A solder strip bending and flattening device

Abstract

The utility model discloses a kind of welding strip bending and flattening device, including pressure assembly and bearing assembly, pressure assembly includes first driving part, first upper die, second driving part and second upper die, first driving part is connected with first upper die, second driving part is connected with second upper die;Bearing assembly includes third driving part, first lower die and second lower die, third driving part is connected with first lower die, first driving part can drive first upper die to move towards first lower die, second driving part can drive second lower die to move towards second lower die, third driving part can drive first lower die to move towards first upper die, and first lower die and second lower die are dislocated. By flattening photovoltaic welding strip, so that cell piece and photovoltaic welding strip are surface contact, reduce the risk of edge hidden crack fragment of cell piece in laminating process.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic module production, specifically to a welding strip bending and flattening device. Background Technology

[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, typically has a circular cross-section. In photovoltaic cell production, photovoltaic solder ribbon is used to weld multiple cells together. The quality of the photovoltaic solder ribbon directly affects the current collection efficiency of the photovoltaic module.

[0003] In the photovoltaic cell production process, in order to reduce the spacing between multiple cells, multiple cells need to be laminated. However, when multiple cells are laminated, because the cross-section of the photovoltaic ribbon is circular, the cells and the photovoltaic ribbon are in line contact. This means that the cells are subjected to pressure from a single line of the photovoltaic ribbon, which increases the risk of microcracks and fragmentation of the cells. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that in the prior art, when multiple solar cells are laminated, the solar cell and the photovoltaic ribbon are in line contact because the cross-section of the photovoltaic ribbon is circular. This means that the solar cell is subjected to pressure from a single line of the photovoltaic ribbon, which increases the risk of microcracks and fragmentation of the solar cell.

[0005] Therefore, this utility model provides a welding strip bending and flattening device, comprising:

[0006] A pressure application assembly, comprising a first driving member, a first upper mold, a second driving member, and a second upper mold, wherein the first driving member is connected to the first upper mold, and the second driving member is connected to the second upper mold;

[0007] A support assembly, the support assembly including a third driving component, a first lower mold and a second lower mold, the third driving component being connected to the first lower mold;

[0008] The first driving component can drive the first upper mold to move toward the first lower mold, and the second driving component can drive the second upper mold to move toward the second lower mold;

[0009] The third driving component can drive the first lower mold to move toward the first upper mold, and cause the first lower mold and the second lower mold to be misaligned.

[0010] In some embodiments, the first driving member includes: a first mounting base having a first mounting cavity having a first opening; a first support member having a first connecting portion and a second connecting portion, the first connecting portion being slidably connected to the inner wall of the first mounting cavity, and the first connecting portion and a portion of the inner wall of the first mounting cavity forming a first receiving cavity, the first receiving cavity communicating with the first opening, and the second connecting portion being fixedly connected to the first upper mold.

[0011] In some embodiments, the first driving member further includes: a first biasing member, one end of which is fixedly connected to the inner wall of the first mounting cavity, and the other end of which is fixedly connected to the first connecting portion; and a first limiting member, which is located within the first receiving cavity and is fixedly connected to the inner wall of the first mounting cavity, and is used to limit the first connecting portion.

[0012] In some embodiments, the second driving member includes: a second mounting base adapted to be fixedly connected to the first mounting base, and the second mounting base having a second mounting cavity with a second opening; a second support member having a third connecting portion and a fourth connecting portion, the third connecting portion being slidably connected to the inner wall of the second mounting cavity, and the third connecting portion and a portion of the inner wall of the second mounting cavity forming a second receiving cavity, the second receiving cavity communicating with the second opening, and the fourth connecting portion being fixedly connected to the second upper mold.

[0013] In some embodiments, the second driving member further includes: a second biasing member, one end of which is fixedly connected to the inner wall of the second mounting cavity, and the other end of which is fixedly connected to the third connecting portion; and a second limiting member, which is located within the second receiving cavity and is fixedly connected to the inner wall of the second mounting cavity, and is used to limit the third connecting portion.

