Circuit board coating production line

Abstract

The invention provides a circuit board coating production line. The circuit board coating production line comprises a hanger conveying line, an opening and clamping feeding mechanism, an electroplating bath, a circuit board washing bath, an opening and clamping discharging mechanism and a stripping and hanging bath, the hanger conveying line comprises a hanger conveying device and a plurality of electroplating hangers. The hanger conveying device comprises a transverse moving conveying support, a transverse moving conveying system, a plurality of lifting sliding rails, a landing mechanism and a lifting mechanism. The transverse moving conveying support comprises a base, a lower-layer annular conveying track, an upper-layer annular conveying track and a hanging frame C-shaped conveying track. The transverse moving transmission system comprises an upper-layer chain and a lower-layer chain; each of the descending mechanism and the lifting mechanism comprises a butt joint rail and a lifting driving mechanism; the electroplating hanger comprises a hanger mechanism, a cross arm and a guide mechanism; the guide mechanism comprises a guide seat, a lifting guide pulley and a horizontal guide pulley; the unclamping and feeding mechanism is used for clamping the PCB on the hanging rack mechanism; and the clamp opening and discharging mechanism is used for taking down the PCB from the hanging rack mechanism, so that the production process can be simplified, the production efficiency can be improved, and the production cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of electroplating technology, and more particularly to a circuit board coating production line. Background Technology

[0002] In PCB manufacturing, electroplating is a necessary process. This electroplating process requires electroplating racks to hold the PCB and place it into the electroplating tank. After electroplating, the PCB needs to be washed, and the electroplating racks must be cleaned before reuse. Existing PCB coating production lines cannot achieve continuous processing between multiple stations; the lack of coordination between stations leads to complex production processes, low efficiency, and high costs. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a circuit board coating production line that simplifies the production process, improves production efficiency, and reduces production costs.

[0004] To solve the above-mentioned technical problems, a circuit board coating production line provided by this invention is provided, comprising a rack conveyor line, several clamping and loading mechanisms, an electroplating tank, a circuit board washing tank, several clamping and unloading mechanisms, and a stripping trough; the rack conveyor line includes a rack conveying device and multiple electroplating racks, the rack conveying device including a transverse transfer support, a transverse transfer system, a lifting slide rail assembly, a lowering mechanism, and a lifting mechanism; the transverse transfer support includes a base, a lower annular conveyor track disposed on the base, several columns disposed on the base, an upper annular conveyor track disposed between the several columns, and a rack C-shaped conveyor track disposed between the several columns, the rack C-shaped conveyor track including a first end and a second end; the transverse transfer system includes an upper chain movably disposed on the upper annular conveyor track, a lower chain movably disposed on the lower annular conveyor track, a servo motor disposed on the base, and a driving shaft and a driven shaft rotatably connected between the upper and lower annular conveyor tracks, the driving shaft and the driven shaft being connected to the upper chain The upper and lower chains are connected by sprockets; the lifting slide rail assembly includes several equally spaced lifting slide rails connected between the upper and lower chains; the lowering mechanism and the lifting mechanism both include docking rails that cooperate with the C-shaped conveying rail of the hanger, and a lifting drive mechanism set on the base to drive the docking rail to move up and down. The docking rail of the lowering mechanism can be spliced ​​with the first end, and the docking rail of the lifting mechanism can be spliced ​​with the second end; the electroplating hanger includes a hanger mechanism, a cross arm, and a guide mechanism. The guide mechanism includes a guide seat, lifting guide pulleys respectively set on the four sides of the guide seat, and a horizontal guide pulley set on one end face of the guide seat; the cross arm connects the guide seat and the hanger mechanism; the clamping and loading mechanism is used to clamp the PCB on the hanger mechanism; the clamping and unloading mechanism is used to remove the PCB from the hanger mechanism; the electroplating tank is used to perform electroplating operations on the PCB; the circuit board washing tank is used to perform water washing operations on the electroplated PCB; the stripping tank is used to perform descratching operations on the electroplating hanger to remove the plating layer attached to the electroplating hanger.

[0005] Preferably, both the clamping loading mechanism and the clamping unloading mechanism include loading and unloading stations and clamping devices. The clamping devices include a bracket, an upper front clamping mechanism, an upper rear clamping mechanism, a lower front clamping mechanism, a lower rear clamping holding mechanism, and a lower clamping lifting mechanism. The bracket includes a front gantry and a rear gantry. The upper front clamping mechanism includes several first pressing cylinders mounted on the front gantry, a first pusher seat connected between the output shafts of the several first pressing cylinders, a first shaft fixedly connected to the first pusher seat, and several first clamping rollers connected to the first shaft. The first pusher seat has two sides. All are equipped with an opening push rod; the upper rear opening mechanism includes several second pressing cylinders mounted on the rear gantry and a first push plate connected between the output shafts of the several second pressing cylinders; the lower opening lifting mechanism includes a lifting support slidably connected to the rear gantry along the Z-axis and a second lifting drive device mounted on the bracket for driving the lifting support to move up and down; the lower front opening mechanism includes several third pressing cylinders mounted on the front gantry, a second push wheel seat connected between the output shafts of the several third pressing cylinders, a second shaft fixedly connected to the second push wheel seat, and several push plates connected to the output shafts of the third pressing cylinders. The second clamping roller on the dual-axis body; the lower rear clamping holding mechanism includes a lower rear clamping mechanism and several holding components. The lower rear clamping mechanism includes a fourth push-tightening cylinder mounted on the rear gantry and a second push plate connected to the output shaft of the fourth push-tightening cylinder. The holding components include a first pneumatic gripper mounted on one side of the second push plate. Both claw arms of the first pneumatic gripper are equipped with first clamping plates. The second push plate has a clearance window corresponding to the holding components, and one of the first clamping plates extends out of the clearance window. The hanging bracket mechanism includes an upper clamping mechanism, a lower clamping mechanism, and two height adjustment mechanisms. The upper clamping mechanism includes an upper clamping mechanism. The system includes a support bracket and several first clamps arranged in parallel on the upper clamp bracket. The lower clamping mechanism includes a lower clamp bracket and several second clamps arranged in parallel on the lower clamp bracket. Several clamping slots are arranged in parallel on the lower clamp bracket. The height adjustment mechanism includes an adjusting guide post, a positioning clamp, a first positioning block fixedly connected to the upper clamp bracket, and a second positioning block fixedly connected to the lower clamp bracket. The bottom end of the adjusting guide post is fixedly connected to the second positioning block. A through hole matching the adjusting guide post is provided through the first positioning block. The adjusting guide post is movably disposed in the through hole. The positioning clamp is disposed on the upper clamp bracket and can clamp the adjusting guide post.

[0006] Preferably, the electroplating tank includes a tank body, a constant temperature system, an electroplating system, and a chemical solution circulation system; the constant temperature system includes a temperature sensor, a cooling coil, and a heating coil installed in the tank body; the electroplating system includes a negative conductive copper busbar installed on the tank body and two anode titanium mesh groups respectively installed on opposite sides of the tank body, the anode titanium mesh groups including a positive conductive copper busbar and several titanium meshes arranged in parallel on the side wall of the tank body and electrically connected to the positive conductive copper busbar; the chemical solution circulation system includes a chemical supply pipe installed at the bottom of the tank body, a chemical solution input interface and a chemical solution output interface installed on the tank body, the chemical solution input interface communicating with the chemical supply pipe, the chemical supply pipe having outlet holes distributed thereon, and the chemical solution output interface communicating with the interior of the tank body; a cross arm is fixedly connected between the guide seat and the upper clamp bracket, the bottom of the cross arm is provided with a conductive copper head, and the bottom of the conductive copper head is provided with a contact slot matching the negative conductive copper busbar.

