Weld strip straightening device and welding equipment

Abstract

This application relates to a solder strip straightening device and welding equipment thereof. The solder strip straightening device includes a driving component; a transmission mechanism connected to the driving component; and a straightening mechanism connected to the transmission mechanism. The straightening mechanism is provided with a straightening channel configured to accommodate the solder strip. The driving component drives the straightening mechanism to rotate via the transmission mechanism, thereby causing the solder strip within the straightening channel to rotate. The solder strip straightening device features a straightening mechanism with a straightening channel that can accommodate the solder strip. When the driving component drives the straightening mechanism to rotate via the transmission mechanism, the solder strip within the straightening channel rotates accordingly, and the originally sideways solder strip is restored to its correct position under the constraint and guidance of the straightening channel. This process can straighten the solder strip in real time and quickly, avoiding the adverse effects of sideways solder strip on subsequent lamination processes, thus significantly reducing the probability of defects such as cracking during lamination and improving product yield and quality stability.

Description

Technical Field

[0001] This application relates to the field of welding technology, and in particular to a weld strip straightening device and welding equipment thereof. Background Technology

[0002] Solar energy, as a widely distributed, inexhaustible, and green energy source, has become a crucial energy choice for achieving sustainable development in the context of global energy structure transformation and climate change mitigation. Currently, the main application of solar energy is photovoltaic (PV) power generation, and the core energy converter in solar PV power generation is the solar cell, also known as a photovoltaic cell or photovoltaic module. As the core and key component of a solar power generation system, the performance and manufacturing process of solar PV modules directly affect the overall efficiency and reliability of the system.

[0003] In the continuous advancement and innovation of battery technology, a new type of N-type battery cell—the Tunnel Oxide Passivated Contact (TOPCON) cell—has emerged. In the fabrication process of TOPCON cells, the poly-crystalline silicon on polyimide (PE-poly) step is crucial. It achieves efficient passivation of the entire back side of the cell and selective carrier passage by fabricating a high-quality ultrathin oxide layer and a doped polycrystalline silicon layer. Specifically, this process enables excellent passivation of the cell surface while adding an N+ layer on the back side, thereby increasing the majority carrier throughput and effectively blocking minority carriers, thus improving battery performance.

[0004] With the continuous development of battery technology, module technology is also being updated accordingly. Regarding the welding process of stringers, the previous combination of shaped solder ribbons and emitter and rear passivated cells (PERC) is gradually being replaced by a combination of round solder ribbons and TOPCON cells. Because TOPCON modules use round solder ribbons, this requires the introduction of a solder ribbon flattening process into the welding machine.

[0005] With continuous updates to welding machine versions and breakthroughs in welding speed, the performance requirements for the flattening mechanism of the welding machine are also increasing. The time for the flattening mechanism to complete the entire flattening action is getting shorter and shorter, which poses more stringent challenges to the overall performance and process stability of the welding machine. At the same time, the secondary stretching function of flattening the welding strip originally required more than 0.1 seconds. In order to improve the production cycle of the welding machine, this function is often turned off in actual production to meet the production line's capacity requirements.

[0006] However, after disabling the secondary stretching function of the flattened solder strip, the flattened strip lacks effective fixing measures and remains in a loose state. When the solder strip is subjected to external force during movement, it is prone to rotation, resulting in the flattened solder strip standing upright on the solar cell. This defect can lead to batch cell cracking during subsequent lamination processes, seriously affecting product quality.

[0007] Therefore, there is an urgent need to develop a technical solution that can effectively solve the above problems in order to improve the production quality and efficiency of solar photovoltaic modules. Utility Model Content

[0008] Based on this, a welding strip correction device and welding equipment are provided, which can constrain and guide the welding strip to return to the correct position, avoiding the adverse effects of the welding strip standing upright on the subsequent lamination process.

[0009] A solder strip straightening device, comprising:

[0010] Drive components;

[0011] A transmission mechanism, connected to the drive component; and

[0012] A correction mechanism is connected to the transmission mechanism; the correction mechanism is provided with a correction channel, which is configured to accommodate the welding strip; wherein, the driving component drives the correction mechanism to rotate through the transmission mechanism, thereby driving the welding strip in the correction channel to rotate.

