Uniform liquid treatment device for printed circuit board

Abstract

The utility model discloses a printed circuit board liquid homogenizing treatment device, which belongs to the technical field of printed circuit board processing, and comprises a treatment table, two opposite sides of the upper end of the treatment table are respectively and fixedly connected with an electric slide rail machine, the two electric slide rail machines are symmetrically arranged, the moving ends of the two electric slide rail machines are fixedly connected with a recovery disc, and the recovery disc is fixedly connected with a motor. The upper ends of the two sides of the recovery disc are fixedly connected with a concave frame, one side of the concave frame is fixedly connected with an overturning mechanism, one end of the overturning mechanism is fixedly connected with a storage frame shell, the storage frame shell is provided with a clamping mechanism used for clamping a printed circuit board, one end of the upper side of the processing table is fixedly connected with a liquid homogenizing mechanism, and the other end of the upper side of the processing table is fixedly connected with a liquid outlet. And one end of the upper side of the treatment table is fixedly connected with a control panel. According to the utility model, the turnover mechanism is arranged to drive the circuit board on the storage frame shell to perform turnover operation, so that the two surfaces of the circuit board can be subjected to uniform liquid processing, the processing efficiency is improved, and the clamping mechanism is arranged to conveniently and quickly clamp the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board processing technology, specifically a printed circuit board homogenization treatment device. Background Technology

[0002] During the processing of printed circuit boards, liquid photoresist needs to be applied to the surface of the circuit area and spread evenly (i.e., homogenization). Printed circuit board homogenization equipment is an auxiliary device used for homogenization of printed circuit boards, and it is widely used in the field of mechanical equipment.

[0003] In a Chinese patent application for a liquid homogenization device for printed circuit boards (publication number: CN222235165U), the device includes a processing table and a liquid homogenization mechanism located on the processing table. A first motor is horizontally mounted on one side wall of the processing table, and a top sliding groove is formed on the processing table. The output shaft of the first motor is coaxially connected to a first screw, and a movable seat is threaded onto the first screw. The movable seat fits against the bottom wall of the top sliding groove, and the top of the movable seat extends out from the top sliding groove and is located above the processing table. An inverted U-shaped bracket is welded onto the movable seat, and a second motor is horizontally mounted on one side wall of the bracket. A movable groove is formed on the bottom wall of the bracket, and the output shaft of the second motor is coaxially connected to a second screw. The threads at both ends of the second screw turn in opposite directions. The printed circuit board is fixed by positioning seats on both sides before liquid homogenization, so that it remains stable during the liquid homogenization process, thereby ensuring the accuracy of the liquid homogenization position. However, this device does not have the function of flipping the printed circuit board, so it can only perform single-sided liquid homogenization, which affects the processing efficiency. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a printed circuit board homogenization processing device, comprising a processing table, electric slide rail machines fixedly connected to opposite sides of the upper end of the processing table, two electric slide rail machines symmetrically arranged, a collection tray fixedly connected to the moving end of the two electric slide rail machines, a concave frame fixedly connected to the upper ends of both sides of the collection tray, a flipping mechanism fixedly connected to one side of the concave frame, a storage frame fixedly connected to one end of the flipping mechanism, a clamping mechanism for clamping the printed circuit board provided on the storage frame, a homogenization mechanism fixedly connected to one upper end of the processing table, and a control panel fixedly connected to one upper end of the processing table, the control panel being electrically connected to the electric slide rail machines, the flipping mechanism, the clamping mechanism, and the homogenization mechanism respectively;

[0005] The flipping mechanism includes a cover fixed to one side of the concave frame. A stepper motor is fixedly connected to the rear side wall of the cover. The main shaft of the stepper motor passes through the cover and is fixedly connected to a worm gear. A rotating rod is inserted into and rotatably connected to the side wall of the concave frame. A worm wheel that meshes with the worm gear is fixedly connected to the rotating rod. One end of the rotating rod is fixedly connected to one side of the storage frame.

