An etching machine and a processing method for integrated circuit board processing

Abstract

The present invention relates to the technical field of integrated circuit board processing, and specifically relates to an etching machine and a processing method for integrated circuit board processing, including a machine body, an observation window and a baffle. The observation window is hinged to the front of the machine body. The number of baffles is two, and they are movably installed on both sides of the machine body. A conveying mechanism is arranged through the middle of the machine body. A conveying wheel is arranged on the conveying mechanism. A clamping assembly is arranged above the conveying mechanism. For this etching machine and processing method for integrated circuit board processing, through the rigid clamping module and the flexible clamping module in the clamping assembly, it is possible to perform different types of clamping on rigid integrated circuit boards and flexible integrated circuit boards, avoiding mechanical damage to flexible integrated circuit boards. And when cooperating with the flushing assembly, the flexible clamping module can drive the mesh plate to shunt the flushing etching solution, reducing its impact on the flexible integrated circuit board and further protecting the flexible integrated circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit board processing, and specifically relates to an etching machine and a processing method for integrated circuit board processing. Background Technique

[0002] After the initial processing of the integrated circuit board, circuits need to be formed through etching. Common etching techniques are divided into wet etching and dry etching. Among them, wet etching is to remove the unprotected part of the circuit board surface through the etching solution, while dry etching is to remove the unnecessary materials on the circuit board surface through physical sputtering.

[0003] In wet etching, the circuit board needs to be immersed in the etching solution or etched by spraying the etching solution. However, with the development of technology, the folding screen technology has gradually emerged in people's vision. In the etching of flexible integrated circuit boards adapted to it, since they are made of flexible materials, the soaking method is usually used for etching operations. However, when fixing, the clamping requirements for them are different from those of rigid circuit boards. If the same clamping method is used, it is easy to cause mechanical damage to the flexible integrated circuit board. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an etching machine and a processing method for integrated circuit board processing, which solve the problems raised in the above background technique.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An etching machine for integrated circuit board processing includes a machine body, an observation window, and a baffle. The observation window is hinged to the front of the machine body. The number of baffles is two, and they are movably installed on both sides of the machine body. A conveying mechanism is disposed through the middle of the machine body. A conveying wheel is provided on the conveying mechanism. A clamping assembly is disposed above the conveying mechanism. The clamping assembly includes a rigid clamping module and a flexible clamping module;

[0006] Among them, the rigid clamping module includes a bracket. A conveying groove adapted to the conveying wheel on the conveying mechanism is opened in the middle of the bracket. Installation grooves are opened at both ends of the conveying groove;

[0007] A first electric push rod is fixedly installed in the installation groove. A driving arm is movably installed on the output shaft of the first electric push rod. A clamping member is movably installed at the end of the driving arm away from the first electric push rod. The clamping member is movably installed in the installation groove of the conveying mechanism;

[0008] The clamping member is in an inverted L shape, and an inflation space is opened at the upper end.

[0009] Optionally, the flexible clamping module includes an airbag fixedly connected to the bottom of the clamping member, and the airbag is in communication with the inflation space. A first piston is movably installed in the inflation space. A return spring is fixedly connected to the bottom of the first piston, and the end of the return spring away from the first piston is fixedly connected to the bottom of the inflation space;

[0010] A plug rod is fixedly installed on the top of the first piston, and the plug rod penetrates and extends to the outside of the clamping member. First fixing frames are fixedly installed on the upper surfaces of both ends of the clamping member. A second electric push rod is fixedly installed on the first fixing frame, and the output shaft of the second electric push rod is directly above the plug rod;

[0011] A slide rail is fixedly installed between both ends of the clamping member. A slider is fixedly installed on the upper surface of the clamping member, and the slider is movably connected to the slide rail. A first hydraulic cylinder is fixedly installed in the middle of the upper surface of the slide rail, and the first hydraulic cylinder is fixedly installed on the top of the inner cavity of the machine body.

