PCB etching device

Abstract

The invention discloses a PCB etching device, and relates to the technical field of PCB processing, the PCB etching device comprises an etching pool, a plurality of feeding frames are fixedly arranged above the etching pool, a bearing frame is adjustably arranged below the feeding frames, and a pneumatic clamping assembly used for limiting a circuit board is arranged in the bearing frame; collecting assemblies are symmetrically arranged on the etching pool, and the pair of collecting assemblies are symmetrically arranged in the areas of the two sides of the bearing frame; a guide assembly is arranged in an area above the etching pool; after etching is completed, the bearing frame is driven to rise again, then shunting of the circuit boards is achieved through the guiding assembly, and the circuit boards processed in the same batch are controlled to be conveyed into the collecting assembly on the same side; the problem that in the prior art, after the circuit board is etched, clamping is cancelled, the etched circuit board is collected by toppling towards any one of the left direction and the right direction through the dead weight of the circuit board, and batch operation and collection are inconvenient is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PCB processing, and particularly relates to a PCB etching device. BACKGROUND

[0002] Circuit board etching processing is a process of removing the excess copper foil on a circuit board through chemical or physical methods, so as to leave the required circuit pattern.

[0003] A kind of PCB circuit board etching processing device is disclosed in Chinese patent CN118804488B: including etching pool, the upper side of etching pool is fixed with feeding frame, the bottom of feeding frame is provided with adaptive slot, the inner part of adaptive slot is movably sleeved with clamping assembly.The application improves the etching total area, improves the etching effect, and at the same time, the clamping frame is lifted again to move the etched PCB circuit board to the position between the material guiding processing assembly and the feeding frame, and the clamping effect is cancelled, the PCB circuit board on the clamping frame loses clamping and limiting, and falls in any direction, and the material guiding processing assembly arranged on both sides is used to quickly guide the etched PCB circuit board out.

[0004] However, the prior art still has the following problems: The above device cancels clamping after etching the circuit board, and collects the etched circuit board by falling in any direction due to the weight of the circuit board, which is not convenient for collecting and processing the circuit board in batch operation because the falling direction of the circuit board is random and the collection rate of different guiding frames is different. SUMMARY

[0005] The present application aims to solve at least one of the problems in the prior art. To this end, the present application provides a PCB etching device, which solves the problem that the prior art cancels clamping after etching the circuit board, and collects the etched circuit board by falling in any direction due to the weight of the circuit board, which is not convenient for batch operation and collection.

[0006] To achieve the above-mentioned purpose, the present application provides a PCB etching device, which comprises an etching pool, a feeding frame is fixedly arranged above the etching pool, the feeding frame is provided with a plurality of feeding frames, a bearing frame is adjustably arranged below the feeding frame, a pneumatic clamping assembly for limiting the circuit board is arranged in the bearing frame; a collecting assembly is symmetrically arranged above the etching pool, a pair of collecting assemblies are symmetrically arranged on both sides of the bearing frame; a guiding assembly is arranged in the upper region of the etching pool. The guide assembly comprises a motor, an adjusting plate, and a connecting rod; the connecting rod penetrates through the adjusting plates; the output shaft of the motor is fixedly connected with the connecting rod; the side edge of the etching tank is fixedly provided with a support; the motor is fixedly arranged on the support; one side of the collecting assembly is fixedly provided with a vertical rod; the connecting rod is rotationally connected with the vertical rod; a plurality of pairs of adjusting gears are fixedly arranged on the connecting rod; an adjusting gear slot is formed in the adjusting plate; the adjusting gears are engaged with the adjusting gear slots; and a distribution plate is fixedly arranged below the adjusting plate.

[0007] As a further scheme of the present application, the upper feeding frames are fixedly connected through U-shaped connecting frames; the etching tank is fixedly provided with support frames on both sides; and the support frames are fixedly connected with the side of the upper feeding frame on which the U-shaped connecting frame is not arranged.

[0008] As a further scheme of the present application, the side edge of the etching tank is fixedly provided with a base; and a pair of electric push rods are symmetrically arranged on the base.