[0007] Preferably, the circuit board washing tank includes a first main washing tank and a water storage tank. The first main washing tank has several first partitions arranged side-by-side, dividing the tank into several washing compartments. Hanging rack channels are provided on both end walls and the first partitions of the first main washing tank. Sealing soft rubber plates are provided on both sides of each hanging rack channel, and the two sealing soft rubber plates are joined together to close the hanging rack channel. The water storage tank has several second partitions arranged side-by-side, dividing the tank into several water storage troughs. A spray system is provided in each washing compartment, including a top spray system and a side spray system. The top spray system includes a water collection trough at the bottom of the washing compartment, two symmetrically arranged top spray pipe assemblies, and a top spray input connector connected to the water collection trough. The top spray pipe assemblies include a vertical water supply connected to the water collection trough. The system includes a horizontal top spray pipe connected to one end of a vertical water supply pipe, with first spray holes evenly distributed on the horizontal top spray pipe; a side spray system including a side spray input connector located at the bottom of the main washing tank, a first diversion pipe connected to the side spray input connector, two symmetrically arranged side spray pipe groups, each side spray pipe group including a second diversion pipe connected to one end of the first diversion pipe, and several parallel vertical side spray pipes connected to the second diversion pipe, with nozzles evenly distributed on the vertical side spray pipes and connected to the vertical side spray pipes; a water circulation system is installed on the water storage tank, including a water tank input connector and a water tank output connector connected to the water storage tank, a drain connector connected to the bottom of the washing room, and a circulation pump; the water tank output connector is connected to the input end of the circulation pump, the top spray input connector and the side spray input connector are connected to the output end of the circulation pump, and the drain connector is connected to the water tank input connector.

[0008] Preferably, the stripping tank includes a stripping system, a washing system, and a drying system; the stripping system includes a main stripping tank, a stripping storage tank, and a stripping spray circulation mechanism. The stripping spray circulation mechanism includes two stripping side spray pipes symmetrically arranged on both sides of the main stripping tank, a first storage tank located at the bottom of the main stripping tank, several first main tank inlet connectors connected to the bottom of the first storage tank, several first main tank outlet connectors connected to the bottom of the main stripping tank, several first return connectors, a first pump, a first water supply pipe, and a first overflow pipe. The first return connectors communicate with the interior of the stripping storage tank, and the input end of the first pump is connected to the stripping storage tank. The tank is internally interconnected. The output end of the first pump is connected to the stripping side spray pipe and the first main tank input connector. The stripping side spray pipe has first spray holes distributed on it. The first main tank output connector is connected to the first return connector. The water washing system includes a second water washing main tank, a water washing storage tank, and a water washing spray circulation mechanism. The water washing spray circulation mechanism includes two water washing side spray pipes symmetrically arranged on both sides of the second water washing main tank, a second storage tank located at the bottom of the second water washing main tank, several second main tank input connectors connected to the bottom of the second storage tank, several second main tank output connectors connected to the bottom of the second water washing main tank, and several second return connectors. The system includes a second pump, a second water supply pipe, a second overflow pipe, and a second return connector connected to the interior of the water washing storage tank. The input end of the second pump is connected to the interior of the water washing storage tank, and the output end of the second pump is connected to the water washing side spray pipe and the second main tank input connector. The water washing side spray pipe has second spray holes distributed on it. The second main tank output connector is connected to the second return connector. The drying system includes a drying main tank, two upper air blowing assemblies symmetrically arranged on the two side walls of the drying main tank, two lower air blowing assemblies symmetrically arranged on the two side walls of the drying main tank, and two air inlets respectively arranged on both sides of the drying main tank. The component and the lower air blowing assembly both include an air collecting pipe and several air blowing nozzles evenly distributed on the air collecting pipe and connected to the air collecting pipe. The air collecting pipes of the upper air blowing assembly and the lower air blowing assembly on the same side are connected to one of the air inlet connectors. The main peeling tank, the second water washing main tank, and the drying main tank are spliced ​​together. The two end walls of the main peeling tank, the second water washing main tank, the drying main tank, the first liquid storage tank, and the second liquid storage tank are all provided with through-plate windows to allow the electroplating rack to pass through. Several sealing curtains are arranged side by side on the two side walls of the through-plate windows of the first liquid storage tank and the second liquid storage tank. When the several sealing curtains are spliced ​​together, the through-plate windows can be closed.

[0009] Preferably, the first positioning block is provided with a clearance groove communicating with the through hole, and the positioning clamp includes a base set on the upper clamping bracket, a clamping arm hinged on the base, a spring abutting between the upper clamping bracket and the tail end of the clamping arm, a serrated groove is provided on the side wall of the adjusting guide post along its length direction, the head end of the clamping arm is provided with positioning serrations that match the serrated groove, and the clamping arm is movably set in the clearance groove.

[0010] Preferably, a top clamping mechanism is provided on the front gantry, which includes a horizontal drive cylinder on the front gantry, a first lifting cylinder driven by the horizontal drive cylinder, and a downward pressing rod driven by the first lifting cylinder. Buffer pads are fixedly connected to both sides of the downward pressing rod. A hanger positioning mechanism is provided on the rear gantry, which includes a second lifting cylinder on the rear gantry and a second air gripper driven by the second lifting cylinder. Second clamping plates are installed on both arms of the second air gripper.

[0011] Preferably, a baffle plate is provided in the water storage tank, and the baffle plate, the first partition plate, and one side wall of the washing room surround to form an overflow room. A guide notch is provided at the bottom of the first partition plate to connect the water storage tank and the overflow room. An overflow pipe is provided on one side of one of the water storage tanks. An outlet connector is provided on one side of one of the water storage tanks. One end of the outlet connector is connected to the input end of the outlet pump, and the output end of the outlet pump is connected to the medicine input interface.

[0012] Preferably, a guide roller is provided at the bottom end of the lifting slide rail, and the wheel surface of the guide roller contacts the top surface of the lower annular conveying track; the lifting drive mechanism includes a first lifting drive device and a lifting guide mechanism. The first lifting drive device includes a lifting cylinder provided on the base and a connecting arm driven and connected to the lifting cylinder. The docking track is fixedly connected to the connecting arm. The lifting guide mechanism includes several lifting guide rods connected between the upper annular conveying track and the lower annular conveying track and a guide block fixedly connected to the connecting arm. A guide hole matching the lifting guide rod is provided through the guide block, and the lifting guide rod is disposed in the guide hole.

[0013] The beneficial effects of the present invention are as follows: The present invention provides a circuit board coating production line, including a hanging rack conveyor line, several clamping and loading mechanisms, an electroplating tank, a circuit board washing tank, several clamping and unloading mechanisms, and a stripping tank. It can realize the cyclic turnover of electroplating racks between different workstations, and can automate PCB loading, electroplating, PCB washing, PCB unloading, and rack cleaning. It can simplify the production process, improve production efficiency, and reduce production costs. Attached Figure Description

[0014] Figure 1 A schematic diagram illustrating the external structure of the present invention is shown.

[0015] Figure 2 A top view of the present invention is shown.

[0016] Figure 3 A schematic diagram illustrating the structure of the hanging conveyor device of the present invention is shown.

[0017] Figure 4 A schematic diagram illustrating the structure of the landing mechanism of the present invention is shown.

