Rapid curing device for conductive film production

Abstract

The utility model belongs to the technical field of conductive film production, and discloses a rapid curing device for conductive film production, which comprises a case, an upper mounting rack, a lower mounting rack, an upper conveying assembly and a lower conveying assembly, two mounting plates are vertically arranged in the case at an interval, and curing lamp groups are arranged on the bottom surfaces of the mounting plates; two circular plates are horizontally arranged on the lower mounting frame at intervals, a partition plate is arranged between the two circular plates, a rotating pipe is rotationally arranged on the two circular plates jointly, a driving assembly for driving the rotating pipe to rotate is arranged on the lower mounting frame, and a plurality of air suction holes are formed in the rotating pipe; the side, away from the upper mounting frame, of one circular plate communicates with an air suction pipe, an air suction pump is arranged on the outer wall of the machine box, and the air suction pipe penetrates through the machine box to be connected with the air suction end of the air suction pump. Compared with single-side irradiation, double-side irradiation is carried out on the conductive film, sufficient curing is guaranteed, meanwhile, the irradiation time does not need to be prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of conductive film production technology, and in particular to a rapid curing device for conductive film production. Background Technology

[0002] Conductive film has various definitions, but it generally refers to the 'multi-layered' thin film in input devices such as keyboards. The keyboard conductive film is one of the core components of a membrane keyboard, primarily used to trigger key signals. It is a circuit structure composed of multiple flexible thin films; pressing the key makes contact between the upper and lower layers, achieving conductivity. Keyboard conductive films typically consist of three flexible thin films: an upper conductive film, a lower conductive film, and an intermediate insulating layer (an insulating film with perforations). There are several methods for producing conductive films. One method involves screen printing conductive paste onto a flexible film to create a thin-film circuit, which is then rapidly surface-cured by UV light in a curing apparatus.

[0003] Currently, most curing devices only irradiate the conductive film from the top using a UV lamp. Because ultraviolet light has limited penetration depth in the material, the surface area near the light source cures quickly, while the underlying layer cures insufficiently. To ensure adequate curing of the underlying layer, the production process must extend the irradiation time, thus reducing production efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a rapid curing device for the production of conductive films.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rapid curing device for conductive film production, comprising a chassis, an upper mounting frame and a lower mounting frame disposed inside the chassis, an upper conveying assembly disposed on the upper mounting frame, a lower conveying assembly disposed on the lower mounting frame, two mounting plates vertically spaced apart inside the chassis, a curing lamp assembly disposed on the bottom surface of the mounting plates, two circular plates horizontally spaced apart on the lower mounting frame, a partition disposed between the two circular plates, a rotating tube rotatably disposed on both circular plates, a driving assembly for driving the rotating tube to rotate disposed on the lower mounting frame, a plurality of suction holes opened on the rotating tube, an exhaust pipe connected to the side of one of the circular plates away from the upper mounting frame, an exhaust pump disposed on the outer wall of the chassis, and the exhaust pipe passing through the chassis and connected to the exhaust end of the exhaust pump.

[0006] By adopting the above technical solution, a chassis, upper conveying assembly, lower mounting frame, rotating tube, drive assembly, and air pump are set up. A circular plate, partition, and rotating tube work together to form two cavities within the rotating tube. The air pump draws air from the cavity furthest from the upper mounting frame, creating negative pressure. This allows outside air to enter the cavity through the suction port, ensuring a constant suction force on the side of the rotating tube furthest from the upper mounting frame. The upper conveying assembly transports the conductive film into the chassis. During transport, the upper curing lamp group irradiates and cures the conductive film from the top. The upper conveying assembly then transports the conductive film to the rotating tube, where it is adsorbed. The drive assembly rotates the rotating tube to transport the conductive film. When the suction port reaches the other cavity, the adsorption force disappears, and the conductive film falls onto the lower conveying assembly, completing its flipping. The lower conveying assembly then transports the conductive film out of the chassis. During transport, the lower curing lamp group irradiates the other side of the conductive film. By irradiating the conductive film from both sides, compared to irradiating from one side, sufficient curing is ensured without extending the irradiation time, thus improving production efficiency.

