Circuit board cleaning and recycling device

Abstract

The present invention provides a circuit board cleaning and recovery device, comprising a box, a horizontal turntable, a cleaning tank, a trough filter, a cleaning liquid storage tank, a plurality of cleaning liquid nozzles, an air pump and a plurality of air nozzles; the box is hollow inside, the horizontal turntable is horizontally rotated and fixed to the bottom of the inner side of the box, the bottom center of the horizontal turntable is fixedly connected with a vertical rotating shaft, the vertical rotating shaft is driven by a first motor, at least two hydraulic drivers are vertically fixed to the upper part of the horizontal turntable, and the hydraulic drivers are symmetrical with the center of the turntable; the cleaning tank is connected to the horizontal turntable through at least 4 springs, a stirring blade is arranged on the inner side of the bottom of the cleaning tank, a vibrator is fixed to the outer bottom of the cleaning tank, at least two blind holes are arranged on the outer bottom of the cleaning tank, and the top of the hydraulic driver is inserted into the blind hole when the hydraulic driver is extended. The circuit board cleaning and recovery device of the present invention has high cleaning efficiency and less cleaning liquid residue.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board recycling and processing devices, and in particular relates to a circuit board cleaning and recycling device. Background Art

[0002] In recent years, the rapid development of integrated circuit technology and its products has made electronic circuit boards (Printed Circuit Board) an indispensable and important component in the modern information industry. With the acceleration of the speed and frequency of the development and promotion of electronic products, and the increasing demand of consumers for the functions of electronic products, a large number of discarded circuit boards are generated during the replacement and elimination of various electronic products. As an important part of electronic products, discarded circuit boards are widely present in various electronic and electrical products, such as common household appliances such as computers, televisions, and telephones. They are generally composed of ferrous metals (such as iron), non-ferrous and rare metals (copper, gold, silver, etc.), glass, plastics and other components (such as flame retardants, etc.), and have considerable recycling value.

[0003] At present, the recycling methods of waste circuit boards at home and abroad mainly include: physical method, chemical method, biological method and supercritical treatment method, etc. Among them, the physical method mainly uses the difference of different physical properties (such as density, conductivity, ferromagnetism, shape, etc.) to achieve effective separation of metals and non-metals after the circuit boards are broken, mainly including wind air separation, hydraulic shaking table, high-voltage electrostatic separation, eddy current separation, etc. Compared with other recycling methods, the physical method has less harm to the environment, good recycling efficiency, and low operating costs, so it is increasingly favored by people. When processing, the physical method needs to be cleaned and pre-treated to remove impurities and dust on the circuit board. The current circuit board cleaning has the disadvantages of low cleaning efficiency and more impurities and cleaning liquid residues after cleaning, which leads to a long time for the subsequent drying process and high energy consumption. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a circuit board cleaning and recycling device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a circuit board cleaning and recycling device, the circuit board cleaning and recycling device comprises a box body, a horizontal turntable, a cleaning tank, a slot filter, a cleaning liquid storage tank, a plurality of cleaning liquid nozzles, an air pump and a plurality of air nozzles;

[0006] The box body is hollow inside, and an openable and closable top cover is arranged on the top of the box body;

[0007] The horizontal turntable is fixed to the bottom of the inner side of the box body for horizontal rotation, a vertical rotating shaft is fixedly connected to the center of the bottom of the horizontal turntable, the vertical rotating shaft is driven by a first motor, at least two hydraulic drivers are vertically fixed to the upper part of the horizontal turntable, and the hydraulic drivers are symmetrical with the center of the turntable;

[0008] The cleaning tank is connected to the horizontal turntable through at least 4 springs, one end of each spring is fixed to the outside of the bottom of the cleaning tank and the other end is fixed to the horizontal turntable, the length of the spring after compression is greater than the height of the hydraulic driver when it is contracted, a stirring blade is arranged on the inner side of the bottom of the cleaning tank, and the stirring blade is driven by the second motor through the rotating shaft, a vibrator is fixed to the bottom of the outer side of the cleaning tank, at least two blind holes are arranged on the bottom of the outer side of the cleaning tank, the size of the blind hole corresponds to the size of the top of the hydraulic driver, the position of the blind hole corresponds vertically to the position of the top of the hydraulic driver, and the top of the hydraulic driver is inserted into the blind hole when the hydraulic driver is extended, a drain pipe is arranged at the bottom of the cleaning tank, and a switch is arranged on the drain pipe;