[0014] In some embodiments, the third driving member includes: a third mounting base having a third mounting cavity with a third opening; and a third support member having a fifth connecting portion and a sixth connecting portion, the fifth connecting portion being slidably connected to the inner wall of the third mounting cavity, and the fifth connecting portion and a portion of the inner wall of the third mounting cavity forming a third receiving cavity, the third receiving cavity communicating with the third opening, and the sixth connecting portion being fixedly connected to the first lower mold.

[0015] In some embodiments, the third driving member further includes: a third biasing member, one end of which is fixedly connected to the inner wall of the third mounting cavity, and the other end of which is fixedly connected to the fifth connecting portion; and a third limiting member, which is located within the third receiving cavity and is fixedly connected to the inner wall of the third mounting cavity, and is used to limit the fifth connecting portion.

[0016] In some embodiments, the supporting assembly further includes: a fourth mounting base adapted to be fixedly connected to the third mounting base, the fourth mounting base having a fourth mounting cavity with a fourth opening; and a fourth support member having a seventh connecting portion and an eighth connecting portion, the seventh connecting portion being slidably connected to the inner wall of the fourth mounting cavity, and the seventh connecting portion and a portion of the inner wall of the fourth mounting cavity forming a fourth receiving cavity, the fourth receiving cavity communicating with the fourth opening, and the eighth connecting portion being fixedly connected to the first lower mold.

[0017] In some embodiments, the bearing assembly further includes: a fourth biasing member, one end of which is fixedly connected to the inner wall of the fourth mounting cavity, and the other end of which is fixedly connected to the seventh connecting portion; and a fourth limiting member, which is located within the fourth receiving cavity and is fixedly connected to the inner wall of the fourth mounting cavity, and is used to limit the seventh connecting portion.

[0018] The technical solution provided by this utility model has the following advantages:

[0019] 1. The welding strip bending and flattening device provided by this utility model includes a pressure application component and a bearing component. The pressure application component includes a first driving member, a first upper mold, a second driving member, and a second upper mold. The first driving member is connected to the first upper mold, and the second driving member is connected to the second upper mold. The bearing component includes a third driving member, a first lower mold, and a second lower mold. The third driving member is connected to the first lower mold. The first driving member can drive the first upper mold to move toward the first lower mold, the second driving member can drive the second upper mold to move toward the second lower mold, and the third driving member can drive the first lower mold to move toward the first upper mold, thereby causing the first lower mold and the second lower mold to be misaligned. A third driving component moves the first lower mold, aligning it with the second lower mold, and places the circular photovoltaic ribbon inside both molds. Then, the first driving component moves the first upper mold, aligning it with the second upper mold. Simultaneously, the first and second driving components move the first upper mold towards the first lower mold, and the second upper mold towards the first lower mold, until the distance between the first and second upper molds reaches their rated values. At this point, the circular ribbon is flattened. The third driving component then moves the first lower mold away from the first upper mold, misaligning it with the second lower mold, until the first lower mold reaches its designated position. The first driving component then moves the first upper mold towards the first lower mold, bending the flattened photovoltaic ribbon. Flattening the photovoltaic ribbon ensures surface contact between the solar cell and the ribbon, reducing the risk of edge cracking and breakage during lamination.

[0020] 2. The welding strip bending and flattening device provided by this utility model can both flatten and bend photovoltaic welding strips without the need to use flattening machines and bending machines separately, thus saving production time and improving production efficiency.

[0021] 3. The welding strip bending and flattening device provided by this utility model can flatten the photovoltaic welding strip to a smaller thickness, thereby reducing the spacing between multiple solar cells and enabling photovoltaic cells of the same volume to have higher power. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1A schematic diagram of the welding strip bending and flattening device provided by this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the welding strip bending and flattening device from another perspective;

[0025] Figure 3 for Figure 1 A schematic diagram of the welding strip bending and flattening device during bending operations;

[0026] Figure 4 For being Figure 1 The photovoltaic welding strip is bent and flattened by the welding strip bending and flattening device.