[0018] Figure 5 A schematic diagram illustrating the structure of the electroplating hanger of the present invention is shown.

[0019] Figure 6 The present invention is illustrated. Figure 5 A magnified schematic diagram of part A in the middle.

[0020] Figure 7 A schematic diagram illustrating the structure of the clamping and feeding mechanism of the present invention is shown.

[0021] Figure 8 The present invention is illustrated. Figure 7 A magnified schematic diagram of part B in the middle section.

[0022] Figure 9 A schematic diagram illustrating the structure of the electroplating tank of the present invention is shown.

[0023] Figure 10 A top view of the electroplating tank of the present invention is shown.

[0024] Figure 11 A schematic diagram illustrating the structure of the circuit board washing tank of the present invention is shown.

[0025] Figure 12 A cross-sectional view of the first water washing main tank of the present invention is shown.

[0026] Figure 13 A cross-sectional view of the water storage tank of the present invention is shown.

[0027] Figure 14 A schematic diagram illustrating the structure of the peeling groove of the present invention is shown.

[0028] Figure 15 A cross-sectional view of the peeling main groove of the present invention is shown.

[0029] Reference numerals: 1. Opening and feeding mechanism; 10. Support frame; 100. Front gantry frame; 101. Rear gantry frame; 11. Upper front opening mechanism; 11. First pressing cylinder; 110. First push roller seat; 111. First shaft; 112. First opening roller; 113. Opening push rod; 114. Upper rear opening mechanism; 12. Second pressing cylinder; 120. First push plate; 121. Lower front opening mechanism; 13. Third pressing cylinder; 130. Second push roller seat; 131. Second shaft; 132. Second opening roller; 133. Lower rear opening gripping mechanism; 14. Lower rear opening mechanism; 140. Fourth pressing cylinder; 140a. Second push plate; 140b. Clearance window; 140c. Grip assembly; 141. First gripper; 141a. First clamping plate; 141b. Lower opening mechanism; The components include: a clamping lifting mechanism 15, a lifting support 150, a second lifting drive device 151, a top pressing mechanism 16, a horizontal drive cylinder 160, a first lifting cylinder 161, a downward pressure rod 162, a buffer pad 163, a hanging bracket positioning mechanism 17, a second lifting cylinder 170, a second pneumatic gripper 171, a second clamping plate 172, an electroplating tank 2, a tank body 20, a cooling coil 21, a heating coil 22, a negative conductive copper busbar 23, an anode titanium mesh assembly 24, a positive conductive copper busbar 240, a titanium mesh 241, a drug supply pipe 242, a drug liquid input interface 243, a drug liquid output interface 244, a circuit board washing tank 3, a first main washing tank 30, a first partition 300, a guide notch 300a, a washing room 301, a hanging bracket channel 302, and a sealing soft rubber plate 303. Water storage tank 31, second partition 310, water storage tank 311, baffle plate 312, overflow chamber 313, overflow pipe 314, outlet connector 315, outlet pump 316, top spray system 32, water collection tank 320, top spray pipe assembly 321, vertical water supply pipe 322, horizontal top spray pipe 323, top spray input connector 324, side spray system 33, side spray input connector 330, first diversion pipe 331, side spray pipe assembly 332, second diversion pipe 333, vertical side spray pipe 334, water tank input connector 34, water tank output connector 35, drain connector 36, circulating pump 37, clamping and unloading mechanism 4, peeling trough 5, peeling main trough 50, peeling liquid storage tank 51, peeling side spray pipe 52, first liquid storage tank 520, first main trough input connector 521 522, 523, 524, 525, 526, 527, 530, 531, 532, 533, 534, 535, 536, 537, 538, 54, 54, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 540, 540, 541, 542, 543, 544, 545, 546, 55, 56, 56, 57, 56, 548, 55, 56, 57, 58, 54, 540, 541, 542, 543, 544, 545, 546, 55, 56, 57, 58, 54, 65, 66, 67, 68, 69, 600, 601, 602, 600, 600, 601, 602, 600, 600, 600, 601, 602.Upper ring conveyor track 603, hanging C-shaped conveyor track 604, first end 605, second end 606, transverse transfer system 61, upper chain 610, lower chain 611, servo motor 612, driving shaft 613, driven shaft 614, lowering mechanism 62, docking track 620, lifting mechanism 63, lifting slide rail 64, guide roller 640, first lifting drive device 65, lifting cylinder 650, connecting arm 651, lifting guide mechanism 66, lifting guide rod 660, guide block 661, electroplated hanging bracket 7, cross arm 70, conductive copper Head 700, contact slot 701, guide mechanism 71, guide seat 710, lifting guide pulley 711, horizontal guide pulley 712, upper clamping mechanism 72, upper clamping bracket 720, first clamp 721, lower clamping mechanism 73, lower clamping bracket 730, second clamp 731, clamping slot 730a, height adjustment mechanism 74, adjusting guide post 740, serrated groove 740a, positioning clamp 741, seat 741a, clamping arm 741b, spring 741c, positioning serration 741d, first positioning block 742, clearance groove 742a, second positioning block 743. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0031] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0032] refer to Figures 1-15 .

[0033] This invention provides a circuit board coating production line, comprising a rack conveyor line, several clamping and loading mechanisms 1, an electroplating tank 2, a circuit board washing tank 3, several clamping and unloading mechanisms 4, and a stripping trough 5; the rack conveyor line includes a rack conveying device 6 and multiple electroplating racks 7, the rack conveying device 6 including a transverse transfer support 60, a transverse transfer system 61, a lifting slide rail assembly, a lowering mechanism 62, and a lifting mechanism 63; the transverse transfer support 60 includes a base 600, a lower annular conveying track 601 disposed on the base 600, several columns 602 disposed on the base 600, and an upper annular track disposed between the several columns 602. The system includes a conveyor track 603, a C-shaped conveyor track 604 with a bracket set between several columns 602, the C-shaped conveyor track 604 having a first end 605 and a second end 606; a transverse conveying system 61 including an upper chain 610 movably mounted on the upper annular conveyor track 603, a lower chain 611 movably mounted on the lower annular conveyor track 601, a servo motor 612 mounted on a base 600, and a drive shaft 613 and a driven shaft 614 rotatably connected between the upper annular conveyor track 603 and the lower annular conveyor track 601, the drive shaft 613 and the driven shaft 614 being connected to the upper chain... The upper chain 610 and the lower chain 611 are connected by sprockets; the lifting slide rail assembly includes several lifting slide rails 64 that are equally spaced and connected between the upper chain 610 and the lower chain 611; the lowering mechanism 62 and the lifting mechanism 63 both include a docking rail 620 that cooperates with the C-shaped conveying rail 604 of the hanger, and a lifting drive mechanism set on the base 600 for driving the docking rail 620 to move up and down. The docking rail 620 of the lowering mechanism 62 can be spliced ​​with the first end 605, and the docking rail 620 of the lifting mechanism 63 can be spliced ​​with the second end 606; the electroplating hanger 7 includes a hanger mechanism, a cross arm 70, and a guide mechanism. 71. The guiding mechanism 71 includes a guide seat 710, lifting guide pulleys 711 respectively disposed on the four sides of the guide seat 710, and a horizontal guide pulley 712 disposed on one end face of the guide seat 710; a cross arm 70 connects the guide seat 710 and the hanging mechanism; an opening clamping and loading mechanism 1 is used to clamp the PCB on the hanging mechanism; an opening clamping and unloading mechanism 4 is used to remove the PCB from the hanging mechanism; an electroplating tank 2 is used to perform a coating operation on the PCB; a circuit board washing tank 3 is used to perform a water washing operation on the electroplated PCB; and a stripping tank 5 is used to perform a de-scraping operation on the electroplating hanging rack 7 to remove the coating layer attached to the electroplating hanging rack 7.

