An electronic product automatic cleaning and drying device and method thereof

Automatic circuit board cleaning is achieved by using hydraulic rods and inclined plates to flip the circuit boards. The clamping units are staggered by adjusting the threaded rods and adjusting rods. The spraying force is adjusted by the nozzles and swing plates. The squeezing of the sponge rollers achieves rapid double-sided cleaning and drying of the circuit boards, which solves the problem of low circuit board cleaning efficiency in the existing technology.

CN119387209BActive Publication Date: 2025-11-07DONGXUN INTELLIGENT EQUIPMENT (JIAXING) CO LTD
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Patent Information

Application Number
CN202411515920.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-11-07
Estimated Expiration
2044-10-29

AI Technical Summary

Technical Problem

Existing circuit board cleaning devices cannot achieve rapid cleaning of both sides of the circuit board, and the wiping force cannot be adjusted, resulting in low cleaning efficiency.

Method used

An automatic cleaning and drying device for electronic products was designed. The device automatically flips and cleans circuit boards by using hydraulic rods and inclined plates to achieve this. The device uses threaded rods and adjusting rods to achieve staggered arrangement of clamping units and fixation of circuit boards. The device uses nozzles and swing plates to adjust the spraying force and range, and uses sponge rollers to achieve wiping cleaning.

Benefits of technology

It enables rapid double-sided cleaning and drying of circuit boards, avoiding the cumbersome disassembly and assembly process, ensuring the uniformity and efficiency of cleaning, and improving the cleaning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of electronic product cleaning, in particular to an automatic electronic product cleaning and drying device and a method thereof, which comprises a work box, and a supporting plate is fixedly installed at the middle part of the two sides of the inner cavity of the work box; an L-shaped frame fixedly connected with the work box is arranged on one side of the supporting plate; an inclined plate is rotatably installed on the side of the two L-shaped frames close to each other; and a center column is rotatably installed on one side of the inclined plate. The hydraulic rod is opened to push the connecting rod downward, the connecting rod moves downward to drive the inclined plate to press downward and then rotate, the center column is lifted upward, the inclined plate is turned over and reset, the center column is placed on the upper part of the supporting plate, the turnover of the side frame is realized, the circuit board is turned over after one side is cleaned, the other side is turned over for cleaning, the double sides of the circuit board can be sequentially cleaned compared with the existing device, vibration is generated when the center column falls on the supporting plate during the turnover of the side frame, water drops on the cleaned circuit board are shaken and knocked off, and subsequent rapid drying is realized.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic product cleaning, in particular to an electronic product automatic cleaning and drying device and method thereof. BACKGROUND

[0002] "3C products" are the collective term for computer, communication and consumer electronics, also known as "information home appliances". For example, computers, tablet computers, mobile phones or digital audio players, etc. Circuit board is an important part of 3C electronics, and PCB photoresist is a kind of material that cannot be lacked in the process of electronic manufacturing, which is widely used in the production of circuit board. There are many methods for cleaning photoresist, and chemical dissolution is one of them, which dissolves and cleans the photoresist on the surface of the circuit board by using propanol.

[0003] The prior art discloses a circuit board cleaning device with the application number CN202410457965.7, which discloses that the surface of the circuit board is cleaned by the vibrating cleaning liquid, thereby avoiding the direct flushing of the circuit board surface by the large water flow, 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 not in direct contact with the bottom surface of the water tank, so as to avoid the knocking between the circuit board and the bottom surface of the water tank caused by the vibration of the bottom surface of the water tank.

[0004] The above device can clean the circuit board, but when cleaning both sides of the circuit board, the circuit board needs to be disassembled and turned over to clean the other side of the circuit board. It cannot quickly turn over and clean the circuit board after cleaning, and it cannot adjust the wiping force when wiping and cleaning the circuit board. SUMMARY

[0005] The present application relates to the technical field of electronic product cleaning, in particular to an electronic product automatic cleaning and drying device and method thereof.

[0006] The present application relates to the technical field of electronic product cleaning, in particular to an electronic product automatic cleaning and drying device and method thereof.

[0007] The utility model provides an automatic cleaning and drying device for electronic products, which comprises a work box, a supporting plate fixedly installed at the middle part of the inner cavity of the work box, an L-shaped frame fixedly connected with the work box arranged on one side of the supporting plate, an inclined plate rotatably installed on the side of the two L-shaped frames close to each other, a center column rotatably installed on one side of the inclined plate, the center column being supported on the upper part of the supporting plate at one end, an L-shaped plate fixedly arranged on the side of the two inclined plates close to each other, a connecting rod connected with the two inclined plates arranged below the L-shaped plate, a hydraulic rod fixedly installed on the lower end surface of the L-shaped plate, the extension end of the hydraulic rod being connected with the middle part of the connecting rod, a side frame fixedly installed on the side of the center column close to each other on both sides, a swing plate rotatably installed on one side of the supporting plate, the swing plate being rotatably connected with the side frame on the side away from the supporting plate, a plurality of clamping units for fixing the circuit board during cleaning and drying being commonly arranged between the two side frames, a washing unit arranged on the side of the work box away from the L-shaped plate, a wiping unit arranged above the clamping unit, and a drying unit arranged on the side of the work box away from the washing unit.

