A kind of fine circuit etching equipment on the surface of aluminum circuit board

Abstract

The present invention relates to the technical field of etching fine circuits of circuit boards, and discloses a fine circuit etching device for the surface of aluminum circuit boards, comprising a housing and an etching mechanism, wherein the etching mechanism comprises a driving component, a detection component, and a spray component, wherein the driving component is fixedly installed on the inner side of the housing, and the spray component is fixedly installed on the side of the driving component close to the transport mechanism, and evenly distributed detection components are fixedly connected on both sides of the driving component and on the outside of the spray component; the spray component comprises a suction pipe, a spray pipe, a nozzle, and a suction head, and the side of the driving component close to the transport mechanism is provided with a staggered suction pipe and a spray pipe. The present invention effectively reduces the occurrence of side etching through the cooperation between the transport mechanism, the adsorption mechanism, the etching mechanism, and the drainage mechanism, and solves the problems of difficulty in manufacturing high-precision fine circuits on the surface of existing aluminum circuit boards and high scrap rate in the manufacturing process.

Description

Technical Field

[0001] The invention relates to the technical field of etching fine circuits on circuit boards, in particular to a device for etching fine circuits on the surface of aluminum circuit boards. Background Art

[0002] Aluminum circuit board surface fine line etching equipment is a key equipment used to make fine lines on the surface of aluminum circuit boards. This type of equipment usually has the characteristics of high precision, high stability and high degree of automation.

[0003] Since aluminum circuit boards are often used in high-precision electronic products, the surface circuits are usually fine circuits with high precision requirements. For the etching of its fine circuits, the existing method is mainly through chemical etching, which uses acidic or alkaline chemical liquids to react chemically with the copper exposed on the aluminum circuit board, and the fine circuits are covered with a tin protective layer. After the etching is completed, the tin protective layer is removed to obtain the fine circuit.

[0004] Then, in the existing etching process, chemical etching is performed by spraying liquid, wherein the spraying methods include horizontal spraying and vertical spraying. The vertical spraying is better than the horizontal spraying, and the vertical spraying usually does not have a "pool effect". However, both of them will still produce different degrees of side corrosion. The main reason is that the copper section after etching of both is in contact with the chemical agent for a long time, which makes it difficult to manufacture high-precision fine circuits on the surface of the aluminum circuit board, and the scrap rate in the manufacturing process is high. Summary of the invention

[0005] The purpose of the present invention is to provide a fine circuit etching device on the surface of an aluminum circuit board to solve the problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an aluminum circuit board surface fine line etching device, comprising a shell, an etching mechanism is fixedly installed on the inner side of the shell, a transport mechanism is fixedly installed on the inner side of the shell through a rectangular plate, an adsorption mechanism is movably connected to the transport mechanism, and a drainage mechanism is fixedly installed on the inner bottom of the shell;

[0007] The etching mechanism includes a driving component, a detection component, and a spray component. The driving component is fixedly installed on the inner side of the shell, the spray component is fixedly installed on the side of the driving component close to the transport mechanism, and evenly distributed detection components are fixedly connected on both sides of the driving component and on the outer side of the spray component;

[0008] The spray assembly includes a suction pipe, a spray pipe, a nozzle, and a suction head. The driving assembly is provided with a staggered suction pipe and a spray pipe on one side close to the transport mechanism. The spray pipe is connected to nozzles that are evenly distributed, and the suction pipe is connected to suction heads that are evenly distributed.

[0009] The adsorption mechanism includes an aluminum circuit board, and the aluminum circuit board is sprayed and sucked in an alternating manner through the staggeredly distributed nozzles and suction heads.

[0010] The shape of the liquid medicine sprayed outward by the nozzle is fan-shaped, and at the same time, the suction head draws the residual liquid medicine in the micro-circuit groove in the circuit board, and the circulation shape of the liquid medicine is also fan-shaped, so that the liquid medicine is concentrated from both sides of the micro-circuit groove in the circuit board to the suction head. In addition, because the nozzle and the suction head are staggered and evenly distributed in multiple groups, after multiple staggered spraying and liquid suction operations, and the aluminum circuit board and the spray assembly move towards each other, the contact time between the copper in the middle of the micro-circuit groove and the liquid medicine is increased, and the contact time between the copper on both sides of the micro-circuit groove and the liquid medicine is reduced, and the contact time between the copper in the micro-circuit groove and the liquid medicine is shortened as a whole; thereby effectively reducing the occurrence of side corrosion;

[0011] Furthermore, the transport mechanism includes a track frame, a guide rail, a chain, a sprocket, a motor 1, and a fixed frame. The track frame is arranged on the inner side of the outer shell, one side of the track frame is fixedly connected to the fixed frame, the motor 1 is fixedly mounted on the fixed frame, the four corners of the track frame are rotatably connected to sprockets, one corner of the sprocket is fixedly connected to the output end of the motor 1, the outer side of the sprocket is rotatably connected to a rectangular plate, the rectangular plate is fixedly connected to the inner side wall of the outer shell, one side of the track frame is fixedly connected to the guide rail, and the sprockets are connected by chain transmission.

