A photovoltaic solder strip tin plating production equipment

Abstract

This invention relates to a photovoltaic solder ribbon tin plating production equipment, comprising a tin bath filled with molten tin; a flow mechanism for driving the flow of molten tin, the flow mechanism including a partition fixedly welded to the inside of the tin bath, with rotating shafts on both the upper and lower sides of the partition, both ends of the two rotating shafts being rotatably connected to the inner wall of the tin bath, and multiple turbines fixedly installed on the outside of the two rotating shafts, the right ends of the two rotating shafts rotatably penetrating the tin bath and being connected to a transmission mechanism; a first motor fixedly installed outside the tin bath, the drive shaft of the first motor being coaxially fixedly connected to one of the rotating shafts; and an electroplating mechanism for electroplating the photovoltaic solder ribbon. Compared with the prior art, this invention can clean impurities on the surface of the photovoltaic solder ribbon, prevents oxide film and bubbles from forming during tin plating, produces a more uniform plating layer, achieves better tin plating effect, and can recover and reuse inert gas, saving resources.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic solder ribbon production, specifically to a photovoltaic solder ribbon tin plating production equipment. Background Technology

[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, is divided into busbars and interconnects. It is used to connect the cells of photovoltaic modules and plays an important role in conducting electricity and concentrating current. Solder ribbon is an important raw material in the photovoltaic module welding process. The quality of solder ribbon will directly affect the current collection efficiency of photovoltaic modules and have a great impact on the power of photovoltaic modules.

[0003] In existing photovoltaic solder ribbons, tin plating is typically done by directly immersing the ribbon in a tin bath. The high temperature of the tin bath makes the surface prone to oxidation, forming an oxide film. This results in tin oxide in the plating layer, leading to uneven tin plating and poor plating quality, which negatively impacts the performance of the photovoltaic solder ribbon. Furthermore, air can easily adhere to the surface of the photovoltaic solder ribbon and be introduced into the tin bath during plating, causing bubbles to form on the surface and further compromising the plating result. After production, the photovoltaic solder ribbon is left outdoors, making it susceptible to contamination from external impurities. Additionally, metal debris and other impurities can easily adhere to the surface of the photovoltaic solder ribbon during production, leading to uneven tin plating in subsequent processes.

[0004] Therefore, based on the above problems, we invented a photovoltaic solder ribbon tin plating production equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a photovoltaic solder ribbon tin plating production equipment to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic solder ribbon tin plating production equipment, comprising,

[0007] A tin pool, wherein the tin pool is filled with molten tin;

[0008] A flow mechanism is used to drive the flow of molten solder. The flow mechanism includes a partition plate fixedly welded to the inside of the solder bath. The upper and lower sides of the partition plate are provided with rotating shafts. Both ends of the two rotating shafts are rotatably connected to the inner wall of the solder bath. Multiple turbines are fixedly installed on the outside of the two rotating shafts. The right ends of the two rotating shafts rotatably pass through the solder bath and are connected to the transmission mechanism. A first motor is fixedly installed on the outside of the solder bath. The drive shaft of the first motor is coaxially fixedly connected to one of the rotating shafts.

[0009] An electroplating mechanism is used to electroplat photovoltaic solder ribbon. The electroplating mechanism includes a first curved tube and a second curved tube. Both the first curved tube and the second curved tube are filled with inert gas. Both the first curved tube and the second curved tube are located at the opening of the tin bath. The photovoltaic solder ribbon passes through the first curved tube and extends into the tin bath, and then passes through the second curved tube and extends to the outside of the tin bath. A gas supply pipe is provided above the tin bath. The gas supply pipe is connected to both the first curved tube and the second curved tube.