[0007] Furthermore, a bearing is provided on the circular plate, with the inner ring of the bearing connected to the circular plate and the outer ring connected to the inner wall of the rotating tube.

[0008] Furthermore, the inner wall of the rotating tube is provided with two sealing rings in the area between the two bearings. The inner rings of the two sealing rings are in contact with the outer walls of the two circular plates respectively. Sealing plates are provided on both the upper and lower sides of the partition plate, and one side of the sealing plate is in contact with the inner wall of the rotating tube.

[0009] Furthermore, the upper conveying assembly includes a plurality of first rotating rollers arranged horizontally at intervals on an upper mounting frame, and an upper conveyor belt is commonly disposed on the plurality of first rotating rollers.

[0010] By adopting the above technical solution, a first rotating roller and an upper conveyor belt are set up to transport the conductive film.

[0011] Furthermore, the lower conveying assembly includes a plurality of horizontally spaced second rotating rollers rotatably mounted on a lower mounting frame, and a lower conveyor belt is commonly mounted on the plurality of second rotating rollers.

[0012] By adopting the above technical solution, a second rotating roller and a lower conveyor belt are set up to transport the conductive film.

[0013] Furthermore, a rotating shaft is horizontally rotatably mounted on the lower mounting bracket. A first sprocket and a second sprocket are fixedly mounted on the rotating shaft. A third sprocket is mounted on the first rotating roller located at the innermost side of the chassis. The third sprocket is connected to the first sprocket via a first chain. A fourth sprocket is mounted on the second rotating roller located at the innermost side of the chassis. The fourth sprocket is connected to the second sprocket via a second chain. A power motor is horizontally mounted on the lower mounting bracket, and the output shaft of the power motor is connected to the rotating shaft.

[0014] By adopting the above technical solution, a rotating shaft, a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, and a power motor are set up. The power motor drives the rotating shaft to rotate, which in turn drives the first sprocket and the second sprocket to rotate. This, in turn, drives the third sprocket and the fourth sprocket to rotate via the first chain and the second chain, which in turn drives the corresponding first rotating roller and the second rotating roller to rotate. This causes the upper conveyor belt and the lower conveyor belt to move and transport the conductive film.

[0015] Furthermore, the drive assembly includes a drive motor horizontally mounted on the lower mounting bracket, a gear fixedly sleeved on the output shaft of the drive motor, and a gear ring concentrically mounted on the rotating tube, the gear ring meshing with the gear.

[0016] By adopting the above technical solution, a drive motor, gear, and gear ring are set up. The drive motor drives the gear to rotate, thereby driving the gear ring and rotating tube to rotate.

[0017] In summary, this utility model has the following beneficial effects: This application includes a chassis, an upper conveying assembly, a lower mounting frame, a rotating tube, a drive assembly, and an air pump. A circular plate, a partition, and the rotating tube work together to form two cavities within the rotating tube. The air pump draws air from the cavity furthest from the upper mounting frame, creating negative pressure. This allows outside air to enter the cavity through the suction port, ensuring a constant suction force on the side of the rotating tube furthest from the upper mounting frame. The upper conveying assembly conveys the conductive film into the chassis. During this process, the upper curing lamp irradiates and cures the conductive film from the top. The upper conveying assembly then conveys the conductive film to the rotating tube, where it is adsorbed. The drive assembly rotates the rotating tube to continue conveying the conductive film. When the suction port reaches the other cavity, the adsorption force disappears, and the conductive film falls onto the lower conveying assembly, completing its flipping. The lower conveying assembly then conveys the conductive film out of the chassis. During this process, the lower curing lamp irradiates the other side of the conductive film. By irradiating the conductive film from both sides, compared to irradiating from one side, sufficient curing is ensured without extending the irradiation time, thus improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the chassis according to an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a schematic diagram of the upper and lower mounting brackets in an embodiment of this utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of part B;

[0023] Figure 6 yes Figure 4 Enlarged view of part C;

[0024] Figure 7 This is a schematic diagram of the structure of the rotating tube implemented in this utility model.