[0009] The groove filter is arranged inside the cleaning tank, the top of the groove filter is open, the groove filter is connected to the cleaning tank through a rigid retractable mechanism, the retractable mechanism can lift the groove filter upward to leave the cleaning tank, and a limiting mechanism for the groove filter is arranged in the cleaning tank, and the limiting mechanism is arranged above the stirring blade;

[0010] The cleaning liquid nozzles and air jets are alternately distributed around the upper side of the cleaning tank. The spray direction of the cleaning liquid nozzles is toward the inside of the cleaning tank. The cleaning liquid nozzles are connected to the cleaning liquid storage tank pipeline through an infusion pump, and the air jets are connected to the air pump pipeline.

[0011] The method of using the above-mentioned circuit board cleaning and recovery device is as follows: place the circuit board to be processed in the groove filter, spray the cleaning liquid to the circuit board through the cleaning liquid nozzle, and when the cleaning liquid is of appropriate amount, control to start the stirring blade and the vibrator for cleaning, and after cleaning, lift the groove filter upward to leave the inside of the cleaning tank through the retractable mechanism, then control to start the air pump through the jet nozzle to blow and remove the cleaning liquid film on the circuit board, and then place the groove filter downward in the cleaning liquid through the retractable mechanism, control to start the stirring blade and the vibrator for cleaning, and after cleaning, discharge the cleaning liquid in the tank through the drain pipe, and then control the hydraulic drive to extend to the top of the hydraulic drive to insert the blind hole, and then control the turntable to rotate centrifugally, and start the air pump to sweep and remove the cleaning liquid on the circuit board. The advantages of the circuit board cleaning and recovery device are as follows: the vibrator, the stirring blade, and the cleaning tank are connected to the horizontal turntable through at least 4 springs to realize the stirring of the cleaning liquid by the internal stirring blade and the irregular vibration of the outside during cleaning, thereby improving the disturbance of the cleaning liquid and improving the cleaning efficiency and cleaning effect; the retractable mechanism and the slot filter can separate the cleaning liquid and the circuit board without changing the liquid, and then blow away the cleaning liquid film formed on the circuit board through the air nozzle, thereby avoiding the problem that the cleaning efficiency and cleaning effect are affected by the cleaning liquid film formed on the circuit board during the stirring and vibration cleaning process; the cleaning tank is fixed after cleaning by controlling the hydraulic drive to extend to the top of the hydraulic drive and inserting the blind hole, and the turntable is controlled to rotate and drive the cleaning tank to rotate by the second motor, and the cleaning liquid attached to the circuit board is removed by centrifugation combined with air jet, thereby reducing the residual cleaning liquid. The provided slot filter is easier to separate water when rotating centrifugation and air jetting. If there is no slot filter, the water thrown out by centrifugation and air jetting may be reattached to the circuit board, thereby better reducing the residual cleaning liquid, saving drying energy, and eliminating the final rinsing process.

[0012] Preferably, the cleaning tank is cylindrical, and the slot filter is a cylindrical slot filter.

[0013] When the cleaning tank is cylindrical and the slot filter is a cylindrical slot filter, the stirring blade has a better stirring effect during the cleaning process, thereby improving the cleaning effect. When the cleaning liquid is removed by rotating centrifugation, the rotation is more stable.

[0014] Preferably, the height of the groove filter is 0.9-1.1 times the distance between the limiting mechanism and the top of the cleaning tank, and the outer diameter of the bottom surface of the groove filter is 0.9-0.95 times the inner diameter of the bottom surface of the cleaning tank.

[0015] Preferably, four hydraulic actuators are vertically fixed on the upper part of the horizontal turntable, and the hydraulic actuators are symmetrical about the center of the turntable;

[0016] Four blind holes are arranged at the outer bottom of the cleaning tank, the size of the blind holes corresponds to the size of the top of the hydraulic driver, the position of the blind holes corresponds vertically to the position of the top of the hydraulic driver, and the top of the hydraulic driver is inserted into the blind holes when the hydraulic driver is extended.

[0017] When 4 hydraulic drives and corresponding blind holes are provided, the rotation of the cleaning tank can be better fixed.

