An automatic tin dross skimming device

Abstract

The application discloses an automatic tin ash scraping device and relates to the technical field of photovoltaic solder strip production equipment. The device comprises a scraping plate assembly, a distance adjusting assembly and a rotating module. The scraping plate assembly comprises a scraping sheet, which is used for scraping tin ash to one side of the inside of a furnace body to avoid a wire. The distance adjusting assembly is used for driving the scraping plate assembly to be close to or away from the furnace body. The rotating module is used for driving the scraping plate assembly to rotate around the rotating module. The center line of the rotating module is parallel to the driving direction of the distance adjusting assembly. The rotating module is slidably connected with the distance adjusting assembly. The scraping plate assembly is located on the side of the rotating module close to the furnace body, and the scraping plate assembly is connected with the rotating module. The rotating module is slidably connected with the distance adjusting assembly. The side of the rotating module away from the distance adjusting assembly is connected with the scraping plate assembly. The distance between the scraping plate assembly and tin ash is adjusted through the distance adjusting assembly. The scraping sheet is controlled to rotate through the rotating module. The tin ash in the scraping part is scraped to the accumulation part by the scraping sheet. The tin scraping path is automatically controlled, and the scraping range is increased.

Description

Technical Field

[0001] This application relates to the field of photovoltaic soldering equipment technology, specifically to an automatic solder scraping device. Background Technology

[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, is divided into busbars and interconnects, and is used to connect photovoltaic module cells. Currently, photovoltaic solder ribbon generally adopts a hot-dip tinning and air-blowing process. The solder ribbon exiting the tin outlet is continuously affected by wind, which causes rapid oxidation and the generation of tin ash, requiring timely cleaning.

[0003] Currently, existing solder ash removal devices include a cylinder connected to a solder furnace, with a scraper attached to one end. The cylinder controls the scraper to move axially along its shaft, thereby cleaning the oxide layer of the tin alloy solution. However, with the continuous improvement of photovoltaic solder ribbon production technology and the increase in equipment operating speed, the rate of solder ash and dross generation has also increased, requiring large-area cleaning of solder ash while maintaining a surface free of large areas of solder ash and dross accumulation. Existing solder ash removal devices, however, have a single scraping path and a relatively small scraping range. Furthermore, the cylinder is prone to damage due to the high temperature of the solder furnace and the presence of dross in the environment.

[0004] Therefore, there is an urgent need to design an automatic solder scraping device with a variable scraping path and a large scraping range. Summary of the Invention

[0005] This application provides an automatic solder ash scraping device, which can solve the problems of a single solder ash scraping path and a small scraping range.

[0006] To solve one or more of the above-mentioned technical problems, the technical solution adopted in this application is:

[0007] This application provides an automatic solder ash scraping device, comprising: a scraper assembly including a scraper blade for scraping solder ash to one side inside the furnace body to avoid wire; an adjustment assembly for driving the scraper assembly to move closer to or away from the furnace body; and a rotating module for driving the scraper assembly to rotate around the center line of the rotating module, the center line of the rotating module being parallel to the driving direction of the adjustment assembly; the rotating module is slidably connected to the adjustment assembly, the scraper assembly is located on the side of the rotating module away from the adjustment assembly, and the scraper assembly is connected to the rotating module.

[0008] Furthermore, there are at least two scrapers, and the two scrapers rotate in opposite directions.

[0009] Furthermore, the rotating module is connected to the adjusting assembly via a mounting bracket. The mounting bracket includes an intermediate plate connected to the adjusting assembly. A first mounting plate is connected to one side of the intermediate plate along the driving direction of the adjusting assembly. The first mounting plate is connected to a synchronous drive assembly for driving the two scrapers to rotate simultaneously.

