Automatic rubber coating machine for PCB (Printed Circuit Board)

Abstract

The utility model discloses an automatic rubber coating machine for a PCB, which comprises a rubber coating rack, a rubber coating and cutting integrated mechanism, a driving module and a rubber feeding mechanism, the rubber coating and cutting integrated mechanism, the driving module and the rubber feeding mechanism are all arranged on the rubber coating rack, and the rubber feeding mechanism is arranged above the rubber coating and cutting integrated mechanism. According to the automatic rubber coating machine of the PCB, the driving module drives the rubber coating and cutting integrated structure to reciprocate between the initial position and the rubber coating position, the rubber coating and cutting integrated structure can rapidly and accurately cut off the rubber belt at the rubber cutting position, the rubber belt is evenly attached to the outer edge of the PCB at the rubber coating position, rubber coating and cutting are carried out at the same time, and the rubber coating efficiency is improved. The rubber conveying structure continuously conveys the rubber belt to the rubber conveying position, automation of the rubber coating process is achieved, rubber coating and rubber tapping operation can be rapidly and continuously completed, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing equipment, and more specifically, to an automatic PCB board coating machine. Background Technology

[0002] The existing PCB board manufacturing process typically consists of two routes: manual nailing and adhesive coating, involving pre-treated copper plates, fiberboard, and aluminum foil. These two routes are independent but interconnected through operational processes. From the pre-treated copper plates to the adhesive-coated stacks, they are transported to the nailing stage via workshop trolleys. Then, the fiberboard positioning holes are manually fitted onto the nailing pins on the copper plates. Finally, the aluminum foil is manually placed on the other side of the copper plates. The assembly of the workpiece is completed through four layers of adhesive coating.

[0003] Nail-driving process: manual material loading → nailing → stacking;

[0004] Glue coating process: manual feeding → assembling fiberboard, copper plate and aluminum film together → four gluings → stacking;

[0005] As can be seen from the above process, the current PCB board manufacturing process has the following defects in the encapsulation process: it requires manual assembly of fiberboard, copper plate and aluminum film, and then manual encapsulation four times, which is labor-intensive, has low production efficiency, high labor costs, and long downtime and waiting time for production equipment. Utility Model Content

[0006] In order to overcome the problems of high labor intensity and low production efficiency caused by the need for manual four-stage gluing in the existing PCB manufacturing process, this utility model provides an automatic gluing machine for PCBs.

[0007] The technical solution of this utility model is as follows:

[0008] An automatic PCB board coating machine includes a coating frame, a coating and cutting integrated mechanism, a drive module, and a glue feeding mechanism. The coating and cutting integrated mechanism, the drive module, and the glue feeding mechanism are all mounted on the coating frame. The coating and cutting integrated mechanism is connected to the drive module, and the drive module drives the coating and cutting integrated mechanism to move between an initial position and a coating position. A cutting position is also provided between the initial position and the coating position. The glue feeding mechanism is located above the coating and cutting integrated mechanism, and the glue feeding position of the glue feeding mechanism is located between the initial position and the coating position.

[0009] According to the present invention based on the above solution, the integrated coating and cutting mechanism includes a support block, a first elastic coating unit, a second elastic coating unit, and a cutting unit. The first elastic coating unit, the second elastic coating unit, and the cutting unit are all disposed on the support block. The first elastic coating unit is located below the table of the coating machine frame, and the second elastic coating unit and the cutting unit are both located above the table of the coating machine frame. The first elastic coating unit and the second elastic coating unit cooperate to coat the PCB board, and the cutting unit is located between the first elastic coating unit and the second elastic coating unit.

[0010] According to the present invention based on the above-described scheme, the first elastic rubber-coated unit includes a first rubber-coated wheel, a first roller bracket, and a first spring sheet. The first rubber-coated wheel is rotatably connected to the first roller bracket, the first roller bracket is connected to one end of the first spring sheet, and the other end of the first spring sheet is connected to the support block.

