A vacuum hole plugging device for copper clad laminate

Abstract

The utility model discloses a kind of vacuum hole-plugging equipment of copper-clad plate, belong to PCB processing technical field, including cabinet, vacuum cabin is arranged in cabinet, front hatch and rear hatch are opened in cabinet, and front hatch and rear hatch are all through with vacuum cabin, front door is hingedly connected on cabinet by hinged shaft, and front door corresponds with front hatch, switch cylinder module is hingedly connected on cabinet by hinged shaft, and the output end of switch cylinder module is hingedly connected on front door by hinged shaft, jacking cylinder module is fixedly connected on cabinet, the output end of jacking cylinder module is fixedly connected with rear door, and rear door is slidably connected on cabinet and corresponds with rear hatch;During hole-plugging process, switch cylinder module pushes front door to close front hatch, vacuum pumping pump module carries out vacuumizing to vacuum cabin, so that the hole-plugging of copper-clad plate is kept in vacuum state, to avoid that hole-plugging material produces bubble in the case of blind hole, affect the quality of PCB board.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing technology, and more specifically, to a vacuum plugging device for copper-clad laminates. Background Technology

[0002] Copper-clad laminate via plugging is a key step in PCB manufacturing. It is mainly used to fill through holes (such as vias, blind holes, and buried holes) in the circuit board to achieve interlayer electrical connection, improve mechanical strength, and optimize signal transmission. Common via plugging materials include resin and copper paste, which are widely used in high-end PCB manufacturing.

[0003] Currently, copper clad laminates are used as the substrate for PCBs. During the manufacturing process of PCBs, some PCBs require via filling. The production method is to use screen printing to place resin or other required working materials on the PCB stencil and use a squeegee or scraper to fill the holes in the PCB with the resin or other materials through a back-and-forth motion. However, in the case of blind holes, the existing via filling method for copper clad laminates is unable to quickly and accurately fill the required materials into the holes due to the influence of air bubbles. Moreover, the presence of air or air bubbles in the working material after filling can easily cause the working material inside the hole to bulge, sink, or become discontinuous. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a vacuum via plugging device for copper clad laminates. This device aims to solve the problems that existing via plugging methods for copper clad laminates, in the case of blind vias, cannot quickly and accurately fill the required material into the via due to the influence of air bubbles. Furthermore, the presence of air or air bubbles in the filling material can easily lead to bulging, depressions, or discontinuities in the filling material within the via.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A vacuum plugging device for copper-clad laminates includes a chassis containing a vacuum chamber. The chassis has a front opening and a rear opening, both communicating with the vacuum chamber. A front door is hinged to the chassis via a hinge shaft, corresponding to the front opening. A switching cylinder module is hinged to the chassis via a hinge shaft, with its output end hinged to the front door. A lifting cylinder module is fixedly connected to the chassis, with its output end fixedly connected to a rear door, which is slidably connected to the chassis and corresponds to the rear opening. A vacuum pump module is fixedly connected inside the chassis, with its input end extending into the vacuum chamber. A belt drive module is installed inside the vacuum chamber, with a displacement base plate slidably connected to it. The displacement base plate, located inside the vacuum chamber and corresponding to the front and rear hatches, is detachably connected to a support platform at its top. A positioning rod assembly is fixedly connected to the bottom of the support platform, and this assembly slides through the displacement base plate. A lifting cylinder module is fixedly connected inside the housing, and its output end extends into the vacuum chamber, corresponding to the support platform. A gear transmission module is installed inside the housing, and a threaded rod assembly is provided on the gear transmission module. A lifting frame is threadedly connected to the circumferential surface of the threaded rod assembly, and this lifting frame slides through the vacuum chamber. A positioning pressure frame is installed inside the lifting frame, and this frame corresponds to the support platform. A pulley transmission module is installed on the lifting frame, and a module with an adjusting cylinder is installed on the pulley transmission module. A scraper is installed at the output end of the adjusting cylinder module, and this scraper corresponds to the positioning pressure frame.

