Waste nonferrous metal recovery treatment equipment

Abstract

The invention relates to the technical field of non-ferrous metal recovery, and discloses waste non-ferrous metal recovery processing equipment which comprises two elastic conveying belts arranged in parallel, and the two elastic conveying belts are used for intermittently conveying waste circuit boards; the adjusting and moving frame is arranged below the elastic conveying belt, multiple sets of tin sucking assemblies are arranged in the adjusting and moving frame, each tin sucking assembly comprises a tin sucking wire, the multiple sets of tin sucking wires form a recycling area, each tin sucking wire is composed of multiple strands of silk threads and connected into a closed circuit, and the tin sucking wires have the two states of winding a short circuit and straightening out a passage; in a winding short-circuit state, the solder wick twists to enable the multiple strands of silk threads to be woven into a strand shape, and a circuit is in a short-circuit heating state; and in the path straightening-out state, the solder wick is twisted until the multiple strands of silk threads do not make contact with one another, and the circuit is in the path state. Compared with the mode of separating tin soldering particles by thermally blowing the circuit board through supersaturated steam, the mode of absorbing the tin liquid through hot melting can enable the tin liquid to be recycled more sufficiently, and the recycling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of non-ferrous metal recycling, and particularly to a waste non-ferrous metal recycling and processing device. Background Art

[0002] Non-ferrous metals, also known as non-ferrous metals in a narrow sense, refer to all metals except iron (sometimes also excluding manganese and chromium) and iron-based alloys. They can be divided into heavy metals, light metals, precious metals, and rare metals. Non-ferrous metals are the basic materials for the development of the national economy. Most industries such as aviation, aerospace, automobiles, machinery manufacturing, electricity, communication, construction, and household appliances are based on non-ferrous metal materials for production. Therefore, the recycling of non-ferrous metals has important significance for recycling.

[0003] Among them, in electronic waste, especially in waste circuit boards, the content of non-ferrous metal tin on them is relatively rich. Moreover, due to the shortage of tin ore resources, the recycling of tin metal from waste circuit boards is an urgent problem to be solved. In Chinese Patent CN116921399B, an automatic soldering treatment device and its efficient recycling method are disclosed. In this case, supersaturated steam is output by a spraying component to thermally blow the waste circuit board, so as to quickly separate the bare board, components, and solder particles, making the solder recycling operation of the waste circuit board more convenient and safer.

[0004] However, the above solution still has the following defects. When the supersaturated steam thermally blows the circuit board, the solder particles will not become molten, so some solder particles will be separated from the circuit board. However, some solder particles may still adhere to the pins of the components, resulting in incomplete solder recycling and reducing the recycling efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a waste non-ferrous metal recycling and processing device to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A waste non-ferrous metal recycling and processing device includes:

[0008] Two parallel elastic conveyor belts for intermittently conveying waste circuit boards;

[0009] A transfer frame arranged below the elastic conveyor belt. Multiple groups of tin suction components are provided in the transfer frame. The tin suction components include tin suction wires, and multiple groups of tin suction wires form a recycling area. The tin suction wire is composed of multiple strands of wire and is connected to a closed circuit, and the tin suction wire has two states: winding short circuit and straightening the path;

[0010] In the winding short-circuit state, the solder-absorbing wire is twisted so that multiple strands of wire are woven into strands, and the circuit is in a short-circuit heating state;

[0011] When the circuit is straightened out, the desoldering wire is twisted until the multiple wires do not touch each other and the circuit is in a connected state;

[0012] A mechanical arm is arranged above the elastic conveyor belt, a pressing plate is installed at the end of the mechanical arm, and the mechanical arm can control the pressing plate to move and adjust in the vertical and horizontal directions.

[0013] Preferably, the inner walls of the adjustment frame near both sides are slidably mounted with slide bars, and tension springs are connected between the opposite sides of the two slide bars and the inner walls of the adjustment frame, the tin suction assembly also includes two horizontal strips, and the two horizontal strips are rotatably mounted on the opposite sides of the two slide bars, and the tin suction wire is composed of multiple strands of copper wires arranged in parallel, and the multiple strands of copper wires are connected between the two horizontal strips, wherein the positive line and the negative line located at the edge positions of the two sides are respectively connected to the positive and negative poles of the circuit to form a current path;

[0014] The waste non-ferrous metal recovery and processing equipment also includes a driving unit for driving the two transverse slats to rotate in opposite directions.