[0012] Optionally, a stirring assembly is arranged in the inner cavity of the machine body. The stirring assembly includes a second hydraulic cylinder fixedly installed on the top of the machine body. A second fixing frame is fixedly installed on the output shaft of the second hydraulic cylinder. Scrapers are fixedly installed on the four sides of the second fixing frame;

[0013] Fixing blocks are fixedly installed on the left and right sides of the bottom of the second fixing frame. A fixing plate is fixedly installed at the end of the fixing block away from the second fixing frame. A connecting column is fixedly installed at the bottom of the fixing plate. A stirring plate is fixedly installed at the bottom of the connecting column.

[0014] Optionally, a cleaning box is rotatably connected to one side of the bottom of the fixing plate close to the inner cavity wall of the machine body through a torsion spring. A plug cover is clamped on the front of the cleaning box. A filtering groove is formed on the side of the cleaning box away from the inner cavity wall of the machine body. The filtering groove is conical, and the tip side faces the inner cavity of the cleaning box;

[0015] A touch plate is fixedly installed on the outer surface of the connecting column. The touch plate is on one side of the cleaning box and is in movable contact with the cleaning box.

[0016] Optionally, a flushing assembly is arranged on the machine body. The flushing assembly includes a filtering box fixedly installed on the back of the machine body. A pump pipe is fixedly installed in the inner cavity of the machine body. The end of the pump pipe away from the filtering box is fixedly connected to the inner cavity of the machine body;

[0017] A third electric push rod is fixedly installed on the top of the filtering box. A second piston is fixedly installed on the output shaft of the third electric push rod. The second piston is movably installed in the inner cavity of the filtering box. A spray head is fixedly installed on one side of the filtering box. The spray port of the spray head is in the inner cavity of the machine body, and the spray port is inclined downward and arranged in an outward V shape.

[0018] Optionally, a driving member is fixedly installed on the output shaft of the second electric push rod. The two sides of the slide rail are rotatably connected with a net plate through a torsion spring. The driving member is triangular and is located between the two net plates.

[0019] Optionally, the observation window is made of transparent tempered glass, and a sealing ring is arranged at the edge.

[0020] Optionally, the conveying mechanism is bent, and braking rubber sheets are arranged on the surfaces of the conveying wheels at the inclined part. The baffle is located above the conveying mechanism.

[0021] Optionally, when the second electric push rod is not driven, there is a distance between the bottom of its output shaft and the top of the plug rod.

[0022] A processing method for an etching machine for integrated circuit board processing, using the etching machine for integrated circuit board processing as described above, includes the following steps:

[0023] S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism feeds it into the inner cavity of the machine body, start the first electric push rod to drive the clamping member to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to place the air bag above the flexible circuit board and then start the second electric push rod to drive the plug rod to inflate the air bag, so that the air bag expands and presses against the flexible circuit board to complete the clamping.

[0024] S2: After the clamping is completed, it is necessary to start the second hydraulic cylinder to drive the stirring plate to descend and make it reciprocate up and down to stir the etching solution, improve the fluidity of the etching solution, and make the etching process more uniform. When the scraping plate reciprocates up and down, the impurity removal box will follow and reciprocate up and down. When it moves downward, it will contact the etching solution and deflect under the action of the liquid pressure. At the same time, the etching solution will enter the impurity removal box and bring in the precipitate generated by etching. The conical design of the filter tank is used to achieve the purpose of impurity removal.

[0025] S3: During the immersion etching, there is still sediment on the surface of the circuit board, which affects the etching operation. By starting the third electric push rod to pump the etching solution into the filter tank for filtration, and then starting the third electric push rod to make the filtered etching solution spray onto the surface of the circuit board through the nozzle, the surface can be cleaned of impurities and the etching effect can be improved. When the etching operation is completed, it is necessary to start the conveying mechanism to export the circuit board from the inner cavity of the machine body.