[0006] As a further embodiment of this utility model: the clamping mechanism includes a strip shell fixed to one side of the storage frame shell. A first telescopic cylinder is fixedly connected to one side of the strip shell. The driving end of the first telescopic cylinder passes through the strip shell and is fixedly connected to a first rack. A pivot pin is inserted into and rotatably connected to the side wall of the storage frame shell. A first gear that meshes with the first rack is fixedly connected to the outer end of the pivot pin. A second gear is fixedly connected to the inner end of the pivot pin. Two parallel second racks are provided on the inner wall of the storage frame shell. One second rack is above the second gear, and the other second rack is below the second gear. Both second racks mesh with the second gear. A connecting rod is fixedly connected to the same side of both second racks. One end of each connecting rod extends to the inner side of the storage frame shell and is fixedly connected to a clamping plate. The two clamping plates are arranged opposite to each other.

[0007] As a further improvement of this utility model: a limiting groove is provided on the inner wall of the side of the storage frame shell away from the strip shell, and the inner wall of the limiting groove is slidably connected to one end of the two clamping plates by two sliders respectively.

[0008] As a further embodiment of this utility model: two symmetrically arranged guide rods are fixedly connected to the inner walls of both ends of the storage frame shell, and cavities are opened in the side walls of the two second racks. The two guide rods pass through the corresponding cavities and are slidably connected to them.

[0009] As a further embodiment of this utility model: the liquid homogenizing mechanism includes a liquid storage tank fixed to the side wall of the processing table, a liquid supply pump connected to one side of the liquid storage tank, a second telescopic rod fixedly connected to the upper part of the front side wall of the liquid storage tank, a lifting frame fixedly connected to the lower end of the second telescopic rod, a liquid homogenizing spray pipe and a scraper plate fixedly connected to the lower side wall of the lifting frame, and the liquid supply pump connected to the liquid homogenizing spray pipe through a hose.

[0010] As a further embodiment of this utility model, the inner wall of the concave frame is rotatably connected to the side of the storage frame shell away from the clamping mechanism via a pivot.

[0011] As a further embodiment of this utility model, the inner wall of the cover is rotatably connected to one end of the rotating rod via a bearing seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up a flipping mechanism, starts the stepper motor to drive the worm gear to rotate. Since the worm gear meshes with the worm wheel, it drives the rotating rod to rotate, thereby driving the circuit board on the storage frame to flip, so as to perform uniform liquid processing on both sides of the circuit board, thereby improving processing efficiency.

[0014] 2. This utility model, by setting a clamping mechanism, places the printed circuit board between two clamping plates. When the first telescopic cylinder is activated to extend, it can push the first rack to move. Since the first rack meshes with the first gear, it drives the second gear fixed to the pivot pin to rotate. Since the second gear meshes with the two second racks, the two second racks move towards each other, thereby driving the two clamping plates to press against both sides of the circuit board to fix it. The clamping is stable and reliable, and the clamping efficiency is fast. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional enlarged structural diagram of the concave frame of this utility model;

[0017] Figure 3 This is a front cross-sectional view of the casing of this utility model.

[0018] Figure 4 This is a top view cross-sectional structural diagram of the storage frame shell of this utility model.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Processing table; 2. Electric slide rail machine; 3. Recycling tray; 4. Concave frame; 5. Storage frame shell; 6. Control panel; 7. Cover; 8. Stepper motor; 9. Worm gear; 10. Rotating rod; 11. Worm wheel; 12. Bar shell; 13. First telescopic cylinder; 14. First rack; 15. Rotating pin; 16. First gear; 17. Second gear; 18. Second rack; 19. Connecting rod; 20. Clamping plate; 21. Limiting groove; 22. Slider; 23. Guide rod; 24. Liquid storage tank; 25. Liquid supply pump; 26. Second telescopic rod; 27. Lifting frame; 28. Liquid spray nozzle; 29. ​​Scraper plate; 30. Rotating shaft. Detailed Implementation