[0013] In one embodiment, the correction mechanism includes a support and two semi-ring bodies;

[0014] The support portion is provided with a through hole, and the two semi-ring bodies are symmetrically arranged along the first radial direction of the through hole and are respectively connected to the support portion; wherein, along the axial direction of the through hole, the semi-ring bodies partially overlap with the through hole;

[0015] The through hole and the area between the two semi-rings corresponding to the through hole are together constructed as the correction channel; wherein, the inner wall of the semi-ring is in contact with the welding strip.

[0016] In one embodiment, the correction mechanism includes a plurality of reinforcing ribs, each of which extends along the radial direction of the through hole and is connected to the corresponding semi-ring body.

[0017] In one embodiment, there are four reinforcing ribs, which are symmetrically arranged in pairs along the first radial direction and the second radial direction of the through hole, and the first radial direction and the second radial direction of the through hole are perpendicular to each other.

[0018] The reinforcing ribs located on both sides of the first radial direction of the through hole have a first preset angle, and the reinforcing ribs located on both sides of the second radial direction of the through hole have a second preset angle, wherein the first preset angle is smaller than the second preset angle.

[0019] In one embodiment, the correction mechanism further includes a fixing ring, which is connected to the semi-ring body and the reinforcing rib, and the fixing ring is fitted into the semi-ring body;

[0020] The intersection of the fixing ring and the reinforcing rib has a preset distance from the inner diameter end point of the semi-ring.

[0021] In one embodiment, the support portion is provided with a recessed groove, and a ring is fitted into the recessed groove, the ring being fixedly connected to the support rod;

[0022] When the driving component drives the correction mechanism through the transmission mechanism, the support portion moves relative to the ring body.

[0023] In one embodiment, the transmission mechanism includes a first transmission connecting rod with a plurality of first transmission teeth; the circumferential outer wall of the support portion is provided with a plurality of second transmission teeth, and the first transmission teeth and the second transmission teeth are meshed together; wherein, the first transmission connecting rod is connected to the driving component.

[0024] In one embodiment, the transmission mechanism further includes a second transmission connecting rod, a reversing connecting rod, and a fixed block. The first transmission connecting rod is rotatably connected to the reversing connecting rod, the reversing connecting rod is rotatably mounted on the fixed block, the reversing connecting rod is rotatably connected to the second transmission connecting rod, and the second transmission connecting rod is rotatably connected to the driving component.

[0025] In one embodiment, the transmission mechanism further includes a limiting guide rail, on which the first transmission connecting rod is slidably disposed.

[0026] A welding device includes a strip straightening device as described in any of the above embodiments, as well as a welding mechanism, a clamping mechanism, a flattening mechanism, a guiding mechanism, a cutting mechanism, a traction mechanism, and a conveying mechanism;

[0027] The welding mechanism, the clamping mechanism, the flattening mechanism, the welding strip correction device, the guiding mechanism, the cutting mechanism, and the traction mechanism are sequentially arranged on the conveying mechanism, which is configured to convey the welding strip.

[0028] The aforementioned weld strip straightening device and welding equipment include a straightening mechanism within the straightening device. This mechanism has a straightening channel that can accommodate the weld strip. When the driving component rotates the straightening mechanism via a transmission mechanism, the weld strip within the straightening channel rotates accordingly. The originally sideways weld strip is then guided and restored to its correct position under the constraint of the straightening channel. This process enables real-time and rapid straightening of the weld strip, avoiding the adverse effects of sideways weld strip on subsequent lamination processes. This significantly reduces the probability of defects such as cracking during lamination, improving product yield and quality stability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a solder strip correction device in an exemplary embodiment.

[0030] Figure 2 This is a schematic diagram of a solder strip correction device in an exemplary embodiment.

[0031] Figure 3 This is a schematic diagram of a solder strip correction device in an exemplary embodiment.

[0032] Figure 4 This is a schematic diagram of a welding apparatus in an exemplary embodiment.

