Circuit board developing device

Abstract

The utility model relates to the technical field of developing devices, and discloses a circuit board developing device, which solves the problems that a filter plate in the existing circuit board developing device is easy to block and is inconvenient to clean, and comprises a shell, a circuit board conveying belt and a plurality of developing nozzles which are inserted into the shell in a penetrating manner are arranged at the top end in the shell, an isolation frame is fixedly arranged in the shell, a discharging cavity, a plurality of filtering cavities and a material collecting cavity are formed between the isolation frame and the shell, and a filtering mechanism is arranged in the isolation frame; a plurality of first discharging through holes are formed in the position, close to the filtering cavity, of the isolation frame. The bottom of one end of the shell is provided with a liquid return pump which communicates with the material collecting cavity and is fixedly connected with the developing spray head. By means of the circuit board developing device, recycling of developing liquid medicine can be achieved, blocking of the filtering mechanism is avoided, and meanwhile the filtering mechanism can be detached and cleaned conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of developing devices, in particular to a circuit board developing device. Background Art

[0002] When factories develop circuit boards in large quantities, the developing solution is mostly reused. However, it is difficult for existing circuit board developing devices to filter the reused developing solution, which affects the developing quality and the service life of the developing solution.

[0003] A circuit board developing device disclosed in the authorization announcement number CN213750657U is provided, by setting a baffle, a filter plate, a recovery box and a second water pump to cooperate with each other, the excess developing solution flows through the baffle and falls into the recovery box, and is filtered by the filter plate. At this time, the second water pump works to suck the filtered developing solution through the second suction pipe, and then sends it into the interior of the liquid tank through the second water outlet pipe; the device only realizes the filtering operation through the filter plate, it is not convenient to clean the impurities filtered on the surface of the filter plate, it is easy to cause the filter plate to be blocked, and when cleaning the filter plate, it is necessary to stop the supply of developing solution, affecting production efficiency. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a circuit board developing device, which effectively solves the problem that the filter plate in the existing circuit board developing device is prone to clogging and it is inconvenient to clean the filter plate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board developing device, comprising a shell, a circuit board conveyor belt and a plurality of developing nozzles inserted in the shell are arranged at the top of the shell, an isolation frame is fixedly arranged inside the shell, a feed chamber, a plurality of filter chambers and a collection chamber are formed between the isolation frame and the shell, a filtering mechanism is arranged inside the isolation frame, a plurality of feed holes are opened at the position of the isolation frame near the filter chamber, and a return pump connected with the collection chamber and fixedly connected with the developing nozzle is arranged at the bottom of one end of the shell.

[0006] Preferably, the filtering mechanism is composed of a pressure pump, a liquid suction pipe, a first filter assembly and a second filter assembly. The pressure pump is fixedly connected to the middle position inside the isolation frame. The pressure pump is connected to the feed chamber through the liquid suction pipe. The first filter assembly and the second filter assembly are respectively located inside the two filter chambers and are connected to the liquid outlet of the pressure pump through a connecting pipe sleeve.

[0007] Preferably, the first filter assembly and the second filter assembly are both composed of a tank body, a filter cartridge, a liquid inlet pipe, a scraper assembly, a plurality of legs, an inner cover plate, an outer cover plate and a rubber sealing pad. The filter cartridge is located inside the tank body, the liquid inlet pipe is inserted into the tank body and the filter cartridge, the scraper assembly is connected to the inside of the filter cartridge, the inner cover plate is connected to the top end of the filter cartridge, the outer cover plate is threadedly connected to the top end of the tank body, the rubber sealing pad is fixedly connected to the bottom end of the outer cover plate and is press-fitted with the inner cover plate, and a valve is provided on the liquid inlet pipe.

[0008] Preferably, a plurality of material discharge through holes 2 are provided at the bottom end of the side of the tank body, an arc-shaped groove is provided on the inner cover plate, and a plurality of push-pull handles matching the scraper assembly are provided on the top of the arc-shaped groove.

[0009] Preferably, the scraper assembly consists of a center column, a fixed partition and a plurality of movable partitions, the center column is fixedly connected to the middle position inside the filter cylinder, the fixed partition is fixedly connected to the side of the center column, the movable partition is sleeved on the center column and rotatably connected thereto, and the top end of the movable partition is fixedly connected to the push-pull handle.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) During operation, by providing a material discharge chamber, a filter chamber, a material collection chamber, a filter mechanism and a liquid return pump, the developer solution can be recycled and filtered, thereby improving the cleanliness and service life of the developer solution;

[0012] (2) By setting up a filtering mechanism consisting of a pressure pump, a suction pipe, a first filter assembly and a second filter assembly, the developer solution can be filtered alternately through the first filter assembly and the second filter assembly. Therefore, when cleaning the first filter assembly and the second filter assembly, there is no need to stop the operation to avoid affecting the work efficiency. By setting up a first filter assembly and a second filter assembly consisting of a tank body, a filter cylinder, a liquid inlet pipe, a scraper assembly, a plurality of legs, an inner cover plate, an outer cover plate and a rubber sealing pad, the developer solution can be pressurized to achieve sufficient filtration. By setting up a scraper assembly consisting of a central column, a fixed partition plate and a plurality of movable partition plates, the inner surface of the filter cylinder can be scraped regularly to avoid clogging of the filter cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of the circuit board developing device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second filter assembly of the utility model;