[0010] Furthermore, the synchronous drive assembly includes a synchronous belt drive module. The first mounting plate has a first clearance hole and a second clearance hole extending through it in the direction pointing towards the furnace body. A drive rod passes through the first clearance hole, and a driven rod passes through the second clearance hole. A drive gear is sleeved on the outer wall of the drive rod, and a driven gear meshing with the drive gear is sleeved on the outer wall of the driven rod. The sides of both the drive rod and the driven rod closest to the furnace body are respectively connected to the corresponding scrapers.

[0011] Furthermore, a second mounting plate is provided between the first mounting plate and the scraper, the second mounting plate is connected to the intermediate plate, and the second mounting plate has a third clearance hole and a fourth clearance hole through it in the direction pointing towards the furnace body; the third clearance hole is for the drive rod to pass through, and the fourth clearance hole is for the driven rod to pass through.

[0012] Furthermore, both the active rod and the driven rod have auxiliary plates connected to their ends near the furnace body, and the auxiliary plates are set at a preset angle to the scraper.

[0013] Furthermore, both the driving gear and the driven gear are spur gears.

[0014] Furthermore, both the first and second clearance holes are equipped with stabilizing bearings, which are respectively sleeved on the outer walls of the driving rod and the driven rod.

[0015] Furthermore, the transmission ratio between the driving gear and the driven gear is 1:1.

[0016] Furthermore, the end of the scraper away from its own rotation center line is provided with a clearance groove for avoiding the wire.

[0017] According to the specific embodiments provided in this application, the following technical effects are disclosed:

[0018] A rotating module is slidably connected to the pitch adjustment component. A scraper component is connected to the side of the rotating module away from the pitch adjustment component. First, the distance between the scraper component and the tin ash in the furnace is adjusted by the pitch adjustment component. Then, the rotating module controls the scraper to rotate. The scraper scrapes the tin ash in the furnace to one side inside the furnace to avoid the wire, thereby realizing automatic control of the tin scraping path and increasing the scraping range.

[0019] Furthermore, by setting two scrapers rotating in opposite directions, the rotation range of a single scraper can be reduced and the tin ash can be scraped and rolled to one side inside the furnace at the same time, thus improving the efficiency of scraping tin ash.

[0020] Furthermore, by connecting auxiliary plates to the side walls of both the driving rod and the driven rod, the auxiliary plates and the scraper rotate simultaneously, compressing the volume of the tin ash while scraping and rolling it up. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. 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 showing the positional relationship between the automatic tin ash scraping device and the furnace body provided in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the automatic solder ash scraping device provided in the embodiments of this application;

[0024] Figure 3 An exploded view of the structure of the automatic solder ash scraping device provided in the embodiments of this application;

[0025] Figure 4 This is a schematic diagram of the mounting bracket provided in an embodiment of this application.

[0026] Reference numerals: 1. Adjustment assembly; 2. Rotation module; 21. Synchronous drive assembly; 211. Synchronous belt drive module; 2111. Synchronous belt group; 212. Rotation drive source; 3. Scraper assembly; 31. Scraper blade; 311. Clearance groove; 4. Mounting bracket; 41. Intermediate plate; 42. First mounting plate; 421. Mounting hole; 422. Passage hole; 423. First clearance hole; 424. Second clearance hole; 43. Second mounting plate; 431. Third clearance hole; 432. Fourth clearance hole; 5. Driving rod; 51. Driving gear; 6. Driven rod; 61. Driven gear; 7. Stabilizing bearing; 8. Auxiliary plate; 9. Furnace body. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art are within the scope of protection of this application.

[0028] An embodiment of this application provides an automatic solder scraping device, which includes an adjustable spacing component 1, a rotating module 2, and a scraper component 3.

[0029] The automatic solder ash scraping device of this application embodiment is described in detail below with reference to the accompanying drawings.

[0030] In the embodiments of this application, the furnace body 9 can be a tin furnace. However, it is understood that the tin furnace is only an example of the furnace body 9 in the embodiments of this application and not a limiting description. Without departing from the inventive concept of this application, any known type of furnace can be used as the furnace body 9 in this application.