[0011] According to the above-described scheme of this utility model, the second elastic rubber coating unit includes a second rubber coating wheel, a second roller bracket, a guide plate and a support plate. The second rubber coating wheel is rotatably connected to the second roller bracket. The second roller bracket and the support plate are both connected to the guide plate. The support plate is also connected to the support block through a pivot pin.

[0012] According to the present invention based on the above scheme, the second roller support is also connected to the cutting unit.

[0013] According to the present utility model with the above-described solution, the drive module includes a drive motor, a drive wheel, and a connecting plate. The output end of the drive motor is connected to the drive wheel. A support rod is provided on the drive wheel. The support rod is connected to one end of the connecting plate. The other end of the connecting plate is connected to the support block through a connecting block.

[0014] According to the above-described solution, this utility model further includes a guide module, which comprises:

[0015] The first guide unit is located below the drive module. The first guide unit includes a guide rail fixing block, a guide rod, and a locking block. The guide rod is locked to the guide rail fixing block by the locking block. The lower end of the support block is slidably connected to the guide rod and moves along the guide rod between the initial position and the rubber-coated position.

[0016] The second guide unit is located above the drive module. The second guide unit includes two crossbeams. One end of each crossbeam is connected to the rubber coating frame, and the other end is suspended and placed on both sides of the support block. The middle part of the crossbeam is connected to the rubber coating frame through an elastic element.

[0017] According to the above-described solution of this utility model, the glue feeding mechanism includes a glue feeding motor, a tape assembly, and a gear transmission unit. The glue feeding motor, the tape assembly, and the gear transmission unit are all mounted on the gear fixing plate of the glue coating machine frame. The output end of the glue feeding motor is connected to the gear transmission unit. The tape assembly is wound with tape, and the tape is located at the glue feeding position after being driven by the gear transmission unit.

[0018] According to the present invention based on the above-described scheme, the tape assembly includes a tape support frame, a tape sensor sensing steel sheet, and a nylon pad. The tape is wound around the tape reel, the tape reel is mounted on the tape support frame, the tape reel is also in contact with the tape sensor sensing steel sheet, the tape sensor sensing steel sheet and the tape support frame are both connected to the nylon pad, and the nylon pad is rotatably connected to the gear fixing plate.

[0019] According to the above-described scheme of this utility model, the gear transmission unit includes a first bevel gear, a second bevel gear, and a transmission gear connected to the output end of the glue-feeding motor. The first bevel gear and the second bevel gear are meshed together, and the second bevel gear and the transmission gear rotate coaxially.

[0020] The gear transmission unit further includes an upper spring plate, a first gear, and a second gear. The first gear and the second gear are both meshed with the transmission gear. The upper spring plate is mounted on the gear fixing plate. The second gear is rotatably pressed onto the upper spring plate. The second gear has a groove. The upper spring plate has a guide ridge that cooperates with the groove.

[0021] According to the above-described solution, the beneficial effects of this utility model are as follows: An automatic PCB board coating machine of this utility model uses a drive module to drive an integrated coating and cutting structure to reciprocate between an initial position and a coating position. The integrated coating and cutting structure can quickly and accurately cut the tape at the cutting position and evenly adhere the tape to the outer edge of the PCB board at the coating position. Coating and cutting are performed simultaneously to ensure the continuity of the coating process. The tape feeding structure continuously transports the tape to the feeding position, thus automating the coating process. This allows for rapid and continuous completion of coating and cutting operations, improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural diagram of the integrated rubber-coating and cutting structure, the drive module, and the guide module of this utility model;

[0024] Figure 3This is a partial structural diagram of the integrated coating and cutting structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the adhesive feeding mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram of the adhesive delivery structure of this utility model from another perspective;

[0027] Figure 6 This is a cross-sectional view of the tape assembly of this utility model.

