CN215468648U - Automatic system of dismantling of abandonment circuit board - Google Patents
Automatic system of dismantling of abandonment circuit board Download PDFInfo
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- CN215468648U CN215468648U CN202121684496.0U CN202121684496U CN215468648U CN 215468648 U CN215468648 U CN 215468648U CN 202121684496 U CN202121684496 U CN 202121684496U CN 215468648 U CN215468648 U CN 215468648U
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- electric heating
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- 238000010408 sweeping Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000007790 scraping Methods 0.000 claims abstract description 23
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 13
- 238000005476 soldering Methods 0.000 abstract description 13
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- 238000012545 processing Methods 0.000 description 5
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- 238000007789 sealing Methods 0.000 description 2
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- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 229920001568 phenolic resin Polymers 0.000 description 1
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Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Processing Of Solid Wastes (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model discloses an automatic disassembly system for a waste circuit board, which comprises a feeding table, a clamp, a conveying device, an electric heating tunnel kiln device, a horizontal simple pendulum vibration device, a floating sweeping device, a floating scraping and brushing device, a tail gas collecting and purifying device, an explosion-proof fire-fighting device and a control system. The utility model takes the waste circuit board with the clamp to enter the electric heating tunnel kiln device, and carries out a horizontal simple pendulum vibration dismounting process of plug-in components, a floating sweeping device floating sweeping process of surface mount components and a floating scraping and brushing process of solder by the floating sweeping device in sequence under the constant temperature state that the waste circuit board is heated to be molten by the solder, thereby realizing the complete separation of the components, the soldering tin and the substrate. The system has the advantages of high automation degree, high disassembly efficiency, suitability for desoldering and separating circuit boards of different models, environmental friendliness, high safety and avoidance of harm to operators and environment.
Description
Technical Field
The utility model belongs to the technical field of renewable resource processing and utilization, and particularly relates to an automatic disassembly system for a waste circuit board.
Background
Printed circuit boards are providers of electrical connections for electronic components, are almost all electronic devices, and are also indispensable important components of various electronic products, such as small watches, remote controllers, and communication and military devices. The waste printed circuit board with components comprises precious metals (gold, silver, platinum and the like), rare metals (niobium, tantalum and the like) and a large amount of basic metals (copper, iron, aluminum, nickel and the like) from the material composition perspective, and also comprises components harmful to the environment, such as heavy metals of cadmium, nickel, lead, chromium and the like, and organic flame retardants and the like. If the abandoned circuit board is discarded at will or the processing mode is not standard, the method not only can cause serious pollution to the environment, but also can cause potential and long-term harm to human health and ecological environment.
The printed circuit board substrate material is usually glass fiber reinforced phenolic resin or epoxy resin, and is connected with various components in the modes of welding, plug-in and the like, so that the problems of complex types, various types, dense distribution and the like bring great difficulty and challenge to the recycling treatment work. At present, the printed circuit board is treated by directly crushing and separating metal and plastic without being disassembled, and compared with the treatment mode, the treatment mode adopting the disassembly technical means is the most ideal: the soldering tin on the circuit board is removed firstly, so that the components on the circuit board are disassembled, the components on the circuit board are effectively removed, and the soldering tin remover has the advantages of low energy consumption, no toxic or harmful gas and low component damage rate.
Through research and development, the chinese invention patent CN1600458A proposes a method for separating and recovering electronic components and solder from a printed circuit board on which electronic components are soldered, which uses the mechanical force of bristles on a roller brush to sweep down the electronic components of the circuit board and suck the loosened and scattered electronic and solder alloy by a powerful suction head beside the roller brush, but because the circuit board cannot be well sealed when being installed in a device, and because a substrate itself has many through holes such as mounting holes, pin jacks and the like, the lower surface of the circuit board is not easy to generate large negative pressure, and thus the dismounting effect on the inserted components is not good; electronic elements of the circuit board are swept down by the rolling brush, so that the elements are easily damaged; the circuit board cannot be continuously disassembled. The chinese utility model patent CN201721597066.9 proposes a circuit board disassembling device for recycling waste electrical devices, which only fixes the circuit board and then manually uses an electric iron to disassemble components, and the manual disassembly has the problems of low production efficiency, hidden danger brought to the health of workers by the production environment, and the like; the direct mechanical crushing can increase the difficulty of separating and recycling the metal and nonmetal mixture of the components and parts, so that rare and precious metals are lost; the hot air desoldering technology has low heat utilization rate and high energy consumption, and easily causes overheating damage of components, thereby reducing the recovery rate of the components. And automatic or semi-automatic component dismounting equipment is adopted abroad, so the price is high. Therefore, there is a need for an automatic disassembling system for waste circuit boards.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides an automatic disassembly system for a waste circuit board, which is suitable for disassembling and separating circuit boards of different models, has the advantages of high automation degree, short disassembly time, environmental friendliness and high safety, and avoids the harm to operators and environment.