[0008] Further, a plurality of guide plates are arranged on the lower end surface of the side frame, the plurality of guide plates correspond to the plurality of clamping units one by one, the lengths of the plurality of guide plates increase in sequence from front to back, a threaded rod is rotatably installed on the middle part of the side frame through a motor, a plurality of convex plates are threadedly rotatably installed on the two threaded rods, a group of left-right symmetrical folding plates are rotatably installed on the side of each group of convex plates close to each other, the folding angles of each group of folding plates increase in sequence from front to back, a fixed column fixedly connected with the side frame is rotatably installed at the folding angle of the middle part of the folding plate, a U-shaped plate is commonly rotatably installed at the lower part of each group of folding plates, a sliding rod is fixedly installed on both sides of the U-shaped plate, and the two sliding rods of each group are slidably arranged in the corresponding guide plate.

[0009] Further, the clamping unit comprises a first folding angle plate, a plurality of first folding angle plates are arranged, and each group of first folding angle plates is symmetrically arranged, an adjusting groove is arranged in the middle part of each group of first folding angle plates and is arranged on the U-shaped plate, an adjusting rod is rotatably installed in the middle part of each adjusting groove, the adjusting rod and the U-shaped plate are rotatably connected through a motor in the middle part, a moving piece is threadedly rotatably installed in the middle part of the adjusting rod, pull plates are hingedly arranged on both sides of the moving piece, the pull plates on both sides penetrate through the corresponding adjusting grooves and are hingedly connected with the first folding angle plate, and a rear plate is fixedly installed on the side of the first folding angle plate away from the adjusting rod.

[0010] Further, a sprocket is fixedly installed at the front end of the adjusting rod, a chain is commonly installed between the sprockets, a telescopic plate is fixedly installed on both sides of the upper end surface of the U-shaped plate, a moving plate is commonly fixedly installed at the extension end of the telescopic plates on both sides, a plurality of electric push rods are fixedly installed on the lower end surface of the moving plate, a bidirectional traction plate is fixedly installed at the extension end of the electric push rods, a second folding angle plate is fixedly installed on both sides of the bidirectional traction plate through a round shaft, and the round shaft is slidably arranged in the corresponding rear plate.

[0011] Further, the flushing unit comprises a bracket, a storage box is arranged on the upper end face of the bracket, the storage box is used for storing propanol for flushing photoresist on the circuit board, a connecting pipe is arranged on one side of the storage box, a cross rod is rotatably arranged on the middle part of the front side of the work box, a rotating plate is fixedly arranged on the middle part of the cross rod, and the connecting pipe on the side away from the storage box is communicated with the rotating plate.

[0012] Further, a plurality of spray heads are arranged on the side away from the connecting pipe of the rotating plate, a direction adjusting wheel is fixedly arranged on one side of the cross rod, a driving plate connected with the work box through a motor is arranged on the side away from the rotating plate of the direction adjusting wheel, an oscillating plate rotatably connected with the work box is arranged outside the driving plate, an oscillating frame is fixedly arranged on one side of the upper part of the oscillating plate, and the oscillating frame is engaged with the direction adjusting wheel through the gear arranged on the lower part.

[0013] Further, the wiping unit comprises a sliding frame, the sliding frame is symmetrically arranged and slidably connected with the two sides of the work box through electric sliding blocks, a telescopic rod is fixedly arranged on the lower end face of the sliding frame, a fixed frame is fixedly arranged on the two telescopic rods, a central shaft is transversely rotatably arranged on the middle part of the fixed frame, a squeezing wheel is fixedly arranged on the middle part of the central shaft, a first bevel gear is fixedly arranged on the side of the central shaft penetrating through the fixed frame, and a front side frame is slidably arranged on the side close to the central shaft of the fixed frame.

[0014] Further, a contact wheel is rotatably arranged on the side close to the central shaft of the front side frame, a plurality of groups of ear plates are arranged on the side away from the central shaft of the front side frame, a synchronous rod is rotatably arranged between the plurality of groups of ear plates, a second bevel gear is fixedly arranged on one end of the synchronous rod, a sponge roller fixedly connected with the synchronous rod is rotatably arranged between each group of ear plates, a fixed block is fixedly arranged on one side of the front side frame and the fixed frame, and a rotating rod is rotatably arranged between the two fixed blocks.

[0015] Further, a motor connected with the fixed block is arranged on one side of the rotating rod, the output end of the motor is connected with the rotating rod, a moving ring is slidably arranged on the side away from the motor of the rotating rod, a third bevel gear engaged with the second bevel gear is fixedly arranged on the outside of the moving ring, a fourth bevel gear engaged with the first bevel gear is fixedly arranged on the middle part of the rotating rod, and the drying unit comprises two fixedly connected placing frames of the work box, and the two placing frames are jointly placed with a drying machine on the upper part.

