Soldering tape processing equipment, battery string production line and soldering tape processing method

Abstract

The present invention discloses a solder tape processing device, a battery string production line and a solder tape processing method. The solder tape processing device includes a solder tape stretching device, a solder tape clamping device, a solder tape cutting device and a solder tape traction device arranged in sequence. The solder tape traction device is configured to clamp multiple parallel solder tapes and traction the solder tapes to move. The solder tape cutting device cuts the solder tapes into solder tape segments after the solder tape traction device tractions the solder tapes to a preset position. The solder tape stretching device and the solder tape clamping device are configured to clamp the solder tapes at the preset position of the solder tapes, and the solder tape stretching device moves relative to the solder tape clamping device to stretch the solder tapes so that the nth cut solder tape segment elongates a preset length, where n is greater than 1. The solder tape segment stretched by the solder tape stretching device is used for laying at the tail of the previous battery string and the head of the next battery string among two adjacent battery strings. The technical solution provided by the present invention can achieve continuous stacking of battery strings when using solder tapes including flat segments and shaped segments to produce battery strings.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and specifically, to a solder ribbon processing device, a battery string production line, and a solder ribbon processing method. Background Art

[0002] In the prior art, to improve the preparation efficiency of battery strings, a continuous production process of battery strings is usually adopted, that is, a relatively long solder ribbon is used to connect two adjacent battery strings, and a certain distance is left between the two battery strings. After the battery strings are welded into a string, a cutting knife is used to cut the solder ribbon at the position between the two battery strings to form independent small battery strings.

[0003] However, the solder ribbons used in the traditional continuous production process of battery strings are circular or flat solder ribbons without nodes. When a new type of solder ribbon with a special-shaped section and a flat section is used to prepare battery strings, since there are nodes between the special-shaped section and the flat section, if a relatively long solder ribbon is used to connect adjacent battery strings, the connection between the cut solder ribbon and the battery string will be disordered.

[0004] Therefore, a new technical solution is needed to enable the continuous production of battery strings when using a new type of solder ribbon with a special-shaped section and a flat section. Summary of the Invention

[0005] The purpose of the present invention is to provide a solder ribbon processing device, a battery string production line, and a solder ribbon processing method to enable the continuous production of battery strings when using a new type of solder ribbon with a special-shaped section and a flat section.

[0006] To achieve the above purpose, the present invention provides a solder ribbon processing device. The solder ribbon processing device includes a solder ribbon stretching device, a solder ribbon clamping device, a solder ribbon cutting device, and a solder ribbon traction device arranged in sequence. The solder ribbon traction device is configured to hold and traction multiple parallel solder ribbons passing through the solder ribbon stretching device, the solder ribbon clamping device, and the solder ribbon cutting device in sequence. The solder ribbon cutting device is configured to cut the solder ribbon into solder ribbon segments after the solder ribbon traction device traction the solder ribbon to a preset position. Each of the solder ribbons includes alternately arranged flat sections and special-shaped sections, and each of the cut solder ribbon segments includes a flat section and a special-shaped section.

[0007] The solder ribbon stretching device and the solder ribbon clamping device are configured to clamp the solder ribbon at a preset position of the solder ribbon, and the solder ribbon stretching device moves relative to the solder ribbon clamping device to stretch the solder ribbon between the solder ribbon clamping device and the solder ribbon stretching device, so that the nth cut solder ribbon segment is elongated by a preset length, where n is greater than 1. The nth cut solder ribbon segment stretched by the solder ribbon stretching device is used to be laid on the tail of the previous battery string and the head of the next battery string among two adjacent battery strings.

[0008] Preferably, the solder tape processing device further includes a solder tape adjusting device located between the solder tape clamping device and the solder tape cutting device. The solder tape adjusting device includes a plurality of solder tape feeding mechanisms. Each solder tape feeding mechanism is configured to independently clamp a solder tape and feed the clamped solder tape to adjust the position of the solder tape, so that the nodes between the flat segments and the special-shaped segments of the plurality of solder tapes at the preset positions are aligned in the width direction of the solder tape.

[0009] Preferably, the solder tape processing device further includes a node detection device for detecting the node positions of the solder tape. The solder tape adjusting device adjusts the solder tape according to the node positions detected by the node detection device.