[0009] As a further scheme of the present application, the output shaft of the electric push rod is fixedly provided with a support rod; the support rod is fixedly provided with a communication sleeve; both sides of the bearing frame are fixedly provided with distribution pipes; a pair of the distribution pipes are in communication and fixedly provided with a shunt pipe; a second shunt is fixedly arranged between adjacent pairs of the shunt pipes; and the communication sleeve is fixedly connected with the second shunt.

[0010] As a further scheme of the present application, the communication sleeve and the shunt pipe are rigid pipes coated with an anti-corrosion coating.

[0011] As a further scheme of the present application, a gas pump is fixedly arranged on the base; a first shunt is fixedly arranged on the gas pump; a plurality of hoses are symmetrically arranged on the first shunt; and the hoses are in communication with the communication sleeve.

[0012] As a further scheme of the present application, a U-shaped communication groove is formed in the bearing frame; and the distribution pipe is in communication with the U-shaped communication groove.

[0013] As a further scheme of the present application, the pneumatic clamping assembly comprises a convex block and a spring; a limiting groove is symmetrically formed in the bearing frame; the convex block is slidingly arranged in the limiting groove; one end of the spring is fixedly connected with the convex block; and the other end of the spring is fixedly connected with the inner side wall of the U-shaped communication groove.

[0014] As a further scheme of the present application, the collecting assembly comprises a collecting frame, a protective plate, and a roller shaft; the collecting frame is fixedly arranged on both sides of the etching tank; a pair of protective plates are fixedly arranged on both sides of the collecting frame; and a plurality of roller shafts are rotationally arranged between the pair of protective plates.

[0015] As a further scheme of the present application: a pair of adjusting gears are symmetrically arranged in the adjusting plate.

[0016] Compared with the prior art, the present application has the following beneficial effects: By arranging the guide assembly, the guide assembly comprises a motor, an adjusting plate and a connecting rod; the adjusting plate is arranged at the upper end region of the edge protection plate; the connecting rod penetrates through the adjusting plates; the output shaft of the motor is fixedly connected with the connecting rod; a plurality of pairs of adjusting gears are fixedly arranged on the connecting rod; adjusting tooth grooves are arranged in the adjusting plate; and the adjusting gears are engaged with the adjusting tooth grooves. When the circuit board in the bearing frame enters the etching tank, the motor is started to drive the connecting rod to rotate, the rotation of the connecting rod drives the adjusting gears to rotate, thereby driving the adjusting plate to move, and the adjusting plate is driven to move above the bearing frame, and then the bearing frame is lifted back by the electric push rod, and is lifted back to the bottom of the bearing frame and is flush with one end of the protection plate, at this time, the distribution plate is close to the side of the circuit board, when it needs to be collected, the pneumatic clamping is cancelled, and due to the shielding of the distribution plate, the circuit board can only lean on the distribution plate or move to the other side, at this time, the motor is continuously started to drive the adjusting plate to move, and the distribution plate pushes the circuit board to fall into the collection frame on one side (here, the circuit board is pushed away from the side of the distribution plate, and when it needs to be pushed to the other side, the distribution plate is driven to move to the upper region of the circuit board when the circuit board is processed, to the region between the distribution plate and the collection frame to be collected), thereby realizing batch collection of the circuit board, and the collection rate of the collection frame on each side is controllable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The present application is a three-dimensional structure Figure 1 ; Figure 2 The present application is a state structure diagram of the bearing frame pushed to the etching tank Figure 3 The present application is a three-dimensional structure Figure 2 ; Figure 4 The present application is a sectional view structure diagram of the loading frame and the bearing frame Figure 5 The present application is an installation structure diagram of the adjusting plate Figure 6 The present application is an enlarged view of A of Figure 4 ; Figure 7 The present application is an enlarged view of B of Figure 5 .

