Solder strip flattening mechanism

Abstract

The utility model discloses a solder strip flattening mechanism, which relates to the technical field of series welding of photovoltaic modules, and comprises a rack and a flattening base, the rack is positioned above the flattening base, a plurality of first cylinders are hinged on the rack, output shafts of the first cylinders face downwards, the output shafts of the first cylinders are rotatably connected with first connecting rods, and the first connecting rods are connected with the flattening base. The first connecting rod is connected with a vertically-arranged first positioning rod and a vertically-arranged first pressing head, the first pressing head is used for flattening a welding strip, and the rack is provided with a through hole allowing the first pressing head to penetrate through. Power is provided through the first air cylinder, the first connecting rod is used for transmission, the first pressing head is controlled to press downwards to flatten the welding strip, the adjustability of the first pressing head is higher, and the welding strip is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module string welding technology, and in particular to a welding strip flattening mechanism. Background Technology

[0002] In the production of photovoltaic modules, solder ribbons connect the solar cells together. Because the solar cells are thin and brittle, the cells are easily damaged by compression during the solder ribbon connection process. Therefore, flattening the solder ribbons is an essential step in photovoltaic module production.

[0003] The relevant technical solution involves using a cylinder to apply pressure vertically downwards from above to flatten the welding strip. However, this method makes it difficult to adjust the pressure applied by the cylinder. If the applied pressure is too high, it can easily damage the welding strip, causing it to break and resulting in a low yield rate.

[0004] Therefore, this application aims to provide a strip flattening mechanism to solve the technical problems in the prior art. Utility Model Content

[0005] In order to make the pressure applied by the cylinder more adjustable during the flattening of the welding strip and improve the yield of the welding strip, this application provides a welding strip flattening mechanism.

[0006] The welding strip flattening mechanism provided in this application adopts the following technical solution:

[0007] A strip flattening mechanism includes a frame.

[0008] A flattened base, with the frame located above the flattened base.

[0009] Several first cylinders are hinged to the frame, with the output shafts of the first cylinders facing downwards.

[0010] The output shaft of the first cylinder is rotatably connected to a first connecting rod.

[0011] The first connecting rod connects a vertically positioned first positioning rod and a vertically positioned first pressure head, the first pressure head being used to flatten the welding strip.

[0012] The frame has a through hole through which the first pressure head passes.

[0013] Optionally, a pressing platform is provided on the side of the flattening base near the frame, the pressing platform is provided with an inclined surface in the length direction, and a groove adapted to the pressing platform is provided on the side of the pressing platform near the flattening base.

[0014] Optionally, the flattening base has a recessed groove on the side near the frame along the perimeter of the pressing platform.

[0015] Optionally, the frame is also hinged with a plurality of second cylinders, which are staggered with the first cylinders. The output shafts of the second cylinders face downwards. The output shafts of the second cylinders are rotatably connected to a second connecting rod. The second connecting rods are symmetrically arranged with the first connecting rods. The second connecting rods are connected to a vertically arranged second positioning rod and a vertically arranged second pressure head. The second pressure head is arranged side by side with the first pressure head. The side of the second pressure head near the flattening base has a groove that matches the pressure table.

[0016] Optionally, the first pressure head includes a first pressure head body, a first limiting rod, and a first connecting rod. The first limiting rod is vertically arranged. One end of the first connecting rod is hinged to the first connecting rod, and the other end of the first connecting rod is hinged to the first limiting rod. The first pressure head body has a first limiting groove for the first limiting rod to be inserted into. The first pressure head body has a first positioning hole. The first limiting rod has a first connecting hole that matches the first positioning hole. The first pressure head body is movably connected to a first positioning pin, which passes through the first positioning hole and the first connecting hole in sequence.

[0017] Optionally, a guide plate is provided on one side of the flattened base, the guide plate has a guide groove for the welding strip to pass through, and a cover plate is movably provided on the top of the guide plate.

[0018] Optionally, the second pressure head includes a second pressure head body, a second limiting rod, and a second connecting rod. The second limiting rod is vertically arranged. One end of the second connecting rod is hinged to the second connecting rod, and the other end of the second connecting rod is hinged to the second limiting rod. The second pressure head body has a second limiting groove for the second limiting rod to be inserted into. The second pressure head body has a second positioning hole. The second limiting rod has a second connecting hole that matches the second positioning hole. The second pressure head body is movably connected to a second positioning pin, which passes through the second positioning hole and the second connecting hole in sequence.

[0019] Optionally, the frame is rotatably mounted above the flattened base, and the flattened base is further provided with a shaft clamp for positioning the frame.

[0020] In summary, this application includes at least the following beneficial effects:

[0021] 1. Power is provided by the first cylinder. Under the limiting action of the first limit rod, the first connecting rod transmits the power of the first cylinder to the first pressure head. The first connecting rod drives the first pressure head downward. Compared with the straight up and down pressing method of the cylinder, the pressing length of the first pressure head is less for the same stroke length of the first cylinder. The pressing force is more adjustable, making the welding strip flattening mechanism less likely to damage the welding strip and improving the yield of the welding strip.