[0034] The specific operating principle is as follows: the servo motor 612 drives the active rotating shaft 613 to rotate, and the upper chain 610 and the lower chain 611 will run along the upper ring conveyor track 603 and the lower ring conveyor track 601 respectively, thereby driving the lifting slide rail 64 together with the electroplating rack 7 to move between different work positions. Initially, the docking track 620 of the lowering mechanism 62 is located at a high position where it is spliced ​​with the first end 605, and the docking track 620 of the lifting mechanism 63 is located at a low position on the side of the electroplating tank 2. When the electroplating rack 7 is conveyed to the clamping and loading mechanism 1, the PCB is clamped onto the rack mechanism by the clamping and loading mechanism 1. When the electroplating rack 7 is conveyed to the first end 605, the horizontal guide pulley 712 on the electroplating rack 7 can slide onto the docking rail 620 and be supported by the docking rail 620. The docking rail 620 is driven to move downward by the lifting drive mechanism, and the lifting guide pulley 711 can move along the lifting slide rail 64 to allow the electroplating rack 7 to descend into the electroplating tank 2, so that the PCB can be electroplated in the electroplating tank 2. When the electroplating rack 7 moves to the other end of the electroplating tank 2 under the drive of the transverse transfer system 61, the horizontal guide pulley 712 slides onto the docking rail 620 of the lifting mechanism 63, and the PCB is supported by the lifting drive mechanism 63. The lifting mechanism drives the docking rail 620 upward, and the docking rail 620 of the lifting mechanism 63 lifts the electroplating rack 7 until the docking rail 620 is spliced ​​with the second end 606, thereby removing the electroplating rack 7 from the electroplating tank 2. When the electroplating rack 7 is transported to the circuit board washing tank 3, the PCB is washed by the circuit board washing tank 3. When the electroplating rack 7 is transported to the clamping and unloading mechanism 4, the PCB is removed from the rack mechanism by the clamping and unloading mechanism 4. When the electroplating rack 7 is transported to the stripping tank 5, the electroplating rack is de-scraped by the stripping tank 5. This allows the electroplating rack 7 to be circulated between different workstations, simplifying the production process, improving production efficiency, and reducing production costs.

[0035] Based on the above embodiments, both the clamping loading mechanism 1 and the clamping unloading mechanism 4 include loading and unloading stations and clamping devices. The clamping devices include a bracket 10, an upper front clamping mechanism 11, an upper rear clamping mechanism 12, a lower front clamping mechanism 13, a lower rear clamping holding mechanism 14, and a lower clamping lifting mechanism 15. The bracket 10 includes a front gantry frame 100 and a rear gantry frame 101. The upper front clamping mechanism 11 includes a plurality of first push-tightening cylinders 110 disposed on the front gantry frame 100, a first push-wheel seat 111 connected between the output shafts of the plurality of first push-tightening cylinders 110, a first shaft 112 fixedly connected to the first push-wheel seat 111, and a plurality of first clamping rollers 113 connected to the first shaft 112. Both sides of the first push-wheel seat 111 are provided with The upper rear opening mechanism 12 includes several second pressing cylinders 120 mounted on the rear gantry 101 and a first push plate 121 connected between the output shafts of the several second pressing cylinders 120; the lower opening lifting mechanism 15 includes a lifting support 150 slidably connected to the rear gantry 101 along the Z-axis direction and a second lifting drive device 151 mounted on the bracket 10 for driving the lifting support 150 to move up and down; the lower front opening mechanism 13 includes several third pressing cylinders 130 mounted on the front gantry 100, a second push wheel seat 131 connected between the output shafts of the several third pressing cylinders 130, a second shaft 132 fixedly connected to the second push wheel seat 131, and several push plates 132 connected to the second shaft 130. The second clamping roller 133 on the 2nd side; the lower rear clamping holding mechanism 14 includes a lower rear clamping mechanism 140 and several holding components 141. The lower rear clamping mechanism 14 includes a fourth push-tightening cylinder 140a disposed on the rear gantry frame 101 and a second push plate 140b connected to the output shaft of the fourth push-tightening cylinder 140a. The holding component 141 includes a first pneumatic gripper 141a disposed on one side of the second push plate 140b. The two claw arms of the first pneumatic gripper 141a are each equipped with a first clamping plate 141b. The second push plate 140b has a clearance window 140c corresponding to the holding component 141, and one of the first clamping plates 141b extends out of the clearance window 140c; the hanging mechanism includes an upper clamping mechanism 72, a lower clamping mechanism 73, and two height adjustment mechanisms. The segmented mechanism 74 includes an upper clamping mechanism 72 comprising an upper clamping bracket 720 and several first clamps 721 arranged in parallel on the upper clamping bracket 720; a lower clamping mechanism 73 comprising a lower clamping bracket 730 and several second clamps 731 arranged in parallel on the lower clamping bracket 730; the lower clamping bracket 730 has several clamping slots 730a arranged in parallel on it; and a height adjustment mechanism 74 comprising an adjusting guide post 740, positioning clamps 741, a first positioning block 742 fixedly connected to the upper clamping bracket 720, and a second positioning block 743 fixedly connected to the lower clamping bracket 730. The bottom end of the adjusting guide post 740 is fixedly connected to the second positioning block 743. The first positioning block 742 has a through hole that matches the adjusting guide post 740, and the adjusting guide post 740 is movably disposed in the through hole.The positioning clamp 741 is set on the upper clamping bracket 720 and can clamp the adjusting guide post 740. Specifically, the loading and unloading station can be manually or by robot. When the electroplating hanger 7 is transported between the front gantry 100 and the rear gantry 101, the first clamp 721, the second clamp 731, and the positioning clamp 741 of the electroplating hanger 7 will be located in front of the first opening roller 113, the second opening roller 133, and the opening push rod 114, respectively. One of the first clamping plates 141b on the first pneumatic gripper 141a extends into the clamping slot 730a, and the other first clamping plate 141b is located on the lower clamping bracket 730. When the clamps are opened, the first push plate 121 and the second push plate 140b are driven forward by the second push cylinder 120 and the fourth push cylinder 140a, respectively, so that the first push plate 121 and the second push plate 140b abut against the rear side of the upper clamping bracket 720 and the lower clamping bracket 730, respectively. The first push cylinder 110 and the third push cylinder 130 are driven forward by the first push roller seat 111 and the second push roller seat 131, respectively, so that the first clamping roller 113, the second clamping roller 133, and the clamping push rod 114 abut against the first clamp 721, the second clamp 731, and the positioning clamp 741, respectively, thereby opening the first clamp 721, the second clamp 731, and the positioning clamp 741. When the distance between the first clamp 721 and the second clamp 731 needs to be adjusted, the first pneumatic gripper 141a drives the two first clamping plates 141b to close, gripping the lower clamping bracket 730. Then, the second lifting drive device 151 drives the lifting support 150 to move up and down, dragging the lower clamping bracket 730 along with the two adjusting guide pillars 740 up and down. After adjustment, the PCB is placed between several first clamps 721 and second clamps 731 through the loading and unloading station. Then, the first pressing cylinder 110, the second pressing cylinder 120, the third pressing cylinder 130, and the fourth pressing cylinder 140a are reset. The first clamps 721 and the second clamp 731 will close and hold the PCB, and the positioning clamp 741 will close and hold the adjusting guide pillars 740. This automates the opening of the clamps and the adjustment of the distance between the upper and lower clamps, saving manpower, improving PCB clamping efficiency, and increasing production efficiency.