[0028] In the figure, the various attached figures are labeled as follows:

[0029] 1. Coating frame; 11. Table; 12. Gear fixing plate; 2. Integrated coating and cutting structure; 21. Support block; 22. First elastic coating unit; 221. First coating wheel; 222. First roller support; 223. First spring; 23. Second elastic coating unit; 231. Second coating wheel; 232. Second roller support; 233. Guide plate; 234. Support plate; 235. Turning pin; 24. Cutting unit; 3. Drive module; 31. Drive motor; 32. Drive wheel; 33. Connecting plate; 34. Connecting block; 4. Glue feeding mechanism; 41. Feeding... 42. Glue motor; 421. Glue assembly; 422. Glue support frame; 423. Glue sensor sensing steel sheet; 424. Nylon pad; 425. Glue reel; 43. Gear transmission unit; 431. First bevel gear; 432. Second bevel gear; 433. Transmission gear; 434. Upper spring; 4341. Guide rib; 435. First gear; 436. Second gear; 4361. Gear groove; 5. Guide module; 51. First guide unit; 511. Guide rail fixing block; 512. Guide rod; 513. Locking block; 52. Second guide unit; 521. Crossbeam. Detailed Implementation

[0030] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. Terms such as "set up" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly defined. Terms such as "upper," "lower," "left," "right," "front," "rear," and "bottom" indicate orientations or positions based on the orientations or positions shown in the accompanying drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0032] It should be noted that the current PCB manufacturing process has the following drawbacks in the encapsulation process: it requires manual assembly of the fiberboard, copper plate and aluminum film, followed by four manual encapsulation processes, which is labor-intensive, has low production efficiency, high labor costs, and long downtime and waiting time for production equipment.

[0033] like Figures 1-6 As shown, an automatic PCB board coating machine is described. The drive module 3 drives the coating and cutting integrated structure 2 to reciprocate between the initial position and the coating position. The coating and cutting integrated structure 2 can quickly and accurately cut the tape at the cutting position and evenly apply the tape to the outer edge of the PCB board at the coating position. Coating and cutting are performed simultaneously to ensure the continuity of the coating process. The tape feeding structure continuously conveys the tape to the feeding position, realizing the automation of the coating process. It can quickly and continuously complete the coating and cutting operations, improving production efficiency.

[0034] Specifically, the automatic PCB board coating machine includes a coating frame 1, a coating and cutting integrated mechanism, a drive module 3, and a glue feeding mechanism 4. The coating and cutting integrated mechanism, the drive module 3, and the glue feeding mechanism 4 are all mounted on the coating frame 1. The coating and cutting integrated mechanism is connected to the drive module 3. The drive module 3 drives the coating and cutting integrated mechanism to move between the initial position and the coating position. A glue cutting position is also provided between the initial position and the coating position. The glue feeding mechanism 4 is located above the coating and cutting integrated mechanism. The glue feeding mechanism 4 conveys the tape to the glue feeding position, and the glue feeding position of the glue feeding mechanism 4 is located between the initial position and the coating position.

[0035] When adhesive coating is required, the adhesive feeding mechanism 4 delivers the adhesive tape to the adhesive feeding position, and the drive module 3 drives the adhesive coating and cutting integrated structure 2 to move from the initial position to the adhesive coating position. The adhesive coating and cutting integrated structure 2 continuously coats the PCB board with adhesive and cuts the adhesive tape at the cutting position. At the adhesive coating position, the adhesive tape can be evenly adhered to the outer edge of the PCB board. After the adhesive coating is completed, the adhesive feeding mechanism 4 stops feeding adhesive, and the drive module 3 drives the adhesive coating and cutting integrated structure 2 to return from the initial position to the adhesive coating position to prepare for the next adhesive coating.