[0027] Explanation of reference numerals in the attached figures:

[0028] 11-First driving component; 111-First mounting base; 112-First opening; 113-First support component; 114-First biasing component; 115-First limiting component; 116-First receiving cavity; 12-First upper mold;

[0029] 13-Second driving component; 131-Second mounting base; 132-Second opening; 133-Second support component; 134-Second biasing component; 135-Second limiting component; 136-Second receiving cavity; 14-Second upper mold;

[0030] 21-Third driving component; 211-Third mounting base; 212-Third opening; 213-Third support component; 214-Third biasing component; 215-Third limiting component; 216-Third receiving cavity; 22-First lower mold;

[0031] 23-Second lower mold; 24-Fourth mounting base; 25-Fourth opening; 26-Fourth support; 27-Fourth biasing component; 28-Fourth limiting component; 29-Fourth receiving cavity; 3-Photovoltaic welding strip. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figures 1 to 4 As shown, this embodiment provides a welding strip bending and flattening device, which includes a pressure application component and a bearing component. The pressure application component includes a first driving member 11, a first upper mold 12, a second driving member 13, and a second upper mold 14. The first driving member 11 is connected to the first upper mold 12, and the second driving member 13 is connected to the second upper mold 14. The bearing component includes a third driving member 21, a first lower mold 22, and a second lower mold 23. The third driving member 21 is connected to the first lower mold 22. The first driving member 11 can drive the first upper mold 12 to move toward the first lower mold 22, the second driving member 13 can drive the second upper mold 14 to move toward the second lower mold 23, and the third driving member 21 can drive the first lower mold 22 to move toward the first upper mold 12, thereby causing the first lower mold 22 and the second lower mold 23 to be misaligned.

[0037] The welding strip bending and flattening device provided in this embodiment uses a third driving member 21 to move the first lower mold 22, making the first lower mold 22 flush with the second lower mold 23, and placing the circular photovoltaic welding strip 3 into the first and second molds. Then, the first driving member 11 moves the first upper mold 12, making the first upper mold 12 flush with the second upper mold 14. At this time, the first driving member 11 and the second driving member 13 work simultaneously, causing the first upper mold 12 to move toward the first lower mold 22, and the second upper mold 14 to move toward the first lower mold 22. The process continues until the distance between the first upper mold 12 and the first lower mold 22, and the distance between the second upper mold 14 and the second lower mold 23, reaches the rated value. At this point, the circular cross-section welding strip is flattened. Then, the third driving component 21 drives the first lower mold 22 to move away from the first upper mold 12, i.e., the first lower mold 22 and the second lower mold 23 are misaligned, until the first lower mold 22 moves to the designated position. At this time, the first driving component 11 works, causing the first upper mold 12 to move towards the first lower mold 22 and bend the flat photovoltaic welding strip 3. By pressing the photovoltaic welding strip 3, the solar cell and the photovoltaic welding strip 3 are in surface contact, reducing the risk of edge microcracks and breakage of the solar cell during the lamination process.

[0038] like Figure 1 and Figure 2 As shown, the welding strip bending and flattening device provided in this embodiment includes a first driving member 11, a first mounting base 111, a first support member 113, two first biasing members 114, and two first limiting members 115. The first mounting base 111 is a rectangular shell, which encloses a first mounting cavity, and the top of the first mounting cavity has a first opening 112. The first support member 113 is integrally formed from a horizontal plate and a vertical plate, and the cross-section of the horizontal plate is larger than that of the vertical plate. Figure 1Taking the perspective of [example], the vertical plate is located at the bottom of the horizontal plate, and the right side of the vertical plate is flush with the right side of the horizontal plate. The first connecting part is the horizontal plate, and the second connecting part is the vertical plate. The first connecting part is located in the first mounting cavity and is slidably connected to the inner wall of the first mounting cavity. The first connecting part divides the first mounting cavity into a first receiving cavity 116 and a first telescopic cavity. The first receiving cavity 116 is located at the upper part of the first telescopic cavity. Part of the second connecting part is located in the first telescopic cavity, and the other part of the second connecting part extends out of the first telescopic cavity. The lower end of the second connecting part extending out of the first telescopic cavity is connected by a bolt. The first upper mold 12 is fixedly connected to the first biasing member 114, which is a spring. One end of the first biasing member 114 is welded and fixed to the bottom of the first connecting part, and the other end of the first biasing member 114 is welded and fixed to the bottom of the inner wall of the first mounting cavity. The two first biasing members 114 are located on both sides of the bottom of the first connecting part. The first limiting member 115 is a rectangular block. One of the first limiting members 115 is welded and fixed to the left side of the inner wall of the first mounting cavity, and the other first limiting member 115 is symmetrically arranged on the right side of the inner wall of the first mounting cavity. The height of the first limiting member 115 inside the first mounting cavity is greater than the height of the first connecting part. The air supply device is connected to the first opening 112 through a pipe. By continuously and uniformly supplying air into the first receiving cavity 116, the first upper mold 12 can be moved downward.

