PCB (Printed Circuit Board) etching processing device

Abstract

The invention belongs to the technical field of circuit board processing, and particularly relates to a PCB circuit board etching processing device which is characterized in that the PCB circuit board etching processing device comprises a base, one side of the top of the base is connected with an etching pool through bolts, one side of the etching pool is provided with a liquid outlet, the inner wall of the liquid outlet is provided with a liquid outlet pipe, one end of the liquid outlet pipe is provided with a seal, and the other end of the liquid outlet pipe is provided with a water inlet. A conveying mechanism is arranged on one side of the top of the base and located on one side of the etching pool, a moving mechanism is arranged on one side of the top of the base, an etching mechanism is arranged on the top of the moving mechanism, and a spraying mechanism is arranged between one side of the conveying mechanism and the etching pool. According to the invention, the etching liquid is undulated from top to bottom under the action of the air flow, and the PCBs are shaken under the undulation action of the etching liquid, so that the overlapped PCBs are dispersed, and the situation that the overlapped parts of the PCBs cannot be etched due to the fact that a plurality of the PCBs are overlapped together is prevented.

Description

Technical Field

[0001] The invention relates to the field of circuit board processing, and in particular to a PCB circuit board etching processing device. Background Art

[0002] PCB is a printed circuit board, also known as a printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. Because it is made using electronic printing technology, it is called a "printed" circuit board. During the PCB circuit board processing, the circuit diagram on the circuit board is often processed by etching.

[0003] After searching, a Chinese patent application with application publication number CN117355043A discloses a PCB circuit board etching processing device, which belongs to the field of PCB circuit board processing, including a printing etching pool, a circuit board conveying platform and a printed circuit board. The top of the printing etching pool is provided with a lifting and closing mechanism, and the top of the printing etching pool is provided with an etching control mechanism. The lifting and closing mechanism includes an electric lifting rod provided at the top of the printing etching pool, and the bottom of the electric lifting rod is provided with a lifting and closing cover that is slidably connected to the inner wall of the printing etching pool, and the bottom of the lifting and closing cover is provided with a circuit board holding platform. When etching the printed circuit board, the present invention obtains its complete etching time by detecting the time when the copper-clad sheet with the same copper-clad thickness as the same batch of circuit boards is completely etched, and transmits an etching completion signal to the electric lifting rod, lifts the printed circuit board upward, does not contact with the etching solution, and ends the etching process, thereby accurately controlling the etching time and improving the qualified rate of the PCB circuit board after etching.

[0004] When etching existing circuit boards, multiple circuit boards are often placed in an etching tank at the same time, and the circuit boards are etched by an etching solution. However, since multiple circuit boards overlap, the overlapping parts of the circuit boards cannot be etched, which affects the etching process of the circuit boards. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A PCB circuit board etching processing device comprises a base, one side of the top of the base is connected with an etching pool by bolts, and one side of the etching pool is provided with a drain port, the inner wall of the drain port is provided with a drain pipe, and one end of the drain pipe is provided with a seal, one side of the top of the base is provided with a conveying mechanism, and the conveying mechanism is located on one side of the etching pool, one side of the top of the base is provided with a moving mechanism, and the top of the moving mechanism is provided with an etching mechanism, and a spraying mechanism is provided between one side of the conveying mechanism and the etching pool.

[0006] Preferably, the moving mechanism includes a moving rail, a first screw, a first motor and a moving block, and the bottom of the moving rail is connected to the top of the base by bolts, the two ends of the first screw are rotatably connected to the opposite sides of the moving rail by bearings, the moving block is slidably connected to the inner wall of the moving rail, a threaded hole is penetrated through one side of the moving block, the threaded hole is threadedly connected to the first screw, one side of the moving rail is connected to the first motor by bolts, and one end of the first motor is fixedly connected to one end of the first screw.

[0007] Preferably, the etching mechanism includes a support seat, a second screw, a second motor, a third motor and a placement rack, and the bottom of the support seat is fixedly connected to the top of the moving block, a connecting port is penetrated through a position near the top of one side of the support seat, and the two opposite sides of the connecting port are rotationally connected to the second screw through bearings, and a connecting block is slidably connected to the inner wall of the connecting port, a threaded hole is penetrated through the top of the connecting block, and the threaded hole is threadedly connected to the second screw, the top of the support seat is connected to the second motor by bolts, one end of the second motor is fixedly connected to the top of the second screw, one side of the connecting block is connected to a support plate by bolts, one side of the support plate is fixedly connected to the third motor by bolts, one end of the third motor is connected to a support rod by bolts, and the bottom of the support rod is connected to one side of the top of the placement rack by bolts.