[0022] 2. Power is provided by the second cylinder. Under the action of the fiber of the second limit rod, the second connecting rod transmits the power of the second cylinder to the second pressure head. The second connecting rod drives the second pressure head downward. Compared with the straight up and down pressing method of the cylinder, this pressing method has higher adjustable pressure. The welding strip flattening mechanism is less likely to damage the welding strip and improves the yield of welding strip.

[0023] 3. The first and second cylinders are staggered and symmetrically arranged on the frame, maximizing the use of the frame space, so that several first and second pressure heads are arranged above the pressure table to apply pressure to the welding strip. Attached Figure Description

[0024] Figure 1 This is a perspective view of a welding strip flattening mechanism provided in this application;

[0025] Figure 2 This is a schematic diagram of the structure of a welding strip flattening mechanism frame after it is opened, as provided in this application;

[0026] Figure 3 This is a partially enlarged schematic diagram of the pressure head and pressure table in this application;

[0027] Figure 4 This is an explosion diagram of the first and second pressure heads in this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Flattened base; 3. First cylinder; 4. First connecting rod; 5. First positioning rod; 6. Second pressure head body; 7. Pressure table; 8. Inclined surface; 9. Groove; 10. Sinking groove; 11. Second cylinder; 12. Second connecting rod; 13. Second positioning rod; 14. Shaft clamp; 15. First pressure head body; 16. First limiting rod; 17. First connecting rod; 18. First limiting groove; 19. First positioning hole; 20. First connecting hole; 21. First positioning pin; 22. Guide plate; 23. Cover plate; 24. Second limiting rod; 25. Second connecting rod; 26. Second limiting groove; 27. Second positioning hole; 28. Second connecting hole; 29. ​​Second positioning pin. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0031] 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 at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In utility models, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] Reference Figure 1 The welding strip flattening mechanism includes a flattening base 2, on which a frame 1 is rotatably mounted. The flattening base 2 also has a shaft clamp 14 for fixing the frame 1. Several vertically mounted first cylinders 3 and second cylinders 11 with their output shafts facing downwards are hinged to the frame 1. The first cylinders 3 and 11 are symmetrically and staggered. The first cylinders 3 are driven by a first pressure head to control its downward movement, and the second cylinders 11 are driven by a second pressure head to control its downward movement. The first and second pressure heads are arranged in a straight line. The first and second pressure heads are used to flatten the welding strip. The frame 1 has through holes for the first and second pressure heads to pass through. A guide plate 22 for guiding the welding strip is also provided on one side of the flattening base 2. The guide plate 22 has a guide groove for the welding strip to pass through, and a cover plate 23 is movably mounted on the guide plate 22. The welding strip passes sequentially above the flattening base 2 and above the guide plate 22.

[0037] Reference Figure 2 and Figure 3 The upper surface of the flattening base 2 is provided with a pressure platform 7. The first pressure head and the second pressure head pass through the frame 1 and act on the pressure platform 7. The pressure platform 7 is provided with an inclined surface 8 along its length. The bottom of the first pressure head and the second pressure head are provided with grooves 9 that are adapted to the pressure platform 7. The upper surface of the flattening base 2 is provided with a recessed groove 10 around the pressure platform 7 to further adapt to the grooves 9 at the bottom of the first pressure head and the second pressure head. By increasing the inclined surface in this way, the contact angle between the pressure platform 7 and the welding strip is increased. Compared with the right-angle contact, it is not easy to damage the welding strip.

[0038] Specifically, refer to Figure 2 and Figure 4The output shaft of the first cylinder 3 is rotatably connected to the first connecting rod 4. The first connecting rod 4 is connected to the vertically arranged first positioning rod 5 and the vertically arranged first pressure head. The first pressure head is close to the center of the frame 1 relative to the first positioning rod 5. The frame 1 is provided with a first positioning groove (not shown in the figure) for fixing the first positioning rod 5. The output shaft of the second cylinder 11 is rotatably connected to the second connecting rod 12. The second connecting rod 12 is symmetrically arranged with the first connecting rod 4. The second connecting rod 12 is connected to the vertically arranged second positioning rod 13 and the vertically arranged second pressure head. The second pressure head is close to the center of the frame 1 relative to the second positioning rod 13. The frame 1 is provided with a second positioning groove (not shown in the figure) for fixing the second positioning rod 13.

