Etching device for producing printed circuit board type heat exchanger core plate

Abstract

The invention provides an etching device for producing a core plate of a printed circuit board type heat exchanger, and relates to the technical field of circuit board production. The etching device for producing the core plate of the printed circuit board type heat exchanger comprises a box body, an etching pool, a transmission chain, a guide plate and a storage rack, and the storage rack comprises rolling wheels, first connecting rods, T-shaped plates, first T-shaped sliding grooves, connecting plates and side plates. A guide plate is arranged on the inner side wall of a box body, so that when a transmission chain drives a storage rack to slowly move in an etching pool, the guide plate pushes a first connecting rod to do reciprocating motion through a roller, meanwhile, the first connecting rod pushes a T-shaped plate to slide in a first T-shaped sliding groove, and the T-shaped plate drives two groups of side plates to move towards two sides through two connecting plates; therefore, a group of metal plates inserted on the storage rack are driven to move in the etching pool, the etching liquid in the etching pool is promoted to flow, the etching speed of the metal plates is increased, and the requirements of large-scale and high-efficiency production are met.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board production, in particular to an etching device for producing a core plate of a printed circuit board type heat exchanger. Background Art

[0002] The core plate of a printed circuit board heat exchanger is the core component of a printed circuit board heat exchanger. It is used for heat exchange between two fluids by precisely manufacturing tiny flow channels on the metal plate. This core plate is usually composed of multiple thin metal plates stacked together, and specific channels are etched or processed on each layer of metal plate. These channels have a sophisticated layout and design, just like the lines on a circuit board.

[0003] During the immersion etching process, the reaction between the etching solution and the metal on the surface of the core board mainly depends on natural diffusion, that is, the chemical substances in the etching solution need to diffuse to reach the surface of the circuit board to react with the metal, and the reaction products also need to diffuse away from the surface of the circuit board. The speed of this natural diffusion is relatively slow, especially when the metal layer on the surface of the circuit board is thicker or the etching pattern is more complex, which will result in a longer etching time and low production efficiency, which cannot meet the needs of large-scale and high-efficiency production.

[0004] To this end, we have developed a new etching device for the production of printed circuit board type heat exchanger core plates. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an etching device for the production of printed circuit board type heat exchanger core plates, which solves the problem that immersion etching in the prior art is time-consuming, has low production efficiency, and is difficult to meet large-scale and high-efficiency production needs.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an etching device for producing a core plate of a printed circuit board type heat exchanger, comprising a box body and a storage rack, an etching pool is fixedly installed at the bottom of the box body, a cleaning pool is fixedly installed at the bottom of the box body on one side of the etching pool, and two symmetrical guide plates are fixedly installed on the inner side wall of the box body, the contour of the guide plates is wavy, and the two guide plates are respectively located above the etching pool and the cleaning pool;

[0009] The storage rack comprises a bottom plate and a connecting plate, the top of the bottom plate is fixedly connected with two symmetrical groups of side plates, each group of side plates is distributed in a linear array, one side of the side plate is provided with a slot, the two inner side walls of the side plate are fixedly connected with two symmetrical hemispherical protrusions, the other sides of the two side plates located in the middle are fixedly connected with connecting plates, and one end of the two connecting plates is fixedly connected with a T-shaped plate;

[0010] One end of the T-shaped plate is fixedly connected to a first connecting rod that is slidably matched with the connecting plate, one end of the first connecting rod is fixedly connected to a U-shaped plate, a roller is rotatably matched between the two inner sides of the U-shaped plate, the roller is slidably matched with the guide plate, and the other end of the T-shaped plate is provided with a first sliding hole;

[0011] A first T-shaped slot is provided on one side of the connecting plate to slide with the T-shaped plate, a first plug rod is fixedly connected to an inner side surface of the connecting plate, the first plug rod slides with the first sliding hole, and a first spring is sleeved on the other end of the T-shaped plate.