[0021] Please see Figures 1-4This embodiment provides a liquid homogenization processing device for printed circuit boards, including a processing table 1. Two electric slide rail machines 2 are fixedly connected to opposite sides of the upper end of the processing table 1. The two electric slide rail machines 2 are symmetrically arranged. The electric slide rail machines 2 are existing technology and work synchronously. A collection tray 3 is fixedly connected to the moving end of the two electric slide rail machines 2. A concave frame 4 is fixedly connected to the upper ends of both sides of the collection tray 3. A flipping mechanism is fixedly connected to one side of the concave frame 4. A storage frame shell 5 is fixedly connected to one end of the flipping mechanism. A clamping mechanism for clamping printed circuit boards is provided on the storage frame shell 5. A liquid homogenization mechanism is fixedly connected to one upper end of the processing table 1. A control panel 6 is fixedly connected to one upper end of the processing table 1. The control panel 6 is electrically connected to the electric slide rail machines 2, the flipping mechanism, the clamping mechanism, and the liquid homogenization mechanism. This means that all electrical equipment of this device is electrically connected to the control panel 6. The circuit involved is existing technology and can be fully implemented by those skilled in the art, so there is no need to elaborate.

[0022] The flipping mechanism includes a cover 7 fixed to one side of the concave frame 4. A stepper motor 8 is fixedly connected to the rear side wall of the cover 7. The spindle end of the stepper motor 8 passes through the cover 7 and is fixedly connected to a worm gear 9. A rotating rod 10 is inserted into and rotatably connected to the side wall of the concave frame 4. A worm wheel 11 that meshes with the worm gear 9 is fixedly connected to the rotating rod 10. One end of the rotating rod 10 is fixedly connected to one side of the storage frame 5. When it is necessary to flip the circuit board to perform liquid homogenization on the other side, the stepper motor 8 is started to work, driving the worm gear 9 to rotate. Since the worm gear 9 meshes with the worm wheel 11, it drives the rotating rod 10 to rotate, thereby driving the circuit board on the storage frame 5 to perform liquid homogenization on both sides of the circuit board, thereby improving processing efficiency.

[0023] like Figure 2 and Figure 4As shown: The clamping mechanism includes a strip shell 12 fixed to one side of the storage frame shell 5. A first telescopic cylinder 13 is fixedly connected to one side of the strip shell 12. The driving end of the first telescopic cylinder 13 passes through the strip shell 12 and is fixedly connected to a first rack 14. A pivot pin 15 is inserted into and rotatably connected to the side wall of the storage frame shell 5. A first gear 16 that meshes with the first rack 14 is fixedly connected to the outer end of the pivot pin 15. A second gear 17 is fixedly connected to the inner end of the pivot pin 15. Two parallel second racks 18 are provided on the inner wall of the storage frame shell 5. One second rack 18 is above the second gear 17, and the other second rack 18 is below the second gear 17. Both second racks 18 mesh with the second gear 14. 7. Engaging connection: Connecting rods 19 are fixedly connected to the same side of the two second racks 18. One end of each connecting rod 19 extends to the inside of the storage frame 5 and is fixedly connected to a clamping plate 20. The two clamping plates 20 are arranged opposite to each other. When the printed circuit board is placed between the two clamping plates 20, the first telescopic cylinder 13 is activated to extend, which can push the first rack 14 to move. Since the first rack 14 engages with the first gear 16, it drives the second gear 17, which is fixed to the pivot pin 15, to rotate. Since the second gear 17 engages with the two second racks 18, the two second racks 18 move towards each other, thereby driving the two clamping plates 20 to press against both sides of the circuit board to fix it. The clamping is stable and reliable, and the clamping efficiency is fast.