[0026] The present invention provides an etching machine and a processing method for integrated circuit board processing, having the following beneficial effects:

[0027] 1. The etching machine and processing method for integrated circuit boards can, through the rigid clamping module and flexible clamping module in the clamping assembly, perform different types of clamping on rigid and flexible integrated circuit boards, avoiding mechanical damage to the flexible integrated circuit boards. Moreover, when cooperating with the flushing assembly, the flexible clamping module can drive the mesh plate to split the flushing etching solution, reducing its impact on the flexible integrated circuit board and further protecting the flexible integrated circuit board.

[0028] 2. The etching machine and processing method for integrated circuit boards can make the etching solution more uniform through the stirring assembly, improving the etching effect. Cooperating with the impurity removal tank can reduce the surging intensity of the etching solution in the inlet and outlet directions on both sides of the machine body, preventing the etching solution from splashing from both sides of the machine body. At the same time, during the reciprocating movement of the impurity removal tank up and down, it can remove impurities from the etching solution, and by using the flushing assembly, when removing impurities on the surface of the circuit board, it can assist the impurity removal tank in impurity collection, improving the etching effect of the etching solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Structural schematic of the present invention Figure 1 ;

[0030] Figure 2 Structural schematic of the present invention Figure 2 ;

[0031] Figure 3 Structural schematic of the present invention Figure 3 ;

[0032] Figure 4 Structural schematic of the positional relationship among the clamping assembly, stirring assembly and flushing assembly of the present invention Figure 1 ;

[0033] Figure 5 Structural schematic of the positional relationship among the clamping assembly, stirring assembly and flushing assembly of the present invention Figure 2 ;

[0034] Figure 6 Structural schematic of the clamping assembly of the present invention Figure 1 ;

[0035] Figure 7 Of the present invention Figure 6 Partial enlarged structural schematic diagram at position A in

[0036] Figure 8 Structural schematic of the clamping assembly of the present invention Figure 2 ;

[0037] Figure 9 Of the present invention Figure 7 Partial enlarged structural schematic diagram at position B in

[0038] Figure 10 Structural schematic of the clamping component of the present invention Figure 3 ;

[0039] Figure 11 Structural schematic of the stirring component of the present invention Figure 1 ;

[0040] Figure 12 Structural schematic of the stirring component of the present invention Figure 2 ;

[0041] Figure 13 Structural schematic of the impurity removal box of the present invention Figure 1 ;

[0042] Figure 14 Structural schematic of the impurity removal box of the present invention Figure 2 。

[0043] In the figure: 1, machine body; 11, observation window; 12, baffle; 2, conveying mechanism; 21, bracket; 22, conveying groove; 23, first electric push rod; 24, driving arm; 25, clamping member; 26, air bag; 27, plug rod; 28, first piston; 29, return spring; 210, first fixing frame; 211, second electric push rod; 212, slide rail; 213, slider; 214, first hydraulic cylinder; 3, second hydraulic cylinder; 31, second fixing frame; 32, scraping plate; 33, fixing block; 34, fixing plate; 35, connecting column; 36, stirring plate; 4, impurity removal box; 41, plug cover; 42, filtering groove; 43, touch plate; 5, filtering box; 51, pump pipe; 52, third electric push rod; 53, second piston; 54, spray head; 6, driving member; 61, mesh plate. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0045] Embodiment 1: Please refer to Figures 1 to 10 , the present invention provides a technical solution: An etching machine for integrated circuit board processing, including a machine body 1, an observation window 11 and a baffle 12. The observation window 11 is hinged to the front of the machine body 1. The number of baffles 12 is two and they are movably installed on both sides of the machine body 1. A conveying mechanism 2 is disposed through the middle of the machine body 1. A conveying wheel is provided on the conveying mechanism 2. A clamping component is disposed above the conveying mechanism 2. The clamping component includes a rigid clamping module and a flexible clamping module;

[0046] Among them, the rigid clamping module includes a bracket 21. A conveying groove 22 adapted to the conveying wheel on the conveying mechanism 2 is provided in the middle of the bracket 21. Installation grooves are provided at both ends of the conveying groove 22;

[0047] A first electric push rod 23 is fixedly installed in the installation groove. A driving arm 24 is movably installed on the output shaft of the first electric push rod 23. One end of the driving arm 24 away from the first electric push rod 23 is movably installed with a clamping member 25. The clamping member 25 is movably installed in the installation groove of the conveying mechanism 2;

[0048] The clamping member 25 is in an inverted L shape and has an inflation space opened at the upper end.