[0033] Figure label:

[0034] 1. Welding strip straightening device; 11. Drive component; 12. Transmission mechanism; 121. First transmission connecting rod; 1211. First transmission gear; 122. Second transmission connecting rod; 123. Reversing connecting rod; 1231. Pin; 124. Fixing block; 125. Limiting guide rail; 13. Straightening mechanism; 131. Straightening channel; 132. Support part; 1321. Through hole; 1322. Recessed groove; 1323. Second transmission gear; 133. Semi-ring body; 134. Reinforcing rib; 135. Fixing ring; 14. Ring body; 15. Support rod; 151. Internal hexagon self-tapping screw;

[0035] 2. Welding mechanism; 21. Guide wheel; 22. Welding aid component; 3. Clamping mechanism; 31. Stretching block; 32. Block base plate; 33. Guide column; 34. Clamping block; 35. Clamping base plate; 4. Flattening mechanism; 41. Upper flattening block; 42. Lower flattening block; 5. Guiding mechanism; 6. Cutting mechanism; 7. Traction mechanism; 8. Conveying mechanism; 9. Welding strip. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0041] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] In some exemplary embodiments, such as Figures 1-4 As shown, a weld strip straightening device 1 is used in welding equipment. Its core function is to straighten the weld strip, effectively preventing it from standing upright, thereby ensuring the smooth progress of subsequent lamination processes and improving product quality and production efficiency. The weld strip straightening device 1 includes a drive component 11, a transmission mechanism 12, and a straightening mechanism 13.

[0043] The drive component 11 serves as the power source for the entire welding strip straightening device 1, providing driving force for the normal operation of the device. Its specific form can be selected according to actual needs; for example, it can be an electric motor, such as a DC motor, AC motor, or servo cylinder. Taking a DC motor as an example, it has advantages such as good speed regulation performance and large starting torque, and can flexibly adjust the speed according to different production needs, providing stable and suitable power output for the operation of the subsequent transmission mechanism 12 and straightening mechanism 13. In practical applications, the drive component 11 is installed in a suitable position; it can be set up independently or it can be an integrated mechanism within the welding equipment. It is used for stretching and pushing the welding strip, while simultaneously applying thrust to the transmission mechanism 12 to ensure its stable operation and effective power transmission.

[0044] The transmission mechanism 12 is connected to the drive component 11, accurately and efficiently transmitting the power generated by the drive component 11 to the correction mechanism 13. The transmission mechanism 12 can adopt various transmission methods, such as gear transmission, chain transmission, belt transmission, etc.

[0045] The correction mechanism 13 is connected to the transmission mechanism 12. The correction mechanism 13 directly corrects the welding strip 9, thereby preventing the welding strip 9 from tilting. The correction mechanism 13 is provided with a correction channel 131. The size and shape of the correction channel 131 are based on actual conditions to precisely accommodate the welding strip 9. The welding strip 9 is initially a round wire welding strip with a standard diameter of 0.26mm-0.01mm / +0.02mm. The thickness of the flattened round wire welding strip is 0.09mm-0.13mm, and the width of the flattened round wire welding strip is 0.41mm-0.59mm. Considering machine differences and accuracy, the inner width is controlled at 0.45mm-0.55mm. The inner wall of the correction channel 131 can be made of a smooth material to reduce the friction of the welding strip 9 when it moves in the channel and avoid damage to the welding strip 9.

[0046] When the drive component 11 drives the correction mechanism 13 to rotate via the transmission mechanism 12, the welding strip 9 in the correction channel 131 will also rotate accordingly. During the rotation, the welding strip 9, which may have been in a sideways position, will gradually return to the correct position under the constraint and guidance of the correction channel 131, thereby achieving the correction of the welding strip 9.

[0047] In practice, when the welding strip 9 enters the correction channel 131 in the welding equipment, the drive component 11 starts working, driving the correction mechanism 13 to rotate in a preset direction and speed via the transmission mechanism 12. As the correction mechanism 13 rotates, the correction channel 131 applies a certain force to the welding strip 9, causing the welding strip 9 to rotate within the channel until the side of the welding strip 9 is corrected to a horizontal or other correct position, thus avoiding any adverse effects of the side of the welding strip 9 on the subsequent lamination process.

