Soldering flux coating mechanism for segmented special-shaped welding strip

Abstract

The utility model provides a soldering flux coating mechanism for a segmented special-shaped welding strip, which comprises a conveying component, a coating component and a control component, and is characterized in that the conveying component is used for conveying the segmented special-shaped welding strip; the soldering flux groove is used for containing soldering flux; and the coating guide wheel assembly and the conveying assembly are arranged in a spaced mode, the coating guide wheel assembly is arranged in the scaling powder groove, the coating guide wheel assembly comprises two coating guide wheels matched with each other, and a segmented special-shaped welding strip passes through the space between the two coating guide wheels. According to the embodiment of the utility model, a soaking type coating mode is adopted, so that the surface of the segmented special-shaped welding strip can be coated in all directions, and the problem of poor local coating in the traditional process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic welding strip production, and in particular relates to a flux coating mechanism for segmented special-shaped welding strips. Background Art

[0002] In the production process of photovoltaic welding strips, the copper strip needs to be coated with flux for surface cleaning before tinning. The traditional method is to drip flux on wool felt, and the copper strip is stained with flux through the wet wool felt. This method is simple and efficient, and can avoid the strip from bringing out too much flux. It has always been the main coating process for producing photovoltaic welding strips. However, after the emergence of segmented special-shaped welding strips, this process has encountered difficulties. Due to the special shape of the segmented welding strips, the following situations will occur when the traditional wool felt is used to wipe and coat the flux: 1. Due to the different heights of different sections of the segmented welding strips and the high diameter of the circular segment, it is easy to partially support the felt, so there is a probability that it cannot contact the plane of the flat segment, resulting in partial coating failure; 2. Due to the sudden change in shape of the transition section, there is a high probability that the flux cannot be coated. After tinning, the transition section frequently leaks copper, affecting product quality; 3. The convex and concave transition section of the roller is prone to copper powder and grease accumulation on the surface of the copper strip. When the accumulation reaches a certain level, it is possible to stick to the transition position of the copper strip, causing surface contamination of the copper strip and affecting the subsequent tinning quality. Therefore, the existing flux coating method has great hidden dangers for the segmented solder strips. Summary of the invention

[0003] In order to solve at least one technical problem in the prior art, the embodiment of the utility model provides a flux coating mechanism for segmented special-shaped solder strips to improve the flux coating quality of segmented special-shaped solder strips. To achieve the above technical objectives, the technical solution adopted by the embodiment of the utility model is:

[0004] The utility model embodiment provides a flux coating mechanism for segmented special-shaped solder strips, comprising:

[0005] A conveying component, used for conveying segmented special-shaped welding strips;

[0006] A flux tank for setting flux;

[0007] The coating guide wheel assembly is spaced apart from the conveying assembly and is arranged in the flux tank. The coating guide wheel assembly includes two coating guide wheels that cooperate with each other, and the segmented special-shaped welding strip passes between the two coating guide wheels.

[0008] Furthermore, the transmission component comprises:

[0009] An input guide wheel assembly is disposed upstream of the coating guide wheel assembly and has a first gap therebetween;

[0010] The output guide wheel assembly is arranged downstream of the coating guide wheel assembly and has a second gap between the output guide wheel assembly and the coating guide wheel assembly.

[0011] Further, the input guide wheel assembly includes two input guide wheels that cooperate with each other, and a first groove is provided on any of the input guide wheels;

[0012] And / or, the output guide wheel assembly includes two output guide wheels that cooperate with each other, and a first groove is provided on any of the output guide wheels;

[0013] And / or, a first groove is provided on any of the coating guide wheels.

[0014] Further, the first interval and / or the second interval is N+0.5 times the length period of the segmented special-shaped welding strip, where N is a positive integer.

[0015] Furthermore, it also includes a powder blowing device, which is arranged upstream of the input guide wheel assembly;

[0016] The powder blowing device comprises a powder blowing chamber, and through holes are provided at both ends of the powder blowing chamber, and the through holes are used for the segmented special-shaped welding strips to pass through;

[0017] A blowing port is arranged on the side of the powder blowing chamber, and a working end of the blowing port can face the segmented special-shaped welding strip.