[0025] In the diagram: 10. Chassis; 11. Upper mounting frame; 12. Lower mounting frame; 20. Upper conveyor assembly; 21. First rotating roller; 22. Upper conveyor belt; 30. Lower conveyor assembly; 31. Second rotating roller; 32. Lower conveyor belt; 40. Mounting plate; 41. Curing lamp assembly; 50. Circular plate; 51. Partition plate; 52. Rotating tube; 53. Suction hole; 54. Extraction pipe; 55. Extraction pump; 56. Bearing; 57. Sealing ring; 58. Sealing plate; 60. Drive assembly; 61. Drive motor; 62. Gear; 63. Gear ring; 70. First sprocket; 71. Second sprocket; 72. Third sprocket; 73. First chain; 74. Fourth sprocket; 75. Second chain; 76. Power motor. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] like Figure 1-7As shown in the illustration, this application discloses a rapid curing apparatus for conductive film production, including a chassis 10, an upper conveying assembly 20, a lower conveying assembly 30, a drive assembly 60, and a vacuum pump 55. An upper mounting frame 11 and a lower mounting frame 12 are disposed within the chassis 10. The upper conveying assembly 20 is mounted on the upper mounting frame 11, and the lower conveying assembly 30 is mounted on the lower mounting frame 12. Two horizontally arranged mounting plates 40 are vertically spaced within the chassis 10. A curing lamp group 41 is disposed on the bottom surface of each mounting plate 40. The upper mounting plate 40 is located above the upper mounting frame 11 and is used to irradiate the conductive film on the upper conveying assembly 20. The lower mounting plate 40 is located between the upper mounting frame 11 and the lower mounting frame 12 and is used to irradiate the conductive film on the lower conveying assembly 30. Two circular plates 50 are horizontally spaced on the lower mounting bracket 12, with a partition 51 vertically positioned between them. A rotating tube 52 is rotatably mounted on both circular plates 50. A drive assembly 60 is mounted on the lower mounting bracket 12 to drive the rotating tube 52 to rotate. The rotating tube 52 has several suction holes 53. One of the circular plates 50, on the side furthest from the upper mounting bracket 11, is connected to an extraction pipe 54. An extraction pump 55 is located on the outer wall of the housing 10, and the extraction pipe 54 passes through the housing 10 and connects to the extraction end of the extraction pump 55. The circular plates 50, partition 51, and rotating tube 52 work together to form two cavities within the rotating tube 52. The extraction pump 55 draws air from the cavity furthest from the upper mounting bracket 11, creating a negative pressure that allows outside air to enter the cavity through the suction holes 53, ensuring that there is always suction on the side of the rotating tube 52 furthest from the upper mounting bracket 11. The upper conveying assembly 20 conveys the conductive film into the housing 10. During the conveying process, the upper curing lamp assembly 41 irradiates and cures the conductive film from the top. Then, the upper conveying assembly 20 conveys the conductive film to the rotating tube 52, where it is adsorbed. The driving assembly 60 drives the rotating tube 52 to rotate and convey the conductive film. When the suction hole 53 reaches the other cavity, the adsorption force disappears, and the conductive film falls onto the lower conveying assembly 30, completing the flipping process. The lower conveying assembly 30 then conveys the conductive film out of the housing 10. During the conveying process, the lower curing lamp assembly 41 irradiates the other side of the conductive film. Double-sided irradiation of the conductive film, compared to single-sided irradiation, ensures sufficient curing without extending the irradiation time, thus improving production efficiency.