[0015] Preferably, the detinning assembly also includes a spline tube and a spline shaft which are plugged into each other, one end of the spline tube is rotatably mounted on the inner wall of the slide bar, the spline shaft is rotatably mounted in a through hole opened inside the slide bar, and the cross plate is fixed to the end of the spline shaft passing through the slide bar, and the outer walls of the spline shafts on the same side are fixed with transmission wheels, and the transmission wheels are connected by a transmission belt.

[0016] Preferably, the waste nonferrous metal recycling and processing equipment further comprises a reaction box located below the elastic conveyor belt, and rotating racks capable of intermittent rotation are installed on both sides of the reaction box through brackets, and the two rotating racks are horizontally staggered;

[0017] The driving part includes two fixed shafts that penetrate and are rotatably installed on the side walls of the adjustment frame, and the two fixed shafts are arranged in a centrally symmetrical manner about the center of the adjustment frame. The two fixed shafts are respectively fixed to the ends of the corresponding support arms of the two rotating frames, and one end of the two fixed shafts extending into the adjustment frame is fixed with an incomplete bevel gear, and a driven bevel gear is fixed to the outer wall of the spline tube close to the incomplete bevel gear, the incomplete bevel gear and the driven bevel gear can be intermittently meshed, and the rotation directions of the driven bevel gears on both sides are opposite, and the outer wall of the spline tube is sleeved with a torsion spring that can reset and rotate it.

[0018] Preferably, the reaction box is filled with a solvent, and the solvent can clean the tin liquid adsorbed on the surface of the copper wire.

[0019] Preferably, a shelf board is installed at the inner bottom of the reaction tank, a separation comb is fixed on the top of the shelf board, and the gap between the separation comb and the copper wire corresponds to each other.

[0020] Preferably, the circuit path formed by the copper wire has the functions of timed power-on and power-off, and both the power-on and power-off intervals are carried out when the positive wire and the negative wire are in a separated state.

[0021] Preferably, after the pressing plate stops descending, the planes where the pins, solder joints and solder wicking at the bottom of the waste circuit board are staggered, and there is still a gap between the board body and the solder wicking.

[0022] Preferably, the waste non-ferrous metal recycling and processing equipment further includes a coating part, which is arranged below the elastic conveyor belt and is located upstream of the reaction tank along the conveying direction of the elastic conveyor belt. The coating part coats pine oil on the solder joints on the bottom surface of the waste circuit board by spraying or brushing.

[0023] Preferably, the waste non-ferrous metal recycling and processing equipment further includes a blowing part, which is arranged on the side wall of the reaction tank and the blowing direction corresponds to the position of the shifting frame.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] First, the present invention can form a net-shaped recycling area through multiple groups of solder wicking. Then, the robotic arm controls the pressing plate to press the waste circuit board downwards, so that the middle pins and solder joints are in contact with the multiple groups of solder wicking below. Under the action of the high temperature of the solder wicking, the solder joints can be melted by heat, and the melted solder is absorbed by the stranded solder wicking. In this way, compared with separating the solder particles by hot spraying the circuit board with supersaturated steam, the recovery of the solder can be more sufficient, avoiding the remaining of solder on the pins of the electronic components, improving the recovery efficiency, and at the same time, the bare board, solder joints and electronic components can be separated separately, providing preparatory work for subsequent classification processing and eliminating the need for unified crushing treatment.

[0026] Second, through further separation of the tin on the copper wire, the present invention enables the copper wire to repeatedly process the solder joints on the circuit board, and together with the conveying of the elastic conveyor belt, it achieves the effect of automated processing, further improving the recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 is a single installation structural schematic diagram of the shifting frame of the present invention;

[0029] Figure 3Schematic diagram of the shifting frame and partial enlargement of the present invention;

[0030] Figure 4 Top view of the shifting frame of the present invention;

[0031] Figure 5 Enlarged schematic diagram of the copper wire of the present invention;

[0032] Figure 6 Front cross-sectional view of the present invention;

[0033] Figure 7 Enlarged three-dimensional view of the rack plate and the separating comb of the present invention;

[0034] Figure 8 Flow chart of the steps of the present invention.