[0018] Furthermore, it also includes an air knife and a guide pipe, which are arranged between the coating guide wheel assembly and the output guide wheel assembly, and the guide pipe is arranged on a side of the air knife close to the coating guide wheel assembly.

[0019] Furthermore, it also includes a support assembly, wherein the support assembly includes a first unit and a second unit.

[0020] The first unit and the second unit are arranged in sequence along the length direction, a connecting plate is provided between the first unit and the second unit, and a second groove is provided on the connecting plate;

[0021] The powder blowing device and / or the input guide wheel assembly are arranged in the first unit;

[0022] The flux tank, the coating guide wheel assembly, the output guide wheel assembly, the air knife and the guide pipe are arranged in the second unit.

[0023] Further, the first unit includes a first side plate, the input guide wheel assembly is rotatably connected to the first side plate, and the powder blowing device is fixedly connected to the first side plate and is arranged on a side of the input guide wheel assembly away from the second unit.

[0024] Further, the second unit comprises: a bottom plate, a second side plate, and an upper cover plate, wherein the bottom plate, the second side plate, and the upper cover plate constitute a receiving cavity, the bottom of the receiving cavity is the soldering flux tank, and is provided with the coating guide wheel assembly;

[0025] The output guide wheel assembly is rotatably connected to the second side plate and is disposed above the upper cover plate;

[0026] The wind knife and the guide pipe are fixedly arranged on the upper cover plate, and the guide pipe extends in the height direction;

[0027] The upper cover plate is also provided with an air outlet.

[0028] Furthermore, a groove body is provided on a side of the second unit facing away from the first unit, and the groove body is communicated with the accommodating cavity.

[0029] The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

[0030] 1) The embodiment of the utility model adopts an immersion coating method, which can be coated on the surface of the segmented special-shaped welding strip in all directions, eliminating the problem of poor local coating in the traditional process.

[0031] 2) The embodiment of the utility model removes copper powder and excess water on the surface of the copper strip through a powder blowing device, thereby preventing the copper powder from contaminating the soldering flux and extending the service life of the soldering flux;

[0032] 3) In the embodiment of the utility model, the coating guide wheel, the input guide wheel, and the output guide wheel are all provided with a first groove to prevent the segmented special-shaped welding strip from deflecting and tipping over during operation, and to ensure that the segmented special-shaped welding strip will not tip over when the soldering flux is dipped, thereby improving the effect of the soldering flux coating;

[0033] 4) The embodiment of the utility model can strictly control the amount of flux carried out by designing an air knife and a guide tube above the flux tank, reduce flux loss and the phenomenon of flux frying in the tin furnace, and reduce the generation of tin slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a top view of a flux coating mechanism for segmented special-shaped solder strips in an embodiment of the utility model.

[0035] Figure 2 The figure is a schematic diagram of the internal structure of a flux coating mechanism for segmented special-shaped solder strips in an embodiment of the utility model.

[0036] Figure 3 It is a schematic diagram of the structure of the first groove in the embodiment of the utility model. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0038] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0041] The embodiment of the present utility model provides a flux coating mechanism for segmented special-shaped solder tapes, including:

[0042] A conveying component 1 for conveying segmented special-shaped solder tapes;

[0043] A flux tank 2 for setting flux;

[0044] A coating guide wheel assembly 3, which is arranged at an interval from the conveying component 1 and is arranged in the flux tank 2. The coating guide wheel assembly 3 includes two mutually cooperating coating guide wheels, and the segmented special-shaped solder tape passes between the two coating guide wheels.

[0045] In a specific embodiment, such as Figure 1 and Figure 2As shown, the conveying component 1 ensures the operation of the segmented profiled soldering tape. Since the coating guide wheel component 3 is arranged in the flux tank 2, when the segmented profiled soldering tape passes through the coating guide wheel component 3, it can be immersed in the flux in the flux tank 2, and thus flux can be coated on the surface of the segmented profiled soldering tape. This structure is simple and can ensure that sufficient flux is coated on all parts of the segmented profiled soldering tape.

[0046] Further, the conveying component 1 includes:

[0047] An input guide wheel component 11, which is arranged upstream of the coating guide wheel component 3 and has a first interval with the coating guide wheel component 3;

[0048] An output guide wheel component 12, which is arranged downstream of the coating guide wheel component 3 and has a second interval with the coating guide wheel component 3.

