Film pasting and supplying device for microphone production

Abstract

The utility model discloses a film for microphone production, which comprises a film body, and is characterized in that the film body comprises a shielding area for covering a microphone pickup hole, bonding areas respectively positioned on two sides of the shielding area, and a trapezoidal film uncovering area positioned on the same side of the shielding area and the bonding areas, and high-temperature glue is arranged in the bonding area. The utility model further provides a film supply device for the pasting film. The beneficial effects of the utility model are that: 1, each area and shape in the film body are reasonably designed, so that the film body can be conveniently separated from the film belt, and the microphone can be protected in the production process; 2, a pi film is adopted, so that the microphone is resistant to high temperature, anti-static, free of adhesive residues and harmless to the microphone; and 3, all the components in the film supply device are reasonable in layout, small in occupied space and capable of adapting to films of different sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of microphone production supporting equipment, and in particular relates to a film pasting and film supplying device used in microphone production. Background Art

[0002] In recent years, with the rapid development of the new energy vehicle market, the demand for car microphones has become increasingly higher. In the production process of car silicon microphone PCBA, the problem of silicon microphone pollution sensitivity is prominent due to the leakage of the pickup hole. The pollution caused by environmental particles and foreign objects such as internal pollution of SMT reflow soldering, dust from sub-boards, and turnover transportation entering the pickup hole is becoming increasingly serious, affecting the quality of the product. The current solution is usually to stick a film on the pickup hole to block the entry of external particles, foreign objects, etc., such as CN115595078A and CN110944276A. However, the films of the above structures are all multi-layer structures, which have the disadvantages of complex structure and high cost. At the same time, it is also not conducive to removing them from the film tape to stick them to the pickup hole. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a film and a film supply device for microphone production. The film has a simple structure and low cost, and can be easily removed from the film belt through the film supply device.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a film for microphone production, including a film body, the key point is: the film body includes a shielding area for covering the microphone pickup hole, bonding areas respectively located on both sides of the shielding area, and a trapezoidal film-releasing area located on the same side of the shielding area and the bonding area, and high-temperature glue is provided in the bonding area.

[0005] Furthermore, the shielding area and the bonding area are in strip shape and have the same length.

[0006] Furthermore, the film body is an antistatic PI film.

[0007] Based on the above-mentioned film pasting, the utility model also provides a film supply device, including a material tray, a material stripping assembly and a belt taking-up assembly arranged on a frame, the key point is: a film belt is arranged on the material tray, and the above-mentioned film pasting is arranged on the film belt.

[0008] Furthermore, the stripping assembly includes a stripping bracket arranged on the frame, a stripping block arranged on the stripping bracket, a pressure plate arranged above the stripping block and cooperating with the stripping block to form a film strip moving channel, and a drop block located on one side of the stripping block and used to receive the film. The gap between the stripping block and the drop block is arranged to form a redirection channel for the film strip.

[0009] Furthermore, a sensor for detecting film sticking is provided in the strip groove in the blanking block.

[0010] Furthermore, an adjustment component for driving the sensor to move horizontally along the strip groove is provided in the stripping bracket, and the adjustment component includes a mounting plate for connecting the sensor, a guide column arranged between the mounting plate and the stripping bracket, and an adjustment screw arranged between the mounting plate and the stripping bracket.

[0011] Furthermore, a guide assembly for guiding the film tape is provided on the stripping bracket, and the guide assembly includes two parallel guide plates and a guide column provided between the two guide plates and the stripping bracket.

[0012] Furthermore, the tape-taking assembly includes a tape-taking bracket arranged on the frame and a tape-taking roller driven by a motor.

[0013] Furthermore, the tape taking-up assembly also includes a driving roller for driving the tape taking-up roller to rotate and a force-applying assembly for driving the film tape on the tape taking-up roller to contact the driving roller, the force-applying assembly includes a sliding bracket with a sliding limit on the tape taking-up bracket, a connecting shaft arranged on the tape taking-up bracket, a connecting block fixed on the connecting shaft, a mounting shaft arranged on the connecting block, and a force-applying roller arranged on the mounting shaft and in contact with the sliding bracket, the tape taking-up roller is arranged on the sliding bracket, and the tape taking-up bracket is provided with an arc groove for limiting one end or both ends of the mounting shaft.

