Tin dross separation system and welding equipment

Abstract

This utility model relates to the field of electronic welding technology, providing a tin dross separation system and welding equipment. The tin dross separation system includes a tin furnace, a tin dross collection box, a separation body, and a separation mechanism. The tin furnace has a solder space inside; the tin dross collection box also has a tin dross space inside, and the tin dross space and solder space are independent of each other; the separation body has a receiving cavity inside, the projection of which at least partially overlaps with the solder space on its longitudinal section; the separation body is provided with an inlet, a tin dross outlet, and a solder outlet communicating with the receiving cavity, the tin dross outlet communicating with the tin dross space, and the solder outlet communicating with the solder space; the separation mechanism is used to drive the mixture in the receiving cavity to centrifugally rotate to achieve tin dross separation; during the tin dross separation process, the separation body is at least partially below the solder liquid surface in the solder space. The tin furnace can provide sufficient heat to the separation body, allowing the mixture to fully liquefy and ensuring smooth tin dross separation.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a tin dross separation device, a tin dross separation system, and welding equipment. Background Technology

[0002] With the rapid development of the electronics industry, the production of household appliances such as mobile phones and computers is increasing daily. The manufacturing process of these electronic products requires a large number of circuit boards and cards for wave soldering. However, this soldering process inevitably generates a large amount of waste solder dross. Waste solder dross is a resource of significant value; with proper processing, it can be reused as solder. Therefore, the recycling and disposal of waste solder dross has become an urgent problem to be solved in the electronics industry. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a tin dross separation system, applicable to large-scale tin dross processing, thus improving the utilization rate of tin dross.

[0004] This utility model also proposes a welding device.

[0005] The tin dross separation system according to a first aspect embodiment of the present invention includes:

[0006] A solder furnace, with a space inside for solder;

[0007] A solder dross collection box has a solder dross space inside, and the solder dross space and the brazing filler space are independent of each other;

[0008] The separation body has a receiving cavity inside, and the projection of the receiving cavity on the longitudinal section at least partially overlaps with that of the solder space. The separation body is provided with an inlet, a slag outlet and a solder outlet that communicate with the receiving cavity. The slag outlet communicates with the slag space and the solder outlet communicates with the solder space.

[0009] The separation mechanism is used to drive the mixture in the receiving cavity to rotate centrifugally to achieve the separation of tin slag.

[0010] According to the tin dross separation system of this utility model embodiment, through the centrifugal rotation of the separation mechanism and the heat supply of the tin furnace, the tin dross separation system can efficiently separate the solder and tin dross in waste solder dross. During the tin dross separation process, the separation body is at least partially below the surface of the solder in the tin furnace. The tin furnace can provide sufficient heat to the separation body, allowing the mixture to be fully liquefied, ensuring smooth tin dross separation. The centrifugal rotation of the separation mechanism causes the solder and tin dross of different densities to leave the receiving cavity from the tin dross outlet and the solder outlet respectively under the action of centrifugal force.

[0011] According to one embodiment of the present invention, a fixed support frame is also included, which is used to fix the separation body to the inner wall of the tin furnace.

[0012] According to one embodiment of the present invention, the fixed support frame is a U-shaped frame, which is arranged around the outer contour of the separate body, and the end of the U-shaped frame is fixed to the inner wall of the tin furnace.

[0013] According to one embodiment of the present invention, during the tin dross separation process, the solder outlet is located at the bottom of the separation body; there are several tin dross outlets located on the side wall of the separation body.

[0014] According to one embodiment of the present invention, the separation mechanism includes a stirring and separating component, a transmission component, and a drive motor. The stirring and separating component is at least partially disposed in the receiving cavity. The output shaft of the drive motor drives the stirring and separating component to rotate through the transmission component. The drive motor is disposed on the outside of the tin furnace.

[0015] According to one embodiment of the present invention, the separation mechanism further includes a housing, which covers the transmission component and the drive motor.

[0016] According to one embodiment of the present invention, a lifting device is also included. The lifting device includes a fixed base and a movable component. The fixed base is fixedly installed on the solder pot, and the movable component is adapted to slide along the height direction of the solder pot and is fixedly connected to the fixed base. The separation body is connected to the movable component.

[0017] According to one embodiment of the present invention, a grinding mechanism is further included, which is installed in the tin furnace. The grinding mechanism includes a grinding component and a feeding barrel. The grinding component is used to crush the mixture entering the feeding barrel. The outlet of the feeding barrel is connected to the inlet.

