An etching machine for PCB processing and an etching process method

Abstract

The application belongs to the technical field of PCB processing, and particularly relates to an etching machine for PCB processing and an etching process method. The etching liquid is prone to incomplete contact with the PCB, which causes part of the copper foil to be incompletely etched, thereby increasing the etching time of the PCB material and reducing the etching effect. The present application discloses the following scheme, which comprises an etching box body, an observation window arranged on one side of the etching box body, an inlet conveying roller and an outlet conveying roller arranged at an inlet and an outlet of the etching box body respectively, and an etching auxiliary module arranged in the etching box body. The etching machine for PCB processing and the etching process method have the advantages that the etching liquid can be in complete contact with the PCB, part of the copper foil cannot be incompletely etched, residues are left, the conductivity of the circuit and the integrity of the circuit are affected, the etching time of the PCB material is reduced, and the etching effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PCB processing, in particular to an etching machine for PCB processing and an etching process method. BACKGROUND

[0002] PCB, the Chinese name of which is printed circuit board, is also called printed wiring board, is an important electronic component, is a support body of electronic components, and is a carrier for electrical interconnection of electronic components. Etching is to remove unnecessary copper layer through chemical reaction to form a required circuit pattern. Through continuous improvement and development of process equipment, it can also be used for processing of electronic sheet part precision etching products in aviation, machinery and chemical industries, and etching is an indispensable technology in semiconductor manufacturing process.

[0003] The existing PCB etching is mainly completed by contacting the PCB with the alkaline etching liquid. Since the etching liquid is not fully contacted with the PCB when being sprayed, part of the copper foil cannot be completely etched, leaving residues, affecting the conductivity of the circuit and the integrity of the circuit, thereby increasing the etching time of the PCB material and reducing the etching effect. SUMMARY

[0004] The application discloses an etching machine for PCB processing and an etching process method, aiming to solve the technical problem that the etching liquid is not fully contacted with the PCB in the background art, part of the copper foil cannot be completely etched, thereby increasing the etching time of the PCB material and reducing the etching effect.

[0005] The application provides an etching machine for PCB processing, which comprises an etching box body.

[0006] An observation window is arranged on one side of the etching box body.

[0007] An etching auxiliary module is arranged in the interior of the etching box body, and the etching auxiliary module comprises a conveying frame, a plurality of circular holes one are equidistantly arranged on the two sides of the conveying frame, the interiors of the two circular holes one opposite to each other are connected with the same conveying roller through bearings, one end of each of the plurality of conveying rollers is fixedly connected with a linkage gear, the two linkage gears on the same side are engaged, the exteriors of the plurality of conveying rollers on the upper side are fixedly connected with linkage pulleys, the exteriors of the plurality of linkage pulleys are drivingly connected with the same belt one, one side of the conveying frame is fixedly connected with a driving box, and the driving end of the driving box is connected with one end of one of the conveying rollers through a shaft coupling. Through the etching auxiliary module, the etching liquid is fully contacted with the PCB, part of the copper foil cannot be completely etched, leaving residues, affecting the conductivity of the circuit and the integrity of the circuit, thereby reducing the etching time of the PCB material and improving the etching effect.

[0008] In a preferred scheme, the etching auxiliary module further comprises a tool support plate, and the tool support plate is fixedly connected to the inside of the etching box body, a plurality of support seats are fixedly connected to the side of the tool support plate facing the conveying frame at equal distances, two limiting round holes are formed in the side of each of the plurality of support seats, a limiting cylinder is slidably connected to the inside of each of the plurality of limiting round holes, one end of each of the plurality of limiting cylinders on the same side is fixedly connected to the same shaking support frame, two reset springs I are fixedly connected to the two sides of each of the two shaking support frames, one side of each of the reset springs I is fixedly connected to one side of the support seat, the reset spring I surrounds the outside of the limiting cylinder, and the inlet and the outlet of the etching box body are respectively provided with an inlet conveying roller and an outlet conveying roller.

[0009] In a preferred scheme, the opposite sides of the two shaking support frames are fixedly connected with two guide cylinders, and the outside of the two guide cylinders on the same shaking support frame is slidably connected with the same vibration support block, the two sides of each of the two vibration support blocks are fixedly connected with two reset springs II, one side of each of the reset springs II is fixedly connected to one side of the shaking support frame, and the reset spring II surrounds the outside of the guide cylinder.