[0049] The flexible clamping module includes an airbag 26 fixedly connected to the bottom of the clamping member 25. The airbag 26 is communicated with the inflation space. A first piston 28 is movably installed in the inflation space. The bottom of the first piston 28 is fixedly connected with a return spring 29. One end of the return spring 29 away from the first piston 28 is fixedly connected to the bottom of the inflation space;

[0050] A plug rod 27 is fixedly installed at the top of the first piston 28, and the plug rod 27 penetrates and extends to the outside of the clamping member 25. First fixing frames 210 are fixedly installed on the upper surfaces of both ends of the clamping member 25. A second electric push rod 211 is fixedly installed on the first fixing frame 210, and the output shaft of the second electric push rod 211 is directly above the plug rod 27;

[0051] A slide rail 212 is fixedly installed between both ends of the clamping member 25. A slider 213 is fixedly installed on the upper surface of the clamping member 25, and the slider 213 is movably connected with the slide rail 212. A first hydraulic cylinder 214 is fixedly installed in the middle of the upper surface of the slide rail 212. The first hydraulic cylinder 214 is fixedly installed at the top of the inner cavity of the machine body 1;

[0052] The observation window 11 is made of transparent tempered glass and is provided with a sealing ring at the edge;

[0053] The conveying mechanism 2 is in a bent shape, and braking rubber sheets are arranged on the surfaces of the conveying wheels at the inclined part. The baffle 12 is located above the conveying mechanism 2;

[0054] When the second electric push rod 211 is not driven, there is a distance between the bottom of its output shaft and the top of the plug rod 27.

[0055] Specifically, when in use, first, the user needs to determine whether the circuit board to be etched is a rigid integrated circuit board or a flexible integrated circuit board. If it is a rigid integrated circuit board, when the conveying mechanism 2 imports the circuit board into the inner cavity of the machine body 1, it is necessary to start the first electric push rods 23 at both ends of the bracket 21 to drive the driving arms 24, so that the driving arms 24 drive the clamping members 25, and use the lower sides of the two clamping members 25 to clamp the rigid circuit board. If it is a flexible integrated circuit board, after the clamping members 25 are moved, the airbag 26 should be above the circuit board, and the lower side of the clamping member 25 does not need to contact the circuit board. Then, it is necessary to start the second electric push rod 211 to drive the plug rod 27, so that the plug rod 27 drives the first piston 28 to move downward, and introduce the gas in the inflation space into the airbag 26, so that the airbag 26 expands and presses against the circuit board to complete the elastic clamping of the circuit board. Through different clamping methods, the present invention can adapt to circuit boards of different properties and avoid mechanical damage to the circuit board during clamping;

[0056] Among them, the conveying mechanism 2 is bent, which can make the liquid level of the etching solution lower than the inlets and outlets on both sides of the machine body 1, and brake rubber sheets are arranged on the surface of the conveying wheels at its inclined positions to avoid the problems of the circuit board slipping and being difficult to export during conveying.

[0057] Embodiment 2: Please refer to Figure 3 , Figure 4 , Figure 11 , Figure 12 , Figure 13 and Figure 14 , a stirring assembly is arranged in the inner cavity of the machine body 1. The stirring assembly includes a second hydraulic cylinder 3 fixedly installed on the top of the machine body 1. A second fixing frame 31 is fixedly installed on the output shaft of the second hydraulic cylinder 3. Scraping plates 32 are fixedly installed on the four sides of the second fixing frame 31;

[0058] Fixing blocks 33 are fixedly installed on the left and right sides of the bottom of the second fixing frame 31. One end of the fixing block 33 away from the second fixing frame 31 is fixedly installed with a fixing plate 34. A connecting column 35 is fixedly installed at the bottom of the fixing plate 34. A stirring plate 36 is fixedly installed at the bottom of the connecting column 35.