[0039] like Figure 1 and Figure 2 As shown, the welding strip bending and flattening device provided in this embodiment includes a second driving member 13 comprising a second mounting base 131, a second support member 133, a second biasing member 134, and a second limiting member 135. The second mounting base 131 has the same structure and dimensions as the first mounting base 111. The second mounting base 131 is also a rectangular shell, and the second mounting base 131 encloses and forms a second mounting cavity. A second opening 132 is provided at the top of the second mounting cavity to allow for... Figure 1Taking the perspective of [the first mounting base 111] as an example, the right side of the first mounting base 111 and the left side of the second mounting base 131 are fixed by welding. The first mounting base 111 and the second mounting base 131 are suitable for being fixed to the wall by bolts. The second support member 133 has the same structure and size as the first support member 113. The second support member 133 has a third connecting part and a fourth connecting part. The third connecting part is slidably connected to the inner wall of the second mounting cavity. The third connecting part divides the second mounting cavity into a second receiving cavity 136 and a second telescopic cavity. The second receiving cavity 136 is located at the upper part of the second telescopic cavity and communicates with the second opening 132. The top of the fourth connecting part is connected to the bottom of the third connecting part. The bottom of the fourth connecting part extends out of the second telescopic cavity, and the lower end of the fourth connecting part extending out of the second telescopic cavity is fixedly connected to the second upper mold 14 by bolts. The second biasing component 134 is also a spring, and its installation position is similar to that of the first biasing component 114. One end of the second biasing component 134 is welded and fixed to the top of the third connecting part, and the other end of the second biasing component 134 is welded and fixed to the bottom of the inner wall of the second mounting cavity. The two second biasing components 134 are located on both sides of the bottom of the third connecting part. The structure, size, and installation position of the second limiting component 135 are similar to those of the first limiting component 115. One of the second limiting components 135 is welded and fixed to the left side of the inner wall of the second mounting cavity, and the other second limiting component 135 is symmetrically arranged on the right side of the inner wall of the second mounting cavity. The height of the second limiting component 135 inside the second mounting cavity is greater than the height of the third connecting part. By connecting the air supply device to the second opening 132 through a pipe, and continuously and uniformly supplying air to the first receiving cavity 116, the first upper mold 12 can be moved downward.

[0040] like Figure 1 and Figure 2As shown, the welding strip bending and flattening device provided in this embodiment includes a third driving component 21 comprising a third mounting base 211, a third support component 213, two third biasing components 214, and two third limiting components 215. The third mounting base 211 is structurally similar to the first mounting base 111, but its size is smaller than that of the first mounting base 111. The third mounting base 211 is located directly below the first mounting base 111 and is also a rectangular shell. The third mounting base 211 encloses and forms a third mounting cavity, with a third opening 212 at the bottom. The third support component 213 is similar in structure and installation position to the first support component 113. The third support component 213 has a fifth connecting portion and a sixth connecting portion. The fifth connecting portion is slidably connected to the inner wall of the first mounting cavity, dividing the third mounting cavity into sections. The spacer is divided into a third receiving cavity 216 and a third telescopic cavity. The third receiving cavity 216 is located above the third telescopic cavity. The sixth connecting part extending out of the third telescopic cavity is fixedly connected to the first lower mold 22 by bolts. The third biasing member 214 is a spring. One end of the third biasing member 214 is welded and fixed to the top of the fifth connecting part, and the other end of the third biasing member 214 is welded and fixed to the bottom of the inner wall of the third mounting cavity. The two third biasing members 214 are located on both sides of the top of the fifth connecting part. The third limiting member 215 is similar to the first limiting member 115 in structure, installation position, and size. One of the third limiting members 215 is welded and fixed to the left side of the inner wall of the third mounting cavity, and the other third limiting member 215 is symmetrically arranged on the right side of the inner wall of the third mounting cavity. The height of the third limiting member 215 inside the third mounting cavity is greater than the height of the fifth connecting part. By connecting the air supply device to the third opening 212 through a pipe, and continuously and uniformly supplying air to the third receiving cavity 216, the first lower mold 22 can be moved upward.

