Annealing processing equipment for photovoltaic welding strip

Abstract

The invention relates to the technical field of annealing processing, in particular to photovoltaic solder strip annealing processing equipment which comprises a machine body, and a steam box, a cooling pipe and a water tank are arranged on the machine body; the machine further comprises an opening and closing assembly, the opening and closing assembly comprises a first opening and closing module and a second opening and closing module, the first opening and closing module comprises a fixing frame fixedly installed on the machine body, a first gear roller and a second gear roller are movably installed on the fixing frame, and the second gear roller is driven by starting a servo motor; a second gear roller drives a first gear roller to rotate, so that the first gear roller drives an insection cover to expose a steam pipe, and meanwhile, the second gear roller also drives a rack, so that a first driving part moves downwards to drive an L-shaped cover plate to expose a cooling pipe; a user can directly pull the copper wire from the space exposed above the steam pipe and the cooling pipe, and compared with a traditional pipeline in a closed state, the traction operation can be better carried out.

Description

Technical Field

[0001] This invention relates to the field of annealing technology, specifically to a photovoltaic ribbon annealing equipment. Background Technology

[0002] Photovoltaic ribbon is a key material used in photovoltaic modules to connect solar cells and conduct current. It is usually composed of a copper substrate and a tin alloy coating on the surface. The manufacturing process of photovoltaic ribbon involves drawing and forging copper rods. During the manufacturing process, the copper wires also need to be annealed to improve their mechanical properties and conductivity, while eliminating internal stress, making the ribbon more durable and reliable.

[0003] Common annealing methods include hollow tube annealing and annealing wheel annealing. The core principle of annealing wheel annealing is to use the resistance heat generated when an electric current passes through the metal to heat the material, and then optimize its performance through rapid cooling. Steam is used during the annealing process to avoid excessive oxidation, making the mechanical properties and conductivity of the solder strip more stable. In existing equipment, before equipment operation or when reconnecting a broken wire, it is necessary to guide the copper wire through the traveling wheel, preheating wheel, and annealing wheel before entering the steam pipe and cooling pipe. However, common steam pipes and cooling pipes are closed to prevent steam overflow and cooling water outflow, making it difficult for workers to observe the traction process of the copper wire in the pipes, which can easily lead to jamming and other phenomena, affecting traction efficiency and making the operation more cumbersome. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a photovoltaic ribbon annealing processing equipment, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic welding strip annealing processing equipment, comprising a machine body, wherein a steam box, a cooling pipe and a water tank are provided on the machine body;

[0006] It also includes an opening and closing assembly, which includes a first opening and closing module and a second opening and closing module. The first opening and closing module includes a fixed frame that is fixedly installed on the machine body. A first gear roller and a second gear roller are movably installed on the fixed frame, and the first gear roller and the second gear roller mesh with each other.

[0007] A fixing plate is fixedly installed on the machine body, and a steam pipe is fixedly installed on the fixing plate. A toothed cover is movably installed on the outer surface of the steam pipe, and the toothed cover meshes with the first gear roller.

[0008] Preferably, the second opening and closing module includes mounting plates located on both sides below the steam pipe, and the mounting plates are fixedly installed with the machine body. A first guide post is fixedly installed on the mounting plate, a first return spring is sleeved on the outer periphery of the first guide post, and a rack is movably installed on the outer surface of the first guide post, and the rack meshes with a second gear roller.

[0009] A first drive rod and a second drive rod are fixedly installed on the two racks respectively. A first drive component is fixedly installed at the bottom of the first drive rod and the second drive rod. A second guide post is fixedly installed on the body. A second return spring is sleeved on the outer periphery of the second guide post. An L-shaped cover plate is movably installed on the outer surface of the second guide post.

[0010] Preferably, the first driving member is triangular in shape, and the top of the L-shaped cover plate is in active contact with the inclined surface of the first driving member.

[0011] Preferably, the surface of the steam box has a slot, and a baffle is provided in front of the slot, the baffle being hinged to the surface of the steam box.