[0035] In the figure: 1, reaction tank; 2, rotating frame; 3, shifting frame; 4, fixed shaft; 5, elastic conveyor belt; 6, waste circuit board; 7, robotic arm; 8, pressing plate; 9, slide bar; 10, tension spring; 11, spline shaft; 12, spline tube; 13, cross bar; 14, copper wire; 14a, positive wire; 14b, negative wire; 15, drive wheel; 16, incomplete bevel gear; 17, driven bevel gear; 18, rack plate; 19, separating comb. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 8 , the embodiment of the present invention provides a waste non-ferrous metal recycling and processing device, including:

[0039] Two parallel elastic conveyor belts 5 for intermittently conveying waste circuit boards 6;

[0040] A shifting frame 3 disposed below the elastic conveyor belt 5, and multiple groups of tin suction components are provided in the shifting frame 3. The tin suction components include tin suction wires, and multiple groups of tin suction wires form a recovery area. The tin suction wires are composed of multiple strands of wires and are connected to a closed circuit, and the tin suction wires have two states: winding short circuit and straightening the path;

[0041] In the winding short-circuit state, the tin suction wire twists to braid multiple strands of wires into a strand shape, and the circuit is in a short-circuit heating state;

[0042] In the case of a straightened path state, the solder wick is twisted so that multiple strands of wire do not touch each other, and the circuit is in a conductive state;

[0043] A robotic arm 7 is provided above the elastic conveyor belt 5. A pressing plate 8 is installed at the end of the robotic arm 7, and the robotic arm 7 can control the pressing plate 8 to move and adjust in the vertical and horizontal directions.

[0044] In this embodiment, the waste circuit board 6 is conveyed by the elastic conveyor belt 5, as can be seen in Figure 1 and Figure 6 , the solder joints at the middle pin positions can be exposed by the support of the two elastic conveyor belts 5 on the side edges of the waste circuit board 6, so as to facilitate subsequent recycling processes;

[0045] When the waste circuit board 6 is conveyed to the transfer frame 3, the conveying stops. At this time, the solder wick in the transfer frame 3 switches to a winding short-circuit state, that is, multiple strands of the solder wick are twisted and wound into a strand shape. At this time, the circuit is in a short-circuit state and heats up due to the mutual contact of the wires. In this way, multiple groups of solder wicks can form a mesh-like recycling area. Then, the robotic arm 7 controls the pressing plate 8 to move vertically downward first. The pressing plate 8 presses the waste circuit board 6 downward, so that the middle pins and solder joints are in contact with the multiple groups of solder wicks below. Under the action of the high temperature of the solder wicks, the solder joints can be melted, and the molten solder is absorbed by the solder wicks wound into a strand shape. In this way, compared with using supersaturated steam to thermally spray the circuit board to separate the solder particles, the recovery of the molten solder can be more sufficient, avoiding the residual molten solder on the pins of the electronic components, improving the recovery efficiency, and at the same time, the bare board, solder joints and electronic components can be separated separately, providing preparatory work for subsequent classification processing, and no longer requiring unified crushing treatment;

[0046] And after the solder joints are in contact with the solder wicks, the pressing plate 8 can reciprocate in a direction perpendicular to the conveying direction of the elastic conveyor belt 5. In this way, the solder joints in the intervals of the solder wicks can be in contact with the solder wicks, so that all the solder joints below the waste circuit board 6 can be in contact with the solder wicks, thereby ensuring the full recovery of the solder liquid at the solder joints;

[0047] Moreover, it is worth mentioning that since the solder wick has multiple strands of wire twisted and wound into a strand shape, this can not only conduct heat more effectively, making the molten solder melt and adsorb faster, but also the twisted structure can promote the molten solder to penetrate into the braided layer. While improving the recovery efficiency of the molten solder, it can also make the absorption more sufficient, avoiding residues on the pins and the circuit board. Moreover, the strand-shaped solder wick has higher strength, and can also reduce the damage caused by the pins to the solder wicks when the pressing plate 8 drives the waste circuit board 6 to move horizontally, thereby improving its service life;

[0048] Then, after the tin liquid is recovered, the robotic arm 7 drives the pressing plate 8 to reset. Then, the solder wick in the shifting frame 3 is twisted so that they do not contact each other, and the circuit is in a conducting state. At this time, the tin liquid in the solder wick braid is separated onto each wire and solidifies as the temperature decreases. At the same time, it also prepares for the subsequent separation of the tin liquid on the solder wick.