[0009] As a preferred embodiment of this utility model, a PLC controller is fixedly connected to the chassis, and the switching cylinder module, lifting cylinder module, vacuum pump module, belt drive module, lifting cylinder module, gear drive module, pulley drive module and adjusting cylinder module are all electrically connected to the PLC controller.

[0010] As a preferred embodiment of this utility model, a guide rail is fixedly connected inside the vacuum chamber, and the displacement base plate is slidably connected to the guide rail.

[0011] In a preferred embodiment of this utility model, the positioning pressure frame is slidably connected to the lifting frame, and a telescopic cylinder module is movably hinged to the lifting frame via a hinge shaft. The output end of the telescopic cylinder module is movably hinged to the positioning pressure frame via a hinge shaft, and the telescopic cylinder module is electrically connected to the PLC controller.

[0012] As a preferred embodiment of this utility model, two sealing strips are fixedly connected to the chassis, and the two sealing strips are respectively located at the front hatch and the rear hatch, corresponding to the front hatch and the rear hatch.

[0013] As a preferred embodiment of this utility model, a grating sensor is fixedly connected to the chassis, and the grating sensor corresponds to the front hatch.

[0014] 3. Beneficial Effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this solution, the copper-clad laminate is placed on the support platform, and the support platform moves the copper-clad laminate in the vacuum chamber to correspond with the positioning frame. The positioning frame presses the copper-clad laminate to position it, and the scraper reciprocates to insert the hole-filling material into the blind hole of the copper-clad laminate. During the hole-filling process, the switch cylinder module pushes the front door to close the front door, and the vacuum pump module evacuates the vacuum chamber to keep the hole-filling of the copper-clad laminate in a vacuum state, thereby avoiding the generation of air bubbles in the hole-filling material in the blind hole, which would affect the quality of the PCB board. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a perspective view of the present utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the present invention;

[0020] Figure 4 This is a planar sectional view of the present invention;

[0021] Figure 5 This is a partial structural diagram of the chassis in this utility model;

[0022] Figure 6 In this utility model Figure 5 Upper structure diagram;

[0023] Figure 7 This is a bottom structural diagram of the support platform in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Chassis; 2. Vacuum Chamber; 3. Front hatch; 4. Rear hatch; 5. Front door; 6. Switch cylinder module; 7. Lifting cylinder module; 8. Rear door; 9. Vacuum pump module; 10. Belt drive module; 11. Displacement base plate; 12. Support platform; 13. Positioning rod assembly; 14. Lifting cylinder module; 15. Gear drive module; 16. Threaded rod assembly; 17. Lifting frame; 18. Positioning pressure frame; 19. Pulley drive module; 20. Adjusting cylinder module; 21. Scraper; 22. PLC controller; 23. Guide rail; 24. Telescopic cylinder module; 25. Sealing strip; 26. Optical grating sensor. Detailed Implementation

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

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example:

[0030] Please see Figures 1-7A vacuum plugging device for copper-clad laminates includes a chassis 1, a vacuum chamber 2 inside the chassis 1, a front hatch 3 and a rear hatch 4 on the chassis 1, both of which communicate with the vacuum chamber 2. A front door 5 is hinged to the chassis 1 via a hinge shaft, and the front door 5 corresponds to the front hatch 3. A switching cylinder module 6 is hinged to the chassis 1 via a hinge shaft, and the output end of the switching cylinder module 6 is hinged to the front door 5 via a hinge shaft. A lifting cylinder module 7 is fixedly connected to the machine housing 1. The output end of the lifting cylinder module 7 is fixedly connected to the rear hatch 8, and the rear hatch 8 is slidably connected to the machine housing 1, corresponding to the rear hatch opening 4. A vacuum pump module 9 is fixedly connected inside the machine housing 1, and the input end of the vacuum pump module 9 extends into the vacuum chamber 2. A belt drive module 10 is installed inside the vacuum chamber 2, and a displacement base plate 11 is installed on the belt drive module 10. The displacement base plate 11 is slidably connected inside the vacuum chamber 2 and to the front hatch opening. Corresponding to the rear hatch 4, the top of the displacement base plate 11 is detachably connected to a support platform 12. The bottom end of the support platform 12 is fixedly connected to a positioning rod assembly 13, which slides through the displacement base plate 11. A lifting cylinder module 14 is fixedly connected inside the housing 1, and the output end of the lifting cylinder module 14 extends into the vacuum chamber 2, corresponding to the support platform 12. A gear transmission module 15 is installed inside the housing 1, and a threaded rod assembly is installed on the gear transmission module 15. 16. A lifting frame 17 is threadedly connected to the circumferential surface of the threaded rod assembly 16, and the lifting frame 17 slides through the vacuum chamber 2. A positioning pressure frame 18 is provided inside the lifting frame 17, and the positioning pressure frame 18 corresponds to the supporting platform 12. A pulley drive module 19 is provided on the lifting frame 17, and a module with an adjusting cylinder 20 is provided on the pulley drive module 19. A scraper 21 is provided at the output end of the module with the adjusting cylinder 20, and the scraper 21 corresponds to the positioning pressure frame 18.