[0028] Specifically, a bearing 56 is provided on the circular plate 50. The inner ring of the bearing 56 is connected to the circular plate 50, and the outer ring is connected to the inner wall of the rotating tube 52 to ensure the stability of the rotation of the rotating tube 52. Two sealing rings 57 are also provided in the area between the two bearings 56 on the inner wall of the rotating tube 52. The inner rings of the two sealing rings 57 are in contact with the outer walls of the two circular plates 50 respectively. Sealing plates 58 are provided on both the upper and lower sides of the partition plate 51. One side of the sealing plate 58 is in contact with the inner wall of the rotating tube 52 to reduce the amount of air entering the cavity away from the upper mounting bracket 11 from places other than the air intake hole 53, so as to ensure that the air intake hole 53 has sufficient suction force when adsorbing the conductive film.

[0029] In configuration, the upper conveying assembly 20 includes a plurality of horizontally spaced first rotating rollers 21 rotatably mounted on the upper mounting frame 11, and an upper conveyor belt 22 is commonly mounted on the plurality of first rotating rollers 21 for conveying the conductive film. The lower conveying assembly 30 includes a plurality of horizontally spaced second rotating rollers 31 rotatably mounted on the lower mounting frame 12, and a lower conveyor belt 32 is commonly mounted on the plurality of second rotating rollers 31 for conveying the conductive film. A rotating shaft is horizontally mounted on the lower mounting frame 12. A first sprocket 70 and a second sprocket 71 are fixedly mounted on the rotating shaft. A third sprocket 72 is mounted on the first rotating roller 21 located at the innermost side of the housing 10. The third sprocket 72 is connected to the first sprocket 70 via a first chain 73. A fourth sprocket 74 is mounted on the second rotating roller 31 located at the innermost side of the housing 10. The fourth sprocket 74 is connected to the second sprocket 71 via a second chain 75. A power motor 76 is horizontally mounted on the lower mounting frame 12. The output shaft of the power motor 76 is connected to the rotating shaft. The power motor 76 drives the rotating shaft to rotate, which in turn drives the first sprocket 70 and the second sprocket 71 to rotate. This, in turn, drives the third sprocket 72 and the fourth sprocket 74 to rotate via the first chain 73 and the second chain 75. This, in turn, drives the corresponding first rotating roller 21 and second rotating roller 31 to rotate, causing the upper conveyor belt 22 and the lower conveyor belt 32 to move and transport the conductive film.

[0030] In a specific configuration, the drive assembly 60 includes a drive motor 61 horizontally mounted on the lower mounting bracket 12. A gear 62 is fixedly sleeved on the output shaft of the drive motor 61, and a gear ring 63 is concentrically mounted on the rotating tube 52. The gear ring 63 meshes with the gear 62, and the drive motor 61 drives the gear 62 to rotate, thereby driving the gear ring 63 and the rotating tube 52 to rotate.