[0008] Preferably, a through opening is provided at the bottom of the placement rack, and springs are connected to both sides of the inner wall of the bottom of the placement rack by bolts, and filter plates are connected to the tops of multiple springs by bolts, and the filter plates are slidably connected to the inner wall of the placement rack.

[0009] Preferably, the conveying mechanism consists of a plurality of legs, two shafts, two rollers, a conveyor belt and a fourth motor; the bottoms of the plurality of legs are connected to the top of the base by bolts; two adjacent legs are rotationally connected to the shafts by bearings; the rollers are fixedly sleeved on the outer wall of the shafts; one side of one of the legs is connected to the fourth motor by bolts; one end of the fourth motor is fixedly connected to the shaft; and the conveyor belt is rotationally connected to the two rollers.

[0010] Preferably, the injection mechanism includes a turntable, a push rod, a pressure plate and an airbag, and one side of the turntable is welded to one of the shaft rods, a pin is welded to the other side of the turntable near the top, the outer wall of the pin is rotatably sleeved with a sleeve, the two ends of the push rod are respectively connected to the sleeve and the pressure plate by hinges, the airbag is located between the bottom of the pressure plate and the top of the base, a injection pipe is provided on one side of the airbag, an exhaust valve is provided at one end of the injection pipe, the other end of the injection pipe is located inside the etching pool, and the other end of the injection pipe is arranged vertically upward.

[0011] Preferably, a swing mechanism is provided between the etching mechanism and the etching pool, and the swing mechanism cooperates with the etching mechanism.

[0012] Preferably, the swing mechanism is composed of a rotating rod, a top plate, a support rod and a transmission assembly, and the two ends of the rotating rod are rotatably connected to the two sides opposite to the placement frame through bearings, the outer wall of the rotating rod is provided with a protrusion, and the outer wall of the protrusion is rotatably sleeved with a sleeve, the two ends of the top plate are respectively connected to the sleeve and the filter plate through hinges, one side of the support rod is connected to the inner wall of the etching pool by bolts, and the support rod and the rotating rod are connected through a transmission assembly.

[0013] Preferably, the transmission assembly consists of a gear and a rack, and the gear is meshed with the rack, one side of the rack is connected to the support rod by bolts, a support shaft is welded to one end of the rotating rod, and the gear is fixedly sleeved on the outer wall of the support shaft.

[0014] The beneficial effects of the present invention are: The present invention provides an etching mechanism, a conveying mechanism and a spraying mechanism. When a PCB circuit board is etched, the PCB circuit board is placed inside the etching mechanism. At this time, the etching mechanism is started, and the etching mechanism drives the PCB circuit board to move downward, so that the PCB circuit board is located inside the etching tank, and the etching liquid immerses the PCB circuit board, so that the PCB circuit board is etched by the etching liquid. During this period, the conveying mechanism is started to convey the etched PCB circuit board at any time. During this period, the turntable rotates with the rotation of the conveying mechanism, and the pin shaft rotates with the center of the turntable at the center of the circle. At this time, the push rod drives the pressing plate to swing back and forth up and down under the action of the pin shaft and the shaft sleeve, and the pressing plate will press the airbag when swinging back and forth up and down. The air bag is squeezed and the gas inside the air bag is ejected through the ejection pipe after being squeezed. Since one end of the ejection pipe is vertically upward, the ejected airflow will flow from bottom to top. At this time, the etching liquid will fluctuate from top to bottom under the action of the airflow, and the PCB circuit board will shake under the action of the etching liquid fluctuation, so that the overlapping PCB circuit boards are dispersed, so as to improve the etching effect of the PCB circuit board, and prevent the overlapping parts of the circuit board from being unable to be etched due to the overlapping of multiple circuit boards, thereby affecting the etching process of the circuit board. Since an exhaust valve is provided at one end of the ejection pipe, the etching liquid cannot enter the interior of the ejection pipe through the exhaust valve, so as to avoid the etching liquid reducing the etching of the PCB circuit board. The present invention provides an etching mechanism and a swinging mechanism. The etching mechanism drives the PCB circuit board to move downward. When the PCB circuit board is located inside the etching pool, the engagement between the gear and the rack causes the rotating rod to rotate. At this time, the protrusion rotates synchronously with the rotation of the rotating rod, and the top plate drives the filter plate to swing back and forth up and down under the action of the sleeve and the protrusion. Thus, the up and down reciprocating swing of the filter plate can facilitate the dispersed treatment of the stacked PCB circuit boards, so as to improve the etching effect of the PCB circuit boards. When the etching of the PCB circuit boards is completed, the etching mechanism moves upward. At this time, the vibration of the filter plate can facilitate the discharge of the etching liquid adhered to the PCB circuit board, so as to dry the PCB circuit board, and prevent the etching liquid from adhering to the PCB circuit board, causing the PCB circuit board to be attached to the conveyor belt due to moisture, thereby affecting the transportation of the PCB circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a PCB circuit board etching processing device proposed by the present invention; Figure 2 A schematic diagram of the side structure of a PCB circuit board etching processing device proposed by the present invention; Figure 3 A schematic diagram of the etching mechanism structure of a PCB circuit board etching processing device proposed by the present invention; Figure 4 A schematic diagram of the structure of a swing mechanism of a PCB circuit board etching processing device proposed by the present invention; Figure 5 for Figure 4 Schematic diagram of the structure at A in FIG. Figure 6 A schematic diagram of the structure of a conveying mechanism of a PCB circuit board etching processing device proposed by the present invention; Figure 7 The present invention provides a schematic structural diagram of a spray mechanism of a PCB circuit board etching processing device.