[0031] Figure 1 This is a schematic diagram of the automatic solder ash scraping device provided in the embodiments of this application, used to illustrate the positional relationship between the automatic solder ash scraping device and the furnace body, such as... Figure 1 As shown, the automatic solder ash scraping device includes a spacing adjustment component 1, a rotating module 2, and a scraper assembly 3. The scraper assembly 3 includes a scraper blade 31, which can scrape the solder ash to one side inside the furnace body 9 to avoid the wire.

[0032] In the embodiments of this application, the wire can be a photovoltaic solder ribbon. However, it is understood that the photovoltaic solder ribbon is only an example of the wire in the embodiments of this application and not a limiting description. Without departing from the inventive concept of this application, any known type of solder ribbon can be used as the wire in this application.

[0033] Preferably, the scraper assembly 3 includes two scraper blades 31, and the two scraper blades 31 rotate in opposite directions.

[0034] like Figure 1 As shown, the adjustment assembly 1 includes a sliding table electric cylinder module, which is located directly above the furnace body 9. In one example, the adjustment assembly is connected to the tin furnace via a connecting plate (not shown). The sliding table of the adjustment assembly faces the tin alloy solution inside the furnace body 9, which facilitates the control of the scraper assembly 3 to move closer to or further away from the tin alloy solution inside the furnace body 9.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, the rotating module 2 is connected to the slide of the adjusting assembly 1 via a mounting bracket 4, and the mounting bracket 4 is connected to the slide of the adjusting assembly 1 via bolts. The mounting bracket 4 includes an intermediate plate 41 connected to the adjusting assembly 1, and a first mounting plate 42 and a second mounting plate 43 are respectively connected to the two ends of the intermediate plate 41 pointing from the adjusting assembly 1 toward the furnace body 9. The first mounting plate 42 is connected to a synchronous drive assembly 21 for driving the two scrapers 31 to rotate simultaneously.

[0036] like Figure 2 and Figure 4As shown, the synchronous drive assembly 21 includes a synchronous belt drive module 211 and a rotary drive source 212. In one example, the rotary drive source 212 is a stepper motor. A first mounting plate 42 has several mounting holes 421 extending through its thickness. The rotary drive source 212 is located on the side of the first mounting plate 42 closest to the furnace body 9. Bolts are passed through the mounting holes 421 and connected to the threaded holes on the rotary drive source 212, thereby fixing the rotary drive source 212. The first mounting plate 42 also has a through hole 422 for the drive shaft of the rotary drive source 212 to pass through.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, the synchronous belt drive module 211 includes a synchronous belt assembly 2111 located on the side of the first mounting plate 42 away from the furnace body 9. The drive pulley of the synchronous belt assembly 2111 is connected to the drive shaft of the rotary drive source 212 so that the rotary drive source 212 drives the synchronous belt assembly 2111 to rotate. The first mounting plate 42 has a first clearance hole 423 and a second clearance hole 424 extending through it in the direction pointing towards the furnace body 9. A drive rod 5 passes through the first clearance hole 423. One end of the drive rod 5, close to the synchronous belt assembly 2111 and extending out of the first clearance hole 423, is connected to the driven pulley of the synchronous belt assembly 2111. A driven rod 6 passes through the second clearance hole 424. A drive gear 51 is sleeved on the outer wall of the drive rod 5, and a driven gear 61 is sleeved on the outer wall of the driven rod 6. The drive gear 51 and the driven gear 61 mesh.

[0038] The two scraper blades 31 are respectively connected to the driving rod 5 and the driven rod 6.

[0039] Preferably, the mounting hole 421 is a strip-shaped hole. Loosen the bolts fixing the rotary drive source 212, and then move the rotary drive source 212 to drive the drive wheel to move, thereby adjusting the distance between the drive wheel and the driven wheel, so as to adjust the tension between the synchronous belt of the synchronous belt group 2111 and the drive wheel and the driven wheel.