[0036] Based on the above embodiments, the electroplating tank 2 includes a tank body 20, a constant temperature system, an electroplating system, and a chemical solution circulation system; the constant temperature system includes a temperature sensor, a cooling coil 21, and a heating coil 22 disposed in the tank body 20; the electroplating system includes a negative electrode conductive copper busbar 23 disposed on the tank body 20 and two anode titanium mesh groups 24 respectively disposed on opposite sides of the tank body 20, the anode titanium mesh group 24 including a positive electrode conductive copper busbar 240 and several titanium meshes 241 arranged side by side on the side wall of the tank body 20 and electrically connected to the positive electrode conductive copper busbar 240; the chemical solution circulation system... The system includes a drug supply pipe 242 located at the bottom of the tank 20, a drug liquid input interface 243 located on the tank 20, and a drug liquid output interface 244. The drug liquid input interface 243 is connected to the drug supply pipe 242, and the drug supply pipe 242 has outlet holes. The drug liquid output interface 244 is connected to the inside of the tank 20. The cross arm 70 is fixedly connected between the guide seat 710 and the upper clamp bracket 720. The bottom of the cross arm 70 is provided with a conductive copper head 700, and the bottom of the conductive copper head 700 is provided with a contact slot 701 that matches the negative conductive copper busbar 23. Specifically, electroplating solution is loaded into tank 20. The solution input interface 243 and solution output interface 244 are connected to a filter device via a pump. The negative conductive copper busbar 23 and the positive conductive copper busbar 240 are connected to the negative and positive terminals of the rectifier, respectively. The titanium mesh 241 can contact the solution in tank 20. The temperature sensor can monitor the temperature of the solution in tank 20 in real time. The cooling coil 21 can cool the solution in tank 20, and the heating coil 22 can heat the solution in tank 20 to maintain a constant temperature. When the pump is working, the solution in tank 20 can be led out from the solution output interface 244 to the filter device for filtration. The filtered solution is then transported to the supply pipe 242 through the solution input interface 243. The solution in the supply pipe 242 is evenly discharged into tank 20 through the outlet hole, which can ensure the uniform concentration of the solution in tank 20 and the cleanliness of the solution. The PCB is placed into the tank 20 using the electroplating rack 7. The contact slot 701 on the conductive copper head 700 will lock onto the negative conductive copper busbar 23. The contact between the conductive copper head 700 and the negative conductive copper busbar 23 allows current to be conducted to the electroplating rack 7 for electroplating. A uniform plating layer can be formed on the PCB surface. The electroplating rack 7 is moved horizontally on the tank 20 by the transverse transfer system 61. The contact slot 701 can move along the negative conductive copper busbar 23 to achieve mass production processing. Multiple electroplating racks 7 can be placed in the tank 20 at the same time to perform electroplating operations on the PCB.

[0037] Based on the above embodiments, the circuit board washing tank 3 includes a first washing main tank 30 and a water storage tank 31. Several first partitions 300 are arranged side-by-side inside the first washing main tank 30, dividing the interior of the first washing main tank 30 into several washing chambers 301. Hanging rack channels 302 are provided on both end walls of the first washing main tank 30 and on the first partitions 300. Sealing soft rubber plates 303 are provided on both sides of the hanging rack channels 302 of the first washing main tank 30. Two sealing soft rubber plates 303 are joined together to connect the hanging rack channels 301. 02 Closed; Several second partitions 310 are arranged side by side inside the water storage tank 31, dividing the interior of the water storage tank 31 into several water storage tanks 311; A spray system is provided in the washing room 301, which includes a top spray system 32 and a side spray system 33. The top spray system 32 includes a water collection tank 320 located at the bottom of the washing room 301, two symmetrically arranged top spray pipe groups 321, and a top spray input connector 324 communicating with the water collection tank 320. The top spray pipe group 321 includes a vertical... The system includes a water supply pipe 322, a horizontal top spray pipe 323 connected to one end of the vertical water supply pipe 322, and first spray holes evenly distributed on the horizontal top spray pipe 323. The side spray system 33 includes a side spray input connector 330 located at the bottom of the main washing tank 30, a first diversion pipe 331 connected to the side spray input connector 330, and two symmetrically arranged side spray pipe groups 332. The side spray pipe group 332 includes a second diversion pipe 333 connected to one end of the first diversion pipe 331, and several vertical side spray pipes 334 arranged in parallel and connected to the second diversion pipe 333. The vertical side spray pipe 334 is evenly distributed with nozzles that communicate with it; the water storage tank 311 is equipped with a water circulation system, which includes a water tank inlet connector 34 and a water tank outlet connector 35 that communicate with the water storage tank 311, a drain connector 36 connected to the bottom of the washing room 301, and a circulation pump 37. The water tank outlet connector 35 is connected to the input end of the circulation pump 37, the top spray inlet connector 322 and the side spray inlet connector 330 are connected to the output end of the circulation pump 37, and the drain connector 36 is connected to the water tank inlet connector 34. Specifically, each water storage tank 311 stores an appropriate amount of clean water. When the circulating pump 37 is working, the clean water in the water storage tank 311 is sent to the water collection tank 320 and the first diversion pipe 331. The water in the water collection tank 320 flows through the vertical water supply pipe 322 and the horizontal top spray pipe 323 and is sprayed out from the first spray hole. The water entering the first diversion pipe 331 flows through the second diversion pipe 333 to the vertical side spray pipe 334 and is sprayed out from the nozzle. (Appendix) Figure 11-13An example is provided with three washing chambers 301 and three water storage tanks 311. Following the conveying direction of the electroplating racks 7 in the first main washing tank 30, the washing chambers 301 in the first main washing tank 30 are sequentially defined as washing chamber number one, washing chamber number two, and washing chamber number three. Multiple electroplating racks 7 are passed through washing chamber number one, washing chamber number two, and washing chamber number three in turn. The water storage tanks 311 corresponding to washing chamber number one, washing chamber number two, and washing chamber number three are designated as water storage tank number one, water storage tank number two, and water storage tank number three, respectively. This allows the spray system to perform multiple water rinsing processes on the PCB. The water from each washing chamber 301 after washing flows back to the corresponding water storage tank 311. The concentration of electroplating solution in the liquid in water storage tank number one, water storage tank number two, and water storage tank number three gradually decreases. After passing through multiple washing chambers, the PCB is gradually cleaned, resulting in a good cleaning effect, reduced water consumption, and the ability to recycle the cleaning water.