[0010] In a preferred scheme, one side of each of the two vibration support blocks is provided with a round hole II, and a rotating round rod is connected to the inside of each of the two round holes II through a bearing, one end of each of the two rotating round rods is fixedly connected with a cam, one side of each of the two vibration support blocks away from the cam is fixedly connected with a driving motor, the driving end of the driving motor is connected to one side of the rotating round rod through a shaft coupling, and one side of each of the two vibration support blocks is connected with two tool fixing rods through bolts, and one side of the tool fixing rod is fixedly connected to one side of the conveying frame.

[0011] In a preferred scheme, the two sides of the conveying frame are equally provided with a plurality of through holes, the inside of each of the plurality of through holes is slidably connected with a clamping cylinder, one end of each of the plurality of clamping cylinders is fixedly connected with a rubber clamping plate, one side of each of the plurality of clamping cylinders and the opposite side of the conveying frame is fixedly connected with the same extension spring, the extension spring surrounds the outside of the clamping cylinder, one side of each of the plurality of through holes is fixedly connected with two limiting rods, one side of each of the two limiting rods on the same side is connected with the same guide wheel I through a bearing, the two sides of the conveying frame are movably connected with guide wheels II at equal distances, the two sides of the conveying frame are provided with round holes III, the inside of each of the two round holes III is connected with the same rotating cylinder through a bearing, the outside of the rotating cylinder is fixedly connected with a winding disc at equal distances, one end of each of the plurality of clamping cylinders is fixedly connected with a winding rope body, the other end of the winding rope body is wound in the inside of the winding disc, one side of the conveying frame is fixedly connected with a U-shaped mounting seat, one side of the U-shaped mounting seat is fixedly connected with a winding motor, and the winding end of the winding motor is connected to one side of the rotating cylinder through a shaft coupling.

[0012] In a preferred scheme, the interior of the etching box is provided with a spraying module, and the spraying module comprises a limiting block, both sides of the etching box are provided with a circular hole four at equal intervals, the interiors of the opposite two circular hole fours are connected with the same spraying conveying pipe through bearings, the exteriors of the plurality of spraying conveying pipes are provided with spraying ports at equal intervals, and the interiors of the plurality of spraying ports are fixedly connected with spraying heads.

[0013] In a preferred scheme, one end of each of the plurality of spraying conveying pipes is fixedly connected with a belt wheel, the exteriors of the plurality of belt wheels are drivingly connected with the same belt two, one side of the exterior of the etching box is provided with a bidirectional motor, the driving end of the bidirectional motor is connected with one end of one of the spraying conveying pipes through a shaft coupling, one side of each of the plurality of limiting blocks is fixedly connected with a shunt pipe, and the shunt pipe is movably connected to the interior of the spraying conveying pipe.

[0014] In a preferred scheme, one end of each of the plurality of shunt pipes is fixedly connected with the same hollow conveying frame, one side of the exterior of the etching box is fixedly connected with a pump body, the discharge end of the pump body is connected to the interior of the hollow conveying frame through a connecting pipe, the feeding end of the pump body is connected to the lower interior of the etching box through a circulating pipe, one side of the etching box is provided with a chute, the interior of the chute is slidably connected with a screening plate, and the screening plate is located below the tool support plate.

[0015] In a preferred scheme, both sides of the etching box are connected with tool cover plates through hinges.

[0016] A use method of the etching machine for PCB processing, using the etching machine for PCB processing described above, comprising the following steps:

[0017] Step one, the PCB is conveyed to the interior of the conveying frame through the feeding conveying roller of the etching box, when the PCB moves to the area to be sprayed with etching liquid, the winding motor is started, the rotating cylinder is driven to rotate through the winding motor, the winding disc on the rotating cylinder is used to release the winding rope, so that the extension and retraction of the extension spring is used to reset, and the flexible clamping and fixing of the PCB is realized through the rubber clamping plate at one end of the clamping cylinder.