[0018] According to one embodiment of the present invention, the feed hopper is disposed above the receiving cavity, and the grinding component is connected to the separation mechanism.

[0019] The welding equipment according to the second aspect of the present invention includes the above-described tin dross separation system.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the tin dross separation system provided in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the tin dross separation system provided in another embodiment of the present invention.

[0024] Figure label:

[0025] 100. Separation body; 101. Receiving cavity; 102. Inlet; 103. Solder dross outlet; 104. Solder filler metal outlet;

[0026] 200. Grinding mechanism; 210. Grinding component; 220. Feed hopper;

[0027] 300. Separation mechanism; 310. Stirring and separating component; 311. Rotating shaft; 312. Spiral blade; 320. Transmission component; 330. Drive motor;

[0028] 400. Solder furnace; 401. Solder space;

[0029] 500. Solder dross collection box; 501. Solder dross space;

[0030] 600. Fixed support frame;

[0031] 700, outer casing;

[0032] 800. Lifting device; 810. Fixed base; 820. Moving parts. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0036] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] According to the tin dross separation system of this utility model embodiment, please refer to... Figure 1The tin dross separation system includes a tin furnace 400, a tin dross collection box 500, a separation body 100, and a separation mechanism 300. The tin furnace 400 has a solder space 401 inside; the tin dross collection box 500 also has a tin dross space 501 inside, and the tin dross space 501 and the solder space 401 are independent of each other; the separation body 100 has a receiving cavity 101 inside, and the projection of the receiving cavity 101 onto the solder space 401 in the longitudinal section at least partially overlaps with it. The separation body 100 is provided with an inlet 102, a tin dross outlet 103, and a solder outlet 104 communicating with the receiving cavity 101. The tin dross outlet 103 communicates with the tin dross space 501, and the solder outlet 104 communicates with the solder space 401; the separation mechanism 300 is used to drive the mixture in the receiving cavity 101 to centrifugally rotate to achieve tin dross separation.

[0039] During the tin dross separation process, the separation body 100 is at least partially located below the surface of the solder in the solder space 401. Since the projections of the receiving cavity 101 and the solder space 401 on the longitudinal section at least partially overlap, the receiving cavity 101, located in the solder space 401, can utilize the temperature of the liquid solder inside the tin furnace 400 to provide the receiving cavity 101 with the temperature of the molten mixture through heat conduction, which is beneficial for the subsequent separation of tin dross and solder. The receiving cavity 101 is heated by the solder in the solder space 401, and the separated solder enters the solder space 401 through the solder outlet, while the separated tin dross enters the tin dross space 501 through the tin dross outlet 103.

[0040] According to the tin dross separation system of this utility model embodiment, through the centrifugal rotation of the separation mechanism 300 and the heat supply of the tin furnace 400, the tin dross separation system can efficiently separate the solder and tin dross in waste solder dross. During the tin dross separation process, the separation body 100 is at least partially below the surface of the solder in the tin furnace 400. The tin furnace 400 can provide sufficient heat to the separation body 100, allowing the mixture to be fully liquefied, ensuring smooth tin dross separation. The centrifugal rotation of the separation mechanism 300 causes the solder and tin dross of different densities to leave the receiving cavity 101 from the tin dross outlet 103 and the solder outlet 104 respectively under the action of centrifugal force.

[0041] It is understood that a solder space 401 is formed inside the solder furnace 400, where the solder stored in the solder space 401 can be used as a soldering material. The solder furnace 400 can provide heat energy to heat the mixture in the receiving cavity 101, which can promote the solder dross separation process. It should be noted that the solder dross separation process here can be understood as the separation of reusable solder and non-reusable solder dross, which enter different storage spaces (solder solder dross space 501 and solder dross space 401) from different outlets (solder solder dross outlet 103 and solder outlet 104).

[0042] It is understandable that the tin dross space 501 of the tin dross collection box 500 and the solder space 401 of the tin furnace 400 are independent of each other. The separated solder enters the solder space 401 for collection through the solder outlet 104, while the separated tin dross enters the tin dross space 501 through the tin dross outlet 103. This facilitates the recycling of the solder after tin dross separation by the operators, as well as the treatment of the separated tin dross.