In the utility model, a clamp is adopted to load circuit boards, the complexity is simple, the circuit boards of various specifications are loaded into the clamp of the same specification, then conveying equipment is started to convey the circuit boards into a circuit board preheating zone for preheating treatment, and the circuit boards are conveyed into a constant temperature dismantling zone for horizontal simple pendulum vibration dismantling of plug-in components, sweeping and brushing dismantling of surface mount components and solder scraping and brushing in sequence; finally, classified collection of components, solders and circuit boards is achieved; the technical scheme of the utility model is specifically introduced as follows.
An automatic disassembly system for waste circuit boards comprises a feeding table, a clamp, a conveying device and an electric heating tunnel
A kiln device and a control system; the feeding table is used for loading and transferring clamps fixed with waste circuit boards to the conveying equipment, an inlet of the conveying equipment is connected with an output end of the feeding table, and the conveying equipment extends into the tail end of the electric heating tunnel kiln device; the tail end of the electric heating tunnel kiln device is connected with a discharging area, and the discharging area is respectively connected with the circuit board collecting box and the clamp transferring device; the control system controls the electrical loops in the feeding platform, the conveying equipment and the electric heating tunnel kiln device; wherein:
the waste circuit board fixed in the clamp is in a horizontal state, and a clamp slot column is arranged on the outer side of the clamp; the conveying equipment comprises a rack, a conveying guide rail, a clamp clamping groove column telescopic buckle and a transmission motor; the conveying guide rail is arranged above the rack, the conveying guide rail is in slidable connection with the clamp, a clamp clamping groove column on the clamp is matched with a clamp clamping groove column telescopic buckle on the conveying equipment, and when the transmission motor drives the clamp clamping groove column telescopic buckle to move through the conveying belt, the clamp moves in the conveying guide rail along with the clamp clamping groove column telescopic buckle; the electric heating tunnel kiln device is characterized in that a circuit board preheating area and a constant-temperature removal area are sequentially arranged in the electric heating tunnel kiln device along the feeding direction, a horizontal simple pendulum vibration device used for implementing a floating sweeping process of a surface mount type component is sequentially and fixedly arranged above the surface of a conveying guide rail in the constant-temperature removal area, a floating sweeping device used for implementing a horizontal simple pendulum vibration removal process of the surface mount type component and a floating scraping and brushing device used for implementing a floating scraping process of a solder are sequentially and fixedly arranged, and a mounting component collecting area, a mounting component collecting area and a solder collecting area are respectively and correspondingly arranged at the lower position of the conveying guide rail.
In the utility model, electric heating devices are arranged in the circuit board preheating area and the constant temperature dismantling area.
According to the utility model, the horizontal simple pendulum device comprises a first motor, a first transmission gear, a second transmission gear, a first transmission shaft, a vibrating swing rod and a swinging hammer; the first transmission gear is meshed with the second transmission gear, the second transmission gear is arranged on the first transmission shaft, the first transmission shaft is connected with the vibration swing rod, and the vibration swing rod is connected with the swing hammer; when the oscillating hammer works, the first motor drives the first transmission gear to rotate within the range of 180 degrees in a reciprocating mode to drive the second transmission gear and the first transmission shaft to rotate, and then the oscillating rod drives the oscillating hammer to beat the waste circuit board in a single-pendulum mode.
In the utility model, a waste gas discharge end is arranged above the electric heating tunnel kiln device and is connected with a tail gas collecting and purifying device.