[0038] Based on the above embodiments, the stripping tank 5 includes a stripping system, a washing system, and a drying system; the stripping system includes a main stripping tank 50, a stripping liquid storage tank 51, and a stripping spray circulation mechanism. The stripping spray circulation mechanism includes two stripping side spray pipes 52 symmetrically arranged on both sides of the main stripping tank 50, a first liquid storage tank 520 disposed at the bottom of the main stripping tank 50, several first main tank input connectors 521 connected to the bottom of the first liquid storage tank 520, several first main tank output connectors 522 connected to the bottom of the main stripping tank 50, several first return connectors 523, a first pump 524, a first water supply pipe 525, and a first overflow pipe 526. The first return connectors 523 are connected to the inside of the stripping liquid storage tank 51, and the input end of the first pump 524 is connected to the inside of the stripping liquid storage tank 51. The output end of the first pump 524 is connected to the stripping side spray pipe 52 and the first main tank input connector 521. The stripping side spray pipe 52 has first spray holes distributed on it. The first main tank output connector 522 is connected to the first return connector 523. The water washing system includes a second water washing main tank 53, a water washing storage tank 530, and a water washing spray circulation mechanism. The water washing spray circulation mechanism includes two water washing side spray pipes 531 symmetrically arranged on both sides of the second water washing main tank 53, a second storage tank 532 set at the bottom of the second water washing main tank 53, several second main tank input connectors 533 connected to the bottom of the second storage tank 532, several second main tank output connectors 534 connected to the bottom of the second water washing main tank 53, several second return connectors 535, a second pump 536, and a second water supply. Pipe 537, second overflow pipe 538, and second return connector 535 are connected to the interior of the water washing storage tank 530. The input end of the second pump 536 is connected to the interior of the water washing storage tank 530, and the output end of the second pump 536 is connected to the water washing side spray pipe 531 and the second main tank input connector 533. The water washing side spray pipe 531 has second spray holes distributed on it. The second main tank output connector 534 is connected to the second return connector 535. The drying system includes a drying main tank 54, two upper air blowing assemblies 540 symmetrically arranged on the two side walls of the drying main tank 54, two lower air blowing assemblies 541 symmetrically arranged on the two side walls of the drying main tank 54, and two air inlets 542 respectively arranged on both sides of the drying main tank 54. Each of 541 includes an air collecting pipe 543 and several air nozzles 544 evenly distributed on and connected to the air collecting pipe 543. The air collecting pipes 543 of the upper air blowing assembly 540 and the lower air blowing assembly 541 on the same side are connected to one of the air inlet connectors 542. The main peeling tank 50, the second water washing main tank 53, and the drying main tank 54 are connected together. The two end walls of the main peeling tank 50, the second water washing main tank 53, the drying main tank 54, the first liquid storage tank 520, and the second liquid storage tank 532 are all provided with through-plate windows 55 to allow the electroplating rack 7 to pass through. Several sealing curtains 56 are arranged side by side on both sides of the through-plate windows 55 of the first liquid storage tank 520 and the second liquid storage tank 532. When the several sealing curtains 56 are put together, the through-plate windows 55 can be closed.Specifically, stripping solution and clean water are stored in stripping storage tank 51 and water washing storage tank 530, respectively. The input end of air inlet connector 542 is connected to the output end of air pump. When the first pump 524 is working, the first spray hole on the stripping side spray pipe 52 will spray out stripping solution, the first main tank input connector 521 will deliver stripping solution to the first storage tank 520, the second spray hole on the water washing side spray pipe 531 will spray out clean water, the second main tank input connector 533 will deliver clean water to the second storage tank 532, and when the air pump is working, the air nozzle 544 will blow out airflow. The electroplating rack 7, after electroplating, is conveyed from the stripping main tank 50 to the drying main tank 54. After the electroplating rack 7 enters the first storage tank 520 through the sealing curtain 56 on the through-plate window 55, the upper clamping mechanism 72 of the electroplating rack 7 is sprayed with stripping liquid from the stripping side nozzles 52 on both sides. The sprayed stripping liquid peels off the coating adhering to the upper clamping mechanism 72. The lower clamping mechanism 73 is then immersed in the stripping liquid in the first storage tank 520 to peel off the coating adhering to the lower clamping mechanism 73. After the plating rack 7 enters the second liquid storage tank 532, the upper clamping mechanism 72 is sprayed with clean water from the water washing side spray pipes 531 on both sides to rinse the upper clamping mechanism 72, and the lower clamping mechanism 73 is immersed in the clean water in the second liquid storage tank 532 to clean the lower clamping mechanism 73. When the plating rack 7 enters the drying main tank 54, the air nozzle 544 blows the upper clamping mechanism 72 and the lower clamping mechanism 73 to dry the water on the plating rack 7, and then the plating rack 7 is output from the drying main tank 54. The stripping liquid in the main stripping tank 50 can be returned to the stripping storage tank 51 through the first main tank output connector 522, and then pumped by the first pump 524 to the stripping side spray pipe 52 and the first main tank input connector 521 to re-enter the main stripping tank 50 for circulation. The water in the second washing main tank 53 can be returned to the washing storage tank 530 through the second main tank output connector 534, and then pumped by the second pump 536 to the washing side spray pipe 531 and the second main tank input connector 533 to re-enter the second washing main tank 53 for circulation. This can realize the connection of stripping, washing and drying, and improve production efficiency.

[0039] Based on the above embodiments, the first positioning block 742 is provided with a clearance groove 742a communicating with the through hole, and the positioning clamp 741 includes a base 741a provided on the upper clamping bracket 720, a clamping arm 741b hinged on the base 741a, and a spring 741c abutting between the upper clamping bracket 720 and the tail end of the clamping arm 741b. The side wall of the adjusting guide post 740 is provided with a serrated groove 740a along its length direction, and the head end of the clamping arm 741b is provided with a positioning serration 741d matching the serrated groove 740a. The clamping arm 741b is movably disposed in the clearance groove 742a. When the height of the adjusting guide post 740 needs to be adjusted, the clamping push rod 114 is pressed against the clamping arm 741b to open the clamping arm 741b. Then, the lower clamping lifting mechanism 15 drives the lower clamping bracket 730 to rise and fall, thereby moving the two adjusting guide posts 740 along the upper through hole 320 to adjust the distance between the first clamp 721 and the second clamp 731. After adjustment, the clamping arm 741b is closed, and the positioning sawtooth 741d will be engaged in the sawtooth groove 740a, achieving positioning between the adjusting guide post 740 and the first positioning block 742.

[0040] Based on the above embodiments, a top pressing mechanism 16 is provided on the front gantry frame 100. The top pressing mechanism 16 includes a horizontal drive cylinder 160 provided on the front gantry frame 100, a first lifting cylinder 161 driven and connected to the horizontal drive cylinder 160, and a downward pressing rod 162 driven and connected to the first lifting cylinder 161. Buffer pads 163 are fixedly connected to both sides of the downward pressing rod 162. A hanger positioning mechanism 17 is provided on the rear gantry frame 101. The hanger positioning mechanism 17 includes a second lifting cylinder 170 provided on the rear gantry frame 101 and a second air gripper 171 driven and connected to the second lifting cylinder 170. A second clamping plate 172 is installed on both claw arms of the second air gripper 171. Specifically, after the electroplating hanger 7 is transported between the front gantry 100 and the rear gantry 101, the first lifting cylinder 161 is moved forward by the horizontal drive cylinder 160 so that the lower pressure rod 162 is aligned with the top of the upper clamping bracket 720. Then, the lower pressure rod 162 is moved downward by the first lifting cylinder 161 so that the buffer pad 163 presses down on the top of the upper clamping bracket 720 to prevent the electroplating hanger 7 from shaking or deviating when clamping the PCB. The second gripper 171 is moved upward by the second lifting cylinder 170 so that the horizontal arm 70 is positioned between the two second clamping plates 172. Then, the two second clamping plates 172 are closed by the second gripper 171 so that the two second clamping plates 172 clamp the horizontal arm 70 to prevent the electroplating hanger 7 from shaking or deviating when clamping the PCB.

