Copper surface cleaning machine for PCB production

Abstract

The invention discloses a copper surface cleaning machine for PCB production, and belongs to the technical field of PCB production, the copper surface cleaning machine comprises a cleaning box, a fixing column is fixed to the middle position of the lower end in the cleaning box, a plurality of partition plates are fixed to the side edge of the fixing column, and a water washing tank, an alkaline tank and an acid tank are formed between the partition plates and the cleaning box. A PCB is placed on a folded plate, a screw rod is screwed to push an abutting plate to move downwards to clamp and fix the PCB on the folded plate, then an electric push rod is started to contract to drive the PCB on the folded plate to enter an alkaline tank to be soaked and cleaned with an alkaline solution, the electric push rod pushes a lifting plate to move upwards after cleaning, a first motor drives a rotating plate and the electric push rod to rotate, and then the PCB on the folded plate is clamped and fixed. The lifting plate rotates to the position above the acid tank, the electric push rod shrinks to drive the PCB on the folded plate to enter the acid tank to be soaked and cleaned with an acid solution, oxides on the surface of the PCB can be removed and cleaned by arranging the fixing assembly and the like, and the quality of subsequent finished PCB products is improved.

Description

Technical Field

[0001] This invention belongs to the field of PCB board manufacturing technology, specifically relating to a copper surface cleaning machine for PCB board production. Background Technology

[0002] A PCB, also known as a printed circuit board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. In the PCB manufacturing process, the copper surface cleaning machine is a crucial piece of equipment to ensure the cleanliness and oxidation-free nature of the circuit board surface, directly affecting the quality of subsequent processes such as pattern transfer, etching, or electroplating.

[0003] Existing technologies have the following problems: current PCB manufacturing processes cannot remove oxides from the PCB surface; oxides adhering to the PCB surface affect the quality of subsequent processes such as pattern transfer, etching, or electroplating; and existing cleaning equipment has poor cleaning effect on PCBs. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a copper surface cleaning machine for PCB board production, which has the characteristics of removing oxides from the PCB board surface and achieving good cleaning effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a copper surface cleaning machine for PCB board production, comprising a cleaning tank, wherein a fixing column is fixed at the lower middle position inside the cleaning tank, and several partitions are fixed on the side of the fixing column, forming a water washing tank, an alkaline tank and an acidic tank between the partitions and the cleaning tank, and a drain valve is provided at the lower end of the side of the cleaning tank corresponding to the positions of the water washing tank, the alkaline tank and the acidic tank, a fixing component is provided on the upper side of the fixing column, and a spraying component and a cleaning component are provided in the water washing tank.

[0006] Furthermore, the fixing assembly includes a lifting plate, a cavity, a motor, a rotating plate, an electric push rod, a folding plate, a screw, and a stop plate. The fixing column has a cavity inside, in which a motor is installed. A rotating plate is provided at the output end of the motor. An electric push rod is installed at the upper end of the rotating plate. The lifting plate is fixed at the output end of the electric push rod. A folding plate is fixed on one side of the lower end of the lifting plate. A screw is threadedly connected to the lifting plate at a position corresponding to the folding plate. A stop plate is rotatably connected to the lower end of the screw.

[0007] Furthermore, one end of the abutment plate is tightly attached to the side of the folding plate, a bearing rotating seat is provided between the abutment plate and the screw, and the folding plate and the lifting plate are welded as a whole structure.

[0008] Furthermore, the surfaces of the folding plate, screw, and abutment are all coated with a corrosion-resistant coating, and the sides of the folding plate are staggered from the sides of the fixing column.

[0009] Furthermore, the spray assembly includes a water storage tank, a water pump, a water delivery pipe, a folding pipe, nozzles, an injection pipe, and a monitoring component. The folding pipe is fixed in the washing tank, and several nozzles are installed inside the folding pipe. A water storage tank is provided on one side of the washing tank. A water pump is connected to the lower side of one end of the water storage tank through a water pumping pipe. The folding pipe is connected to the water pump through a water delivery pipe. An injection pipe is fixed on the upper side of the water storage tank, and a monitoring component is provided inside the water storage tank.