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

[0017] S1: fixing before cleaning the circuit board

[0018] When the photoresist on the surface of the circuit board in the 3C electronic product is cleaned, first, the circuit board to be cleaned is placed on each first corner plate, then the motor is started to rotate the adjusting rod, the adjusting rod rotates to drive the moving part to move, the moving part moves to adjust the first corner plate on both sides of the circuit board through the pull plate on both sides, and then the two corner parts below the circuit board are clamped, then the electric push rod is controlled to push forward, and at this time the two-way traction plate drives the second corner plate to clamp the two corner parts above the circuit board, and when the folding plate rotates, the multiple clamping units slide downward, and at this time each clamping unit is staggered and arranged.

[0019] S2: Isopropanol rinsing photoresist:

[0020] The nozzle is opened to rinse the circuit board on the side facing the nozzle, the motor is opened to drive the driving plate to rotate, the driving plate rotates to drive the swing plate to swing, the swing plate swings to drive the swing frame to swing, and the swing frame swings to drive the rotating plate angle adjustment through the steering wheel, so that the spraying force of the nozzle when spraying isopropanol is adjusted, and at the same time, the rotating plate is also convenient for adjusting the range of the nozzle spraying. When the other side of the circuit board is cleaned, the hydraulic rod is opened to move downward, the hydraulic rod moves downward to drive the two side inclined plates to press downward through the connecting rod, the inclined plates press downward to lift the center column upward, at this time the side frame is turned over, the hydraulic rod is retracted at this time, and the side of the circuit board which has not been cleaned faces the rinsing unit. The above operation can be repeated to clean both sides of the circuit board.

[0021] S3: Circuit board drying:

[0022] When the cleaned circuit board is dried, the drying machine is opened to dry the surface of the cleaned circuit board.

[0023] The beneficial effects of the present application are:

[0024] 1. The hydraulic rod is opened to push the connecting rod downward, the connecting rod moves downward to drive the two side inclined plates to press downward, the inclined plates rotate downward to lift the center column upward, the center column synchronously drives the side frame to move upward, the swing plate in front of the side frame drives the side frame to turn over when the side frame moves upward, then the hydraulic rod is retracted, at this time the inclined plate is turned over and reset to make the center column rest on the upper part of the supporting plate, and then the side frame is turned over. By controlling the turning over of the side frame, the circuit board fixed on the side frame is turned over, and then the other side is turned over for cleaning. Compared with the existing device, the present application can clean both sides of the circuit board in turn, and after cleaning one side of the circuit board, the circuit board is quickly turned over without complicated disassembly and cleaning. When the center column falls on the supporting plate during the turning over of the side frame, vibration is generated to shake and knock off the water droplets on the cleaned circuit board for subsequent rapid drying.

[0025] 2. This invention uses a motor to drive a threaded rod to rotate. As the threaded rod rotates, it simultaneously moves multiple convex plates forward. The forward movement of the convex plates causes a folding plate to rotate, which in turn causes a U-shaped plate to move downwards. As the U-shaped plate moves downwards, it slides along a guide plate via a sliding rod, causing the multiple clamping units to be staggered. This effectively prevents the previous clamping unit from obstructing the rinsing of the circuit boards on the next clamping unit when rinsing multiple sets of clamping units. Compared to existing devices, this invention can rinse batches of circuit boards while avoiding uneven rinsing.

[0026] 3. In this invention, a motor drives the central adjusting rod to rotate. The adjusting rod, via a sprocket and chain, drives multiple adjusting rods to rotate. Simultaneously, the rotating rod causes the moving parts to move backward. As the moving parts move back and forth, a pull plate causes multiple sets of two first angle plates to move closer or further apart, thereby clamping circuit boards of different lengths. When the two first angle plates in each set are moved and adjusted, the rear plate synchronously adjusts the upper second angle plate, ensuring that the second angle plate and the first angle plate always remain on the same horizontal line. By activating the electric push rod to extend and retract, the bidirectional traction plate is raised and lowered. When the bidirectional traction plate moves, it causes the second angle plate to rise and fall, thus clamping circuit boards of different heights.

[0027] 4. This invention uses a motor to drive the drive plate to rotate. When the drive plate rotates, it causes the swing plate to swing left and right. When the swing plate swings left and right, it simultaneously causes the swing frame to swing. When the swing frame swings, it drives the rotating plate to rotate through the directional wheel. When the rotating plate rotates, it causes the nozzle on the rotating plate to rotate, thereby realizing the washing of a batch of circuit boards at different angles and with different pressures.

[0028] 5. In this invention, an electric slider is activated to move the sliding frame above a set of circuit boards to be wiped. Then, the telescopic rod is activated to lower the fixed frame until the sponge roller is located in front of the circuit board. Subsequently, the motor is activated to drive the rotating rod to rotate. When the rotating rod rotates, the fourth bevel gear meshes with the first bevel gear, thereby driving the central shaft to rotate. When the central shaft rotates, the extrusion wheel intermittently extrudes the contact wheel, thereby causing the sponge roller to intermittently press against the circuit board while rotating and cleaning it, so as to effectively wipe and clean the circuit board. When the rotating rod rotates, the third bevel gear meshes with the second bevel gear, thereby causing the synchronizing rod to drive the sponge roller to rotate and clean the circuit board. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is the schematic diagram of the whole front side structure of the present application;