[0012] Start motor 1, the output end of motor 1 drives the sprocket at one angle to rotate, and the sprocket at one angle rotates, and at the same time, through the transmission effect of the chain, drives the sprocket at the other angle to rotate synchronously, so that the chain rotates in a circular manner;

[0013] While the chain is rotating in a circular motion, the connecting plate drives the moving plate to roll on the outer side of the guide rail through the roller, so that the aluminum circuit board follows the chain to perform a circular motion.

[0014] Further, the adsorption mechanism includes a connecting plate, a roller, a moving plate, a fixed plate, a mounting frame, an air pump, a suction cup, and an aluminum circuit board. The side of the chain away from the track frame is fixedly connected to the connecting plate, the side of the connecting plate is fixedly connected to the moving plate, the moving plate is rotatably connected to rollers evenly distributed, the rollers roll on the outer side of the guide rail, the side of the moving plate away from the track frame is fixedly connected to the fixed plate, and the side of the fixed plate away from the moving plate is fixedly connected to the mounting frame;

[0015] An air pump is fixedly connected to the inner side of the mounting frame via a fixed connecting ring, and evenly distributed suction cups are fixedly mounted on the mounting frame. The air pump and the suction cups are connected via a hose, and the suction cups adsorb the aluminum circuit board.

[0016] Start the air pump to pump air into the evenly distributed suction cups through the hose, so that negative pressure is formed in the contact area between the suction cups and the aluminum circuit board, thereby firmly adsorbing the aluminum circuit board;

[0017] Furthermore, the driving assembly includes a workbench, a track plate, a second motor, a threaded rod, a sliding block, and a supporting platform. The inner side of the outer shell is fixedly connected to the workbench via a rectangular plate, the workbench is fixedly connected to the track plate on a side close to the transport mechanism, the upper end of the track plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the threaded rod, the other end of the threaded rod is rotatably connected to the inner side wall of the track plate, the track plate is slidably connected to a sliding block, the sliding block is threadedly connected to the threaded rod, and the sliding block is fixedly connected to the supporting platform on a side close to the transport mechanism.

[0018] Furthermore, the detection assembly includes a connecting rod, an electric telescopic rod, an infrared sensor, a fixed block, and a track box. Evenly distributed connecting rods are fixedly connected on both sides of the workbench and on the outside of the spray assembly. The upper end of the connecting rod is fixedly connected to the track box. The two sides of the track box are fixedly connected to the electric telescopic rod, the other end of the electric telescopic rod is fixedly connected to the fixed block, and the other end of the fixed block is fixedly connected to the infrared sensor. The two groups of infrared sensors and fixed blocks slide on the inner side of the track box.

[0019] While the aluminum circuit board is gradually sprayed and etched upward, the external control system first controls the electric telescopic rod according to the thickness of the copper plate, and then drives the infrared sensors on both sides to move in the track box, so that the ray spacing between the infrared sensors on both sides is equal to the thickness of the copper plate. The two rays correspond to the two end points of the copper plate cross section. Each fine circuit groove on the aluminum circuit board passes through multiple groups of infrared sensors in turn. When the infrared sensor rays on both sides come into contact with copper, when the infrared sensor rays on both sides come into contact with the copper on the side section of the fine circuit groove at the same time, it proves that no side corrosion occurs.

[0020] When the infrared sensor rays on both sides contact the copper on the side section of the microcircuit groove at different times, the time difference between the contacts can be used to calculate the degree of side corrosion at this time according to the running speed of the aluminum circuit board and the spray assembly, and then the external control system can adjust the suction strength of the suction head in time to control the increase or decrease of the contact time between the copper in the middle of the microcircuit groove and the liquid medicine, and the increase or decrease of the contact time between the copper on both sides of the microcircuit groove and the liquid medicine;

[0021] Furthermore, the spray assembly also includes a connecting frame, a guide pipe, and an injection pipe. The connecting frame is fixedly connected to the side of the support platform close to the transportation mechanism. The connecting frame is fixedly connected to the spray pipe and the suction pipe. The spray pipe is connected to the injection pipe, and the suction pipe is connected to the guide pipe.

[0022] Start the second motor, which drives the threaded rod to rotate, so that the threaded rod drives the sliding block to slide downward along the second motor while rotating, and then drives the spray assembly to move downward synchronously, so that the spray assembly and the aluminum circuit board move toward each other;

[0023] When the aluminum circuit board intersects with the nozzle at the bottom, the external control system starts the external liquid supply device to pass the etching liquid into the injection pipe, so that the nozzle sprays the liquid on the aluminum circuit board in a fan shape. At this time, the aluminum circuit board and the spray assembly move towards each other and proceed at the same time;

[0024] Furthermore, the drainage mechanism includes a drainage component and a gravity component. The drainage component is fixedly installed on the inner bottom of the shell, and the side of the drainage component close to the transportation mechanism is connected to the gravity component.