[0036] like Figures 2-3 As shown, in one embodiment, the integrated coating and cutting mechanism includes a support block 21, a first elastic coating unit 22, a second elastic coating unit 23, and a cutting unit 24. The first elastic coating unit 22, the second elastic coating unit 23, and the cutting unit 24 are all disposed on the support block 21. The first elastic coating unit 22 is located below the table 11 of the coating machine frame 1, and the second elastic coating unit 23 and the cutting unit 24 are both located above the table 11 of the coating machine frame 1. The first elastic coating unit 22 and the second elastic coating unit 23 cooperate to coat the PCB board, and the cutting unit 24 is located between the first elastic coating unit 22 and the second elastic coating unit 23.

[0037] The second elastic coating unit 23 is closer to the table 11 than the first elastic coating unit 22. The table 11 has a cutout area for the second elastic coating unit 23 to adhere to the PCB board on the surface of the table 11. The specific coating process is as follows: After the PCB board is transferred to the table 11 of the coating frame 1, the drive module 3 drives the coating and cutting integrated structure 2 to move from the initial position to the coating position. The second elastic coating unit 23 first adheres to the bottom surface of the PCB board. During the movement, the second elastic coating unit 23 pushes the tape under the PCB board so that the tape can be evenly adhered to the bottom surface of the PCB board. At the cutting position, the cutting unit 24 quickly and accurately cuts the tape. The first elastic coating unit 22 then adheres to the surface of the PCB board. During the movement, the first elastic coating unit 22 pushes the tape above the PCB board so that the tape can be evenly adhered to the surface of the PCB board. This allows for fast and continuous completion of the coating and cutting operations.

[0038] The first elastic coating unit 22 includes a first coating wheel 221, a first roller bracket 222, and a first spring sheet 223. The first coating wheel 221 is rotatably connected to the first roller bracket 222. The first roller bracket 222 is connected to one end of the first spring sheet 223, and the other end of the first spring sheet 223 is connected to the support block 21. The first spring sheet 223 allows the first coating wheel 221 to move up and down in the vertical direction according to the slight undulations of the PCB board surface within the elastic range of the first spring sheet 223, thereby ensuring that good contact pressure and adhesion are always maintained.

[0039] The second elastic coating unit 23 includes a second coating wheel 231, a second roller bracket 232, a guide plate 233, and a support plate 234. The second coating wheel 231 is rotatably connected to the second roller bracket 232. The guide plate 233 overlaps the surface of the crossbeam 521, allowing the second elastic coating unit 23 to move along the crossbeam 521 during the coating process, preventing the second elastic coating unit 23 from shifting during the coating process. The second roller bracket 232 and the support plate 234 are both connected to the guide plate 233. At this time, the guide plate 233 acts as an integrated plate, integrating the support plate 234 and the second roller bracket 232. The support plate 234 is connected to the support block 21 through a pivot pin 235. The combination of the support plate 234 and the guide plate 233 ensures that the entire second elastic coating unit 23 maintains stability and accuracy during the movement process.

[0040] The second roller support 232 is also connected to the cutting unit 24, which is closer to the table 11 than the second rubber-coated roller 231, ensuring that the cutting unit 24 and the second rubber-coated roller 231 are coordinated during operation.

[0041] like Figure 2 As shown, in one embodiment, the drive module 3 includes a drive motor 31, a drive wheel 32, and a connecting plate 33. The output end of the drive motor 31 is connected to the drive wheel 32. A support rod is provided on the drive wheel 32, and the support rod is connected to one end of the connecting plate 33. The other end of the connecting plate 33 is connected to the support block 21 via a connecting block 34. When the drive motor 31 starts, it generates torque and drives the drive wheel 32 to rotate. The support rod on the drive wheel 32 rotates accordingly, and the rotational motion is converted into linear motion of the connecting block 34 via the connecting plate 33. The connecting block 34 then pushes the support block 21 to move along a predetermined path. This motion mode allows the drive module 3 to precisely move the integrated rubber-coating and cutting mechanism under control to achieve the required processing or handling operations.

[0042] like Figure 2 As shown, in one embodiment, a guide module 5 is also included. The guide module 5 provides precise guidance for the movement of the integrated overmolding and cutting mechanism between the initial position and the overmolding position, ensuring that the integrated overmolding and cutting mechanism can move along a predetermined path.