[0049] Embodiment 2

[0050] In Embodiment 2, slide bars 9 are slidably installed on the inner walls of the shifting frame 3 near both sides, and tension springs 10 are connected between the opposite surfaces of the two slide bars 9 and the inner walls of the shifting frame 3. The solder sucking assembly further includes two cross bars 13, and the two cross bars 13 are respectively rotatably installed on the opposite surfaces of the two slide bars 9. The solder wick is composed of multiple strands of parallel copper wires 14, and the multiple strands of copper wires 14 are connected between the two cross bars 13. Among them, the positive wires 14a and negative wires 14a located at the two side edge positions are respectively connected to the positive and negative poles of the circuit to form a current path.

[0051] The waste non-ferrous metal recycling and processing equipment further includes a driving part for driving the two cross bars 13 to rotate in opposite directions.

[0052] See Figure 3 , the solder wick is composed of multiple groups of copper wires 14. The good thermal conductivity of the copper wires 14 can conduct heat more effectively. At the same time, it also has a certain flexibility, which is convenient for adjusting its shape. In the straightened conducting state, the copper wires 14 are parallel and do not contact each other. In the twisted short-circuit state, the driving part will drive the two cross bars 13 on both sides to twist in opposite directions, so that the copper wires 14 are twisted with each other in a twist form and then braided into a strand. At the same time, the copper wires 14 also contact each other, so that the positive and negative poles of the circuit are directly connected to form a short circuit and generate heat, providing a heat source for the melting of the tin liquid.

[0053] When switching back to the straightened conducting state again, the non-contact copper wires 14 can distribute the tin liquid on the surfaces of each copper wire 14 respectively to increase the surface area of the tin liquid and prepare for the subsequent separation of tin. Moreover, the pulling force provided by the tension spring 10 can further keep the copper wires 14 in a straightened state after being loosened, so as to further ensure that the copper wires 14 are parallel and do not contact each other.

[0054] It is worth mentioning that, see Figure 5 , the positive wire 14a and the negative wire 14a are spaced as far apart as possible, so as to avoid the tin liquid bridging between them in the straightened conducting state and ensure that the two states can be switched to each other.

[0055] Embodiment 3

[0056] In this Embodiment 3, the tin suction assembly further includes a spline tube 12 and a spline shaft 11 that are inserted into each other. One end of the spline tube 12 is rotatably installed on the inner wall of the slide bar 9, and the spline shaft 11 is rotatably installed in a through hole formed inside the slide bar 9. A cross bar 13 is fixed to the end of the spline shaft 11 that passes through the slide bar 9. Transmission wheels 15 are fixed to the outer walls of the spline shafts 11 on the same side, and the transmission wheels 15 are connected by a transmission belt for transmission.

[0057] See Figure 4 , as the copper wire 14 exerts a pulling force towards the middle on the cross bars 13 on both sides during the process of twisting and winding, through the cooperation of the spline shaft 11 and the spline tube 12, it will neither affect the rotation of the cross bar 13 nor prevent the cross bar 13 and the slide bar 9 from moving;

[0058] Moreover, through the cooperation between the transmission wheels 15 and the transmission belt, the spline tubes 12 on the same side can rotate synchronously so that all the tin suction wires can be switched synchronously. Among them, the transmission wheels 15 and the transmission belt are preferably in the form of a sprocket and chain for transmission to ensure the consistency of transmission.

[0059] Embodiment 4

[0060] In this Embodiment 4, an implementation method for separating and recycling the tin on the copper wire 14 is provided, so that the copper wire 14 can be reused, achieving the effect of automatic recycling and improving the recycling efficiency.