[0040] Preferably, such as Figure 3 As shown, both the driving gear 51 and the driven gear 61 are spur gears, and the transmission ratio between the driving gear 51 and the driven gear 61 is 1:1, so as to achieve the same scraping speed of the two scraper blades 31.

[0041] like Figure 3 and Figure 4As shown, the second mounting plate 43 has a third clearance hole 431 and a fourth clearance hole 432 extending through it in the direction pointing towards the furnace body 9. Stabilizing bearings 7 are installed in the first clearance hole 423, the second clearance hole 424, the third clearance hole 431, and the fourth clearance hole 432. Two retaining ring grooves are each provided on the side wall of the driving rod 5 and the driven rod 6. The driving rod 5 passes through the first clearance hole 423, the third clearance hole 431, and the corresponding stabilizing bearing 7, respectively, and the driven rod 6 passes through the second clearance hole 424, the fourth clearance hole 432, and the corresponding stabilizing bearing 7. A retaining ring is then inserted into the retaining ring groove to position the driving rod 5 and the driven rod 6.

[0042] Furthermore, the end of the scraper 31 furthest from its own rotation center line is provided with a clearance groove 311 to avoid collision with the wire, preventing the scraper 31 from colliding with the wire during rotation. Simultaneously, the clearance groove 311 has an arc-shaped cross-section to prevent the wire from being scratched when passing through it. The scraper 31 is made of polytetrafluoroethylene or stainless steel, materials that are not easily corroded in tin alloy solutions, thus extending the service life of the scraper 31. The scraper 31 is a rectangular flat sheet, with its length direction aligned with the radial direction of the scraping ring and its thickness direction aligned with the tangential direction of the scraping ring, allowing the scraper 31 to scrape and roll up the tin ash inside the furnace to the maximum extent in one pass.

[0043] In this application embodiment, the wire refers to photovoltaic solder ribbon. It is understood that the photovoltaic solder ribbon is only an example of the wire in this application embodiment and not a limiting description. Without departing from the inventive concept of this application, any known type of solder ribbon can be used as the wire in this application.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown, both the active rod 5 and the driven rod 6 are connected to an auxiliary plate 8 at the end near the furnace body 9. The auxiliary plate 8 and the scraper 31 are at a preset angle. When the scraper 31 is covered with a large amount of tin ash, affecting its scraping effect, the auxiliary plate 8 can continue to scrape the tin ash on the surface of the tin alloy solution in the tin furnace. At the same time, the auxiliary plate 8 and the scraper 31 can compress the volume of tin ash by scraping it simultaneously, thereby increasing the volume of tin ash that can be placed on the surface of the tin alloy solution.

[0045] Preferably, the preset angle range between the auxiliary plate 8 and the scraper 31 is 45 degrees to 55 degrees. Within this range, the cooperation between the auxiliary plate 8 and the scraper 31 is better. After the scraper 31 has been working for a period of time, a large amount of tin ash will adhere to its surface, affecting its scraping effect. At this time, the auxiliary plate 8 continues to scrape the surface of the tin alloy solution after the scraper 31 has scraped, thereby scraping the tin ash on the tin alloy surface to one side to avoid affecting the processing of the wire. At the same time, the scraper 31 can scrape away the more viscous tin ash each time it scrapes, so that there will not be a lot of tin ash adhering to the auxiliary plate 8, thereby extending the service life of the device. At the same time, within this preset angle range, the auxiliary plate can still continue to work without tin ash adhering, achieving compression of the tin ash volume.

[0046] Specifically, the pitch adjustment component 1 is activated, controlling the rotation module 2 and scraper assembly 3 to approach the furnace body 9. Then, the rotation drive source 212 is activated, transmitting power to the synchronous belt assembly 2111, which in turn drives the drive rod 5 to rotate. This, in turn, drives the driven rod 6 to rotate via the drive gear 51 and driven gear 61, thereby closing the two scraper blades 31. The scraper blades 31 are then controlled to approach the tin alloy solution inside the furnace body 9. Once they reach the appropriate position, the rotation module 2 is controlled to rotate the two scraper blades 31 by 90° respectively, scraping the tin ash inside the furnace body 9 together. This can be achieved through an external control device. In one example, the external control device is a PLC control cabinet. By setting a certain time for the PLC control cabinet, the pitch adjustment component 1 and the rotation module 2 can be controlled to perform corresponding actions, realizing the timed scraping of tin ash inside the furnace body 9.