[0012] Preferably, the water tank has an arc-shaped step inside, a guide frame is fixedly installed on the arc-shaped step, and a through groove is opened on the top of the water tank.

[0013] Preferably, it also includes a first inspection component, which includes a first rotating shaft disposed in the inner cavity of the steam box and a first guide plate fixedly installed with the first rotating shaft. A first cleaning component is fixedly installed at one end of the first guide plate, and a collection groove is opened at the other end.

[0014] Preferably, it further includes a second inspection component, which includes a second rotating shaft disposed on the machine body and a second guide plate fixedly installed with the second rotating shaft. A mounting frame is fixedly installed at one end of the second guide plate, and a rotating rod is movably installed on the mounting frame. A limit member and a second cleaning member are fixedly installed on the outer surface of the rotating rod.

[0015] Preferably, one end of the rotating rod passes through the mounting frame and extends to the outside of the mounting frame, and a nut is threaded onto the surface of the outer part of the mounting frame.

[0016] Preferably, it also includes a stop assembly, which includes a third guide post arranged in a mirror image and a third return spring sleeved on the outer periphery of the third guide post. A stop element is movably installed on the outer surface of the third guide post, and a second drive element is fixedly installed on both sides of the second guide plate.

[0017] Preferably, both the stop member and the second drive member are wedge-shaped, and the inclination angles of the inclined surfaces are equal.

[0018] In the above technical solution, the beneficial effect of the present invention is that by starting the servo motor to drive the second gear roller, the second gear roller drives the first gear roller to rotate, thereby driving the toothed cover to expose the steam pipe. At the same time, the second gear roller also drives the rack, causing the first driving member to move downward and drive the L-shaped cover plate to expose the cooling pipe. In this way, the user can directly pull the copper wire from the space exposed above the steam pipe and cooling pipe, which can better perform the pulling operation compared to the traditional closed pipe state.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the opening and closing component of the present invention. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the opening and closing component of the present invention. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the opening and closing component of the present invention. Figure 3 ;

[0026] Figure 6 This is a schematic diagram of the structure of the first opening and closing module of the present invention. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the structure of the first opening and closing module of the present invention. Figure 2 ;

[0028] Figure 8 This is a three-dimensional structural diagram of the arc-shaped step of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the present invention in the state of pulling copper wire;

[0030] Figure 10 This is a schematic diagram of the structure of the first inspection component of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the second inspection component of the present invention;

[0032] Figure 12 For the present invention Figure 11 A magnified schematic diagram of the partial structure at point A in the middle;

[0033] Figure 13 This is a schematic diagram of the structure of the stop component of the present invention.

[0034] In the diagram: 1. Body; 11. Walking wheel; 12. Preheating wheel; 13. Annealing wheel; 14. Copper wire; 15. Recognition camera; 16. Steam box; 17. Cooling pipe; 18. Water tank; 19. First guide wheel; 110. Guide pipe; 111. Second guide wheel; 2. Fixing frame; 21. First gear roller; 22. Second gear roller; 23. Servo motor; 24. Fixing plate; 25. Steam pipe; 26. Toothed cover; 3. Mounting plate; 31. First guide post; 32. First return spring; 33. Rack; 34. First drive rod; 3 5. Second drive rod; 36. First drive component; 37. Second guide post; 38. Second return spring; 39. L-shaped cover plate; 4. Arc-shaped step; 41. Guide frame; 42. Through groove; 5. First rotating shaft; 51. First guide plate; 52. First cleaning component; 53. Gathering groove; 6. Second rotating shaft; 61. Second guide plate; 62. Mounting frame; 63. Rotating rod; 64. Limiting component; 65. Second cleaning component; 66. Nut; 7. Third guide post; 71. Third return spring; 72. Stop component; 73. Second drive component; 8. Baffle. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example 1: Please refer to Figures 1 to 8 The present invention provides a technical solution: a photovoltaic welding strip annealing processing equipment, including a body 1, on which a steam box 16, a cooling pipe 17 and a water tank 18 are provided;

[0037] It also includes an opening and closing assembly, which includes a first opening and closing module and a second opening and closing module. The first opening and closing module includes a fixed frame 2 fixedly installed on the body 1. A first gear roller 21 and a second gear roller 22 are movably installed on the fixed frame 2, and the first gear roller 21 and the second gear roller 22 mesh with each other.