[0061] Specifically, the waste non-ferrous metal recycling and treatment equipment further includes a reaction tank 1 located below the elastic conveyor belt 5. Rotating frames 2 that can rotate intermittently are installed on both sides of the reaction tank 1 through brackets, and the two rotating frames 2 are horizontally staggered;

[0062] The driving part includes two fixed shafts 4 that are rotatably installed through the side wall of the adjustment frame 3, and the two fixed shafts 4 are centrosymmetric about the center of the adjustment frame 3. The two fixed shafts 4 are respectively fixed to the ends of the corresponding arms of the two rotating frames 2. Incomplete bevel gears 16 are fixed to the ends of the two fixed shafts 4 extending into the adjustment frame 3. A driven bevel gear 17 is fixed to the outer wall of the spline tube 12 near the incomplete bevel gear 16. The incomplete bevel gear 16 and the driven bevel gear 17 can intermittently mesh, and the rotation directions of the driven bevel gears 17 on both sides are opposite. A torsion spring that can reset the rotation of the spline tube 12 is sleeved on the outer wall of the spline tube 12.

[0063] The reaction tank 1 is filled with a solvent, which is used to clean the tin liquid adsorbed on the surface of the copper wire 14.

[0064] See Figures 1 - 3 and Figure 6, in the above implementation process, when a set of transfer frames 3 complete the hot melt recovery of the tin liquid, driven by the external structure, the rotating frame 2 rotates to switch the rotation of the transfer frame 3. Moreover, it is worth mentioning that since the rotating frame 2 is set in a horizontal and staggered state, the transfer frame 3 is always in a horizontal state during the rotation process. In this way, through the rotation of the rotating frame 2, the transfer and switching between different transfer frames 3 can be achieved. Combining with the conveying of the waste circuit board 6 by the elastic conveyor belt 5 can achieve the effect of automatic recovery and treatment of the tin liquid, improving the recovery efficiency;

[0065] Furthermore, during the rotation of the rotating frame 2, since the fixed shaft 4 is fixed to the rotating frame 2 and the fixed shaft 4 is rotatably connected to the transfer frame 3, during the rotation of the transfer frame 3, the fixed shaft 4 will rotate relative to the transfer frame 3, that is, the incomplete bevel gear 16 will rotate relative to the driven bevel gear 17, thereby driving the driven bevel gear 17 and the spline tube 12 to rotate to achieve the above-mentioned purpose of twisting the copper wire 14;

[0066] Moreover, by setting the meshing positions between the two-sided driven bevel gears 17 and the incomplete bevel gear 16, specifically, refer to Figure 4 , this can make the rotation directions of the two-sided spline tubes 12 opposite, so that the rotation directions of the two-sided cross plate strips 13 are also opposite, thereby achieving the above-mentioned effect of twisting the copper wire 14. And twisting both sides simultaneously can also improve the twisting effect on the copper wire 14 and ensure its angular state after twisting.

[0067] The setting of the torsion spring can provide a torsional force for the reset of the spline tube 12. When the transfer frame 3 rotates and switches, the incomplete bevel gear 16 disengages from the driven bevel gear 17. At this time, the spline tube 12 can rotate in the reverse direction under the action of the torsion spring. Combining with the pulling force of the above-mentioned tension spring 10, the copper wire 14 can be disassembled and restored to a parallel and non-contact state again, completing the state switch.

[0068] The restored copper wire 14 will then immerse into the solution in the lower reaction tank 1 to further separate and recover the tin liquid attached to the copper wire 14. And since the copper wire 14 is in a parallel state at this time, the tin liquid on it can be in contact with the solvent to the greatest extent, thereby further improving the cleaning efficiency.

[0069] Among them, the solvent can be copper sulfate solution or other solvents that can clean the tin liquid adsorbed on the surface of the copper wire 14. The copper sulfate solution can undergo a displacement reaction with the tin on the surface of the copper wire 14 to separate and dissolve it into the solvent, and at the same time, it will not affect the copper wire 14. Then, the tin in the solvent can be separated. In this way, compared with mechanical crushing followed by a series of separation and screening processes, not only the process is saved, but also the recovery efficiency of tin is improved.

[0070] Example 5

[0071] In this embodiment, a rack plate 18 is installed at the inner bottom of the reaction tank 1, and a separation comb 19 is fixed on the top of the rack plate 18, and the gap between the separation comb 19 and the copper wire 14 corresponds to each other.