[0010] A cleaning mechanism for cleaning inert gases includes a cleaning box with a lid. A filter plate is installed inside the cleaning box, and a stirring shaft is located on the right side of the filter plate. A second motor is installed on the lid, and its drive shaft rotates through the lid and is coaxially and fixedly connected to the stirring shaft. An outlet pipe is located in the middle of the lid, and an insert plate is provided on the lid. An inert gas purification membrane is installed on the insert plate. A gas collection pipe is installed on the lower right side of the cleaning box, and a wide hopper is installed at the lower end of the gas collection pipe. The inlet of a first curved pipe is located inside the wide hopper, which has perforations matching the photovoltaic welding ribbon. The gas supply pipe is connected to the cleaning box.

[0011] Furthermore, the turbines located outside the two shafts are arranged in opposite directions, and the multiple turbines located outside the same shaft are distributed in a uniform array.

[0012] Furthermore, the transmission mechanism includes two pulleys, which are coaxially and fixedly connected to two rotating shafts, and are connected to each other by a synchronous belt.

[0013] Furthermore, both the first and second curved tubes are equipped with fixed pulleys inside.

[0014] Furthermore, it also includes a cleaning mechanism for cleaning the surface of the photovoltaic welding strip. The cleaning mechanism includes two fixed plates, both of which are fixedly connected to the wide bucket. Two cleaning rollers are provided between the two fixed plates. Both fixed plates are provided with through holes, and two sliders are slidably connected in the two through holes. The two ends of the two cleaning rollers are respectively rotatably connected through four sliders. The two fixed plates are provided with a drive mechanism for driving the two cleaning rollers.

[0015] Furthermore, the driving mechanism includes two first gears and two second gears. The two first gears are meshed together, and each of the two first gears meshes with one of the two second gears. A first connecting plate and a second connecting plate are respectively provided outside the first gears and the second gears. Both first gears are rotatably connected to the first connecting plate, and the meshing first gears and second gears are rotatably connected to the second connecting plate. A rack is slidably connected to the outside of the fixed plate, and the rack is fixedly connected to the first connecting plate. A rotating shaft is rotatably connected between the two fixed plates. Two driving gears are coaxially fixedly connected to the outside of the rotating shaft, and the two driving gears mesh with the two racks respectively. A third motor is fixedly installed outside the fixed plate, and the drive shaft of the third motor is coaxially fixedly connected to the rotating shaft. A fourth motor is fixedly installed outside the second connecting plate, and the drive shaft of the fourth motor rotatably passes through the second connecting plate and the first connecting plate and is coaxially fixedly connected to the first gear.

[0016] Furthermore, the surface of the cleaning roller is covered with a cleaning cloth.

[0017] Furthermore, a solenoid valve is installed inside the gas supply pipe.

[0018] Furthermore, a one-way valve is provided at the connection point between the air supply pipe and the cleaning box.

[0019] Furthermore, the portion of the cleaning box located on the right side of the filter plate is filled with a desiccant.

[0020] Compared with the prior art, the present invention provides a photovoltaic solder ribbon tin plating production equipment, which has the following features:

[0021] Beneficial effects:

[0022] 1. The photovoltaic solder ribbon tin plating production equipment is equipped with a dark current mechanism. The first motor drives two rotating shafts to rotate, and the two rotating shafts drive multiple turbines to rotate. During the rotation of the turbines, the molten tin at the bottom of the tin bath slowly flows, thereby forming a dark current. When it comes into contact with the photovoltaic solder ribbon, it can directly carry away the gas attached to it, avoiding the generation of bubbles during electroplating, and the tin plating effect is better.

