Automatic cleaning and drying device and method for electronic products

Abstract

The invention relates to the technical field of electronic product cleaning, in particular to an electronic product automatic cleaning and drying device and a method thereof.The electronic product automatic cleaning and drying device comprises an operation box, supporting plates are fixedly installed in the middles of the two sides of an inner cavity of the operation box, L-shaped frames fixedly connected with the operation box are arranged on one sides of the supporting plates, and inclined plates are rotationally installed on the sides, close to each other, of the two L-shaped frames; a hydraulic rod is started to push a connecting rod downwards, the connecting rod moves downwards to drive the inclined plate to press downwards and then rotate so that the center column can be lifted upwards, the inclined plate is overturned and reset so that the center column can be supported on the upper portion of the supporting plate, overturning of the side frame is achieved, and the circuit board is overturned after one face of the circuit board is cleaned; compared with an existing device, the circuit board cleaning device has the advantages that the two faces of the circuit board can be cleaned in sequence, vibration is generated when the side frame is turned over and the center column falls onto the supporting plate, then water drops on the cleaned circuit board are vibrated and knocked down, and follow-up rapid drying is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of electronic product cleaning, and in particular to an automatic cleaning and drying device for electronic products and a method thereof. Background Art

[0002] "3C products" is a general term for computer, communication and consumer electronic products, also known as "information appliances". For example, computers, tablet computers, mobile phones or digital audio players. Circuit boards are important components in 3C electronics, among which PCB photoresist is an indispensable material in the electronic manufacturing process and is widely used in the production of circuit boards. There are many methods for cleaning photoresist, among which the chemical dissolution method is to dissolve and clean the photoresist on the surface of the circuit board with propanol.

[0003] The prior art discloses a Chinese patent with application number CN202410457965.7, a circuit board cleaning device, and discloses that the surface of the circuit board is cleaned by a vibrating cleaning liquid, thereby avoiding excessive water flow directly flushing the surface of the circuit board, causing damage to the electronic components on the surface of the circuit board. Since the support frame lifts the clamping plate, the bottom of the clamping plate and the circuit board are prevented from directly contacting the bottom of the water tank, thereby avoiding the vibration of the bottom of the water tank causing the circuit board to collide with the bottom of the water tank.

[0004] Although the above device can clean the circuit board, when cleaning both sides of the circuit board, the circuit board needs to be disassembled and turned over before the other side of the circuit board can be cleaned. The circuit board cannot be quickly turned over for cleaning after cleaning, and the wiping force cannot be adjusted when wiping the circuit board. Summary of the invention

[0005] The object of the present invention is to provide an automatic cleaning and drying device for electronic products and a method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An automatic cleaning and drying device for electronic products, comprising an operation box. In the middle of both sides of the inner cavity of the operation box, there are fixedly installed supporting plates. On one side of the supporting plate, there is an L-shaped frame fixedly connected to the operation box. On the side where the two L-shaped frames are close to each other, there is a sloping plate rotatably installed. On one side of the sloping plate, there is a central column rotatably installed. One end of the central column is placed on the upper part of the supporting plate. On the side where the two sloping plates are close to each other, there is an L-shaped plate fixedly connected to the operation box. Below the L-shaped plate, there is a connecting rod connected to the two sloping plates. On the lower end face of the L-shaped plate, there is a hydraulic rod fixedly installed. The telescopic end of the hydraulic rod is connected to the middle of the connecting rod. On the side where the two central columns on both sides are close to each other, there are side frames fixedly installed. On one side of the supporting plate, there is a swinging plate rotatably installed. The side of the swinging plate far from the supporting plate is rotatably connected to the side frame. Between the two side frames, there are multiple sets of clamping units for fixing the circuit board during cleaning and drying. On the side of the operation box far from the L-shaped plate, there is a flushing unit. Above the clamping unit, there is a wiping unit. On the side of the operation box far from the flushing unit, there is a drying unit.

[0008] Further, on the lower end face of the side frame, there are multiple sets of guiding plates. The multiple sets of guiding plates correspond to the multiple sets of clamping units one by one. The lengths of the multiple sets of guiding plates increase sequentially from front to back. In the middle of the side frame, there is a threaded rod rotatably installed through a motor. On the two threaded rods, there are multiple sets of convex plates rotatably installed in a threaded manner. On the side where each set of convex plates is close to each other, there is a set of left-right symmetric folding plates rotatably installed. The folding angles of each set of folding plates increase sequentially from front to back. At the folding angle in the middle of the folding plate, there is a fixing column fixedly connected to the side frame rotatably installed. Below each set of folding plates, there is a U-shaped plate rotatably installed together. On both sides of the U-shaped plate, there are sliding rods fixedly installed. The two sliding rods of each set are respectively slidably located in the corresponding set of guiding plates.

[0009] Further, the clamping unit includes a first folding angle plate. There are multiple sets of first folding angle plates, and each set of first folding angle plates has two symmetrically arranged ones. In the middle of each set of first folding angle plates, there is an adjustment groove opened on the U-shaped plate. In the middle of each adjustment groove, there is an adjustment rod rotatably installed. The adjustment rod in the middle is rotatably connected to the U-shaped plate through a motor. On the middle of the adjustment rod, there is a moving part rotatably installed in a threaded manner. On both sides of the moving part, there are pull plates hinged. The two pull plates on both sides respectively penetrate through the corresponding adjustment grooves and are hinged to the first folding angle plate. On the side of the first folding angle plate far from the adjustment rod, there is a rear plate fixedly installed.

