Board turnover device of PCB (Printed Circuit Board) solder mask grinding machine

Abstract

The board turnover device of the PCB resistance welding board grinding machine comprises a bottom board, the upper end of the bottom board is fixedly connected with a first shell, a turnover mechanism is arranged in the first shell, and the lower end of a second shell is fixedly connected with a box body. According to the board turnover device of the PCB resistance welding board grinding machine, through cooperation of the turnover mechanism and the first conveying belt, the output end of the second air cylinder retracts to drive the square block to move rightwards, turnover of a PCB is achieved, the PCB is turned over and machined through the turnover mechanism, manual turnover of workers is not needed, the physical strength of the workers is saved, then the manual labor force is reduced, and the production efficiency is improved. Through cooperation of the swing mechanism and the spray head, the output shaft of the motor rotates to drive the disc to rotate, so that dust falling during grinding machining is achieved, a large amount of dust cannot be blown out when a PCB is machined, the amount of dust sucked by workers is reduced, and then damage to the health of the workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, and in particular to a flipping device for a PCB solder resist grinding machine. Background Technology

[0002] PCB stands for Printed Circuit Board, also known as Printed Circuit Board. It is an important electronic component, serving as the support for electronic components and the carrier for the electrical interconnection of electronic components.

[0003] For example, a PCB grinding machine with announcement number "CN103786087A" can achieve good results in terms of uniform copper thickness, no exposed substrate, and no residual plugging resin, thus reducing the scrap rate. Furthermore, this PCB grinding machine has a simple structure and is easy to operate, making it particularly suitable for PCB prototype manufacturers. However, after processing one side, the machine requires manual flipping. Processing many PCBs a day consumes a significant amount of labor, increasing manual labor costs. Additionally, the grinding process generates considerable dust, which can be inhaled by workers and cause health problems. Utility Model Content

[0004] This utility model aims to solve the problems existing in the prior art by providing a PCB solder resist grinding machine flipping device. The flipping mechanism flips the PCB board, thereby reducing manual labor, and the swinging mechanism drives the nozzle to spray water on the PCB board to reduce dust.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This PCB solder resist grinding machine flipping device includes a base plate, a first outer shell is fixedly connected to the upper end of the base plate, a flipping mechanism is provided inside the first outer shell, a first conveyor belt is installed on the inner wall of the first outer shell, a waterproof box is fixedly connected to the middle of the inner wall of the first outer shell, a bending plate is fixedly connected to the right side of the base plate, a first cylinder is fixedly connected to the lower end of the bending plate, a connecting plate is fixedly connected to the output end of the first cylinder, a second outer shell is fixedly connected to both ends of the connecting plate, a swinging mechanism is provided inside the second outer shell, and a box body is fixedly connected to the lower end of the second outer shell.

[0006] The flipping mechanism includes a second cylinder, the output end of which is fixedly connected to a block. The outer wall of the block is rotatably connected to a first rotating rod via a bearing. The end of the first rotating rod is rotatably connected to a second rotating rod via a pin. A flap is fixedly connected to the left side of the outer wall of the first rotating rod. The lower end of the second rotating rod is rotatably connected to the first outer shell via a pin.

[0007] Further improvements include the following: water buckets are fixedly connected to both sides of the box, and the water outlet pipes of the water buckets are fixedly connected to nozzles; a second conveyor belt is installed on the inner wall of the box.

[0008] Further improvements include a fixed connection between the left side of the second cylinder and the inner wall of the waterproof box, and a sliding connection between the output end of the second cylinder and the waterproof box.

[0009] To further improve the design, the rotating shafts of the toothed pulleys of the second conveyor belt are all fixedly connected to grinding rollers, and the rotating shafts of the grinding rollers are all rotatably connected to the housing via bearings.

[0010] In a further improvement, the swing mechanism includes a motor, the output shaft of which is fixedly connected to a disc, the outer wall of which is fixedly connected to a cylinder, the outer wall of which is slidably connected to a sliding frame, a rack fixedly connected to the right side of the outer wall of the sliding frame, the rack meshing with a gear, the two ends of the gear being rotatably connected to a second housing via bearings, and swing rods fixedly connected to the rotation shafts of the gear, and the inner wall of the sliding frame being slidably connected to the second housing.

[0011] Further improvements include the fixed connection of nozzles to the lower ends of the swing rods, and the fixed connection of the outer wall of the motor to the second outer casing.