[0039] Reference Figure 4 The first pressure head includes a first pressure head body 15, a first limiting rod 16, and a first connecting rod 17. The first limiting rod 16 is vertically arranged. One end of the first connecting rod 17 is hinged to the first connecting rod 4, and the other end of the first connecting rod 17 is hinged to the first limiting rod 16. The first pressure head body 15 has a first limiting groove 18 for the first limiting rod 16 to be inserted into. The first pressure head body 15 has a first positioning hole 19. The first limiting rod 16 has a first connecting hole 20 that matches the first positioning hole 19. The first pressure head body 15 is movably connected to a first positioning pin 21, which passes through the first positioning hole 19 and the first connecting hole 20 in sequence. 0. The second pressure head includes a second pressure head body 6, a second limiting rod 24, and a second connecting rod 25. The second limiting rod 24 is vertically arranged. One end of the second connecting rod 25 is hinged to the second connecting rod 12, and the other end of the second connecting rod 25 is hinged to the second limiting rod 24. The second pressure head body 6 has a second limiting groove 26 for the second limiting rod 24 to be inserted. The second pressure head body 6 has a second positioning hole 27. The second limiting rod 24 has a second connecting hole 28 that matches the second positioning hole 27. The second pressure head body 6 is movably connected to a second positioning pin 29, which passes through the second positioning hole 27 and the second connecting hole 28 in sequence. In this application, the first connecting rod 4 and the second connecting rod 12 are arranged in an L-shape. Since the first positioning rod 5 is fixed relative to the frame 1, the first connecting rod 4 rotates, and the middle part of the first connecting rod 4 moves downward, thereby driving the first pressure head body 15 to press downward. Compared with the method of directly pressing down with a cylinder, the cylinder moves a larger range, and the first pressure head will only move downward a certain distance, making the first pressure head more adjustable. It is not easy to damage the welding strip during the flattening process, thus improving the yield of the welding strip. The second pressure head moves on the same principle as the first pressure head, and will not be described in detail in this application. In addition, this application maximizes the use of the space of the frame 1 by staggering and symmetrically arranging the first cylinder 3 and the second cylinder 11 on the frame 1.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A solder strip flattening mechanism characterized by, Include frame, The frame is located above the flattening base, A plurality of first air cylinders are hinged on the frame, the output shaft of the first air cylinder is downward, The output shaft of the first air cylinder is rotatably connected with a first connecting rod, The first connecting rod is connected with a vertically arranged first positioning rod and a vertically arranged first pressing head, and the first pressing head is used for flattening the welding strip, The frame is provided with a through hole for the first pressing head to pass through.

2. A solder strip flattening mechanism according to claim 1, characterized in that: The flattening base is provided with a pressing table near one side of the frame, the pressing table is provided with an inclined surface in the length direction, and the first pressing head is provided with a groove matched with the pressing table near one side of the flattening base.

3. A solder strip flattening mechanism according to claim 2, wherein: The flattening base is provided with a sunken groove along the periphery of the pressing table near one side of the frame.

4. A flattened strip mechanism according to claim 2, wherein: A plurality of second air cylinders are also hinged on the frame, the second air cylinder is arranged opposite to the first air cylinder, the output shaft of the second air cylinder is downward, the output shaft of the second air cylinder is rotatably connected with a second connecting rod, the second connecting rod is arranged symmetrically with the first connecting rod, the second connecting rod is connected with a vertically arranged second positioning rod and a vertically arranged second pressing head, the second pressing head is arranged side by side with the first pressing head, and the second pressing head is provided with a groove matched with the pressing table near one side of the flattening base.

5. A flattened strip mechanism according to claim 1, characterized in that: The first pressing head comprises a first pressing head body, a first limiting rod and a first connecting rod, the first limiting rod is vertically arranged, one end of the first connecting rod is hinged with the first connecting rod, the other end of the first connecting rod is hinged with the first limiting rod, the first pressing head body is provided with a first limiting slot for inserting the first limiting rod, the first pressing head body is provided with a first positioning hole, the first limiting rod is provided with a first connecting hole matched with the first positioning hole, and the first pressing head body is movably connected with a first positioning pin, the first positioning pin passes through the first positioning hole and the first connecting hole in sequence.

6. A flattened strip mechanism according to claim 1, characterized in that: One side of the flattening base is also provided with a guide plate, the guide plate is provided with a guide groove for the welding strip to pass through, and the top of the guide plate is movably provided with a cover plate.

7. A flattened strip mechanism according to claim 4, characterized in that: The second pressing head comprises a second pressing head body, a second limiting rod and a second connecting rod, the second limiting rod is vertically arranged, one end of the second connecting rod is hinged with the second connecting rod, the other end of the second connecting rod is hinged with the second limiting rod, the second pressing head body is provided with a second limiting slot for inserting the second limiting rod, the second pressing head body is provided with a second positioning hole, the second limiting rod is provided with a second connecting hole matched with the second positioning hole, and the second pressing head body is movably connected with a second positioning pin, the second positioning pin passes through the second positioning hole and the second connecting hole in sequence.

8. A flattened strip mechanism according to claim 1, characterized in that: The frame is rotatably arranged above the flattening base, and the flattening base is also provided with a shaft clamp for positioning the frame.

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