A device for improving oxidation of product coating after organic film stripping and its use method

Abstract

The present invention belongs to the technical field of metal material coating oxidation, and discloses a device for improving the coating oxidation of products after organic film stripping and a method for using the device, comprising a chassis, wherein both end boxes near the bottom of the chassis are penetrated and clamped with discharge plugs for discharging the coating solution, and a magnetic plate frame is fixedly welded on the outer wall of one end of the chassis, and further comprising: the chassis is provided with a feeding and discharging structure and a symmetrical stretching barrier structure and a piston cleaning structure, and the bellows is stretched by the downward movement of the vertical rod to generate a suction force inside the bellows, thereby guiding the water in the water tank into the bellows, and when the vertical rod moves upward, the bellows is squeezed, so that the water drawn into the bellows in advance can pass through the pipe and the hollow ball valve, and finally be ejected with impact from the water plate, and the ejected water can clean the PCB board that has been soaked in the coating in the grid groove plate, thereby avoiding residual solution on the board body, and preventing the oxide layer of the PCB board from being distorted due to untimely cleaning.

Description

Technical Field

[0001] The invention belongs to the technical field of metal material coating oxidation, and in particular is a device for improving the coating oxidation of products after organic film stripping and a method for using the device. Background Art

[0002] PCB (Printed Circuit Board) is a key carrier used to connect and support electronic components by forming conductive lines on an insulating substrate through electronic printing technology. The base material is made of insulating materials such as glass fiber (FR-4) and ceramics, and the conductive layer is made of copper foil etching to form circuits and realize the interconnection of components.

[0003] In the existing technology, PCB boards need to be pre-treated before oxidation coating is performed. Some methods use inorganic stripping methods, while others use organic stripping methods. After the organic stripping treatment, PCBs cannot be immediately soaked and cleaned with a solution during oxidation coating treatment. This will greatly increase the variation in the oxygen layer and have an adverse effect on the PCB. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a device and a method for improving the oxidation of the coating of products after organic film stripping.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a device for improving the oxidation of the coating of products after organic film stripping, comprising a chassis, wherein both ends of the chassis near the bottom are provided with discharge plugs for discharging the coating solution, and a magnetic plate frame is fixedly welded to the outer wall of one end of the chassis. The device also includes: a feeding and discharging structure, a symmetrical stretching barrier structure, and a piston cleaning structure provided on the chassis;

[0006] The feeding and discharging structure includes a grid slot plate, on the top of which a magnetic plate plug is tightly clamped, which is used to separate and immerse multiple PCB boards at one time;

[0007] A set of symmetrical tensile barrier structures includes symmetrically installed folding curtains, which are used to prevent other substances from entering the chassis when the PCB board is undergoing solution immersion plating;

[0008] A set of symmetrical piston cleaning structures includes symmetrically installed water-discharging plates. A hollow ball valve is fixedly connected to one end plate body of each of the two water-discharging plates, which is used to enable the two water-discharging plates to reciprocate up and down to clean the solution residue on multiple PCB boards in the grid groove plate.

[0009] Preferably, the feeding and discharging structure specifically includes a telescopic electric cylinder fixedly connected to the outer wall of the bottom end of the chassis, the movable end of the telescopic electric cylinder and the bottom plate of the chassis are slidably connected, and the top of the movable end of the telescopic electric cylinder is fixedly connected to a clamping plate frame, the clamping plate frame and the bottom outer wall of the grid groove plate can be intermittently fitted and snapped together, and the outer walls on both sides of the top end of the magnetic plate plug are fixedly connected with abutment plates, and the top end of the magnetic plate plug can be intermittently magnetically connected to the magnetic plate frame.

[0010] Preferably, the symmetrical stretching barrier structure further includes two inclined slot blocks respectively, a rotating plate is hingedly connected between the two inclined slot blocks, a rotating rod is fixedly connected to the center position of the rotating plate, and the rod body of the rotating rod and the chassis body are movably connected.

[0011] Preferably, a torsion spring is fixedly connected between the rotating plate and the inner wall of the chassis, the top outer wall of one of the inclined slot blocks can be fitted and connected with the bottom outer wall of the abutment plate, and a pull rope is fixedly connected to the top outer wall of the other inclined slot block, and the rope body of the pull rope is slidably connected to the inner wall of the cavity of the chassis.