[0016] In the accompanying drawings: 1, base; 2, etching pool; 3, drain pipe; 4, conveying mechanism; 5, etching mechanism; 6, moving mechanism; 7, injection mechanism; 8, moving rail; 9, first screw; 10, first motor; 11, support seat; 12, connection port; 13, connection block; 14, second screw; 15, second motor; 16, support plate; 17, third motor; 18, support rod; 19, placement rack; 20, filter plate; 21, swing mechanism; 22, spring; 23, rotating rod; 24, raised portion; 25, sleeve; 26, top plate; 27, support rod; 28, gear; 29, rack; 30, support leg; 31, shaft; 32, roller; 33, conveyor belt; 34, fourth motor; 35, turntable; 36, pin; 37, bushing; 38, pressure plate; 39, push rod; 40, air bag; 41, injection pipe. DETAILED DESCRIPTION

[0017] Example 1, reference Figure 1-Figure 7 , a PCB circuit board etching processing device, including a base 1, one side of the top of the base 1 is connected with an etching pool 2 by bolts, and one side of the etching pool 2 is provided with a drain port, the inner wall of the drain port is provided with a drain pipe 3, and one end of the drain pipe 3 is provided with a seal, one side of the top of the base 1 is provided with a conveying mechanism 4, and the conveying mechanism 4 is located on one side of the etching pool 2, one side of the top of the base 1 is provided with a moving mechanism 6, and the top of the moving mechanism 6 is provided with an etching mechanism 5, and an injection mechanism 7 is provided between one side of the conveying mechanism 4 and the etching pool 2, the etching liquid will produce ripples from top to bottom under the action of the airflow, and the PCB circuit board will shake under the action of the etching liquid ripples, so that the overlapping PCB circuit boards are dispersed, so as to improve the etching effect of the PCB circuit board, prevent the overlapping parts of the circuit board from being unable to be etched due to the overlapping of multiple circuit boards, thereby affecting the etching processing of the circuit board, and because an exhaust valve is provided at one end of the injection pipe 41, the etching liquid cannot enter the interior of the injection pipe 41 through the exhaust valve, so that the etching liquid can be prevented from reducing the etching of the PCB circuit board.

[0018] On the basis of the above, the moving mechanism 6 includes a moving rail 8, a first screw 9, a first motor 10 and a moving block, and the bottom of the moving rail 8 is connected to the top of the base 1 by bolts, and the two ends of the first screw 9 are rotatably connected to the opposite sides of the moving rail 8 by bearings, and the moving block is slidably connected to the inner wall of the moving rail 8. A threaded hole is penetrated through one side of the moving block, and the threaded hole is threadedly connected to the first screw 9. One side of the moving rail 8 is connected to the first motor 10 by bolts, and one end of the first motor 10 is fixedly connected to one end of the first screw 9.