[0010] Further, at the front end of the adjustment rod, there is a sprocket fixedly installed. Between the sprockets, there is a chain installed together. On both sides of the upper end face of the U-shaped plate, there are telescopic plates fixedly installed. The telescopic ends of the two telescopic plates on both sides are fixedly connected to a moving plate together. On the lower end face of the moving plate, there are multiple sets of electric push rods fixedly installed. The telescopic ends of the electric push rods are fixedly installed with a double-direction traction plate. On both sides of the double-direction traction plate, there are second folding angle plates fixedly installed through round shafts. The round shafts are slidably located in the corresponding rear plates.

[0011] Furthermore, the flushing unit includes a bracket, a storage box is placed on the upper end surface of the bracket, the storage box is used to store propanol for flushing the photoresist on the circuit board, a connecting pipe is provided on one side of the storage box, a cross bar is rotatably installed in the middle of the front side of the working box, a rotating plate is fixedly installed in the middle of the cross bar, and the connecting pipe is connected to the rotating plate away from the side of the storage box.

[0012] Furthermore, a plurality of nozzles are provided on the side of the rotating plate away from the connecting pipe, a steering wheel is fixedly installed on one side of the cross bar, a driving plate connected to the working box through a motor is provided on the side of the steering wheel away from the rotating plate, a swing plate rotatably connected to the working box is provided on the outer sleeve of the driving plate, a swing frame is fixedly installed on one side of the upper part of the swing plate, and the swing frame is meshed with the steering wheel through teeth arranged at the lower part.

[0013] Furthermore, the wiping unit includes a sliding frame, which is symmetrically arranged in two and slidably connected to the two sides of the work box through an electric slider, a telescopic rod is fixedly installed on the lower end surface of the sliding frame, and the telescopic rods on both sides are commonly fixedly installed on a fixed frame, a central axis is installed laterally in the middle of the fixed frame, an extrusion wheel is fixedly installed in the middle of the central axis, the central axis passes through one side of the fixed frame and a first bevel gear is fixedly installed, and a front side frame is slidably installed on the side of the fixed frame close to the central axis.

[0014] Furthermore, a contact wheel is rotatably installed on the side of the front side frame close to the central axis, and multiple groups of ear plates are provided on the side of the front side frame away from the central axis. Synchronous rods are rotatably installed between the multiple groups of ear plates, and a second bevel gear is fixedly installed on one end of the synchronization rod. A sponge roller fixed to the synchronization rod is rotatably installed between each group of ear plates, and fixed blocks are fixedly installed on one side of the front side frame and the fixed frame, and a rotating rod is rotatably installed between the two fixed blocks.

[0015] Furthermore, a motor connected to a fixed block is provided on one side of the rotating rod, an output end of the motor is connected to the rotating rod, a movable ring is installed on the rotating rod away from the motor side for sliding back and forth, a third bevel gear meshing with the second bevel gear is fixedly installed on the outside of the movable ring, a fourth bevel gear meshing with the first bevel gear is fixedly installed in the middle of the rotating rod, and the drying unit includes two placement racks fixedly connected to the working box, and a dryer is placed on the upper part of the two placement racks.

[0016] Another object of the present invention is to provide an automatic cleaning and drying method for electronic products, comprising the following steps:

[0017] S1: Fixing the circuit board before cleaning:

[0018] When cleaning the photoresist on the surface of the circuit board in the 3C electronic product, firstly, the circuit board to be cleaned is placed on each group of the first angled plates at a time, then the motor is turned on to rotate the adjusting rod, and the adjusting rod drives the moving part to move when rotating, and the moving part adjusts the first angled plates on both sides of the circuit board through the pulling plates on both sides when moving, so as to clamp the two corners at the bottom of the circuit board, and then the electric push rod is controlled to push forward, and the two-way traction plate drives the second angled plate to clamp the two corners at the top of the circuit board, and the multiple groups of clamping units are slid downward when the folding plate rotates, and each group of clamping units is staggered and arranged;

[0019] S2: Propanol photoresist rinse:

[0020] The nozzle is turned on to wash the circuit board facing the nozzle side, and the motor is turned on to drive the driving plate to rotate. When the driving plate rotates, it drives the swing plate to swing, and when the swing plate swings, it drives the swing frame to swing. When the swing frame swings, the turning plate angle is adjusted by the steering wheel, so as to adjust the spraying intensity of the nozzle when spraying propanol. At the same time, when the turning plate rotates, it is also convenient to adjust the spraying range of the nozzle. When the other side of the circuit board is to be cleaned, the hydraulic rod is turned on to move downward. When the hydraulic rod moves downward, the inclined plates on both sides are pressed downward by the connecting rod. When the inclined plates are pressed downward, the center column is lifted upward, and the side frame is flipped. At this time, the hydraulic rod is retracted. At this time, the unwashed side of the circuit board faces the washing unit. Repeating the above operation can realize double-sided cleaning of the circuit board;

[0021] S3: Circuit board drying:

[0022] When the rinsed circuit board is dried, the dryer can be turned on to dry the surface of the cleaned circuit board.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention opens the hydraulic rod and pushes the connecting rod downward. When the connecting rod moves downward, it drives the inclined plates on both sides to press down. When the inclined plates are pressed down, they rotate to lift the center column upward, and the center column simultaneously drives the side frames to move up. When the side frames move up, the swing plate in front of the pallet drives the side frames to flip over, and then the hydraulic rod retracts, at this time the inclined plate flips and resets, so that the center column is supported on the upper part of the pallet, thereby realizing the flipping of the side frames, and the circuit boards fixed on the side frames are turned over by controlling the flipping of the side frames, so that one side of the circuit board is flipped after cleaning, and the other side is flipped for cleaning. Compared with the existing device, the present application can clean both sides of the circuit board in turn, and quickly flip the circuit board after cleaning one side, without the need for cumbersome disassembly and assembly of the circuit board for cleaning, and when the side frame flips over, the center column vibrates when it falls onto the pallet, thereby vibrating and knocking off water droplets on the cleaned circuit board for subsequent rapid drying.