[0048] In practical production applications, the welding strip correction device 1 can be integrated with welding equipment. For example, it can be installed on the welding strip conveying path of the welding equipment to ensure that the welding strip 9 can smoothly enter the correction channel 131 during the conveying process. Simultaneously, the speed and rotation time of the drive component 11 can be controlled by the control system to adapt to the correction requirements of welding strips 9 of different specifications and materials. Furthermore, to further improve the reliability and stability of the device, corresponding sensors can be installed in the device to monitor the position status of the welding strip 9 and the operation of the correction mechanism 13 in real time, and feed the monitoring signals back to the control system so that the operating parameters of the device can be adjusted in a timely manner to ensure that the welding strip correction effect reaches the optimal level.

[0049] In some exemplary embodiments, such as Figures 1-4As shown, the correction mechanism 13 includes a support part 132 and two semi-rings 133. There can be one or more correction mechanisms 13, which are arranged at intervals to achieve synchronous rotation of multiple welding strips 9, thereby improving correction efficiency and production capacity.

[0050] The support portion 132 is the basic support structure of the correction mechanism 13, providing a stable mounting position for the two semi-ring bodies 133. The support portion 132 is provided with a through hole 1321, the shape and size of which are designed according to the specifications of the welding strip 9 and the design requirements of the correction channel 131. The axial direction of the through hole 1321 determines the direction of movement of the welding strip 9 during the correction process. In practical applications, the support portion 132 can be made of high-strength, wear-resistant materials, such as stainless steel or aluminum alloy, to ensure that it can withstand certain external forces without deformation or damage during long-term use, thereby guaranteeing the stability and reliability of the correction mechanism 13.

[0051] The two semi-annular bodies 133 are along the first radial direction of the through hole 1321 (refer to...) Figure 1 The symmetrical arrangement along the X-axis (as shown) helps ensure that the welding strip 9 is subjected to uniform force during the correction process, thus improving the correction effect. The two semi-rings 133 are respectively connected to the support part 132, and the connection method can be bolted, welded, or integrally formed, or other suitable connection methods.

[0052] Along the axial direction of the through hole 1321, the semi-annular body 133 partially overlaps with the through hole 1321. The area between the through hole 1321 and the two semi-annular bodies 133 corresponding to the through hole 1321 is jointly constructed as a correction channel 131. The correction channel 131 is the space for the correction operation of the solder ribbon 9, and its size and shape have a direct impact on the correction effect of the solder ribbon 9. In this embodiment, the size of the through hole 1321 and the semi-annular body 133 is related to the size of the solder ribbon 9. The diameter of the semi-annular body 133 can be, for example, but not limited to, 0.3 mm, as long as it can ensure that the solder ribbon 9 can abut against the inner wall of the correction channel 131, so as to ensure that the solder ribbon 9 can move smoothly in the channel, while also providing a certain degree of constraint and guidance for the solder ribbon 9.

[0053] The two semi-rings 133 are the parts of the correction mechanism 13 that directly contact the welding strip 9 and apply the correction effect. The inner wall of the semi-ring 133 is in contact with the welding strip 9 to ensure that the semi-ring 133 applies a stable force to the welding strip 9, causing the welding strip 9 to rotate within the correction channel 131, thereby achieving the purpose of correcting the welding strip to stand upright.

[0054] In practice, when the solder strip 9 enters the correction channel 131, the inner wall of the semi-ring 133 abuts against the solder strip 9. When the correction mechanism 13 moves as a whole, such as by rotating, the semi-ring 133 will exert a certain force on the solder strip 9. As the correction mechanism 13 moves, the inner wall of the semi-ring 133 will generate friction and constraint forces on the solder strip 9, causing the solder strip 9 to rotate within the correction channel 131. This corrects the solder strip 9, which might have been sideways, to the correct position, preventing the sideways solder strip from adversely affecting the subsequent lamination process.

[0055] In practical applications, the support 132 and the semi-ring 133 can be made of high-strength, wear-resistant metal materials, such as stainless steel, to ensure the stability and reliability of the device during long-term use. Meanwhile, to reduce the friction between the welding strip 9 and the inner wall of the semi-ring 133 and avoid damage to the welding strip 9, the inner wall of the semi-ring 133 can be smoothed, for example, by polishing or coating with a low-friction coefficient.