[0018] Step two, then the PCB is sprayed with etching liquid, the driving motor is started, the rotating cylinder is driven to rotate through the driving motor, when the cam rotates, the reset spring one and the limiting cylinder realize left and right limiting of the shaking support frame, the reset spring two and the guide cylinder realize up and down limiting of the vibration support block, so that the PCB on the conveying frame realizes left and right and up and down vibration when contacting with the etching liquid, thereby improving the permeability of the etching liquid to the PCB.

[0019] Step three, after etching is completed, the clamping and fixing of the PCB is released, then the driving box is started, and the PCB is conveyed to the discharge conveying roller through the conveying roller for discharging.

[0020] From the above, the etching machine for PCB processing provided by the present application has the advantages that the etching liquid is in full contact with the PCB, so that the copper foil is not left with residues and the conductivity of the circuit and the integrity of the circuit are not affected, thereby reducing the etching time of the PCB and improving the beneficial effects of etching. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The main structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0022] Figure 2 The side structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0023] Figure 3 The front structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0024] Figure 4 The etching auxiliary module structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0025] Figure 5 The etching auxiliary module structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0026] Figure 6 The conveying frame structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0027] Figure 7 The A part of the figure is an enlarged structure schematic diagram. Figure 5

[0028] The B part of the figure is an enlarged structure schematic diagram. Figure 8 Figure 5 The spraying module structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0029] Figure 9 The spraying module structure schematic diagram of the etching machine for PCB processing provided by the present application is shown in the figure.

[0030] Figure 10

[0031] ​​In the figure: 1, etching box; 2, observation window; 3, feeding conveying roller; 4, discharging conveying roller; 5, tool cover plate; 6, etching auxiliary module; 601, tool support plate; 602, conveying frame; 603, conveying roller; 604, belt one; 605, linkage gear; 606, drive box; 607, U-shaped mounting seat; 608, winding motor; 609, rotating cylinder; 610, winding disc; 611, winding rope body; 612, limiting rod; 613, guide wheel one; 614, guide wheel two; 615, clamping cylinder; 616, extension spring; 617, rubber clamping plate; 618, support seat; 619, limiting cylinder; 620, return spring one; 621, shaking support frame; 622, shock support block; 623, tool fixing rod; 624, drive motor; 625, guide cylinder; 626, return spring two; 627, rotating round rod; 628, cam; 7, spraying module; 701, screening plate; 702, spraying conveying pipe; 703, spraying head; 704, pulley; 705, belt two; 706, hollow conveying frame; 707, limiting block; 708, shunt pipe; 709, connecting pipe; 710, pump body; 711, circulating pipe; 712, bidirectional motor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0033] The etching machine for PCB processing disclosed in the present application is mainly applied to the scene that etching liquid is not completely contacted with a PCB, resulting in that part of copper foil cannot be completely etched, thereby increasing the etching time of the PCB material and reducing the etching effect.

[0034] Reference Figures 1-8 The etching machine for PCB processing comprises an etching box 1.

[0035] An observation window 2 is arranged on one side of the etching box 1.

[0036] The etching auxiliary module 6 is arranged in the interior of the etching box 1, the etching auxiliary module 6 comprises a conveying frame 602, and a plurality of circular holes one are equidistantly arranged on the two sides of the conveying frame 602, and the interiors of the two opposite circular holes one are both connected with the same conveying roller 603 through bearings, one end of the plurality of conveying rollers 603 is fixedly connected with a linkage gear 605, the two linkage gears 605 located on the same side are engaged, the exteriors of the plurality of conveying rollers 603 located on the upper side are all fixedly connected with linkage pulleys, the exteriors of the plurality of linkage pulleys are all drivingly connected with the same belt one 604, one side of the conveying frame 602 is fixedly connected with a driving box 606, and the driving end of the driving box 606 is connected with one end of one of the conveying rollers 603 through a shaft coupling, through the etching auxiliary module 6, the etching liquid can be fully contacted with the PCB board, so that the copper foil that is not etched completely is avoided, the residual material is left, the conductivity of the circuit and the integrity of the circuit are affected, and thus the etching time of the PCB board material is reduced, and the etching effect is improved.