[0019] On the basis of the above, the etching mechanism 5 includes a support seat 11, a second screw 14, a second motor 15, a third motor 17 and a placement rack 19, and the bottom of the support seat 11 is fixedly connected to the top of the moving block, a connection port 12 is penetrated through one side of the support seat 11 near the top, and the two opposite sides of the connection port 12 are rotatably connected to the second screw 14 through bearings, and the inner wall of the connection port 12 is slidably connected with a connecting block 13, and a threaded hole is penetrated through the top of the connecting block 13, and the threaded hole is threadedly connected to the second screw 14, the top of the support seat 11 is connected to the second motor 15 by bolts, one end of the second motor 15 is fixedly connected to the top of the second screw 14, one side of the connecting block 13 is connected to a support plate 16 by bolts, one side of the support plate 16 is fixedly connected to the third motor 17 by bolts, one end of the third motor 17 is connected to a support rod 18 by bolts, and the bottom of the support rod 18 is connected to one side of the top of the placement rack 19 by bolts.

[0020] On the basis of the above, a through opening is opened at the bottom of the placement rack 19, and springs 22 are connected to both sides of the inner wall of the bottom of the placement rack 19 by bolts, and filter plates 20 are connected to the tops of multiple springs 22 by bolts, and the filter plates 20 are slidably connected to the inner wall of the placement rack 19.

[0021] On the basis of the above, the conveying mechanism 4 is composed of a plurality of legs 30, two shafts 31, two rollers 32, a conveyor belt 33 and a fourth motor 34. The bottom of the plurality of legs 30 is connected to the top of the base 1 by bolts, and a rotational connection is formed between two adjacent legs 30 and the shaft 31 through a bearing. The roller 32 is fixedly sleeved on the outer wall of the shaft 31, one side of one of the legs 30 is connected to the fourth motor 34 by bolts, one end of the fourth motor 34 is fixedly connected to the shaft 31, and the conveyor belt 33 is rotationally connected to the two rollers 32.

[0022] On the basis of the above, the injection mechanism 7 includes a turntable 35, a push rod 39, a pressure plate 38 and an airbag 40, and one side of the turntable 35 is welded to one of the shaft rods 31, and a pin 36 is welded to the other side of the turntable 35 near the top, and a shaft sleeve 37 is rotatably sleeved on the outer wall of the pin 36. The two ends of the push rod 39 are respectively connected to the shaft sleeve 37 and the pressure plate 38 by hinges. The airbag 40 is located between the bottom of the pressure plate 38 and the top of the base 1. A spray pipe 41 is provided on one side of the airbag 40, and an exhaust valve is provided at one end of the spray pipe 41. The other end of the spray pipe 41 is located inside the etching pool 2, and the other end of the spray pipe 41 is vertically upward.

[0023] Example 2, reference Figure 1-Figure 5 , a PCB circuit board etching processing device, compared with Example 1, on the basis of Example 1, a swing mechanism 21 is arranged between the etching mechanism 5 and the etching pool 2, and the swing mechanism 21 and the etching mechanism 5 are matched.

[0024] On the basis of the above, the swing mechanism 21 is composed of a rotating rod 23, a top plate 26, a support rod 27 and a transmission assembly, and the two ends of the rotating rod 23 are rotatably connected to the two sides opposite to the placement frame 19 through bearings, the outer wall of the rotating rod 23 is provided with a protrusion 24, and the outer wall of the protrusion 24 is rotatably sleeved with a sleeve 25, the two ends of the top plate 26 are respectively connected to the sleeve 25 and the filter plate 20 through hinges, one side of the support rod 27 is connected to the inner wall of the etching pool 2 by bolts, and the support rod 27 and the rotating rod 23 are connected through a transmission assembly.

[0025] On the basis of the above, the transmission assembly is composed of a gear 28 and a rack 29, and the gear 28 is meshed with the rack 29, one side of the rack 29 is connected to the support rod 27 by bolts, and a support shaft is welded at one end of the rotating rod 23, and the gear 28 is fixedly sleeved on the outer wall of the support shaft, which can facilitate the dispersed treatment of the stacked PCB circuit boards, so as to improve the etching effect of the PCB circuit boards. When the etching of the PCB circuit boards is completed, the etching mechanism 5 will move upward. At this time, the vibration of the filter plate 20 can facilitate the discharge of the etching liquid adhering to the PCB circuit boards, so as to facilitate the drying of the PCB circuit boards, and prevent the etching liquid from adhering to the PCB circuit boards, causing the PCB circuit boards to adhere to the conveyor belt 33 due to moisture, thereby affecting the transportation of the PCB circuit boards.