[0018] Preferably, the cleaning tank is connected to the horizontal turntable via 8 or 12 springs, and the springs are distributed in 2-3 circles around the center of the bottom of the cleaning tank.

[0019] The arrangement of the spring of the circuit board cleaning and recovery device can more evenly achieve external vibration of the cleaning tank during cleaning.

[0020] Preferably, the limiting mechanism is a strip body with one end fixed to the inner wall of the cleaning tank and the other end extending beyond the center of the cleaning tank. There are at least two strip bodies, and the strip bodies are symmetrical about the center of the cleaning tank.

[0021] The limiting mechanism isolates the stirring blade from the slotted filter, and the slotted filter intercepts the circuit board, which not only realizes the stirring of the cleaning liquid, but also avoids the stirring blade and the circuit board, avoids the influence of the circuit board on the stirring, and improves the life of the stirring blade.

[0022] Preferably, the rigid retractable mechanism is a hydraulic drive, matching gears and clips, or matching bolts.

[0023] Preferably, a supporting leg is provided at the bottom of the outer side of the box body, a steering wheel is provided at the bottom of the supporting leg, and the steering wheel is provided with a braking mechanism.

[0024] Preferably, 8-16 cleaning liquid nozzles are evenly distributed around the upper side of the cleaning tank, and 8-16 air nozzles are evenly distributed around the upper side of the cleaning tank.

[0025] Preferably, the cleaning tank and the slot-type filter are coaxial.

[0026] The beneficial effects of the present invention are as follows: the present invention provides a circuit board cleaning and recovery device, and the advantages of the circuit board cleaning and recovery device of the present invention are as follows: the vibrator, the stirring blade, and the cleaning tank are connected to the horizontal turntable through at least 4 springs to realize the stirring of the cleaning liquid by the internal stirring blade and the irregular vibration of the outside during cleaning, thereby improving the disturbance of the cleaning liquid and improving the cleaning efficiency and cleaning effect; the retractable mechanism and the slot filter can separate the cleaning liquid and the circuit board without changing the liquid, and then blow away the cleaning liquid film formed on the circuit board through the air jet nozzle, thereby avoiding the problem that the cleaning efficiency and cleaning effect are affected by the cleaning liquid film formed on the circuit board during the stirring and vibration cleaning process; the cleaning tank is fixed after cleaning by controlling the hydraulic drive to extend to the top of the hydraulic drive and inserting the blind hole, and the turntable is controlled to rotate and drive the cleaning tank to rotate by the second motor, and the cleaning liquid attached to the circuit board is removed by centrifugation combined with air jet, thereby reducing the residual cleaning liquid, and the provided slot filter is easier to separate water when rotating centrifugation and air jetting, and if there is no slot filter, the water centrifugally thrown out and air jetted out may be reattached to the circuit board, thereby better reducing the residual cleaning liquid, saving drying energy, and eliminating the final rinsing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a circuit board cleaning and recycling device according to an embodiment of the present invention.

[0028] Figure 2 It is a partial cross-sectional schematic diagram of the internal structure of the circuit board cleaning and recovery device according to an embodiment of the present invention, wherein the vertical plane passing through the central axis of the cleaning tank is taken as the cross section.

[0029] Among them, 1. box body, 2. horizontal turntable, 3. cleaning tank, 4. trough filter, 5. cleaning liquid storage tank, 6. cleaning liquid nozzle, 7. air nozzle, 8. vertical rotating shaft, 9. first motor, 10. hydraulic drive, 11. spring, 12. second motor, 13. vibrator, 14. limit mechanism, 15. rigid retractable mechanism, 16. stirring blade, 17. blind hole. DETAILED DESCRIPTION

[0030] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0031] Example 1

[0032] As a circuit board cleaning and recycling device according to an embodiment of the present invention, the circuit board cleaning and recycling device comprises a box body 1, a horizontal turntable 2, a cleaning tank 3, a slot filter 4, a cleaning liquid storage tank 5, 8-16 cleaning liquid nozzles 6, an air pump and 8-16 air nozzles 7;

[0033] The box body 1 is hollow inside, an openable top cover is provided on the upper part of the box body, support legs are provided on the outer bottom of the box body, a steering wheel is provided on the bottom of the support legs, and a braking mechanism is provided on the steering wheel;

[0034] The horizontal turntable 2 is horizontally rotated and fixed to the bottom of the inner side of the box body 1. The bottom center of the horizontal turntable 2 is fixedly connected with a vertical shaft 8, and the vertical shaft is driven by a first motor 9. Four hydraulic drivers 10 are vertically fixed on the upper part of the horizontal turntable, and the hydraulic drivers 10 are symmetrical with the center of the turntable.