[0024] like Figure 4 As shown: A limiting groove 21 is provided on the inner wall of the side of the storage frame shell 5 away from the strip shell 12. The inner wall of the limiting groove 21 is slidably connected to one end of the two clamping plates 20 by two sliders 22 respectively, so that the displacement of the clamping plates 20 is more stable.

[0025] like Figure 4 As shown: Two symmetrically arranged guide rods 23 are fixedly connected to the inner walls of both ends of the storage frame shell 5. Holes are opened in the side walls of the two second racks 18. The two guide rods 23 pass through the corresponding cavities and slide to them, so that the second racks 18 maintain linear displacement.

[0026] like Figure 1 and Figure 2As shown: The liquid homogenizing mechanism includes a liquid storage tank 24 fixed to the upper side wall of the processing table 1. A liquid supply pump 25 is connected to one side of the liquid storage tank 24. A second telescopic rod 26 is fixedly connected to the upper part of the front side wall of the liquid storage tank 24. A lifting frame 27 is fixedly connected to the lower end of the second telescopic rod 26. A liquid homogenizing nozzle 28 and a scraper plate 29 are fixedly connected to the lower side wall of the lifting frame 27. The liquid supply pump 25 is connected to the liquid homogenizing nozzle 28 through a hose. First, the second telescopic rod 26 is activated to extend, pushing the liquid homogenizing nozzle 28 on the lifting frame 27 down to a suitable height close to the printed circuit board. Then, the liquid supply pump 25 is activated to introduce the liquid in the liquid storage tank 24 into the liquid homogenizing nozzle 28 and spray it onto the circuit board. At the same time, two electric slide rail machines 2 work synchronously to drive the circuit board to move horizontally, so that the scraper plate 29 homogenizes the liquid on the circuit board. This is the prior art.

[0027] like Figure 2 As shown: The inner wall of the concave frame 4 is rotatably connected to the side of the storage frame 5 away from the clamping mechanism via the rotating shaft 30, making the rotation of the storage frame 5 more stable.

[0028] like Figure 3 As shown: The inner wall of the cover 7 is rotatably connected to one end of the rotating rod 10 through a bearing seat, making the rotation of the rotating rod 10 more stable.

[0029] Working principle: The printed circuit board is placed between two clamping plates 20. The first telescopic cylinder 13 is activated to extend, which pushes the first rack 14 to move. Since the first rack 14 meshes with the first gear 16, it drives the second gear 17, which is fixed to the pivot pin 15, to rotate. Since the second gear 17 meshes with the two second racks 18, the two second racks 18 move towards each other, which drives the two clamping plates 20 to press against both sides of the circuit board to fix it. The clamping is stable and reliable, and the clamping efficiency is fast. The second telescopic rod 26 is activated to extend, which pushes the liquid spraying pipe 28 on the lifting frame 27 to move down to a suitable height close to the printed circuit board. Then, the liquid supply pump 25 is activated to introduce the liquid in the storage tank 24 into the liquid spraying pipe 28 and spray it onto the circuit board. At the same time, the two electric slide rail machines 2 work synchronously to drive the circuit board to move horizontally, so that the scraper plate 29 performs liquid homogenization treatment on the circuit board.

[0030] When it is necessary to flip the circuit board to perform a liquid homogenization process on the other side, the stepper motor 8 is started to drive the worm gear 9 to rotate. Since the worm gear 9 meshes with the worm wheel 11, it drives the rotating rod 10 to rotate, thereby causing the circuit board on the storage frame 5 to be flipped so that the liquid homogenization process can be performed on both sides of the circuit board, thereby improving the processing efficiency.