[0041] Based on the above embodiments, a baffle plate 312 is provided in the water storage tank 311. The baffle plate 312, the first partition plate 300, and one side wall of the washing room 301 surround and form an overflow room 313. A guide notch 300a is provided at the bottom of the first partition plate 300. The guide notch 300a enables the water storage tank 311 to communicate with the overflow room 313. An overflow pipe 314 is provided on one side of one water storage tank 311. An outlet connector 315 is provided on one side of one water storage tank 311. One end of the outlet connector 315 is connected to the input end of the outlet pump 316. The output end of the outlet pump 316 is connected to the liquid input interface 243. Specifically, water from storage tank number three flows into the overflow chamber 313 of storage tank number two through the guide notch 300a. When the water level in storage tank number three is higher than the height of the baffle plate 312 of storage tank number two, the water in storage tank number three will overflow into storage tank number two. Water from storage tank number two flows into the overflow chamber 313 of storage tank number one through the guide notch 300a. When the water level in storage tank number two is higher than the height of the baffle plate 312 of storage tank number one, the water in storage tank number two will overflow into storage tank number one. When the water level in storage tank number three is too high, the water in storage tank number three can be discharged through the overflow pipe 314, forming a stepped overflow effect, which can save water. Since the water in storage tank number one contains a high concentration of electroplating solution, some of the liquid in storage tank number one can be drawn out to the electroplating tank by the lead-out pump 366 to balance the liquid level and achieve the effect of reuse.

[0042] Based on the above embodiments, a guide roller 640 is provided at the bottom end of the lifting slide rail 64. The wheel surface of the guide roller 640 contacts the top surface of the lower annular conveying track 601, which can improve the lateral stability of the lifting slide rail 30. The lifting drive mechanism includes a first lifting drive device 65 and a lifting guide mechanism 66. The first lifting drive device 65 includes a lifting cylinder 650 disposed on the base 600 and a connecting arm 651 drivenly connected to the lifting cylinder 650. The docking track 620 is fixedly connected to the connecting arm 651. The lifting guide mechanism 66 includes a plurality of lifting guide rods 660 connected between the upper annular conveying track 603 and the lower annular conveying track 601 and a guide block 661 fixedly connected to the connecting arm 651. A guide hole matching the lifting guide rod 660 is provided through the guide block 661, and the lifting guide rod 660 is disposed in the guide hole. When it is necessary to move the electroplating hanger 7 up and down, the connecting arm 651 is driven to move up and down by the lifting cylinder 650, and the guide block 661 will move along the lifting guide rod 660, which can improve the lifting stability of the docking track 620.

[0043] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A circuit board coating production line, characterized in that, The system includes a rack conveyor line, several clamping and loading mechanisms, an electroplating tank, a circuit board washing tank, several clamping and unloading mechanisms, and a stripping trough. The rack conveyor line includes a rack conveying device and multiple electroplating racks. The rack conveying device includes a transverse transfer support, a transverse transfer system, a lifting slide rail assembly, a lowering mechanism, and a lifting mechanism. The transverse transfer support includes a base, a lower annular conveyor track mounted on the base, several columns mounted on the base, an upper annular conveyor track between the columns, and a rack C-shaped conveyor track between the columns. The rack C-shaped conveyor track includes a first end and a second end. The transverse transfer system includes an upper chain movably mounted on the upper annular conveyor track, a lower chain movably mounted on the lower annular conveyor track, a servo motor mounted on the base, and a driving shaft and a driven shaft rotatably connected between the upper and lower annular conveyor tracks. The upper and lower chains are connected by sprockets; the lifting slide rail assembly includes several equally spaced lifting slide rails connected between the upper and lower chains; the lowering mechanism and the lifting mechanism each include a docking rail that cooperates with the C-shaped conveying rail of the hanger, and a lifting drive mechanism set on the base for driving the docking rail to move up and down; the docking rail of the lowering mechanism can be spliced ​​with the first end, and the docking rail of the lifting mechanism can be spliced ​​with the second end; the electroplating hanger includes a hanger mechanism, a cross arm, and a guide mechanism; the guide mechanism includes a guide seat, lifting guide pulleys respectively set on the four sides of the guide seat, and a horizontal guide pulley set on one end face of the guide seat; the cross arm connects the guide seat and the hanger mechanism; the clamping and loading mechanism is used to clamp the PCB on the hanger mechanism; the clamping and unloading mechanism is used to remove the PCB from the hanger mechanism; the electroplating tank is used to perform a coating operation on the PCB. The circuit board washing tank is used to wash the electroplated PCB; the plating stripping tank is used to remove plating from the electroplating rack.

2. The circuit board coating production line according to claim 1, characterized in that, The clamping loading mechanism and clamping unloading mechanism both include loading and unloading stations and clamping devices. The clamping device includes a bracket, an upper front clamping mechanism, an upper rear clamping mechanism, a lower front clamping mechanism, a lower rear clamping holding mechanism, and a lower clamping lifting mechanism. The bracket includes a front gantry and a rear gantry. The upper front clamping mechanism includes several first pressing cylinders mounted on the front gantry, a first push wheel seat connected between the output shafts of the several first pressing cylinders, a first shaft fixedly connected to the first push wheel seat, and several first clamping rollers connected to the first shaft. Clamping push rods are provided on both sides of the first push wheel seat. The upper rear opening clamping mechanism includes a plurality of second pressing cylinders disposed on the rear gantry frame and a first push plate connected between the output shafts of the plurality of second pressing cylinders; the lower opening lifting mechanism includes a lifting support slidably connected to the rear gantry frame along the Z-axis direction and a second lifting drive device disposed on the support for driving the lifting support to move up and down; the lower front opening clamping mechanism includes a plurality of third pressing cylinders disposed on the front gantry frame, a second push wheel seat connected between the output shafts of the plurality of third pressing cylinders, a second shaft fixedly connected to the second push wheel seat, and a plurality of second opening rollers connected to the second shaft. The lower rear-opening clamping mechanism includes a lower rear-opening clamping mechanism and several clamping components. The lower rear-opening clamping mechanism includes a fourth push-tightening cylinder mounted on the rear gantry and a second push plate connected to the output shaft of the fourth push-tightening cylinder. The clamping component includes a first pneumatic gripper mounted on one side of the second push plate. A first clamping plate is mounted on each of the two gripper arms of the first pneumatic gripper. The second push plate has a clearance window corresponding to the clamping component, and one of the first clamping plates extends out of the clearance window. The hanging frame mechanism includes an upper clamping mechanism, a lower clamping mechanism, and two height adjustment mechanisms. The upper clamping mechanism includes an upper clamping bracket and several parallel clamping components. The first clamp is placed on the upper clamping bracket. The lower clamping mechanism includes a lower clamping bracket and several second clamps arranged in parallel on the lower clamping bracket. Several clamping slots are arranged in parallel on the lower clamping bracket. The height adjustment mechanism includes an adjusting guide post, a positioning clamp, a first positioning block fixedly connected to the upper clamping bracket, and a second positioning block fixedly connected to the lower clamping bracket. The bottom end of the adjusting guide post is fixedly connected to the second positioning block. A through hole matching the adjusting guide post is provided through the first positioning block. The adjusting guide post is movably disposed in the through hole. The positioning clamp is disposed on the upper clamping bracket and can clamp the adjusting guide post.