[0025] Furthermore, the drainage assembly includes a drainage box, a honeycomb panel, a flow channel prosthesis, and a drainage suction cup. The inner bottom of the outer shell is fixedly connected to the drainage box, the inner side of the drainage box is fixedly connected to the honeycomb panel, the upper side of the drainage box is connected to evenly distributed drainage suction cups, the inner side of the honeycomb panel is provided with a flow channel prosthesis, the inner side of the honeycomb panel is provided with a flow channel corresponding to the flow channel prosthesis, and a cavity is provided between the upper inner side of the drainage box and the drainage suction cup.

[0026] Furthermore, the gravity component includes a support frame, a motor three, a wind tube, and a blower impeller. The inner bottom side wall of the outer shell is fixedly connected to the support frame, the upper side of the support frame is fixedly connected to the motor three, the side of the support frame close to the drainage component is fixedly connected to the wind tube, the inner side of the wind tube is provided with a blower impeller, the output end of the motor three is fixedly connected to the blower impeller, the wind tube is provided with two outlets, one of the outlets is connected to the flow channel prosthesis through a straight pipe, and the other outlet corresponds to the bottom cavity inside the outer shell.

[0027] Start the motor 3, which drives the impeller to rotate, so that it generates wind from the straight pipe to the wind tube, and then evacuates the air in the guide pipe. While evacuating the air in the guide pipe, a negative pressure is formed at the suction head connected thereto, and then the shell evacuates the residual liquid sprayed in the circuit board;

[0028] Furthermore, the straight-through pipe is connected to the flow guide pipe, and the outer bottom of the shell is connected to a drainage pipe.

[0029] While the guide pipe discharges the liquid medicine through the straight pipe and the wind tube to the bottom of the inner side of the shell, the straight pipe generates suction on the honeycomb panel. Since the straight pipe is connected with the flow channel of the flow channel prosthesis opened in the honeycomb panel, according to the principle of gas flow preferentially along the low-resistance path, the honeycomb panel produces a uniformly distributed downward suction force on the drainage suction cup, and then the drainage suction cup guides the liquid medicine mist generated by the upper spray to flow downward, avoiding the mist from staying on the aluminum circuit board for a long time and having an adverse effect on the circuit etching. The waste liquid medicine at the bottom of the inner side of the shell flows to the external collection device through the discharge pipe.

[0030] Compared with the prior art, the present invention provides an aluminum circuit board surface fine line etching device, which has the following beneficial effects:

[0031] 1. The aluminum circuit board surface fine circuit etching equipment realizes the purpose of fully automated vertical chemical spray etching of aluminum circuit boards through the cooperation between the transportation mechanism, the adsorption mechanism, the etching mechanism, and the drainage mechanism, which greatly improves the etching efficiency of the aluminum circuit board fine circuits. At the same time, through multiple staggered spraying and liquid suction operations, and the aluminum circuit board and the spray assembly move toward each other, the contact time between the copper in the middle of the fine circuit groove and the liquid is increased, the contact time between the copper on both sides of the fine circuit groove and the liquid is reduced, and the contact time between the copper in the fine circuit groove and the liquid is shortened as a whole; thereby effectively reducing the occurrence of side etching, solving the problem that the copper section after etching has a long contact time with the chemical agent, thereby making it difficult to manufacture high-precision fine circuits on the surface of the aluminum circuit board and the high scrap rate in the manufacturing process.

[0032] 2. The aluminum circuit board surface fine circuit etching equipment can monitor the side corrosion degree in the aluminum circuit board fine circuit groove in real time by detecting the contact between the infrared sensors on both sides of the component and the copper on the side section of the fine circuit groove. Through the real-time side corrosion degree data feedback, the suction strength can be adjusted in time accordingly, thereby controlling the contact time between the copper in the middle of the fine circuit groove and the chemical solution, and the contact time between the copper on both sides of the fine circuit groove and the chemical solution, thereby effectively avoiding the occurrence of side corrosion.

[0033] 3. The aluminum circuit board surface fine line etching equipment can evenly guide the liquid mist generated by the spraying to flow downward through the drainage mechanism, thereby preventing the mist from staying on the aluminum circuit board for a long time and causing adverse effects on the line etching. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the housing of the present invention after being cut;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure inside the present invention;

[0037] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle;

[0038] Figure 5 It is a three-dimensional structural schematic diagram of the transportation mechanism of the present invention;

[0039] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the adsorption mechanism of the present invention;

[0040] Figure 7 It is a schematic diagram of the three-dimensional structure of the drainage mechanism of the present invention;

[0041] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the drainage component of the present invention;

[0042] Fig. 9 For the present invention Figure 8 The enlarged schematic diagram of point B in the middle;

[0043] Fig.10 It is a three-dimensional schematic diagram of the etching mechanism of the present invention;

[0044] Fig.11 It is a three-dimensional schematic diagram of the detection component of the present invention;

[0045] Fig.12 For the present invention Fig.11 The enlarged schematic diagram of the center C;

[0046] Fig.13 It is a schematic diagram of the three-dimensional structure of the spray assembly;

[0047] Fig.14 For the present invention Fig.13 The enlarged schematic diagram of point D in the middle;

[0048] Fig.15 A schematic diagram of the three-dimensional structure of the drive component.