[0018] In the diagram: 1. Etching tank; 2. Feeding frame; 3. Bearing frame; 4. Collection frame; 5. Material guiding structure; 6. Adjusting plate; 7. Bracket; 8. Motor; 9. Support frame; 10. U-shaped connecting frame; 11. Base; 12. Air pump; 13. Electric push rod; 14. Support rod; 15. First distributor; 16. Hose; 17. Connecting sleeve; 18. Second distributor; 19. Distributing pipe; 20. Distribution pipe; 21. Distribution plate; 22. Linkage rod; 23. Vertical rod; 24. U-shaped connecting groove; 25. Limiting groove; 26. Convex block; 27. Spring; 28. Adjusting gear; 29. ​​Adjusting tooth groove; 30. Protective plate; 31. Roller. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0020] like Figures 1-7 As shown, a PCB etching apparatus includes an etching pool 1, a loading frame 2 fixedly mounted above the etching pool 1, and several loading frames 2, three in this embodiment. A support frame 3 is adjustablely mounted below the loading frame 2, and a pneumatic clamping component for limiting the position of the circuit board is mounted inside the support frame 3. Collection components are symmetrically mounted on the etching pool 1, with a pair of collection components symmetrically mounted on both sides of the support frame 3. The distance between the pair of collection components is greater than the width of the support frame 3. A guide component is mounted above the etching pool 1 to control the diversion of the etched circuit boards. The support frame 3 transports the circuit boards to the etching pool 1 between the pair of collection components. The circuit board to be etched is placed into the support frame 3 through the loading frame 2, and then the pneumatic clamping component is activated to clamp the circuit board. Then, the support frame 3 is driven to bring the circuit board into the etching pool 1 for etching. The support frame 3 is driven to rise, and then the guide component diverts the circuit boards, controlling the circuit boards processed in the same batch to be transported to the collection components on the same side. The feeding frames 2 are fixedly connected by U-shaped connecting brackets 10. Support brackets 9 are fixedly installed on both sides of the etching pool 1. The support brackets 9 are fixedly connected to the side of the feeding frame 2 that is not equipped with U-shaped connecting brackets 10, thereby fixing the feeding frame 2 above the etching pool 1. The side of the etching tank 1 is fixedly provided with a base 11, a pair of electric push rods 13 are symmetrically arranged on the base 11, the output shaft of the electric push rod 13 is fixedly provided with a supporting rod 14, the supporting rod 14 is fixedly provided with a communication sleeve 17, and the two sides of the bearing frame 3 are fixedly provided with a distribution pipe 20. A pair of distribution pipes 20 are communicated and fixedly provided with a shunt pipe 19, a second shunt 18 is fixedly arranged between adjacent pairs of shunt pipes 19, the communication sleeve 17 is fixedly connected with the second shunt 18, and the communication sleeve 17 and the shunt pipe 19 are rigid pipes coated with an anti-corrosion coating; the bearing frame 3 is rigidly supported by the supporting rod 14, the communication sleeve 17, the second shunt 18 and the shunt pipe 19, and the bearing frame 3 can be driven to move up and down by starting the electric push rod 13. A gas pump 12 is fixedly arranged on the base 11, a first shunt 15 is fixedly arranged on the gas pump 12, and a hose 16 is symmetrically arranged on the first shunt 15. The hose 16 is communicated with the communication sleeve 17; the gas pump 12 is started, and the gas is pumped into the bearing frame 3 through the first shunt 15, the hose 16, the communication sleeve 17, the second shunt 18, the shunt pipe 19 and the distribution pipe 20, and then the clamping of the circuit board arranged in the bearing frame 3 is realized by the pneumatic clamping assembly