[0059] One side of the bottom of the fixing plate 34 close to the inner cavity wall of the machine body 1 is rotatably connected with an impurity removal box 4 through a torsion spring. A plug cover 41 is clamped on the front of the impurity removal box 4. A filtering groove 42 is opened on one side of the impurity removal box 4 away from the inner cavity wall of the machine body 1. The filtering groove 42 is conical, and the tip side faces the inner cavity of the impurity removal box 4;

[0060] A touch plate 43 is fixedly installed on the outer surface of the connecting column 35. The touch plate 43 is on one side of the impurity removal box 4 and is in movable contact with the impurity removal box 4.

[0061] On the basis of Embodiment 1, after the circuit board is clamped, it is necessary to start the second hydraulic cylinder 3 to drive the second fixing frame 31 to reciprocate up and down, so that the second fixing frame 31 drives the scraper 32 to reciprocate up and down. When the second fixing frame 31 reciprocates up and down, it will drive the fixing block 33 to reciprocate up and down, so that the fixing block 33 drives the fixing plate 34 to reciprocate up and down, so that the connecting column 35 drives the stirring plate 36 to reciprocate up and down, thereby realizing the stirring of the etching solution, making the etching operation more uniform and improving the etching effect;

[0062] When stirring the etching solution, it is easy to cause the etching solution to splash, resulting in the obscurity of the observation window 11 and making it difficult to observe the etching situation. Moreover, the surging of the etching solution is likely to splash from the inlet and outlet on both sides of the machine body 1. In the present invention, the inner cavity wall of the machine body 1 can be scraped by the scraper 32 to prevent the etching solution from splashing on the inner cavity wall of the machine body 1 and staying, which affects the utilization rate of the etching solution. At the same time, the etching solution splashed on the inner side of the observation window 11 can be scraped off to ensure the clarity of the observation field of view;

[0063] Furthermore, when the fixing plate 34 reciprocates up and down, it will drive the impurity removal box 4 to reciprocate up and down. When the impurity removal box 4 moves downward and enters the etching solution, the impurity removal box 4 will receive the pressure of the etching solution and turn towards the inner cavity wall of the machine body 1. During this process, the sediment in the etching solution will be squeezed into the inner cavity of the impurity removal box 4 through the filter slot 42 by the pressure of the liquid, achieving the purpose of impurity removal. On the other hand, the impurity removal box 4 can block the inlets and outlets on both sides of the machine body 1, reducing the surging intensity of the etching solution in the direction of the inlets and outlets on both sides of the machine body 1. Cooperating with the baffle 12 can further reduce the splashing problem of the etching solution;

[0064] By designing the filter slot 42 to be conical, the sediment can still be left in the inner cavity of the impurity removal box 4 when the etching solution flows back after the impurity removal box 4 is reset. Or an actively installed filter plate is arranged in the inner cavity of the impurity removal box 4. When the etching solution enters the impurity removal box 4, the filter plate moves towards the inner side of the impurity removal box 4 to facilitate the entry of the sediment. When the impurity removal box 4 is reset, the filter plate follows the reset to block the filter slot 42, thereby preventing the sediment from flowing back. And every time the impurity removal box 4 is reset, it will contact and collide with the touch plate 43, causing the impurity removal box 4 to vibrate, and the sediment and impurities staying on the inner cavity wall of the impurity removal box 4 can be shaken off to the bottom of the inner cavity of the impurity removal box 4, which is convenient for the user to collect.