[0025] 2. The present invention starts the motor to drive the threaded rod to rotate, and when the threaded rod rotates, it simultaneously drives multiple convex plates to move forward, and when the convex plate moves forward, the folding plate rotates, and when the folding plate rotates, it drives the shape plate to move downward, and when the shape plate moves downward, it slides along the guide plate through the sliding rod to stagger the multiple clamping units, so that when the flushing unit flushes multiple groups of clamping units, the previous group of clamping units can effectively avoid the flushing of the circuit boards on the next group of clamping units. Compared with the existing device, the present invention can flush batches of circuit boards and avoid the problem of uneven flushing of the circuit boards.

[0026] 3. The present invention drives the middle adjusting rod to rotate by turning on the motor, and the adjusting rod drives multiple adjusting rods to rotate through the sprocket and the chain. The rotation of the adjusting rod drives the moving part to move backward at the same time. When the moving part moves forward and backward, it drives the two first angle plates of multiple groups to move closer to or away from each other through the pulling plate, so as to clamp circuit boards of different lengths. When the two first angle plates of each group are moved and adjusted, the second angle plates above are synchronously driven to be adjusted synchronously through the setting of the rear plate, so that the second angle plates and the first angle plates are always kept in the same horizontal line, and the two-way traction plate is lifted and lowered by turning on the electric push rod to extend and retract. When the two-way traction plate moves, it drives the second angle plate to be lifted and lowered, so as to clamp circuit boards of different heights.

[0027] 4. The present invention drives the driving plate to rotate by turning on the motor, and when the driving plate rotates, it drives the swing plate to swing left and right. When the swing plate swings left and right, it drives the swing frame to swing synchronously. When the swing frame swings, the turning plate is driven to rotate by the steering wheel. When the turning plate rotates, it drives the nozzle on the turning plate to rotate, thereby realizing the washing of batches of circuit boards at different angles and different impulses.

[0028] 5. The present invention drives the sliding frame to move to the top of a group of circuit boards that need to be wiped by opening the electric slider, and then opens the telescopic rod to move the fixed frame downward until the sponge roller is located at the front side of the circuit board. Then the motor is turned on to drive the rotating rod to rotate. When the rotating rod rotates, the fourth bevel gear and the first bevel gear are meshed to drive the central shaft to rotate. When the central shaft rotates, the squeezing wheel intermittently squeezes the contact wheel, so that the sponge roller intermittently presses the circuit board when the circuit board is rotated for cleaning, so that the circuit board can be effectively wiped and cleaned. When the rotating rod rotates, the third bevel gear is meshed with the second bevel gear, so that the synchronous rod drives the sponge roller to rotate to clean the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall rear side structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the inner cavity structure of the working box of the present invention;

[0033] Figure 4 It is a schematic diagram of the front and rear structures of the flushing unit of the present invention;

[0034] Figure 5 It is a schematic diagram of the rear structure of the flushing unit of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure between the clamping unit and the L-shaped plate of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the clamping unit of the present invention;

[0037] Figure 8 It is a schematic diagram of the front structure between the molded plate and the movable plate of the present invention;

[0038] Fig. 9 It is a schematic diagram of the rear side structure between the molded plate and the movable plate of the present invention;

[0039] Fig.10 It is a schematic diagram of the structure of the wiping unit of the present invention;

[0040] Fig.11 The present invention Figure 8 Schematic diagram of the enlarged structure of part A.

[0041] The reference numerals in the figures are as follows:

[0042] 1. Operating box; 10. Pallet; 11. L-shaped frame; 12. Inclined plate; 13. Central column; 14. L-shaped plate; 15. Connecting rod; 16. Hydraulic rod; 17. Side frame; 171. Guide plate; 172. Threaded rod; 173. Convex plate; 174. Folding plate; 175. Fixed column; 176. Slide bar; 2. Clamping unit; 21. C-shaped plate; 22. First folding angle plate; 221. Rear plate; 23. Adjustment groove; 24. Adjustment rod; 241. Moving part; 242. Pulling plate; 243. Sprocket; 244. Chain; 25. Telescopic plate; 26. Moving plate; 261. Electric push rod; 262. Bidirectional traction plate; 27. Second folding angle plate; 3. Flushing unit; 31. Bracket; 311. Storage box; 312. Connecting pipe; 32. Cross bar; 33. Rotating plate; 331. Sprayer; 34. Direction adjusting wheel; 35. Driving plate; 36. Swing plate; 37. Swing frame; 4. Wiping unit; 41. Sliding frame; 42. Telescopic rod; 43. Fixed frame; 431. Central shaft; 432. Extrusion wheel; 433. First bevel gear; 44. Front side frame; 441. Contact wheel; 45. Ear plate; 46. Synchronous rod; 461. Second bevel gear; 462. Sponge roller; 47. Fixed block; 471. Motor; 472. Rotating rod; 473. Moving ring; 474. Third bevel gear; 475. Fourth bevel gear; 5. Drying unit; 51. Placing rack; 52. Dryer. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] An automatic cleaning and drying device for electronic products. The cleaning and drying device removes the conductive materials on the circuit board by chemical methods. Specifically, it cleans the component circuit boards in 3C electronic products with propanol, and then removes the photoresist on the surface of the circuit board. It belongs to a kind of special equipment for integrated circuit board manufacturing.