[0010] Furthermore, the monitoring component includes a float, a sliding rod, a top plate, a buzzer, and a switch. A float is installed on one side inside the water tank, a sliding rod is fixed to the upper end of the float, a top plate is fixed to the upper end of the sliding rod, a buzzer is installed on one side of the upper end of the water tank corresponding to the position of the top plate, and a switch is installed on the upper end of the buzzer.

[0011] Furthermore, the cleaning assembly includes a fixed frame, a second motor, a main rod, a rotating rod, a brush roller, a secondary rod, a first gear, and a second gear. The fixed frame is fixed at the front end of the cleaning box corresponding to the position of the folding tube. The second motor is installed on one side of the front end of the fixed frame. The main rod is set at the output end of the second motor. The secondary rod is set on one side of the main rod. The rotating rod is installed on both the secondary rod and the main rod. The brush roller is fixed on the rotating rod. The first gear is fixed on the main rod outside the cleaning box. The second gear is fixed on the surface of the secondary rod at the position corresponding to the first gear.

[0012] Furthermore, the cleaning assembly also includes a rotating base, a rectangular block, a rectangular groove, fixing bolts, and fixing holes. The main rod and the auxiliary rod are each fixed with a rotating base near the rotating rod end. The rotating rod is fixed with a rectangular block near the rotating base end. A rectangular groove corresponding to the rectangular block is opened at one end of the rotating base. The rectangular block and the rotating base are connected by fixing bolts. A fixing hole corresponding to the fixing bolts is opened on the side of the rectangular block.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a fixing component, adds acidic and alkaline cleaning solutions to acidic and alkaline tanks respectively. When cleaning a PCB board, the PCB board is placed on a folding plate, and the screw is turned to push the abutment plate downward to clamp and fix the PCB board on the folding plate. Then, the electric push rod is activated to retract and drive the PCB board on the folding plate into the alkaline tank for immersion and cleaning in the alkaline solution. After cleaning, the electric push rod pushes the lifting plate upward, and the motor drives the rotating plate and the electric push rod to rotate. The lifting plate rotates to above the acidic tank, and the electric push rod retracts to drive the PCB board on the folding plate into the acidic tank for immersion and cleaning in the acidic solution. By setting up the fixing component, oxides on the surface of the PCB board can be removed and cleaned, improving the quality of the subsequent PCB board finished product.

[0014] 2. This invention, by setting up a spray assembly, cleans the oxides on the surface of the PCB board with acid and alkali solutions. When the motor rotates, it drives the lifting plate to rotate above the water washing tank. The electric push rod retracts, driving the PCB board in the folding plate into the water washing tank. The water pump is turned on, and the cleaning solution in the storage tank is delivered to the folding pipe through the water supply pipe. Several nozzles on the inside of the folding pipe spray water onto the PCB board to clean it, thereby cleaning the residual acid and alkali solutions on the surface of the PCB board. By setting up a spray assembly, the cleaned PCB board can be washed with water, avoiding corrosion of the PCB board by the residual acid and alkali solutions on the PCB board surface.

[0015] 3. By setting up a cleaning component, when spraying water to wash the PCB board, the second motor drives the main rod to rotate. The rotation of the main rod drives the auxiliary rod to rotate through gear one and gear two. The rotation of the main rod and the auxiliary rod drives the two rotating rods to rotate. The rotation of the two rotating rods can brush the PCB board being sprayed and washed by the brush roller. By setting up the cleaning component, the PCB board can be brushed in conjunction with the spraying, thereby improving the water washing effect of the PCB board. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a rear-view perspective view of the present invention; Figure 3 This is a cross-sectional perspective view of the fixing column of the present invention; Figure 4 This is a cross-sectional perspective view of the cleaning tank of the present invention; Figure 5 This is a sectional perspective view of the water storage tank of the present invention; Figure 6 This is a perspective view of the brush roller of the present invention during installation; In the diagram: 1. Cleaning tank; 2. Fixing assembly; 21. Lifting plate; 22. Cavity; 23. Motor 1; 24. Rotating plate; 25. Electric push rod; 26. Folding plate; 27. Screw; 28. Support plate; 3. Spray assembly; 31. Water storage tank; 32. Water pump; 33. Water delivery pipe; 34. Folding pipe; 35. Spray head; 36. Water injection pipe; 37. Monitoring assembly; 371. Float; 372. Sliding rod; 373. Top plate; 374. 1. Buzzer; 375. Switch; 4. Cleaning assembly; 41. Fixing frame; 42. Motor II; 43. Main rod; 44. Rotating rod; 45. Brush roller; 46. Sub-rod; 47. Gear I; 48. Gear II; 49. Rotary seat; 410. Rectangular block; 411. Rectangular groove; 412. Fixing bolt; 413. Fixing hole; 5. Washing tank; 6. Alkaline tank; 7. Acidic tank; 8. Fixing column; 9. Drain valve; 10. Partition. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figure 1-6 The present invention provides the following technical solution: a copper surface cleaning machine for PCB board production, including a cleaning tank 1, a fixing column 8 fixed at the lower middle position inside the cleaning tank 1, a plurality of partitions 10 fixed on the side of the fixing column 8, the plurality of partitions 10 and the cleaning tank 1 forming a water washing tank 5, an alkaline tank 6 and an acidic tank 7, a drain valve 9 provided at the lower side of the cleaning tank 1 corresponding to the positions of the water washing tank 5, the alkaline tank 6 and the acidic tank 7, a fixing component 2 provided on the upper side of the fixing column 8, and a spraying component 3 and a cleaning component 4 provided in the water washing tank 5.