[0049] As Figure 2 shown, the conveying component 1 has a guiding function. The segmented profiled soldering tape passes through the input guide wheel component 11, passes through the coating guide wheel component 3, and then is output through the output guide wheel component 12. This structure can ensure that the segmented profiled soldering tape runs smoothly and evenly in the flux tank 2, and thus ensure the coating effect of the flux.

[0050] Further, the input guide wheel component 11 includes two mutually cooperating input guide wheels, and a first groove 31 is provided on any one of the input guide wheels;

[0051] And / or, the output guide wheel component 12 includes two mutually cooperating output guide wheels, and a first groove 31 is provided on any one of the output guide wheels;

[0052] And / or, a first groove 31 is provided on any one of the coating guide wheels;

[0053] In a specific embodiment, as Figure 3 shown, the first groove 31 is provided on the input guide wheel, the output guide wheel, and the coating guide wheel. The first groove 31 can define the position of the segmented profiled soldering tape and prevent the segmented profiled soldering tape from shifting or flipping during movement.

[0054] Further, the first interval and / or the second interval is N + 0.5 times the length period of the segmented profiled solder strip, where N is a positive integer. It should be noted that the segmented profiled solder strip in this application includes multiple length periods, and any length period includes a circular segment and a flat segment. In one length period, the lengths of the circular segment and the flat segment are the same. Therefore, setting the first interval to N + 0.5 times the length period can ensure that the segmented profiled solder strip will always be in the flat segment on one of the input guide wheel assembly 11 and the coating guide wheel assembly 3. Similarly, setting the second interval to N + 0.5 times the length period can ensure that the segmented profiled solder strip will always be in the flat segment on one of the coating guide wheel assembly 3 and the output guide wheel assembly 12. Also, since the first groove 31 is provided on each of the input guide wheel assembly 11, the coating guide wheel assembly 3, and the output guide wheel assembly 12, this structure can prevent the segmented profiled solder strip from tipping over when passing through the flux tank 2, keeping the segmented profiled solder strip in a stable running state and thus ensuring the coating quality of the segmented profiled solder strip.

[0055] Further, it further includes a powder blowing device 4, which is arranged upstream of the input guide wheel assembly 11;

[0056] The powder blowing device 4 includes a powder blowing chamber 41, and through holes are provided at both ends of the powder blowing chamber 41 for the segmented profiled solder strip to pass through;

[0057] An air blowing port 42 is provided on the side of the powder blowing chamber 41, and the working end of the air blowing port 42 can face the segmented profiled solder strip.

[0058] Before the segmented profiled solder strip is coated with flux, it is necessary to clean the impurities on its surface, and the segmented profiled solder strip comes from the cooling tank and there will also be excess moisture on its surface. Therefore, designing the powder blowing device 4 upstream of the input guide wheel assembly 11 can remove the copper powder and excess moisture on the surface of the segmented profiled solder strip, ensuring that the surface of the segmented profiled solder strip is smooth when coated with flux and extending the service life of the flux.

[0059] As Figure 2 shown, through holes are provided at both the left end and the right end of the powder blowing chamber 41. During operation, when the segmented profiled solder strip passes through the powder blowing chamber 41 through the through holes, compressed air is input into the powder blowing chamber 41 through the air blowing port 42, and thus the copper powder impurities and moisture on the surface of the segmented profiled solder strip can be removed. The powder blowing chamber 41 is convenient for collecting the blown copper powder impurities and moisture and is easy to replace.

[0060] Further, it further includes an air knife 5 and a diversion pipe 6, which are arranged between the coating guide wheel assembly 3 and the output guide wheel assembly 12, and the diversion pipe 6 is arranged on the side of the air knife 5 close to the coating guide wheel assembly 3.

[0061] As shown Figure 2 As shown, a large amount of flux will be carried out during the operation of the segmented profiled solder strip. The air knife 5 can blow off the excess flux and guide it to the flux tank 2 through the diversion pipe 6. The positions of the air knife 5 and the diversion pipe 6 and the shape of the diversion pipe 6 can be adjusted according to actual needs.