[0065] Embodiment 3: Please refer to Figures 3 to 5 , a flushing assembly is provided on the machine body 1. The flushing assembly includes a filter box 5 fixedly installed on the back of the machine body 1, and a pump pipe 51 is fixedly installed in the inner cavity of the machine body 1. One end of the pump pipe 51 away from the filter box 5 is fixedly connected to the inner cavity of the machine body 1;

[0066] A third electric push rod 52 is fixedly installed on the top of the filter box 5. A second piston 53 is fixedly installed on the output shaft of the third electric push rod 52. The second piston 53 is movably installed in the inner cavity of the filter box 5. A spray head 54 is fixedly installed on one side of the filter box 5. The spray orifice of the spray head 54 is in the inner cavity of the machine body 1, and the spray orifice is inclined downward and arranged in an outward V shape.

[0067] A driving member 6 is fixedly installed on the output shaft of the second electric push rod 211. The two sides of the slide rail 212 are rotatably connected with a net plate 61 through torsion springs. The driving member 6 is triangular and is located between the two net plates 61.

[0068] On the basis of Embodiment 2, when the integrated circuit board in the etching operation is a rigid one, after being soaked and etched for a period of time, the corroded copper ions are likely to react with other elements, resulting in etching precipitation on the surface of the circuit board. At this time, it is necessary to start the third electric push rod 52 to drive the filter box 5 to rise, so that the pump pipe 51 pumps the etching solution into the inner cavity of the filter box 5 for filtration. Then start the first hydraulic cylinder 214 to drive the bracket 21 to rise, so that the upper surface of the rigid integrated circuit board is one to two centimeters away from the liquid level of the etching solution. Then start the third electric push rod 52 to drive the second piston 53 to move downward, and spray the filtered etching solution through the spray head 54. Through the outward V-shaped inclined design of the spray head 54, the precipitation on the surface of the rigid integrated circuit board can be sprayed away from its two sides, reducing the influence of etching precipitation. It should be noted that the time for the spray head 54 to spray the etching solution can be set when the impurity removal box 4 is just in the etching solution. At this time, the precipitation leaving the surface of the rigid integrated circuit board will move towards the direction of the impurity removal box 4, which is convenient for the impurity removal box 4 to collect the precipitation, improving the collection efficiency of the impurity removal box 4 and enhancing the etching effect of the etching solution.

[0069] When the integrated circuit board in the etching operation is a flexible one, when soaking and etching, start the first hydraulic cylinder 214 to drive it to rise to a position one to two centimeters away from the etching liquid level. In this way, after the etching solution is stirred, even if there is surging, since the flow rate of the etching solution above the flexible integrated circuit board is small, while not affecting the etching effect, it can avoid the etching solution from impacting the flexible integrated circuit board and causing damage.

[0070] When there is etching precipitation on the surface of the flexible integrated circuit board after soaking and etching for a period of time, the third electric push rod 52 is started again, and the etched solution is filtered and circulated and then sprayed out. While removing the precipitation on the flexible integrated circuit board, it assists the impurity removal box 4 to remove impurities. In this process, the flexible integrated circuit board uses a flexible clamping module. During the clamping process of the flexible clamping module, after the second electric push rod 211 is started and before driving the plug rod 27, the driving member 6 will be driven to descend first. When the driving member 6 descends, the screen plate 61 will be driven, so that the screen plate 61 changes from the vertical state to the horizontal state. In this way, when the etching solution is sprayed out by the spray head 54, the etching solution can be shunted, reducing the impact of the etching solution on the flexible integrated circuit board, and further protecting the flexible integrated circuit board while removing the precipitation.