[0019] In this invention, the fixing component 2 further includes a lifting plate 21, a cavity 22, a motor 23, a rotating plate 24, an electric push rod 25, a folding plate 26, a screw 27, and a stop plate 28. The fixing column 8 has a cavity 22 inside, and the motor 23 is installed in the cavity 22. The output end of the motor 23 is provided with a rotating plate 24. The upper end of the rotating plate 24 is equipped with an electric push rod 25. The output end of the electric push rod 25 is fixed to the lifting plate 21. The folding plate 26 is fixed to one side of the lower end of the lifting plate 21. The screw 27 is threadedly connected to the position of the lifting plate 21 corresponding to the folding plate 26. The lower end of the screw 27 is rotatably connected to the stop plate 28.

[0020] By adopting the above technical solution, when using the copper surface cleaning machine for PCB board production, the device is installed in a suitable position, and acidic and alkaline cleaning solutions are added to the acidic tank 7 and alkaline tank 6 respectively. When cleaning the PCB board, the PCB board is placed on the folding plate 26, and the screw 27 is turned to push the abutment plate 28 downward to clamp and fix the PCB board on the folding plate 26. Then, the electric push rod 25 is turned to retract and drive the PCB board on the folding plate 26 into the alkaline tank 6 for immersion and cleaning in the alkaline solution. After cleaning, the electric push rod 25 pushes the lifting plate 21 upward, and the motor 23 drives the rotating plate 24 and the electric push rod 25 to rotate. The lifting plate 21 rotates to above the acidic tank 7, and the electric push rod 25 retracts and drives the PCB board on the folding plate 26 into the acidic tank 7 for immersion and cleaning in the acidic solution. By setting the fixing component 2, the oxides on the surface of the PCB board can be removed and cleaned, improving the quality of the subsequent PCB board finished product.

[0021] Furthermore, in this invention, one end of the abutment plate 28 is in close contact with the side of the folding plate 26, a bearing rotating seat is provided between the abutment plate 28 and the screw 27, and the folding plate 26 and the lifting plate 21 are welded as a whole structure.

[0022] By adopting the above technical solution, the bottom plate 28 is in close contact with the side of the folding plate 26, which can limit the bottom plate 28 and prevent the bottom plate 28 from rotating with the screw 27. The folding plate 26 and the lifting plate 21 are welded as a whole, which is more robust and durable.

[0023] Furthermore, in this invention, the surfaces of the folding plate 26, the screw 27 and the abutment plate 28 are all coated with a corrosion-resistant coating, and the side of the folding plate 26 is offset from the side of the fixing post 8.

[0024] By adopting the above technical solution, the folding plate 26, screw 27 and abutment plate 28 are prevented from being corroded by acid and alkali solutions, and the folding plate 26 will not scratch or hit the fixing column 8.