[0041] like Figure 1 and Figure 2 As shown, the welding strip bending and flattening device provided in this embodiment further includes a fourth mounting base 24, a fourth support member 26, a fourth biasing member 27, and a fourth limiting member 28 in its load-bearing components. The fourth mounting base 24 has the same structure as the first mounting base 111, and is also a rectangular shell. The fourth mounting base 24 encloses and forms a fourth mounting cavity, and the top of the fourth mounting cavity has a fourth opening 25 for... Figure 1Taking the perspective of the second mounting base 131 as an example, the right side of the fourth mounting base 24 and the left side of the third mounting base 211 are fixed by welding. The fourth mounting base 24 and the third mounting base 211 are suitable for being fixed to the wall by bolts. The fourth mounting base 24 is located directly below the second mounting base 131. The fourth support member 26 has the same structure and size as the third support member 213. The fourth support member 26 has a seventh connecting part and an eighth connecting part. The seventh connecting part is slidably connected to the inner wall of the fourth mounting cavity. The seventh connecting part divides the fourth mounting cavity into a fourth receiving cavity 29 and a fourth telescopic cavity. The fourth receiving cavity 29 is located at the upper part of the fourth telescopic cavity and communicates with the fourth opening 25. Part of the eighth connecting part extends out of the fourth telescopic cavity, and the lower end of the eighth connecting part extending out of the fourth telescopic cavity is fixedly connected to the second lower mold 23 by bolts. The fourth biasing component 27 is also a spring, and its installation position is similar to that of the third biasing component 214. One end of the fourth biasing component 27 is welded and fixed to the top of the seventh connecting part, and the other end of the fourth biasing component 27 is welded and fixed to the bottom of the inner wall of the fourth mounting cavity. The two fourth biasing components 27 are located on both sides of the top of the seventh connecting part. The fourth limiting component 28 has the same structure, size, and installation position as the second limiting component 135. One of the fourth limiting components 28 is welded and fixed to the left side of the inner wall of the fourth mounting cavity, and the other fourth limiting component 28 is symmetrically arranged on the right side of the inner wall of the fourth mounting cavity. The height of the fourth limiting component 28 inside the fourth mounting cavity is greater than the height of the seventh connecting part. By connecting the air supply device to the fourth opening 25 through a pipe, and continuously and uniformly supplying air to the fourth receiving cavity 29, the second lower mold 23 can be moved upward.

[0042] The welding strip bending and flattening device provided in this embodiment has rectangular grooves on both the first lower mold 22 and the second lower mold 23, and the two rectangular grooves are identical in shape and size. The first upper mold 12 and the second upper mold 14 are both rectangular blocks, and the two rectangular blocks are identical in shape and size. The rectangular blocks can be inserted into the corresponding rectangular grooves. The distance between the first upper mold 12 and the second upper mold 14 is 0.1 mm, and the distance between the first lower mold 22 and the second lower mold 23 is 0.1 mm. As an alternative implementation, the distance between the first upper mold 12 and the second upper mold 14 can be changed by adjusting the installation position of the first upper mold 12 and the second upper mold 14, and the distance between the first lower mold 22 and the second lower mold 23 can be changed by adjusting the installation position of the first lower mold 22 and the second lower mold 23.