[0018] Figure 4 This is a top view of the inner cover plate of the utility model;

[0019] Figure 5 This is one of the schematic diagrams of the connection structure between the scraper assembly and the filter cartridge of the utility model;

[0020] Figure 6 This is the second schematic diagram of the connection structure between the scraper assembly and the filter cartridge of the utility model;

[0021] In the figure: 1. Shell; 2. Circuit board conveyor belt; 3. Developing nozzle; 4. Isolation frame; 5. Feeding chamber; 6. Filter chamber; 7. Collecting chamber; 8. Filter mechanism; 9. Feeding hole 1; 10. Liquid return pump; 11. Pressure pump; 12. Liquid extraction pipe; 13. First filter assembly; 14. Second filter assembly; 15. Connecting sleeve; 16. Tank; 17. Filter cartridge; 18. Liquid inlet pipe; 19. Scraper assembly; 20. Support leg; 21. Inner cover plate; 22. Outer cover plate; 23. Rubber sealing pad; 24. Feeding hole 2; 25. Arc groove; 26. Push-pull handle; 27. Center column; 28. Fixed partition; 29. ​​Movable partition. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Depend on Figure 1 The utility model provides a circuit board developing device, comprising a shell 1, a circuit board conveyor belt 2 and a plurality of developing nozzles 3 inserted in the shell 1 are arranged at the top of the shell 1, an isolation frame 4 is fixedly arranged inside the shell 1, a material discharge chamber 5, a plurality of filter chambers 6 and a material collection chamber 7 are formed between the isolation frame 4 and the shell 1, a filtering mechanism 8 is arranged inside the isolation frame 4, a plurality of material discharge through holes 9 are opened at the position of the isolation frame 4 near the filter chamber 6, and a liquid return pump 10 connected with the material collection chamber 7 and fixedly connected with the developing nozzle 3 is arranged at the bottom of one end of the shell 1;

[0024] When in use, the liquid return pump 10 extracts the developing solution in the collecting chamber 7 and sprays it to the circuit board through the developing nozzle 3 to realize the developing operation of the circuit board. The used developing solution enters the inside of the unloading chamber 5, and then enters the inside of the filtering mechanism 8 to be fully filtered. The filtered developing solution enters the inside of the collecting chamber 7 again, thereby realizing recycling.

[0025] Depend on Figures 1 to 6 It is given that the filtering mechanism 8 is composed of a pressure pump 11, a liquid suction pipe 12, a first filter component 13 and a second filter component 14. The pressure pump 11 is fixedly connected to the middle position inside the isolation frame 4. The pressure pump 11 is connected to the feed chamber 5 through the liquid suction pipe 12. The first filter component 13 and the second filter component 14 are respectively located inside the two filter chambers 6 and are connected to the liquid outlet of the pressure pump 11 through a connecting pipe sleeve 15. The first filter component 13 and the second filter component 14 are both composed of a tank body 16, a filter cartridge 17, a liquid inlet pipe 18, a scraper component 19, a plurality of legs 20, an inner cover plate 21, an outer cover plate 22 and a rubber sealing pad 23. The filter cartridge 17 is located inside the tank body 16, the liquid inlet pipe 18 is inserted into the tank body 16 and the filter cartridge 17, the scraper component 19 is connected to the inside of the filter cartridge 17, and the inner The cover plate 21 is connected to the top of the filter cartridge 17, the outer cover plate 22 is threadedly connected to the top of the tank body 16, the rubber sealing pad 23 is fixedly connected to the bottom end of the outer cover plate 22 and is press-fitted with the inner cover plate 21, a valve is provided on the liquid inlet pipe 18, a plurality of material discharge through holes 24 are provided at the bottom end of the side of the tank body 16, an arc groove 25 is provided on the inner cover plate 21, a plurality of push-pull handles 26 matching the scraper assembly 19 are provided on the top of the arc groove 25, and the scraper assembly 19 is composed of a central column 27, a fixed partition 28 and a plurality of movable partitions 29, the central column 27 is fixedly connected to the middle position inside the filter cartridge 17, the fixed partition 28 is fixedly connected to the side of the central column 27, the movable partition 29 is sleeved on the central column 27 and rotatably connected thereto, and the top of the movable partition 29 is fixedly connected to the push-pull handle 26;