[0043] Understandably, the separation mechanism 300 can drive the mixture in the receiving cavity 101 to rotate, so that the tin dross and the solder with different densities are separated. The tin dross with lower density floats above the solder and enters the tin dross space 501 from the tin dross outlet 103 under the action of centrifugal force.

[0044] According to one embodiment of the present invention, the tin dross separation system further includes a fixed support frame 600, which is used to fix the separation body 100 to the inner wall of the tin furnace 400.

[0045] Understandably, the fixed support frame 600 can securely fix the separation body 100 to the inner wall of the tin furnace 400, preventing it from moving or shaking during operation and ensuring the stability and reliability of the separation process.

[0046] Understandably, the fixed support frame 600 only needs to fix the separate body 100 to the inner wall of the tin furnace 400. The fixed support frame 600 can be connected to the inner wall of the tin furnace 400, or to the outer surface of the tin furnace 400, or hung on the edge of the tin furnace 400.

[0047] According to one embodiment of the present invention, the fixed support frame 600 is a U-shaped frame, which is arranged around the outer contour of the separate body 100, and the end of the U-shaped frame is fixed to the inner wall of the tin furnace 400.

[0048] Understandably, the U-shaped frame design allows it to completely surround the outer contour of the separation body 100, providing comprehensive support, effectively enhancing the stability of the fixed support frame 600, and ensuring a firm connection between the support frame and the solder pot 400.

[0049] Specifically, the ends of the U-shaped frame can be fixed to the tin furnace 400 with screws.

[0050] According to one embodiment of the present invention, during the tin dross separation process, the receiving cavity 101 is located in the solder space 401, the solder outlet 104 is located at the bottom of the separation body 100, and there are several tin dross outlets located on the side wall of the separation body.

[0051] Understandably, the solder discharge port 104 is located at the bottom of the separation body 100 to discharge the processed solder from the separation body 100, facilitating subsequent processing or recycling. The dross discharge port 103, located on the side wall, helps to discharge dross more effectively, thus optimizing the separation effect. Separating the solder and dross discharge ports 103 at the bottom and side wall respectively helps reduce the possibility of them mixing, maintaining the purity of the solder and dross.

[0052] According to one embodiment of the present invention, the separation mechanism 300 includes a stirring and separating component 310, a transmission component 320 and a drive motor 330. The stirring and separating component 310 is at least partially disposed in the receiving cavity 101. The output shaft of the drive motor 330 drives the stirring and separating component 310 to rotate through the transmission component 320. The drive motor 330 is disposed on the outside of the tin furnace 400.

[0053] It is understood that the stirring and separating component 310 is a component for stirring and separating slag during the tin slag separation process, and is at least partially disposed within the receiving cavity 101 to ensure that the mixture can be fully stirred and separated during the separation process.

[0054] The drive motor 330 is located outside the tin furnace 400, avoiding direct exposure of the motor to high temperatures and corrosive environments, thus extending the service life of the drive motor 330 and facilitating maintenance. At the same time, it reduces the overall height of the device, ensuring that new mixtures can be added to the separation unit 100, making it convenient to use.

[0055] According to one embodiment of the present invention, the stirring and separating component 310 includes a rotating shaft 311 and a helical blade 312. The helical blade 312 is wound around the rotating shaft 311, and the drive motor 330 is adapted to drive the rotating shaft 311 to rotate. It is understood that the helical blade 312 can effectively stir the mixture. By rotating the helical blade 312 through the rotating shaft 311, the mixture can achieve a more uniform distribution during stirring, which is beneficial for separating the target substance and improving the separation accuracy.

[0056] According to one embodiment of the present invention, the receiving cavity 101 is funnel-shaped, and the stirring and separating component 310 is disposed at the center of the receiving cavity 101. It is understood that the funnel-shaped design of the receiving cavity 101 can make the mixture more evenly distributed inside, and the stirring and separating component 310, located at the center of the receiving cavity 101, can ensure that the mixture is fully mixed and separated during the stirring process, thereby improving processing efficiency and accuracy.

[0057] In one embodiment, the separation mechanism 300 includes a rotating drum, a transmission component 320, and a drive motor 330. The rotating drum is at least partially located in the receiving cavity 101. The output shaft of the drive motor 330 drives the rotating drum to rotate via the transmission component 320. The rotating drum is vertically connected and can rotate relative to the receiving cavity 101. The mixture is placed in the rotating drum and is suitable for centrifugal separation of solder dross and solder as the rotating drum rotates. The separated solder enters the receiving cavity 101 through the outlet below the rotating drum and then leaves the separation body 100 through the solder outlet 104.