[0031] Figure 2 is the schematic diagram of the whole back side structure of the present application;

[0032] Figure 3 is the schematic diagram of the inner cavity structure of the operation box of the present application;

[0033] Figure 4 is the schematic diagram of the front and back structure of the flushing unit of the present application;

[0034] Figure 5 is the schematic diagram of the back side structure of the flushing unit of the present application;

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

[0036] Figure 7 is the schematic diagram of the structure of the clamping unit of the present application;

[0037] Figure 8 is the schematic diagram of the front side structure between the L-shaped plate and the moving plate of the present application;

[0038] Figure 9 is the schematic diagram of the back side structure between the L-shaped plate and the moving plate of the present application;

[0039] Figure 10 is the schematic diagram of the structure of the wiping unit of the present application;

[0040] Figure 11 is the schematic diagram of the enlarged structure of A part of the present application. Figure 8

[0041] The reference signs in the drawings are as follows:

[0042] ​1, work box; 10, supporting plate; 11, L-shaped frame; 12, inclined plate; 13, center 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, sliding rod; 2, clamping unit; 21, U-shaped plate; 22, first folding corner plate; 221, rear plate; 23, adjusting groove; 24, adjusting rod; 241, moving piece; 242, pull plate; 243, chain wheel; 244, chain; 25, telescopic plate; 26, moving plate; 261, electric push rod; 262, bidirectional traction plate; 27, second folding corner plate; 3, flushing unit; 31, bracket; 311, storage box; 312, connecting pipe; 32, cross rod; 33, rotating plate; 331, spray head; 34, direction adjusting wheel; 35, driving plate; 36, swinging plate; 37, swinging frame; 4, wiping unit; 41, sliding frame; 42, telescopic rod; 43, fixed frame; 431, center 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 frame; 52, dryer. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] An electronic product automatic cleaning and drying device, which is a chemical method for removing conductive materials on a circuit board, specifically through propanol to clean the circuit board of parts in 3C electronic products, and then remove the photoresist on the surface of the circuit board, belongs to a kind of special equipment for integrated circuit board manufacturing.

[0045] As Figures 1-11As shown, including the work box 1, the middle of the two sides of the work box 1 is fixedly installed with the supporting plate 10, one side of the supporting plate 10 is provided with the L-shaped frame 11 fixedly connected with the work box 1, the two L-shaped frames 11 are rotatably installed with the inclined plate 12 on the side close to each other, the inclined plate 12 is rotatably installed with the center column 13 on one side, one end of the center column 13 is placed on the upper part of the supporting plate 10, the two inclined plates 12 are provided with the L-shaped plate 14 fixed with the work box 1 on the side close to each other, the L-shaped plate 14 is provided with the connecting rod 15 connected with the two inclined plates 12 below, the L-shaped plate 14 is fixedly installed with the hydraulic rod 16 on the lower end surface, the extension end of the hydraulic rod 16 is connected with the middle part of the connecting rod 15, the two center columns 13 are fixedly installed with the side frame 17 on the side close to each other, the supporting plate 10 is rotatably installed with the swing plate on one side, the swing plate is rotatably connected with the side frame 17 on the side away from the supporting plate 10, the two side frames 17 are commonly provided with a plurality of clamping units 2 for fixing the circuit board during cleaning and drying, the work box 1 is provided with the flushing unit 3 on the side away from the L-shaped plate 14, the clamping unit 2 is provided with the wiping unit 4 above, and the work box 1 is provided with the drying unit 5 on the side away from the flushing unit 3.

[0046] By opening the hydraulic rod 16 to push down the connecting rod 15, the connecting rod 15 moves downward to drive the two inclined plates 12 to press down, the inclined plate 12 rotates downward to lift the center column 13 upward, the center column 13 synchronously drives the side frame 17 to move upward, the swing plate in front of the supporting plate 10 drives the side frame 17 to overturn when the side frame 17 moves upward, then the hydraulic rod 16 retracts, at this time the inclined plate 12 overturns to reset to place the center column 13 on the upper part of the supporting plate 10, thereby realizing the overturning of the side frame 17, by controlling the overturning of the side frame 17, the circuit board fixed on the side frame 17 is turned over, thereby making the circuit board clean one side and then overturning to clean the other side. Compared with the existing device, the circuit board can be cleaned on both sides in turn, and after cleaning one side of the circuit board, it is quickly turned over, without complicated disassembly and cleaning of the circuit board, and when the side frame 17 overturns, the center column 13 falls on the supporting plate 10 to vibrate, thereby shaking and knocking off the water droplets on the cleaned circuit board for subsequent rapid drying.

[0047] The lower end surface of the side frame 17 is provided with a plurality of guide plates 171, the plurality of guide plates 171 correspond one-to-one with the plurality of clamping units 2, the length of the plurality of guide plates 171 increases from front to back, the middle part of the side frame 17 is rotatably installed with a threaded rod 172 through a motor, a plurality of convex plates 173 are threadedly rotatably installed on the two threaded rods 172, each group of convex plates 173 is rotatably installed with a group of left-right symmetrical folding plates 174 on the side close to each other, the folding angle of each group of folding plates 174 increases from front to back, the folding angle of the middle part of the folding plate 174 is rotatably installed with a fixed column 175 fixed with the side frame 17, each group of folding plates 174 is commonly rotatably installed with an L-shaped plate 21 below, the two sides of the L-shaped plate 21 are fixedly installed with a sliding rod 176, and the two sliding rods 176 of each group are respectively slidably located in the corresponding guide plate 171.