[0056] Furthermore, to further improve the intelligence and automation level of the correction mechanism 13, sensors can be installed on the support 132 or the semi-ring 133 to monitor the position and correction effect of the welding strip 9 in real time. The sensors feed back the monitoring signals to the control system, which automatically adjusts the working parameters of the correction mechanism 13, such as the rotation speed and force of the semi-ring 133, based on the feedback information to achieve more precise welding strip correction.

[0057] In related technologies, it is impossible to effectively detect the defect of flattened welding strip 9 standing up on-site, and there is a lack of effective mistake-proofing measures. This brings great quality risks to the production process and restricts the further improvement of production efficiency and product quality. The two semi-rings 133 set in this application can realize mistake-proofing design and effectively reduce the potential risks brought about by the production process.

[0058] In some exemplary embodiments, such as Figures 1-4 As shown, the correction mechanism 13 includes multiple reinforcing ribs 134, which enhance the structural strength and stability.

[0059] Each reinforcing rib 134 extends along the radial direction of the through hole 1321, and the reinforcing rib 134 is connected to the corresponding semi-ring 133. The reinforcing rib 134 can be in the form of a connecting line, which connects the semi-ring 133 and the support part 132 to form a more stable overall structure.

[0060] In this embodiment, as Figures 1-4 As shown, for example, four reinforcing ribs 134 are provided, with the four reinforcing ribs 134 respectively along the first radial direction and the second radial direction of the through hole 1321 (refer to...). Figure 1The Y-axis shown is symmetrically arranged in pairs. The first radial direction of the through hole 1321 and the second radial direction of the through hole 1321 are perpendicular to each other. The symmetrical arrangement helps to make the force on the correction mechanism 13 uniform in all directions, thereby improving its overall stability and reliability.

[0061] The reinforcing ribs 134 located on both sides of the first radial direction of the through hole 1321 have a first preset angle, and the reinforcing ribs 134 located on both sides of the second radial direction of the through hole 1321 have a second preset angle. The first preset angle is smaller than the second preset angle, for example, 60°, and the second preset angle is for example, 120°. The angle design is based on the force analysis and structural optimization of the correction mechanism 13. The smaller first preset angle enables the reinforcing ribs 134 located on both sides of the first radial direction to provide stronger support to the semi-ring 133 and the support part 132 in a specific direction, which helps to resist the external force in that direction; while the larger second preset angle enables the reinforcing ribs 134 located on both sides of the second radial direction to play a good stabilizing and supporting role in another vertical direction, and can also disperse stress to a certain extent, avoiding local stress concentration that could lead to structural damage.

[0062] The reinforcing rib 134 can be made of the same or compatible high-strength material as the support 132 and the semi-ring 133, such as stainless steel. This not only ensures that the reinforcing rib 134 itself has sufficient strength and rigidity, but also ensures that its connection with the support 132 and the semi-ring 133 is firm and reliable.

[0063] During the operation of the correction mechanism 13, when the welding strip 9 is subjected to external force or performs correction action in the correction channel 131, the reinforcing rib 134 can effectively transmit and disperse these forces, reduce the deformation of the support part 132 and the semi-ring 133, and ensure the stability of the shape and size of the correction channel 131, thereby ensuring that the welding strip 9 can be accurately corrected and avoiding the impact of structural deformation on the correction effect.

[0064] In this embodiment, as Figures 1-4 As shown, the correction mechanism 13 also includes a fixing ring 135, which helps to improve the correction effect and stability of the weld strip 9. The fixing ring 135 is connected to the semi-ring body 133 and the reinforcing rib 134. The fixing ring 135 and the semi-ring body 133 are connected by a fitting method to ensure that the connection between the fixing ring 135 and the semi-ring body 133 is tight and the position is relatively fixed, avoiding loosening or displacement during operation, thereby ensuring the stability of the overall structure of the correction mechanism 13.