[0031] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A printed circuit board homogenization treatment device, comprising a treatment table (1), characterized in that, Electric slide rail machines (2) are fixedly connected to the two opposite sides of the upper end of the processing table (1). The two electric slide rail machines (2) are symmetrically arranged. The moving ends of the two electric slide rail machines (2) are fixedly connected to the recycling tray (3). The upper ends of the two sides of the recycling tray (3) are fixedly connected to the concave frame (4). A flipping mechanism is fixedly connected to one side of the concave frame (4). A storage frame (5) is fixedly connected to one end of the flipping mechanism. A clamping mechanism for clamping printed circuit boards is provided on the storage frame (5). A liquid equalization mechanism is fixedly connected to one end of the upper side of the processing table (1). A control panel (6) is fixedly connected to one end of the upper side of the processing table (1). The control panel (6) is electrically connected to the electric slide rail machine (2), the flipping mechanism, the clamping mechanism and the liquid equalization mechanism respectively. The flipping mechanism includes a cover (7) fixed to one side of the concave frame (4). A stepper motor (8) is fixedly connected to the rear side wall of the cover (7). The main shaft of the stepper motor (8) passes through the cover (7) and is fixedly connected to a worm gear (9). A rotating rod (10) is inserted into and rotatably connected to the side wall of the concave frame (4). A worm wheel (11) that meshes with the worm gear (9) is fixedly connected to the rotating rod (10). One end of the rotating rod (10) is fixedly connected to one side of the storage frame (5).

2. The printed circuit board homogenization treatment device according to claim 1, characterized in that, The clamping mechanism includes a strip shell (12) fixed to one side of the storage frame (5). A first telescopic cylinder (13) is fixedly connected to one side of the strip shell (12). The driving end of the first telescopic cylinder (13) passes through the strip shell (12) and is fixedly connected to a first rack (14). A pivot pin (15) is inserted into and rotatably connected to the side wall of the storage frame (5). A first gear (16) that meshes with the first rack (14) is fixedly connected to the outer end of the pivot pin (15). A second gear (17) is fixedly connected to the inner end of the pivot pin (15). The inner wall of the frame shell (5) is provided with two parallel second racks (18), one of which is above the second gear (17) and the other is below the second gear (17). Both second racks (18) are meshed with the second gear (17). Both second racks (18) are fixedly connected to the same side of the two second racks (18). One end of each of the two connecting rods (19) extends to the inner side of the frame shell (5) and is fixedly connected to a clamp (20). The two clamps (20) are arranged opposite to each other.

3. The printed circuit board homogenization treatment device according to claim 2, characterized in that, The inner wall of the storage frame (5) away from the strip shell (12) has a limiting groove (21), and the inner wall of the limiting groove (21) is slidably connected to one end of the two clamps (20) by two sliders (22).

4. The printed circuit board homogenization treatment device according to claim 2, characterized in that, The inner walls of both ends of the storage frame (5) are fixedly connected to two symmetrically arranged guide rods (23). The side walls of the two second racks (18) are provided with cavities. The two guide rods (23) pass through the corresponding cavities and are slidably connected to them.

5. The printed circuit board homogenization treatment device according to claim 1, characterized in that, The liquid homogenizing mechanism includes a liquid storage tank (24) fixed on the upper side wall of the processing table (1). A liquid supply pump (25) is connected to one side of the liquid storage tank (24). A second telescopic rod (26) is fixedly connected to the upper part of the front side wall of the liquid storage tank (24). A lifting frame (27) is fixedly connected to the lower end of the second telescopic rod (26). A liquid homogenizing spray pipe (28) and a scraper plate (29) are fixedly connected to the lower side wall of the lifting frame (27). The liquid supply pump (25) is connected to the liquid homogenizing spray pipe (28) through a hose.

6. The printed circuit board homogenization treatment device according to claim 1, characterized in that, The inner wall of the concave frame (4) is rotatably connected to the side of the storage frame (5) away from the clamping mechanism via a pivot (30).

7. The printed circuit board homogenization treatment device according to claim 1, characterized in that, The inner wall of the cover (7) is rotatably connected to one end of the rotating rod (10) through a bearing seat.

Images