[0043] When the welding strip needs to be flattened, the third opening 212 and the fourth opening 25 are connected through a pipe. At this time, under the third biasing pressure generated by the third biasing member 214, the third support member 213 is moved, and under the fourth biasing pressure generated by the fourth biasing member 27, the fourth support member 26 is moved until the top surface of the first lower mold 22 is flush with the top surface of the second lower mold 23. At this time, the two rectangular slots are flush. The photovoltaic welding strip 3 with a circular cross section is placed in the two rectangular slots, and the first opening 112 and the second opening 132 are connected through another pipe. At this time, under the first biasing pressure generated by the first biasing member 114, the first support member 113 is moved, and under the second biasing pressure generated by the second biasing member 134, the second support member 133 is moved until the bottom surface of the first upper mold 12 and the bottom surface of the second upper mold 14 are flush. At this time, the first receiving cavity 116 and the second receiving cavity 136 are simultaneously filled at a uniform speed through the air supply device. As the gas in the third and fourth accommodating cavities 216 and 29 gradually increases, the gas in the first accommodating cavity 116 pushes the first support member 113 downward, compressing the first biasing member 114 and generating a first biasing force. Simultaneously, the gas in the second accommodating cavity 136 pushes the second support member 133 downward, compressing the second biasing member 134 and generating a second biasing force. This continues until the first upper mold 12 extends into the rectangular groove of the first lower mold 22, and the distance between the bottom surface of the first upper mold 12 and the bottom of the corresponding rectangular groove is at the rated value. At this time, the distance between the bottom surface of the second upper mold 14 and the bottom of the corresponding rectangular groove is also at the rated value, thus flattening the photovoltaic ribbon 3. Then, the gas in the first and second accommodating cavities 116 and 136 is released. The first upper mold 12 moves upward under the action of the first biasing force, and the second upper mold 14 moves upward under the action of the second biasing force, to flatten the next photovoltaic ribbon 3.

[0044] When bending of the welding strip is required, the gas in the first receiving cavity 116, the second receiving cavity, and the fourth receiving cavity 29 is released to the outside. Then, gas is uniformly injected into the third receiving cavity 216 through the first gas supply device. As the gas in the third receiving cavity 216 gradually increases, the gas in the third receiving cavity 216 pushes the fifth connecting part upward, that is, the third support member 213 moves upward, and at the same time, it drives the first lower mold 22 to move towards the first upper mold 12. The third biasing member 214 is compressed to generate the third biasing force until the first lower mold 22 moves to the designated height. At this time, the first lower mold 22 and the second lower mold 23 are misaligned, that is, there is a height difference. At this time, the gas injection into the third receiving cavity 216 is stopped; the second gas supply device is used to inject gas into the third receiving cavity 216. The device inflates the second receiving cavity 136 with air, and simultaneously inflates the first receiving cavity 116 with air through the third air supply device. The first upper mold 12 and the second upper mold 14 both move downwards. The first biasing member 114 is compressed to generate a first biasing force, and the second biasing member 134 is compressed to generate a second biasing force, until the distance between the bottom surface of the second upper mold 14 and the bottom of the corresponding rectangular groove is at the rated value. At this time, the second air supply device stops inflating. Then, the third air supply device continues to inflate the first receiving cavity 116 with air at a constant speed. The first upper mold 12 continues to move downwards and bends the welding strip until the distance between the bottom surface of the first upper mold 12 and the bottom of the corresponding rectangular groove is at the rated value. At this time, the third air supply device stops supplying air, and the welding strip is folded into a stepped shape.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A welding strip bending and flattening device, characterized in that, include: The pressure application assembly includes a first drive member (11), a first upper mold (12), a second drive member (13), and a second upper mold (14), wherein the first drive member (11) is connected to the first upper mold (12), and the second drive member (13) is connected to the second upper mold (14). The support assembly includes a third drive member (21), a first lower mold (22) and a second lower mold (23), wherein the third drive member (21) is connected to the first lower mold (22); The first driving member (11) can drive the first upper mold (12) to move toward the first lower mold (22), and the second driving member (13) can drive the second upper mold (14) to move toward the second lower mold (23); The third driving component (21) can drive the first lower mold (22) to move toward the first upper mold (12), and cause the first lower mold (22) and the second lower mold (23) to be misaligned.