In the utility model, the electric heating tunnel kiln device is provided with an explosion-proof fire-fighting device.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the utility model combines the advantages of manual precise operation and mechanical assembly line operation, and can realize the separation of circuit boards with different types, shapes and sizes and components with different shapes;
(2) the clamp is adopted to load various circuit boards with different models, so that the compatibility is strong;
(3) the mode of preheating firstly and then preserving heat is adopted, so that the disassembly time of the circuit board is shortened;
(4) the method for removing the components in a constant temperature state is adopted, the pins of the circuit board are always kept in a molten state through heat preservation, the circuit board is fixed and kept to move forwards stably, and the components and the soldering tin of the circuit board are removed through sweeping and scraping, so that the removal rate and the component integrity rate are effectively improved;
(5) compared with similar equipment, the device has high efficiency, low energy consumption, environmental protection and practicability; meanwhile, high temperature, peculiar smell, harmful gas and the like generated by the heating end and the conveying belt are absorbed in a negative pressure absorption mode, are discharged after being subjected to environment-friendly treatment, accelerate air circulation and guarantee the quality of air in an operation room in a humanized mode;
(6) the whole disassembly process is high in automation degree, the labor intensity of workers is reduced, and the component disassembly efficiency is improved.
Drawings
Fig. 1 is a perspective view of an automatic waste circuit board removing system.
Fig. 2 is a schematic plan view of an automatic waste circuit board removal system.
Fig. 3 is a schematic structural view of the interior of the automatic waste circuit board removal system.
Fig. 4 is a schematic structural view of the jig.
Fig. 5 is a schematic perspective view of the feeding table and the conveying device.
FIG. 6 is a schematic diagram of a preheating region of a circuit board.
Fig. 7 is a structural schematic diagram of a horizontal simple pendulum vibration region.
FIG. 8 is a schematic view of the structure of the floating brushing and scraping area.
Fig. 9 is a schematic view of the unloading area.
FIG. 10 is a schematic view of the structure of the horizontal simple pendulum vibration, floating sweeping brush and floating scraping brush device.
Reference numbers in the figures: 001-feeding table, 101-clamp loading box, 104-clamp guide rail, 105-clamping plate slide block, 106-spring, 107-clamp rack, 002-conveying device, 201-conveying guide rail, 203-clamp clamping groove column telescopic buckle, 204-clamp clamping groove column, 205-clamp opening and closing mechanism, 003-electric heating tunnel kiln device, 301-electric heating device, 302-heat conducting plate, 303-gas collecting hood, 304-outer cover rack, 004-horizontal single pendulum vibration area, 401-horizontal single pendulum vibration device, 402-component mounting collection area, 403-component mounting discharge port, 405-pendulum hammer, 406-first motor, 408-first transmission gear, 409-second transmission gear, 410-first transmission shaft, 411-vibration pendulum rod, 412-connecting bearing, 005-wiping area, 501-floating wiping device, 502-patch device collecting area, 503-patch device discharging port, 504-floating wiping device, 505-slag discharging port, 508-swinging rod, 509-second connecting rod shaft, 511-second motor, 512-second transmission shaft, 513-first coupling, 514-first fixed arm, 515-first swinging arm, 516-electric roller brush, 517-first connecting rod shaft, 518-third motor, 519-second coupling, 520-third transmission shaft, 521-second swinging arm, 522-second fixed arm, 523-electric roller scraper, 006-clamp transferring device, 601-clamp unloading port, 007-circuit board collecting box, 008-tail gas collecting and purifying device, 009-explosion-proof fire-fighting device, 099-waste circuit board and 010-clamp.
Detailed Description
The utility model will be further explained with reference to the drawings and examples.
An automatic disassembly system for waste circuit boards comprises a feeding table 001, a clamp 010, a conveying device 002, an electric heating tunnel kiln device 003, a horizontal simple pendulum vibration device 401, a floating sweeping device 501, a floating scraping and brushing device 504, a clamp transfer device 006, a tail gas collecting and purifying device 008, an explosion-proof fire-fighting device 009 and a control system; the feeding table 001 is used for loading the modular fixture 010 and transferring the fixture 010 to the conveying device 002, the fixture 010 is used for fixing the waste circuit board 099, the conveying device 002 carries the fixture 010 for fixing the waste circuit board 099 to enter the electric heating tunnel kiln device 003, and a circuit board preheating area and a constant temperature dismantling area are sequentially arranged inside the electric heating tunnel kiln device 003 along the feeding direction; the circuit board preheating zone heats the waste circuit board 099 to a pre-disassembly temperature (195-; the clamp transfer device 006 is arranged at the output end of the electric heating tunnel kiln device 003 and used for receiving the modular clamp, loading, transferring and the like; the tail gas collecting and purifying device 008 is connected to a waste gas discharge end of the electric heating tunnel kiln device 003 to purify waste gas generated in the heating process; the control system adopts an integrated control cabinet to perform centralized control on all the electric loops; the anti-explosion fire protection device 009 is arranged in the heating area of the whole equipment and is in a normal state.