[0012] The beneficial effects of this utility model are as follows: Through the cooperation of the flipping mechanism and the first conveyor belt, the output end of the second cylinder retracts, causing the block to move to the right, which in turn causes the first rotating rod to move to the left. The leftward movement of the first rotating rod causes the second rotating rod to rotate to the left around the pivot pin. Simultaneously, the first rotating rod rotates to the right around the pivot pin. When the output end of the second cylinder retracts to its limit position, the first and second rotating rods are horizontal. The movement of the first rotating rod causes the flip plate to move, and the flip plate follows the first rotating rod to rotate to the right, thus moving the PCB board on the flip plate. After rotating 90 degrees with the flip plate, the PCB board contacts the first conveyor belt and is carried to the next grinding roller, achieving the flipping of the PCB board. The bucket flipping mechanism flips the PCB board for processing without requiring manual flipping by workers, saving their physical strength and reducing manual labor.

[0013] Through the coordination of the swing mechanism and the nozzle, the motor's output shaft rotates, driving the disc to rotate. The disc's rotation drives the cylinder to rotate, which in turn drives the sliding frame to move. Since the sliding frame has a groove, the cylinder's rotation only causes the sliding frame to move horizontally. The sliding frame is limited by the second outer shell, causing it to move horizontally. The sliding frame's leftward movement drives the rack to move left, which in turn drives the gear to rotate. The continuous rotation of the disc drives the cylinder to rotate, thus causing the sliding frame to reciprocate horizontally. This reciprocating motion of the sliding frame drives the rack to reciprocate, which in turn drives the gear to reciprocate. The gear rotates 180 degrees, causing the swing rods on both sides to rotate. The rotation of the swing rods drives the nozzle to move. The nozzle movement allows for a larger water coverage area, enabling dust to fall to the ground due to the water's influence, thereby reducing processing dust. This achieves dust reduction during grinding, preventing a large amount of dust from escaping during PCB board processing, thus reducing the amount of dust inhaled by workers and minimizing harm to their health. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A front sectional view;

[0016] Figure 3 for Figure 1 Top view of the first outer shell;

[0017] Figure 4 This is a right-side sectional view of the swing mechanism;

[0018] Figure 5 for Figure 2 Schematic diagram of part A in the middle;

[0019] Figure 6 for Figure 1 Top sectional view of the middle box.

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate, 2. First outer shell, 3. Waterproof box, 4. Tilting mechanism, 401. Second cylinder, 402. Block, 403. First rotating rod, 404. Flip plate, 405. Second rotating rod, 5. First conveyor belt, 6. Curved plate, 7. First cylinder, 8. Connecting plate, 9. Swinging mechanism, 901. Motor, 902. Disc, 903. Cylinder, 904. Sliding frame, 905. Rack, 906. Gear, 907. Swinging rod, 10. Second outer shell, 11. Box body, 12. Nozzle, 13. Grinding roller, 14. Water bucket, 15. Second conveyor belt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] See attached document Figure 1-6 :

[0023] In this embodiment, a PCB solder resist grinding machine flipping device includes a base plate 1. A first outer shell 2 is fixedly connected to the upper end of the base plate 1. A sliding door is installed on the outer wall of the first outer shell 2. A flipping mechanism 4 is provided inside the first outer shell 2. A first conveyor belt 5 is installed on the inner wall of the first outer shell 2. Both the first conveyor belt 5 and the second conveyor belt 15 are composed of a motor, a driving toothed pulley, a driven toothed pulley, and a toothed belt. A waterproof box 3 is fixedly connected to the middle of the inner wall of the first outer shell 2. Multiple heat dissipation holes are machined at the bottom of the waterproof box 3. A second cylinder 401 is inside the water box 3. The waterproof box 3 can ensure that the second cylinder 401 does not enter water. A bending plate 6 is fixedly connected to the right side of the base plate 1. A first cylinder 7 is fixedly connected to the lower end of the bending plate 6. A connecting plate 8 is fixedly connected to the output end of the first cylinder 7. A second outer shell 10 is fixedly connected to both ends of the connecting plate 8. The interior of the second outer shell 10 is equipped with a swing mechanism 9. The lower end of the second outer shell 10 is fixedly connected to a box 11. Water buckets 14 are fixedly connected to both sides of the box 11. The output end of the first cylinder 7 extends and retracts, causing the connecting plate 8 to move, thereby causing the second outer shell 10 to move. The movement of the second outer shell 10 causes the swing mechanism 9 to move and the water tank 11 to move, thereby causing the water buckets 14 to move. The water outlet pipes of the water buckets 14 are fixedly connected to the nozzles 12. A water pump is installed inside the water buckets 14 to pressurize the water and deliver it to the nozzles 12 through the water pipes. The water pipes are corrugated pipes to supply water to the nozzles 12. A second conveyor belt 15 is installed on the inner wall of the box 11. The rotating shafts of the toothed pulleys of the second conveyor belt 15 are fixedly connected to the grinding rollers 13. The movement of the two second conveyor belts 15 can drive the three grinding rollers 13 to rotate synchronously. The rotating shafts of the grinding rollers 13 are rotatably connected to the box 11 through bearings.