[0026] The developer solution in the unloading chamber 5 enters the pressure pump 11 through the liquid suction pipe 12, and the pressure pump 11 sends the developer solution into the first filter component 13. At this time, the valve on the second filter component 14 is in a closed state. When it is necessary to clean the impurities in the first filter component 13, the valve on the first filter component 13 is closed and the valve on the second filter component 14 is opened. Therefore, alternating filtering operations can be achieved without stopping the machine. The developer solution enters the inside of the filter cylinder 17 through the liquid inlet pipe 18. The filter cylinder 17 performs the filtering operation on the developer solution, and the impurities remain in the inside of the filter cylinder 17. When there are many impurities in the filter cylinder 17, one of the push-pull handles 26 is turned, and the push-pull handle 2 6 drives the corresponding movable baffle 29 to rotate around the central column 27, and the inner wall of the filter cartridge 17 can be scraped by the movable baffle 29. By setting a plurality of movable baffles 29, multiple scraping operations can be performed, thereby increasing the service life of the filter cartridge 17 and reducing the number of cleaning times. When the push-pull handle 26 is rotated, the outer cover plate 22 needs to be opened first, and then the rubber sealing pad 23 is separated from the inner cover plate 21. After the rotation is completed, the outer cover plate 22 is covered, and the arc groove 25 on the inner cover plate 21 is compressed and sealed by the rubber sealing pad 23 to prevent the developer from leaking along the arc groove 25. When the filter cartridge 17 needs to be cleaned, the inner cover plate 21 and the outer cover plate 22 can be disassembled.

[0027] During operation, by providing a feeding chamber, a filtering chamber, a collecting chamber, a filtering mechanism and a liquid return pump, the developer solution can be recycled and filtered to improve the cleanliness and service life of the developer solution; by providing a filtering mechanism composed of a pressure pump, a liquid suction pipe, a first filtering assembly and a second filtering assembly, the developer solution can be filtered alternately through the first filtering assembly and the second filtering assembly, so when cleaning the first filtering assembly and the second filtering assembly, there is no need to stop the operation to avoid affecting the work efficiency; by providing a first filtering assembly and a second filtering assembly composed of a tank body, a filter cartridge, a liquid inlet pipe, a scraper assembly, a plurality of legs, an inner cover plate, an outer cover plate and a rubber sealing pad, the developer solution can be pressurized to achieve sufficient filtration; by providing a scraper assembly composed of a central column, a fixed partition plate and a plurality of movable partition plates, the inner surface of the filter cartridge can be scraped regularly to avoid clogging of the filter cartridge.

Claims

1. A circuit board developing device, comprising a housing (1), characterized in that: A circuit board conveyor belt (2) and a plurality of developing nozzles (3) inserted through the shell (1) are arranged at the top of the shell (1); an isolation frame (4) is fixedly arranged inside the shell (1); a material discharge chamber (5), a plurality of filter chambers (6) and a material collection chamber (7) are formed between the isolation frame (4) and the shell (1); a filtering mechanism (8) is arranged inside the isolation frame (4); a plurality of material discharge through holes (9) are opened near the filter chamber (6) of the isolation frame (4); and a liquid return pump (10) is arranged at the bottom of one end of the shell (1) and is connected to the material collection chamber (7) and fixedly connected to the developing nozzle (3).

2. A circuit board developing device according to claim 1, characterized in that: The filtering mechanism (8) is composed of a pressure pump (11), a liquid extraction pipe (12), a first filtering assembly (13) and a second filtering assembly (14); the pressure pump (11) is fixedly connected to a middle position inside the isolation frame (4); the pressure pump (11) is connected to the material discharge chamber (5) through the liquid extraction pipe (12); the first filtering assembly (13) and the second filtering assembly (14) are respectively located inside the two filtering chambers (6) and are connected to the liquid outlet of the pressure pump (11) through a connecting pipe sleeve (15).

3. A circuit board developing device according to claim 2, characterized in that: The first filter assembly (13) and the second filter assembly (14) are both composed of a tank body (16), a filter cartridge (17), a liquid inlet pipe (18), a scraper assembly (19), a plurality of legs (20), an inner cover plate (21), an outer cover plate (22) and a rubber sealing pad (23); the filter cartridge (17) is located inside the tank body (16); the liquid inlet pipe (18) is inserted into the tank body (16) and the filter cartridge (17); the scraper assembly (19) is connected to the inside of the filter cartridge (17); the inner cover plate (21) is connected to the top end of the filter cartridge (17); the outer cover plate (22) is threadedly connected to the top end of the tank body (16); the rubber sealing pad (23) is fixedly connected to the bottom end of the outer cover plate (22) and is press-fitted with the inner cover plate (21); and a valve is provided on the liquid inlet pipe (18).

4. A circuit board developing device according to claim 3, characterized in that: The bottom end of the side of the tank body (16) is provided with a plurality of material discharge through holes (24), the inner cover plate (21) is provided with an arc groove (25), and the top of the arc groove (25) is provided with a plurality of push-pull handles (26) matching with the scraper assembly (19).

5. A circuit board developing device according to claim 4, characterized in that: The scraper assembly (19) is composed of a central column (27), a fixed partition (28) and a plurality of movable partitions (29); the central column (27) is fixedly connected to the middle position inside the filter cartridge (17); the fixed partition (28) is fixedly connected to the side of the central column (27); the movable partition (29) is sleeved on the central column (27) and rotatably connected thereto; the top end of the movable partition (29) is fixedly connected to the push-pull handle (26).

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