[0065] The diameter of the fixing ring 135 is, for example, 0.6 mm. For instance, based on the center of the semi-ring 133, a ring with a diameter of 0.6 mm can be constructed; this ring is the fixing ring 135. This ring intersects with each of the four reinforcing ribs 134, forming intersection points. These intersection points are at a predetermined distance from the inner diameter endpoint of the semi-ring 133, for example, 0.15 mm.

[0066] The diameter and opening design of the fixing ring 135 do not restrict the passage of the welding strip 9. The welding strip 9 in a normal state can pass smoothly through the correction channel 131 and will not be subject to additional obstruction or deformation when passing through the fixing ring 135, ensuring the smooth movement of the welding strip 9 during the correction process.

[0067] Meanwhile, when solder balls are present on the incoming solder ribbon 9, the retaining ring 135 can effectively control them. Due to the diameter and position design of the retaining ring 135, solder balls are blocked or restricted within a certain range when passing through the retaining ring 135, avoiding adverse effects on subsequent solder ribbon correction and lamination processes. For example, solder balls may cause unevenness or air bubbles on the component surface during lamination, and the presence of the retaining ring 135 can effectively reduce the occurrence of such situations.

[0068] For the flattened and upright weld strip 9, the opening area design of the retaining ring 135 allows the flattened and upright weld strip 9 to pass smoothly without being biased to one side. When the correction mechanism 13 rotates, this design of the retaining ring 135 helps to cause the flattened weld strip 9 to be rotated under force. During the rotation, the retaining ring 135 can guide and constrain the flattened weld strip 9 to gradually return it to the correct position within the correction channel 131, thereby solving the defect of the flattened weld strip 9 standing upright and ensuring that the weld strip 9 enters the subsequent lamination process in the correct posture.

[0069] In some exemplary embodiments, such as Figures 1-4 As shown, the support part 132 is provided with a recessed groove 1322, and a ring 14 is fitted inside the recessed groove 1322. The depth of the recessed groove 1322 is based on the actual situation to ensure that the ring 14 will not easily come out of the recessed groove 1322 due to external force, while also avoiding excessive depth that would reduce the structural strength of the support part 132.

[0070] The ring 14 is fixedly connected to the support rod 15. For example, the ring 14 is fixed to the support rod 15 by a hexagonal self-tapping screw 151, improving the stability of the ring 14. The support rod 15 can be integrated and fixed in the welding equipment to achieve stability. The support rod 15 is fixedly connected to the welding equipment by a fixing block 152, which is fixed to the welding equipment by bolts 153. To ensure the stability and balance of the correction mechanism 13, for example, two support rods 15 are provided, symmetrically arranged along the second radial direction of the through hole 1321, so that the correction mechanism 13 is subjected to uniform force during movement, reducing vibration and deviation caused by uneven force.

[0071] When the drive component 11 drives the correction mechanism 13 through the transmission mechanism 12, the support part 132 moves relative to the ring body 14. The support rod 15 is fixed in the welding equipment, so the ring body 14 remains relatively stationary during the movement. Under the drive of the transmission mechanism 12, the support part 132 rotates around the central axis of the ring body 14, thereby realizing the correction action of the welding strip 9.

[0072] In some exemplary embodiments, such as Figures 1-4 As shown, the transmission mechanism 12 includes a first transmission connecting rod 121, on which multiple first transmission teeth 1211 are provided. Multiple second transmission teeth 1323 are provided on the circumferential outer wall of the support portion 132, and the first transmission teeth 1211 and second transmission teeth 1323 mesh with each other. The first transmission connecting rod 121 is connected to the driving component 11. In this case, the driving component 11 can directly drive the first transmission connecting rod 121 to perform linear motion. The first transmission teeth 1211 on the first transmission connecting rod 121 mesh with the second transmission teeth 1323 on the support portion 132, thereby driving the support portion 132 to rotate. This method is simple and the structure is easy to operate.

[0073] In this embodiment, as Figures 1-4 As shown, in order to achieve linkage, other auxiliary components can be added. These components cooperate with each other to achieve stable power transmission from the drive component 11 to the correction mechanism 13. For example, the transmission mechanism 12 also includes a second transmission connecting rod 122, a reversing connecting rod 123, and a fixing block 124.