[0049] In the figure: 1. shell; 2. transport mechanism; 21. track frame; 22. guide rail; 23. chain; 24. sprocket; 25. motor 1; 26. fixed frame; 3. adsorption mechanism; 31. connecting plate; 32. roller; 33. moving plate; 34. fixed plate; 35. mounting frame; 36. air pump; 37. suction cup; 38. aluminum circuit board; 4. etching mechanism; 41. driving component; 411. working platform; 412. track plate; 413. motor 2; 414. threaded rod; 415. sliding block; 416. bearing platform; 42. detection component; 421. connection Rod; 422, electric telescopic rod; 423, infrared sensor; 424, fixing block; 425, track box; 43, spray assembly; 431, connecting frame; 432, suction pipe; 433, spray pipe; 434, guide pipe; 435, injection pipe; 436, nozzle; 437, suction head; 5, drainage mechanism; 51, drainage assembly; 511, drainage box; 512, honeycomb board; 513, flow channel prosthesis; 514, drainage suction cup; 52, gravity assembly; 521, support frame; 522, motor three; 523, air cylinder; 524, blower impeller; 6, drain pipe. DETAILED DESCRIPTION

[0050] 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. Example

[0051] See also Figure 1-Figure 15 , an aluminum circuit board surface fine line etching device, comprising a shell 1, an etching mechanism 4 is fixedly installed on the inner side of the shell 1, a transport mechanism 2 is fixedly installed on the inner side of the shell 1 through a rectangular plate, an adsorption mechanism 3 is movably connected to the transport mechanism 2, and a drainage mechanism 5 is fixedly installed on the inner bottom of the shell 1;

[0052] The etching mechanism 4 includes a driving component 41, a detection component 42, and a spray component 43. The driving component 41 is fixedly installed on the inner side of the housing 1, and the spray component 43 is fixedly installed on the side of the driving component 41 close to the transport mechanism 2. The two sides of the driving component 41 and the outer side of the spray component 43 are fixedly connected with evenly distributed detection components 42;

[0053] The spray assembly 43 includes a suction pipe 432, a spray pipe 433, a nozzle 436, and a suction head 437. The driving assembly 41 is provided with a staggered suction pipe 432 and a spray pipe 433 on one side close to the transport mechanism 2. The spray pipe 433 is connected to a uniformly distributed nozzle 436, and the suction pipe 432 is connected to a uniformly distributed suction head 437.

[0054] The adsorption mechanism 3 includes an aluminum circuit board 38 , and the aluminum circuit board 38 is sprayed and absorbed in an alternating manner through staggeredly distributed nozzles 436 and suction heads 437 .

[0055] The shape of the liquid medicine sprayed outward by the nozzle 436 is fan-shaped, and the suction head 437 simultaneously draws the residual liquid medicine in the microcircuit groove in the circuit board, and the circulation shape of the liquid medicine is also fan-shaped, so that the liquid medicine is concentrated from both sides of the microcircuit groove in the circuit board to the suction head 437, and because the nozzle 436 and the suction head 437 are staggered and evenly distributed in multiple groups, after multiple staggered spraying and liquid suction operations, and the aluminum circuit board 38 and the spray assembly 43 move toward each other, the contact time between the copper in the middle of the microcircuit groove and the liquid medicine is increased, and the contact time between the copper on both sides of the microcircuit groove and the liquid medicine is reduced, and at the same time, the contact time between the copper in the microcircuit groove and the liquid medicine is shortened as a whole, thereby effectively reducing the occurrence of side corrosion.

[0056] Furthermore, the transport mechanism 2 includes a track frame 21, a guide rail 22, a chain 23, a sprocket 24, a motor 25, and a fixed frame 26. The track frame 21 is arranged on the inner side of the outer shell 1, and one side of the track frame 21 is fixedly connected to the fixed frame 26, and the motor 25 is fixedly installed on the fixed frame 26. The four corners of the track frame 21 are rotatably connected to the sprockets 24, and one corner of the sprocket 24 is fixedly connected to the output end of the motor 25. The outer side of the sprocket 24 is rotatably connected to a rectangular plate, and the rectangular plate is fixedly connected to the inner wall of the outer shell 1. The guide rail 22 is fixedly connected to one side of the track frame 21, and the sprockets 24 are connected to each other through the chain 23.

[0057] Start the motor 1 25, the output end of the motor 1 25 drives the sprocket 24 of one angle to rotate, and the sprocket 24 of one angle rotates, and at the same time, through the transmission effect of the chain 23, drives the sprocket 24 of the other triangle to rotate synchronously, so that the chain 23 rotates in a circular manner;

[0058] While the chain 23 is rotating in a circular motion, the connecting plate 31 drives the moving plate 33 to roll on the outer side of the guide rail 22 through the roller 32, so that the aluminum circuit board 38 follows the chain 23 to perform a circular motion;

[0059] Further, the adsorption mechanism 3 includes a connecting plate 31, a roller 32, a moving plate 33, a fixed plate 34, a mounting frame 35, an air pump 36, a suction cup 37, and an aluminum circuit board 38. The side of the chain 23 away from the track frame 21 is fixedly connected to the connecting plate 31, and the side of the connecting plate 31 is fixedly connected to the moving plate 33. The moving plate 33 is rotatably connected to rollers 32 that are evenly distributed. The rollers 32 roll on the outer side of the guide rail 22. The side of the moving plate 33 away from the track frame 21 is fixedly connected to the fixed plate 34, and the side of the fixed plate 34 away from the moving plate 33 is fixedly connected to the mounting frame 35.