[0012] Preferably, the rope body of the pull rope is also fixedly connected to the curtain body of the folding curtain, one end of the folding curtain is fixedly connected to the inner wall of one end of the chassis, and the bottom of the other end of the folding curtain is fixedly connected to an ear plate, and a sliding rod is slidably connected to the ear plate, and both ends of the sliding rod are fixedly connected to the inner wall of the chassis, and a spring is jointly fixedly connected between the inner wall of the chassis and the ear plate body.

[0013] Preferably, the symmetrical piston cleaning structure also includes a turntable fixedly connected to the rotating rod body, a turn handle is fixedly connected to the side wall of the other end of the turntable, a rectangular groove plate is slidably connected to the turn handle, and a vertical rod is fixedly connected to the top outer wall of the rectangular groove plate.

[0014] Preferably, a positioning block is fitted and slidably connected to the rod body of the vertical rod, and the positioning block is specifically fixedly connected to the outer wall of the chassis. A bellows is fixedly connected to the top rod body of the vertical rod, and a suction pipe is fixedly connected to the top of the bellows. A water tank is fixedly connected to the top of the suction pipe, and a connecting plate is fixedly connected to the outer wall of the water tank. The other end plate of the connecting plate is fixedly connected to the magnetic plate frame plate.

[0015] Preferably, a delivery pipe is fixedly connected to the outer wall of one end of the corrugated pipe near the top, and a one-way valve is fixedly connected to the pipe body of the delivery pipe and the suction pipe. The hollow ball valve is movably connected to the inner wall of the pipe body at the other end of the delivery pipe. An oblique plate is fixedly connected to the inner wall of the top end of the hollow ball valve, and an elastic telescopic part is jointly hinged between the top outer wall of the oblique plate and the top inner wall of the delivery pipe.

[0016] Preferably, a rotating shaft is movably sleeved on the pipe body of the delivery pipe, and a plurality of water wheel plates are fixedly connected to the outer wall of the rotating shaft in a surrounding manner. A tooth block 1 is fixedly connected to the outer walls of both sides of the rotating shaft, and a tooth block 2 is slidably connected to the outer walls of the two tooth blocks 1, and a spring 2 is fixedly connected to the outer wall of one end of the two tooth blocks 2. A tooth groove that can be fixedly connected to the two springs 2 is provided on the outer walls of both sides of the delivery pipe, and the inner wall of the tooth groove is slidably connected to the tooth block 2.

[0017] A method for improving the oxidation of the coating of a product after organic film stripping. The specific steps of the method are as follows:

[0018] S1. Place the PCBs one by one into the grid slots, insert the magnetic plate into the grid slots, and then connect the grid slots to the clamping plate frame to stabilize them. Then start the telescopic electric cylinder to move them down and completely enter the chassis. They are then immersed and oxidized by the coating solution prepared in advance and introduced into the chassis.

[0019] S2. When the magnetic plate plug is moving downward, the abutment plate installed on it contacts an inclined slot block, driving it to move downward, causing it to be forced to move downward to press the rotating plate, driving the rotating plate and the rotating rod to rotate synchronously, thereby causing the torsion spring to deform. The passively deformed rotating plate will drive the other inclined slot block to move upward, which will loosen the pull rope installed on the other inclined slot block, causing the folding curtain and the ear plate set on the rope body to produce elastic reset under the drive of spring 1, thereby driving the folding curtain to automatically unfold, sealing the top of the chassis, and preventing some other substances from entering the solution and affecting the immersion process of the PCB board and the solution;

[0020] S3. Combined with the above steps, when the rotating rod rotates passively, it will drive the turntable and the rotating handle to rotate synchronously. The rotation of the rotating handle will slide horizontally in the rectangular slot plate, generating a rotation-to-linear motion trajectory, which can drive the vertical rod fixed on the top of the rectangular slot plate to move up and down under the limit of the positioning block. The downward movement of the vertical rod will stretch the bellows to generate suction force inside it, thereby guiding the water in the water tank into the bellows. When the vertical rod moves upward, it will squeeze the bellows, so that the water drawn into it in advance can pass through the pipe and the hollow ball valve, and finally be ejected from the water plate with impact force. The ejected water can clean the PCB board that has been soaked in the plating in the grid slot plate, avoiding residual solution on the board body, and causing oxide layer mutation on the PCB board body due to untimely cleaning.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention can indirectly automatically unfold the folding curtain in the stretching barrier structure by driving the telescopic electric cylinder, seal the top of the chassis, and prevent other substances from entering the solution and affecting the immersion process of the PCB board and the solution.