[0038] A fixing plate 24 is fixedly installed on the machine body 1. A steam pipe 25 is fixedly installed on the fixing plate 24. A toothed cover 26 is movably installed on the outer surface of the steam pipe 25, and the toothed cover 26 meshes with the first gear roller 21.

[0039] The second opening and closing module includes mounting plates 3 located on both sides below the steam pipe 25, and the mounting plates 3 are fixedly installed with the body 1. A first guide post 31 is fixedly installed on the mounting plate 3. A first return spring 32 is sleeved on the outer periphery of the first guide post 31. A rack 33 is movably installed on the outer surface of the first guide post 31, and the rack 33 meshes with the second gear roller 22.

[0040] A first drive rod 34 and a second drive rod 35 are fixedly installed on the two racks 33 respectively. A first drive component 36 is fixedly installed at the bottom of both the first drive rod 34 and the second drive rod 35. A second guide post 37 is fixedly installed on the body 1. A second return spring 38 is sleeved on the outer periphery of the second guide post 37. An L-shaped cover plate 39 is movably installed on the outer surface of the second guide post 37.

[0041] The first driving member 36 is triangular in shape, and the top of the L-shaped cover plate 39 is in active contact with the inclined surface of the first driving member 36.

[0042] The surface of the steam box 16 has a slot, and a baffle 8 is provided in front of the slot. The baffle 8 is hinged to the surface of the steam box 16.

[0043] The water tank 18 is provided with an arc-shaped step 4, and a guide frame 41 is fixedly installed on the arc-shaped step 4. A through groove 42 is provided on the top of the water tank 18.

[0044] Specifically, the machine body 1 is also equipped with several traveling wheels 11, a pair of preheating wheels 12, and a pair of annealing wheels 13. Copper wires 14 are connected to the traveling wheels 11, preheating wheels 12, and annealing wheels 13 for transmission. During the manufacturing of the traveling wheels 11, preheating wheels 12, and annealing wheels 13, transmission grooves can be opened on their surfaces to limit the movement of the copper wires 14 and ensure the stability of the transmission process. The specific transmission method is shown in the attached instruction manual. Figure 1 As shown, a second guide wheel 111 and a first guide wheel 19 are respectively installed in the inner cavity of the cooling pipe 17 and the water tank 18 to guide the copper wire 14, so that the copper wire 14 is in a low position in the cooling pipe 17 and the water tank 18, ensuring that it can be completely covered by the cooling water and fully cooled. A guide pipe 110 is also fixedly installed on the steam box 16 to connect to the steam pipe 25, so as to facilitate the introduction of steam in the steam box 16 into the steam pipe 25. The first gear roller 21 and the second gear roller 22 are composed of rotating rollers and gears fixedly installed at both ends of the rotating rollers. A servo motor 23 is also fixedly installed on the steam box 16. The output shaft of the servo motor 23 is fixedly connected to the second gear roller 22 to drive the second gear roller 22.

[0045] In existing equipment, before operation or during reconnection, the copper wire needs to be guided through the traveling wheel, preheating wheel, and annealing wheel before entering the steam pipe and cooling pipe. However, the steam pipe and cooling pipe are usually closed, making it difficult for operators to observe the traction process of the copper wire inside the pipe, and jamming is prone to occur. In this invention, when traction of the copper wire 14, the servo motor 23 can be started first to drive the second gear roller 22, causing the second gear roller 22 to drive the first gear roller 21 to rotate. This causes the first gear roller 21 to drive the toothed cover 26 to expose the steam pipe 25. The state changes of the steam pipe 25 can be referred to the appendix of the instruction manual. Figure 6 Included with instruction manual Figure 7 After the steam pipe 25 is exposed, the user can directly pull the copper wire 14 from the space exposed above the steam pipe 25. This makes it easier to pass the copper wire 14 through the steam pipe 25 and allows for direct interference, without the problem of difficulty in pulling due to jamming.