[0010] According to another aspect of the present invention, there is also provided a battery string production line, which includes a conveying device, a battery cell providing device and the solder tape processing device as described above;

[0011] The solder tape traction device in the solder tape processing device clamps the cut solder tape segment and lays the solder tape segment on the conveying device. The battery cell providing device lays battery cells on the conveying device, so that the battery cells and the solder tape segments are stacked in a predetermined manner.

[0012] According to still another aspect of the present invention, there is also provided a solder tape processing method, which uses the solder tape processing device as described above. The method includes:

[0013] Using the solder tape traction device to clamp the traction end of the solder tape and traction for a first predetermined distance;

[0014] Obtaining a count value and determining whether the count value reaches a predetermined value;

[0015] When the count value does not reach the predetermined value, using the solder tape cutting device to cut the solder tape to obtain a set of solder tape segments, adding 1 to the count value, and continuing to execute the step of using the solder tape traction device to clamp the traction end of the solder tape and traction for a first predetermined distance;

[0016] When the count value reaches the predetermined value, using the solder tape stretching device to stretch the solder tape clamped by the solder tape clamping device, and using the solder tape cutting device to cut the solder tape after the stretching action is completed to obtain a set of stretched solder tape segments;

[0017] Setting the count value to 0 and continuing to execute the step of using the solder tape traction device to clamp the traction end of the solder tape and traction for a first predetermined distance.

[0018] Preferably, after the solder tape traction device clamps the traction end of the solder tape and traction the solder tape to the first predetermined distance, the solder tape processing method includes:

[0019] Clamp the welding tape with the welding tape adjusting device.

[0020] Preferably, after clamping the traction end of the welding tape with the welding tape traction device and pulling it for a first predetermined distance, and before clamping the welding tape with the welding tape adjusting device, the method further includes:

[0021] Determine the welding tape to be adjusted according to the detection position of the node between the flat section and the special-shaped section on the welding tape;

[0022] Feed the welding tape to be adjusted with the welding tape adjusting device so that the nodes of each welding tape are aligned in the width direction of the welding tape.

[0023] Preferably, the stretching of the welding tape clamped by the welding tape clamping device with the welding tape stretching device includes:

[0024] Clamp the flat section of the welding tape with the welding tape clamping device;

[0025] Clamp the flat section of the next set of welding tape segments after the flat section clamped by the welding tape clamping device with the welding tape stretching device, and stretch the welding tape clamped by the welding tape clamping device for a second predetermined distance in a direction away from the welding tape clamping device.

[0026] According to another aspect of the present invention, there is also provided a method for processing a welding tape, and the method for processing the welding tape includes:

[0027] Clamp the traction end of the welding tape and pull it for a first predetermined distance;

[0028] Clamp the welding tape at a predetermined first clamping position;

[0029] Obtain a count value and judge whether the count value reaches a predetermined value;

[0030] When the count value does not reach the predetermined value, cut the welding tape at the cutting position to obtain a set of welding tape segments, add 1 to the count value, and continue to execute the step of clamping the traction end of the welding tape and pulling it for a first predetermined distance;

[0031] When the count value reaches the predetermined value, stretch the clamped welding tape in the reverse direction, and cut the welding tape at the cutting position after the stretching action is completed to obtain a set of welding tape segments;

[0032] Set the count value to 0, and continue to execute the step of clamping the traction end of the welding tape and pulling it for a first predetermined distance;

[0033] Wherein, the welding tape to be cut out and pulled is sequentially passed through the first clamping position and the cutting position.

[0034] Preferably, after the traction end of the welding tape is clamped and pulled for a first predetermined distance, and before the welding tape is clamped at a predetermined first clamping position, the method further includes:

[0035] Determine the welding tape to be adjusted according to the detection position of the node between the flat section and the special-shaped section on the welding tape;

[0036] Feed the welding tape to be adjusted so that the nodes of each welding tape are aligned in the width direction of the welding tape.

[0037] Preferably, the reverse stretching of the clamped welding tape includes:

[0038] Clamp the welding tape at a second clamping position,

[0039] Stretch the welding tape clamped at the second clamping position in a direction opposite to the traction direction for a second predetermined distance.