[0014] The beneficial effects of the utility model are: 1. By reasonably designing the various areas and shapes in the film body, it is easy to separate from the film tape, so that the microphone can be protected during the production process; 2. The PI film is used, which is resistant to high temperature, anti-static, and has no residual glue, and does not harm the microphone; 3. The components in the film supply device are reasonably arranged, occupying a small space, and can be adapted to films of different sizes.

[0015] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the film used for microphone production of the utility model;

[0017] Figure 2 It is a schematic diagram of the arrangement of the film on the film strip;

[0018] Figure 3 It is a structural schematic diagram of the film supply device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the stripping component in the film supply device of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the stripping component in the film supply device of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the belt collection component in the film supply device of the utility model;

[0022] Figure 7 It is a schematic diagram of the internal structure of the belt taking-up component in the film supply device of the utility model;

[0023] Figure 8 It is a structural schematic diagram of a material pressing plate in a film supply device of the utility model.

[0024] In the attached drawings, 1, film body, 1-1, shielding area, 1-2, bonding area, 1-3, film peeling area, 1-4, high temperature glue, 2, film belt, 3, frame, 4, material tray, 5, material tray shaft, 6, stripping bracket, 7, stripping block, 7-1, stripping end, 8, blanking block, 8-1, strip groove, 9, pressing plate, 9-1, adjusting groove, 10, pressing bracket, 10-1, boss, 11, pressing plate fixing plate, 12. Sensor, 13. Mounting plate, 14. Guide column, 15. Adjusting screw, 16. Guide plate, 17. Guide column, 18. Take-up bracket, 18-1, Arc groove, 19. Take-up roller, 20. Driving roller, 21. Sliding bracket, 22. Connecting shaft, 23. Connecting block, 24. Mounting shaft, 25. Force roller, 26. Adjusting bolt, 27. Force handle. The arrow represents the moving direction of the film tape. DETAILED DESCRIPTION

[0025] See attached Figure 1 The utility model provides a film for microphone production, including a film body 1, the film body 1 includes a shielding area 1-1 for covering the microphone pickup hole, bonding areas 1-2 respectively located on both sides of the shielding area 1-1, and a trapezoidal film-removing area 1-3 located on the same side of the shielding area 1-1 and the bonding area 1-2, and a high-temperature glue 1-4 is provided in the bonding area 1-2. The shielding area 1-1 and the bonding area 1-2 are strip-shaped and have the same length, and the width of the shielding area 1-1 is greater than the width of the bonding area 1-2. The film body 1 is preferably an anti-static pi film. By setting the film-removing area 1-3 to be trapezoidal, such a design facilitates the film to be removed from the film tape 2.

[0026] See attached Figure 2 In specific use, the above-mentioned films are evenly arranged in sequence along the length direction of the film strip 2, and the film peeling area is facing the stripping direction.

[0027] See attached Figure 3-8 The utility model provides a film supply device for the above-mentioned film lamination, which includes a material tray 4 arranged on a frame 3, a stripping component and a belt taking-up component.

[0028] See attached Figure 3 A material tray rotating shaft 5 is rotatably arranged on the frame 3, and the material tray 4 is fixed on the material tray rotating shaft 5. The film strip 2 with the film is wound on the material tray 4.