[0031] In this embodiment, when plugging blind holes in the copper-clad laminate substrate of the PCB board, the retraction of the switching cylinder module 6 drives the front hatch 5 to rotate upward, opening the front hatch 3. The belt drive module 10 drives the displacement base plate 11 to slide within the vacuum chamber 2. The displacement base plate 11 moves the support platform 12 to correspond with the front hatch 3 and the lifting cylinder module 14. The lifting cylinder module 14 penetrates the displacement base plate 11 and lifts the support platform 12 from the front hatch 3, making it convenient for workers to place the copper-clad laminate on the support platform 12 and add plugging material. Then, the lifting cylinder module 14 controls the support platform 12 to descend, causing the positioning rod assembly 13 to penetrate the displacement base plate 11. Plate 11 is positioned and placed. Belt drive module 10 controls the displacement base plate 11 to slide downwards towards the positioning pressure frame 18 within the vacuum chamber 2. Simultaneously, switch cylinder module 6 pushes the front hatch 5 to close the front hatch opening 3. Vacuum pump module 9 evacuates the vacuum chamber 2, thereby aligning the copper-clad laminate on the support platform 12 with the positioning pressure frame 18 under vacuum. Each corner connection of gear drive module 15 is linked by bevel gear meshing, and the threaded rod assembly 16 is rotated by a motor drive. The structure of gear drive module 15 is common knowledge to those skilled in the art, and therefore will not be described in detail. After the lever assembly 16 rotates, the lifting frame 17 moves downward. The downward movement of the lifting frame 17 causes the positioning frame 18 to press and position the copper-clad laminate on the support platform 12. Simultaneously, the lifting frame 17 drives the scraper 21 to align with the copper-clad laminate. The adjustable cylinder module 20 adjusts the position of the scraper 21, bringing it into contact with the plugging material on the copper-clad laminate. The pulley drive module 19 controls the adjustable cylinder module 20 to drive the scraper 21 to reciprocate, causing the scraper 21 to scrape the plugging material evenly onto the copper-clad laminate. After the copper-clad laminate is plugged, the gear drive module 15 controls the threaded lever assembly 16 to rotate in the opposite direction, causing the lifting frame 17 to move downward. The positioning frame 18 and scraper 21 rise and reset. The belt drive module 10 drives the displacement base plate 11 to make the support platform 12 align with the front hatch 3 again. The switch cylinder module 6 retracts and pulls the front hatch 5 to open the front hatch 3, so that the lifting cylinder module 14 passes through the displacement base plate 11 again to lift the support platform 12 from the front hatch 3, which facilitates the handling of copper-clad laminates by the staff. When the equipment needs maintenance and internal mechanism replacement to adapt to different types of copper-clad laminates, the lifting cylinder module 7 controls the rear hatch 8 to open the rear hatch 4. After the rear hatch 4 is opened, it is convenient for the later maintenance of the equipment and the replacement of the internal mechanism.

[0032] Specifically, a PLC controller 22 is fixedly connected to the chassis 1, and the switching cylinder module 6, lifting cylinder module 7, vacuum pump module 9, belt drive module 10, lifting cylinder module 14, gear drive module 15, pulley drive module 19 and adjusting cylinder module 20 are all electrically connected to the PLC controller 22.

