sheet 9, and two main hoses 42 are respectively located on both sides of the upper circuit sheet 7 and the lower circuit sheet 9.

[0025] Among them, the main hose 42 is distributed on both sides of the circuit sheet, which can effectively process the edges of the upper circuit sheet 7, the lower circuit sheet 9 and the middle diaphragm 8 during the surface pasting process, facilitate subsequent blowing and suction operations, ensure the cleaning and exhaust effect of the entire surface pasting area, and improve the surface pasting quality.

[0026] In some embodiments, the main hose 42 is connected to the surface of the gap between the upper circuit sheet 7 and the middle diaphragm 8 and is installed with multiple blowing tubes 49, the secondary hose 482 is connected to the surface of the gap between the upper circuit sheet 7 and the middle diaphragm 8 and is installed with an air suction tube 483, and the free end of the air suction tube 483 is installed with multiple sealing rings 486 for sealing the gap.

[0027] Among them, the blowing pipe 49 can blow air to clean the gap between the upper circuit chip 7 and the middle diaphragm 8, the suction pipe 483 is used to suck air to expel bubbles, and the sealing ring 486 can enhance the sealing between the suction pipe 483 and the gap, improve the suction and exhaust efficiency, effectively reduce the air and bubble residue during the surface pasting process, and ensure the stability of the surface pasting.

[0028] In some embodiments, the pressing mechanism 3 includes a hydraulic cylinder 31 fixedly mounted on the top of the support frame 2, a pressure plate 33 is fixedly mounted on the output end of the hydraulic cylinder 31, a telescopic part 34 is fixedly mounted on the bottom end of the pressure plate 33, and a crimping airbag 35 for exhausting the surface-to-surface processing is fixedly mounted on the output shaft of the telescopic part 34, and the telescopic air cavity of the telescopic part 34 is connected to the output end of the air pump 41 through the pressurized tube 32.

[0029] Among them, the hydraulic cylinder 31 drives the pressure plate 33 to drive the crimping airbag 35 to perform the surface pasting operation. The crimping airbag 35 can reduce the damage to the surface pasting material. At the same time, the air pump 41 can indirectly inflate the telescopic part 34 through the pressurized tube 32, and the telescopic part 34 can not only drive the crimping airbag 35 to move, but also inflate the crimping airbag 35, accurately control the surface pasting pressure, increase the stability of the surface pasting, and improve the quality of the surface pasting.

[0030] In some embodiments, the interior of the air intake pipe 483 is filled with an adsorption component 484, and the adsorption component 484 includes multiple groups of activated carbon. A breathable film 485 is installed on the inner wall of the air intake pipe 483 near the gap between the upper circuit sheet 7 and the middle diaphragm 8.

[0031] Among them, the activated carbon adsorption component 484 can absorb harmful gases or odors that may be generated during the noodle lamination process, and the breathable film 485 can not only ensure the passage of gas, but also prevent the activated carbon from entering the gaps, further optimizing the environment during the noodle lamination process and improving product quality.

[0032] In some embodiments, a fixing plate 43 for stabilizing the gas collecting pipe 44 is fixedly installed on the side wall of the pressure plate 33 and the top of the bottom plate 1 , and the fixing plate 43 is fixedly connected to the gas collecting pipe 44 .

[0033] Among them, the fixing plate 43 plays a stabilizing role on the gas collecting pipe 44, ensuring that the gas collecting pipe 44 remains stable during operation, ensuring smooth gas delivery, and avoiding the shaking of the gas collecting pipe 44 affecting the blowing and suction effects, thereby improving the stability and reliability of the surface lamination processing.

[0034] In some embodiments, a support mechanism 6 is provided at the top of the base plate 1 , and the support mechanism 6 includes a driving member 64 fixedly mounted on the top of the base plate 1 , and an output shaft of the driving member 64 is fixedly mounted with a support plate 61 , which is located at the bottom end of the lower circuit sheet 9 .

[0035] Among them, the support mechanism 6 provides stable support for the lower circuit chip 9. During the surface pasting process, the driving member 64 can adjust the position of the support plate 61 to adapt to different processing requirements, ensure the flatness and stability of the lower circuit chip 9 during surface pasting, and improve the surface pasting quality.