[0025] In this embodiment, when using the copper surface cleaning machine for PCB board production, the device is installed in a suitable position, and acidic and alkaline cleaning solutions are added to the acidic tank 7 and alkaline tank 6 respectively. When cleaning the PCB board, the PCB board is placed on the folding plate 26, and the screw 27 is turned to push the abutment plate 28 downward to clamp and fix the PCB board on the folding plate 26. Then, the electric push rod 25 is turned to retract and drive the PCB board on the folding plate 26 into the alkaline tank 6 for immersion and cleaning in the alkaline solution. After cleaning, the electric push rod 25 pushes the lifting plate 21 upward, and the motor 23 drives the rotating plate 24 and the electric push rod 25 to rotate. The lifting plate 21 rotates to above the acidic tank 7, and the electric push rod 25 retracts and drives the PCB board on the folding plate 26 into the acidic tank 7 for immersion and cleaning in the acidic solution. By setting the fixing component 2, the oxides on the surface of the PCB board can be removed and cleaned, improving the quality of the subsequent PCB board finished product. Example 2 The difference between this embodiment and embodiment 1 is that the spray assembly 3 includes a water storage tank 31, a water pump 32, a water delivery pipe 33, a bend pipe 34, a nozzle 35, a water injection pipe 36, and a monitoring component 37. The bend pipe 34 is fixed in the washing tank 5, and several nozzles 35 are installed inside the bend pipe 34. A water storage tank 31 is provided on one side of the washing tank 1. The lower side of one end of the water storage tank 31 is connected to the water pump 32 through a water pumping pipe. The bend pipe 34 and the water pump 32 are connected through a water delivery pipe 33. A water injection pipe 36 is fixed on one side of the upper end of the water storage tank 31. The monitoring component 37 is provided inside the water storage tank 31.

[0026] By adopting the above technical solution, after cleaning the oxides on the PCB board surface with acid and alkali solutions, the motor 23 rotates to drive the lifting plate 21 to rotate above the water washing tank 5. The electric push rod 25 retracts to drive the PCB board in the folding plate 26 into the water washing tank 5. The water pump 32 is turned on to transport the cleaning solution in the water storage tank 31 to the folding pipe 34 through the water supply pipe 33. Several nozzles 35 on the inside of the folding pipe 34 spray water onto the PCB board to clean it, thereby cleaning the residual acid and alkali solutions on the PCB board surface. By setting the spray assembly 3, the cleaned PCB board can be washed with water to avoid the residual acid and alkali solutions on the PCB board surface from corroding the PCB board.

[0027] Furthermore, in this invention, the monitoring component 37 includes a float 371, a slide bar 372, a top plate 373, a buzzer 374, and a switch 375. The float 371 is provided on one side inside the water tank 31. The slide bar 372 is fixed to the upper end of the float 371. The top plate 373 is fixed to the upper end of the slide bar 372. The buzzer 374 is installed on one side of the upper end of the water tank 31 at a position corresponding to the top plate 373. The switch 375 is provided on the upper end of the buzzer 374.

[0028] By adopting the above technical solution, the float 371 rises and falls with the water level inside the water tank 31. When the water in the water tank 31 is used up, the float 371 drives the top plate 373 at the upper end of the slide rod 372 to contact the switch 375 at the upper end of the buzzer 374, thereby triggering the buzzer 374 to alarm and prompt the staff to add water to the water tank 31 through the water injection pipe 36. By setting the monitoring component 37, the water level inside the water tank 31 can be monitored and alarmed to avoid the water in the water tank 31 being used up and affecting the subsequent water washing work.