[0045] As Figure 1-Figure 11As shown in the figure, it includes an operation box 1. In the middle of both sides of the inner cavity of the operation box 1, there are fixed trays 10. On one side of the tray 10, there is an L-shaped frame 11 fixedly connected to the operation box 1. On the side where the two L-shaped frames 11 are close to each other, there is a rotating inclined plate 12. On one side of the inclined plate 12, there is a central column 13 rotatably installed. One end of the central column 13 is placed on the upper part of the tray 10. On the side where the two inclined plates 12 are close to each other, there is an L-shaped plate 14 fixedly connected to the operation box 1. Below the L-shaped plate 14, there is a connecting rod 15 connected to the two inclined plates 12. On the lower end surface of the L-shaped plate 14, there is a hydraulic rod 16 fixedly installed. The telescopic end of the hydraulic rod 16 is connected to the middle of the connecting rod 15. On the side where the two central columns 13 on both sides are close to each other, there are side frames 17 fixedly installed. On one side of the tray 10, there is a swing plate rotatably installed. The side of the swing plate far from the tray 10 is rotatably connected to the side frame 17. Between the two side frames 17, there are multiple sets of clamping units 2 for fixing the circuit board during cleaning and drying. On the side of the operation box 1 far from the L-shaped plate 14, there is a flushing unit 3. Above the clamping unit 2, there is a wiping unit 4. On the side of the operation box 1 far from the flushing unit 3, there is a drying unit 5.

[0046] By turning on the hydraulic rod 16 to push the connecting rod 15 downward, when the connecting rod 15 moves downward, it drives the two inclined plates 12 on both sides to press down. When the inclined plates 12 press down, they rotate, thereby lifting the central column 13 upward. The central column 13 synchronously drives the side frame 17 to move upward. When the side frame 17 moves upward, the swing plate in front of the tray 10 drives the side frame 17 to flip. Subsequently, the hydraulic rod 16 retracts. At this time, the inclined plates 12 flip back to their original positions, and the central column 13 is placed on the upper part of the tray 10, thereby realizing the flipping of the side frame 17. By controlling the flipping of the side frame 17, the circuit board fixed on the side frame 17 can be turned over, so that after one side of the circuit board is cleaned, it is flipped over to clean the other side. Compared with the existing device, this application can clean both sides of the circuit board in sequence, and quickly flip the circuit board after one side is cleaned, without the need for cumbersome disassembly and cleaning of the circuit board. And when the side frame 17 flips and the central column 13 falls onto the tray 10, vibrations are generated, thereby vibrating and knocking off the water droplets on the cleaned circuit board for subsequent rapid drying.

[0047] On the lower end surface of the side frame 17, there are multiple sets of guide plates 171. The multiple sets of guide plates 171 correspond to the multiple sets of clamping units 2 one by one. The lengths of the multiple sets of guide plates 171 increase sequentially from front to back. In the middle of the side frame 17, there is a threaded rod 172 rotatably installed through a motor. On the two threaded rods 172, there are multiple sets of convex plates 173 threadedly installed. On the side where each set of convex plates 173 is close to each other, there is a set of left-right symmetric folding plates 174 rotatably installed. The folding angles of each set of folding plates 174 increase sequentially from front to back. At the folding angle in the middle of the folding plate 174, there is a fixed column 175 fixedly connected to the side frame 17 rotatably installed. At the lower part of each set of folding plates 174, there is a U-shaped plate 21 rotatably installed together. On both sides of the U-shaped plate 21, there are sliding rods 176 fixedly installed. The two sliding rods 176 of each group are respectively slidably located in the corresponding set of guide plates 171.

[0048] The clamping unit 2 includes a first folding plate 22. There are multiple groups of the first folding plates 22, and each group has two symmetrically arranged first folding plates 22. An adjustment groove 23 is provided in the middle of each group of first folding plates 22 and is opened on the U-shaped plate 21. An adjustment rod 24 is rotatably installed in the middle of each group of adjustment grooves 23. The middle adjustment rod 24 is rotatably connected to the U-shaped plate 21 through a motor. A moving part 241 is threadedly and rotatably installed in the middle of the adjustment rod 24. Pulling plates 242 are hinged on both sides of the moving part 241. The pulling plates 242 on both sides respectively penetrate through the corresponding adjustment grooves 23 and are hinged to the first folding plate 22. A rear plate 221 is fixedly installed on the side of the first folding plate 22 away from the adjustment rod 24.

[0049] When the multiple groups of U-shaped plates 21 are displaced and arranged, by starting the motor to drive the threaded rod 172 to rotate, when the threaded rod 172 rotates, it synchronously drives a plurality of convex plates 173 to move forward. When the convex plates 173 move forward, the folding plate 174 rotates. When the folding plate 174 rotates, it drives the U-shaped plate 21 to move downward. When the U-shaped plate 21 moves downward, it slides along the guide plate 171 through the slide rod 176, so that the multiple clamping units 2 are displaced and arranged. Thus, when the flushing unit 3 flushes the multiple clamping units 2, it effectively avoids the front clamping unit 2 from blocking the flushing of the circuit board on the rear clamping unit 2. Compared with the existing device, the present invention can flush a batch of circuit boards and at the same time avoid the problem of uneven flushing of the circuit boards.