[0048] The clamping unit 2 comprises a first angle plate 22, the first angle plate 22 is provided with a plurality of groups and each group of the first angle plate 22 is symmetrically arranged, the middle part of each group of the first angle plate 22 is provided with an adjusting groove 23 opened on the Z-shaped plate 21, the middle part of each group of the adjusting groove 23 is rotatably installed with an adjusting rod 24, the middle part of the adjusting rod 24 is rotatably connected with the Z-shaped plate 21 through a motor, the middle part of the adjusting rod 24 is rotatably installed with a moving piece 241, the two sides of the moving piece 241 are hingedly connected with a pull plate 242, the two sides of the pull plate 242 are respectively penetrated through the corresponding adjusting groove 23 and are hingedly connected with the first angle plate 22, and the side, away from the adjusting rod 24, of the first angle plate 22 is fixedly installed with a rear plate 221.

[0049] When the plurality of Z-shaped plates 21 are staggered and arranged, the threaded rod 172 is driven to rotate by starting the motor, the plurality of convex plates 173 are synchronously moved forward when the threaded rod 172 rotates, the convex plates 173 are moved forward to drive the folding plates 174 to rotate, the Z-shaped plates 21 are driven to move downward when the folding plates 174 rotate, the plurality of clamping units 2 are staggered and arranged by the sliding rods 176 sliding along the guide plates 171 when the Z-shaped plates 21 move downward, so that the washing unit 3 can effectively avoid the previous group of clamping units 2 resisting the washing of the circuit board on the next group of clamping units 2 when the plurality of clamping units 2 are washed, and the present application can wash a plurality of circuit boards while avoiding the problem of uneven washing of the circuit boards compared with the prior art.

[0050] The front end of the adjusting rod 24 is fixedly installed with a chain wheel 243, the chain wheels 243 are commonly installed with a chain 244, the two sides of the upper end surface of the Z-shaped plate 21 are fixedly installed with a telescopic plate 25, the telescopic ends of the two sides of the telescopic plate 25 are commonly fixedly installed with a moving plate 26, the lower end surface of the moving plate 26 is fixedly installed with a plurality of electric push rods 261, the telescopic ends of the electric push rods 261 are fixedly installed with a bidirectional traction plate 262, the two sides of the bidirectional traction plate 262 are fixedly installed with a second angle plate 27 through a round shaft, and the round shaft is slidably arranged in the corresponding rear plate 221.

[0051] The motor is turned on to drive the adjusting rod 24 in the middle to rotate, the adjusting rod 24 drives a plurality of adjusting rods 24 to rotate through the chain wheel 243 and the chain 244, the adjusting rod 24 rotates to drive the moving part 241 to move backward, the moving part 241 moves forward and backward to drive a plurality of groups of two first angle plates 22 to move closer to each other or farther away from each other through the pull plate 242, so as to clamp and fix circuit boards of different lengths, when each group of two first angle plates 22 moves, the upper second angle plate 27 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 remain on the same horizontal line, and the second angle plate 27 is lifted through the extension of the electric push rod 261, and then the bidirectional traction plate 262 is lifted, the bidirectional traction plate 262 moves to drive the second angle plate 27 to lift, thereby clamping and fixing circuit boards of different heights.

[0052] The flushing unit 3 comprises a bracket 31, and a storage box 311 is arranged on the upper end face of the bracket 31 and used for storing propyl alcohol for flushing photoresist on the circuit board. A connecting pipe 312 is arranged on one side of the storage box 311. A horizontal rod 32 is rotatably arranged on the front side of the working box 1. A rotating plate 33 is fixedly arranged on the middle of the horizontal rod 32. The connecting pipe 312 is in communication with the rotating plate 33 away from the storage box 311.

[0053] A plurality of nozzles 331 are arranged on the side of the rotating plate 33 away from the connecting pipe 312. A steering wheel 34 is fixedly arranged on one side of the horizontal rod 32. A driving plate 35 is arranged on the side of the steering wheel 34 away from the rotating plate 33 and connected with the working box 1 through a motor. An oscillating plate 36 is rotatably arranged outside the driving plate 35. An oscillating frame 37 is fixedly arranged on one side of the upper part of the oscillating plate 36. The oscillating frame 37 is engaged with the steering wheel 34 through the gear arranged on the lower part.

[0054] The motor is turned on to drive the driving plate 35 to rotate. The driving plate 35 drives the oscillating plate 36 to oscillate left and right. The oscillating plate 36 drives the oscillating frame 37 to oscillate synchronously. The oscillating frame 37 drives the rotating plate 33 to rotate through the steering wheel 34. The rotating plate 33 drives the nozzles 331 on the rotating plate 33 to rotate, thereby realizing flushing of batches of circuit boards at different angles and different flushing forces.