[0036] In some embodiments, a honeycomb-shaped reinforcement rib 62 is fixedly mounted on the bottom end of the bottom plate 1 , and a top plate 63 for stabilizing the support plate 61 is fixedly mounted between the output shaft of the driving member 64 and the reinforcement rib 62 .

[0037] Among them, the honeycomb reinforcement ribs 62 enhance the structural strength of the bottom plate 1, and cooperate with the top plate 63 to further stabilize the support plate 61, reduce the vibration and deformation of the equipment during operation, improve the stability and durability of the entire equipment, and ensure the accuracy and quality of surface processing.

[0038] In some embodiments, a limiting mechanism 5 is provided on both sides of the support frame 2, and the limiting mechanism 5 includes an electric push rod 52 fixedly installed on the inner wall of the support frame 2, and a clamping plate 51 is fixedly installed on the output end of the electric push rod 52. The clamping plate 51 is fixedly installed near the bottom end of the two fixed plates 43 with a limiting plate for positioning the main hose 42.

[0039] Among them, the electric push rod 52 drives the clamping plate 51 and the limit plate to position the main hose 42, ensuring that the main hose 42 maintains the correct position during operation, avoiding the main hose 42 from shaking or shifting, ensuring the accuracy of the blowing and suction operations, and improving the efficiency and stability of the surface pasting processing.

[0040] In some embodiments, a protective plate 11 is fixedly installed on the top of the base plate 1, and a positioning rod 10 is fixedly installed in the middle of the protective plate 11. The positioning rod 10 slides through the support plate 61, the lower circuit sheet 9, the middle diaphragm 8, and the upper circuit sheet 7 in sequence.

[0041] Among them, the protection plate 11 plays a protective role for the equipment, and the positioning rod 10 plays a positioning role during the surface pasting process, ensuring that the support plate 61, the lower circuit chip 9, the middle diaphragm 8 and the upper circuit chip 7 maintain the correct position relationship in the vertical direction, preventing the components from shifting during the surface pasting process, and ensuring the accuracy and quality of the surface pasting.

[0042] The working principle is as follows: when the membrane switch is subjected to surface pasting processing, the positioning rod 10 is used to position and install the lower circuit chip 9, the middle diaphragm 8, and the upper circuit chip 7 in turn. At this time, a main hose 42 is provided at the top and bottom ends of the middle diaphragm 8. The air outlet pipe 45 is inflated by the air pump 41 and then introduced into the interior of the main hose 42 through the first connecting pipe 46. At this time, the main hose 42 not only presses and limits the surface film, but also blows air. The air blowing can efficiently peel off and blow away impurities such as micron-sized particles, dust and fibers. This cleaning method avoids the secondary pollution left by traditional wiping. While the air pump 41 discharges air, it inhales air through the air inlet pipe 47. At this time, the secondary hose 482 inside the main hose 42 is used to inhale and expel bubbles, effectively reducing the air and bubble residues during the surface pasting process and ensuring the stability of the surface pasting. The exhaust mechanism 4 works in conjunction with the pressing mechanism 3 to realize the circulation of gas in the system, providing a basis for subsequent blowing cleaning and suction and exhaust operations, which helps to improve the efficiency and quality of membrane switch surface pasting processing.

[0043] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A membrane switch surface processing device, comprising a bottom plate (1), characterized in that: A support frame (2) is fixedly mounted on the top of the bottom plate (1), a pressing mechanism (3) is provided on the top of the support frame (2), an exhaust mechanism (4) is provided on the top of the bottom plate (1) near the pressing mechanism (3), the exhaust mechanism (4) comprises an air pump (41) fixedly mounted on the top of the bottom plate (1), an air outlet pipe (45) is connected to the output end of the air pump (41), an air collecting pipe (44) with concentrated air flow is installed on both the output end of the pressing mechanism (3) and the top of the bottom plate (1), the air collecting pipe A main hose (42) is installed on one side of (44), the air outlet pipe (45) is connected to the air collecting pipe (44) through a first connecting pipe (46), an exhaust assembly (48) is provided inside the main hose (42), and the exhaust assembly (48) includes a secondary hose (482) installed inside the main hose (42) for sucking air and discharging bubbles, and an air inlet pipe (47) is installed at the input end of the air pump (41), and the air inlet pipe (47) is connected to the air collecting pipe (44) through a second connecting pipe (481).