[0046] More specifically, after the copper wire 14 passes through the steam pipe 25, it is then passed through the guide pipe 110 into the steam box 16. When the copper wire 14 is connected to the annealing wheel 13 in the steam box 16, the baffle 8 can be opened for operation, making it convenient for the user to connect the copper wire 14 to the annealing wheel 13. The baffle 8 is closed when the steam box 16 is in operation to prevent excessive steam from escaping, and is opened during traction to assist the user in traction operation.

[0047] Furthermore, when the copper wire 14 passes through the steam box 16, it needs to be pulled into the cooling pipe 17. In this invention, when the servo motor 23 is started, it drives the second gear roller 22, which in turn drives the rack 33, causing the rack 33 to move downward. When the two racks 33 move downward, they can respectively drive the first drive rod 34 and the second drive rod 35 downward. The first drive rod 34 and the second drive rod 35 have different lengths and positions, so that the two first drive members 36 are respectively located on both sides of the L-shaped cover plate 39. When the first drive members 36 move downward, they drive the L-shaped cover plate 39, causing the L-shaped cover plate 39 to squeeze the second return spring 38, thereby moving and exposing the cooling pipe 17. In this way, the user can directly pull the copper wire 14 into the cooling pipe 17 through the second guide wheel 111. Similarly, when the cooling pipe 17 is exposed, the user can operate it directly. Compared with the traditional closed state, the pulling operation can be performed better.

[0048] Furthermore, when the copper wire 14 passes through the cooling pipe 17, it also needs to pass through the closed water tank 18. In this invention, when the copper wire 14 enters the water tank 18, it moves along the bottom of the inner cavity of the water tank 18, and is then guided by the arc-shaped step 4 to gradually move upward, thus entering the guide frame 41. The guide frame 41 gradually narrows from the bottom to the top, which can prevent the end of the copper wire 14 from moving arbitrarily and guide it to the through groove 42. At this point, the user can directly pull out the copper wire 14. For the positional relationship between the arc-shaped step 4 and the guide frame 41, please refer to the appendix of the instruction manual. Figure 8 Once the traction operation is completed, the servo motor 23 is started to reset the toothed cover 26. The L-shaped cover 39 will also be reset under the elastic force provided by the second reset spring 38, thus completing the closure of the pipeline.

[0049] In summary, compared to the problem of difficulty in pulling copper wires in traditional equipment, the copper wire pulling operation can be successfully completed in this invention through the structural design of the opening and closing components, steam box 16 and water box 18.

[0050] Example 2: Please refer to Figures 9 to 13 It also includes a first inspection component, which includes a first rotating shaft 5 disposed in the inner cavity of the steam box 16, and a first guide plate 51 fixedly installed with the first rotating shaft 5. A first cleaning component 52 is fixedly installed at one end of the first guide plate 51, and a gathering groove 53 is opened at the other end.

[0051] It also includes a second inspection component, which includes a second rotating shaft 6 disposed on the body 1 and a second guide plate 61 fixedly installed with the second rotating shaft 6. A mounting frame 62 is fixedly installed at one end of the second guide plate 61, and a rotating rod 63 is movably installed on the mounting frame 62. A limit member 64 and a second cleaning member 65 are fixedly installed on the outer surface of the rotating rod 63.

[0052] One end of the rotating rod 63 passes through the mounting frame 62 and extends to the outside of the mounting frame 62, and a nut 66 is threaded onto the surface of the outer part of the mounting frame 62.