[0062] Furthermore, a support assembly is further included. The support assembly includes a first unit 71 and a second unit 72.

[0063] The first unit 71 and the second unit 72 are arranged in sequence along the length direction A. A connecting plate 73 is between the first unit 71 and the second unit 72, and a second groove 731 is provided on the connecting plate 73.

[0064] The powder blowing device 4 and / or the input guide wheel assembly 11 are arranged in the first unit 71.

[0065] The flux tank 2, the coating guide wheel assembly 3, the output guide wheel assembly 12, the air knife 5 and the diversion pipe 6 are arranged in the second unit 72.

[0066] As shown Figure 2 As shown, the second groove 731 on the connecting plate 73 can define the position of the segmented profiled solder strip, avoid the deviation of the segmented profiled solder strip during high-speed operation, and further improve the running stability of the segmented profiled solder strip. During actual production, the equipment before coating the segmented profiled solder strip is arranged in the first unit 71, and the equipment during and after coating is arranged in the second unit 72, which is beneficial to later maintenance and is convenient to find the orientation of problems when quality problems are found.

[0067] The installation methods of the powder blowing device 4 and the input guide wheel assembly 11 in the first unit 71 are not limited. In a specific embodiment, the first unit 71 includes a first side plate 711. The input guide wheel assembly 11 is rotatably connected to the first side plate 711. The powder blowing device 4 is fixedly connected to the first side plate 711 and is arranged on the side of the input guide wheel assembly 11 away from the second unit 72. This structural design is reasonable, ensuring the smooth operation of the segmented profiled solder strip and being beneficial to later maintenance.

[0068] The installation methods of the flux tank 2, the coating guide wheel assembly 3, the output guide wheel assembly 12, the air knife and the diversion pipe in the second unit 72 are also not limited. In a specific embodiment, the second unit 72 includes: a bottom plate 721, a second side plate 722, and an upper cover plate 723. The bottom plate 721, the second side plate 722, and the upper cover plate 723 form a receiving cavity. The bottom of the receiving cavity is the flux tank 2 and is provided with the coating guide wheel assembly 3.

[0069] The output guide wheel assembly 12 is rotatably connected to the second side plate 722 and is disposed above the upper cover plate 723;

[0070] The air knife 5 and the diversion pipe are fixedly arranged on the upper cover plate 723, and the diversion pipe 6 extends along the height direction B;

[0071] An air outlet 724 is further provided on the upper cover plate 723.

[0072] As Figure 2 shown, the air knife 5 blows air onto the segmented special-shaped solder tape, and the air outlet 724 on the upper cover plate 723 ensures the circulation of gas. Disposing the output guide wheel assembly 12 above the upper cover plate 723, and fixing the air knife 5 and the diversion pipe 6 on the upper cover plate 723 is beneficial to directly recover the redundant flux blown off under the action of gravity into the accommodating cavity.

[0073] During operation, the segmented special-shaped solder tape enters the second unit 72 from the powder blowing device 4 and the input guide wheel assembly 11 in the first unit 71 on the left side, and first passes through the coating guide wheel assembly 3 in the flux at the bottom of the accommodating cavity, extends upward and sequentially passes through the air knife 5, the diversion pipe 6 and the output guide wheel assembly 12. The air knife 5 and the diversion pipe 6 blow the redundant flux on the segmented special-shaped solder tape onto the bottom of the accommodating cavity, with a simple structure and easy implementation.

[0074] The manner in which the air knife 5 and the diversion pipe are fixedly connected to the upper cover plate 723 is not limited. Further, a third side plate is further provided on the upper cover plate 723. The air knife 5 further includes a mounting member, and the air knife 5 is fixedly connected to the third side plate through the mounting member. The upper cover plate 723 further includes a through hole, and the diversion pipe 6 passes through the through hole and is fixedly connected to the upper cover plate 723.

[0075] Further, a groove body 725 is further provided on a side of the second unit 72 facing away from the first unit 71, and the groove body 725 communicates with the accommodating cavity.

[0076] In a specific embodiment, as Figure 2 shown, there is a gap between the side plate on the right side of the second unit 72 and the bottom plate 721;

[0077] The right side of the bottom plate 721 extends toward the right side and then bends upward, and forms the groove body 725 together with the side plate on the right side of the second unit 72.