[0040] In the technical solution provided by the present invention, stretching the welding tape segment to be cut for connecting two battery strings can achieve continuous stacking of battery strings, which is beneficial to improving the production efficiency of battery strings. Description of the Drawings

[0041] Figure 1 Schematic structural diagram of a welding tape processing device according to an embodiment of the present invention;

[0042] Figure 2 Schematic structural diagram of a welding tape;

[0043] Figure 3 Schematic structural diagram of a cut welding tape segment.

[0044] Explanation of the reference numerals in the drawings:

[0045] 1 - Welding tape stretching device; 2 - Welding tape clamping device; 3 - Welding tape cutting device; 4 - Welding tape traction device; 5 - Welding tape adjusting device; 6 - Node detection device; 10 - Welding tape segment; 11 - Special-shaped section; 12 - Flat section; 13 - Node. Detailed Embodiments

[0046] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0047] In addition, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that one or more of the specific details may be omitted in practicing the technical solutions of the present disclosure, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0048] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right", etc. may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientations shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "lower" than other elements or features will be positioned "above" other elements or features. Thus, the exemplary term "lower" can encompass both upper and lower orientations. The device can also be positioned in other ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein can be interpreted accordingly.

[0049] The present invention provides a solder ribbon processing device, as Figure 1 shown, the solder ribbon processing device includes a solder ribbon stretching device 1, a solder ribbon clamping device 2, a solder ribbon cutting device 3, and a solder ribbon traction device 4 arranged in sequence. The solder ribbon traction device 4 is configured to hold and traction multiple parallel solder ribbons passing through the solder ribbon stretching device 1, the solder ribbon clamping device 2, and the solder ribbon cutting device 3 in sequence. The solder ribbon cutting device 3 is configured to cut the solder ribbon into solder ribbon segments after the solder ribbon traction device 4 tractions the solder ribbon to a preset position;

[0050] The solder ribbon stretching device 1 and the solder ribbon clamping device 2 are configured to clamp the solder ribbon at a preset position of the solder ribbon, and the solder ribbon stretching device 1 moves relative to the solder ribbon clamping device 2 to stretch the solder ribbon between the solder ribbon clamping device 2 and the solder ribbon stretching device 1 so that the nth cut solder ribbon segment elongates a preset length, where n is greater than 1. The nth solder ribbon segment stretched by the solder ribbon stretching device 1 is used for laying at the tail of the previous battery string and the head of the subsequent battery string in two adjacent strings of battery strings.

[0051] As Figure 2 described, the solder ribbon described in the present invention includes alternating special-shaped segments 11 and flat segments 12, and nodes 13 for the transition between the special-shaped segments 11 and the flat segments 12 are formed therebetween. Each of the cut solder ribbon segments 10 (as Figure 3) includes a flat section 12 and a special-shaped section 11, the flat section 12 is flat and suitable for stacking under the battery cell, the cross-section of the special-shaped section 11 is triangular or circular or other bottom surface that can easily contact the upper surface of the battery cell and the top surface gradually shrinks, thereby helping to reduce the cross-section of the shading area of the battery cell.

[0052] In the process of constructing a battery string, the battery cell is placed on the flat section 12 of a group of side-by-side welding ribbon segments 10, the shaped section 11 of the next group of welding ribbon segments 10 is stacked on the upper surface of the battery cell, and then another battery cell is stacked on the flat section 12 of the next welding ribbon segment 10, and the stacking cycle is repeated to form a battery string.

[0053] When stacking battery strings continuously, at least two battery strings are stacked continuously, and a set of longer welding ribbon segments are stacked on the last battery cell of the previous battery string as the tail welding ribbon segment of the battery string. Then, the longer welding ribbon segment is used as the head welding ribbon segment of the next battery string. After forming a continuous battery string, the longer welding ribbon segment between the two battery strings is cut to form each independent battery string.

[0054] Since the welding ribbon includes staggered irregularly shaped segments 11 and flat segments 12, and each welding ribbon segment 10 includes a irregularly shaped segment 11 and a flat segment 12, in order to achieve continuous stacking of battery strings, the technical solution provided by the present invention uses a welding ribbon stretching device 1 to stretch the welding ribbon clamped by the welding ribbon clamping device 2 to obtain the stretched nth welding ribbon segment. This stretched nth welding ribbon segment is used as a longer welding ribbon connecting two adjacent battery strings. Therefore, using the welding ribbon processing equipment provided by this application to process the welding ribbon can achieve continuous production of battery strings, which is conducive to improving the production efficiency of battery strings.