[0012] Preferably, one end of the connecting plate is fixedly connected to a connecting plate, one side of the connecting plate is provided with a second T-shaped sliding groove, one end of the connecting plate is provided with a second sliding hole, and the second sliding hole passes through the connecting plate.

[0013] Preferably, a second insertion rod is slidably fitted in the second sliding hole, a second spring is provided in the second sliding hole at one end of the second insertion rod, and a trapezoidal rod is fixedly connected to a peripheral side surface of the second insertion rod.

[0014] Preferably, a square slide groove is provided on the other side of the connecting plate, and the square slide groove is connected to the second slide hole.

[0015] Preferably, a steering plate is slidably fitted in the square slide groove, a trapezoidal inclined groove slidably fitted with the trapezoidal rod is penetrated and opened on one side of the steering plate, and a pressure rod is fixedly connected to the top of the steering plate.

[0016] Preferably, a driving source is fixedly mounted on an outer side surface of the box body, and an inner side surface of the box body is rotatably matched with a plurality of sprockets, the output end of the driving source is connected to one of the sprockets, and a transmission chain is jointly sleeved on the peripheral sides of the plurality of sprockets.

[0017] Preferably, a plurality of connecting blocks are fixedly installed on the transmission chain, a second connecting rod is fixedly connected to one side of the connecting block, a chuck is fixedly connected to one end of the second connecting rod, the chuck is slidingly matched with the second T-shaped groove, a socket is opened at one end of the chuck, and the socket is plug-fitted with the second plug rod.

[0018] Preferably, two symmetrical trapezoidal guide plates are fixedly connected to the top of the box body, and the trapezoidal guide plates are slidably matched with the pressure rod.

[0019] Preferably, conveyor belts are arranged on both sides of the box body, and a roller conveyor platform is fixedly installed on an inner wall of the box body at one end of the conveyor belt.

[0020] (III) Beneficial effects

[0021] The present invention provides an etching device for producing a core plate of a printed circuit board type heat exchanger, which has the following

[0022] Beneficial effects:

[0023] 1. The etching device for producing the core plate of the printed circuit board type heat exchanger has two trapezoidal guide plates arranged on the top of the box body. When the storage rack passes through the trapezoidal guide plates, the trapezoidal guide plates push the pressure rod to move up and down, thereby making the second insertion rod slide back and forth in the second sliding hole, so as to control one end of the second insertion rod to insert into or out of the insertion hole on the chuck, thereby controlling the connection between the storage rack and the transmission chain, realizing the seamless connection between the etching device and the automated production line, and meeting the needs of large-scale and high-efficiency production.

[0024] 2. The etching device for producing the core plate of the printed circuit board type heat exchanger is provided with a guide plate on the inner wall of the box body, so that when the transmission chain moves slowly in the etching pool with the storage rack, the guide plate pushes the first connecting rod to move back and forth through the roller, and the first connecting rod pushes the T-shaped plate to slide in the first T-shaped slide groove, and the T-shaped plate drives the two groups of side plates to move to both sides through the two connecting plates, thereby driving a group of metal plates plugged into the storage rack to swim in the etching pool, promoting the flow of etching liquid in the etching pool, so that fresh etching liquid reaches the surface of the metal plate faster, and reduces the time for chemical substances to reach the surface of the metal plate. Moreover, the flowing etching liquid can quickly take away the reaction products to prevent them from accumulating on the surface of the metal plate, thereby improving the etching speed of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional schematic diagram from a first viewing angle of the present invention;

[0026] Figure 2 is a cross-sectional view from a first viewing angle of the present invention;

[0027] Figure 3 It is a cross-sectional schematic diagram from a second viewing angle of the present invention;

[0028] Figure 4 It is a cross-sectional schematic diagram from a third viewing angle of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the storage rack;

[0030] Figure 6 It is a partial cross-sectional schematic diagram of the storage rack structure;

[0031] Figure 7 It is a partial cross-sectional schematic diagram of the connection of the storage rack;

[0032] Figure 8 It is a schematic diagram of the structure of the connecting parts between the storage rack and the transmission chain.