[0055] The wiping unit 4 comprises a sliding frame 41, the sliding frame 41 is symmetrically arranged on two sides and is slidably connected with the working box 1 through an electric sliding block. A telescopic rod 42 is fixedly arranged on the lower end face of the sliding frame 41. A fixed frame 43 is fixedly arranged on the two sides of the telescopic rod 42. A central shaft 431 is transversely rotatably arranged in the middle of the fixed frame 43. An extrusion wheel 432 is fixedly arranged in the middle of the central shaft 431. A first bevel gear 433 is fixedly arranged on one side of the fixed frame 43 and penetrates through the central shaft 431. A front frame 44 is slidably arranged on one side of the fixed frame 43 close to the central shaft 431.

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

[0057] The rotating rod 472 is provided with a motor 471 connected with the fixed block 47 on one side, and the output end of the motor 471 is connected with the rotating rod 472, and the rotating rod 472 is slidingly installed with a moving ring 473 away from the motor 471, and the moving ring 473 is fixedly installed with a third bevel gear 474 engaged with the second bevel gear 461 outside, and the rotating rod 472 is fixedly installed with a fourth bevel gear 475 engaged with the first bevel gear 433 in the middle, and the drying unit 5 comprises two placing frames 51 fixedly connected with the operation box 1, and the two placing frames 51 are jointly placed with a dryer 52 on the upper part.

[0058] The electric sliding block is opened to drive the sliding frame 41 to move above the required group of circuit boards to be wiped, and then the telescopic rod 42 is opened to make the fixed frame 43 move downward until the sponge roller 462 is located at the front side of the circuit board, and then the motor 471 is opened to drive the rotating rod 472 to rotate, and the rotating rod 472 rotates through the engagement of the fourth bevel gear 475 and the first bevel gear 433 to drive the central shaft 431 to rotate, and the central shaft 431 rotates through the intermittent extrusion of the contact wheel 441 by the extrusion wheel 432 to make the sponge roller 462 intermittently adhere to the circuit board during the rotation cleaning of the circuit board, so that the circuit board is effectively wiped and cleaned, and the rotating rod 472 rotates through the engagement of the third bevel gear 474 and the second bevel gear 461 to drive the synchronous rod 46 to rotate the sponge roller 462 to clean the circuit board.

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

[0060] S1: Circuit board cleaning before fixing:

[0061] When the photoresist on the surface of the circuit board in the 3C electronic product is cleaned, first place the circuit board to be cleaned on each first corner plate 22, then start the motor to rotate the adjusting rod 24, which drives the moving part 241 to move, and the moving part 241 moves to adjust the first corner plate 22 on both sides of the circuit board through the pull plate 242 on both sides, thereby clamping the two corner parts below the circuit board, then control the electric push rod 261 to push forward, and the bidirectional traction plate 262 drives the second corner plate 27 to clamp the two corner parts above the circuit board, and the folding plate 174 rotates to slide the multiple clamping units 2 downward, and each clamping unit 2 is arranged in a staggered manner at this time;

[0062] S2: Isopropanol rinsing photoresist:

[0063] Turn on the nozzle 331 to rinse the circuit board facing the nozzle 331, turn on the motor to drive the driving plate 35 to rotate, and the driving plate 35 rotates to drive the swing plate 36 to swing, and the swing plate 36 swings to drive the swing frame 37 to swing, and the swing frame 37 swings to drive the rotating plate 33 to adjust the angle through the steering wheel 34, thereby adjusting the spraying force of the nozzle 331 when spraying isopropanol, and at the same time, the rotating plate 33 also facilitates adjusting the spraying range of the nozzle 331, when cleaning the other side of the circuit board, open the hydraulic rod 16 to move downward, and the hydraulic rod 16 moves downward to drive the two side inclined plates 12 to press downward through the connecting rod 15, and the inclined plate 12 presses downward to lift the center column 13 upward, at this time the side frame 17 is turned over, at this time the hydraulic rod 16 is retracted, and the circuit board is not cleaned on one side facing the rinsing unit 3, and the above operation is repeated to clean both sides of the circuit board.

[0064] S3: Circuit board drying:

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

[0066] In use, the hydraulic rod 16 is opened to push the connecting rod 15 downward, the connecting rod 15 moves downward to drive the two inclined plates 12 to press downward, the inclined plates 12 rotate to lift the center column 13 upward, the center column 13 drives the side frame 17 to move upward, the side frame 17 drives the swing plate in front of the supporting plate 10 to overturn, then the hydraulic rod 16 is retracted, at this time, the inclined plate 12 is overturned and reset to place the center column 13 on the upper part of the supporting plate 10, thereby realizing the overturning of the side frame 17, the overturning of the side frame 17 is controlled to overturn the circuit board fixed on the side frame 17, thereby realizing the overturning of the circuit board to clean the other side, compared with the prior art, the circuit board can be cleaned on both sides in turn, and after cleaning one side of the circuit board, the circuit board is quickly overturned without complicated disassembly and cleaning, and when the side frame 17 is overturned, the center column 13 falls on the supporting plate 10 to vibrate and knock off the water droplets on the cleaned circuit board for subsequent rapid drying;

[0067] The motor is opened to drive the threaded rod 172 to rotate, the threaded rod 172 rotates to drive the plurality of convex plates 173 to move forward, the convex plates 173 move forward to rotate the folding plate 174, the folding plate 174 rotates to drive the L-shaped plate 21 to move downward, the L-shaped plate 21 moves downward to slide along the guide plate 171 through the slide rod 176 to dislocate and arrange the plurality of clamping units 2, thereby effectively avoiding the washing of the circuit board on the next set of clamping units 2 when the previous set of clamping units 2 is washed.