[0055] When stacking battery strings, the nodes 13 between the irregular sections 11 and the flat sections 12 in each set of welding ribbons need to be aligned in the width direction of the ribbons. The alignment means that the distance between multiple nodes in the length direction of the ribbons is within a preset range. However, during the process of pulling the ribbons, the nodes of multiple parallel ribbons may become misaligned due to problems such as the moving speed or the stretching of the ribbons. To solve this problem, Figure 1 As shown, the welding ribbon processing equipment provided by the present invention also includes a welding ribbon adjusting device 5 located between the welding ribbon clamping device 2 and the welding ribbon cutting device 3, and the welding ribbon adjusting device 5 includes a plurality of welding ribbon feeding mechanisms, each of the welding ribbon feeding mechanisms is configured to independently clamp a welding ribbon and feed the clamped welding ribbon to adjust the position of the welding ribbon, so that the nodes between the flat sections 12 and the special-shaped sections 11 at the preset positions of the plurality of welding ribbons are aligned in the width direction of the welding ribbon.

[0056] Preferably, the solder tape processing device further includes a node detection device 6 for detecting the node positions of the solder tape, and the solder tape adjustment device 5 adjusts the solder tape according to the node positions detected by the node detection device 6.

[0057] After the solder tape traction device 4 has tractioned the solder tape for a certain distance, the node detection device 6 can detect the solder tape nodes at a preset position, and then the solder tape adjustment device 5 adjusts the solder tape so that the nodes of each solder tape clamped by the solder tape traction device 4 are aligned, and then the solder tape cutting device 3 cuts the solder tape.

[0058] According to another aspect of the present invention, there is also provided a battery string production line, which includes a conveying device, a battery cell providing device and the solder tape processing device as described above;

[0059] The solder tape traction device in the solder tape processing device clamps the cut solder tape segment and lays the solder tape segment on the conveying device, and the battery cell providing device lays battery cells on the conveying device so that the battery cells and the solder tape segments are stacked in a predetermined manner.

[0060] The battery string production line provided by the present invention can achieve continuous stacking of battery strings when using a solder tape including a special-shaped segment 11 and a flat segment 12.

[0061] According to still another aspect of the present invention, there is also provided a solder tape processing method, which uses the solder tape processing device as described above, and the method includes:

[0062] Using the solder tape traction device 4 to clamp the traction end of the solder tape and traction it for a first predetermined distance;

[0063] Obtaining a count value and determining whether the count value reaches a predetermined value; wherein, the count value can be a count of the battery cells laid in a battery string, or a count of the laid solder tape segments, or a count of the number of times the solder tape traction device 4 tractiones the solder tape. Determining whether the count value reaches the predetermined value is to determine the subsequent solder tape segment to be cut for connecting two adjacent battery strings;

[0064] When the count value does not reach the predetermined value, using the solder tape cutting device 3 to cut the solder tape to obtain a set of solder tape segments, adding 1 to the count value, and continuing to execute the step of using the solder tape traction device 4 to clamp the traction end of the solder tape and traction it for a first predetermined distance;

[0065] When the count value reaches the predetermined value, using the solder tape stretching device 1 to stretch the solder tape clamped by the solder tape clamping device 2, and after the stretching action is completed, using the solder tape cutting device 3 to cut the solder tape to obtain a set of stretched solder tape segments;

[0066] Set the count value to 0, and continue to execute the step of clamping the traction end of the welding tape by the welding tape traction device 4 and traction for a first predetermined distance.

[0067] Wherein, stretching the welding tape clamped by the welding tape clamping device 2 by the welding tape stretching device 1 includes:

[0068] Clamp the flat section 12 of the welding tape by the welding tape clamping device 2;

[0069] Clamp the flat section 12 of the next group of welding tape sections after the flat section 12 clamped by the welding tape clamping device 2 by the welding tape stretching device 1, and stretch the welding tape clamped by the welding tape clamping device 2 for a second predetermined distance in a direction away from the welding tape clamping device 2.

[0070] Preferably, after the welding tape traction device 4 clamps the traction end of the welding tape and traction the welding tape to a first predetermined distance, the welding tape processing method includes:

[0071] Clamp the welding tape by the welding tape adjusting device 5.