[0029] See attached Figure 3-5 8, the stripping assembly includes a stripping bracket 6 arranged on the frame 3, a stripping block 7 arranged on the stripping bracket 6, a pressure plate 9 arranged above the stripping block 7 and cooperating with the stripping block 7 to form a film strip moving channel, and a blanking block 8 located on one side of the stripping block 7 and used to receive the film. The gap between the stripping block 7 and the blanking block 8 forms a redirection channel for the film strip 2. The stripping end 7-1 of the stripping block 7 is arranged to be tilted upward and the thickness gradually decreases, so that the film strip 2 is separated from the film when passing through the end of the stripping end 7-1. The pressure plate 9 prevents the film from tilting during the separation of the film from the film strip 2, so as to ensure that the film enters the blanking block 8 flush. The pressure plate 9 is connected to the stripping bracket 6 through the pressure bracket 10, and a boss 10-1 extending downward is provided on the pressure bracket 10, so that the film strip 2 moves obliquely upward after passing through the boss 10-1. The pressure plate 9 is connected to the pressure bracket 10 through the pressure plate fixing plate 11 and matching screws. The pressing plate 9 is provided with an adjusting groove 9 - 1 , and the connection distance between the pressing plate 9 and the pressing bracket 10 can be adjusted to be suitable for different film laminations.

[0030] A sensor 12 for detecting film application is provided in the strip groove 8-1 in the blanking block 8. In order to adapt the device to films of different sizes, an adjustment component for driving the sensor 12 to move horizontally along the strip groove 8-1 is provided in the stripping bracket 6. The adjustment component includes a mounting plate 13 for connecting the sensor 12, a guide column 14 provided between the mounting plate 13 and the stripping bracket 6, and an adjustment screw 15 provided between the mounting plate 13 and the stripping bracket 6. The mounting plate 13 is adjusted along the guide column 14 by rotating the adjustment screw 15.

[0031] A guide assembly for guiding the film strip 2 to be stripped is provided on the stripping bracket 6 and on the other side of the stripping block 7. The guide assembly includes two parallel guide plates 16 and a guide post 17 provided between the two guide plates 16 and the stripping bracket 6. Two guide posts 17 are provided and both pass through the two guide plates 16, and guide grooves for guiding the film strip 2 are provided on the two guide plates 16. In specific use, the distance between the guide plates 16 and the guide posts 17 is manually adjusted to achieve adjustment to accommodate film strips of different sizes.

[0032] See attached Figure 3 , 67, the above-mentioned take-up assembly includes a take-up bracket 18 arranged on the frame 3 and a take-up roller 19 driven by a motor. The take-up assembly also includes a driving roller 20 for driving the take-up roller 19 to rotate and a force-applying assembly for driving the film tape on the take-up roller 19 to contact the driving roller 20, and the driving end of the motor is connected to the driving roller 20. The force-applying assembly includes a sliding bracket 21 slidably limited on the take-up bracket 18, a connecting shaft 22 arranged on the take-up bracket 18, a connecting block 23 fixed on the connecting shaft 22, a mounting shaft 24 arranged on the connecting block 23, and two force-applying rollers 25 arranged on the mounting shaft 24 and in contact with the sliding bracket 21, and an arc groove 18-1 is provided on the take-up bracket 18 to limit one end or both ends of the mounting shaft 24. The take-up roller 19 is rotatably arranged on the sliding bracket 21. The arc groove 18-1 is limited by the mounting shaft 24 so that the force-applying roller 25 is stably in a force-applying or non-force-applying state. In this embodiment, both ends of the mounting shaft 24 are limited. An adjusting bolt 26 in contact with the force roller 25 is threadedly connected to the sliding bracket 21. Since the force roller 25 is eccentrically arranged relative to the connecting shaft 22, it will contact the adjusting bolt 26 under the action of gravity, thereby causing the sliding bracket 21 to move away from the connecting shaft 22 so that the film tape on the take-up roller 19 contacts the driving roller 20, thereby driving the take-up roller 19 to rotate under the drive of the driving roller 20 to achieve winding of the film tape. While winding the film tape, the sliding bracket 21 will be driven to move toward the connecting shaft 22, at which time the force roller 25 will rotate around the connecting shaft 2 and the mounting shaft 24 will move along the arc groove 18-1. A force handle 27 is also installed on the connecting shaft 22 and the mounting shaft 24 to further increase the magnitude of the force applied by the roller 25 to the adjusting bolt 26. By rotating the force handle 27, it is also possible to quickly switch between the two states of no force and force, which is convenient for replacing the take-up roller 19. The force applying handle 27 can be arranged at a certain angle away from the connecting block 23 so that the force applying roller 25 can be stably in a force applying or non-force applying state.