[0037] Referring to Figures 1-8 The etching auxiliary module 6 further comprises a tool support plate 601, and the tool support plate 601 is fixedly connected to the interior of the etching box 1, one side of the tool support plate 601 facing the conveying frame 602 is fixedly connected with a support seat 618 at equal intervals, the plurality of support seats 618 are all provided with two limiting circular holes on one side, the plurality of limiting circular holes are all slidingly connected with a limiting cylinder 619, one end of the plurality of limiting cylinders 619 located on the same side is fixedly connected with the same shaking support frame 621, the two shaking support frames 621 are both fixedly connected with two reset springs one 620 on the two sides, one side of the reset spring one 620 is fixedly connected with one side of the support seat 618, and the reset spring one 620 surrounds the exterior of the limiting cylinder 619. The inlet and the outlet of the etching box 1 are respectively provided with an inlet conveying roller 3 and an outlet conveying roller 4.

[0038] Referring to Figures 1-8 The opposite sides of the two shaking support frames 621 are both fixedly connected with two guide cylinders 625, and the exteriors of the two guide cylinders 625 located on the same shaking support frame 621 are slidingly connected with the same vibration support block 622, the two vibration support blocks 622 are both fixedly connected with two reset springs two 626 on the two sides, one side of the reset spring two 626 is fixedly connected with one side of the shaking support frame 621, and the reset spring two 626 surrounds the exterior of the guide cylinder 625.

[0039] Referring to Figures 1-8Two sides of the two vibration supporting blocks 622 are both provided with a round hole two, and the interiors of the two round hole twos are both connected with a rotating round rod 627 through a bearing, one end of the two rotating round rods 627 is both fixedly connected with a cam 628, one side of the two vibration supporting blocks 622 away from the cam 628 is both fixedly connected with a driving motor 624, the driving end of the driving motor 624 is connected with one side of the rotating round rod 627 through a shaft coupler, one side of the two vibration supporting blocks 622 is both connected with two tool fixing rods 623 through bolts, one side of the tool fixing rod 623 is fixedly connected with one side of the conveying frame 602.

[0040] With reference to Figures 1-8 Both sides of the conveying frame 602 are both provided with a through hole at equal intervals, and the interiors of the multiple through holes are all connected with a clamping cylinder 615, one end of the multiple clamping cylinders 615 is all fixedly connected with a rubber clamping plate 617, the opposite side of the multiple clamping cylinders 615 and the conveying frame 602 is all fixedly connected with the same telescopic spring 616, the telescopic spring 616 surrounds the exterior of the clamping cylinder 615, one side of the multiple through holes is all fixedly connected with two limiting rods 612, one side of the two limiting rods 612 at the same side is both connected with the same guide wheel one 613 through a bearing, both sides of the conveying frame 602 are both movably connected with a guide wheel two 614, both sides of the conveying frame 602 are both provided with a round hole three, the interiors of the two round hole threes are both connected with the same rotating cylinder 609 through a bearing, the exterior of the rotating cylinder 609 is fixedly connected with a winding disc 610 at equal intervals, one end of the multiple clamping cylinders 615 is all fixedly connected with a winding rope body 611, the other end of the winding rope body 611 is wound in the interior of the winding disc 610, one side of the conveying frame 602 is fixedly connected with a U-shaped mounting seat 607, one side of the U-shaped mounting seat 607 is fixedly connected with a winding motor 608, the winding end of the winding motor 608 is connected with one side of the rotating cylinder 609 through a shaft coupler.

[0041] In a specific application scenario, the PCB is conveyed into the inside of the conveying frame 602 by the feeding conveying roller 3 of the etching box 1. When the PCB moves to the area to be sprayed with etching liquid, the winding motor 608 is started to rotate the rotating cylinder 609, the winding disc 610 on the rotating cylinder 609 is used to release the winding rope 611, so that the extension and retraction of the extension spring 616 is realized, the rubber clamping plate 617 at one end of the clamping cylinder 615 is used to realize flexible clamping and fixing of the PCB, then the PCB is sprayed with etching liquid, the driving motor 624 is started to rotate the rotating round rod 627 so that the cam 628 rotates, when the cam 628 rotates, the reset spring one 620 and the limiting cylinder 619 are used to realize left and right limiting of the shaking support frame 621, the reset spring two 626 and the guide cylinder 625 are used to realize up and down limiting of the shaking support block 622, so that the PCB on the conveying frame 602 realizes left and right and up and down shaking when contacting with the etching liquid, thereby improving the permeability of the etching liquid to the PCB. After etching, the clamping and fixing of the PCB is released, then the driving box 606 is started, the PCB is conveyed to the discharge conveying roller 4 by the conveying roller 603 for discharging, the etching auxiliary module 6 is used to make the etching liquid contact with the PCB completely, avoid that part of the copper foil is not etched completely, leave residues, affect the conductivity of the circuit and the integrity of the circuit, thereby reducing the etching time of the PCB and improving the etching effect.