[0029] In this embodiment, after cleaning the oxides on the PCB board surface with an acid and alkali solution, the motor 23 rotates, causing the lifting plate 21 to rotate above the washing tank 5. The electric push rod 25 retracts, causing the PCB board in the folding plate 26 to enter the washing tank 5. The water pump 32 is turned on, and the cleaning solution in the storage tank 31 is delivered to the folding pipe 34 through the water supply pipe 33. Several nozzles 35 on the inside of the folding pipe 34 spray water onto the PCB board to clean it, thereby cleaning the residual acid and alkali solution on the PCB board surface. By setting the spray assembly 3, the cleaned PCB board can be rinsed with water to avoid PC... The residual acid and alkali solutions on the surface of the B board cause corrosion to the PCB board. By setting up the monitoring component 37, the float 371 rises and falls with the water level inside the water tank 31. When the water in the water tank 31 is used up, the float 371 drives the top plate 373 at the top of the slide rod 372 to contact the switch 375 at the top of the buzzer 374, thereby triggering the buzzer 374 to alarm and prompt the staff to add water to the water tank 31 through the water injection pipe 36. By setting up the monitoring component 37, the water level inside the water tank 31 can be monitored and alarmed to avoid the water in the water tank 31 being used up and affecting the subsequent water washing work. Example 3 The difference between this embodiment and embodiments 1 and 2 is that the cleaning component 4 includes a fixed frame 41, a second motor 42, a main rod 43, a rotating rod 44, a brush roller 45, a secondary rod 46, a first gear 47, and a second gear 48. The fixed frame 41 is fixed at the front end of the cleaning tank 1 at the position corresponding to the folding tube 34. The second motor 42 is installed on one side of the front end of the fixed frame 41. The main rod 43 is provided at the output end of the second motor 42. The secondary rod 46 is provided on one side of the main rod 43. The rotating rod 44 is installed on both the secondary rod 46 and the main rod 43. The brush roller 45 is fixed on the rotating rod 44. The first gear 47 is fixed on the main rod 43 on the outside of the cleaning tank 1. The second gear 48 is fixed on the surface of the secondary rod 46 at the position corresponding to the first gear 47.

[0030] By adopting the above technical solution, when spraying water to wash the PCB board, the second motor 42 is turned on to drive the main rod 43 to rotate. The rotation of the main rod 43 drives the auxiliary rod 46 to rotate through the first gear 47 and the second gear 48. The rotation of the main rod 43 and the auxiliary rod 46 drives the two rotating rods 44 to rotate. The rotation of the two rotating rods 44 can brush the PCB board being sprayed and washed by the brush roller 45. By setting the cleaning component 4, the PCB board can be brushed in conjunction with the spraying, thereby improving the water washing effect of the PCB board.

[0031] Furthermore, the cleaning component 4 in this invention also includes a rotating base 49, a rectangular block 410, a rectangular groove 411, a fixing bolt 412, and a fixing hole 413. The main rod 43 and the auxiliary rod 46 are both fixed with the rotating base 49 near the end of the rotating rod 44. The rotating rod 44 is fixed with the rectangular block 410 near the end of the rotating base 49. The rotating base 49 has a rectangular groove 411 corresponding to the rectangular block 410 at one end. The rectangular block 410 and the rotating base 49 are connected by the fixing bolt 412. The rectangular block 410 has a fixing hole 413 corresponding to the fixing bolt 412 on its side.

[0032] By adopting the above technical solution, the fixing bolt 412 can be unscrewed from the fixing hole 413 on the side of the rectangular block 410, and the rectangular block 410 at one end of the rotating rod 44 can be removed from the rectangular groove 411 at one end of the rotating seat 49. Thus, the rotating rod 44 and the brush roller 45 can be removed from the water washing tank 5. By setting the rotating seat 49, it is easy to disassemble and clean the brush roller 45, and to avoid the brush roller 45 from being attached with impurities after long-term use, which would affect the subsequent brushing quality of the PCB board.

[0033] In this embodiment, when spraying water to wash the PCB board, the second motor 42 is turned on to drive the main rod 43 to rotate. The rotation of the main rod 43 drives the auxiliary rod 46 to rotate through the first gear 47 and the second gear 48. The rotation of the main rod 43 and the auxiliary rod 46 drives the two rotating rods 44 to rotate. The rotation of the two rotating rods 44 can brush the PCB board being sprayed and washed by the brush roller 45. By setting the cleaning component 4, the PCB board can be brushed in conjunction with the spray, improving the water washing effect of the PCB board. The fixing bolt 412 is unscrewed from the fixing hole 413 on the side of the rectangular block 410, and the rectangular block 410 at one end of the rotating rod 44 can be taken out from the rectangular groove 411 at one end of the rotating seat 49. Thus, the rotating rod 44 and the brush roller 45 can be taken out from the water washing tank 5. The rotating seat 49 and the like facilitate the disassembly and cleaning of the brush roller 45, and prevent the brush roller 45 from accumulating impurities after long-term use, which would affect the subsequent brushing quality of the PCB board.

[0034] In this invention, motor 23 is a previously disclosed technology, and the selected model is Z60-55ZY.