[0024] See attached document Figure 1-3 :

[0025] The flipping mechanism 4 includes a second cylinder 401. A block 402 is fixedly connected to the output end of the second cylinder 401. The extension and retraction of the output end of the first cylinder 401 drives the block 402 to move. The outer wall of the block 402 is rotatably connected to the first rotating rod 403 through a bearing. The movement of the block 402 drives the first rotating rod 403 to move. The end of the first rotating rod 403 is rotatably connected to the second rotating rod 405 through a pin. The movement of the first rotating rod 403 drives the second rotating rod 405 to move. A flap 404 is fixedly connected to the left side of the outer wall of the first rotating rod 403. The movement of the first rotating rod 403 drives the flap 404 to move. The lower end of the second rotating rod 405 is rotatably connected to the first outer shell 2 through a pin. The second rotating rod 405 rotates with the lower pin as the rotation center. The left side of the second cylinder 401 is fixedly connected to the inner wall of the waterproof box 3. The waterproof box 3 prevents water from entering the second cylinder 401. The output end of the second cylinder 401 is slidably connected to the waterproof box 3.

[0026] See attached document Figure 1-5:

[0027] The swing mechanism 9 includes a motor 901. A disk 902 is fixedly connected to the output shaft of the motor 901. Rotation of the motor 901's output shaft drives the disk 902 to rotate. A cylinder 903 is fixedly connected to the outer wall of the disk 902. Rotation of the disk 902 drives the cylinder 903 to rotate. The outer wall of the cylinder 903 is slidably connected to a sliding frame 904. The cylinder 903 moves along the inner wall of the slider 904, thereby driving the sliding frame 904 to move. A rack 905 is fixedly connected to the right side of the outer wall of the sliding frame 904. Movement of the sliding frame 904 drives the rack 905 to move. The rack 905 meshes with a gear 906. The rack 905 moves, driving the gear 906 to rotate. The two ends of the gear 906 are rotatably connected to the second housing 10 through bearings. The rotating shafts of the gear 906 are fixedly connected to the swing rods 907. The rotation of the gear 906 drives the swing rods 97 to rotate. The inner wall of the slide frame 904 is slidably connected to the second housing 10. The straight rod on the inner wall of the second housing 10 limits the slide frame 904, allowing the slide frame 904 to move horizontally. The lower end of the swing rods 907 is fixedly connected to the nozzles 12. The rotation of the swing rods 907 drives the nozzles 12 to move. The outer wall of the motor 901 is fixedly connected to the second housing 10.

[0028] Working principle:

[0029] When processing PCB boards, the boards are flipped over during the sanding process.

[0030] Preparation process:

[0031] Start the first cylinder 7 (e.g.) Figure 2 The output end of the first cylinder 7 extends and drives the connecting plate 8 to move downward. The downward movement of the connecting plate 8 drives the second outer shell 10 to move downward, thereby driving the swing mechanism 9 to move downward. The downward movement of the second outer shell 10 drives the box 11 and the water bucket 14 to move downward, which in turn drives the second conveyor belt 15 and the grinding roller 13 to move downward. When the grinding roller 13 moves downward to the height required for grinding, the first cylinder 7 is stopped, so that the grinding roller 13 stops at that position. Then the worker fills the water bucket 14 with water.

[0032] Polishing process:

[0033] The workers placed the PCB board onto the first conveyor belt 5 (e.g.) Figure 1The upper end of the first outer casing 2 is higher than the first conveyor belt 5, which can limit the movement of the PCB board, allowing it to move horizontally. When the first conveyor belt 5 and the second conveyor belt 15 are started, the PCB board is driven by the first conveyor belt 5 into the area below the grinding roller 13. The first conveyor belt 5 has multiple protrusions to ensure the conveying of the PCB board. When the grinding roller 13 grinds the PCB board, it moves the PCB board towards the protrusions on the first conveyor belt 5. All the protrusions on the first conveyor belt 5 prevent the PCB board from slipping during grinding. The start of the second conveyor belt 15 drives the grinding roller 13 to rotate, thereby grinding the PCB board. Simultaneously, the motor 901 (e.g., ...) is started. Figure 4 The output shaft of motor 901 rotates, driving disc 902 to rotate. Disc 902 rotates, driving cylinder 903 to rotate. Cylinder 903 rotates, driving slide frame 904 to move. Slide frame 904 has a groove, so the rotation of cylinder 903 can only drive slide frame 904 to move horizontally. Slide frame 904 is limited to horizontal movement by the second outer shell 10. Slide frame 904 moves to the left, driving rack 905 to move to the left. The maximum distance that rack 905 moves to the left can drive gear 906 to rotate 160 degrees. Disc 902 rotates continuously, driving cylinder 903 to rotate continuously, thus driving slide frame 904 to reciprocate horizontally. The reciprocating motion of slide frame 904 drives rack 905 to reciprocate, which in turn drives gear 906 to rotate reciprocally. Gear 906 rotates 180 degrees, driving the two swing rods 907 to rotate (e.g., Figure 5 The rotation of the swing arm 907 drives the nozzle 12 to move, activating the water pump inside the water tank 14. This pump delivers water to the nozzle 12 through a hose, allowing the nozzle 12 to cover a larger area. This allows dust to fall to the ground due to the water's influence, reducing processing dust. The sprayed water falls into the first housing 2 and flows along the slope of its inner wall through the outlet pipe, exiting the first housing 2 (e.g., ...). Figure 2 );