[0023] The present invention moves the vertical rod in the piston cleaning structure upward, thereby squeezing the bellows. In this way, water drawn into the bellows in advance can pass through the delivery pipe and the hollow ball valve, and finally be ejected from the water-discharging plate with impact force. The ejected water can clean the PCB boards that have been soaked and plated in the grid groove plate, thereby avoiding residual solution on the boards, which would cause oxide layer mutation on the PCB boards if not cleaned in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the chassis and folding curtain of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall planar structure of the present invention;

[0027] Figure 4 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0028] Figure 5 This is a schematic diagram of the split structure of the grid slot plate and magnetic plate plug of the present invention;

[0029] Figure 6 It is a schematic diagram of the overall local structure of the present invention;

[0030] Figure 7 This is a schematic structural diagram of the water diversion plate of the present invention;

[0031] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at point B in the middle;

[0032] Figure 9 For the present invention Figure 8 Schematic diagram of the partially enlarged structure at point C in the middle

[0033] Figure 10 It is a schematic diagram of the partial planar structure of the piston cleaning structure of the present invention.

[0034] In the picture:

[0035] 1. Chassis; 101. Discharge plug; 102. Magnetic plate rack;

[0036] 2. Material feeding and discharging structure; 201, telescopic electric cylinder; 202, clamping plate frame; 203, grid slot plate; 204, magnetic plate plug; 205, stopper plate;

[0037] 3. Tensile barrier structure; 301. Chute block; 302. Rotating plate; 303. Rotating rod; 304. Torsion spring; 305. Pull rope; 306. Folding curtain; 307. Ear plate; 308. Sliding rod; 309. Spring 1;

[0038] 4. Piston cleaning structure; 401. Turntable; 402. Turning handle; 403. Rectangular slot plate; 404. Vertical rod; 405. Positioning block; 406. Bellows; 407. Water tank; 408. Connecting plate; 409. Delivery pipe; 410. One-way valve; 411. Hollow ball valve; 412. Water-discharging plate; 413. Oblique plate; 414. Rotating shaft; 415. Water wheel plate; 416. Gear block 1; 417. Gear block 2; 418. Spring 2; 419. Gear groove. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] like Figures 1 to 10 As shown, the present invention provides a device for improving the oxidation of the coating of products after organic film stripping, comprising a chassis 1, with discharge plugs 101 for discharging the coating solution being clamped through both ends of the chassis near the bottom, a magnetic plate frame 102 being fixedly welded to the outer wall of one end of the chassis 1, and further comprising: a feed and discharge structure 2, a symmetrical stretching barrier structure 3, and a piston cleaning structure 4 being provided on the chassis 1;

[0041] The feeding and discharging structure 2 includes a grid slot plate 203, and a magnetic plate plug 204 is tightly clamped on the top of the grid slot plate 203, which is used to separate and immerse multiple PCB boards at one time;

[0042] A set of symmetrical tensile barrier structures 3 includes symmetrically installed folding curtains 306, which are used to prevent other substances from entering the chassis 1 when the PCB board is undergoing solution immersion plating;

[0043] A set of symmetrical piston cleaning structures 4 includes symmetrically installed water-discharging plates 412. A hollow ball valve 411 is fixedly connected to one end plate body of each of the two water-discharging plates 412, which is used to enable the two water-discharging plates 412 to reciprocate up and down to clean the solution residue on multiple PCB boards in the grid groove plate 203.

[0044] The above solution is adopted: by placing the PCBs one by one into the grid slot plate 203, then clamping the magnetic plate plug 204 into the grid slot plate 203, and then clamping the grid slot plate 203 onto the clamping plate frame 202, and then stabilizing it, and then starting the telescopic electric cylinder 201 to drive it to move downward, completely entering the chassis 1, and being immersed and oxidized by the plating solution prepared in advance and introduced into the chassis 1;

[0045] When the abutment plate 205 installed on the magnetic plate plug 204 contacts one of the chute blocks 301, it drives it to move downward, so that it is forced to move downward to press the rotating plate 302, driving the rotating plate 302 and the rotating rod 303 to rotate synchronously, thereby driving the torsion spring 304 to deform. The passively deformed rotating plate 302 drives the other chute block 301 to move upward, which relaxes the pull rope 305 installed on the other chute block 301, so that the folding curtain 306 and the ear plate 307 provided on the rope body are elastically reset under the drive of the spring 1 309, thereby driving the folding curtain 306 to automatically unfold, sealing the top of the chassis 1, and preventing some other substances from entering the solution and affecting the immersion process of the PCB board and the solution;