[0033] The specific working process of the film supply device is as follows: driven by the motor, the take-up roller 19 rotates to move the film tape 2 in the set direction. When the film moves to the stripping end 7-1, the film will be separated from the film tape 2, and the film will move to the blanking block 8 and be sensed by the sensor 12. After the film is peeled off, the film tape 2 is finally rolled up by the take-up roller 19. At this time, the matching film sticking device will absorb the film on the blanking block 8 and stick it to the sound pickup hole of the microphone.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A film for microphone production, comprising a film body (1), characterized in that: The film body (1) comprises a shielding area (1-1) for covering the microphone pickup hole, bonding areas (1-2) located on both sides of the shielding area (1-1), and a trapezoidal film peeling area (1-3) located on the same side of the shielding area (1-1) and the bonding area (1-2), and high-temperature glue (1-4) is provided on the bonding area (1-2).

2. The film for microphone production according to claim 1, characterized in that: The shielding area (1-1) and the bonding area (1-2) are in strip shape and have the same length.

3. The film for microphone production according to claim 1, characterized in that: The film body (1) is an antistatic PI film.

4. A film supply device, comprising a material tray (4) arranged on a frame (3), a stripping assembly and a belt taking-up assembly, characterized in that: A film strip (2) is provided on the material tray (4), and a film according to any one of claims 1 to 3 is provided on the film strip (2).

5. The film supply device according to claim 4, characterized in that: The stripping assembly comprises a stripping support (6) arranged on the frame (3), a stripping block (7) arranged on the stripping support (6), a pressing plate (9) arranged above the stripping block (7) and cooperating with the stripping block (7) to form a film strip moving channel, and a blanking block (8) located on one side of the stripping block (7) and used to receive the film, wherein a gap between the stripping block (7) and the blanking block (8) is provided to form a redirection channel for the film strip (2).

6. The film supply device according to claim 5, characterized in that: A sensor (12) for detecting film sticking is provided in the strip groove (8-1) in the blanking block (8).

7. The film supply device according to claim 6, characterized in that: An adjustment component for driving the sensor (12) to move horizontally along the strip groove (8-1) is provided in the stripping bracket (6), and the adjustment component comprises a mounting plate (13) for connecting the sensor (12), a guide column (14) arranged between the mounting plate (13) and the stripping bracket (6), and an adjustment screw (15) arranged between the mounting plate (13) and the stripping bracket (6).

8. The film supply device according to claim 5, characterized in that: A guide assembly for guiding the film strip (2) is provided on the stripping support (6), and the guide assembly comprises two parallel guide plates (16) and a guide post (17) provided between the two guide plates (16) and the stripping support (6).

9. The film supply device according to any one of claims 4 to 8, characterized in that: The tape take-up assembly comprises a tape take-up bracket (18) arranged on the frame (3) and a tape take-up roller (19) driven by a motor.

10. The film supply device according to claim 9, characterized in that: The tape-taking assembly also includes a driving roller (20) for driving the tape-taking roller (19) to rotate and a force-applying assembly for driving the film tape on the tape-taking roller (19) to contact the driving roller (20), the force-applying assembly including a sliding bracket (21) slidably limited on the tape-taking bracket (18), a connecting shaft (22) arranged on the tape-taking bracket (18), a connecting block (23) fixed on the connecting shaft (22), a mounting shaft (24) arranged on the connecting block (23), and a force-applying roller (25) arranged on the mounting shaft (24) and in contact with the sliding bracket (21), the tape-taking roller (19) is arranged on the sliding bracket (21), and an arc groove (18-1) is provided on the tape-taking bracket (18) for limiting one end or both ends of the mounting shaft (24).

Images