in the bearing frame 3. A U-shaped communication groove 24 is arranged in the bearing frame 3, and the distribution pipe 20 is communicated with the U-shaped communication groove 24. The pneumatic clamping assembly comprises a convex block 26 and a spring 27. Limiting grooves 25 are symmetrically arranged on the bearing frame 3, the convex block 26 is slidingly arranged in the limiting groove 25, one end of the spring 27 is fixedly connected with the convex block 26, and the other end is fixedly connected with the inner side wall of the U-shaped communication groove 24. The gas is pumped into the U-shaped communication groove 24 through the distribution pipe 20, the gas pushes the convex block 26 to slide out along the limiting groove 25, and the clamping of the circuit board in the bearing frame 3 is realized. The collecting assembly comprises a collecting frame 4, a protection plate 30 and a roller shaft 31. The collecting frame 4 is fixedly arranged on the two sides of the etching tank 1, a pair of protection plates 30 are fixedly arranged on the two sides of the collecting frame 4, and a plurality of roller shafts 31 are rotatably arranged between the pair of protection plates 30. The bearing frame 3 is lifted to be flush with the upper end of the protection plate 30 at the bottom, the pneumatic clamping of the circuit board is released, the circuit board falls onto the roller shaft 31 on the left side or the right side by gravity, and then falls into the collecting frame 4 through the transmission of the roller shaft 31. The guide assembly is used to realize the shunting of the circuit board after etching processing, control a row of circuit boards processed at the same time, and fall into the same side collection frame 4. The guide assembly includes a motor 8, an adjusting plate 6, and a connecting rod 22. The adjusting plate 6 is arranged at the upper end area of the side protection plate 30 (which can be arranged at any side). The connecting rod 22 penetrates through a plurality of adjusting plates 6. The output shaft of the motor 8 is fixedly connected with the connecting rod 22. The side of the etching tank 1 is fixedly provided with a support 7. The motor 8 is fixedly arranged on the support 7. The side, away from the roller shaft 31, of the protection plate 30 is fixedly provided with a vertical rod 23. The connecting rod 22 is rotationally connected with the vertical rod 23. The vertical rod 23 is used to lift the connecting rod 22 and support the connecting rod 22. A plurality of pairs of adjusting gears 28 are fixedly arranged on the connecting rod 22. The adjusting plate 6 is provided with adjusting gear grooves 29. The adjusting gears 28 are engaged with the adjusting gear grooves 29. In the embodiment, a pair of adjusting gears 28 are symmetrically arranged in one adjusting plate 6. The adjusting plate 6 is fixedly provided with a distribution plate 21 below. When the circuit board in the bearing frame 3 enters the etching tank 1, the motor 8 is started to drive the connecting rod 22 to rotate. The rotation of the connecting rod 22 drives the adjusting gears 28 to rotate, thereby driving the adjusting plate 6 to move. The adjusting plate 6 is driven to move above the bearing frame 3. Then the bearing frame 3 is lifted back by the electric push rod 13. The bottom of the bearing frame 3 is flush with one end of the protection plate 30. At this time, the distribution plate 21 is close to one side of the circuit board. When the circuit board needs to be collected, the pneumatic clamping is cancelled. Due to the shielding of the distribution plate 21, the circuit board can only lean on the distribution plate 21 or move to the other side. At this time, the motor 8 is continuously started to drive the adjusting plate 6 to move, thereby driving the distribution plate 21 to push the circuit board to fall into the collection frame 4 on one side, thereby realizing the batch collection of the circuit board.