[0046] When the rotating rod 303 rotates passively, it will drive the turntable 401 and the rotating handle 402 to rotate synchronously. The rotation of the rotating handle 402 will slide horizontally in the rectangular slot plate 403, generating a rotation-to-linear motion trajectory, which can drive the vertical rod 404 fixed on the top of the rectangular slot plate 403 to move up and down under the limit of the positioning block 405. The downward movement of the vertical rod 404 will stretch the bellows 406 to generate suction force inside it, thereby guiding the water in the water tank 407 into the bellows 406. When the vertical rod 404 moves upward, it will squeeze the bellows 406, so that the water drawn into it in advance can pass through the delivery pipe 409 and the hollow ball valve 411, and finally be ejected with impact force from the water plate 412. The ejected water can clean the PCB board that has been soaked in the plating in the grid slot plate 203, avoiding residual solution on the board body, which will cause the oxide layer of the PCB board to be distorted if it is not cleaned in time.

[0047] Here is a brief description of organic film stripping. PCB products will be immersed in the film to fully expand the dry film. Large pieces of dry film will fall off as a whole. Nitrogen bubbling is added in this section of the tank. During the soaking process, the liquid surface of the solution is relatively still. The defoaming agent will gather on the liquid surface to form an oil film. Increasing nitrogen bubbling breaks up the aggregation of the defoaming agent and prevents it from forming an oil film. Then most of the dry film is removed by water washing. The next step is spray stripping. The residual dry film on the product and the dry film on the circuit that is difficult to remove are finally removed by increasing the stripping ability by increasing the pressure. Then, water washing is performed again to remove the residual dry film and most of the solution. The next step is pickling to neutralize the residual stripping solution. The next step is water washing to clean the residual pickling solution on the product surface. The last step is drying and baking. The product is completed at this stage.

[0048] The feeding and discharging structure 2 specifically also includes a telescopic electric cylinder 201 fixedly connected to the outer wall of the bottom end of the chassis 1. The movable end of the telescopic electric cylinder 201 is slidably connected to the bottom plate of the chassis 1, and the top of the movable end of the telescopic electric cylinder 201 is fixedly connected to a clamping frame 202. The clamping frame 202 and the bottom outer wall of the grid groove plate 203 can be intermittently fitted and snapped together. The outer walls on both sides of the top of the magnetic plate plug 204 are fixedly connected with abutment plates 205, and the top of the magnetic plate plug 204 can be intermittently magnetically connected to the magnetic plate frame 102.

[0049] The above scheme is adopted: the magnetic plate plug 204 is inserted into the grid slot plate 203, and then the grid slot plate 203 is clamped to the clamping plate frame 202 to stabilize it, and then the telescopic electric cylinder 201 is started to drive it to move downward, completely enter the chassis 1, and be soaked and oxidized by the plating solution that has been prepared and introduced in advance in the chassis 1. When the grid slot plate 203 enters the chassis 1, it is continuously passively moved downward. After moving down to a certain distance, the abutment plate 205 installed on the magnetic plate plug 204 will contact an inclined slot block 301, driving it to move downward.

[0050] The symmetrical tensile barrier structure 3 also includes two inclined slot blocks 301, a rotating plate 302 is hinged between the two inclined slot blocks 301, a rotating rod 303 is fixedly connected to the center position of the rotating plate 302, the rod body of the rotating rod 303 is movably connected to the chassis 1, a torsion spring 304 is fixedly connected between the rotating plate 302 and the inner wall of the chassis 1, the top outer wall of one inclined slot block 301 can be fitted and connected to the bottom outer wall of the plate 205, and the top outer wall of the other inclined slot block 301 is fixedly connected to the pull rope 30 5. The rope body of the pull rope 305 is slidably connected to the inner wall of the cavity of the chassis 1, and the rope body of the pull rope 305 is also fixedly connected to the curtain body of the folding curtain 306. One end of the folding curtain 306 is fixedly connected to the inner wall of one end of the chassis 1, and the bottom of the other end of the folding curtain 306 is fixedly connected to an ear plate 307. The ear plate 307 is slidably connected to a slide rod 308. Both ends of the slide rod 308 are fixedly connected to the inner wall of the chassis 1, and a spring 309 is fixedly connected between the inner wall of the chassis 1 and the plate body of the ear plate 307.