[0043] The guide module 5 includes a first guide unit 51 and a second guide unit 52. The first guide unit 51 is located below the drive module 3. The first guide unit 51 includes a guide rail fixing block 511, a guide rod 512 and a locking block 513. The guide rod 512 is locked to the guide rail fixing block 511 by the locking block 513. The lower end of the support block 21 is slidably connected to the guide rod 512. When the drive module 3 drives the support block 21 to move, the support block 21 will move smoothly along the guide rod 512 between the initial position and the rubber-coated position.

[0044] The second guide unit 52 is located above the drive module 3. The second guide unit 52 includes two crossbeams 521. One end of each crossbeam 521 is connected to the coating frame 1, and the other end is suspended and placed on both sides of the support block 21. The middle part of the crossbeam 521 is connected to the coating frame 1 through an elastic element. The guide plate 233 of the second coating unit overlaps on the crossbeams 521 on both sides and slides smoothly along the crossbeams 521 to ensure that the second elastic coating unit 23 and the cutting unit 24 can move along a fixed path.

[0045] like Figures 4-6 As shown, in one embodiment, the adhesive feeding mechanism 4 is used to provide and control the conveying of the adhesive tape during the overcoating process. The adhesive feeding mechanism 4 includes an adhesive feeding motor 41, an adhesive tape assembly 42, and a gear transmission unit 43. The adhesive feeding motor 41, the adhesive tape assembly 42, and the gear transmission unit 43 are all mounted on the gear fixing plate 12 of the overcoating frame 1. The output end of the adhesive feeding motor 41 is connected to the gear transmission unit 43. The adhesive tape is wound on the adhesive tape assembly 42, and the adhesive tape is positioned at the adhesive feeding position after being driven by the gear transmission unit 43. The adhesive feeding motor 41, the adhesive tape assembly 42, and the gear transmission unit 43 work together to achieve stable and continuous conveying of the adhesive tape.

[0046] The tape assembly 42 includes a tape reel 424, a tape support frame 421, a tape sensor sensing plate 422, and a nylon pad 423. Tape is wound on the tape reel 424, which is mounted on the tape support frame 421. The tape reel 424 is also in contact with the tape sensor sensing plate 422. The tape sensor sensing plate 422 senses the remaining amount of tape on the tape reel 424 and transmits a signal to the sensor to remind the user to replace the tape or stop tape feeding. Both the tape sensor sensing plate 422 and the tape support frame 421 are connected to the nylon pad 423, which is rotatably connected to the gear fixing plate 12.

[0047] The gear transmission unit 43 includes a first bevel gear 431, a second bevel gear 432 and a transmission gear 433 connected to the output end of the glue feeding motor 41. The first bevel gear 431 and the second bevel gear 432 are meshed together, and the second bevel gear 432 and the transmission gear 433 rotate coaxially.

[0048] The gear transmission unit 43 also includes an upper spring plate 434, a first gear 435, and a second gear 436. The first gear 435 and the second gear 436 are both meshed with the transmission gear 433. The upper spring plate 434 is mounted on the gear fixing plate 12. The second gear 436 is rotatably pressed on the upper spring plate 434. The second gear 436 has a wheel groove 4361. The upper spring plate 434 has a guide rib 4341 that cooperates with the wheel groove 4361.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0050] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. An automatic PCB board coating machine, characterized in that, The device includes a coating frame, a coating and cutting integrated mechanism, a drive module, and a glue feeding mechanism. The coating and cutting integrated mechanism, the drive module, and the glue feeding mechanism are all mounted on the coating frame. The coating and cutting integrated mechanism is connected to the drive module, which drives the coating and cutting integrated mechanism to move between an initial position and a coating position. A cutting position is also provided between the initial position and the coating position. The glue feeding mechanism is located above the coating and cutting integrated mechanism, and the glue feeding position of the glue feeding mechanism is located between the initial position and the coating position.