[0033] Among them, 1. box body; 2. rack; 3. etching pool; 4. cleaning pool; 5. guide plate; 6. bottom plate; 7. connecting plate; 8. side plate; 9. slot; 10. hemispherical bump; 11. connecting plate; 12. T-shaped plate; 13. first connecting rod; 14. U-shaped plate; 15. roller; 16. first sliding hole; 17. first T-shaped sliding groove; 18. first plug rod; 19. first spring; 20. connecting plate; 21. The second T-shaped slide groove; 22, the second slide hole; 23, the second plug rod; 24, the second spring; 25, the trapezoidal rod; 26, the square slide groove; 27, the deflection plate; 28, the trapezoidal inclined groove; 29, the pressure rod; 30, the driving source; 31, the sprocket; 32, the transmission chain; 33, the connecting block; 34, the second connecting rod; 35, the chuck; 36, the socket; 37, the trapezoidal guide plate; 38, the transmission belt; 39, the roller conveyor table. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Examples, such as Figure 1 - Figure 8 As shown, an embodiment of the present invention provides an etching device for producing a core plate of a printed circuit board type heat exchanger, comprising a box body 1 and a rack 2. An etching pool 3 is fixedly installed at the bottom of the box body 1, and a cleaning pool 4 is fixedly installed at the bottom of the box body 1 on one side of the etching pool 3. After the metal plate is etched by the etching pool 3, it enters the cleaning pool 4 to clean the residual liquid attached to the metal plate.

[0036] Two symmetrical guide plates 5 are fixedly installed on the inner wall of the box body 1, and the contour of the guide plates 5 is wavy. The two guide plates 5 are respectively located above the etching pool 3 and the cleaning pool 4. The storage rack 2 includes a bottom plate 6 and a connecting plate 7. Two symmetrical groups of side plates 8 are fixedly connected to the top of the bottom plate 6. Each group of side plates 8 is distributed in a linear array. A card slot 9 is opened on one side of the side plate 8. The side plate 8 is fixedly connected with two symmetrical hemispherical protrusions 10 relative to the two inner side walls. The metal plate can be inserted between the two side plates 8, and the two sides of the metal plate are respectively inserted into the two card slots 9. By arranging the hemispherical protrusions 10 in the card slots 9, the etching of the metal plate can be prevented from being affected by the side of the metal plate being attached to the inner wall of the card slot 9.

[0037] The other sides of the two side plates 8 located in the middle are fixedly connected with a connecting plate 11, and one end of the two connecting plates 11 is fixedly connected with a T-shaped plate 12. One end of the T-shaped plate 12 is fixedly connected with a first connecting rod 13 that slides with the connecting plate 7. One end of the first connecting rod 13 is fixedly connected with a U-shaped plate 14. A roller 15 is rotatably matched between the two inner side surfaces of the U-shaped plate 14. The roller 15 slides with the guide plate 5. A first sliding hole 16 is provided at the other end of the T-shaped plate 12. A first T-shaped sliding groove 17 that slides with the T-shaped plate 12 is provided on one side of the connecting plate 7. A first plug rod 18 is fixedly connected to an inner side surface of the connecting plate 7. The first plug rod 18 slides with the first sliding hole 16. The side surface of the first plug rod 18 is located at the other end of the T-shaped plate 12 and is sleeved with a first spring 19. When the storage rack 2 is etching in the etching pool 3, the storage rack 2 should be kept moving slowly in the etching pool 3. When the roller 15 passes through the guide plate 5, the roller 15 will slide along the contour of the guide plate 5, and because the contour of the guide plate 5 is wavy, the guide plate 5 pushes the first connecting rod 13 to reciprocate through the roller 15, and at the same time, the first connecting rod 13 pushes the T-shaped plate 12 to slide in the first T-shaped slide groove 17, and intermittently compresses the first spring 19, so as to utilize the elastic force of the first spring 19 to ensure that the roller 15 fits the contour surface of the guide plate 5, and the T-shaped plate 12 drives the two groups of side plates 8 to move to both sides through the two connecting plates 11, thereby driving a group of metal plates plugged into the rack 2 to swim in the etching pool 3, thereby promoting the etching liquid in the etching pool 3 to flow, so that the fresh etching liquid reaches the surface of the metal plate faster, reducing the time for the chemical substances to reach the surface of the metal plate, and the flowing etching liquid can quickly take away the reaction products to prevent them from accumulating on the surface of the metal plate.