[0035] The cleaning tank 4 is cylindrical and connected to the horizontal turntable 2 through 12 springs 11. The springs 11 are distributed in three circles with the center of the bottom of the cleaning tank. One end of each spring 11 is fixed to the outside of the bottom of the cleaning tank 4 and the other end is fixed to the horizontal turntable 2. The length of the spring after compression is greater than the height of the hydraulic driver when it is contracted. A stirring blade 16 is arranged on the inner side of the bottom of the cleaning tank. The stirring blade is driven by the second motor 12 through the rotating shaft. A vibrator 13 is fixed to the bottom of the outer side of the cleaning tank 4. Four blind holes 17 are arranged on the bottom of the outer side of the cleaning tank. The size of the blind hole 17 corresponds to the size of the top of the hydraulic driver 10. The position of the blind hole corresponds vertically to the position of the top of the hydraulic driver. When the hydraulic driver is extended, the top of the hydraulic driver is inserted into the blind hole. A drain pipe is arranged at the bottom of the cleaning tank, and a switch is arranged on the drain pipe.

[0036] The groove filter 4 is a cylindrical groove filter, which is arranged inside the cleaning tank. The cleaning tank and the groove filter are coaxial, and the top of the groove filter is open. The groove filter is connected to the cleaning tank through a rigid retractable mechanism 15, and the rigid retractable mechanism 15 is a matching gear and a card bar. The retractable mechanism 15 can lift the groove filter upward to leave the inside of the cleaning tank. A limiting mechanism 14 of the groove filter is arranged in the cleaning tank 4, and the limiting mechanism 14 is arranged above the stirring blade 16. The limiting mechanism 14 is a strip body with one end fixed to the inner side wall of the cleaning tank and the other end extending beyond the center of the cleaning tank. There are at least two strip bodies, and the strip bodies are symmetrical with the center of the cleaning tank. The height of the groove filter is 0.9-1.1 times the distance between the limiting mechanism and the top of the cleaning tank, and the outer diameter of the bottom surface of the groove filter is 0.9-0.95 times the inner diameter of the bottom surface of the cleaning tank.

[0037] The cleaning liquid nozzles and air jets are alternately distributed around the upper side of the cleaning tank. The spray direction of the cleaning liquid nozzles is toward the inside of the cleaning tank. The cleaning liquid nozzles are connected to the cleaning liquid storage tank pipeline through an infusion pump, and the air jets are connected to the air pump pipeline.