[0053] It also includes a stop assembly, which includes a third guide post 7 arranged in a mirror image, and a third return spring 71 sleeved on the outer periphery of the third guide post 7. A stop member 72 is movably installed on the outer surface of the third guide post 7, and a second drive member 73 is fixedly installed on both sides of the second guide plate 61.

[0054] Both the stop component 72 and the second drive component 73 are wedge-shaped, and the inclination angles of the inclined surfaces are equal.

[0055] Specifically, before pulling the copper wire, the first rotating shaft 5 and the second rotating shaft 6 can be driven first, so that the first guide plate 51 and the second guide plate 61 are in a pulling state, as shown in the instruction manual. Figure 9As shown at points a and b, when the user pulls the copper wire 14, the second guide plate 61 guides the copper wire 14 into the steam pipe 25, and the first guide plate 51 guides the copper wire 14 into the left side of the annealing wheel 13 inside the steam box 16. This prevents the copper wire 14 from getting stuck between the annealing wheel 13 and the inner wall of the steam box 16 after entering the steam box 16, thus preventing pulling failure. (See attached instruction manual.) Figure 9 As shown at point c in the middle;

[0056] Furthermore, the oxide film formed on the surface of the copper wire before annealing will peel off and adhere to the annealing wheel during high-temperature annealing. In addition, the residual lubricant or drawing fluid of the copper wire decomposes at high temperature, and the resulting oily fumes will also adhere to the wheel surface, resulting in dirt on the surface of the annealing wheel. During annealing, this dirt can easily cause the copper wire to skip during transmission, resulting in arcing, damaging the copper wire, and even causing wire breakage. In this invention, before the traction operation, the first rotating shaft 5 and the second rotating shaft 6 can be activated to bring the first cleaning component 52 and the second cleaning component 65 into contact with the annealing wheel 13. The surface of the annealing wheel 13 is cleaned with a cleaning agent to prevent dirt from affecting the annealing operation. The second cleaning component 65 and the limiting component 64 can be replaced and locked with the nut 66. After cleaning, by rotating the rotating rod 63, the second cleaning component 65 is moved away from the annealing wheel 13, and the limiting component 64 is moved closer to the annealing wheel 13, as shown in the attached instruction manual. Figure 12 As shown, the limiting component 64 can limit the copper wire 14, reducing the probability of jumper.

[0057] Furthermore, in traditional equipment, when a wire breakage occurs, the traveling wheel, preheating wheel, annealing wheel, and traction device will stop abruptly. However, the copper wire will continue to move due to transmission inertia, which can easily lead to malfunctions. In this invention, an identification camera 15 is also installed at the annealing wheel 13 and the water tank 18. The identification camera 15 identifies the transmission status of the copper wire 14 and transmits a signal to the drive device of the second rotating shaft 6. During normal operation, the second drive component 73 is in contact with the stop component 72, and the copper wire 14 is positioned between the two stop components 72, as shown in the attached specification. Figure 13As shown, after the wire breakage signal is transmitted, the second rotating shaft 6 will drive the second guide plate 61 to continue rotating, causing the second driving member 73 to move further upward and drive the stop member 72, so that the two stop members 72 clamp the copper wire 14. At the same time, when the second guide plate 61 rotates, the limiting member 64 will also clamp the copper wire 14 driven on the annealing wheel 13, preventing the copper wire 14 from continuing to move under the influence of transmission inertia and causing copper wire disorder. It should be noted that a protrusion is provided at the connection between the stop member 72 and the third guide post 7, and a sliding groove is provided on the third guide post 7 to guide the stop member 72 and prevent the stop member 72 from rotating. In addition, in this invention, the driving of the traveling wheel 11, the preheating wheel 12, the annealing wheel 13, the first rotating shaft 5 and the second rotating shaft 6 are all driven by the motor inside the machine body 1. This is the prior art and will not be described in detail here.