[0072] In order to further improve the cleaning effect, after the transfer frame 3 is immersed in the solution, the separation comb 19 will pass through the gaps in the copper wire 14 and separate and comb the copper wire 14 as the transfer frame 3 moves. This not only facilitates the separation of the tin layer on the copper wire 14, but also can straighten the copper wire 14 again to ensure the state switching of the copper wire 14.

[0073] Among them, the separation comb 19 is preferably in the middle position. In this way, when the transfer frame 3 moves to the lowest position, that is Figure 6 the state shown, the separation comb 19 can be located in the middle of the copper wire 14. Because when the copper wire 14 is twisted, the torsional state of its middle part is the largest. Therefore, when the separation comb 19 moves to the middle position of the copper wire 14, it can ensure the complete separation of the copper wire 14, and further ensure the separated state of the copper wire 14.

[0074] In one more preferred embodiment, the circuit path formed by the copper wire 14 has functions of timed power-on and power-off, and both the power-on and power-off intervals are carried out when the positive wire 14a and the negative wire 14a are in a separated state.

[0075] In order to avoid the influence caused by power-on when the copper wire 14 is immersed in the solvent, the circuit path formed by the copper wire 14 should have functions of timed power-on and power-off to avoid other ionization reactions. The specific control of circuit power-on and power-off can be realized by existing technologies, and the time periods of power-off and power-on can also be combined with the position of the transfer frame 3. That is, when the transfer frame 3 is in the upper position, the circuit path starts to be powered on, and conversely, when the transfer frame 3 is in the lower position, the circuit path is powered off.

[0076] In one more preferred embodiment, after the pressing plate 8 stops descending, the planes where the pins, tin soldering points and solder-absorbing wires at the bottom of the waste circuit board 6 are in a staggered state, and there is still a gap between the plate body and the solder-absorbing wire. By setting the moving distance of the pressing plate 8, it can be avoided that the plate part of the waste circuit board 6 contacts the copper wire 14, so as to avoid affecting the circuit board.

[0077] In one more preferred embodiment, the waste non-ferrous metal recycling and treatment equipment further includes a coating part, which is arranged below the elastic conveyor belt 5 and is located upstream of the reaction tank 1 along the conveying direction of the elastic conveyor belt 5. The coating part coats pine oil on the tin soldering parts at the bottom surface of the waste circuit board 6 by spraying or brushing.

[0078] The waste non-ferrous metal recycling and processing equipment further includes a blowing part, which is arranged on the side wall of the reaction tank 1, and the blowing direction corresponds to the position of the transfer frame 3.

[0079] The specific structural diagrams of the coating part and the blowing part are not shown in the figure. The coating part can use existing spraying equipment or brushing equipment to spray or coat pine oil at the soldering joints of the circuit board, which is beneficial to the subsequent hot melting and adsorption of the soldering of the copper wire 14, so that tin can be fully recovered.

[0080] The blowing part can dry the transfer frame 3 after it detaches from the solution and eliminate the gas. Specifically, equipment such as a fan or a spray pipe can be used.

[0081] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed according to the existing technical common sense without any doubt. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0082] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste non-ferrous metal recycling and processing device, characterized in that, Including: Two parallel elastic conveyor belts (5), and the two elastic conveyor belts (5) are used for intermittently conveying waste circuit boards (6); A transfer frame (3) arranged below the elastic conveyor belt (5), multiple groups of tin suction components are arranged in the transfer frame (3), the tin suction components include tin suction wires, and multiple groups of tin suction wires form a recovery area. The tin suction wires are composed of multiple strands of wires and are connected to a closed circuit, and the tin suction wires have two states: winding short circuit and straightening the path; In the winding short circuit state, the tin suction wire is twisted so that multiple strands of wires are woven into a strand shape, and the circuit is in a short circuit heating state; In the straightened path state, the tin suction wire is twisted until multiple strands of wires do not contact each other, and the circuit is in a path state; A robotic arm (7) arranged above the elastic conveyor belt (5), a pressing plate (8) is installed at the end of the robotic arm (7), and the robotic arm (7) can control the pressing plate (8) to move and adjust in the vertical and horizontal directions.