[0050] A sprocket 243 is fixedly installed at the front end of the adjustment rod 24. A chain 244 is commonly installed between the sprockets 243. Telescopic plates 25 are fixedly installed on both sides of the upper end surface of the U-shaped plate 21. The telescopic ends of the telescopic plates 25 on both sides are commonly fixedly installed with a moving plate 26. A plurality of electric push rods 261 are fixedly installed on the lower end surface of the moving plate 26. The telescopic end of the electric push rod 261 is fixedly installed with a double-sided traction plate 262. Second folding plates 27 are fixedly installed on both sides of the double-sided traction plate 262 through round shafts, and the round shafts slide in the corresponding rear plates 221.

[0051] The motor is turned on to drive the adjusting rod 24 in the middle to rotate, and the adjusting rod 24 drives multiple adjusting rods 24 to rotate through the sprocket 243 and the chain 244. The rotation of the adjusting rod 24 drives the moving member 241 to move backward at the same time. When the moving member 241 moves forward and backward, it drives multiple groups of two first angle plates 22 to move closer to or away from each other through the pulling plate 242, so as to clamp circuit boards of different lengths. When the two first angle plates 22 of each group are moved and adjusted, the second angle plate 27 above is synchronously adjusted through the setting of the rear plate 221, so that the second angle plate 27 and the first angle plate 22 always keep the same horizontal line, and the two-way traction plate 262 is lifted and lowered by turning on the electric push rod 261 to extend and retract. When the two-way traction plate 262 moves, it drives the second angle plate 27 to lift and lower, so as to clamp circuit boards of different heights.

[0052] The flushing unit 3 includes a bracket 31, on the upper end surface of which a storage box 311 is placed. The storage box 311 is used to store propanol for flushing the photoresist on the circuit board. A connecting pipe 312 is provided on one side of the storage box 311. A cross bar 32 is rotatably installed in the middle of the front side of the work box 1, and a rotating plate 33 is fixedly installed in the middle of the cross bar 32. The connecting pipe 312 is connected to the rotating plate 33 away from the side of the storage box 311.

[0053] A plurality of nozzles 331 are provided on the side of the rotating plate 33 away from the connecting pipe 312, a steering wheel 34 is fixedly installed on one side of the cross bar 32, a driving plate 35 connected to the working box 1 through a motor is provided on the side of the steering wheel 34 away from the rotating plate 33, a swing plate 36 rotatably connected to the working box 1 is sleeved on the outside of the driving plate 35, a swing frame 37 is fixedly installed on one side of the upper part of the swing plate 36, and the swing frame 37 is meshed with the steering wheel 34 through teeth arranged at the lower part.

[0054] The motor is turned on to drive the driving plate 35 to rotate, and when the driving plate 35 rotates, it drives the swing plate 36 to swing left and right. When the swing plate 36 swings left and right, it drives the swing frame 37 to swing synchronously. When the swing frame 37 swings, the turning plate 33 is driven to rotate through the steering wheel 34. When the turning plate 33 rotates, it drives the nozzle 331 on the turning plate 33 to rotate, thereby realizing the washing of batches of circuit boards at different angles and different impulses.

[0055] The wiping unit 4 includes a sliding frame 41, which is symmetrically arranged in two and slidably connected to the two sides of the work box 1 through an electric slider. A telescopic rod 42 is fixedly installed on the lower end surface of the sliding frame 41, and a fixed frame 43 is fixedly installed on the telescopic rods 42 on both sides. A central axis 431 is installed in the middle of the fixed frame 43 for horizontal rotation, and an extrusion wheel 432 is fixedly installed in the middle of the central axis 431. The central axis 431 passes through one side of the fixed frame 43 and a first bevel gear 433 is fixedly installed thereon. A front side frame 44 is slidably installed on the fixed frame 43 close to the side of the central axis 431.

[0056] A contact wheel 441 is rotatably installed on one side of the front side frame 44 close to the central axis 431, and a plurality of groups of ear plates 45 are provided on the side of the front side frame 44 away from the central axis 431. A synchronization rod 46 is rotatably installed between the plurality of groups of ear plates 45, and a second bevel gear 461 is fixedly installed at one end of the synchronization rod 46. A sponge roller 462 fixed to the synchronization rod 46 is rotatably installed between each group of ear plates 45. Fixed blocks 47 are fixedly installed on one side of the front side frame 44 and the fixed frame 43, and a rotating rod 472 is rotatably installed between the two fixed blocks 47.

[0057] A motor 471 connected to the fixed block 47 is provided on one side of the rotating rod 472, and the output end of the motor 471 is connected to the rotating rod 472. A moving ring 473 is installed on the rotating rod 472 away from the side of the motor 471 for sliding back and forth. A third bevel gear 474 meshing with the second bevel gear 461 is fixedly installed on the outside of the moving ring 473, and a fourth bevel gear 475 meshing with the first bevel gear 433 is fixedly installed in the middle of the rotating rod 472. The drying unit 5 includes two placement racks 51 fixedly connected to the work box 1, and a dryer 52 is placed on the upper part of the two placement racks 51.