In the embodiment, the feeding table 001 is disposed at the foremost end, and is used for manually or mechanically loading and transferring the clamp 010 to the transfer apparatus 002; the clamp 010 loaded with the circuit board can be directly loaded into the feeding table 001 by a person or a mechanical arm, and then the feeding table 001 automatically sends the clamp together with the circuit board into the feeding hole of the conveying device 002 to complete the transferring action of the clamp 010.
In the embodiment, the clamp 010 is provided with a certain number of clamp units of the same specification, and the clamp 010 comprises a clamp rack 107, clamp slot columns 204, clamp guide rails 104, clamping plate sliders 105 and springs 106; the whole rectangle that is of anchor clamps frame 107, anchor clamps frame 107 inboard sets up two sets of anchor clamps guide rails 104, installation splint slider 105 on the anchor clamps guide rail 104, and two sets of splint sliders 105 are connected by two splint respectively, and two splint pass through spring 106 and anchor clamps frame 107 simultaneously and link to each other, and the clamping action takes place for anchor clamps 010 through splint, between two splint of abandonment circuit board 099 horizontal attitude loading into anchor clamps 010, the face orientation keeps unanimous.
In the embodiment, the conveying device 002 is arranged at the rear part of the feeding table 001 and used for receiving and conveying the clamp 010, the clamp 010 is received on the conveying device 002, and the conveying device 002 comprises a rack, a conveying guide rail 201, a clamp slot column telescopic buckle 203, a clamp opening and closing mechanism 205, a transmission motor and the like; the clamp 010 is placed in a track of the conveying equipment 002 and is pulled and conveyed by the clamp slot column telescopic buckle 203, a clamp opening and closing mechanism 205 is fixed in the middle of the conveying equipment 002 and used for adjusting the clamping state of the clamp 010 for fixing the circuit board 099, two ends of the clamp 010 are positioned in the transmission guide rail 201 in a horizontal posture, and the circuit board 099 is clamped in the middle of the clamp 010; a conveying guide rail 201 of the conveying device 002 conveys the clamp 010 into an electric heating tunnel kiln device 003, and a circuit board preheating area and a constant temperature dismantling area are sequentially arranged in the electric heating tunnel kiln device 003 from front to back; an electric heating device 301 with adjustable temperature is arranged in the circuit board preheating zone, the electric heating device 301 is fixed at the lower part of the track plane of the conveying equipment 002 and is used for heating the circuit board upwards, and the heating mode can adopt melting soldering tin or a hot air gun for heating; the constant temperature is demolishd the district and can be adopted heating wire heating heat preservation also can lead to the hot-blast heat preservation, the constant temperature is demolishd and is set gradually horizontal simple pendulum vibrating device 401 in the district, can press close to the unsteady brush device 501 of the adjustable interval of abandonment circuit board 099 face, can be along the unsteady scraping device 504 that abandonment circuit board 099 face was scraped, the position that corresponds horizontal simple pendulum vibrating device 401 under the guide rail plane of transfer apparatus 002, unsteady brush device 501, unsteady scraping device 504 sets gradually cartridge components and parts collecting region 402, paster components and parts collecting region 502, the solder collecting region. When the conveying equipment 002 conveys the clamp 010, the clamp 010 is temporarily stopped in a circuit board preheating area and a constant temperature dismantling area in sequence; when the conveying device 002 conveying clamp 010 stays at the circuit board preheating zone, the rapid preheating process is carried out, so that the waste circuit board 099 reaches the pre-disassembly temperature; after the clamp 010 brings the waste circuit board 099 into the constant-temperature removal area, the temperature of the whole waste circuit board 099 is in a constant-temperature state of melting the solder, and a horizontal simple pendulum vibration removal process of the plug-in component, a floating sweeping process of the surface mount component and a floating scraping process of the solder are respectively performed through the horizontal simple pendulum vibration device 401, the floating sweeping device 501 and the floating scraping device 504 in sequence; the circuit board (substrate) after the removal is then carried by the gripper 010 to be carried out of the circuit board collection box 007 by the transfer device 002.