[0047] The above provides a detailed description of the automatic solder ash scraping device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

[0048] In the description of this application, it should be understood that the terms "vertical," "parallel," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic tin dross skimming device, characterized in that, The device comprises: a scraper assembly (3) comprising a scraper blade (31) for scraping tin dust to one side of the inside of a furnace body (9) to avoid the wire; a distance adjusting assembly (1) for driving the scraper assembly (3) to approach or move away from the furnace body (9); a rotating module (2) for driving the scraper assembly (3) to rotate around the center line of the rotating module (2), which is parallel to the driving direction of the distance adjusting assembly (1); the rotating module (2) is slidingly connected with the distance adjusting assembly (1), the scraper assembly (3) is located on the side of the rotating module (2) away from the distance adjusting assembly (1), and the scraper assembly (3) is connected with the rotating module (2); the scraper blade (31) has at least two, and the rotating directions of the two scraper blades (31) are opposite.

2. The automatic tin blackening device according to claim 1, characterized in that The rotating module (2) is connected with the distance adjusting assembly (1) through a mounting frame (4), the mounting frame (4) comprises an intermediate plate (41) connected with the distance adjusting assembly (1), a first mounting plate (42) connected on one side of the intermediate plate (41) along the driving direction of the distance adjusting assembly (1), and a synchronous driving assembly (21) for driving the two scraper blades (31) to rotate simultaneously connected with the first mounting plate (42).

3. The automatic tin proofer device of claim 2, wherein, The synchronous driving assembly (21) comprises a synchronous belt driving module (211), the first mounting plate (42) is provided with a first passing hole (423) and a second passing hole (424) penetratingly formed along the direction of itself pointing to the furnace body (9), a driving rod (5) is arranged in the first passing hole (423), a driven rod (6) is arranged in the second passing hole (424), a driving gear (51) is sleeved on the outer side wall of the driving rod (5), a driven gear (61) engaged with the driving gear (51) is sleeved on the outer side wall of the driven rod (6); the driving rod (5) and the driven rod (6) are respectively connected with the corresponding scraper blades (31) on the side close to the furnace body (9).

4. The automatic tin proofer device of claim 3, wherein A second mounting plate (43) is arranged between the first mounting plate (42) and the scraper blade (31), the second mounting plate (43) is connected with the intermediate plate (41), and the second mounting plate (43) is provided with a third passing hole (431) and a fourth passing hole (432) penetratingly formed along the direction of itself pointing to the furnace body (9); the third passing hole (431) is used for the driving rod (5) to pass through, and the fourth passing hole (432) is used for the driven rod (6) to pass through.

5. The automatic tin proofer device of claim 3, wherein The driving rod (5) and the driven rod (6) are both connected with an auxiliary blade (8) on the end close to the furnace body (9), and the auxiliary blade (8) is arranged at a preset angle between the scraper blades (31).

6. The automatic tin blackening device according to claim 3, wherein The driving gear (51) and the driven gear (61) are both spur gears.

7. The automatic tin proofer device of claim 3, wherein The first passing hole (423) and the second passing hole (424) are both provided with a stabilizing bearing (7), and the stabilizing bearings (7) are respectively sleeved on the outer side walls of the driving rod (5) and the driven rod (6).

8. The automatic tin proofer according to any one of claims 3 to 7, wherein The transmission ratio of the driving gear (51) to the driven gear (61) is 1:

1.

9. The automatic tin proofer device of claim 1, wherein, An avoiding groove (311) for avoiding the wire is arranged at one end of the blade (31) away from its own rotation center line.

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