2. The welding strip bending and flattening device according to claim 1, characterized in that, The first driving element (11) includes: A first mounting base (111) has a first mounting cavity and a first opening (112) on the first mounting cavity; The first support member (113) has a first connecting part and a second connecting part. The first connecting part is slidably connected to the inner wall of the first mounting cavity, and the first connecting part and a portion of the inner wall of the first mounting cavity form a first receiving cavity (116). The first receiving cavity (116) communicates with the first opening (112), and the second connecting part is fixedly connected to the first upper mold (12).

3. The welding strip bending and flattening device according to claim 2, characterized in that, The first driving element (11) further includes: The first biasing member (114) has one end fixedly connected to the inner wall of the first mounting cavity, and the other end fixedly connected to the first connecting part. The first limiting member (115) is located inside the first receiving cavity (116) and is fixedly connected to the inner wall of the first mounting cavity. The first limiting member (115) is used to limit the first connecting part.

4. The welding strip bending and flattening device according to claim 2, characterized in that, The second driving element (13) includes: The second mounting base (131) is adapted to be fixedly connected to the first mounting base (111), and the second mounting base (131) has a second mounting cavity, and the second mounting cavity is provided with a second opening (132). The second support member (133) has a third connecting part and a fourth connecting part. The third connecting part is slidably connected to the inner wall of the second mounting cavity, and the third connecting part and part of the inner wall of the second mounting cavity form a second receiving cavity (136). The second receiving cavity (136) communicates with the second opening (132). The fourth connecting part is fixedly connected to the second upper mold (14).

5. The welding strip bending and flattening device according to claim 4, characterized in that, The second drive unit (13) also includes: The second biasing member (134) has one end fixedly connected to the inner wall of the second mounting cavity, and the other end fixedly connected to the third connecting part. The second limiting member (135) is located inside the second receiving cavity (136) and is fixedly connected to the inner wall of the second mounting cavity. The second limiting member (135) is used to limit the third connecting part.

6. The welding strip bending and flattening device according to claim 1, characterized in that, The third driving component (21) includes: The third mounting base (211) has a third mounting cavity and a third opening (212) on the third mounting cavity; The third support member (213) has a fifth connecting part and a sixth connecting part. The fifth connecting part is slidably connected to the inner wall of the third mounting cavity, and the fifth connecting part and part of the inner wall of the third mounting cavity form a third receiving cavity (216). The third receiving cavity (216) is connected to the third opening (212), and the sixth connecting part is fixedly connected to the first lower mold (22).

7. The welding strip bending and flattening device according to claim 6, characterized in that, The third drive unit (21) also includes: The third biasing member (214) has one end fixedly connected to the inner wall of the third mounting cavity, and the other end fixedly connected to the fifth connecting part. The third limiting member (215) is located inside the third receiving cavity (216) and is fixedly connected to the inner wall of the third mounting cavity. The third limiting member (215) is used to limit the fifth connecting part.

8. The welding strip bending and flattening device according to claim 6, characterized in that, The carrier component also includes: A fourth mounting base (24) is adapted to be fixedly connected to the third mounting base (211), and the fourth mounting base (24) has a fourth mounting cavity, on which a fourth opening (25) is provided; The fourth support member (26) has a seventh connecting part and an eighth connecting part. The seventh connecting part is slidably connected to the inner wall of the fourth mounting cavity, and the seventh connecting part and part of the inner wall of the fourth mounting cavity form a fourth receiving cavity (29). The fourth receiving cavity (29) is connected to the fourth opening (25), and the eighth connecting part is fixedly connected to the first lower mold (22).

9. The welding strip bending and flattening device according to claim 8, characterized in that, The carrier component also includes: The fourth biasing member (27) has one end fixedly connected to the inner wall of the fourth mounting cavity, and the other end fixedly connected to the seventh connecting part. The fourth limiting member (28) is located inside the fourth receiving cavity (29) and is fixedly connected to the inner wall of the fourth mounting cavity. The fourth limiting member (28) is used to limit the seventh connecting part.

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