In the embodiment, the horizontal simple pendulum vibration device 401 is fixedly arranged at the front end of the constant temperature dismantling area in the electric heating tunnel kiln device 003, and the horizontal simple pendulum vibration device 401 mainly comprises a swinging hammer 405, a first motor 406, a first transmission gear 408, a second transmission gear 409, a first transmission shaft 410, a vibrating swing rod 411, a connecting bearing 412 and the like; the first transmission gear 408 and the second transmission gear 409 are meshed with each other, the vibration swing rod 411 is connected with the vibration hammer 413 through the connecting bearing 412, the first motor 406 rotates to drive the first transmission gear 408 and the second transmission gear 409 to rotate in a reciprocating mode for 180 degrees, the second transmission gear 409 drives the first transmission shaft 410 and the connected vibration swing rod 411 to move, and the movement of the vibration swing rod 411 further drives the vibration hammer 405 to continuously hit the waste circuit board 099 in a simple pendulum mode, so that the components are removed; when a circuit board carried by the clamp 010 reaches the position right below the horizontal simple pendulum vibration device 401, the first motor 406 is started, and when the gear part is meshed, the swinging hammer 405 can realize simple pendulum vibration motion to complete the process of removing the inserted component, and the removed component falls into the inserted component collecting area 402; the gear meshing part stops rotating after working for a certain time, and the clamp 010 enters the next working area.
In the embodiment, the floating brush device 501 is fixedly arranged at the rear end of the horizontal simple pendulum vibration device 401, and the floating brush device 501 mainly comprises a swing rod 508, a second motor 511, a second transmission shaft 512, a first coupling 513, a first fixing arm 514, a first swing arm 515, a first electric roller brush 516, a first connection rod shaft 517 and the like; the main body of the floating brush device 501 is fixed on the frame through two first fixing arms 514 which are vertically connected with a first connecting rod shaft 517, two first swing arms 515 are arranged at two sides of the first connecting rod shaft 517, one end of each first swing arm is vertically connected with a swing rod 508, an electric roller brush 516 is fixedly installed on the swing rod 508, the other end of each first swing arm is connected with a second transmission shaft 512, the second transmission shaft 512 is connected with a second motor 511 through a first coupler 513, when a motor shaft is recycled and shortened, the electric roller brush 516 can cling to a waste circuit board 099 downwards, and the degree of clinging to the circuit board is controlled by adjusting the telescopic amount of the motors; when the clamp 010 carries the waste circuit board 099 to complete the removal of the plug-in components and then enters the sweeping area of the floating sweeping device 501, the clamp 010 drives the waste circuit board 099 to move at a slow speed in the horizontal direction, and the sweeping component is tightly attached to the surface of the circuit board to perform sweeping operation; the components that are swept out fall into the patch-type component collection area 502; after the wiping process is completed, the floating wiping device 501 is stopped, and the clamp 010 is released to enter the next process operation area.
In the embodiment, the floating brush scraper 504 is fixedly arranged at the rear end of the floating brush cleaner 501, and the floating brush scraper 504 is composed of a third motor 518, a second coupling 519, a third transmission shaft 520, a second swing arm 521, a second fixing arm 522, an electric roller scraper 523, a second link shaft 509, and the like; the principle of the device is the same as that of the floating sweeping device 501, only the electric roller brush 516 is replaced by an electric roller scraper 523; when the clamp 010 drives the waste circuit board 099 to complete the removal of the surface mount components and then enters the wiping area of the floating wiping device 504, the clamp 010 drives the waste circuit board 099 to move in the fixed horizontal direction in the vertical direction, and the wiping component is tightly attached to the surface of the circuit board to perform wiping operation; the scraped component falls into the solder collecting area; after the wiping process is completed, the floating wiping device 504 is stopped; the dismantling process of the circuit board components is completed, and the clamp is released to enter the next process operation area.