[0071] A processing method of an etching machine for processing an integrated circuit board, using the etching machine for processing an integrated circuit board as described above, includes the following steps:

[0072] S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism 2 feeds it into the inner cavity of the machine body 1, the first electric push rod 23 is started to drive the clamping member 25 to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to make the airbag 26 be above the flexible circuit board, and then start the second electric push rod 211 to drive the plug rod 27 to inflate the airbag 26, so that the airbag 26 expands and presses against the flexible circuit board to complete the clamping;

[0073] S2: After the clamping is completed, it is necessary to start the second hydraulic cylinder 3 to drive the stirring plate 36 to descend and make it reciprocate up and down to stir the etching solution, improve the fluidity of the etching solution, and make the etching process more uniform. When the scraping plate 32 reciprocates up and down, the impurity removal box 4 will follow and reciprocate up and down. When it moves downward, it will contact the etching solution and deflect under the action of the liquid pressure. At the same time, the etching solution will enter the impurity removal box 4 and bring in the precipitation generated by etching. Using the conical design of the filter tank 42, the purpose of impurity removal is achieved;

[0074] S3: During the soaking and etching, there is still sediment on the surface of the circuit board, which affects the etching operation. The etching solution is pumped into the filter tank 5 for filtration by starting the third electric push rod 52, and then the filtered etching solution is sprayed onto the surface of the circuit board through the spray head 54 by starting the third electric push rod 52. In this way, the surface can be decontaminated and the etching effect can be improved. After the etching operation is completed, it is necessary to start the conveying mechanism 2 to export the circuit board from the inner cavity of the machine body 1.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An etching machine for integrated circuit board processing, comprising a machine body (1), an observation window (11) and baffles (12). The observation window (11) is hinged to the front of the machine body (1). The number of the baffles (12) is two, and they are movably installed on both sides of the machine body (1), and it is characterized in that: A conveying mechanism (2) is disposed through the middle of the body (1). A conveying wheel is arranged on the conveying mechanism (2). A clamping assembly is arranged above the conveying mechanism (2). The clamping assembly includes a rigid clamping module and a flexible clamping module. Among them, the rigid clamping module includes a bracket (21). A conveying groove (22) adapted to the conveying wheel on the conveying mechanism (2) is formed in the middle of the bracket (21). Installation grooves are formed in the interiors of both ends of the conveying groove (22). A first electric push rod (23) is fixedly installed in the installation groove. A driving arm (24) is movably installed on the output shaft of the first electric push rod (23). A clamping member (25) is movably installed at one end of the driving arm (24) away from the first electric push rod (23). The clamping member (25) is movably installed in the installation groove of the conveying mechanism (2). The clamping member (25) is in an inverted L shape and has an inflation space formed at its upper end. The flexible clamping module includes an airbag (26) fixedly connected to the bottom of the clamping member (25). The airbag (26) is communicated with the inflation space. A first piston (28) is movably installed in the inflation space. A return spring (29) is fixedly connected to the bottom of the first piston (28). One end of the return spring (29) away from the first piston (28) is fixedly connected to the bottom of the inflation space. A plug rod (27) is fixedly installed at the top of the first piston (28). The plug rod (27) penetrates and extends to the outside of the clamping member (25). First fixing frames (210) are fixedly installed on the upper surfaces of both ends of the clamping member (25). A second electric push rod (211) is fixedly installed on the first fixing frame (210). The output shaft of the second electric push rod (211) is directly above the plug rod (27). A slide rail (212) is fixedly installed between both ends of the clamping member (25). A slider (213) is fixedly installed on the upper surface of the clamping member (25). The slider (213) is movably connected to the slide rail (212). A first hydraulic cylinder (214) is fixedly installed in the middle of the upper surface of the slide rail (212). The first hydraulic cylinder (214) is fixedly installed at the top of the inner cavity of the body (1). A driving member (6) is fixedly installed on the output shaft of the second electric push rod (211). Net plates (61) are rotatably connected to both sides of the slide rail (212) through torsion springs. The driving member (6) is triangular and is located between the two net plates (61). When the second electric push rod (211) is not driven, there is a spacing between the bottom of its output shaft and the top of the plug rod (27).