[0021] Working principle: The circuit board to be etched is placed in the bearing frame 3 through the feeding frame 2. The air pump is started to pump the gas into the U-shaped communication groove 24 through the distribution pipe 20. The gas pushes the convex block 26 to slide out along the limiting groove 25, thereby clamping the circuit board in the bearing frame 3. The motor 8 is started to drive the connecting rod 22 to rotate. The rotation of the connecting rod 22 drives the adjusting gears 28 to rotate, thereby driving the adjusting plate 6 to move. The adjusting plate 6 is driven to move above the bearing frame 3. Then the bearing frame 3 is lifted back by the electric push rod 13. The bottom of the bearing frame 3 is flush with one end of the protection plate 30. At this time, the distribution plate 21 is close to one side of the circuit board. When the circuit board needs to be collected, the pneumatic clamping is cancelled. Due to the shielding of the distribution plate 21, the circuit board can only lean on the distribution plate 21 or move to the other side. At this time, the motor 8 is continuously started to drive the adjusting plate 6 to move, thereby driving the distribution plate 21 to push the circuit board to fall into the collection frame 4 on one side, thereby realizing the batch collection of the circuit board.

[0022] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0023] The above describes one embodiment of the application in detail, but the content described is only the preferred embodiment of the application, and cannot be considered as limiting the scope of the implementation of the application. Any equivalent changes and improvements made within the scope of the application shall still belong to the patent coverage of the application.

Claims

1. A PCB etching device, comprising an etching tank (1), an upper feeding frame (2) is fixedly arranged above the etching tank (1), a plurality of upper feeding frames (2) are arranged, a bearing frame (3) is adjustably arranged below the upper feeding frame (2), a pneumatic clamping assembly for limiting the circuit board is arranged in the bearing frame (3); a collecting assembly is symmetrically arranged on the etching tank (1), and a pair of collecting assemblies are symmetrically arranged on both sides of the bearing frame (3); characterized in that, The upper area of the etching pool (1) is provided with a guide assembly; The guide assembly comprises a motor (8), an adjusting plate (6) and a connecting rod (22); the connecting rod (22) penetrates through the adjusting plates (6); the output shaft of the motor (8) is fixedly connected with the connecting rod (22); the side edge of the etching pool (1) is fixedly provided with a support (7); the motor (8) is fixedly arranged on the support (7); one side of the collecting assembly is fixedly provided with a vertical rod (23); the connecting rod (22) is rotationally connected with the vertical rod (23); a plurality of adjusting gears (28) are fixedly arranged on the connecting rod (22); an adjusting gear slot (29) is formed in the adjusting plate (6); the adjusting gears (28) are engaged with the adjusting gear slots (29); a distribution plate (21) is fixedly arranged below the adjusting plate (6).

2. The PCB etching device of claim 1, wherein, The upper feeding frames (2) are fixedly connected through U-shaped connecting frames (10); the two sides of the etching pool (1) are fixedly provided with support frames (9); the support frames (9) are fixedly connected with the sides of the upper feeding frames (2) which are not provided with the U-shaped connecting frames (10).

3. The PCB etching device of claim 1, wherein, The side edge of the etching pool (1) is fixedly provided with a base (11); a pair of electric push rods (13) are symmetrically arranged on the base (11).

4. The PCB etching device of claim 3, wherein, The output shaft of the electric push rod (13) is fixedly provided with a supporting rod (14); the supporting rod (14) is fixedly provided with a communication sleeve (17); the two sides of the bearing frame (3) are fixedly provided with distribution pipes (20); a pair of the distribution pipes (20) are in communication and fixedly provided with a shunt pipe (19); a second shunt (18) is fixedly arranged between adjacent pairs of the shunt pipes (19); the communication sleeve (17) is fixedly connected with the second shunt (18).

5. The PCB etching device of claim 4, wherein, The communication sleeve (17) and the shunt pipe (19) are rigid pipes coated with an anti-corrosion coating.

6. The PCB etching device of claim 5, wherein, The base (11) is fixedly provided with an air pump (12); the air pump (12) is fixedly provided with a first shunt (15); a pair of hoses (16) are symmetrically arranged on the first shunt (15); the hoses (16) are in communication with the communication sleeve (17).

7. The PCB etching device of claim 4, wherein, A U-shaped communication groove (24) is formed in the bearing frame (3); the distribution pipes (20) are in communication with the U-shaped communication groove (24).

8. The PCB etching device of claim 7, wherein, The pneumatic clamping assembly comprises convex blocks (26) and springs (27); limit grooves (25) are symmetrically formed in the bearing frame (3); the convex blocks (26) are slidingly arranged in the limit grooves (25); one end of the spring (27) is fixedly connected with the convex block (26); the other end is fixedly connected with the inner side wall of the U-shaped communication groove (24).

9. The PCB etching device of claim 1, wherein, The collecting assembly comprises a collecting frame (4), protective plates (30) and roller shafts (31); the collecting frame (4) is fixedly arranged on the two sides of the etching pool (1); a pair of protective plates (30) are fixedly arranged on the two sides of the collecting frame (4); a plurality of roller shafts (31) are rotationally arranged between the pair of protective plates (30).

10. The PCB etching device of claim 1, wherein, A pair of adjusting gears (28) are symmetrically arranged in one adjusting plate (6).

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