[0058] According to one embodiment of the present invention, the separation mechanism 300 further includes a housing 700, which covers the transmission component 320 and the drive motor 330. It is understood that the housing 700 and the housing 700 cover can effectively protect the transmission component 320 and the drive motor 330, prevent the intrusion of external substances such as dust and moisture, reduce the risk of damage to the mechanical structure, and improve safety in use.

[0059] According to one embodiment of the present invention, the tin dross separation system further includes a lifting device 800, please refer to... Figure 2 The lifting device 800 includes a fixed base 810 and a movable part 820. The fixed base 810 is fixedly installed on the tin furnace 400, and the movable part 820 is adapted to slide along the height direction of the tin furnace 400 and is fixedly connected to the fixed base 810. The separation body 100 is connected to the movable part 820.

[0060] Understandably, the design of the lifting device 800 allows for vertical height adjustment of the separation body 100, which in turn allows for height adjustment based on the molten metal level in the tin furnace 400, ensuring that during the tin dross separation process, the separation body 100 is at least partially below the molten metal level in the solder space 401.

[0061] It should be noted that as solder dross is continuously recycled, the solder level in the solder space 401 may rise. The height of the separation unit 100 can be adjusted using the lifting device 800 to prevent the solder level from exceeding the height of the receiving cavity 101, which would reduce separation efficiency. Simultaneously, if operators are using the solder in the solder space 401 during the recycling process, the solder level in the solder furnace 400 will continuously drop. The height of the separation unit 100 can be adjusted using the lifting device 800 to prevent the solder level from becoming too low, which would reduce the rate of heat conduction.

[0062] It should be noted that the sliding and fixed connection of the movable part 820 to the fixed base 810 can be achieved by existing lifting devices, without specific limitations. For example, the movable part 820 and the fixed base 810 can be slidably and fixedly connected by a lifting screw. When the lifting screw rotates in the forward direction, it causes the movable part 820 to rise relative to the fixed base 810. When the lifting screw rotates in the reverse direction, it causes the movable part 820 to fall relative to the fixed base 810.

[0063] In one embodiment, the tin dross separation system further includes an auxiliary heating device adapted to provide heat to the separation body 100.

[0064] When the solder level in the solder space 401 drops, an auxiliary heating device can provide heat to the separation body 100 to prevent insufficient heat inside the separation body 100 due to a low solder level, which would result in a slow liquefaction rate of the mixture.

[0065] The operation of the auxiliary heating device of this application is described below with reference to a specific embodiment:

[0066] When the separation body 100 is fixedly connected to the solder furnace 400, the solder liquid level in the solder space 401 has a preset minimum liquid level. When the actual liquid level is lower than the minimum liquid level, the auxiliary heating device is activated to provide auxiliary heating for the separation body 100.

[0067] It should be noted that in this embodiment, the separation body 100 is fixedly connected to the tin furnace 400, while the separation body 100 of this application can also be adjusted in height relative to the tin furnace 400 by the lifting device 800, and the auxiliary heating device can be used in conjunction with the lifting device 800.

[0068] According to one embodiment of the present invention, the tin dross separation system further includes a grinding mechanism 200, which is installed in the tin furnace 400. The grinding mechanism 200 includes a grinding component 210 and a feeding barrel 220. The grinding component 210 is used to crush the mixture entering the feeding barrel 220. The outlet of the feeding barrel 220 is connected to the inlet 102.

[0069] Understandably, the grinding component 210 is used to crush and grind the mixture entering the feed hopper 220 to facilitate subsequent separation, thereby improving separation efficiency and quality. The feed hopper 220 is used to contain the mixture and convey it to the grinding component 210 for processing. The outlet of the feed hopper 220 is connected to the inlet 102 to ensure that the ground material smoothly enters the next processing stage, guaranteeing the continuity and efficiency of the production process.

[0070] According to one embodiment of this utility model, the feed hopper 220 is disposed above the receiving cavity 101, and the grinding component 210 is connected to the separating mechanism 300. It is understood that the feed hopper 220 being disposed above the receiving cavity 101 allows the ground mixture to more easily enter the grinding component 210 under the influence of gravity, improving conveying efficiency. The grinding component 210 being connected to the separating mechanism 300 facilitates coordinated operation between the two components, improving processing efficiency and quality.