[0072] After the welding tape traction device 4 clamps the traction end of the welding tape and traction for a first predetermined distance, and before the welding tape adjusting device 5 clamps the welding tape, the method further includes:

[0073] Use the node detection device 6 to detect the nodes between the flat section 12 and the special-shaped section 11 on the welding tape, and determine the welding tape to be adjusted according to the detection position of the nodes;

[0074] Use the welding tape adjusting device 5 to feed the welding tape to be adjusted, so that the nodes of each welding tape are aligned in the width direction of the welding tape.

[0075] Next, according to the specific embodiments and in combination with Figure 1 Describe the specific process of providing welding tape sections by using the welding tape processing equipment provided by the present invention.

[0076] First embodiment:

[0077] First, use the welding tape traction device 4 to clamp and traction a group of parallel welding tapes that sequentially pass through the welding tape stretching device 1, the welding tape clamping device 2, and the welding tape cutting device 3, and traction the welding tape for a first predetermined distance;

[0078] Use the welding tape cutting device 3 to cut the welding tape to obtain a group of welding tape sections; wherein, to facilitate the welding tape cutting device 3 to cut the welding tape, the welding tape clamping device 2 can be used to clamp the welding tape, or a clamping mechanism is provided on the welding tape cutting device 3 itself, and the welding tape is clamped by its own clamping mechanism;

[0079] The solder tape traction device 4 holds the end of the solder tape at the solder tape cutting device 3. After the solder tape clamping device 2 that holds the solder tape or the clamping device releases the solder tape, the solder tape traction device 4 traction the solder tape for a first predetermined distance, and the solder tape cutting device 3 cuts another group of solder tape segments again, and so on in a cycle;

[0080] During the process of cutting the solder tape segments, the number of times the laid solder tape segments are laid can be counted (the number of laid solar cells can also be counted). When the count value reaches a predetermined value, the solder tape stretching device 1 and the solder tape clamping device 2 respectively hold the predetermined positions of the solder tape. Specifically, the solder tape clamping device 2 holds a flat segment 12 of the solder tape, and the solder tape stretching device 1 clamps the flat segment 12 of the next group of solder tape segments after the flat segment held by the solder tape clamping device 2, and then the solder tape stretching device 1 moves in a direction away from the solder tape clamping device 2 to stretch the solder tape clamped by the solder tape clamping device 2 for a second predetermined distance;

[0081] When cutting the stretched solder tape segment, the solder tape traction device 4 traction the solder tape to move a predetermined distance longer than the first predetermined distance. After the stretched solder tape segment extends out of the solder tape cutting device 3, the solder tape cutting device 3 cuts the stretched solder tape segment, and the solder tape traction device 4 traction the stretched solder tape segment and stacks it on the last solar cell of the already laid solar cell string;

[0082] The solder tape traction device 4 continues to hold and traction the solder tape to move the first predetermined distance;

[0083] The solder tape cutting device 3 cuts the solder tape segments, and the continuously cut solder tape segments are the solder tape segments within the string for laying the next solar cell string;

[0084] When the count reaches the predetermined value, the solder tape stretching device 1 as described above is used to stretch the solder tape clamped by the solder tape clamping device 2 to obtain the solder tape segment at the end of the next solar cell string.

[0085] Second Embodiment:

[0086] First, the solder tape traction device 4 holds and traction a group of parallel solder tapes that sequentially pass through the solder tape stretching device 1, the solder tape clamping device 2, and the solder tape cutting device 3, and traction the solder tape for a first predetermined distance;

[0087] Each solder tape feeding mechanism of the solder tape adjusting device 5 holds a solder tape respectively. According to the node position detection of the node between the flat section 12 and the special-shaped section 11 of the solder tape by the node detection device 6, the solder tape to be adjusted is determined, and the corresponding solder tape feeding mechanism feeds the solder tape, so that the nodes of each solder tape are aligned; among which, the node position detection of the node by the node detection device 6 can be before the solder tape traction device 4 traction the solder tape for the first predetermined distance, or after the solder tape traction device 4 holds the solder tape and traction for the first predetermined distance, as long as it is before the solder tape adjusting device 5 clamps the solder tape.