[0074] The first transmission connecting rod 121 is rotatably connected to the reversing connecting rod 123. The reversing connecting rod 123 is, for example, an L-shaped right-angle reversing connecting rod structure, which can effectively change the direction of power transmission. The reversing connecting rod 123 is rotatably mounted on the fixed block 124, which is, for example, integrated and fixed in the welding equipment, providing stable support for the reversing connecting rod 123. The reversing connecting rod 123 can be rotatably connected to the fixed block 124 via a pin 1231.

[0075] The reversing connecting rod 123 is rotatably connected to the second transmission connecting rod 122, which can be achieved by using a bearing connection to ensure smooth relative rotation between the two. The end of the second transmission connecting rod 122 away from the reversing connecting rod 123 is rotatably connected to the drive component 11, which can adapt to various angle changes of the transmission mechanism 12 during the movement process, ensuring the continuity and stability of power transmission.

[0076] In this embodiment, as Figures 1-4 As shown, the transmission mechanism 12 also includes a limiting guide rail 125, on which the first transmission connecting rod 121 is slidably mounted. The limiting guide rail 125 is fixed to the corresponding position of the welding equipment by means of bolts or welding, providing guidance for the movement of the first transmission connecting rod 121.

[0077] Under the action of the driving component 11, the first transmission connecting rod 121 moves linearly along the limiting guide rail 125. The limiting guide rail 125 can prevent the first transmission connecting rod 121 from deviating or shaking during the movement, thus ensuring the stability and reliability of the transmission mechanism 12.

[0078] In practical applications, when the drive component 11 is activated, it drives the second transmission connecting rod 122 to move. The second transmission connecting rod 122 transmits power to the reversing connecting rod 123, which rotates around the pin 1231, changing the direction of power transmission and driving the first transmission connecting rod 121 to move along the limiting guide rail 125. The first transmission tooth 1211 on the first transmission connecting rod 121 meshes with the second transmission tooth 1323 on the support part 132, thereby causing the support part 132 to drive the correction mechanism 13 to perform corresponding actions, realizing the correction function of the welding strip 9.

[0079] In some exemplary embodiments, such as Figures 1-4 As shown, a welding device includes a welding strip correction device 1 as in any of the above embodiments, as well as a welding mechanism 2, a clamping mechanism 3, a flattening mechanism 4, a guiding mechanism 5, a cutting mechanism 6, a traction mechanism 7, and a conveying mechanism 8.

[0080] Welding mechanism 2, clamping mechanism 3, flattening mechanism 4, welding strip correction device 1, guiding mechanism 5, cutting mechanism 6, and traction mechanism 7 are sequentially arranged on conveying mechanism 8, which is configured to convey welding strip 9.

[0081] The welding mechanism 2 is equipped with a guide wheel 21 and a welding flux component 22. The welding flux component 22 is equipped with a flux tank, which contains flux. After the welding strip 9 passes through the guide wheel 21, it enters the flux tank.

[0082] The clamping mechanism 3 includes a tension block 31, a base plate 32, a guide post 33, a clamping block 34, and a clamping base plate 35. The tension block 31 and the base plate 32 are respectively located on the upper and lower sides of the welding strip 9. The guide post 33 and the clamping block 34 are sequentially arranged downstream of the tension block 31 and are both located above the welding strip 9. The clamping base plate 35 is arranged downstream of the base plate 32 and is located below the welding strip 9. The clamping block 34 and the clamping base plate 35 constantly press down on the welding strip 9, keeping it moving in a preset direction.

[0083] The flattening mechanism 4 includes an upper flattening block 41 and a lower flattening block 42, which are respectively located on the upper and lower sides of the welding strip 9. The flattening mechanism 4 also includes a main air pressure component (not shown in the figure). The main air pressure component has a branch air pipe leading out, which connects to eight stroke flattening cylinders. Each cylinder corresponds to a pair of upper flattening blocks 41 and lower flattening blocks 42. Each lower flattening block 42 supports two welding strips 9. The cylinders control the upper flattening block 41 to move downwards and impact the lower flattening block 42, thereby achieving the effect of flattening the welding strip 9.