[0038] One end of the connecting plate 7 is fixedly connected to a connecting plate 20, and a second T-shaped slide groove 21 is provided on one side of the connecting plate 20. A second slide hole 22 is provided at one end of the connecting plate 7, and the second slide hole 22 penetrates the connecting plate 20. A second plug rod 23 is slidably matched in the second slide hole 22. A second spring 24 is provided at one end of the second plug rod 23 in the second slide hole 22. A trapezoidal rod 25 is fixedly connected to the side surface of the second plug rod 23. A square slide groove 26 is provided on the other side of the connecting plate 7. The square slide groove 26 is connected to the second slide hole 22. A steering plate 27 is slidably matched in the square slide groove 26. A trapezoidal inclined groove 28 that slides with the trapezoidal rod 25 is penetrated on one side of the steering plate 27. A pressure rod 29 is fixedly connected to the top of the steering plate 27. Two symmetrical trapezoidal guide rods are fixedly connected to the top of the box body 1. The plate 37, the trapezoidal guide plate 37 and the pressure rod 29 are slidably matched. When the storage rack 2 with the metal plate is just transported into the box body 1, the pressure rod 29 will move below the trapezoidal guide plate 37, and the pressure rod 29 will slide along the contour of the trapezoidal guide plate 37. During this sliding process, the trapezoidal guide plate 37 will first drive the pressure rod 29 to move downward, and stop moving downward after moving to the set height. When the pressure rod 29 moves downward, the pressure rod 29 will drive the steering plate 27 to move downward synchronously. When the steering plate 27 moves downward, it will drive the trapezoidal rod 25 to slide in the trapezoidal inclined groove 28, and drive the trapezoidal rod 25 to move to one side. The trapezoidal rod 25 drives the second insertion rod 23 to slide in the second sliding hole 22 and compress the second spring 24, so that the second insertion rod 23 is completely retracted into the second sliding hole 22.

[0039] A driving source 30 is fixedly installed on an outer side of the box body 1 (the driving source 30 is composed of a motor and a reducer, and the output speed of the motor is reduced by the reducer, while the output torque of the motor is increased). The inner side of the box body 1 is rotatably matched with a plurality of sprockets 31. The output end of the driving source 30 is connected to a sprocket 31. A transmission chain 32 is commonly sleeved on the side surfaces of the plurality of sprockets 31. A plurality of connecting blocks 33 are fixedly installed on the transmission chain 32. One side of the connecting block 33 is fixedly connected to a second connecting rod 34. One end of the second connecting rod 34 is fixedly connected to A chuck 35 is connected, and a sprocket 31 is driven to rotate by a driving source 30, thereby driving a transmission chain 32 to move, and the transmission chain 32 drives a connecting block 33 to move, and the connecting block 33 drives a second connecting rod 34 and a chuck 35 to move synchronously, and the chuck 35 is slidably matched with the second T-shaped slide groove 21, and a plug hole 36 is opened at one end of the chuck 35, and the plug hole 36 is plugged and matched with the second plug rod 23. Conveyor belts 38 are set on both sides of the box body 1, and a roller conveyor platform 39 is fixedly installed on the inner wall of the box body 1 at one end of a conveyor belt 38;