2. The membrane switch surface processing equipment according to claim 1, characterized in that: An upper circuit chip (7) and a lower circuit chip (9) of a switch surface are provided at the top of the bottom plate (1), and an intermediate diaphragm (8) is provided between the upper circuit chip (7) and the lower circuit chip (9). The two main hoses (42) are respectively located on both sides of the upper circuit chip (7) and the lower circuit chip (9).

3. The membrane switch surface processing equipment according to claim 1, characterized in that: The surface of the main hose (42) close to the gap between the upper circuit chip (7) and the middle diaphragm (8) is connected to a plurality of blowing pipes (49) installed thereon, and the surface of the secondary hose (482) close to the gap between the upper circuit chip (7) and the middle diaphragm (8) is connected to a suction pipe (483) installed thereon, and the free end of the suction pipe (483) is connected to a plurality of sealing rings (486) for sealing the gap.

4. The membrane switch surface processing equipment according to claim 1, characterized in that: The pressing mechanism (3) comprises a hydraulic cylinder (31) fixedly mounted on the top of the support frame (2); a pressing plate (33) is fixedly mounted on the output end of the hydraulic cylinder (31); a telescopic member (34) is fixedly mounted on the bottom end of the pressing plate (33); a compression air bag (35) for exhausting the surface during the pasting process is fixedly mounted on the output shaft of the telescopic member (34); and a telescopic air cavity of the telescopic member (34) is connected to the output end of the air pump (41) via a pressurizing tube (32).

5. The membrane switch surface processing equipment according to claim 3, characterized in that: The interior of the air intake pipe (483) is filled with an adsorption component (484), and the adsorption component (484) includes multiple groups of activated carbon. A breathable film (485) is installed on the inner wall of the air intake pipe (483) close to the gap between the upper circuit sheet (7) and the middle diaphragm (8).

6. The membrane switch surface processing equipment according to claim 4, characterized in that: A fixing plate (43) for stabilizing the gas collecting pipe (44) is fixedly mounted on the side wall of the pressing plate (33) and the top end of the bottom plate (1), and the fixing plate (43) is fixedly connected to the gas collecting pipe (44).

7. The membrane switch surface processing equipment according to claim 1, characterized in that: A support mechanism (6) is provided at the top end of the base plate (1), the support mechanism (6) comprising a driving member (64) fixedly mounted on the top end of the base plate (1), an output shaft of the driving member (64) being fixedly mounted with a support plate (61), and the support plate (61) being located at the bottom end of the lower circuit sheet (9).

8. The membrane switch surface processing equipment according to claim 7, characterized in that: A honeycomb-shaped reinforcement rib (62) is fixedly mounted on the bottom end of the bottom plate (1), and a top plate (63) for stabilizing the support plate (61) is fixedly mounted between the output shaft of the driving member (64) and the reinforcement rib (62).

9. The membrane switch surface processing equipment according to claim 1, characterized in that: A limiting mechanism (5) is provided on both sides of the support frame (2), the limiting mechanism (5) comprising an electric push rod (52) fixedly mounted on the inner wall of the support frame (2), a clamping plate (51) fixedly mounted on the output end of the electric push rod (52), and a limiting plate for positioning the main hose (42) fixedly mounted on the bottom end of the clamping plate (51) close to the two fixing plates (43).

10. The membrane switch surface processing equipment according to claim 1, characterized in that: A protective plate (11) is fixedly mounted on the top of the bottom plate (1), a positioning rod (10) is fixedly mounted in the middle of the protective plate (11), and the positioning rod (10) slides through the support plate (61), the lower circuit sheet (9), the middle diaphragm (8), and the upper circuit sheet (7) in sequence.

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