[0084] The guiding mechanism 5 is equipped with a guide comb to correct the movement direction of the welding strip 9.

[0085] The cutting mechanism 6 includes at least one cutter to cut the welding strip 9.

[0086] The traction mechanism 7 includes grippers to hold the welding strip 9. When the welding strip 9 reaches the set pull length, the cutting mechanism 6 cuts the welding strip 9. The traction mechanism 7 places the welding strip 9 onto the welding strip belt (not shown in the figure), the tail clamp cylinder clamps the welding strip 9, the traction mechanism 7 releases the welding strip 9 and returns, during which the welding strip 9 remains fixed and upright on the battery cell.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A solder strip correction device, characterized by, include: Drive components; The transmission mechanism is connected to the drive component; as well as A correction mechanism is connected to the transmission mechanism; the correction mechanism is provided with a correction channel, which is configured to accommodate the welding strip; wherein, the driving component drives the correction mechanism to rotate through the transmission mechanism, thereby driving the welding strip in the correction channel to rotate.

2. The welding strip correction device according to claim 1, characterized in that, The correction mechanism includes a support section and two semi-ring bodies; The support portion is provided with a through hole, and the two semi-ring bodies are symmetrically arranged along the first radial direction of the through hole and are respectively connected to the support portion; wherein, along the axial direction of the through hole, the semi-ring bodies partially overlap with the through hole; The through hole and the area between the two semi-rings corresponding to the through hole are together constructed as the correction channel; wherein, the inner wall of the semi-ring is in contact with the welding strip.

3. The solder strip correction device of claim 2, wherein, The correction mechanism includes multiple reinforcing ribs, each of which extends along the radial direction of the through hole and is connected to the corresponding semi-ring body.

4. The solder strip correction device of claim 3, wherein, There are four reinforcing ribs, which are symmetrically arranged in pairs along the first radial direction and the second radial direction of the through hole, and the first radial direction and the second radial direction of the through hole are perpendicular to each other. The reinforcing ribs located on both sides of the first radial direction of the through hole have a first preset angle, and the reinforcing ribs located on both sides of the second radial direction of the through hole have a second preset angle, wherein the first preset angle is smaller than the second preset angle.

5. The solder strip correction device of claim 3, wherein, The correction mechanism further includes a fixing ring, which is connected to the semi-ring body and the reinforcing rib, and the fixing ring is fitted into the semi-ring body; The intersection of the fixing ring and the reinforcing rib has a preset distance from the inner diameter end point of the semi-ring.

6. The solder strip correction device of claim 2, wherein, The support part is provided with a recessed groove, and a ring is embedded in the recessed groove. The ring is fixedly connected to the support rod. When the driving component drives the correction mechanism through the transmission mechanism, the support portion moves relative to the ring body.

7. The solder strip correction device of claim 2, wherein The transmission mechanism includes a first transmission connecting rod, on which a plurality of first transmission teeth are provided; the circumferential outer wall of the support portion is provided with a plurality of second transmission teeth, and the first transmission teeth and the second transmission teeth are meshed together; wherein, the first transmission connecting rod is connected to the driving component.

8. The solder strip correction device of claim 7, wherein, The transmission mechanism further includes a second transmission connecting rod, a reversing connecting rod, and a fixed block. The first transmission connecting rod is rotatably connected to the reversing connecting rod. The reversing connecting rod is rotatably mounted on the fixed block. The reversing connecting rod is rotatably connected to the second transmission connecting rod. The second transmission connecting rod is rotatably connected to the driving component.

9. The solder strip correction device of claim 8, wherein, The transmission mechanism also includes a limiting guide rail, on which the first transmission connecting rod is slidably mounted.

10. A welding apparatus characterized by comprising: It includes the strip straightening device as described in any one of claims 1-9, as well as a welding mechanism, a clamping mechanism, a flattening mechanism, a guiding mechanism, a cutting mechanism, a traction mechanism, and a conveying mechanism; The welding mechanism, the clamping mechanism, the flattening mechanism, the welding strip correcting device, the guiding mechanism, the cutting mechanism and the traction mechanism are sequentially arranged on the conveying mechanism, and the conveying mechanism is arranged to convey the welding strip.

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