[0058] The electric slider is opened to drive the sliding frame 41 to move above a group of circuit boards that need to be wiped, and then the telescopic rod 42 is opened to move the fixed frame 43 downward until the sponge roller 462 is located at the front side of the circuit board. Then the motor 471 is turned on to drive the rotating rod 472 to rotate. When the rotating rod 472 rotates, the fourth bevel gear 475 and the first bevel gear 433 are engaged, thereby driving the central shaft 431 to rotate. When the central shaft 431 rotates, the squeezing wheel 432 intermittently squeezes the contact wheel 441, so that the sponge roller 462 intermittently presses the circuit board when the circuit board is rotated for cleaning, so that the circuit board can be effectively wiped and cleaned. When the rotating rod 472 rotates, the third bevel gear 474 is engaged with the second bevel gear 461, so that the synchronous rod 46 drives the sponge roller 462 to rotate to clean the circuit board.

[0059] Another object of the present invention is to provide an automatic cleaning and drying method for electronic products, comprising the following steps:

[0060] S1: Fixing the circuit board before cleaning:

[0061] When cleaning the photoresist on the surface of the circuit board in the 3C electronic product, first place the circuit board to be cleaned on each group of the first angled plates 22 at a time, then start the motor to rotate the adjusting rod 24, and when the adjusting rod 24 rotates, the moving member 241 is driven to move, and when the moving member 241 moves, the first angled plates 22 on both sides of the circuit board are adjusted through the pull plates 242 on both sides, so as to clamp the two corners at the bottom of the circuit board, and then control the electric push rod 261 to push forward, and at this time, the two-way traction plate 262 drives the second angled plate 27 to clamp the two corners at the top of the circuit board, and when the folding plate 174 rotates, multiple groups of clamping units 2 are slid downward, and at this time, each group of clamping units 2 is staggered and arranged;

[0062] S2: Propanol photoresist rinse:

[0063] The spray head 331 is turned on to wash the circuit board facing the spray head 331. The motor is turned on to drive the driving plate 35 to rotate. When the driving plate 35 rotates, the swing plate 36 is driven to swing. When the swing plate 36 swings, the swing frame 37 is driven to swing. When the swing frame 37 swings, the angle of the rotating plate 33 is adjusted by the steering wheel 34, so that the spraying force of the spray head 331 when spraying propanol can be adjusted. At the same time, when the rotating plate 33 rotates, it is also convenient to adjust the spraying range of the spray head 331. When the other side of the circuit board is to be cleaned, the hydraulic rod 16 is turned on to move downward. When the hydraulic rod 16 moves downward, the inclined plates 12 on both sides are driven to press downward through the connecting rod 15. When the inclined plates 12 are pressed downward, the central column 13 is lifted upward. At this time, the side frame 17 is turned over. At this time, the hydraulic rod 16 retracts. At this time, the unwashed side of the circuit board faces the washing unit 3. Repeating the above operation can realize double-sided cleaning of the circuit board.

[0064] S3: Circuit board drying:

[0065] When the rinsed circuit board is dried, the dryer 52 is turned on to dry the surface of the cleaned circuit board.

[0066] When the present invention is in use, the hydraulic rod 16 is turned on to push the connecting rod 15 downward. When the connecting rod 15 moves downward, it drives the inclined plates 12 on both sides to press downward. When the inclined plates 12 are pressed downward, they rotate to lift the center column 13 upward. The center column 13 simultaneously drives the side frame 17 to move upward. When the side frame 17 moves upward, the swing plate in front of the support plate 10 drives the side frame 17 to flip. Then the hydraulic rod 16 retracts. At this time, the inclined plate 12 flips and resets, so that the center column 13 is placed on the upper part of the support plate 10, thereby realizing the flipping of the side frame 17. By controlling the side frame 17 The flipping of the side frame 17 turns over the circuit board fixed on the side frame 17, so that one side of the circuit board is flipped after cleaning, and the other side is flipped for cleaning. Compared with the existing device, the present application can clean both sides of the circuit board in sequence, and quickly flip the circuit board after cleaning one side, without the need for cumbersome disassembly and cleaning of the circuit board, and when the side frame 17 is flipped, the central column 13 falls on the support plate 10 to generate vibration, thereby vibrating and knocking off the water droplets on the cleaned circuit board for subsequent rapid drying;

[0067] The motor is turned on to drive the threaded rod 172 to rotate. When the threaded rod 172 rotates, it simultaneously drives the multiple convex plates 173 to move forward. When the convex plate 173 moves forward, the folding plate 174 rotates. When the folding plate 174 rotates, it drives the molded plate 21 to move downward. When the molded plate 21 moves downward, the sliding rod 176 slides along the guide plate 171 to stagger the multiple clamping units 2, so that when the flushing unit 3 flushes the multiple groups of clamping units 2, it effectively prevents the previous group of clamping units 2 from resisting the flushing of the circuit boards on the next group of clamping units 2;

[0068] When the motor is turned on, it drives the adjusting rod 24 in the middle to rotate. The adjusting rod 24 drives multiple adjusting rods 24 to rotate through the sprocket 243 and the chain 244. The adjusting rod 24 rotates and drives the moving member 241 to move backward at the same time. When the moving member 241 moves forward and backward, it drives multiple groups of two first angle plates 22 to move closer to or away from each other through the pulling plate 242, so as to clamp circuit boards of different lengths. When the two first angle plates 22 of each group are moved and adjusted, the second angle plate 27 above is synchronously adjusted through the setting of the rear plate 221, so that the second angle plate 27 and the first angle plate 22 always keep the same horizontal line. By turning on the electric push rod 261 to extend and retract, the two-way traction plate 262 is lifted and lowered. When the two-way traction plate 262 moves, it drives the second angle plate 27 to lift and lower, so as to clamp circuit boards of different heights.