[0034] When the PCB board moves to flip board 404 (e.g.) Figure 1 ), start the second cylinder 401 (e.g. Figure 2This causes the output end of the second cylinder 401 to retract, moving the block 402 to the right, which in turn moves the first rotating rod 403 to the left. The leftward movement of the first rotating rod 403 causes the second rotating rod 405 to rotate to the left around the pivot pin. Simultaneously, the first rotating rod 403 rotates to the right around the pivot pin. When the output end of the second cylinder 401 retracts to its limit position, the first rotating rod 403 and the second rotating rod 405 are horizontal. The movement of the first rotating rod 403 causes the flap 404 to move, following the movement of the first rotating rod 403. Rotating to the right will cause the PCB board on the flip plate 404 to move. After the PCB board rotates 90 degrees with the flip plate 404, it will come into contact with the first conveyor belt 5 and be carried by the first conveyor belt 5 to the next grinding roller 13, thus realizing the flipping of the PCB board. The grinding roller 13 on the right can grind the other side of the PCB board. After grinding, the workers can collect the ground PCB board. After flipping, the second cylinder 401 is reset to facilitate the next processing. If processing needs to continue, the above operation can be repeated. After all is completed, all power is turned off.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A flipping device for a PCB solder resist grinding machine, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a first outer shell (2), the interior of the first outer shell (2) is provided with a flipping mechanism (4), the inner wall of the first outer shell (2) is installed with a first conveyor belt (5), the middle of the inner wall of the first outer shell (2) is fixedly connected to a waterproof box (3), the right side of the base plate (1) is fixedly connected to a bending plate (6), the lower end of the bending plate (6) is fixedly connected to a first cylinder (7), the output end of the first cylinder (7) is fixedly connected to a connecting plate (8), both ends of the connecting plate (8) are fixedly connected to a second outer shell (10), the interior of the second outer shell (10) is provided with a swing mechanism (9), the lower end of the second outer shell (10) is fixedly connected to a box body (11); The flipping mechanism (4) includes a second cylinder (401), the output end of which is fixedly connected to a block (402). The outer wall of the block (402) is rotatably connected to a first rotating rod (403) via a bearing. The end of the first rotating rod (403) is rotatably connected to a second rotating rod (405) via a pin. A flap (404) is fixedly connected to the left side of the outer wall of the first rotating rod (403). The lower end of the second rotating rod (405) is rotatably connected to the first outer shell (2) via a pin.

2. The PCB solder resist grinding machine flipping device according to claim 1, characterized in that: Water buckets (14) are fixedly connected to both sides of the box (11), and the water outlet pipes of the water buckets (14) are fixedly connected to nozzles (12). A second conveyor belt (15) is installed on the inner wall of the box (11).

3. The PCB solder resist grinding machine flipping device according to claim 1, characterized in that: The left side of the second cylinder (401) is fixedly connected to the inner wall of the waterproof box (3), and the output end of the second cylinder (401) is slidably connected to the waterproof box (3).

4. The PCB solder resist grinding machine flipping device according to claim 2, characterized in that: The rotating shafts of the toothed pulleys of the second conveyor belt (15) are all fixedly connected to the grinding rollers (13), and the rotating shafts of the grinding rollers (13) are rotatably connected to the housing (11) through bearings.

5. The PCB solder resist grinding machine flipping device according to claim 1, characterized in that: The swing mechanism (9) includes a motor (901), the output shaft of the motor (901) is fixedly connected to a disk (902), the outer wall of the disk (902) is fixedly connected to a cylinder (903), the outer wall of the cylinder (903) is slidably connected to a sliding frame (904), the right side of the outer wall of the sliding frame (904) is fixedly connected to a rack (905), the rack (905) meshes with a gear (906), the two ends of the gear (906) are rotatably connected to the second outer shell (10) through bearings, the rotating shafts of the gear (906) are all fixedly connected to a swing rod (907), and the inner wall of the sliding frame (904) is slidably connected to the second outer shell (10).

6. The PCB solder resist grinding machine flipping device according to claim 5, characterized in that: The lower end of each swing rod (907) is fixedly connected to a nozzle (12), and the outer wall of the motor (901) is fixedly connected to the second outer shell (10).

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