[0031] The operating principle of the rapid curing device for conductive film production in this embodiment is as follows: The vacuum pump 55, power motor 76, and drive motor 61 are activated. The vacuum pump 55 draws air from the cavity on the side away from the upper mounting frame 11, creating a negative pressure that allows outside air to enter the cavity through the suction port 53. The power motor 76 drives the rotating shaft to rotate, causing the first sprocket 70 and the second sprocket 71 to rotate. This, in turn, drives the third sprocket 72 and the fourth sprocket 74 to rotate via the first chain 73 and the second chain 75. This, in turn, drives the corresponding first rotating roller 21 and the second rotating roller 31 to rotate, causing the upper conveyor belt 22 and the lower conveyor belt 32 to move and transport the conductive film. The conductive film is placed on the upper conveyor belt 22, and the upper conveyor assembly 20 conveys the conductive film into the housing 10. During the conveying process, the upper curing lamp group 41 irradiates and cures the conductive film from the top side. Then, the upper conveyor belt 22 conveys the conductive film to the rotating tube 52, where the conductive film is adsorbed. The drive motor 61 drives the gear 62, the gear ring 63, and the rotating tube 52 to rotate and convey the conductive film. When the suction hole 53 reaches the cavity on the other side, the adsorption force disappears, and the conductive film falls onto the lower conveyor belt, completing the flipping. The conductive film is then conveyed out of the housing 10 by the lower conveyor belt 32. During the conveying process, the lower curing lamp group 41 irradiates the other side of the conductive film.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rapid curing apparatus for the production of conductive films, characterized in that: The system includes a chassis (10), which contains an upper mounting bracket (11) and a lower mounting bracket (12). The upper mounting bracket (11) has an upper conveying assembly (20), and the lower mounting bracket (12) has a lower conveying assembly (30). Two mounting plates (40) are vertically spaced within the chassis (10), and a curing lamp assembly (41) is mounted on the bottom surface of each mounting plate (40). Two circular plates (50) are horizontally spaced on the lower mounting bracket (12), and a spacer is provided between the two circular plates (50). A rotating tube (52) is rotatably mounted on two circular plates (50). A driving assembly (60) for driving the rotating tube (52) to rotate is mounted on the lower mounting bracket (12). Several suction holes (53) are opened on the rotating tube (52). An air extraction pipe (54) is connected to one of the circular plates (50) away from the upper mounting bracket (11). An air extraction pump (55) is mounted on the outer wall of the chassis (10). The air extraction pipe (54) passes through the chassis (10) and is connected to the air extraction end of the air extraction pump (55).

2. The rapid curing apparatus for conductive film production according to claim 1, characterized in that: A bearing (56) is provided on the circular plate (50), the inner ring of the bearing (56) is connected to the circular plate (50), and the outer ring is connected to the inner wall of the rotating tube (52).

3. The rapid curing apparatus for conductive film production according to claim 2, characterized in that: The inner wall of the rotating tube (52) is provided with two closed rings (57) in the area between the two bearings (56). The inner rings of the two closed rings (57) are in contact with the outer walls of the two circular plates (50) respectively. The partition (51) is provided with closed plates (58) on both the upper and lower sides. One side of the closed plate (58) is in contact with the inner wall of the rotating tube (52).

4. The rapid curing apparatus for conductive film production according to claim 1, characterized in that: The upper conveying assembly (20) includes a plurality of first rotating rollers (21) arranged horizontally at intervals on an upper mounting frame (11), and an upper conveyor belt (22) is provided on the plurality of first rotating rollers (21).

5. A rapid curing apparatus for producing conductive films according to claim 4, characterized in that: The lower conveying assembly (30) includes a plurality of horizontally spaced second rotating rollers (31) rotatably mounted on a lower mounting frame (12), and a lower conveyor belt (32) is provided on the plurality of second rotating rollers (31).

6. A rapid curing apparatus for producing conductive films according to claim 5, characterized in that: A rotating shaft is horizontally rotatably mounted on the lower mounting bracket (12). A first sprocket (70) and a second sprocket (71) are fixedly mounted on the rotating shaft. A third sprocket (72) is mounted on the first rotating roller (21) located at the innermost side of the housing (10). The third sprocket (72) is connected to the first sprocket (70) via a first chain (73). A fourth sprocket (74) is mounted on the second rotating roller (31) located at the innermost side of the housing (10). The fourth sprocket (74) is connected to the second sprocket (71) via a second chain (75). A power motor (76) is horizontally mounted on the lower mounting bracket (12). The output shaft of the power motor (76) is connected to the rotating shaft.

7. The rapid curing apparatus for conductive film production according to claim 1, characterized in that: The drive assembly (60) includes a drive motor (61) horizontally mounted on the lower mounting bracket (12), a gear (62) is fixedly sleeved on the output shaft of the drive motor (61), and a gear ring (63) is concentrically mounted on the rotating tube (52), the gear ring (63) meshing with the gear (62).

Images