[0035] In this invention, the electric actuator 25 is a prior art technology, and the selected model is FTG50.

[0036] The water pump 32 used in this invention is a previously disclosed technology, and the selected model is PBG25-160.

[0037] In this invention, the buzzer 374 is a previously disclosed technology, and the selected model is AD16-22SM.

[0038] In this invention, motor 42 is a previously disclosed technology, and the selected model is 5IK120GN-CF.

[0039] The working principle and usage process of this invention: When using the copper surface cleaning machine for PCB board production, the device is installed in a suitable position, and acidic and alkaline cleaning solutions are added to the acidic tank 7 and alkaline tank 6 respectively. To clean the PCB board, the PCB board is placed on the folding plate 26. Tightening the screw 27 pushes the abutment plate 28 downwards to clamp and fix the PCB board on the folding plate 26. Then, the electric push rod 25 is activated to retract, causing the PCB board on the folding plate 26 to enter the alkaline tank 6 for immersion and cleaning in the alkaline solution. After cleaning, the electric push rod 25 pushes the lifting plate 21 upwards. The motor 23 drives the rotating plate 24 and the electric push rod 25 to rotate. The lifting plate 21 rotates above the acidic tank 7, and the electric push rod 25 retracts, causing the PCB board on the folding plate 26 to... The PCB board is immersed in acidic solution in acidic bath 7 for cleaning. The fixing components 2 and others remove oxides from the PCB board surface, improving the quality of the final PCB board product. After cleaning the oxides from the PCB board surface with acid and alkali solutions, motor 23 rotates, causing the lifting plate 21 to rotate above the water washing tank 5. The electric push rod 25 retracts, causing the PCB board in the folding plate 26 to enter the water washing tank 5. The water pump 32 is activated, delivering the cleaning solution from the storage tank 31 to the folding pipe 34 via the water supply pipe 33. Several nozzles 35 inside the folding pipe 34 spray water onto the PCB board, cleaning any residual acid and alkali solutions from the PCB board surface. The spraying components 3 further enhance the cleaning effect on the PCB board. Water washing is used to prevent residual acid or alkaline solutions from corroding the PCB board. A monitoring component 37 is installed, and the float 371 rises and falls with the water level inside the water tank 31. When the water in the tank 31 is depleted, the float 371 drives the top plate 373 of the slide rod 372 to contact the switch 375 on the upper end of the buzzer 374, triggering an alarm and prompting staff to add water to the tank 31 via the water inlet pipe 36. The monitoring component 37 monitors and alarms the water level inside the tank 31, preventing the depletion of water from affecting subsequent water washing operations. During the spray washing of the PCB board, motor 2 42 is activated to drive the main rod 43 to rotate. The rotation of the main rod 43 is transmitted through gear 1 47 and... Gear 48 drives the auxiliary rod 46 to rotate. The rotation of the main rod 43 and the auxiliary rod 46 drives the two rotating rods 44 to rotate. The rotation of the two rotating rods 44 can brush the PCB board being sprayed and washed by the brush roller 45. By setting the cleaning component 4, the PCB board can be brushed in conjunction with the spray, improving the washing effect of the PCB board. By unscrewing the fixing bolt 412 from the fixing hole 413 on the side of the rectangular block 410, the rectangular block 410 at one end of the rotating rod 44 can be removed from the rectangular groove 411 at one end of the rotating seat 49. Thus, the rotating rod 44 and the brush roller 45 can be removed from the washing tank 5. The rotating seat 49 and other features facilitate the disassembly and cleaning of the brush roller 45, preventing impurities from adhering to the brush roller 45 after long-term use and affecting the subsequent washing quality of the PCB board.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A copper surface cleaning machine for PCB board production, comprising a cleaning tank (1), characterized in that: A fixing column (8) is fixed at the middle of the lower end inside the cleaning tank (1). Several partitions (10) are fixed on the side of the fixing column (8). The partitions (10) and the cleaning tank (1) form a water washing tank (5), an alkaline tank (6) and an acidic tank (7). A drain valve (9) is provided at the lower end of the side of the cleaning tank (1) corresponding to the positions of the water washing tank (5), the alkaline tank (6) and the acidic tank (7). A fixing component (2) is provided on the upper side of the fixing column (8). A spraying component (3) and a cleaning component (4) are provided in the water washing tank (5).