[0038] The method of using the circuit board cleaning and recovery device of this embodiment is as follows: place the circuit board to be processed in the slot filter, spray the cleaning liquid to the circuit board through the cleaning liquid nozzle, and when the cleaning liquid is of an appropriate amount, control to start the stirring blades and the vibrator for cleaning, and after cleaning, lift the slot filter upward through the retractable mechanism to leave the inside of the cleaning tank, then control to start the air pump through the jet nozzle to blow and remove the cleaning liquid film on the circuit board, and then place the slot filter downward in the cleaning liquid through the retractable mechanism, control to start the stirring blades and the vibrator for cleaning, and after cleaning, discharge the cleaning liquid in the tank through the drain pipe, and then control the hydraulic drive to extend to the top of the hydraulic drive to insert into the blind hole, and then control the turntable to rotate centrifugally, and start the air pump to sweep and remove the cleaning liquid on the circuit board. The advantages of the circuit board cleaning and recovery device of this embodiment are as follows: the vibrator, the stirring blade, and the cleaning tank are connected to the horizontal turntable through at least 4 springs to realize the stirring of the cleaning liquid by the internal stirring blade and the irregular vibration of the outside during cleaning, thereby improving the disturbance of the cleaning liquid and improving the cleaning efficiency; the retractable mechanism and the slot filter can separate the cleaning liquid and the circuit board without changing the liquid, and then blow away the cleaning liquid film formed on the circuit board through the air nozzle, thereby avoiding the problem that the cleaning efficiency is affected by the cleaning liquid film formed on the circuit board during the stirring and vibration cleaning process; the cleaning tank is fixed after cleaning by controlling the hydraulic drive to extend to the top of the hydraulic drive and inserting the blind hole, and the turntable is controlled to rotate and drive the cleaning tank to rotate by the second motor, and the cleaning liquid attached to the circuit board is removed by centrifugation combined with air jet, thereby reducing the residual cleaning liquid. The provided slot filter is easier to separate water when rotating centrifugation and air jetting. If there is no slot filter, the water centrifugally thrown out and air jetted out may be reattached to the circuit board, thereby better reducing the residual cleaning liquid, saving drying energy, and eliminating the final rinsing process.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A circuit board cleaning and recycling device, It is characterized in that The circuit board cleaning and recycling device comprises a box body, a horizontal turntable, a cleaning tank, a slotted filter, a cleaning liquid storage tank, a plurality of cleaning liquid nozzles, an air pump and a plurality of air jet nozzles; The box body is hollow inside, and an openable and closable top cover is arranged on the top of the box body; The horizontal turntable is fixed to the bottom of the inner side of the box body for horizontal rotation. The center of the bottom of the horizontal turntable is fixedly connected with a vertical rotating shaft, which is driven by a first motor. Four hydraulic drivers are vertically fixed on the upper part of the horizontal turntable, and the hydraulic drivers are symmetrical with the center of the turntable. The cleaning tank is cylindrical, and the trough filter is a cylindrical trough filter; the cleaning tank is connected to the horizontal turntable through at least 4 springs, one end of each spring is fixed to the outside of the bottom of the cleaning tank and the other end is fixed to the horizontal turntable, the length of the spring after compression is greater than the height of the hydraulic drive when it is contracted, a stirring blade is arranged on the inner side of the bottom of the cleaning tank, and the stirring blade is driven by the second motor through the rotating shaft, a vibrator is fixed to the bottom of the outer side of the cleaning tank, and 4 blind holes are arranged on the bottom of the outer side of the cleaning tank, and the size of the blind hole is the same as the size of the top of the hydraulic drive Correspondingly, the position of the blind hole corresponds vertically to the position of the top of the hydraulic driver, and when the hydraulic driver is extended, the top of the hydraulic driver is inserted into the blind hole, and a drain pipe is provided at the bottom of the cleaning tank, and a switch is provided on the drain pipe; the slot filter is provided inside the cleaning tank, and the top of the slot filter is open, and the slot filter is connected to the cleaning tank through a rigid retractable mechanism, and the retractable mechanism can lift the slot filter upward to leave the inside of the cleaning tank, and a limiting mechanism of the slot filter is provided in the cleaning tank, and the limiting mechanism is provided above the stirring blade; The cleaning liquid nozzles and air jets are alternately distributed around the upper side of the cleaning tank. The spray direction of the cleaning liquid nozzles is toward the inside of the cleaning tank. The cleaning liquid nozzles are connected to the cleaning liquid storage tank pipeline through an infusion pump, and the air jets are connected to the air pump pipeline.

2. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The height of the groove filter is 0.9-1.1 times the distance between the limiting mechanism and the top of the cleaning tank, and the outer diameter of the bottom surface of the groove filter is 0.9-0.95 times the inner diameter of the bottom surface of the cleaning tank.

3. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The cleaning tank is connected to the horizontal turntable through 8 or 12 springs, and the springs are distributed in 2-3 circles around the center of the bottom of the cleaning tank.

4. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The limiting mechanism is a strip body with one end fixed to the inner side wall of the cleaning tank and the other end extending beyond the center of the cleaning tank. There are at least two strip bodies, and the strip bodies are symmetrical about the center of the cleaning tank.

5. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The rigid retractable mechanism is a hydraulic drive, matching gears and clamping strips, or matching bolts.

6. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The outer bottom of the box body is provided with supporting legs, the bottom of the supporting legs is provided with steering wheels, and the steering wheels are provided with a braking mechanism.

7. The circuit board cleaning and recycling device according to claim 1, It is characterized in that 8-16 cleaning liquid spray heads are evenly distributed around the upper side of the cleaning tank, and 8-16 air jet nozzles are evenly distributed around the upper side of the cleaning tank.

8. The circuit board cleaning and recycling device according to claim 1, It is characterized in that The cleaning tank and the slot-type filter are coaxial.

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