[0033] In this embodiment, the PLC controller 22 is used to control the switching cylinder module 6, lifting cylinder module 7, vacuum pump module 9, belt drive module 10, lifting cylinder module 14, gear drive module 15, pulley drive module 19 and adjusting cylinder module 20 on the equipment, so that the equipment can automatically perform hole plugging processing when placed on the copper-clad laminate.

[0034] Specifically, a guide rail 23 is fixedly connected inside the vacuum chamber 2, and the displacement base plate 11 is slidably connected to the guide rail 23.

[0035] In this embodiment, when the belt drive module 10 controls the movement of the displacement base plate 11, the displacement base plate 11 slides in the vacuum chamber 2 via the guide rail 23, and the guide rail 23 ensures the stability of the movement of the displacement base plate 11 and the support platform 12.

[0036] Specifically, the positioning frame 18 is slidably connected to the lifting frame 17, and the lifting frame 17 is movably hinged to the telescopic cylinder module 24 via a hinge shaft. The output end of the telescopic cylinder module 24 is movably hinged to the positioning frame 18 via a hinge shaft. The telescopic cylinder module 24 is electrically connected to the PLC controller 22.

[0037] In this embodiment, the PLC controller 22 can control the telescopic cylinder module 24 to start. The telescopic cylinder module 24 can make the positioning pressure frame 18 slide and finely adjust on the lifting frame 17 by telescopic movement, so as to adapt to the downward positioning during the processing of copper clad laminates of different thicknesses.

[0038] Specifically, two sealing strips 25 are fixedly connected to the chassis 1, and the two sealing strips 25 are located at the front hatch 3 and the rear hatch 4 respectively, corresponding to the front hatch 5 and the rear hatch 8.

[0039] In this embodiment, when the front hatch 5 and the lifting cylinder module 7 close the front hatch 3 and the rear hatch 4 respectively, they will come into contact with two sealing strips 25. The two sealing strips 25 can improve the sealing performance of the front hatch 3 and the rear hatch 4 after they are closed, and ensure the effect of vacuum chamber 2 on vacuum plugging holes of copper-clad laminate.

[0040] Specifically, a grating sensor 26 is fixedly connected to the chassis 1, and the grating sensor 26 corresponds to the front hatch 3.

[0041] In this embodiment, when the worker is picking up and placing copper-clad laminates on the support platform 12, the grating sensor 26 can detect and protect the worker's arm to prevent injury to the worker during the operation of the hole-filling device.