[0026] In summary, with the aid of the above technical solution of the present invention: when etching the PCB, the PCB is placed inside the etching mechanism 5. At this time, the etching mechanism 5 is started, and the etching mechanism 5 drives the PCB to move downward, so that the PCB is located inside the etching pool 2, and the etching liquid immerses the PCB, so that the PCB is etched by the etching liquid. The rotating rod 23 is rotated by the engagement between the gear 28 and the rack 29. At this time, the protrusion 24 rotates synchronously with the rotation of the rotating rod 23, and the top plate 26 drives the filter plate 20 to swing back and forth up and down under the action of the sleeve 25 and the protrusion 24, so that The up and down reciprocating swing of the filter plate 20 can facilitate the dispersion treatment of the stacked PCB circuit boards, so as to improve the etching effect of the PCB circuit boards. When the etching of the PCB circuit boards is completed, the etching mechanism 5 will move upward. At this time, the vibration of the filter plate 20 can facilitate the discharge of the etching liquid adhering to the PCB circuit boards, so as to dry the PCB circuit boards and prevent the etching liquid from adhering to the PCB circuit boards, causing the PCB circuit boards to adhere to the conveyor belt 33 due to moisture, thereby affecting the transportation of the PCB circuit boards. During this period, the conveying mechanism 4 is started to convey the etched PCB circuit boards at any time. During this period, the turntable 35 will be moved along with the rotation of the conveying mechanism 4. When the rotating disk 35 rotates, the pin shaft 36 will rotate about the center of the circle of the rotating disk 35. At this time, the push rod 39 will drive the pressing plate 38 to swing back and forth up and down under the action of the pin shaft 36 and the shaft sleeve 37. When the pressing plate 38 swings back and forth up and down, it will squeeze the air bag 40. At this time, the gas inside the air bag 40 will be ejected through the injection pipe 41 after being squeezed. Since one end of the injection pipe 41 is vertically upward, the injected airflow will flow from bottom to top. At this time, the etching liquid will produce ripples from top to bottom under the action of the airflow, and the PCB circuit board will shake under the action of the etching liquid ripples, so that the overlapping PCB circuit boards are dispersed, so as to improve the etching efficiency of the PCB circuit board. The effect is to prevent the overlapping parts of the circuit boards from being unable to be etched due to the overlapping of multiple circuit boards, thereby affecting the etching process of the circuit boards. Since an exhaust valve is provided at one end of the injection pipe 41, the etching liquid cannot enter the interior of the injection pipe 41 through the exhaust valve, thereby avoiding the etching liquid from affecting the etching of the PCB circuit board. After the etching is completed, the etching mechanism 5 is started. At this time, the etching mechanism 5 will drive the circuit board to move upward. After the ascent is completed, the moving mechanism 6 is started. The moving mechanism 6 will drive the circuit board to move to one side. The third motor 17 is started. The third motor 17 will drive the placement rack 19 to tilt, thereby transporting the circuit board from the inside of the placement rack 19 to the conveying mechanism 4.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCB circuit board etching processing device, comprising a base (1), wherein one side of the top of the base (1) is connected to an etching pool (2) by bolts, and one side of the etching pool (2) is provided with a drainage port, the inner wall of the drainage port is provided with a drainage pipe (3), and one end of the drainage pipe (3) is provided with a seal, characterized in that: A conveying mechanism (4) is provided on one side of the top of the base (1), and the conveying mechanism (4) is located on one side of the etching pool (2); a moving mechanism (6) is provided on one side of the top of the base (1), and an etching mechanism (5) is provided on the top of the moving mechanism (6); and a spraying mechanism (7) is provided between one side of the conveying mechanism (4) and the etching pool (2).

2. A PCB circuit board etching processing device according to claim 1, characterized in that: The moving mechanism (6) comprises a moving rail (8), a first screw rod (9), a first motor (10) and a moving block, wherein the bottom of the moving rail (8) is connected to the top of the base (1) by bolts, the two ends of the first screw rod (9) are rotationally connected to the two opposite sides of the moving rail (8) by bearings, the moving block is slidably connected to the inner wall of the moving rail (8), a threaded hole is formed through one side of the moving block, the threaded hole is threadedly connected to the first screw rod (9), one side of the moving rail (8) is connected to the first motor (10) by bolts, and one end of the first motor (10) is fixedly connected to one end of the first screw rod (9).