[0060] An air pump 36 is fixedly connected to the inner side of the mounting frame 35 via a fixed connecting ring. Evenly distributed suction cups 37 are fixedly installed on the mounting frame 35 . The air pump 36 and the suction cups 37 are connected via a hose. The suction cups 37 adsorb the aluminum circuit board 38 .

[0061] Start the air pump 36 so that the air pump 36 can evacuate the evenly distributed suction cups 37 through the hose, so that a negative pressure is formed in the contact area between the suction cups 37 and the aluminum circuit board 38, thereby firmly adsorbing the aluminum circuit board 38;

[0062] Furthermore, the driving assembly 41 includes a workbench 411, a track plate 412, a second motor 413, a threaded rod 414, a sliding block 415, and a supporting platform 416. The inner side of the outer shell 1 is fixedly connected to the workbench 411 through a rectangular plate, the workbench 411 is fixedly connected to the track plate 412 on the side close to the transport mechanism 2, the upper end of the track plate 412 is fixedly connected to the second motor 413, the output end of the second motor 413 is fixedly connected to the threaded rod 414, the other end of the threaded rod 414 is rotatably connected to the inner side wall of the track plate 412, a sliding block 415 is slidably connected to the track plate 412, the sliding block 415 is threadedly connected to the threaded rod 414, and the sliding block 415 is fixedly connected to the supporting platform 416 on the side close to the transport mechanism 2.

[0063] Furthermore, the detection component 42 includes a connecting rod 421, an electric telescopic rod 422, an infrared sensor 423, a fixed block 424, and a track box 425. The two sides of the workbench 411 and the outer side of the spray component 43 are fixedly connected with evenly distributed connecting rods 421, the upper end of the connecting rod 421 is fixedly connected with a track box 425, the two sides of the track box 425 are fixedly connected with the electric telescopic rod 422, the other end of the electric telescopic rod 422 is fixedly connected with a fixed block 424, the other end of the fixed block 424 is fixedly connected with an infrared sensor 423, and two groups of infrared sensors 423 and fixed blocks 424 slide on the inner side of the track box 425.

[0064] While the aluminum circuit board 38 is gradually sprayed and etched upward, the external control system first controls the electric telescopic rod 422 according to the thickness of the copper plate, thereby driving the infrared sensors 423 on both sides to move in the track box 425, so that the ray spacing between the infrared sensors 423 on both sides is equal to the thickness of the copper plate, and the two rays correspond to the two end points of the copper plate cross section. Each fine circuit groove on the aluminum circuit board 38 passes through multiple groups of infrared sensors 423 in sequence. When the rays of the infrared sensors 423 on both sides come into contact with copper, when the rays of the infrared sensors 423 on both sides come into contact with the copper on the inner side section of the fine circuit groove at the same time, it is proved that no side corrosion occurs.

[0065] When the infrared sensor 423 rays on both sides do not contact the copper on the side section of the microcircuit groove at the same time, the time difference of the contact can be used to calculate the side corrosion degree at this time according to the running speed of the aluminum circuit board 38 and the spray assembly 43, and then the external control system can timely adjust the suction strength of the suction head 437 to control the increase or decrease of the contact time between the copper in the middle of the microcircuit groove and the liquid medicine, and the increase or decrease of the contact time between the copper on both sides of the microcircuit groove and the liquid medicine;

[0066] Furthermore, the spray assembly 43 also includes a connecting frame 431, a guide pipe 434, and an injection pipe 435. The connecting frame 431 is fixedly connected to the side of the support platform 416 close to the transportation mechanism 2. The connecting frame 431 is fixedly connected to the spray pipe 433 and the suction pipe 432. The spray pipe 433 is connected to the injection pipe 435, and the suction pipe 432 is connected to the guide pipe 434.

[0067] Start the second motor 413, the second motor 413 drives the threaded rod 414 to rotate, so that the threaded rod 414 drives the sliding block 415 to slide downward along the second motor 413 while rotating, and then drives the spray assembly 43 to move downward synchronously, so that the spray assembly 43 and the aluminum circuit board 38 move toward each other;

[0068] When the aluminum circuit board 38 intersects with the nozzle 436 at the bottom, the external control system starts the external liquid supply device to pass the etching liquid into the injection pipe 435, so that the nozzle 436 sprays the aluminum circuit board 38 with liquid in a fan shape. At this time, the aluminum circuit board 38 and the spray assembly 43 move towards each other and proceed at the same time;

[0069] Furthermore, the drainage mechanism 5 includes a drainage component 51 and a gravity component 52 . The drainage component 51 is fixedly installed on the inner bottom of the shell 1 , and the gravity component 52 is connected to the side of the drainage component 51 close to the transportation mechanism 2 .