[0051] The above scheme is adopted: the inclined slot block 301 moves downward, so that it is forced to move downward to press the rotating plate 302, driving the rotating plate 302 and the rotating rod 303 to rotate synchronously, thereby driving the torsion spring 304 to deform, and the rotating plate 302 after passive deformation drives the other inclined slot block 301 to move upward, which relaxes the pull rope 305 installed on the other inclined slot block 301, so that the folding curtain 306 and the ear plate 307 provided on the rope body will produce elastic reset under the drive of the spring 1 309, thereby driving the folding curtain 306 to automatically unfold, sealing the top of the chassis 1, and preventing some other substances from entering the solution and affecting the immersion process of the PCB board and the solution. When the rotating plate 302 is no longer subjected to downward pressure, the torsion spring 304 will automatically drive it to reset. Figure 6 As shown, it is worth noting that during the passive stretching process of the pull rope 305 in the chassis 1, the rope inlet and outlet of the chassis 1 are rounded to avoid strong wear of the rope during the passive stretching process.

[0052] The symmetrical piston cleaning structure 4 also includes a turntable 401 fixedly connected to the rod body of the rotating rod 303, a turntable 401 is fixedly connected to the side wall of the other end of the turntable 401, a turn handle 402 is fixedly connected to the turn handle 402, a rectangular slot plate 403 is slidably connected to the top outer wall of the rectangular slot plate 403, a vertical rod 404 is fixedly connected to the top outer wall of the rectangular slot plate 403, a positioning block 405 is slidably connected to the rod body of the vertical rod 404, the positioning block 405 is specifically fixedly connected to the outer wall of the chassis 1, a bellows 406 is fixedly connected to the top rod body of the vertical rod 404, a suction pipe is fixedly connected to the top of the bellows 406, a water tank 407 is fixedly connected to the top of the suction pipe, a connecting plate 408 is fixedly connected to the outer wall of the water tank 407, and the other end plate of the connecting plate 408 is fixedly connected to the plate body of the magnetic plate frame 102;

[0053] A delivery pipe 409 is fixedly connected to the outer wall of one end of the bellows 406 near the top, and a one-way valve 410 is fixedly connected to the pipe body of the delivery pipe 409 and the pumping pipe. A hollow ball valve 411 is movably connected to the inner wall of the other end of the pipe body of the delivery pipe 409. An oblique plate 413 is fixedly connected to the inner wall of the top end of the hollow ball valve 411. An elastic telescopic part is hinged between the outer wall of the top end of the oblique plate 413 and the inner wall of the top end of the delivery pipe 409. A rotating shaft 414 is movably connected to the pipe body of the delivery pipe 409. A plurality of water wheel plates 415 are fixedly connected to the outer wall in a surrounding manner, and a tooth block 1 416 is fixedly connected to the outer walls on both sides of the rotating shaft 414. The outer walls of the two tooth blocks 1 416 are both fitted and slidably connected with a tooth block 2 417, and a spring 2 418 is fixedly connected to the outer wall of one end of the two tooth blocks 2 417. The outer walls of both sides of the delivery pipe 409 are provided with a tooth groove 419 that can be fixedly connected to the two springs 2 418, and the inner wall of the tooth groove 419 is fitted and slidably connected to the tooth block 2 417.

[0054] The above scheme is adopted: in the above-mentioned scheme, when the rotating rod 303 is passively rotated, it will drive the turntable 401 and the rotating handle 402 to rotate synchronously. The rotation of the rotating handle 402 will slide horizontally in the rectangular slot plate 403, generating a rotation-to-linear motion trajectory, which can drive the vertical rod 404 fixed on the top of the rectangular slot plate 403 to move back and forth under the limit of the positioning block 405. The downward movement of the vertical rod 404 will stretch the bellows 406 to generate a suction force inside it, thereby guiding the water in the water tank 407 into the bellows 406. When the vertical rod 404 moves up, it will squeeze the bellows 406, so that the water drawn into it in advance can pass through the pipe 409 and the hollow ball valve 411, and finally be ejected with impact from the water plate 412. The ejected water can clean the PCB board that has been soaked in the plating in the grid slot plate 203, so as to avoid residual solution on the board body. If it is not cleaned in time, it will cause the oxide layer of the PCB board to change, such as Figure 6 As shown, the downward movement of the grid slot plate 203 indirectly drives the handle 402 and the rectangular slot plate 403 to rotate counterclockwise to the bottom of the turntable 401. When the turntable 302 is passively reset, it indirectly drives the handle 402 and the rectangular slot plate 403 to rotate upward to the top of the turntable 401, thereby driving the bellows 406 to achieve intermittent upward and downward expansion;