2. An etching machine for integrated circuit board processing according to claim 1, characterized in that: A stirring assembly is arranged in the inner cavity of the body (1). The stirring assembly includes a second hydraulic cylinder (3) fixedly installed at the top of the body (1). A second fixing frame (31) is fixedly installed on the output shaft of the second hydraulic cylinder (3). Scrapers (32) are fixedly installed on the four sides of the second fixing frame (31). On both the left and right sides of the bottom of the second fixing frame (31), fixing blocks (33) are fixedly installed. One end of the fixing block (33) far from the second fixing frame (31) is fixedly installed with a fixing plate (34). At the bottom of the fixing plate (34), a connecting column (35) is fixedly installed. At the bottom of the connecting column (35), a stirring plate (36) is fixedly installed.

3. An etching machine for processing an integrated circuit board according to claim 2, characterized in that: On one side of the bottom of the fixing plate (34) close to the inner cavity wall of the machine body (1), a foreign matter removal box (4) is rotatably connected through a torsion spring. A plug cover (41) is clamped on the front of the foreign matter removal box (4). On one side of the foreign matter removal box (4) far from the inner cavity wall of the machine body (1), a filter slot (42) is opened. The filter slot (42) is conical, and the tip side faces the inner cavity of the foreign matter removal box (4); On the outer surface of the connecting column (35), a touch plate (43) is fixedly installed. The touch plate (43) is on one side of the foreign matter removal box (4) and is in movable contact with the foreign matter removal box (4).

4. An etching machine for integrated circuit board processing according to claim 1, characterized in that: A flushing assembly is provided on the machine body (1). The flushing assembly includes a filter box (5) fixedly installed on the back of the machine body (1). A pump pipe (51) is fixedly installed in the inner cavity of the machine body (1). One end of the pump pipe (51) far from the filter box (5) is fixedly connected to the inner cavity of the machine body (1); On the top of the filter box (5), a third electric push rod (52) is fixedly installed. On the output shaft of the third electric push rod (52), a second piston (53) is fixedly installed. The second piston (53) is movably installed in the inner cavity of the filter box (5). On one side of the filter box (5), a spray head (54) is fixedly installed. The spray opening of the spray head (54) is in the inner cavity of the machine body (1), and the spray opening is inclined downward and is arranged in an outward V shape.

5. An etching machine for integrated circuit board processing according to claim 1, characterized in that: The observation window (11) is made of transparent tempered glass, and a sealing ring is provided at the edge.

6. An etching machine for processing an integrated circuit board according to claim 1, characterized in that: The conveying mechanism (2) is bent, and braking rubber sheets are arranged on the surfaces of the conveying wheels at the inclined part. The baffle (12) is above the conveying mechanism (2).

7. A processing method for an etching machine used in the processing of an integrated circuit board, using an etching machine for processing an integrated circuit board as described in any one of claims 4-6, characterized in that: Including the following steps: S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism (2) sends it into the inner cavity of the machine body (1), start the first electric push rod (23) to drive the clamping member (25) to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to make the airbag (26) above the flexible circuit board and then start the second electric push rod (211) to drive the plug rod (27) to inflate the airbag (26) so that the airbag (26) expands and presses against the flexible circuit board to complete the clamping; S2: After the clamping is completed, the second hydraulic cylinder (3) needs to be started to drive the stirring plate (36) to descend and reciprocate up and down to stir the etching solution, improve the fluidity of the etching solution, and make the etching process more uniform. When the squeegee (32) reciprocates up and down, the impurity removal box (4) will follow and reciprocate up and down. When it moves downward, it will contact the etching solution and deflect under the action of the liquid pressure. At the same time, the etching solution will enter the impurity removal box (4) and bring in the precipitate generated by etching. The conical design of the filter tank (42) is used to achieve the purpose of impurity removal; S3: During the immersion etching, there is still sediment on the surface of the circuit board, which affects the etching operation. The etching solution is pumped into the filtration box (5) for filtration by starting the third electric push rod (52), and then the filtered etching solution is sprayed onto the surface of the circuit board through the nozzle (54) by starting the third electric push rod (52). In this way, impurities on its surface can be removed and the etching effect can be improved. After the etching operation is completed, the conveying mechanism (2) needs to be started to export the circuit board from the inner cavity of the machine body (1).

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