[0042] With reference to Figure 1 , Figure 9 and Figure 10 , the inside of the etching box 1 is provided with a spraying module 7, and the spraying module 7 comprises a limiting block 707. The two sides of the etching box 1 are each provided with a circular hole four at equal intervals. The insides of the two opposite circular holes four are each connected with the same spraying conveying pipe 702 through a bearing. The outsides of the plurality of spraying conveying pipes 702 are each provided with a spraying port at equal intervals. The insides of the plurality of spraying ports are each fixedly connected with a spraying head 703.

[0043] With reference to Figure 1 , Figure 9 and Figure 10 , one end of each of the plurality of spraying conveying pipes 702 is fixedly connected with a belt wheel 704. The outsides of the plurality of belt wheels 704 are drivingly connected with the same belt two 705. One side of the etching box 1 is provided with a bidirectional motor 712. The driving end of the bidirectional motor 712 is connected with one end of one of the spraying conveying pipes 702 through a shaft coupling. One side of each of the plurality of limiting blocks 707 is fixedly connected with a shunt pipe 708. The shunt pipe 708 is movably connected to the inside of the spraying conveying pipe 702.

[0044] With reference to Figure 1 , Figure 4 , Figure 9 and Figure 10The one end of the plurality of shunt pipes 708 is fixedly connected with the same hollow conveying frame 706, the outside of the etching box 1 is fixedly connected with the pump body 710, the discharge end of the pump body 710 is connected with the inside of the hollow conveying frame 706 through the connecting pipe 709, the feeding end of the pump body 710 is connected with the lower inside of the etching box 1 through the circulating pipe 711, the etching box 1 is provided with a chute on one side, the inside of the chute is slidably connected with the sieve plate 701, and the sieve plate 701 is located below the tool support plate 601.

[0045] In a specific application scenario, when the etching liquid is sprayed, the pump body 710 sucks the etching liquid at the bottom of the etching box 1 at this time, the etching liquid is conveyed to the inside of the hollow conveying frame 706 through the connecting pipe 709, the etching liquid is conveyed to the inside of the spraying conveying pipe 702 through the plurality of shunt pipes 708, and then the etching liquid is sprayed on the PCB board through the plurality of spraying heads 703, and simultaneously, the bidirectional motor 712 is started, the bidirectional motor 712 drives one of the spraying conveying pipes 702 to rotate bidirectionally, so that the remaining spraying conveying pipes 702 are driven by the belt two 705 to rotate bidirectionally at the same time, so that the etching liquid is uniformly covered on the surface of the PCB board, the uniformity of etching is ensured, and the reacted solution is filtered through the sieve plate 701 for secondary utilization of the etching liquid.

[0046] Referring to Figure 1 Both sides of the etching box 1 are connected with the tool cover plate 5 through the hinges.

[0047] A use method of the etching machine for PCB board processing, using the etching machine for PCB board processing as described above, comprising the following steps:

[0048] Step one, the PCB board is conveyed to the inside of the conveying frame 602 through the feeding conveying roller 3 of the etching box 1, when the PCB board moves to the area to be sprayed with the etching liquid, the winding motor 608 is started, the rotating cylinder 609 is driven to rotate by the winding motor 608, the winding rope body 611 is unwound by the winding disc 610 on the rotating cylinder 609, so that the reset is realized by the elasticity of the extension spring 616, and the PCB board is flexibly clamped and fixed by the rubber clamping plate 617 at one end of the clamping cylinder 615;