[0055] At the same time, when the water entering the delivery pipe 409 flows into the hollow ball valve 411 with impact force, it will first pass through the water wheel plate 415, and the water flow drives the water wheel plate 415 to rotate counterclockwise. The wheel plate of the water wheel plate 415 is specifically composed of seven plates, three short, three long and one longer. The long plate can play a certain role in rotating and guiding the flow when it contacts the flowing water, avoiding the situation where plates of the same length generate mutual checks and balances in the same direction when contacting the water, making it impossible to rotate or intermittently stagnant. Figure 8 and Figure 10As shown, the water wheel plate 415 is installed in the upper half of the delivery pipe 409, which ensures that the lower end of the water wheel plate 415 is affected by the water flow more than the upper end, ensuring counterclockwise rotation. In this way, the longest water wheel plate 415 can intermittently contact the oblique plate 413 during the rotation process, so that the hollow ball valve 411 and the water plate 412 are driven by force to swing back and forth to a certain extent, avoiding the blind spots of fixed-angle water spraying, such as complex curved grooves. The swinging water plate 412 performs periodic scanning motion, so that the water flow trajectory changes with time, achieving more uniform infiltration coverage of the target surface, better cleaning the residual plating oxide solution on the PCB board, and at the same time In order to avoid the possibility of uncontrolled water flow causing the water wheel plate 415 to rotate clockwise, tooth block 1 416 is specially installed on both ends of the water wheel plate 415. In this way, once the water wheel plate 415 rotates clockwise, tooth block 1 416 will fit and engage with tooth block 2 417 to prevent the water wheel plate 415 from continuing to rotate clockwise. During the counterclockwise rotation of the water wheel plate 415, tooth block 1 416 will intermittently fit and squeeze with tooth block 2 417, so that it is forced to squeeze spring 2 418 in tooth groove 419. Spring 2 418 is deformed, and its own elastic force can drive tooth block 2 417 to automatically reset when there is no force.

[0056] One point that needs to be supplemented is:

[0057] The formula of the plating oxidation solution is as follows:

[0058] Alkaline oxidizing solution: sodium hydroxide (NaOH 50-100g / L) + sodium chlorite (NaClO2 30-50g / L)

[0059] The time is controlled within 3-8 minutes, and the specific time needs to be controlled according to the actual situation;

[0060] The upward movement of the telescopic electric cylinder 201 drives the grid slot plate 203 to move upward synchronously, which indirectly drives the folding curtain 306 to retract. Conversely, the folding curtain 306 to unfold. In the process of continuous upward movement of the telescopic electric cylinder 201, the PCB board with oxidized coating, the grid slot plate 203, and the magnetic plate plug 204 can be brought into contact with the magnetic plate frame 102. The contact between the magnetic plate frame 102 and the magnetic plate plug 204 can cause the movable end of the telescopic electric cylinder 201 to move down a certain length, driving the abutment plate 205 and the grid slot plate 203 to separate. In this way, the grid slot plate 203 and the PCB board inside the grid slot plate 203 can be automatically removed and replaced with the next batch of PCB boards.

[0061] The present invention also provides a method for using a device for improving the oxidation of a coating on a product after organic film stripping. The specific steps of the method are as follows:

[0062] S1. Place the PCBs one by one into the grid slot plate 203, then insert the magnetic plate plug 204 into the grid slot plate 203, and then clamp the grid slot plate 203 onto the clamping plate frame 202 to stabilize it. Then start the telescopic electric cylinder 201 to drive it to move downward, completely enter the chassis 1, and be immersed and oxidized by the coating solution prepared in advance and introduced into the chassis 1;

[0063] S2. When the magnetic plate plug 204 is moving downward, the abutment plate 205 installed thereon contacts an inclined slot block 301, driving it to move downward, so that it is forced to move downward to press the rotating plate 302, driving the rotating plate 302 and the rotating rod 303 to rotate synchronously, thereby driving the torsion spring 304 to deform. The passively deformed rotating plate 302 drives the other inclined slot block 301 to move upward, which relaxes the pull rope 305 installed on the other inclined slot block 301, so that the folding curtain 306 and the ear plate 307 provided on the rope body are elastically reset under the drive of the spring 1 309, thereby driving the folding curtain 306 to automatically unfold, sealing the top of the chassis 1, and preventing some other substances from entering the solution and affecting the immersion process of the PCB board and the solution;