2. The copper surface cleaning machine for PCB board production according to claim 1, characterized in that: The fixing component (2) includes a lifting plate (21), a cavity (22), a motor (23), a rotating plate (24), an electric push rod (25), a folding plate (26), a screw (27), and a stop plate (28). The fixing column (8) has a cavity (22) inside, a motor (23) is installed in the cavity (22), a rotating plate (24) is provided at the output end of the motor (23), an electric push rod (25) is installed at the upper end of the rotating plate (24), a lifting plate (21) is fixed at the output end of the electric push rod (25), a folding plate (26) is fixed on one side of the lower end of the lifting plate (21), a screw (27) is threadedly connected to the position of the lifting plate (21) corresponding to the folding plate (26), and a stop plate (28) is rotatably connected to the lower end of the screw (27).

3. A copper surface cleaning machine for PCB board production according to claim 2, characterized in that: One end of the abutment plate (28) is in close contact with the side of the folding plate (26). A bearing rotating seat is provided between the abutment plate (28) and the screw (27). The folding plate (26) and the lifting plate (21) are welded as a whole structure.

4. A copper surface cleaning machine for PCB board production according to claim 2, characterized in that: The surfaces of the folding plate (26), screw (27) and abutment (28) are all coated with a corrosion-resistant coating, and the side of the folding plate (26) is offset from the side of the fixing column (8).

5. A copper surface cleaning machine for PCB board production according to claim 1, characterized in that: The spray assembly (3) includes a water tank (31), a water pump (32), a water delivery pipe (33), a folded pipe (34), a nozzle (35), a water injection pipe (36), and a monitoring component (37). The folded pipe (34) is fixed in the washing tank (5), and several nozzles (35) are installed inside the folded pipe (34). A water tank (31) is provided on one side of the cleaning tank (1). A water pump (32) is connected to the lower side of one end of the water tank (31) through a water pumping pipe. The folded pipe (34) and the water pump (32) are connected through a water delivery pipe (33). A water injection pipe (36) is fixed on one side of the upper end of the water tank (31). A monitoring component (37) is provided inside the water tank (31).

6. A copper surface cleaning machine for PCB board production according to claim 5, characterized in that: The monitoring component (37) includes a float (371), a slide bar (372), a top plate (373), a buzzer (374), and a switch (375). A float (371) is installed on one side inside the water tank (31). A slide bar (372) is fixed to the upper end of the float (371). A top plate (373) is fixed to the upper end of the slide bar (372). A buzzer (374) is installed on one side of the upper end of the water tank (31) at a position corresponding to the top plate (373). A switch (375) is installed on the upper end of the buzzer (374).

7. A copper surface cleaning machine for PCB board production according to claim 5, characterized in that: The cleaning assembly (4) includes a fixed frame (41), a second motor (42), a main rod (43), a rotating rod (44), a brush roller (45), a secondary rod (46), a first gear (47), and a second gear (48). The fixed frame (41) is fixed at the front end of the cleaning box (1) at the position corresponding to the folding tube (34). The second motor (42) is installed on one side of the front end of the fixed frame (41). The main rod (43) is provided at the output end of the second motor (42). The secondary rod (46) is provided on one side of the main rod (43). The rotating rod (44) is installed on both the secondary rod (46) and the main rod (43). The brush roller (45) is fixed on the rotating rod (44). The first gear (47) is fixed on the main rod (43) outside the cleaning box (1). The second gear (48) is fixed on the surface of the secondary rod (46) at the position corresponding to the first gear (47).

8. A copper surface cleaning machine for PCB board production according to claim 7, characterized in that: The cleaning assembly (4) also includes a rotating base (49), a rectangular block (410), a rectangular groove (411), a fixing bolt (412), and a fixing hole (413). The main rod (43) and the auxiliary rod (46) are both fixed with a rotating base (49) at the end near the rotating rod (44). The rotating rod (44) is fixed with a rectangular block (410) at the end near the rotating base (49). A rectangular groove (411) corresponding to the rectangular block (410) is opened at one end of the rotating base (49). The rectangular block (410) and the rotating base (49) are connected by a fixing bolt (412). A fixing hole (413) corresponding to the fixing bolt (412) is opened on the side of the rectangular block (410).

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