[0049] Step two, then the etching liquid is sprayed on the PCB board, the driving motor 624 is started, the rotating round rod 627 is driven to rotate by the driving motor 624, when the cam 628 rotates, the left-right limiting of the shaking support frame 621 is realized by the reset spring one 620 and the limiting cylinder 619, and the up-down limiting of the shaking support block 622 is realized by the reset spring two 626 and the guide cylinder 625, so that the PCB board on the conveying frame 602 realizes left-right and up-down shaking when contacting with the etching liquid, thereby improving the permeability of the etching liquid to the PCB board;

[0050] Step three, after etching is finished, the clamping and fixing of the PCB is released, then the driving box 606 is started, the PCB is transported to the discharge conveying roller 4 through the conveying roller 603 for discharging.

[0051] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A PCB board processing etching machine, characterized in that, Including an etching box (1); An observation window (2), the observation window (2) being arranged on one side of the etching box (1); The etching auxiliary module (6) is arranged inside the etching box (1), and the etching auxiliary module (6) includes a conveying frame (602), and circular holes (1) are opened at equal distances on both sides of the conveying frame (602), and the interiors of the two opposite circular holes (1) are connected to the same conveying roller (603) through bearings, one end of the multiple conveying rollers (603) are fixedly connected to a linkage gear (605), the two linkage gears (605) located on the same side are meshed, the outsides of the multiple conveying rollers (603) located on the upper side are fixedly connected to a linkage pulley, the external transmission of the multiple linkage pulleys is connected to the same belt (604), one side of the conveying frame (602) is fixedly connected to a drive box (606), the drive box (6 06) is connected to one end of one of the conveying rollers (603) through a coupling, and the etching liquid is completely in contact with the PCB board through the etching auxiliary module (6), so as to avoid that part of the copper foil is not completely etched away, leaving residues, and affecting the conductivity of the circuit and the integrity of the circuit. The etching auxiliary module (6) also includes a tool support plate (601), and the tool support plate (601) is fixedly connected to the inside of the etching box (1). The tool support plate (601) is fixedly connected to a support seat (618) at an equal distance on one side facing the conveying frame (602). Two limiting circular holes are opened on one side of the multiple support seats (618), and the interiors of the multiple limiting circular holes are slidably connected to the limiting cylinder (619). The multiple limiting cylinders (619) located on the same side are fixedly connected to the tool support plate (601). One end of the cylinder (619) is fixedly connected to the same shaking support frame (621), and two sides of the two shaking support frames (621) are fixedly connected to two return springs (620), one side of the return spring (620) is fixedly connected to one side of the support seat (618), and the return spring (620) surrounds the outside of the limiting cylinder (619). The feed port and the discharge port of the etching box (1) are respectively provided with a feed conveying roller (3) and a discharge conveying roller (4). The opposite side of the two shaking support frames (621) is fixedly connected to two guide cylinders (625), and the outside of the two guide cylinders (625) located on the same shaking support frame (621) is slidably connected to the same vibration support block (622). Two return springs (626) are fixedly connected to both sides of the two vibration support blocks (622). One side of the return spring (626) is fixedly connected to one side of the shaking support frame (621). The return spring (626) surrounds the outside of the guide cylinder (625). One side of the two vibration support blocks (622) is provided with a circular hole (627). The inside of the two circular holes (627) is connected to a rotating rod (627) through a bearing. One end of the two rotating rods (627) is fixedly connected to a cam (628). The side of the two vibration support blocks (622) away from the cam (628) is fixedly connected to a drive motor (624). The drive end of the drive motor (624) is connected to one side of the rotating rod (627) through a coupling.One side of each of the two vibration support blocks (622) is connected to two tool fixing rods (623) via bolts, and one side of the tool fixing rod (623) is fixedly connected to one side of the conveying frame (602).