[0064] S3. In combination with the above steps, when the rotating rod 303 rotates passively, it will drive the turntable 401 and the rotating handle 402 to rotate synchronously. The rotation of the rotating handle 402 will slide horizontally in the rectangular slot plate 403, generating a rotation-to-linear motion trajectory, which can drive the vertical rod 404 fixed on the top of the rectangular slot plate 403 to move up and down under the limit of the positioning block 405. The downward movement of the vertical rod 404 will stretch the bellows 406 to generate suction force inside it, thereby guiding the water in the water tank 407 into the bellows 406. When the vertical rod 404 moves upward, it will squeeze the bellows 406, so that the water drawn into it in advance can pass through the pipe 409 and the hollow ball valve 411, and finally be ejected with impact from the water plate 412. The ejected water can clean the PCB board that has been soaked in the plating in the grid slot plate 203, avoiding residual solution on the board body, which will cause oxide layer variation on the PCB board body if not cleaned in time.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for improving the oxidation of the coating of a product after organic film stripping, comprising a chassis (1), characterized in that: The chassis (1) has discharge plugs (101) for discharging the coating solution connected thereto at both ends of the chassis near the bottom, and a magnetic plate frame (102) is fixedly welded to the outer wall of one end of the chassis (1). The chassis (1) further comprises: a feed-in and feed-out structure (2), a symmetrical stretching barrier structure (3), and a piston cleaning structure (4); The feeding and discharging structure (2) includes a grid slot plate (203), and a magnetic plate plug (204) is tightly clamped on the top of the grid slot plate (203), which is used to separate and immerse multiple PCB boards at one time; A set of symmetrical stretch barrier structures (3) includes symmetrically installed folding curtains (306) for preventing other substances from entering the chassis (1) when the PCB board is undergoing solution immersion plating; A set of symmetrical piston cleaning structures (4) includes symmetrically installed water-discharging plates (412), and a hollow ball valve (411) is fixedly connected to one end plate body of each of the two water-discharging plates (412), so as to enable the two water-discharging plates (412) to reciprocate up and down to clean the plurality of PCB boards in the grid groove plate (203) from residual solution. The feeding and discharging structure (2) specifically further includes a telescopic electric cylinder (201) fixedly connected to the outer wall of the bottom end of the chassis (1), the movable end of the telescopic electric cylinder (201) and the bottom end plate of the chassis (1) are slidably connected, and the top of the movable end of the telescopic electric cylinder (201) is fixedly connected to a clamping plate frame (202), and the clamping plate frame (202) and the bottom end outer wall of the grid slot plate (203) can be intermittently fitted and clamped, and the outer walls on both sides of the top end of the magnetic plate plug (204) are fixedly connected to abutment plates (205), and the top end of the magnetic plate plug (204) can be intermittently magnetically connected to the magnetic plate frame (102); The symmetrical stretching barrier structure (3) further comprises two inclined slot blocks (301), a rotating plate (302) is hingedly connected between the two inclined slot blocks (301), a rotating rod (303) is fixedly connected to the center of the rotating plate (302), and the rod body of the rotating rod (303) is movably connected to the box body of the chassis (1); A torsion spring (304) is fixedly connected between the rotating plate (302) and the inner wall of the chassis (1); the top outer wall of one of the inclined slot blocks (301) can be fitted and connected to the bottom outer wall of the abutment plate (205); a pull rope (305) is fixedly connected to the top outer wall of the other inclined slot block (301); and the rope body of the pull rope (305) is in sliding connection with the inner wall of the cavity of the chassis (1); The rope body of the pull rope (305) is also fixedly connected to the curtain body of the folding curtain (306), one end of the folding curtain (306) is fixedly connected to the inner wall of one end of the chassis (1), and the bottom of the other end of the folding curtain (306) is fixedly connected to an ear plate (307), and a sliding rod (308) is slidably connected to the ear plate (307). Both ends of the sliding rod (308) are fixedly connected to the inner wall of the chassis (1), and a spring (309) is fixedly connected between the inner wall of the chassis (1) and the plate body of the ear plate (307).

2. The device for improving the oxidation of the coating of the product after organic film stripping according to claim 1 is characterized in that: The symmetrical piston cleaning structures (4) each further include a turntable (401) fixedly connected to the rod body of the turntable (303), a turn handle (402) fixedly connected to the other end side wall of the turntable (401), a rectangular slot plate (403) slidably connected to the turn handle (402), and a vertical rod (404) fixedly connected to the top outer wall of the rectangular slot plate (403).