[0042] Working Principle: When plugging blind vias in the copper-clad laminate of a PCB, the switching cylinder module 6 first retracts, causing the front hatch 5 to rotate upwards and open the front hatch 3. The belt drive module 10 drives the displacement base plate 11 to slide within the vacuum chamber 2. The displacement base plate 11 moves the support platform 12 to correspond with the front hatch 3 and the lifting cylinder module 14. The lifting cylinder module 14 penetrates the displacement base plate 11 and lifts the support platform 12 from the front hatch 3, allowing the operator to place the copper-clad laminate on the support platform 12 and add plugging material. Then, the lifting cylinder module 14 controls the support platform 12 to descend, causing the positioning rod group 13 to penetrate the displacement base plate 11 for positioning. The belt drive module 10 controls the displacement base plate 11 to slide towards the lower side of the positioning pressure frame 18 within the vacuum chamber 2. Simultaneously, the switching cylinder module... Group 6 pushes the front hatch 5 to close the front hatch 3. The vacuum pump module 9 evacuates the vacuum chamber 2, so that the copper-clad laminate on the support platform 12 is aligned with the positioning frame 18 in a vacuum state. The gear transmission module 15 controls the threaded rod group 16 to rotate. After the threaded rod group 16 rotates, the lifting frame 17 will move down. After the lifting frame 17 moves down, the positioning frame 18 will press and position the copper-clad laminate on the support platform 12. At the same time, the lifting frame 17 drives the scraper 21 to align with the copper-clad laminate. The module with adjusting cylinder 20 adjusts the position of the scraper 21 so that the scraper 21 contacts the hole-filling material on the copper-clad laminate. The pulley transmission module 19 controls the scraper 21 to move back and forth through the adjusting cylinder module 20, so that the scraper 21 scrapes the hole-filling material evenly on the copper-clad laminate in a vacuum environment.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A vacuum hole-plugging device for copper-clad board, comprising a cabinet (1), characterized in that: The chassis (1) contains a vacuum chamber (2). The chassis (1) has a front hatch (3) and a rear hatch (4), both of which are connected to the vacuum chamber (2). A front door (5) is hinged to the chassis (1) via a hinge shaft, and the front door (5) corresponds to the front hatch (3). A switching cylinder module (6) is hinged to the chassis (1) via a hinge shaft, and the output end of the switching cylinder module (6) is hinged to the front door (5) via a hinge shaft. A lifting cylinder module (7) is fixedly connected to the chassis (1). The output end of the lifting cylinder module (7) is fixedly connected to the rear hatch (8), and the rear hatch (8) is slidably connected to the chassis (1) corresponding to the rear hatch (4). A vacuum pump module (9) is fixedly connected inside the chassis (1), and the input end of the vacuum pump module (9) extends into the vacuum chamber (2). A belt drive module (10) is installed inside the vacuum chamber (2), and a displacement base plate (11) is installed on the belt drive module (10). The displacement base plate (11) is slidably connected inside the vacuum chamber (2) to the front hatch (3) and the rear hatch (4). Correspondingly, a support platform (12) is detachably connected to the top of the displacement base plate (11), and a positioning rod assembly (13) is fixedly connected to the bottom of the support platform (12), with the positioning rod assembly (13) sliding through the displacement base plate (11). A lifting cylinder module (14) is fixedly connected inside the housing (1), and the output end of the lifting cylinder module (14) extends into the vacuum chamber (2) corresponding to the support platform (12). A gear transmission module (15) is provided inside the housing (1), and a threaded rod assembly (16) is provided on the gear transmission module (15). The circumferential surface of the threaded rod assembly (16) is threaded with a lifting frame (17), and the lifting frame (17) slides through the vacuum chamber (2). A positioning pressure frame (18) is provided inside the lifting frame (17), and the positioning pressure frame (18) corresponds to the support platform (12). A pulley drive module (19) is provided on the lifting frame (17), and a module with an adjusting cylinder (20) is provided on the pulley drive module (19). A scraper (21) is provided at the output end of the module with the adjusting cylinder (20), and the scraper (21) corresponds to the positioning pressure frame (18).

2. The vacuum hole-plugging apparatus for copper-clad plate according to claim 1, wherein: The chassis (1) is fixedly connected to a PLC controller (22), and the switching cylinder module (6), lifting cylinder module (7), vacuum pump module (9), belt drive module (10), lifting cylinder module (14), gear drive module (15), pulley drive module (19) and adjustable cylinder module (20) are all electrically connected to the PLC controller (22).

3. The vacuum hole-plugging apparatus for copper-clad board according to claim 2, wherein: The vacuum chamber (2) is fixedly connected to a guide rail (23), and the displacement base plate (11) is slidably connected to the guide rail (23).

4. The vacuum hole-plugging apparatus for copper-clad board according to claim 3, wherein: The positioning pressure frame (18) is slidably connected to the lifting frame (17). The lifting frame (17) is movably hinged to the telescopic cylinder module (24) via a hinge shaft. The output end of the telescopic cylinder module (24) is movably hinged to the positioning pressure frame (18) via a hinge shaft. The telescopic cylinder module (24) is electrically connected to the PLC controller (22).

5. The vacuum hole-plugging apparatus for copper-clad board according to claim 4, wherein: Two sealing strips (25) are fixedly connected to the chassis (1), and the two sealing strips (25) are located at the front hatch (3) and the rear hatch (4) respectively, corresponding to the front hatch (5) and the rear hatch (8).

6. The vacuum hole-plugging apparatus for copper-clad board according to claim 5, wherein: A grating sensor (26) is fixedly connected to the chassis (1), and the grating sensor (26) corresponds to the front hatch (3).

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