[0069] The motor is turned on to drive the driving plate 35 to rotate. When the driving plate 35 rotates, it drives the swing plate 36 to swing left and right. When the swing plate 36 swings left and right, it drives the swing frame 37 to swing synchronously. When the swing frame 37 swings, it drives the rotating plate 33 to rotate through the steering wheel 34. When the rotating plate 33 rotates, it drives the nozzle 331 on the rotating plate 33 to rotate, thereby realizing the washing of batches of circuit boards at different angles and different impulses. The electric slider is turned on to drive the sliding frame 41 to move above a group of circuit boards that need to be wiped, and then the telescopic rod 42 is turned on to move the fixed frame 43 downward until the sponge roller 462 is located on the circuit board When the rotating rod 472 rotates, the third bevel gear 474 engages with the second bevel gear 461, thereby causing the synchronous rod 46 to drive the sponge roller 462 to rotate and clean the circuit board.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An automatic cleaning and drying device for electronic products, comprising an operation box (1), characterized in that: In the middle of both sides of the inner cavity of the operation box (1), a support plate (10) is fixedly installed. On one side of the support plate (10), there is an L-shaped frame (11) fixedly connected to the operation box (1). On the side where the two L-shaped frames (11) are close to each other, an inclined plate (12) is rotatably installed. On one side of the inclined plate (12), a central column (13) is rotatably installed. One end of the central column (13) is placed on the upper part of the support plate (10). On the side where the two inclined plates (12) are close to each other, there is an L-shaped plate (14) fixedly installed on the operation box (1). Below the L-shaped plate (14), there is a connecting rod (15) connected to the two inclined plates (12); On the lower end surface of the L-shaped plate (14), a hydraulic rod (16) is fixedly installed. The telescopic end of the hydraulic rod (16) is connected to the middle of the connecting rod (15). On the side where the two central columns (13) are close to each other, side frames (17) are fixedly installed. On one side of the support plate (10), a swing plate is rotatably installed. The side of the swing plate away from the support plate (10) is rotatably connected to the side frame (17). Between the two side frames (17), a plurality of clamping units (2) for fixing the circuit board during cleaning and drying are provided. On the side of the operation box (1) away from the L-shaped plate (14), a flushing unit (3) is provided. Above the clamping unit (2), a wiping unit (4) is provided. On the side of the operation box (1) away from the flushing unit (3), a drying unit (5) is provided.

2. The automatic cleaning and drying device for electronic products according to claim 1, characterized in that: On the lower end surface of the side frame (17), a plurality of guide plates (171) are provided. The plurality of guide plates (171) correspond to the plurality of clamping units (2) one by one. The lengths of the plurality of guide plates (171) increase sequentially from front to back. In the middle of the side frame (17), a threaded rod (172) is rotatably installed through a motor. On the two threaded rods (172), a plurality of convex plates (173) are rotatably installed by threads. On the side where each group of convex plates (173) are close to each other, a group of left-right symmetric folding plates (174) are rotatably installed. The folding angles of each group of folding plates (174) increase sequentially from front to back. At the folding angle in the middle of the folding plate (174), a fixing column (175) fixed to the side frame (17) is rotatably installed. Below each group of folding plates (174), a U-shaped plate (21) is rotatably installed together. On both sides of the U-shaped plate (21), sliding rods (176) are fixedly installed. The two sliding rods (176) of each group are respectively slidably located in the corresponding group of guide plates (171).

3. The automatic cleaning and drying device for electronic products according to claim 1, characterized in that: The clamping unit (2) includes a first folding angle plate (22). There are a plurality of groups of the first folding angle plates (22), and each group of the first folding angle plates (22) has two symmetrically arranged ones. In the middle of each group of the first folding angle plates (22), an adjustment groove (23) opened on the U-shaped plate (21) is provided. In the middle of each group of adjustment grooves (23), an adjustment rod (24) is rotatably installed. The middle adjustment rod (24) is rotatably connected to the U-shaped plate (21) through a motor. A moving part (241) is rotatably installed by threads in the middle of the adjustment rod (24). On both sides of the moving part (241), pull plates (242) are hinged. The two pull plates (242) on both sides respectively penetrate the corresponding adjustment grooves (23) and are hinged to the first folding angle plate (22). On the side of the first folding angle plate (22) away from the adjustment rod (24), a rear plate (221) is fixedly installed.

4. The automatic cleaning and drying device for electronic products according to claim 3, characterized in that: A sprocket wheel (243) is fixedly installed at the front end of the adjusting rod (24). A chain (244) is commonly installed between the sprocket wheels (243). Telescopic plates (25) are fixedly installed on both sides of the upper end surface of the U-shaped plate (21). The telescopic ends of the two telescopic plates (25) are commonly fixedly installed with a moving plate (26). A plurality of electric push rods (261) are fixedly installed on the lower end surface of the moving plate (26). The telescopic end of the electric push rod (261) is fixedly installed with a bidirectional traction plate (262). Second folding angle plates (27) are fixedly installed on both sides of the bidirectional traction plate (262) through round shafts, and the round shafts are slidably located in the corresponding rear plates (221).