2. A PCB board processing etching machine according to claim 1, characterized in that, The conveying frame (602) is provided with through-holes at equal distances on both sides, and the interiors of the multiple through-holes are slidably connected to clamping cylinders (615), one end of the multiple clamping cylinders (615) is fixedly connected to a rubber clamping plate (617), the multiple clamping cylinders (615) and the opposite side of the conveying frame (602) are fixedly connected to the same telescopic spring (616), the telescopic spring (616) surrounds the outside of the clamping cylinder (615), one side of the multiple through-holes is fixedly connected to two limit rods (612), one side of the two limit rods (612) on the same side is connected to the same guide wheel (613) through a bearing, and the two sides of the conveying frame (602) are movably connected at equal distances. A guide wheel (614) and circular holes (3) are provided on both sides of the conveying frame (602). The interiors of the two circular holes (3) are connected to the same rotating cylinder (609) through bearings. The exterior of the rotating cylinder (609) is fixedly connected to a winding disk (610) at equal distances. One end of each of the multiple clamping cylinders (615) is fixedly connected to a winding rope body (611). The other end of the winding rope body (611) is wound inside the winding disk (610). One side of the conveying frame (602) is fixedly connected to a U-shaped mounting seat (607). One side of the U-shaped mounting seat (607) is fixedly connected to a winding motor (608). The winding end of the winding motor (608) is connected to one side of the rotating cylinder (609) through a coupling.

3. A PCB board processing etching machine according to claim 2, characterized in that, A spray module (7) is provided inside the etching box (1), and the spray module (7) includes a limit block (707). Four circular holes are provided at equal distances on both sides of the etching box (1), and the interiors of two opposing circular holes are connected to a same spray delivery pipe (702) via bearings. Spray ports are provided at equal distances on the exteriors of the plurality of spray delivery pipes (702), and the interiors of the plurality of spray ports are fixedly connected to a spray head (703).

4. A PCB board processing etching machine according to claim 3, characterized in that, One end of each of the plurality of spraying and conveying pipes (702) is fixedly connected to a pulley (704), and the external transmission of the plurality of pulleys (704) is connected to the same belt 2 (705). A bidirectional motor (712) is provided on one side of the outside of the etching box (1), and the driving end of the bidirectional motor (712) is connected to one end of one of the spraying and conveying pipes (702) through a coupling. One side of each of the plurality of limit blocks (707) is fixedly connected to a diverter pipe (708), and the diverter pipe (708) is movably connected to the inside of the spraying and conveying pipe (702).

5. A PCB board processing etching machine according to claim 4, characterized in that, One end of the plurality of diversion pipes (708) is fixedly connected to the same hollow conveying frame (706), and the outer side of the etching box (1) is fixedly connected to a pump body (710), the discharge end of the pump body (710) is connected to the interior of the hollow conveying frame (706) through a connecting pipe (709), and the feed end of the pump body (710) is connected to the lower interior of the etching box (1) through a circulation pipe (711), and a chute is provided on one side of the etching box (1), and the interior of the chute is slidably connected to a sieve plate (701), and the sieve plate (701) is located below the tooling support plate (601).

6. A PCB board processing etching machine according to claim 5, characterized in that, Both sides of the etching box (1) are connected to tooling covers (5) via hinges.

7. A method for using an etching machine for PCB board processing, using the etching machine for PCB board processing according to claim 6, characterized in that: The steps include: Step 1: The PCB board is transported to the inside of the transport frame (602) through the feed conveyor roller (3) of the etching box (1). When the PCB board moves to the area to be sprayed with etching liquid, the winding motor (608) is started, and the rotating cylinder (609) is driven to rotate by the winding motor (608). The winding drum (610) on the rotating cylinder (609) is used to release the winding rope body (611), so that the retractability of the telescopic spring (616) is used to achieve reset, and the rubber clamping plate (617) at one end of the clamping cylinder (615) is used to flexibly clamp and fix the PCB board; Step 2: Then, the etching liquid is sprayed on the PCB board, and the driving motor (624) is started. The driving motor (624) drives the rotating rod (627) to rotate the cam (628). When the cam (628) rotates, the return spring (620) and the limit cylinder (619) limit the shaking support frame (621) to the left and right, and the return spring (626) and the guide cylinder (625) limit the vibration support block (622) to the upper and lower positions, so that the PCB board on the conveying frame (602) can vibrate left and right and up and down when it contacts the etching liquid, thereby improving the permeability of the etching liquid to the PCB board; Step 3: After etching is completed, the clamping and fixing of the PCB is released, and then the drive box (606) is started to transport the PCB board to the discharge conveying roller (4) through the conveying roller (603) for discharge.

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