[0078] As shown in the figure, since the groove body 725 communicates with the accommodating cavity, the flux can be added into the accommodating cavity through the groove body 725. Also, the quality of the flux in the second unit 72 can be judged by the texture, color, etc. of the flux in the groove body 725, which is beneficial to timely replace the flux and ensure the coating quality of the segmented special-shaped solder tape.

[0079] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A flux coating mechanism for segmented profiled soldering tapes, characterized in that, Comprising: A conveying component (1) for conveying segmented special-shaped soldering tapes; A flux tank (2) for setting flux; A coating idler assembly (3) which is arranged at an interval from the conveying component (1) and is arranged in the flux tank (2). The coating idler assembly (3) includes two cooperating coating idlers, and the segmented special-shaped soldering tape passes between the two coating idlers.

2. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 1, wherein: The conveying component (1) includes: An input idler assembly (11) which is arranged upstream of the coating idler assembly (3) and has a first interval from the coating idler assembly (3); An output idler assembly (12) which is arranged downstream of the coating idler assembly (3) and has a second interval from the coating idler assembly (3).

3. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 2, wherein: The input idler assembly (11) includes two cooperating input idlers, and a first groove (31) is provided on any one of the input idlers; And / or, the output idler assembly (12) includes two cooperating output idlers, and a first groove (31) is provided on any one of the output idlers; And / or, a first groove (31) is provided on any one of the coating idlers.

4. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 2, wherein: The first interval and / or the second interval is N + 0.5 times the length period of the segmented special-shaped soldering tape, and N is a positive integer.

5. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 2, wherein: It further includes a powder blowing device (4) which is arranged upstream of the input idler assembly (11); The powder blowing device (4) includes a powder blowing chamber (41), and through holes are provided at both ends of the powder blowing chamber (41), and the segmented special-shaped soldering tape passes through the through holes; An air blowing port (42) is provided on the side of the powder blowing chamber (41), and the working end of the air blowing port (42) can face the segmented special-shaped soldering tape.

6. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 5, wherein: It further includes an air knife (5) and a diversion pipe (6) which are arranged between the coating idler assembly (3) and the output idler assembly (12), and the diversion pipe (6) is arranged on the side of the air knife (5) close to the coating idler assembly (3).

7. The flux coating mechanism for segmented special-shaped soldering tapes according to claim 6, wherein: It further includes a support assembly, and the support assembly includes a first unit (71) and a second unit (72), The first unit (71) and the second unit (72) are arranged in sequence along the length direction (A), a connecting plate (73) is between the first unit (71) and the second unit (72), and a second groove (731) is provided on the connecting plate (73); The powder blowing device (4) and / or the input idler assembly (11) is arranged in the first unit (71); The flux tank (2), the coating guide wheel assembly (3), the output guide wheel assembly (12), the air knife (5) and the guide pipe (6) are arranged in the second unit (72).

8. The flux coating mechanism for segmented special-shaped solder strips according to claim 7, characterized in that: The first unit (71) comprises a first side plate (711), the input guide wheel assembly (11) is rotatably connected to the first side plate (711), and the powder blowing device (4) is fixedly connected to the first side plate (711) and is arranged on a side of the input guide wheel assembly (11) facing away from the second unit (72).

9. The flux coating mechanism for segmented special-shaped solder strips according to claim 7, characterized in that: The second unit (72) comprises: a bottom plate (721), a second side plate (722), and an upper cover plate (723); the bottom plate (721), the second side plate (722), and the upper cover plate (723) constitute a receiving cavity; the bottom of the receiving cavity is the soldering flux tank (2), and is provided with the coating guide wheel assembly (3); The output guide wheel assembly (12) is rotatably connected to the second side plate (722) and is disposed above the upper cover plate (723); The wind knife (5) and the flow guide pipe (6) are fixedly arranged on the upper cover plate (723), and the flow guide pipe (6) extends along the height direction (B); The upper cover plate (723) is also provided with an air outlet (724).

10. The flux coating mechanism for segmented special-shaped solder strips according to claim 9, characterized in that: A groove body (725) is further provided on a side of the second unit (72) facing away from the first unit (71), and the groove body (725) is communicated with the accommodating cavity.

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