A PCB plate production grinding device

Abstract

The utility model relates to the technical field of plate grinding machine, concretely to a kind of plate grinding device for PCB production, including plate grinding machine main body, belt conveyor, anti-warping assembly and grinding assembly, plate grinding machine main body is equipped with feed inlet and discharge port, belt conveyor is connected on plate grinding machine main body, anti-warping assembly is connected on plate grinding machine main body, anti-warping assembly includes mounting plate, buffer bracket, counterweight and limit wheel, grinding assembly is connected on wear plate main body, grinding assembly is in the downstream of anti-warping assembly.The utility model is contacted with anti-warping assembly before PCB board enters brush roller and carries out plate grinding work, and the weight brought by counterweight drives the deformation of parallelogram-shaped buffer bracket, so that the limit wheel at the bottom of buffer bracket is pressed down, so that it can temporarily recover flat and enter between brush roller, prevent brush roller polishing and make PCB board bend and cause surface damage.

Description

Technical Field

[0001] This utility model relates to the field of grinding machines, specifically to a grinding device for PCB board production. Background Technology

[0002] PCBs (Printed Circuit Boards) provide the electrical connections for electronic components. The PCB manufacturing process involves many steps, among which the grinding process is crucial. This involves feeding the semi-finished PCB into a grinding machine for grinding. The purpose of grinding is to physically remove the oxide layer from the copper foil surface, resulting in a microscopically rough surface.

[0003] Chinese Patent No. CN222404756U discloses a PCB board grinding machine, including a grinding machine body. Adjustment grooves are formed on the front and back of the grinding machine body. An adjustment rod is fixedly connected to the inner side of the adjustment groove. A weight sensor is fixedly connected to the bottom end of the adjustment rod. A lifting plate is fixedly connected to the bottom end of the weight sensor. A grinding motor is fixedly connected to the front of the lifting plate. A grinding assembly is fixedly connected to the drive end of the grinding motor. A control panel is fixedly connected to the front of the grinding machine body. Conveyor frames are fixedly connected to both sides of the grinding machine body. A conveying mechanism is fixedly connected to the front of the conveyor frames. A telescopic rod is fixedly connected inside the grinding machine body. A mounting bracket is fixedly connected to one end of the telescopic rod. A limit bracket is fixedly connected to the bottom of the mounting bracket. Through the adjustment rod, weight sensor, and lifting plate, the grinding effect is improved, allowing the grinding machine to automatically adjust the grinding pressure according to the thickness of the PCB board, avoiding grinding defects in the PCB board.

[0004] However, the above technical solution only improves the grinding effect by setting the adjustment rod, weight sensor and lifting plate, so that the grinding machine can automatically adjust the grinding pressure according to the thickness of the PCB board and avoid the grinding difference of the PCB board. However, in some cases, the PCB board itself will be bent. When the PCB board is bent and contacts the brush roller for grinding, it will cause damage to other parts and affect the quality of the PCB board. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a grinding plate device for PCB board production.

[0006] The technical solution of this utility model is as follows: A grinding device for PCB board production includes a grinding machine body with an inlet and an outlet, and a belt conveyor connected to the grinding machine body; an anti-warping component connected to the grinding machine body, which includes a mounting plate, a buffer frame, a counterweight, and limit wheels. The mounting plate is connected to the wear-resistant plate body, and two parallel parallelogram-shaped buffer frames are connected to the mounting plate. Each buffer frame is connected to a counterweight, and multiple parallel limit wheels are connected to the end of the buffer frame away from the mounting plate; when the anti-warping component is in use, the shape of the PCB board pushes the buffer frame to deform, and the counterweight applies pressure to make the limit wheels squeeze the PCB board to restore it to a flat state; a grinding component connected to the wear-resistant plate body is located downstream of the anti-warping component.

[0007] Preferably, the anti-warping assembly further includes an adjustment assembly connected to the mounting plate. The adjustment assembly includes a threaded rod, an adjustment handle, a sliding seat, a guide rod, and a guide seat. The threaded rod and the guide rod are respectively connected to symmetrically arranged sliding seats and guide seats. The sliding seats and guide seats are connected to the buffer. The mounting plate has an adjustment groove for accommodating the threaded rod and the guide rod. One end of the threaded rod is rotatably connected to the adjustment groove, and the other end of the threaded rod passes through the adjustment groove and is connected to the adjustment handle.

[0008] Preferably, the buffer frame consists of a fixed plate, a rotating plate, and a connecting plate. The fixed plate is connected to a sliding seat and a guide seat at both ends. One end of two parallel rotating plates is rotatably connected to the fixed plate, and both ends of the connecting plate are rotatably connected to the other end of the rotating plates. Each rotating plate is connected to a support shaft, which is rotatably connected to a counterweight.