2. The waste non-ferrous metal recycling and treatment equipment according to claim 1, characterized in that: Sliding bars (9) are slidably installed on the inner walls of the frame of the transfer frame (3) near both sides, and tension springs (10) are connected between the opposite surfaces of the two sliding bars (9) and the inner wall of the frame of the transfer frame (3). The tin suction component further includes two cross bar strips (13), and the two cross bar strips (13) are respectively rotatably installed on the opposite surfaces of the two sliding bars (9). The tin suction wire is composed of multiple strands of parallel copper wires (14), and multiple strands of the copper wires (14) are connected between the two cross bar strips (13). The positive electrode wires (14a) and negative electrode wires (14a) located at the two side edge positions are respectively connected to the positive and negative electrodes of the circuit to form a current path; The waste non-ferrous metal recycling and processing equipment further includes a driving part for driving the two cross bar strips (13) to rotate in opposite directions.

3. The waste non-ferrous metal recycling and treatment equipment according to claim 2, wherein: The tin suction component further includes a spline tube (12) and a spline shaft (11) that are inserted into each other. One end of the spline tube (12) is rotatably installed on the inner wall of the sliding bar (9), the spline shaft (11) is rotatably installed in a through hole opened inside the sliding bar (9), and the cross bar strip (13) is fixed to the end of the spline shaft (11) passing through the sliding bar (9). Transmission wheels (15) are fixed on the outer walls of the spline shafts (11) on the same side, and the transmission wheels (15) are connected by a transmission belt.

4. The waste non-ferrous metal recycling and treatment equipment according to claim 3, wherein: The waste non-ferrous metal recycling and processing equipment further includes a reaction tank (1) located below the elastic conveyor belt (5). Rotating frames (2) that can intermittently rotate are installed on both sides of the reaction tank (1) through brackets, and the two rotating frames (2) are arranged horizontally and staggeredly; The driving part includes two fixed shafts (4) rotatably installed through the side walls of the transfer frame (3), and the two fixed shafts (4) are centrosymmetrically arranged about the center of the transfer frame (3). The two fixed shafts (4) are respectively fixed at the ends of the corresponding arms of the two rotating frames (2). One end of each of the two fixed shafts (4) extending into the transfer frame (3) is fixed with an incomplete bevel gear (16). A driven bevel gear (17) is fixed to the outer wall of the spline tube (12) near the incomplete bevel gear (16). The incomplete bevel gear (16) and the driven bevel gear (17) can be intermittently engaged, and the rotation directions of the driven bevel gears (17) on both sides are opposite. A torsion spring for resetting and rotating the spline tube (12) is sleeved on the outer wall of the spline tube (12).

5. The waste non-ferrous metal recycling and treatment equipment according to claim 4, characterized in that: The reaction tank (1) is filled with a solvent, and the solvent can clean the tin liquid adsorbed on the surface of the copper wire (14).

6. The waste non-ferrous metal recycling and treatment equipment according to claim 5, characterized in that: A rack plate (18) is installed at the inner bottom of the reaction tank (1). A separation comb (19) is fixed to the top of the rack plate (18), and the separation comb (19) corresponds to the gap between the separation comb (19) and the copper wire (14).

7. The waste non-ferrous metal recycling and treatment equipment according to claim 2, characterized in that: The circuit path formed by the copper wire (14) has the functions of timed power-on and power-off, and both the power-on and power-off intervals are carried out when the positive wire (14a) and the negative wire (14a) are in a separated state.

8. The waste non-ferrous metal recycling and treatment equipment according to any one of claims 1-7, characterized in that: After the pressing plate (8) stops descending, the planes where the pins, tin soldering points and solder-absorbing wires at the bottom of the waste circuit board (6) are staggered, and there is still a gap between the plate body and the solder-absorbing wire.

9. The waste non-ferrous metal recycling and treatment equipment according to any one of claims 1-7, characterized in that: The waste non-ferrous metal recycling and processing equipment further includes a coating part. The coating part is arranged below the elastic conveyor belt (5) and is located upstream of the reaction tank (1) along the conveying direction of the elastic conveyor belt (5). The coating part coats pine oil on the tin soldering points on the bottom surface of the waste circuit board (6) by spraying or brushing.

10. The waste non-ferrous metal recycling and treatment equipment according to claim 1, characterized in that: The waste non-ferrous metal recycling and processing equipment further includes a blowing part. The blowing part is arranged on the side wall of the reaction tank (1), and the blowing direction corresponds to the position of the transfer frame (3).

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