3. The device for improving the oxidation of the coating of the product after organic film stripping according to claim 2 is characterized in that: A positioning block (405) is fitted and slidably connected to the rod body of the vertical rod (404), and the positioning block (405) is specifically fixedly connected to the outer wall of the chassis (1). A bellows (406) is fixedly connected to the top rod body of the vertical rod (404), and a suction pipe is fixedly connected to the top of the bellows (406), and a water tank (407) is fixedly connected to the top of the suction pipe. A connecting plate (408) is fixedly connected to the outer wall of the water tank (407), and the other end plate body of the connecting plate (408) is fixedly connected to the plate body of the magnetic plate frame (102).

4. The device for improving the oxidation of the coating of the product after organic film stripping according to claim 3 is characterized in that: A delivery pipe (409) is fixedly connected to the outer wall of one end of the bellows (406) near the top, and a one-way valve (410) is fixedly connected to the pipe body of the delivery pipe (409) and the pumping pipe. The hollow ball valve (411) is movably connected to the inner wall of the other end of the pipe body of the delivery pipe (409). An oblique plate (413) is fixedly connected to the inner wall of the top end of the hollow ball valve (411), and an elastic telescopic member is hinged between the outer wall of the top end of the oblique plate (413) and the inner wall of the top end of the delivery pipe (409).

5. The device for improving the oxidation of the coating of the product after organic film stripping according to claim 4 is characterized in that: A rotating shaft (414) is movably sleeved on the pipe body of the delivery pipe (409), and a plurality of water wheel plates (415) are fixedly connected to the outer wall of the rotating shaft (414) in a surrounding manner. A first latch block (416) is fixedly connected to the outer walls of both sides of the rotating shaft (414), and a second latch block (417) is fit-fittingly slidably connected to the outer walls of the two first latch blocks (416). A second spring (418) is fixedly connected to the outer walls of one end of the two second latch blocks (417). A latch groove (419) that can be fixedly connected to the two second springs (418) is provided on the outer walls of both sides of the delivery pipe (409), and the inner wall of the latch groove (419) is fit-fittingly slidably connected to the second latch block (417).

6. A method for improving the oxidation of the coating of products after organic film stripping, characterized in that: The device for improving the oxidation of the coating of the product after organic film stripping according to claim 5 is used, and the specific steps are as follows: S1, by placing the PCBs one by one into the grid slot plate (203), then clamping the magnetic plate plug (204) into the grid slot plate (203), and then clamping the grid slot plate (203) onto the clamping plate frame (202), stabilizing and limiting it, and then starting the telescopic electric cylinder (201) to drive it to move downward, completely enter the chassis (1), and be immersed and oxidized by the plating solution prepared in advance and introduced into the chassis (1); S2. When the magnetic plate plug (204) is in the process of moving downward, the abutment plate (205) installed thereon contacts an inclined slot block (301), driving it to move downward, so that it is forced to move downward to press the rotating plate (302), driving the rotating plate (302) and the rotating rod (303) to rotate synchronously, thereby driving the torsion spring (304) to produce deformation, and the rotating plate (302) after passive deformation drives another inclined slot block (301) to move upward, thereby loosening the pull rope (305) installed on the other inclined slot block (301), so that the folding curtain (306) and the ear plate (307) provided on the rope body will produce elastic reset under the drive of the spring 1 (309), thereby driving the folding curtain (306) to automatically unfold, sealing the top of the chassis (1), and preventing some other substances from entering the solution and affecting the immersion process of the PCB board and the solution; S3. In combination with the above steps, when the rotating rod (303) rotates passively, it will drive the turntable (401) and the rotating handle (402) to rotate synchronously. The rotation of the rotating handle (402) will slide horizontally in the rectangular slot plate (403), generating a rotation-to-linear motion trajectory, which can drive the vertical rod (404) fixed on the top of the rectangular slot plate (403) to move up and down under the limit of the positioning block (405). The downward movement of the vertical rod (404) will stretch the bellows (406) to generate suction force inside it. Thus, the water in the water tank (407) is introduced into the bellows (406). When the vertical rod (404) moves upward, it squeezes the bellows (406), so that the water drawn into the bellows in advance can pass through the delivery pipe (409) and the hollow ball valve (411), and finally be ejected from the water ejector plate (412) with impact force. The ejected water can clean the PCB board that has been soaked in the plating layer in the grid groove plate (203), thereby avoiding residual solution on the board body, which may cause the oxide layer of the PCB board to be deformed if it is not cleaned in time.

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