3. The circuit board coating production line according to claim 2, characterized in that, The electroplating tank includes a tank body, a constant temperature system, an electroplating system, and a chemical solution circulation system. The constant temperature system includes a temperature sensor, a cooling coil, and a heating coil installed in the tank body. The electroplating system includes a negative conductive copper busbar installed on the tank body and two anode titanium mesh groups respectively installed on opposite sides of the tank body. Each anode titanium mesh group includes a positive conductive copper busbar and several titanium meshes arranged side-by-side on the side wall of the tank body and electrically connected to the positive conductive copper busbar. The chemical solution circulation system includes a chemical supply pipe installed at the bottom of the tank body, a chemical solution input interface and a chemical solution output interface installed on the tank body. The chemical solution input interface is connected to the chemical supply pipe, and the chemical supply pipe has outlet holes. The chemical solution output interface is connected to the interior of the tank body. The cross arm is fixedly connected between the guide seat and the upper clamp bracket. A conductive copper head is provided at the bottom of the cross arm, and a contact groove matching the negative conductive copper busbar is provided at the bottom of the conductive copper head.

4. The circuit board coating production line according to claim 1, characterized in that, The circuit board washing tank includes a first main washing tank and a water storage tank. The first main washing tank has several first partitions arranged side-by-side, dividing the tank into several washing compartments. Hanging rack channels are provided on both end walls of the first main washing tank and on the first partitions. Sealing soft rubber plates are provided on both sides of each hanging rack channel, and two sealing soft rubber plates are joined together to close the hanging rack channel. The water storage tank has several second partitions arranged side-by-side, dividing the tank into several water storage troughs. A spray system is provided in each washing compartment. The spray system includes a top spray system and a side spray system. The top spray system includes a water collection trough at the bottom of the washing compartment, two symmetrically arranged top spray pipe groups, and a top spray input connector communicating with the water collection trough. The top spray pipe groups include a vertical water supply pipe communicating with the water collection trough. A horizontal top spray pipe is connected to one end of the vertical water supply pipe. The horizontal top spray pipe has first spray holes evenly distributed on it. The side spray system includes a side spray input connector located at the bottom of the main washing tank, a first diversion pipe connected to the side spray input connector, and two symmetrically arranged side spray pipe groups. The side spray pipe groups include a second diversion pipe connected to one end of the first diversion pipe, and several vertical side spray pipes arranged in parallel and connected to the second diversion pipe. The vertical side spray pipes have nozzles evenly distributed on them and connected to them. A water circulation system is provided on the water storage tank. The water circulation system includes a water tank input connector and a water tank output connector connected to the water storage tank, a drain connector connected to the bottom of the washing room, and a circulation pump. The water tank output connector is connected to the input end of the circulation pump. The top spray input connector and the side spray input connector are connected to the output end of the circulation pump. The drain connector is connected to the water tank input connector.

5. A circuit board coating production line according to claim 1, characterized in that, The stripping tank includes a stripping system, a washing system, and a drying system. The stripping system includes a main stripping tank, a stripping liquid storage tank, and a stripping spray circulation mechanism. The stripping spray circulation mechanism includes two stripping side spray pipes symmetrically arranged on both sides of the main stripping tank, a first liquid storage tank located at the bottom of the main stripping tank, several first main tank input connectors connected to the bottom of the first liquid storage tank, several first main tank output connectors connected to the bottom of the main stripping tank, several first return connectors, a first pump, a first water supply pipe, and a first overflow pipe. The first return connectors communicate with the interior of the stripping liquid storage tank, and the input end of the first pump is connected to the interior of the stripping liquid storage tank. The first pump's output end is connected to the stripping-side spray pipe and the first main tank input connector. The stripping-side spray pipe has first spray holes distributed on it. The first main tank output connector is connected to the first return connector. The water washing system includes a second main washing tank, a water washing storage tank, and a water washing spray circulation mechanism. The water washing spray circulation mechanism includes two water washing side spray pipes symmetrically arranged on both sides of the second main washing tank, a second storage tank located at the bottom of the second main washing tank, several second main tank input connectors connected to the bottom of the second storage tank, several second main tank output connectors connected to the bottom of the second main washing tank, several second return connectors, and a second pump. The system includes a second water supply pipe, a second overflow pipe, a second return connector connected to the interior of the water washing storage tank, an input end of the second pump connected to the interior of the water washing storage tank, an output end of the second pump connected to the water washing side spray pipe and the second main tank input connector, a second spray hole distributed on the water washing side spray pipe, and an output connector of the second main tank connected to the second return connector; the drying system includes a drying main tank, two upper air blowing assemblies symmetrically arranged on the two side walls of the drying main tank, two lower air blowing assemblies symmetrically arranged on the two side walls of the drying main tank, and two air inlets respectively arranged on both sides of the drying main tank. Both the air assembly and the lower air blowing assembly include an air collecting pipe and several air blowing nozzles evenly distributed on the air collecting pipe and connected to the air collecting pipe. The air collecting pipes of the upper air blowing assembly and the lower air blowing assembly on the same side are connected to one of the air inlet connectors. The main stripping tank, the second water washing tank, and the drying tank are connected together. The two end walls of the main stripping tank, the second water washing tank, the drying tank, the first liquid storage tank, and the second liquid storage tank are all provided with through-plate windows to allow the electroplating racks to pass through. Several sealing curtains are arranged side by side on the two side walls of the through-plate windows of the first liquid storage tank and the second liquid storage tank. When the several sealing curtains are put together, the through-plate windows can be closed.

6. A circuit board coating production line according to claim 2, characterized in that, The first positioning block is provided with a clearance groove communicating with the through hole. The positioning clamp includes a base set on the upper clamping bracket, a clamping arm hinged to the base, and a spring abutting between the upper clamping bracket and the tail end of the clamping arm. The side wall of the adjusting guide post is provided with a serrated groove along its length direction. The head end of the clamping arm is provided with a positioning serration that matches the serrated groove. The clamping arm is movably set in the clearance groove.

7. A circuit board coating production line according to claim 2, characterized in that, The front gantry is equipped with a top pressing mechanism, which includes a horizontal drive cylinder mounted on the front gantry, a first lifting cylinder driven by the horizontal drive cylinder, and a downward pressing rod driven by the first lifting cylinder. Buffer pads are fixedly connected to both sides of the downward pressing rod. The rear gantry is equipped with a hanger positioning mechanism, which includes a second lifting cylinder mounted on the rear gantry and a second air gripper driven by the second lifting cylinder. Second clamping plates are installed on both arms of the second air gripper.

8. A circuit board coating production line according to claim 4, characterized in that, A baffle plate is provided in the water storage tank. The baffle plate, the first partition plate, and one side wall of the washing room surround and form an overflow room. A flow guide notch is provided at the bottom of the first partition plate to connect the water storage tank and the overflow room. An overflow pipe is provided on one side of one of the water storage tanks. An outlet connector is provided on one side of one of the water storage tanks. One end of the outlet connector is connected to the input end of the outlet pump, and the output end of the outlet pump is connected to the medicine input interface.

9. A circuit board coating production line according to claim 1, characterized in that, The bottom end of the lifting slide rail is provided with a guide roller, and the wheel surface of the guide roller contacts the top surface of the lower annular conveying track. The lifting drive mechanism includes a first lifting drive device and a lifting guide mechanism. The first lifting drive device includes a lifting cylinder disposed on the base and a connecting arm drivenly connected to the lifting cylinder. The docking track is fixedly connected to the connecting arm. The lifting guide mechanism includes a plurality of lifting guide rods connected between the upper annular conveying track and the lower annular conveying track and a guide block fixedly connected to the connecting arm. The guide block is provided with a guide hole matching the lifting guide rod, and the lifting guide rod is disposed in the guide hole.

Images