2. The automatic PCB board coating machine according to claim 1, characterized in that, The integrated coating and cutting mechanism includes a support block, a first elastic coating unit, a second elastic coating unit, and a cutting unit. The first elastic coating unit, the second elastic coating unit, and the cutting unit are all disposed on the support block. The first elastic coating unit is located below the table of the coating machine frame, and the second elastic coating unit and the cutting unit are located above the table of the coating machine frame. The first elastic coating unit and the second elastic coating unit cooperate to coat the PCB board, and the cutting unit is located between the first elastic coating unit and the second elastic coating unit.

3. An automatic PCB board coating machine according to claim 2, characterized in that, The first elastic rubber-coated unit includes a first rubber-coated wheel, a first roller bracket, and a first spring sheet. The first rubber-coated wheel is rotatably connected to the first roller bracket, the first roller bracket is connected to one end of the first spring sheet, and the other end of the first spring sheet is connected to the support block.

4. An automatic PCB board coating machine according to claim 2 or 3, characterized in that, The second elastic rubber coating unit includes a second rubber coating wheel, a second roller bracket, a guide plate, and a support plate. The second rubber coating wheel is rotatably connected to the second roller bracket. The second roller bracket and the support plate are both connected to the guide plate. The support plate is also connected to the support block via a pivot pin.

5. An automatic PCB board coating machine according to claim 4, characterized in that, The second roller support is also connected to the cutting unit.

6. An automatic PCB board coating machine according to claim 2, characterized in that, The drive module includes a drive motor, a drive wheel, and a connecting plate. The output end of the drive motor is connected to the drive wheel. A support rod is provided on the drive wheel. The support rod is connected to one end of the connecting plate. The other end of the connecting plate is connected to the support block through a connecting block.

7. An automatic PCB board coating machine according to claim 2, characterized in that, It also includes a guide module, which comprises: The first guide unit is located below the drive module. The first guide unit includes a guide rail fixing block, a guide rod, and a locking block. The guide rod is locked to the guide rail fixing block by the locking block. The lower end of the support block is slidably connected to the guide rod and moves along the guide rod between the initial position and the rubber-coated position. The second guide unit is located above the drive module. The second guide unit includes two crossbeams. One end of each crossbeam is connected to the rubber coating frame, and the other end is suspended and placed on both sides of the support block. The middle part of the crossbeam is connected to the rubber coating frame through an elastic element.

8. An automatic PCB board coating machine according to claim 1, characterized in that, The glue feeding mechanism includes a glue feeding motor, a tape assembly, and a gear transmission unit. The glue feeding motor, the tape assembly, and the gear transmission unit are all mounted on the gear fixing plate of the glue coating machine frame. The output end of the glue feeding motor is connected to the gear transmission unit. The tape assembly is wound with tape, and the tape is positioned at the glue feeding position after being driven by the gear transmission unit.

9. An automatic PCB board coating machine according to claim 8, characterized in that, The tape assembly includes a tape reel, a tape support frame, a tape sensor sensing steel plate, and a nylon pad. The tape is wound around the tape reel, which is mounted on the tape support frame. The tape reel is also in contact with the tape sensor sensing steel plate. Both the tape sensor sensing steel plate and the tape support frame are connected to the nylon pad, which is rotatably connected to the gear fixing plate.

10. An automatic PCB board coating machine according to claim 8 or 9, characterized in that, The gear transmission unit includes a first bevel gear, a second bevel gear, and a transmission gear connected to the output end of the glue-feeding motor. The first bevel gear and the second bevel gear are meshed together, and the second bevel gear and the transmission gear rotate coaxially. The gear transmission unit further includes an upper spring plate, a first gear, and a second gear. The first gear and the second gear are both meshed with the transmission gear. The upper spring plate is mounted on the gear fixing plate. The second gear is rotatably pressed against the upper spring plate. The second gear has a groove. The upper spring plate has a guide ridge that cooperates with the groove.

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