[0023] 2. This photovoltaic solder ribbon tin plating production equipment is equipped with an electroplating mechanism. The photovoltaic solder ribbon substrate passes through a first curved tube and a second curved tube and moves continuously. When the photovoltaic solder ribbon substrate is between the first and second curved tubes, it is inside the molten tin, at which point electroplating can be performed. It should be noted that both the first and second curved tubes are filled with inert gas. The molten tin inside the first and second curved tubes will not come into direct contact with the outside air. The photovoltaic solder ribbon substrate will come into direct contact with the molten tin when passing through the first and second curved tubes, without bringing air into the molten tin. At the same time, the gas supply pipe will continuously supply inert gas to the first and second curved tubes. The inert gas is blown in the first curved tube in the opposite direction of the movement of the photovoltaic solder ribbon, carrying away the air attached to the photovoltaic solder ribbon and avoiding oxidation of the molten tin, that is, avoiding the formation of an oxide film on the surface of the photovoltaic solder ribbon. This results in uniform tin plating of the photovoltaic solder ribbon and a better tin plating effect.

[0024] 3. This photovoltaic solder strip tin plating production equipment is equipped with a cleaning mechanism. When the inert gas is discharged from the first curved pipe, it is collected through the wide hopper and put into the cleaning box through the gas collection pipe. After being dried by a desiccant, the inert gas is purified by an inert gas purification membrane, so that part of the inert gas can be recovered and reused, saving resources.

[0025] 4. This photovoltaic solder ribbon tin plating production equipment is equipped with a cleaning mechanism. A third motor drives a rotating shaft to rotate, which in turn drives two drive gears to rotate. The two drive gears drive two racks to move, and the racks drive a first connecting plate to move. The first connecting plate, through a second connecting plate, drives two cleaning rollers to move relative to each other until they reach a suitable position. The distance between the cleaning rollers can be adjusted according to the thickness of the photovoltaic solder ribbon, making it applicable to a wide range of applications. Then, a fourth motor drives the two first gears to rotate in opposite directions. During this rotation, the two second gears will rotate relative to each other, thus cleaning the surface impurities of the photovoltaic solder ribbon. This prevents uneven plating during subsequent electroplating.

[0026] This invention can clean impurities on the surface of photovoltaic solder ribbons, prevent oxide films and bubbles from forming during tin plating, achieve a more uniform plating layer and better tin plating effect, and can also recycle inert gases, saving resources. Attached Figure Description

[0027] Figure 1 This is a front view of the present invention.

[0028] Figure 2 This is a front structural perspective view of the present invention;

[0029] Figure 3 This is a perspective view of the structure of the first curved tube and the second curved tube in this invention;

[0030] Figure 4 for Figure 3Enlarged view of point A in the middle;

[0031] Figure 5 This is a front view of the cleaning mechanism in this invention.

[0032] Figure 6 This is a schematic diagram of the rear structure of the cleaning mechanism in this invention;

[0033] Figure 7 This is a side view of the cleaning mechanism in this invention.

[0034] In the diagram: 1. Tin pool; 2. Dark flow mechanism; 3. Baffle plate; 4. Rotating shaft; 5. Turbine; 6. Transmission mechanism; 7. First motor; 8. Electroplating mechanism; 9. First curved pipe; 10. Second curved pipe; 11. Air supply pipe; 12. Cleaning mechanism; 13. Cleaning box; 14. Box cover; 15. Filter plate; 16. Stirring shaft; 17. Second motor; 18. Air outlet pipe; 19. Insert plate; 20. Third motor; 21. Air collection pipe; 22. Wide bucket; 23. Pulley; 24. Fixed pulley; 25. Cleaning mechanism; 26. Fixed plate; 27. Cleaning roller; 28. Through hole; 29. ​​Slider; 30. Drive mechanism; 31. First gear; 32. Second gear; 33. First connecting plate; 34. Second connecting plate; 35. Rack; 36. Rotating shaft; 37. Drive gear; 38. Fourth motor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a photovoltaic solder ribbon tin plating production equipment.