[0009] Preferably, the counterweight consists of a counterweight box and counterweight blocks. The counterweight box is rotatably connected to two parallel support shafts, and multiple counterweight blocks are slidably connected inside the counterweight box.

[0010] Preferably, the grinding assembly includes a first telescopic device, two of which are symmetrically arranged. The first telescopic device is connected to the main body of the grinding machine, and each telescopic end of the first telescopic device is connected to a connecting block; a brush roller, which is detachably connected to the connecting block; and a drive device, which is connected to any one of the connecting blocks. The output end of the drive device is connected to an output shaft, and one end of the output shaft is connected to the brush roller.

[0011] Preferably, observation windows are provided on both sides of the grinding machine body.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: In this invention, before the PCB board enters the brush roller for grinding, it will come into contact with the anti-warping component. The weight brought by the counterweight will cause the parallelogram-shaped buffer frame to deform, causing the limiting wheel at the bottom of the buffer frame to press down, so that it can temporarily restore its flatness and enter between the brush rollers, preventing the brush roller from grinding and causing the PCB board to bend and damage its surface. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 for Figure 1 A cross-sectional view; Figure 3 A schematic diagram of the anti-warping component structure; Figure 4 for Figure 3 Enlarged view of the structure at point A.

[0014] Reference numerals in the attached drawings: 1. Grinding machine body; 2. Belt conveyor; 3. Mounting plate; 4. Buffer frame; 5. Counterweight; 6. Limit wheel; 7. Threaded rod; 8. Adjusting handle; 9. Sliding seat; 10. Guide rod; 11. Guide seat; 12. Fixed plate; 13. Rotating plate; 14. Connecting plate; 15. Counterweight box; 16. Counterweight block; 17. First telescopic device; 18. Connecting block; 19. Brush roller; 20. Drive device; 21. Observation window. Detailed Implementation

[0015] Example 1 like Figures 1-4 As shown, this utility model proposes a PCB board grinding device, including a grinding machine body 1, a belt conveyor 2, an anti-warping component, and a grinding component. The grinding machine body 1 has an inlet and an outlet, and the belt conveyor 2 is connected to the grinding machine body 1. The anti-warping component is connected to the grinding machine body 1 and includes a mounting plate 3, a buffer frame 4, a counterweight 5, and a limiting wheel 6. The mounting plate 3 is connected to the wear-resistant plate body, and two parallel parallelogram-shaped buffer frames 4 are connected to the mounting plate 3. Each buffer frame 4 is connected to a counterweight 5, and multiple parallel limiting wheels 6 are connected to the end of the buffer frame away from the mounting plate 3. When the anti-warping component is in use, the shape of the PCB board pushes the buffer frame 4 to deform, and the counterweight 5 applies pressure to make the limiting wheels 6 squeeze the PCB board to restore it to a flat state. The grinding component is connected to the wear-resistant plate body and is located downstream of the anti-warping component.

[0016] Example 2 like Figures 2-4As shown, the present invention proposes a grinding device for PCB board production. Compared with Embodiment 1, this embodiment describes the detailed structure of the anti-warping component. The anti-warping component also includes an adjustment component, which is connected to the mounting plate 3. The adjustment component includes a threaded rod 7, an adjustment handle 8, a sliding seat 9, a guide rod 10, and a guide seat 11. The threaded rod 7 and the guide rod 10 are respectively connected to the symmetrically arranged sliding seat 9 and guide seat 11. The sliding seat 9 and the guide seat 11 are connected to the buffer. The mounting plate 3 has an adjustment groove for accommodating the threaded rod 7 and the guide rod 10. One end of the threaded rod 7 is rotatably connected to the adjustment groove, and the other end of the threaded rod 7 passes through the adjustment groove and is connected to the adjustment handle 8.

[0017] In an optional embodiment, the buffer frame 4 is composed of a fixed plate 12, a rotating plate 13 and a connecting plate 14. The two ends of the fixed plate 12 are connected to the sliding seat 9 and the guide seat 11. One end of the two parallel rotating plates 13 is rotatably connected to the fixed plate 12, and the two ends of the connecting plate 14 are rotatably connected to the other end of the rotating plates 13. Each rotating plate 13 is connected to a support shaft, and the support shaft is rotatably connected to the counterweight 5.

[0018] In an optional embodiment, the counterweight 5 consists of a counterweight box 15 and counterweight blocks 16. The counterweight box 15 is rotatably connected to two parallel support shafts, and a plurality of counterweight blocks 16 are slidably connected inside the counterweight box 15. The counterweight blocks 16 may be, but are not limited to, metal blocks.