3. A PCB circuit board etching processing device according to claim 2, characterized in that: The etching mechanism (5) comprises a support seat (11), a second screw rod (14), a second motor (15), a third motor (17) and a placement frame (19), wherein the bottom of the support seat (11) is fixedly connected to the top of the moving block, a connection port (12) is provided through one side of the support seat (11) near the top, two opposite sides of the connection port (12) are rotatably connected to the second screw rod (14) via bearings, a connection block (13) is slidably connected to the inner wall of the connection port (12), and a threaded hole is provided through the top of the connection block (13). , the threaded hole is threadedly connected to the second screw rod (14), the top of the support seat (11) is connected to the second motor (15) by bolts, one end of the second motor (15) is fixedly connected to the top of the second screw rod (14), one side of the connecting block (13) is connected to the support plate (16) by bolts, one side of the support plate (16) is fixedly connected to the third motor (17) by bolts, one end of the third motor (17) is connected to the support rod (18) by bolts, and the bottom of the support rod (18) is connected to one side of the top of the placement frame (19) by bolts.

4. A PCB circuit board etching processing device according to claim 3, characterized in that: The bottom of the placement rack (19) is provided with a through opening, and springs (22) are connected to both sides of the inner wall of the bottom of the placement rack (19) via bolts, and filter plates (20) are connected between the tops of the plurality of springs (22) via bolts, and the filter plates (20) are slidably connected to the inner wall of the placement rack (19).

5. A PCB circuit board etching processing device according to claim 4, characterized in that: The conveying mechanism (4) is composed of a plurality of legs (30), two shafts (31), two rollers (32), a conveyor belt (33) and a fourth motor (34); the bottoms of the plurality of legs (30) are connected to the top of the base (1) by bolts; two adjacent legs (30) are rotationally connected to the shaft (31) by bearings; the rollers (32) are fixedly sleeved on the outer wall of the shaft (31); one side of one of the legs (30) is connected to the fourth motor (34) by bolts; one end of the fourth motor (34) is fixedly connected to the shaft (31); and the conveyor belt (33) is rotationally connected to the two rollers (32).

6. A PCB circuit board etching processing device according to claim 5, characterized in that: The injection mechanism (7) comprises a rotating disk (35), a push rod (39), a pressing plate (38) and an air bag (40), and one side of the rotating disk (35) is welded to one of the shaft rods (31), a pin shaft (36) is welded to the other side of the rotating disk (35) near the top, a shaft sleeve (37) is rotatably sleeved on the outer wall of the pin shaft (36), two ends of the push rod (39) are respectively connected to the shaft sleeve (37) and the pressing plate (38) by hinges, the air bag (40) is located between the bottom of the pressing plate (38) and the top of the base (1), a spray pipe (41) is provided on one side of the air bag (40), one end of the spray pipe (41) is provided with an exhaust valve, the other end of the spray pipe (41) is located inside the etching pool (2), and the other end of the spray pipe (41) is arranged vertically upward.

7. A PCB circuit board etching processing device according to claim 4, characterized in that: A swing mechanism (21) is provided between the etching mechanism (5) and the etching pool (2), and the swing mechanism (21) and the etching mechanism (5) are matched with each other.

8. A PCB circuit board etching processing device according to claim 7, characterized in that: The swing mechanism (21) is composed of a rotating rod (23), a top plate (26), a support rod (27) and a transmission assembly, and the two ends of the rotating rod (23) are rotatably connected to the two sides of the placement frame (19) opposite to each other through bearings, the outer wall of the rotating rod (23) is provided with a protrusion (24), and the outer wall of the protrusion (24) is rotatably sleeved with a sleeve (25), the two ends of the top plate (26) are respectively connected to the sleeve (25) and the filter plate (20) through hinges, one side of the support rod (27) is connected to the inner wall of the etching pool (2) through bolts, and the support rod (27) and the rotating rod (23) are connected through the transmission assembly.

9. A PCB circuit board etching processing device according to claim 8, characterized in that: The transmission assembly is composed of a gear (28) and a rack (29), and the gear (28) is meshed with the rack (29). One side of the rack (29) is connected to the support rod (27) by bolts. A support shaft is welded to one end of the rotating rod (23), and the gear (28) is fixedly sleeved on the outer wall of the support shaft.

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