[0037] like Figure 1-7 As shown, a photovoltaic solder ribbon tin plating production equipment includes,

[0038] Tin pool 1, which is filled with molten tin;

[0039] To prevent gas from adhering to the photovoltaic solder ribbon substrate after it enters the molten solder, a dark current mechanism 2 is provided to drive the molten solder to flow and remove the gas on the surface of the photovoltaic solder ribbon substrate. The dark current mechanism 2 includes a partition 3 fixedly welded to the inside of the molten solder pool 1. The upper and lower sides of the partition 3 are provided with rotating shafts 4. Both ends of the two rotating shafts 4 are rotatably connected to the inner wall of the molten solder pool 1. Multiple turbines 5 are fixedly installed on the outside of the two rotating shafts 4. It is worth mentioning that the turbines 5 located outside the two rotating shafts 4 are arranged in opposite directions, and the multiple turbines 5 located outside the same rotating shaft 4 are evenly distributed in an array. The right ends of the two rotating shafts 4 rotate through the molten solder pool 1 and are connected by a transmission mechanism 6. It should be noted that the transmission mechanism 6 includes two pulleys 23. The two pulleys 23 are coaxially fixedly connected to the two rotating shafts 4 respectively. The two pulleys 23 are connected by a synchronous belt. A first motor 7 is fixedly installed outside the molten solder pool 1. The drive shaft of the first motor 7 is coaxially fixedly connected to one of the rotating shafts 4.

[0040] Through the above technical features: in order to allow the molten tin to flow and carry away the gas on the surface of the photovoltaic solder ribbon substrate, the first motor 7 drives two rotating shafts 4 to rotate, and the two rotating shafts 4 drive multiple turbines 5 to rotate. During the rotation of the turbines 5, the molten tin at the bottom of the molten tin pool flows slowly, thereby forming a dark flow. When it comes into contact with the photovoltaic solder ribbon, it can directly carry away the gas attached to it.

[0041] To facilitate the electroplating of photovoltaic solder ribbons, an electroplating mechanism 8 is provided. The electroplating mechanism 8 includes a first curved tube 9 and a second curved tube 10. Furthermore, both the first curved tube 9 and the second curved tube 10 are equipped with fixed pulleys 24 and filled with inert gas. Both the first curved tube 9 and the second curved tube 10 are located at the opening of the tin bath 1. The photovoltaic solder ribbon passes through the first curved tube 9 and extends into the tin bath 1, then through the second curved tube 10 and extends to the outside of the tin bath 1. A gas supply pipe 11 is provided above the tin bath 1. It should be noted that the gas supply pipe 11 is equipped with a solenoid valve and is connected to both the first curved tube 9 and the second curved tube 10. It should be noted that the first curved tube 9 and the second curved tube 10 are transparent to facilitate observation of the oxide film thickness on the surface of the tin liquid inside and outside the first curved tube 9 and the second curved tube 10, which is convenient for staff to clean them regularly.

[0042] Through the above-mentioned technical features, the photovoltaic solder ribbon substrate passes through the first curved tube 9 and the second curved tube 10 and moves continuously. When the photovoltaic solder ribbon substrate is between the first curved tube 9 and the second curved tube 10, it is inside the molten tin, at which point electroplating can be performed. Both the first curved tube 9 and the second curved tube 10 are filled with inert gas, so the molten tin inside the first curved tube 9 and the second curved tube 10 will not come into direct contact with the outside air. When the photovoltaic solder ribbon substrate passes through the first curved tube 9 and the second curved tube 10, it will come into direct contact with the molten tin, and air will not be brought into the molten tin, resulting in a good tin plating effect for the photovoltaic solder ribbon.