The clamp transfer device 006 is arranged at the tail end of the conveying device 002, when the component removing process of the waste circuit board 099 is completed, the clamp 010 carries the removed waste circuit board 099 optical plate into the clamp transfer device 006, the clamp 010 is loosened, the waste circuit board 099 is unloaded to fall on the circuit board collecting box 007 at the lower part, and then the clamp 010 after the waste circuit board 099 is unloaded is collected; the received jigs are placed in order for use in component removal operations for the next batch of waste circuit boards 099.
The anti-explosion fire protection device 009 is used for avoiding potential safety hazards which may occur in the heating process and the component removal process, in the embodiment, the anti-explosion fire protection device 009 is connected with the electric heating tunnel kiln device 003 through a pipeline in a sealing manner, a temperature sensor is arranged in the electric heating tunnel kiln device 003 for real-time detection, and when the threshold value is exceeded, the anti-explosion fire protection device 009 is started to spray a fire retardant into the electric heating tunnel kiln device 003; the anti-explosion fire protection device 009 is in a stand-by state and remains in a ready-to-trigger state.
The control system is used for controlling the action time, the sequence, the magnitude and the like of each node; all the control quantities are integrated in one set of control system, and when the control system is used, the internal parameters of the system are changed, so that the regulation, starting, switching and the like of the whole device can be completed. The action time, the sequence and the magnitude of each node are as follows: the feeding table 001 triggers the feeding; the transfer operation of the feeding table 001 to the transfer device 002; the conveying device 002 transmits the motion to the interior of the electric heating tunnel kiln device 003; retention time in the preheating zone of the circuit board, preheating temperature; a constant temperature in the constant temperature demolition zone; stopping, stopping and starting actions in the working area of the horizontal simple pendulum vibration device 401; stopping, dwell time, and starting actions in the working area of the floating sweeper 501; stopping, dwell time, and starting actions in the working area of the floating squeegee assembly 504; the unloading of the circuit board at the tail end of the transfer device 002 and the unloading of the gripper 010; the temperature trigger value of the explosion-proof fire-fighting device 009; and the tail gas collecting and purifying device 008 acts as a negative pressure value, a start, a stop and the like.
Example 1: automatic dismounting of waste television set circuit board
Example 2: automatic dismounting of waste desktop computer circuit board
The waste desktop computer circuit board is loaded into a clamp 010, and then the clamp is loaded into a feeding table 001; the conveying device 002 is started, the clamp 010 is taken out one by one from the feeding table 001 and is conveyed into a circuit board preheating area 003 (the circuit boards are immersed in molten soldering tin in an electric heating soldering tin mode), the waste desktop computer circuit boards are preheated for 10 s, the preheating temperature reaches 200 ℃, and then the waste desktop computer circuit boards are conveyed to a constant temperature dismantling area and are sequentially treated by a horizontal simple pendulum vibration device 401, a floating sweeping device 501 and a floating scraping and brushing device 504. The circuit board stays for 5 s in the working area of the horizontal simple pendulum vibration device 401 after being transferred to the constant temperature dismantling area, the components are firstly removed at the constant temperature of 235 ℃ in the period of time by adopting a horizontal simple pendulum vibration mode, and the dropped components are collected below the circuit board. After the circuit board of the waste desktop computer is removed for the first time, the circuit board is continuously conveyed to a working area of the floating sweeping device 501 for the second removal, two sides of the circuit board are swept in a close-contact mode, and components falling 5 s after repeated sweeping are collected below the circuit board. And after the second removal, the workpiece enters a working area of the floating scraping and brushing device 504 to be removed for the third time, and after the workpiece stays for 5 seconds, the fixture is conveyed to the fixture transfer device 006. After the clamp 010 is sent into the clamp transferring device 006, the clamp 010 loosens the waste flat circuit board, the waste desktop computer circuit board falls into the circuit board collecting box 007, the clamp 010 is recovered to load the circuit board to be disassembled again, the waste desktop computer circuit board disassembling board with the disassembling rate of 98% and various disassembled plug-in components, surface mount components, solder balls and the like are obtained, the disassembling treatment capacity is 80 kg/h, and no peculiar smell is discharged after the tail gas collecting and purifying device 008 is used for processing in the disassembling process.