[0040] The connection process between the rack 2 and the transmission mechanism is as follows: first, the rack 2 with the metal plate is transported to the roller conveyor platform 39 by a conveyor belt 38. During this transportation process, the pressure rod 29 moves to the bottom of the trapezoidal guide plate 37, and the pressure rod 29 slides along the contour of one side of the trapezoidal guide plate 37 and moves downward. The pressure rod 29 drives the steering plate 27 to move downward synchronously. When the steering plate 27 moves downward, it drives the trapezoidal rod 25 to slide in the trapezoidal inclined groove 28 and drives the trapezoidal rod 25 to move to one side. The trapezoidal rod 25 drives the second insertion rod 23 to slide in the second sliding hole 22 and compresses the second spring 24, and the second insertion rod 23 is completely retracted to the second sliding hole 22. The second guide plate 22 is provided with a plurality of guide rails 29, each of which is provided with a plurality of guide rails 29 that are provided with a plurality of guide rails 29. The guide rails 29 are provided with a plurality of guide rails 29 that ...

[0041] Working principle: When a conveyor belt 38 conveys the rack 2 with metal plates to the roller conveyor platform 39, the pressure rod 29 moves to the bottom of a trapezoidal guide plate 37, and during this movement, the trapezoidal guide plate 37 pushes the pressure rod 29 to move down a distance, so that the second insertion rod 23 is completely retracted into the second slide hole 22. When the transmission chain 32 drives a chuck 35 to gradually approach the rack 2 and slide the chuck 35 into the second T-shaped slide groove 21, the transmission chain 32 can drive the rack 2 to continue to move through the chuck 35, and at the same time, the pressure rod 29 continues to move along the ladder. The contour of one side of the shaped guide plate 37 slides, so that the pressure rod 29 starts to move up, and one end of the second insertion rod 23 can slide out of the second sliding hole 22 and insert into the insertion hole 36 on the chuck 35, so that the rack 2 is firmly connected to the transmission chain 32, so that the transmission chain 32 drives the rack 2 to move into the etching pool 3, and the metal plate on the rack 2 is etched in the etching pool 3. At this time, the rack 2 should be kept moving slowly in the etching pool 3. When the roller 15 passes through the guide plate 5, the roller 15 will slide along the contour of the guide plate 5, and the guide plate 5 pushes the first A connecting rod 13 moves back and forth, and the first connecting rod 13 pushes the T-shaped plate 12 to slide back and forth in the first T-shaped slide groove 17. The T-shaped plate 12 drives the two sets of side plates 8 to move to both sides through the two connecting plates 11, thereby driving a group of metal plates plugged on the rack 2 to swim in the etching pool 3, thereby promoting the etching liquid in the etching pool 3 to flow and increase the etching speed of the metal plates. After that, the transmission chain 32 drives the rack 2 to move from the etching pool 3 to the cleaning pool 4, and after the residual liquid on the metal plate is cleaned by the cleaning pool 4, the transmission chain 32 will move with the rack 2 To another conveyor belt 38, at the same time, the pressure rod 29 will move to the bottom of another trapezoidal guide plate 37, so that one end of the second insertion rod 23 is separated from the insertion hole 36 on the chuck 35 and completely retracted into the second slide hole 22. At this time, the chuck 35 can slide out of the second T-shaped slide groove 21. Since the transmission speed of the other conveyor belt 38 is greater than that of the transmission chain 32, the other conveyor belt 38 drives the rack 2 to move faster, causing the chuck 35 to separate from the second T-shaped slide groove 21, so that the rack 2 is no longer connected with the transmission chain 32, thereby seamlessly connecting the etching device with the automated production line.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An etching device for producing a core plate of a printed circuit board type heat exchanger, comprising a box (1) and a rack (2), wherein an etching pool (3) is fixedly installed at the bottom of the box (1), and a cleaning pool (4) is fixedly installed at the bottom of the box (1) on one side of the etching pool (3), characterized in that: Two symmetrical guide plates (5) are fixedly mounted on the inner side wall of the box body (1), the contour of the guide plates (5) is wavy, and the two guide plates (5) are respectively located above the etching pool (3) and the cleaning pool (4); The storage rack (2) comprises a bottom plate (6) and a connecting plate (7); the top of the bottom plate (6) is fixedly connected with two symmetrical groups of side plates (8); each group of the side plates (8) is distributed in a linear array; one side of the side plate (8) is provided with a slot (9); the two inner side walls of the side plate (8) are fixedly connected with two symmetrical hemispherical protrusions (10); the other sides of the two side plates (8) located in the middle are fixedly connected with a connecting plate (11); one end of the two connecting plates (11) is fixedly connected with a T-shaped plate (12); One end of the T-shaped plate (12) is fixedly connected to a first connecting rod (13) that is slidably matched with the connecting plate (7); one end of the first connecting rod (13) is fixedly connected to a U-shaped plate (14); a roller (15) is rotatably matched between two inner side surfaces of the U-shaped plate (14); the roller (15) is slidably matched with the guide plate (5); and a first sliding hole (16) is provided at the other end of the T-shaped plate (12); A first T-shaped sliding groove (17) is provided on one side of the connecting plate (7) and is slidably matched with the T-shaped plate (12); a first plug rod (18) is fixedly connected to an inner side surface of the connecting plate (7); the first plug rod (18) is slidably matched with the first sliding hole (16); and a first spring (19) is sleeved and matched with the other end of the T-shaped plate (12) on the peripheral side surface of the first plug rod (18).

2. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 1, characterized in that: One end of the connecting plate (7) is fixedly connected to a connecting plate (20), one side of the connecting plate (20) is provided with a second T-shaped sliding groove (21), and one end of the connecting plate (7) is provided with a second sliding hole (22), and the second sliding hole (22) passes through the connecting plate (20).

3. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 2, characterized in that: A second insertion rod (23) is slidably fitted in the second sliding hole (22), a second spring (24) is arranged at one end of the second insertion rod (23) in the second sliding hole (22), and a trapezoidal rod (25) is fixedly connected to the side surface of the second insertion rod (23).

4. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 3 is characterized in that: A square sliding groove (26) is provided on the other side of the connecting plate (7), and the square sliding groove (26) is connected to the second sliding hole (22).

5. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 4, characterized in that: The square slide groove (26) is slidably matched with a steering plate (27), one side of the steering plate (27) is penetrated by a trapezoidal inclined groove (28) slidably matched with the trapezoidal rod (25), and the top of the steering plate (27) is fixedly connected with a pressure rod (29).

6. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 5, characterized in that: A driving source (30) is fixedly mounted on an outer side surface of the box body (1), and a plurality of sprocket wheels (31) are rotatably engaged with an inner side surface of the box body (1). The output end of the driving source (30) is connected to one of the sprocket wheels (31), and a transmission chain (32) is sleeved on the peripheral side surfaces of the plurality of sprocket wheels (31).

7. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 6, characterized in that: A plurality of connecting blocks (33) are fixedly mounted on the transmission chain (32); a second connecting rod (34) is fixedly connected to one side of the connecting block (33); a chuck (35) is fixedly connected to one end of the second connecting rod (34); the chuck (35) is slidably matched with the second T-shaped slide groove (21); a plug hole (36) is provided at one end of the chuck (35); and the plug hole (36) is plug-fitted with the second plug rod (23).

8. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 7, characterized in that: Two symmetrical trapezoidal guide plates (37) are fixedly connected to the top of the box body (1), and the trapezoidal guide plates (37) are slidably matched with the pressure rod (29).

9. The etching device for producing a core plate of a printed circuit board type heat exchanger according to claim 8, characterized in that: Conveyor belts (38) are arranged on both sides of the box body (1), and a roller conveyor platform (39) is fixedly installed at one end of the conveyor belt (38) on the inner wall of the box body (1).

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