[0043] When tinning photovoltaic solder, the inert gas introduced through the first curved pipe 9 needs to be recovered and cleaned. Therefore, a cleaning mechanism 12 is provided to clean the inert gas. The cleaning mechanism 12 includes a cleaning box 13, a box cover 14 is installed on the cleaning box 13, and a filter plate 15 is installed inside the cleaning box 13. It should be noted that the part of the cleaning box 13 located on the right side of the filter plate 15 is filled with desiccant. A stirring shaft 16 is provided on the right side of the filter plate 15. A second motor 17 is installed on the box cover 14, and the drive shaft of the second motor 17 rotates through the box cover. 14 is coaxially and fixedly connected to the stirring shaft 16. An air outlet pipe 18 is provided in the middle of the box cover 14. An insert plate 19 is provided on the box cover 14. An inert gas purification membrane is installed on the insert plate 19. An air collection pipe 21 is installed on the lower right side of the cleaning box 13. A wide hopper 22 is installed at the lower end of the air collection pipe 21. The inlet of the first curved pipe 9 is set in the wide hopper 22. The wide hopper 22 is provided with a perforation that matches the photovoltaic welding strip. The air supply pipe 11 is connected to the cleaning box 13. It should be noted that a one-way valve is provided at the part where the air supply pipe 11 is connected to the cleaning box 13.

[0044] Through the above-mentioned technical features, the gas supply pipe 11 continuously supplies inert gas to the first curved pipe 9 and the second curved pipe 10. The inert gas is blown in the opposite direction of the photovoltaic welding ribbon in the first curved pipe 9, carrying away the air attached to the photovoltaic welding ribbon. At the same time, when the inert gas is discharged from the first curved pipe 9, it is collected by the wide hopper 22 and put into the cleaning box 13 through the gas collection pipe 21. After being dried by the desiccant, the inert gas is purified by the inert gas purification membrane, so that part of the inert gas can be recovered and reused.

[0045] Because impurities may adhere to the surface of the photovoltaic solder ribbon, a cleaning mechanism 25 is provided to clean the surface of the photovoltaic solder ribbon and prevent impurities from affecting subsequent tin plating. The cleaning mechanism 25 includes two fixed plates 26, both of which are fixedly connected to the wide bucket 22. Two cleaning rollers 27 are provided between the two fixed plates 26. It is worth mentioning that the surface of the cleaning rollers 27 is covered with a cleaning cloth. Both fixed plates 26 have through holes 28, and two sliders 29 are slidably connected in each of the two through holes 28. The two ends of the two cleaning rollers 27 are respectively rotatably connected through four sliders 29. The two fixed plates 26 are provided with a drive mechanism 30 for driving the two cleaning rollers 27. It should be noted that the drive mechanism 30 includes two first gears 31 and two second gears 32. The two first gears 31 are meshed with each other, and the two first gears 31 mesh with the two second gears 32 respectively. The connection includes a first connecting plate 33 and a second connecting plate 34 on the outside of the first gear 31 and the second gear 32, respectively. Both first gears 31 are rotatably connected to the first connecting plate 33, and the meshing first gear 31 and second gear 32 are rotatably connected to the second connecting plate 34. A rack 35 is slidably connected to the outside of the fixed plate 26, and the rack 35 is fixedly connected to the first connecting plate 33. A rotating shaft 36 is rotatably connected between the two fixed plates 26, and two drive gears 37 are coaxially fixedly connected to the outside of the rotating shaft 36. The two drive gears 37 are meshing with the two racks 35 respectively. A third motor 20 is fixedly installed on the outside of the fixed plate 26, and the drive shaft of the third motor 20 is coaxially fixedly connected to the rotating shaft 36. A fourth motor 38 is fixedly installed on the outside of the second connecting plate 34, and the drive shaft of the fourth motor 38 rotatably passes through the second connecting plate 34 and the first connecting plate 33 and is coaxially fixedly connected to the first gear 31.

[0046] Through the above technical features: the third motor 20 drives the rotating shaft 36 to rotate, the rotating shaft 36 drives the two drive gears 37 to rotate, the two drive gears 37 drive the two racks 35 to move, the racks 35 drive the first connecting plate 33 to move, the first connecting plate 33 drives the two cleaning rollers 27 to move relative to each other through the second connecting plate 34 until the appropriate position is reached, so that the distance of the cleaning rollers can be adjusted according to the thickness of the photovoltaic welding strip. Then, the fourth motor 38 drives the two first gears 31 to rotate in opposite directions. During the rotation, the two second gears 32 will rotate relative to each other, so that the surface impurities of the photovoltaic welding strip can be cleaned.