Example 3: automatic dismounting of waste flat circuit board
The waste flat circuit board is loaded into the clamp 010, and then the clamp 010 is loaded into the feeding table 001; the conveying device 002 is started, the clamps are taken out one by one from the feeding table 001 and conveyed into a circuit board preheating area (the circuit boards are immersed in molten soldering tin in an electric heating soldering tin mode), the waste flat circuit boards are preheated for 10 s, the preheating temperature reaches 200 ℃, then the waste flat circuit boards are conveyed to a constant temperature dismantling area, and the waste flat circuit boards are sequentially treated by the horizontal single pendulum vibration device 401, the floating sweeping device 501 and the floating scraping and brushing device 504. The circuit board stays for 5 s in the working area of the horizontal simple pendulum vibration device 401 after being transferred to the constant temperature dismantling area, the components are firstly removed at the constant temperature of 220 ℃ in the period of time by adopting a horizontal simple pendulum vibration mode, and the dropped components are collected below the circuit board. After the first removal, the circuit board is continuously conveyed to the working area of the floating sweeping device 501 for second removal, and components falling off by repeated sweeping for 5 s are collected below the two sides of the circuit board by adopting a close-contact sweeping brush. And after the second removal, the workpiece enters a working area of the floating scraping and brushing device 504 to be removed for the third time, and after the workpiece stays for 5 seconds, the fixture is conveyed to the fixture transfer device 006. After the clamp 010 is sent into the clamp transferring device 006, the clamp 010 loosens the waste flat circuit board, the circuit board falls into the circuit board collecting box 007, the clamp 010 is recycled to load the circuit board to be disassembled again, the television waste circuit board disassembly plate with the disassembly rate of 98% and various disassembled plug-in components, surface mount components, solder balls and the like are obtained, the disassembly treatment capacity is 50 kg/h, and no peculiar smell is discharged after the treatment of the tail gas collecting and purifying device 008 in the disassembly process.
Example 4: automatic dismounting of waste mobile phone circuit board
The waste mobile phone circuit board is arranged in the clamp 010, and then the clamp 010 is arranged in the feeding table 001; the conveying device 002 is started, the clamp 010 is taken out one by one from the feeding table 001 and is conveyed into a circuit board preheating area (the circuit boards are immersed in molten soldering tin in an electric heating soldering tin mode), the waste mobile phone circuit boards are preheated for 5 seconds, and the waste mobile phone circuit boards are conveyed to a constant temperature dismantling area after the preheating temperature reaches 200 ℃, and are sequentially treated by the horizontal single pendulum vibration device 401, the floating sweeping device 501 and the floating scraping and brushing device 504. The circuit board stays in the working area of the horizontal simple pendulum vibration device 401 for 3 s after being transferred to the constant temperature dismantling area, the components are firstly removed at the constant temperature of 240 ℃ in the period of time by adopting a horizontal simple pendulum vibration mode, and the dropped components are collected below the circuit board. After the waste mobile phone circuit board is removed for the first time, the waste mobile phone circuit board is continuously conveyed to a working area of the floating sweeping device 501 for the second removal, two sides of the waste mobile phone circuit board are swept tightly, and components falling by 2 s are swept repeatedly and collected below the waste mobile phone circuit board. And after the second removal, the workpiece enters a working area of the floating scraping and brushing device 504 to be removed for the third time, and after the workpiece stays for 5 seconds, the clamp 010 is sent to the clamp transfer device 006. After the clamp 010 is sent into the clamp transferring device 006, the clamp 010 loosens the waste flat circuit board, the waste mobile phone circuit board falls into the circuit board collecting box 007, the clamp 001 is recycled to load the circuit board to be disassembled again, the television waste circuit board disassembling board with the disassembling rate of 99% and various disassembled plug-in components, surface mount components, solder balls and the like are obtained, the disassembling treatment capacity is 150 kg/h, and no peculiar smell is discharged after the tail gas collecting and purifying device 008 is used for processing in the disassembling process.