[0070] Furthermore, the drainage assembly 51 includes a drainage box 511, a honeycomb panel 512, a flow channel prosthesis 513, and a drainage suction cup 514. The drainage box 511 is fixedly connected to the inner bottom of the outer shell 1, the inner side of the drainage box 511 is fixedly connected to the honeycomb panel 512, the upper side of the drainage box 511 is connected to the evenly distributed drainage suction cups 514, the inner side of the honeycomb panel 512 is provided with a flow channel corresponding to the flow channel prosthesis 513, and a cavity is provided between the upper inner side of the drainage box 511 and the drainage suction cup 514.

[0071] Furthermore, the gravity component 52 includes a support frame 521, a motor three 522, a wind tube 523, and a blower impeller 524. The support frame 521 is fixedly connected to the inner bottom side wall of the outer shell 1, the motor three 522 is fixedly connected to the upper side of the support frame 521, the side of the support frame 521 close to the drainage component 51 is fixedly connected to the wind tube 523, the inner side of the wind tube 523 is provided with a blower impeller 524, the output end of the motor three 522 is fixedly connected to the blower impeller 524, the wind tube 523 is provided with two outlets, one outlet is connected to the flow channel prosthesis 513 through a straight pipe, and the other outlet corresponds to the bottom cavity inside the outer shell 1.

[0072] The motor 3 522 is started, and the motor 3 522 drives the impeller 524 to rotate, so that it generates wind force from the straight pipe to the wind tube 523, and then the air is pumped into the guide pipe 434. While the air is pumped into the guide pipe 434, a negative pressure is formed at the suction head 437 connected thereto, and then the housing 1 pumps the residual liquid sprayed into the circuit board;

[0073] Furthermore, the straight-through pipe is connected to the flow guide pipe 434 , and the outer bottom of the shell 1 is connected to a drain pipe 6 .

[0074] While the guide tube 434 discharges the liquid medicine through the straight tube through the wind tube 523 to the inner bottom of the shell 1, the straight tube generates suction on the honeycomb panel 512. Since the straight tube is connected with the flow channel of the flow channel prosthesis 513 opened in the honeycomb panel 512, according to the principle of gas flow preferentially along the low-resistance path, the honeycomb panel 512 produces a uniformly distributed downward suction force on the drainage suction cup 514, and then the drainage suction cup 514 guides the liquid medicine mist generated by the upper spray to flow downward, thereby preventing the mist from staying on the aluminum circuit board 38 for a long time and causing adverse effects on the circuit etching. The waste liquid medicine at the inner bottom of the shell 1 flows to the external collection device through the drainage pipe 6.

[0075] The specific usage and function of this embodiment are as follows:

[0076] When in use, firstly, the aluminum circuit board that needs to be etched with high-precision fine circuits is placed on the upper suction cup 37 through an external manipulator. After the placement is completed, the external control system starts the air pump 36, so that the air pump 36 exhausts air from the evenly distributed suction cup 37 through a hose, so that a negative pressure is formed in the contact area between the suction cup 37 and the aluminum circuit board 38, thereby firmly adsorbing the aluminum circuit board 38;

[0077] After the suction cup 37 firmly adsorbs the aluminum circuit board 38, the external control system starts the motor 1 25, and the output end of the motor 1 25 drives the sprocket 24 of one corner to rotate. While the sprocket 24 of one corner rotates, it drives the sprocket 24 of the other triangle to rotate synchronously through the transmission effect of the chain 23, so that the chain 23 rotates in a circular manner;

[0078] While the chain 23 is rotating in a circular motion, the connecting plate 31 is used to drive the moving plate 33 to roll on the outer side of the guide rail 22 through the roller 32, so that the aluminum circuit board 38 is driven to follow the chain 23 to perform a circular motion. When the aluminum circuit board 38 moves to the inner side of the housing 1 and changes its angle to be transported vertically upward;

[0079] The external control system starts the second motor 413, and the second motor 413 drives the threaded rod 414 to rotate, so that the threaded rod 414 drives the sliding block 415 to slide downward along the second motor 413 while rotating, and then drives the spray assembly 43 to move downward synchronously, so that the spray assembly 43 and the aluminum circuit board 38 move toward each other;

[0080] When the aluminum circuit board 38 intersects with the nozzle 436 at the bottom, the external control system starts the external liquid supply device to pass the etching liquid into the injection pipe 435, so that the nozzle 436 sprays the aluminum circuit board 38 with liquid in a fan shape. At this time, the aluminum circuit board 38 and the spray assembly 43 move towards each other and proceed at the same time;

[0081] While spraying, the external control system starts the motor 3 522, and the motor 3 522 drives the blower impeller 524 to rotate, so that it generates wind force from the straight pipe to the wind tube 523, and then evacuates the guide pipe 434. While evacuating the guide pipe 434, a negative pressure is formed at the suction head 437 connected thereto, and then the housing 1 pumps the residual liquid sprayed on the circuit board;

[0082] Since the shape of the liquid medicine sprayed outward by the nozzle 436 is fan-shaped, and the suction head 437 draws the residual liquid medicine in the fine circuit groove in the circuit board, the circulation shape of the liquid medicine is also fan-shaped, so that the liquid medicine is concentrated from both sides of the fine circuit groove in the circuit board to the suction head 437. In addition, since the nozzles 436 and suction heads 437 are staggered and evenly distributed in multiple groups, after multiple staggered spraying and liquid suction operations, and the aluminum circuit board 38 and the spray assembly 43 move towards each other, the contact time between the copper in the middle of the fine circuit groove and the liquid medicine is increased, and the contact time between the copper on the two sides of the fine circuit groove and the liquid medicine is reduced, and at the same time, the contact time between the copper in the fine circuit groove and the liquid medicine is shortened as a whole, thereby effectively reducing the occurrence of side corrosion.