[0047] Working principle:

[0048] 1) Driving the flow of molten solder: The first motor 7 drives two rotating shafts 4 to rotate, and the two rotating shafts 4 drive multiple turbines 5 to rotate. During the rotation of the turbines 5, the molten solder at the bottom of the solder pool flows slowly, thus forming a dark flow.

[0049] 2) Inert gas is introduced into the first curved pipe 9 and the second curved pipe 10: The gas supply pipe 11 continuously supplies inert gas to the first curved pipe 9 and the second curved pipe 10. The inert gas is blown in the opposite direction of the photovoltaic welding ribbon movement in the first curved pipe 9, carrying away the air attached to the photovoltaic welding ribbon. At the same time, when the inert gas is discharged from the first curved pipe 9, it is collected by the wide hopper 22 and entered into the cleaning box 13 through the gas collection pipe 21. After being dried by a desiccant, the inert gas is purified by the inert gas purification membrane, so that part of the inert gas can be recovered and reused.

[0050] 3) Removing impurities from the photovoltaic ribbon surface: The third motor 20 drives the rotating shaft 36 to rotate, which in turn drives the two drive gears 37 to rotate. The two drive gears 37 drive the two racks 35 to move, and the racks 35 drive the first connecting plate 33 to move. The first connecting plate 33 drives the two cleaning rollers 27 to move relative to each other through the second connecting plate 34 until they reach the appropriate position. The distance between the cleaning rollers can be adjusted according to the thickness of the photovoltaic ribbon. Then, the fourth motor 38 drives the two first gears 31 to rotate in opposite directions. During the rotation, the two second gears 32 will rotate relative to each other, thus cleaning the impurities on the surface of the photovoltaic ribbon.

[0051] 4) Electroplating of photovoltaic ribbon: After the photovoltaic ribbon substrate is cleaned by the cleaning mechanism, it passes through the first curved tube 9 and the second curved tube 10 and moves continuously. When the photovoltaic ribbon substrate is between the first curved tube 9 and the second curved tube 10, it is inside the molten tin, and electroplating can be performed at this time. The first curved tube 9 and the second curved tube 10 are filled with inert gas. The molten tin inside the first curved tube 9 and the second curved tube 10 will not come into direct contact with the outside air. The photovoltaic ribbon substrate will come into direct contact with the molten tin for electroplating when passing through the first curved tube 9 and the second curved tube 10.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic solder strip tin plating production equipment, characterized in that: include, A tin pool (1) is filled with molten tin. The dark flow mechanism (2) is used to drive the flow of molten solder. The dark flow mechanism (2) includes a partition (3) fixedly welded to the inside of the molten solder pool (1). The upper and lower sides of the partition (3) are provided with rotating shafts (4). Both ends of the two rotating shafts (4) are rotatably connected to the inner wall of the molten solder pool (1). Multiple turbines (5) are fixedly installed on the outside of the two rotating shafts (4). The right end of the two rotating shafts (4) rotatably passes through the molten solder pool (1) and is connected to the transmission mechanism (6). A first motor (7) is fixedly installed on the outside of the molten solder pool (1). The drive shaft of the first motor (7) is coaxially fixedly connected to one of the rotating shafts (4). An electroplating mechanism (8) is used to electroplat photovoltaic solder ribbon. The electroplating mechanism (8) includes a first curved tube (9) and a second curved tube (10). Both the first curved tube (9) and the second curved tube (10) are filled with inert gas. Both the first curved tube (9) and the second curved tube (10) are located at the opening of the tin bath (1). The photovoltaic solder ribbon passes through the first curved tube (9) and extends into the tin bath (1), and then passes through the second curved tube (10) and extends to the outside of the tin bath (1). A gas supply pipe (11) is provided above the tin bath (1). The gas supply pipe (11) is connected to both the first curved tube (9) and the second curved tube (10). A cleaning mechanism (12) is used to clean inert gases. The cleaning mechanism (12) includes a cleaning box (13), a box cover (14) is installed on the cleaning box (13), a filter plate (15) is installed inside the cleaning box (13), a stirring shaft (16) is provided on the right side of the filter plate (15), a second motor (17) is installed on the box cover (14), the drive shaft of the second motor (17) rotates through the box cover (14) and is coaxially fixedly connected to the stirring shaft (16). A gas outlet pipe (18) is provided in the middle of the box cover (14). An insert plate (19) is provided on the box cover (14). An inert gas purification membrane is installed on the insert plate (19). A gas collection pipe (21) is installed on the lower right side of the cleaning box (13). A wide hopper (22) is installed at the lower end of the gas collection pipe (21). The inlet of the first curved pipe (9) is located in the wide hopper (22). A perforation matching the photovoltaic welding strip is provided on the wide hopper (22). The gas supply pipe (11) is connected to the cleaning box (13).

2. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: The turbines (5) located outside the two shafts (4) are arranged in opposite directions, and the multiple turbines (5) located outside the same shaft (4) are distributed in a uniform array.

3. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: The transmission mechanism (6) includes two pulleys (23), which are coaxially fixedly connected to two rotating shafts (4) respectively, and are connected to each other by a synchronous belt.

4. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: Both the first curved tube (9) and the second curved tube (10) are equipped with fixed pulleys (24).

5. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: It also includes a cleaning mechanism (25) for cleaning the surface of the photovoltaic welding strip. The cleaning mechanism (25) includes two fixed plates (26), both of which are fixedly connected to the wide bucket (22). Two cleaning rollers (27) are provided between the two fixed plates (26). Both fixed plates (26) are provided with through holes (28). Two sliders (29) are slidably connected in the two through holes (28). The two ends of the two cleaning rollers (27) are rotatably connected through the four sliders (29). The two fixed plates (26) are provided with a driving mechanism (30) for driving the two cleaning rollers (27).

6. The photovoltaic solder strip tin plating production equipment according to claim 5, characterized in that: The drive mechanism (30) includes two first gears (31) and two second gears (32). The two first gears (31) are meshed with each other, and the two first gears (31) are respectively meshed with the two second gears (32). A first connecting plate (33) and a second connecting plate (34) are respectively provided on the outside of the first gears (31) and the second gears (32). The two first gears (31) are rotatably connected to the first connecting plate (33), and the meshing first gears (31) and second gears (32) are rotatably connected to the second connecting plate (34). A rack (35) is slidably connected to the outside of the fixed plate (26). The rack (35) is connected to the first gears (31) and the second gears (32). A connecting plate (33) is fixedly connected, and a rotating shaft (36) is rotatably connected between the two fixed plates (26). Two drive gears (37) are coaxially fixedly connected to the outside of the rotating shaft (36). The two drive gears (37) are respectively meshed with two racks (35). A third motor (20) is fixedly installed outside the fixed plate (26). The drive shaft of the third motor (20) is coaxially fixedly connected to the rotating shaft (36). A fourth motor (38) is fixedly installed outside the second connecting plate (34). The drive shaft of the fourth motor (38) rotatably passes through the second connecting plate (34) and the first connecting plate (33) and is coaxially fixedly connected to the first gear (31).

7. The photovoltaic solder strip tin plating production equipment according to claim 5, characterized in that: The surface of the cleaning roller (27) is covered with a cleaning cloth.

8. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: A solenoid valve is installed inside the gas supply pipe (11).

9. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: A one-way valve is provided at the connection between the air supply pipe (11) and the cleaning box (13).

10. The photovoltaic solder strip tin plating production equipment according to claim 1, characterized in that: The cleaning box (13) located to the right of the filter plate (15) is filled with desiccant.

Images