The automatic disassembling system of the circuit board is suitable for automatically disassembling the circuit boards of various types of electronic products, has the advantages of strong applicability, high automation degree, short disassembling time, environmental friendliness and high safety, and avoids harm to operators and environment.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. An automatic disassembly system for waste circuit boards is characterized by comprising a feeding table, a clamp and a conveying device
Preparing and electrically heating a tunnel kiln device and a control system; the feeding table is used for loading and transferring clamps fixed with waste circuit boards to the conveying equipment, an inlet of the conveying equipment is connected with an output end of the feeding table, and the conveying equipment extends into the tail end of the electric heating tunnel kiln device; the tail end of the electric heating tunnel kiln device is connected with a discharging area, and the discharging area is respectively connected with the circuit board collecting box and the clamp transferring device; the control system controls the electrical loops in the feeding platform, the conveying equipment and the electric heating tunnel kiln device; wherein:
the waste circuit board fixed in the clamp is in a horizontal state, and a clamp slot column is arranged on the outer side of the clamp; the conveying equipment comprises a rack, a conveying guide rail, a clamp clamping groove column telescopic buckle and a transmission motor; the conveying guide rail is arranged above the rack, the conveying guide rail is in slidable connection with the clamp, a clamp clamping groove column on the clamp is matched with a clamp clamping groove column telescopic buckle on the conveying equipment, and when the transmission motor drives the clamp clamping groove column telescopic buckle to move through the conveying belt, the clamp moves in the conveying guide rail along with the clamp clamping groove column telescopic buckle; the electric heating tunnel kiln device is characterized in that a circuit board preheating area and a constant-temperature removal area are sequentially arranged in the electric heating tunnel kiln device along the feeding direction, a horizontal simple pendulum vibration device used for implementing a floating sweeping process of a surface mount type component is sequentially and fixedly arranged above the surface of a conveying guide rail in the constant-temperature removal area, a floating sweeping device used for implementing a horizontal simple pendulum vibration removal process of the surface mount type component and a floating scraping and brushing device used for implementing a floating scraping process of a solder are sequentially and fixedly arranged, and a mounting component collecting area, a mounting component collecting area and a solder collecting area are respectively and correspondingly arranged at the lower position of the conveying guide rail.
2. The automatic waste circuit board disassembly system of claim 1, wherein electric heating means are provided in both the circuit board preheating zone and the constant temperature removal zone.
3. The automatic waste circuit board dismounting system according to claim 1, wherein the horizontal simple pendulum device comprises a first motor, a first transmission gear, a second transmission gear, a first transmission shaft, a vibrating swing rod and a swinging hammer; the first transmission gear is meshed with the second transmission gear, the second transmission gear is arranged on the first transmission shaft, the first transmission shaft is connected with the vibration swing rod, and the vibration swing rod is connected with the swing hammer; when the oscillating hammer works, the first motor drives the first transmission gear to rotate within the range of 180 degrees in a reciprocating mode to drive the second transmission gear and the first transmission shaft to rotate, and then the oscillating rod drives the oscillating hammer to beat the waste circuit board in a single-pendulum mode.
4. The automatic disassembling system for waste circuit boards as claimed in claim 1, wherein an exhaust gas discharging end is provided above the electric heating tunnel kiln device, and the exhaust gas discharging end is connected with the tail gas collecting and purifying device.
5. The automatic disassembling system for waste circuit boards as claimed in claim 1, wherein an explosion-proof fire-fighting device is provided on the electrically heated tunnel kiln device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121684496.0U CN215468648U (en) | 2021-07-23 | 2021-07-23 | Automatic system of dismantling of abandonment circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121684496.0U CN215468648U (en) | 2021-07-23 | 2021-07-23 | Automatic system of dismantling of abandonment circuit board |
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|---|---|
| CN215468648U true CN215468648U (en) | 2022-01-11 |
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| CN202121684496.0U Expired - Fee Related CN215468648U (en) | 2021-07-23 | 2021-07-23 | Automatic system of dismantling of abandonment circuit board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523481A (en) * | 2021-07-23 | 2021-10-22 | 上海第二工业大学 | Automatic disassembling system and method for waste circuit board |
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2021
- 2021-07-23 CN CN202121684496.0U patent/CN215468648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523481A (en) * | 2021-07-23 | 2021-10-22 | 上海第二工业大学 | Automatic disassembling system and method for waste circuit board |
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Granted publication date: 20220111 |