[0019] Example 3 like Figure 2 As shown, this utility model proposes a grinding device for PCB board production. Compared with Embodiment 2, this embodiment describes the detailed structure of the grinding assembly. The grinding assembly includes a first telescopic device 17, a connecting block 18, a brush roller 19, and a driving device 20. Two first telescopic devices 17 are symmetrically arranged. The first telescopic devices 17 are connected to the main body 1 of the grinding machine. The telescopic ends of the first telescopic devices 17 are connected to the connecting blocks 18. The first telescopic devices 17 are selected from, but are not limited to, hydraulic cylinders. The brush roller 19 is detachably connected to the connecting block 18. The driving device 20 is connected to any one of the connecting blocks 18. The output end of the driving device 20 is connected to an output shaft, and one end of the output shaft is connected to the brush roller 19. The driving device 20 is selected from motors.

[0020] In an optional embodiment, observation windows 21 are provided on both sides of the grinding machine body 1; the observation windows 21 can better observe the operating status of the buffer frame 4 and facilitate adjustment.

[0021] In summary, when this utility model is used, the PCB board enters the belt conveyor 2 and then enters the grinding machine body 1. It will first contact the limiting wheel 6. When it deforms into an arc shape, its shape will lift the limiting wheel 6. The counterweight 5 on the buffer frame 4 presses down by its own weight. The two rotating plates 13 will rotate to drive the connecting plate 14 to swing. The limiting wheel 6 applies force to the PCB board, making it horizontal and preventing it from bending and contacting the brush roller 19. After the drive device 20 is started, it will make the brush roller 19 rotate to perform grinding, reducing impurities on the PCB board. The first telescopic device 17 can drive the connecting block 18 and the brush roller 19 to move up and down.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A grinding device for PCB board production, characterized in that, include The main body of the grinding mill (1) has a feed inlet and a discharge outlet, and a belt conveyor (2) is connected to the main body of the grinding mill (1). The anti-warping assembly is connected to the main body (1) of the grinding machine. The anti-warping assembly includes a mounting plate (3), a buffer frame (4), a counterweight (5), and a limiting wheel (6). The mounting plate (3) is connected to the wear-resistant plate body. Two parallel quadrilateral buffer frames (4) are connected to the mounting plate (3). The buffer frames (4) are connected to the counterweight (5). The end of the buffer away from the mounting plate (3) is connected to multiple parallel limiting wheels (6). When the anti-warping assembly is in use, the shape of the PCB board pushes the buffer frame (4) to deform. The counterweight (5) applies pressure to make the limiting wheel (6) squeeze the PCB board to restore it to a flat state. The grinding assembly is connected to the wear-resistant plate body and is located downstream of the anti-warping assembly.

2. The PCB plate grinding device according to claim 1, characterized in that, Anti-warping components also include An adjustment assembly is connected to the mounting plate (3). The adjustment assembly includes a threaded rod (7), an adjustment handle (8), a sliding seat (9), a guide rod (10), and a guide seat (11). The threaded rod (7) and the guide rod (10) are respectively connected to the symmetrically arranged sliding seat (9) and guide seat (11). The sliding seat (9) and the guide seat (11) are connected to the buffer. The mounting plate (3) has an adjustment groove for accommodating the threaded rod (7) and the guide rod (10). One end of the threaded rod (7) is rotatably connected to the adjustment groove, and the other end of the threaded rod (7) passes through the adjustment groove and is connected to the adjustment handle (8).

3. The grinding device for PCB board production according to claim 1, characterized in that, The buffer frame (4) consists of a fixed plate (12), a rotating plate (13) and a connecting plate (14). The fixed plate (12) is connected to the sliding seat (9) and the guide seat (11) at both ends. The two parallel rotating plates (13) are rotatably connected to the fixed plate (12) at one end. The connecting plate (14) is rotatably connected to the other end of the rotating plate (13) at both ends. Each rotating plate (13) is connected to a support shaft, which is rotatably connected to the counterweight (5).

4. The grinding device for PCB board production according to claim 1, characterized in that, The counterweight (5) consists of a counterweight box (15) and counterweight blocks (16). The counterweight box (15) is rotatably connected to two parallel support shafts, and multiple counterweight blocks (16) are slidably connected inside the counterweight box (15).

5. A grinding device for PCB board production according to claim 1, characterized in that, The grinding components include The first telescopic device (17) has two symmetrical arrangements. The first telescopic device (17) is connected to the main body (1) of the grinding machine. The telescopic ends of the first telescopic device (17) are connected to connecting blocks (18). The brush roller (19) is detachably connected to the connecting block (18); The drive unit (20) is connected to any one of the connecting blocks (18). The output end of the drive unit (20) is connected to an output shaft, and one end of the output shaft is connected to the brush roller (19).

6. The grinding device for PCB board production according to claim 1, characterized in that, The main body of the grinding machine (1) has observation windows (21) on both sides.

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