5. The automatic cleaning and drying device for electronic products according to claim 1, characterized in that: The flushing unit (3) includes a bracket (31). A storage box (311) is placed on the upper end surface of the bracket (31). The storage box (311) is used for storing propanol for flushing the photoresist on the circuit board. A connecting pipe (312) is provided on one side of the storage box (311). A cross bar (32) is rotatably installed in the middle of the front side of the working box (1). A rotating plate (33) is fixedly installed in the middle of the cross bar (32). The side of the connecting pipe (312) away from the storage box (311) is communicated with the rotating plate (33).

6. The automatic cleaning and drying device for electronic products according to claim 5, characterized in that: A plurality of nozzles (331) are provided on the side of the rotating plate (33) away from the connecting pipe (312). A steering wheel (34) is fixedly installed on one side of the cross bar (32). A driving plate (35) connected to the working box (1) through a motor is provided on the side of the steering wheel (34) away from the rotating plate (33). A swing plate (36) rotatably connected to the working box (1) is sleeved outside the driving plate (35). A swing frame (37) is fixedly installed on one side of the upper part of the swing plate (36). The swing frame (37) is engaged with the steering wheel (34) through the teeth provided at the lower part.

7. The automatic cleaning and drying device for electronic products according to claim 1, characterized in that: The wiping unit (4) includes a sliding frame (41). The sliding frame (41) is symmetrically arranged in two and is slidably connected to both sides of the working box (1) through electric sliders. An expansion rod (42) is fixedly installed on the lower end surface of the sliding frame (41). The two expansion rods (42) are commonly fixedly installed with a fixing frame (43). A central shaft (431) is horizontally rotatably installed in the middle of the fixing frame (43). An extrusion wheel (432) is fixedly installed in the middle of the central shaft (431). A first bevel gear (433) is fixedly installed on one side of the central shaft (431) penetrating through the fixing frame (43). A front side frame (44) is slidably installed on one side of the fixing frame (43) close to the central shaft (431).

8. The automatic cleaning and drying device for electronic products according to claim 7, characterized in that: A contact wheel (441) is rotatably installed on one side of the front side frame (44) close to the central shaft (431). A plurality of ear plates (45) are provided on the side of the front side frame (44) away from the central shaft (431). A synchronous rod (46) is rotatably installed among the plurality of ear plates (45). A second bevel gear (461) is fixedly installed at one end of the synchronous rod (46). A sponge roller (462) fixed to the synchronous rod (46) is rotatably installed between each group of ear plates (45). Fixing blocks (47) are fixedly installed on one side of the front side frame (44) and the fixing frame (43). A rotating rod (472) is rotatably installed between the two fixing blocks (47).

9. The automatic cleaning and drying device for electronic products according to claim 8, characterized in that: A motor (471) connected to the fixed block (47) is provided on one side of the rotating rod (472); an output end of the motor (471) is connected to the rotating rod (472); a moving ring (473) is slidably mounted on the side of the rotating rod (472) away from the motor (471); a third bevel gear (474) meshing with the second bevel gear (461) is fixedly mounted on the outside of the moving ring (473); a fourth bevel gear (475) meshing with the first bevel gear (433) is fixedly mounted on the middle of the rotating rod (472); and the drying unit (5) comprises two placement racks (51) fixedly connected to the working box (1); a drying machine (52) is placed on the upper parts of the two placement racks (51).

10. An automatic cleaning and drying method for electronic products, using the automatic cleaning and drying device for electronic products as claimed in claim 9 to clean and dry the products, characterized in that: The cleaning and drying comprises the following steps: S1: Fixing the circuit board before cleaning: When cleaning the photoresist on the surface of the circuit board in the 3C electronic product, firstly, the circuit board to be cleaned is placed on each group of the first folded angle plates (22) at a time, then the motor is turned on to rotate the adjusting rod (24), and the adjusting rod (24) drives the moving member (241) to move when rotating, and the moving member (241) adjusts the first folded angle plates (22) on both sides of the circuit board through the pulling plates (242) on both sides when moving, thereby clamping the two corners at the bottom of the circuit board, and then the electric push rod (261) is controlled to push forward, and at this time the two-way pulling plate (262) drives the second folded angle plate (27) to clamp the two corners at the top of the circuit board, and when the folding plate (174) rotates, the multiple groups of clamping units (2) slide downward, and at this time, each group of clamping units (2) is staggered and arranged; S2: Propanol photoresist rinse: The spray head (331) is turned on to wash the circuit board facing the spray head (331), and the motor is turned on to drive the driving plate (35) to rotate. When the driving plate (35) rotates, it drives the swing plate (36) to swing. When the swing plate (36) swings, it drives the swing frame (37) to swing. When the swing frame (37) swings, the angle of the rotating plate (33) is adjusted by the steering wheel (34), so that the spraying force of the spray head (331) when spraying propanol can be adjusted. At the same time, when the rotating plate (33) rotates, it is also convenient to adjust the angle of the rotating plate (33). The spraying range of the nozzle (331) is adjusted. When the other side of the circuit board is to be cleaned, the hydraulic rod (16) is turned on and moved downward. When the hydraulic rod (16) moves downward, the inclined plates (12) on both sides are driven to press downward through the connecting rod (15). When the inclined plates (12) are pressed downward, the central column (13) is lifted upward. At this time, the side frame (17) is turned over. At this time, the hydraulic rod (16) is retracted. At this time, the uncleaned side of the circuit board faces the flushing unit (3). Repeating the above operation can realize double-sided cleaning of the circuit board. S3: Circuit board drying: When the rinsed circuit board is dried, the drying machine (52) is turned on to dry the surface of the cleaned circuit board.

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