[0068] The motor is opened to drive the middle adjusting rod 24 to rotate, the adjusting rod 24 drives the plurality of adjusting rods 24 to rotate through the chain wheel 243 and the chain 244, the adjusting rod 24 rotates to drive the moving part 241 to move backward, the moving part 241 moves forward and backward to drive the two first folding angle plates 22 in each group to move closer to or farther away from each other through the pull plate 242, thereby clamping the circuit board of different lengths, when the two first folding angle plates 22 in each group move, the upper second folding angle plate 27 is synchronously adjusted through the setting of the rear plate 221, thereby realizing that the second folding angle plate 27 and the first folding angle plate 22 always maintain the same horizontal line, the electric push rod 261 is opened to extend and retract, thereby driving the bidirectional traction plate 262 to move up and down, the bidirectional traction plate 262 moves to drive the second folding angle plate 27 to move up and down, thereby clamping the circuit board of different heights;

[0069] The motor is started to drive the driving plate 35 to rotate, the driving plate 35 drives the swing plate 36 to swing left and right when rotating, the swing plate 36 drives the swing frame 37 to swing synchronously when swinging left and right, the swing frame 37 drives the rotating plate 33 to rotate through the steering wheel 34 when swinging, the rotating plate 33 drives the nozzle 331 on the rotating plate 33 to rotate when rotating, and then the batch of circuit boards are washed at different angles and different impact forces, the electric sliding block is started to drive the sliding frame 41 to move to the top of a group of circuit boards needed to be wiped, then the telescopic rod 42 is started to make the fixed frame 43 move down until the sponge roller 462 is located at the front side of the circuit board, then the motor 471 is started to drive the rotating rod 472 to rotate, the rotating rod 472 drives the central shaft 431 to rotate through the fourth bevel gear 475 and the first bevel gear 433 when rotating, the central shaft 431 makes the sponge roller 462 intermittently press the contact wheel 441 through the extrusion wheel 432 when rotating, so that the sponge roller 462 is tightly pressed against the circuit board during the rotating cleaning time, and the circuit board is effectively wiped and cleaned, the rotating rod 472 drives the sponge roller 462 to rotate to clean the circuit board through the third bevel gear 474 and the second bevel gear 461 when rotating.

[0070] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. An electronic product automatic cleaning and drying device, comprising a work box (1), characterized in that, The middle part of the inner cavity of the work box (1) is fixedly provided with a supporting plate (10), one side of the supporting plate (10) is provided with an L-shaped frame (11) fixedly connected with the work box (1), two L-shaped frames (11) are rotatably provided with inclined plates (12) on the side close to each other, one side of the inclined plate (12) is rotatably provided with a center column (13), one end of the center column (13) is supported on the upper part of the supporting plate (10), the side close to each other of the two inclined plates (12) is provided with an L-shaped plate (14) fixed with the work box (1), the lower part of the L-shaped plate (14) is provided with connecting rods (15) connected with the two inclined plates (12); The lower end surface of the L-shaped plate (14) is fixedly provided with a hydraulic rod (16), the telescopic end of the hydraulic rod (16) is connected with the middle part of the connecting rod (15), the side close to each other of the two center columns (13) is fixedly provided with a side frame (17), one side of the supporting plate (10) is rotatably provided with a swing plate, the side away from the supporting plate (10) of the swing plate is rotatably connected with the side frame (17), a plurality of clamping units (2) for fixing the circuit board during cleaning and drying are provided between the two side frames (17), the side away from the L-shaped plate (14) of the work box (1) is provided with a washing unit (3), the upper part of the clamping unit (2) is provided with a wiping unit (4), and the side away from the washing unit (3) of the work box (1) is provided with a drying unit (5); The lower end surface of the side frame (17) is provided with a plurality of guide plates (171), 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 from front to back, the middle part of the side frame (17) is rotatably provided with threaded rods (172) through a motor, a plurality of convex plates (173) are threadedly rotatably provided on the two threaded rods (172), each group of convex plates (173) is rotatably provided with a group of left-right symmetrical folding plates (174) on the side close to each other, the folding angles of each group of folding plates (174) increase from front to back, the folding angle of the middle part of the folding plate (174) is rotatably provided with a fixed column (175) fixed with the side frame (17), and the lower part of each group of folding plates (174) is rotatably provided with a Z-shaped plate (21), the two sides of the Z-shaped plate (21) are fixedly provided with slide rods (176), and the two slide rods (176) of each group are slidably arranged in the corresponding guide plate (171); The clamping unit (2) comprises a first folding angle plate (22), a plurality of first folding angle plates (22) are provided, and each group of first folding angle plates (22) is symmetrically provided, a adjusting groove (23) is formed in the middle part of each group of first folding angle plates (22) and provided on the Z-shaped plate (21), an adjusting rod (24) is rotatably provided in the middle part of each adjusting groove (23), the adjusting rod (24) is rotatably connected with the Z-shaped plate (21) through a motor, a moving piece (241) is threadedly rotatably provided in the middle part of the adjusting rod (24), pull plates (242) are hingedly connected on the two sides of the moving piece (241), the two pull plates (242) respectively penetrate through the corresponding adjusting grooves (23) and are hingedly connected with the first folding angle plate (22), and a rear plate (221) is fixedly provided on the side away from the adjusting rod (24) of the first folding angle plate (22).