[0083] While the aluminum circuit board 38 is gradually sprayed and etched upward, the external control system first controls the electric telescopic rod 422 according to the thickness of the copper plate, thereby driving the infrared sensors 423 on both sides to move in the track box 425, so that the ray spacing between the infrared sensors 423 on both sides is equal to the thickness of the copper plate, and the two rays correspond to the two end points of the copper plate cross section. Each fine circuit groove on the aluminum circuit board 38 passes through multiple groups of infrared sensors 423 in sequence. When the rays of the infrared sensors 423 on both sides come into contact with copper, when the rays of the infrared sensors 423 on both sides come into contact with the copper on the inner side section of the fine circuit groove at the same time, it is proved that no side corrosion occurs.

[0084] When the infrared sensor 423 rays on both sides do not contact the copper on the side section of the microcircuit groove at the same time, the time difference of the contact can be used to calculate the side corrosion degree at this time according to the running speed of the aluminum circuit board 38 and the spray assembly 43, and then the external control system can timely adjust the suction strength of the suction head 437 to control the increase or decrease of the contact time between the copper in the middle of the microcircuit groove and the liquid medicine, and the increase or decrease of the contact time between the copper on both sides of the microcircuit groove and the liquid medicine;

[0085] While the guide tube 434 discharges the liquid medicine through the straight tube through the wind tube 523 to the inner bottom of the shell 1, the straight tube generates suction on the honeycomb panel 512. Since the straight tube is connected with the flow channel of the flow channel prosthesis 513 opened in the honeycomb panel 512, according to the principle of gas flow preferentially along the low-resistance path, the honeycomb panel 512 produces a uniformly distributed downward suction force on the drainage suction cup 514, and then the drainage suction cup 514 guides the liquid medicine mist generated by the upper spray to flow downward, thereby preventing the mist from staying on the aluminum circuit board 38 for a long time and causing adverse effects on the circuit etching. The waste liquid medicine at the inner bottom of the shell 1 flows to the external collection device through the drainage pipe 6.

[0086] 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 aluminum circuit board surface fine line etching device, comprising a housing (1), an etching mechanism (4) fixedly mounted on the inner side of the housing (1), characterized in that: A transport mechanism (2) is fixedly mounted on the inner side of the shell (1) via a rectangular plate, an adsorption mechanism (3) is movably connected to the transport mechanism (2), and a drainage mechanism (5) is fixedly mounted on the inner bottom of the shell (1); The etching mechanism (4) comprises a driving component (41), a detection component (42), and a spray component (43); the driving component (41) is fixedly mounted on the inner side of the housing (1); the spray component (43) is fixedly mounted on a side of the driving component (41) close to the transport mechanism (2); and evenly distributed detection components (42) are fixedly connected on both sides of the driving component (41) and on the outer side of the spray component (43); The spray assembly (43) comprises a suction pipe (432), a spray pipe (433), a nozzle (436), and a suction head (437); a side of the drive assembly (41) close to the transport mechanism (2) is provided with a staggered distribution of suction pipes (432) and spray pipes (433); the spray pipes (433) are connected to nozzles (436) that are evenly distributed; and the suction pipes (432) are connected to suction heads (437) that are evenly distributed; The adsorption mechanism (3) comprises an aluminum circuit board (38), and the aluminum circuit board (38) is sprayed and adsorbed in an interlaced manner by means of the interlacedly distributed spray heads (436) and adsorption heads (437); The driving assembly (41) comprises a working platform (411), and the inner side of the housing (1) is fixedly connected to the working platform (411) via a rectangular plate; The detection assembly (42) comprises a connecting rod (421), an electric telescopic rod (422), an infrared sensor (423), a fixed block (424), and a track box (425); the two sides of the work platform (411) and the outside of the spray assembly (43) are fixedly connected with evenly distributed connecting rods (421); the upper ends of the connecting rods (421) are fixedly connected with the track box (425); the two sides of the track box (425) are fixedly connected with the electric telescopic rod (422); the other end of the electric telescopic rod (422) is fixedly connected with the fixed block (424); the other end of the fixed block (424) is fixedly connected with the infrared sensor (423); and two groups of the infrared sensor (423) and the fixed block (424) slide on the inner side of the track box (425).