[0058] 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 welding strip annealing processing equipment, comprising a machine body (1), a steam box (16), a cooling pipe (17) and a water tank (18) are arranged on the machine body (1), characterized in that: It also comprises an opening and closing assembly, which comprises a first opening and closing module and a second opening and closing module, the first opening and closing module comprises a fixed frame (2) fixedly installed on the machine body (1), a first gear roller (21) and a second gear roller (22) are movably installed on the fixed frame (2), and the first gear roller (21) and the second gear roller (22) are meshed with each other; A fixed plate (24) is fixedly installed on the machine body (1), a steam pipe (25) is fixedly installed on the fixed plate (24), a toothed cover (26) is movably installed on the outer surface of the steam pipe (25), and the toothed cover (26) is meshed with the first gear roller (21).

2. The photovoltaic bussing annealing apparatus of claim 1, wherein: The second opening and closing module comprises mounting plates (3) on both sides below the steam pipe (25), and the mounting plates (3) are fixedly installed on the machine body (1), a first guide column (31) is fixedly installed on the mounting plate (3), a first reset spring (32) is sleeved on the outer circumferential side of the first guide column (31), a rack (33) is movably installed on the outer surface of the first guide column (31), and the rack (33) is meshed with the second gear roller (22); First drive rods (34) and second drive rods (35) are fixedly installed on the two racks (33) respectively, first driving members (36) are fixedly installed at the bottom of the first drive rods (34) and the second drive rods (35), a second guide column (37) is fixedly installed on the machine body (1), a second reset spring (38) is sleeved on the outer circumferential side of the second guide column (37), and an L-shaped cover plate (39) is movably installed on the outer surface of the second guide column (37).

3. The photovoltaic bussing annealing apparatus of claim 2, wherein: The first driving member (36) is triangular, and the top of the L-shaped cover plate (39) is movably contacted with the inclined surface of the first driving member (36).

4. The photovoltaic bussing annealing apparatus of claim 1, wherein: A notch is formed on the surface of the steam box (16), and a baffle (8) is arranged in front of the notch, and the baffle (8) is hinged on the surface of the steam box (16).

5. The photovoltaic bussing annealing apparatus of claim 1, wherein: An arc-shaped step (4) is arranged in the water tank (18), a guide frame (41) is fixedly installed on the arc-shaped step (4), and a through groove (42) is formed on the top of the water tank (18).

6. The photovoltaic bussing annealing apparatus of claim 1, wherein: It also comprises a first inspection assembly, which comprises a first rotating shaft (5) arranged in the inner cavity of the steam box (16), and a first guide plate (51) fixedly installed on the first rotating shaft (5), one end of the first guide plate (51) is fixedly installed with a first cleaning member (52), and the other end is provided with a converging groove (53).

7. The photovoltaic bussing annealing apparatus of claim 1, wherein: It also comprises a second inspection assembly, which comprises a second rotating shaft (6) arranged on the machine body (1), and a second guide plate (61) fixedly installed on the second rotating shaft (6), one end of the second guide plate (61) is fixedly installed with a mounting frame (62), a rotating rod (63) is movably installed on the mounting frame (62), a limiting member (64) and a second cleaning member (65) are fixedly installed on the outer surface of the rotating rod (63).

8. The photovoltaic bussing annealing apparatus of claim 7, wherein: One end of the rotating rod (63) penetrates through the mounting frame (62) and extends to the outside of the mounting frame (62), and the surface of the outside part of the mounting frame (62) is threadedly connected with a nut (66).

9. The photovoltaic bussing annealing apparatus of claim 7, wherein: Further comprising a stop component, which comprises a third guide column (7) arranged in mirror image, and a third reset spring (71) sleeved on the outer circumferential side of the third guide column (7), the outer surface of the third guide column (7) movably mounting a stop piece (72), and the two sides of the second guide plate (61) respectively fixedly mounting a second driving piece (73).

10. The photovoltaic bussing annealing apparatus of claim 9, wherein: The stop piece (72) and the second driving piece (73) are both wedge-shaped, and the inclination angles of the inclined surfaces are equal.

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