2. The automatic cleaning and drying device for electronic products according to claim 1, characterized in that, The adjusting rod (24) is fixedly installed with a chain wheel (243) at the front end, chain wheels (243) are jointly installed with a chain (244), the two sides of the upper end face of the T-shaped plate (21) are fixedly installed with telescopic plates (25), the telescopic ends of the telescopic plates (25) on the two sides are jointly fixedly installed with a moving plate (26), a plurality of electric push rods (261) are fixedly installed on the lower end face of the moving plate (26), the telescopic ends of the electric push rods (261) are fixedly installed with a bidirectional traction plate (262), the two sides of the bidirectional traction plate (262) are fixedly installed with second angle plates (27) through round shafts which slide in the corresponding rear plates (221).

3. The automatic cleaning and drying device for electronic products according to claim 2, characterized in that, The flushing unit (3) includes a bracket (31), a storage box (311) is placed on the upper end face of the bracket (31), the storage box (311) is used for storing propyl alcohol for flushing photoresist on a circuit board, a connecting pipe (312) is arranged on one side of the storage box (311), a horizontal rod (32) is rotatably installed on the front side of the work box (1), the horizontal rod (32) is fixedly installed with a rotating plate (33) in the middle, and the side, away from the storage box (311), of the connecting pipe (312) is in communication with the rotating plate (33).

4. The automatic cleaning and drying device for electronic products according to claim 3, characterized in that, A plurality of spray heads (331) are arranged on the side, away from the connecting pipe (312), of the rotating plate (33), a direction adjusting wheel (34) is fixedly installed on one side of the horizontal rod (32), a driving plate (35) connected with the work box (1) through a motor is arranged on the side, away from the rotating plate (33), of the direction adjusting wheel (34), an oscillating plate (36) rotatably connected with the work box (1) is arranged outside the driving plate (35), an oscillating frame (37) is fixedly installed on one side of the upper part of the oscillating plate (36), and the oscillating frame (37) is engaged with the direction adjusting wheel (34) through the teeth arranged on the lower part.

5. The method for automatically cleaning and drying electronic products, wherein the electronic product automatic cleaning and drying device of claim 4 is used to clean and dry the products. The cleaning and drying includes the following steps: S1: fixing before cleaning the circuit board: When the photoresist on the surface of the circuit board in the 3C electronic product is cleaned, the circuit board to be cleaned is first placed on each group of first angle plates (22), then the motor is started to rotate the adjusting rod (24), the adjusting rod (24) drives the moving part (241) to move when rotating, the moving part (241) adjusts the first angle plates (22) on the two sides of the circuit board through the two sides of the pull plate (242) when moving, thereby clamping the two corner parts below the circuit board, then the electric push rod (261) is controlled to push forward, at this time the bidirectional traction plate (262) drives the second angle plate (27) to clamp the two corner parts above the circuit board, the folding plate (174) slides downward when rotating, at this time each group of clamping units (2) are staggered and arranged apart; S2: propyl alcohol flushing photoresist: The opening of the nozzle (331) to the circuit board facing the nozzle (331) is washed, and the motor is opened to drive the driving plate (35) to rotate. The driving plate (35) rotates to drive the swing plate (36) to swing, and the swing plate (36) swings to drive the swing frame (37) to swing. The swing frame (37) swings to drive the rotating plate (33) to adjust the angle through the direction wheel (34), so as to realize the adjustment of the spraying intensity of the nozzle (331) when spraying propanol. At the same time, the rotating plate (33) also facilitates the adjustment of the spraying range of the nozzle (331). When the other side of the circuit board is cleaned, the hydraulic rod (16) is opened and moved downward. The hydraulic rod (16) moves downward to drive the two side inclined plates (12) to press downward through the connecting rod (15). The inclined plate (12) is pressed downward, and the center column (13) is lifted upward. At this time, the side frame (17) is turned over. At this time, the hydraulic rod (16) is retracted, and the circuit board is not cleaned. The surface faces the washing unit (3), and the above operation can be repeated to realize the double-sided cleaning of the circuit board. S3: Circuit board drying: When the washed circuit board is dried, the drying machine (52) can be opened to dry the surface of the cleaned circuit board.

Citation Information

Patent Citations

  • Circuit board cleaning device

    CN118060263B

  • Circuit board cleaning device convenient to fix

    CN210816433U