[0071] In one embodiment, the feed hopper 220 is funnel-shaped. Of course, the feed hopper 220 can be other shapes, and no specific limitation is made here.

[0072] In one embodiment, the rotation centers of the grinding component 210 and the stirring and separating component 310 are coaxial. Specifically, the grinding component 210 and the stirring and separating component 310 are integrally formed, or the grinding component 210 is fixedly connected to the stirring and separating component 310.

[0073] It is understandable that by having the grinding component 210 and the stirring and separating component 310 coaxial in their rotation centers, the grinding component 210 and the stirring and separating component 310 can be driven by the same drive motor 330, which can improve the compactness of the system.

[0074] The welding equipment according to the second aspect of the present invention includes the above-described tin dross separation system.

[0075] Understandably, tin dross separation systems can improve the utilization rate of tin dross in welding equipment, effectively recycle and treat waste generated during the welding process, and achieve resource reuse and environmental protection.

[0076] It should be noted that the welding equipment of this utility model, since it includes the aforementioned tin dross separation system, has all the technical effects of the aforementioned tin dross separation system, which will not be repeated here.

[0077] The welding work of the welding equipment and the recycling work of the tin dross separation system can be carried out simultaneously or asynchronously; no specific restrictions are imposed here.

[0078] In one embodiment, the welding equipment further includes a detection component for real-time detection of the solder level in the solder space 401. Understandably, the detection component allows the system to monitor the height and state of the solder level in real time. This enables timely detection of level changes, maintaining the solder level at an appropriate position to ensure welding quality and stability, while simultaneously ensuring the stable recovery of solder by the dross separation system. This ensures that the welding operation of the welding equipment and the recovery operation of the dross separation system can be carried out simultaneously.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A tin dross separation system characterized by, include: A solder furnace, with a space inside for solder; A solder dross collection box has a solder dross space inside, and the solder dross space and the brazing filler space are independent of each other; The separation body has a receiving cavity inside, and the projection of the receiving cavity on the longitudinal section at least partially overlaps with that of the solder space. The separation body is provided with an inlet, a slag outlet and a solder outlet that communicate with the receiving cavity. The slag outlet communicates with the slag space and the solder outlet communicates with the solder space. The separation mechanism is used to drive the mixture in the receiving cavity to rotate centrifugally to achieve the separation of tin slag.

2. The tin residue separation system of claim 1, wherein, It also includes a fixed support frame for fixing the separation body to the inner wall of the tin furnace.

3. The tin residue separation system of claim 2, wherein, The fixed support frame is a U-shaped frame, which is arranged around the outer contour of the separate body, and the end of the U-shaped frame is fixed to the inner wall of the tin furnace.

4. The tin dross separation system according to claim 1, characterized in that, The solder outlet is located at the bottom of the separation body; there are several tin dross outlets located on the side wall of the separation body.

5. The tin dross separation system according to claim 1, characterized in that, The separation mechanism includes a stirring and separating component, a transmission component, and a drive motor. The stirring and separating component is at least partially disposed in the receiving cavity. The output shaft of the drive motor drives the stirring and separating component to rotate through the transmission component. The drive motor is disposed on the outside of the tin furnace.

6. The tin dross separation system according to claim 5, characterized in that, The separation mechanism also includes a housing that covers the transmission component and the drive motor.

7. The tin dross separation system according to any one of claims 1 to 6, characterized in that, It also includes a lifting device, which includes a fixed base and a movable component. The fixed base is fixedly installed on the solder pot, and the movable component is adapted to slide along the height direction of the solder pot and is fixedly connected to the fixed base. The separation body is connected to the movable component.

8. The tin dross separation system according to any one of claims 1 to 6, characterized in that, It also includes a grinding mechanism installed in the tin furnace. The grinding mechanism includes a grinding component and a feeding barrel. The grinding component is used to crush the mixture entering the feeding barrel. The outlet of the feeding barrel is connected to the inlet.

9. The tin dross separation system according to claim 8, characterized in that, The feed hopper is positioned above the receiving cavity, and the grinding component is connected to the separation mechanism.

10. A welding device, characterized in that, The tin slag separation system includes any one of claims 1 to 9.

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