2. The aluminum circuit board surface fine line etching equipment according to claim 1, characterized in that: The transport mechanism (2) comprises a track frame (21), a guide rail (22), a chain (23), a sprocket (24), a motor (25), and a fixed frame (26). The track frame (21) is arranged inside the housing (1). One side of the track frame (21) is fixedly connected to the fixed frame (26). The motor (25) is fixedly mounted on the fixed frame (26). The four corners of the track frame (21) are rotatably connected to sprockets (24). The sprocket (24) at one corner is fixedly connected to the output end of the motor (25). The outer side of the sprocket (24) is rotatably connected to a rectangular plate. The rectangular plate is fixedly connected to the inner side wall of the housing (1). One side of the track frame (21) is fixedly connected to the guide rail (22). The sprockets (24) are connected to each other through a chain (23).

3. The aluminum circuit board surface fine line etching equipment according to claim 2, characterized in that: The adsorption mechanism (3) comprises a connecting plate (31), a roller (32), a moving plate (33), a fixed plate (34), a mounting frame (35), an air pump (36), a suction cup (37), and an aluminum circuit board (38); a side of the chain (23) away from the track frame (21) is fixedly connected to the connecting plate (31); a side of the connecting plate (31) is fixedly connected to the moving plate (33); the moving plate (33) is rotatably connected to rollers (32) evenly distributed; the rollers (32) roll on the outer side of the guide rail (22); a side of the moving plate (33) away from the track frame (21) is fixedly connected to the fixed plate (34); and a side of the fixed plate (34) away from the moving plate (33) is fixedly connected to the mounting frame (35); An air pump (36) is fixedly connected to the inner side of the mounting frame (35) via a fixed connection ring, and evenly distributed suction cups (37) are fixedly mounted on the mounting frame (35). The air pump (36) and the suction cups (37) are connected via a hose, and the suction cups (37) adsorb the aluminum circuit board (38).

4. The aluminum circuit board surface fine line etching equipment according to claim 1, characterized in that: The driving assembly (41) further comprises a track plate (412), a second motor (413), a threaded rod (414), a sliding block (415), and a bearing platform (416); the track plate (412) is fixedly connected to a side of the working platform (411) close to the transport mechanism (2); the second motor (413) is fixedly connected to the upper end of the track plate (412); the output end of the second motor (413) is fixedly connected to the threaded rod (414); the other end of the threaded rod (414) is rotatably connected to the inner side wall of the track plate (412); the sliding block (415) is slidably connected to the track plate (412); the sliding block (415) is threadedly connected to the threaded rod (414); and the bearing platform (416) is fixedly connected to a side of the sliding block (415) close to the transport mechanism (2).

5. The aluminum circuit board surface fine line etching equipment according to claim 4, characterized in that: The spray assembly (43) further comprises a connection frame (431), a flow guide pipe (434), and a liquid injection pipe (435); the connection frame (431) is fixedly connected to a side of the support platform (416) close to the transport mechanism (2); the connection frame (431) is fixedly connected to the spray pipe (433) and the suction pipe (432); the spray pipe (433) is connected to the liquid injection pipe (435), and the suction pipe (432) is connected to the flow guide pipe (434).

6. The aluminum circuit board surface fine line etching equipment according to claim 5, characterized in that: The drainage mechanism (5) comprises a drainage component (51) and a gravitational component (52); the drainage component (51) is fixedly mounted on the inner bottom of the housing (1); and the gravitational component (52) is connected to a side of the drainage component (51) close to the transport mechanism (2).

7. The aluminum circuit board surface fine line etching equipment according to claim 6, characterized in that: The drainage component (51) comprises a drainage box (511), a honeycomb panel (512), a flow channel prosthesis (513), and a drainage suction cup (514); the drainage box (511) is fixedly connected to the inner bottom of the housing (1); the honeycomb panel (512) is fixedly connected to the inner side of the drainage box (511); the upper side of the drainage box (511) is connected to evenly distributed drainage suction cups (514); the flow channel prosthesis (513) is arranged on the inner side of the honeycomb panel (512); a flow channel corresponding to the flow channel prosthesis (513) is opened on the inner side of the honeycomb panel (512); and a cavity is arranged between the upper inner side of the drainage box (511) and the drainage suction cup (514).

8. The aluminum circuit board surface fine line etching equipment according to claim 7, characterized in that: The gravitational component (52) comprises a support frame (521), a third motor (522), a wind tube (523), and a blast impeller (524); the support frame (521) is fixedly connected to the inner bottom side wall of the outer shell (1); the third motor (522) is fixedly connected to the upper side of the support frame (521); the wind tube (523) is fixedly connected to a side of the support frame (521) close to the drainage component (51); the inner side of the wind tube (523) is provided with a blast impeller (524); the output end of the third motor (522) is fixedly connected to the blast impeller (524); the wind tube (523) is provided with two outlets; one of the outlets is connected to the flow channel prosthesis (513) through a straight pipe, and the other outlet corresponds to the inner bottom cavity of the outer shell (1).

9. The aluminum circuit board surface fine line etching equipment according to claim 8, characterized in that: The straight-through pipe is connected to the flow guide pipe (434), and the outer bottom of the shell (1) is connected to a liquid discharge pipe (6).

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