[0088] The solder tape cutting device 3 is used to cut the solder tape to obtain a set of solder tape segments; among which, when the solder tape cutting device 3 cuts the solder tape, the solder tape adjusting device 5 can be used to clamp the solder tape, or the solder tape clamping device 2 and the solder tape adjusting device 5 can be used to clamp the solder tape simultaneously;

[0089] The solder tape traction device 4 holds the end of the solder tape at the solder tape cutting device 3. After the solder tape clamping device 2 and the solder tape adjusting device 5 that hold the solder tape release the solder tape, the solder tape traction device 4 traction the solder tape to move the first predetermined distance. Then, the solder tape adjusting device 5 adjusts the solder tape according to the node position detection of the solder tape again, and then the solder tape cutting device 3 cuts a set of solder tape segments, and so on;

[0090] During the process of cutting the solder tape segments, the number of times of laying the solder tape segments is counted (or the number of laid solar cells can also be counted). When the count value reaches the predetermined value, the solder tape stretching device 1 and the solder tape clamping device 2 hold the predetermined positions of the solder tape respectively. Specifically, the solder tape clamping device 2 holds a flat section 12 of the solder tape, and the solder tape stretching device 1 clamps the flat section 12 of the next set of solder tape segments after the flat section 12 clamped by the solder tape clamping device 2. Then, the solder tape stretching device 1 moves in the direction away from the solder tape clamping device 2 to stretch the solder tape clamped by the solder tape clamping device 2 for the second predetermined distance;

[0091] When cutting the stretched solder tape segment, the solder tape traction device 4 traction the solder tape to move a predetermined distance longer than the first predetermined distance, so that the stretched solder tape segment extends out of the solder tape cutting device 3. The solder tape adjusting device 5 adjusts the node position of the solder tape, and the solder tape cutting device 3 cuts the stretched solder tape segment. The solder tape traction device 4 traction the stretched solder tape segment and stacks it on the last solar cell of the already laid solar cell string;

[0092] Then, the steps of using the solder tape traction device 4 to hold and traction the solder tape to move the first predetermined distance, the solder tape adjusting device 5 to adjust the solder tape, and the solder tape cutting device 3 to cut the solder tape are repeated, that is, the steps of cutting the solder tape segments in one solar cell string are repeated.

[0093] According to another aspect of the present invention, a solder tape processing method is also provided. The solder tape processing method includes:

[0094] Grip the traction end of the solder tape and traction for a first predetermined distance;

[0095] Clamp the solder tape at a predetermined first clamping position;

[0096] Obtain a count value and determine whether the count value reaches a predetermined value;

[0097] When the count value does not reach the predetermined value, cut the solder tape at the cutting position to obtain a set of solder tape segments, increment the count value by 1, and continue to perform the step of gripping the traction end of the solder tape and traction for a first predetermined distance;

[0098] When the count value reaches the predetermined value, perform reverse stretching on the clamped solder tape, cut the solder tape at the cutting position after the stretching action is completed to obtain a set of solder tape segments, set the count value to 0, and continue to perform the step of gripping the traction end of the solder tape and traction for a first predetermined distance;

[0099] Wherein, the solder tape to be cut and drawn out sequentially passes through the first clamping position and the cutting position. The first clamping position may be the position where the above-mentioned solder tape adjusting device 5 is located. The solder tape adjusting device 5 adjusts the solder tape and then clamps the solder tape, or the position of the clamping mechanism that clamps the solder tape when the solder tape cutting device 3 itself cuts the solder tape.

[0100] The performing reverse stretching on the clamped solder tape includes:

[0101] Clamp the solder tape at a second clamping position, and the second clamping device may be the position of the above-mentioned solder tape clamping device 2;

[0102] Stretch the solder tape clamped at the second clamping position in a direction opposite to the traction direction. Specifically, the solder tape stretching device 1 clamps the solder tape at a preset position relatively far from the solder tape cutting device 3 with respect to the solder tape clamping device 2, and moves the solder tape clamped by the solder tape clamping device 2 in a direction opposite to the traction direction to stretch the solder tape.

[0103] Preferably, after gripping the traction end of the solder tape and traction for a first predetermined distance and before clamping the solder tape at the predetermined first clamping position, the method further includes:

[0104] Determine the solder tape to be adjusted according to the detection position of the node between the flat segment and the special-shaped segment on the solder tape;

[0105] Feed the solder tape to be adjusted so that the nodes of each solder tape are aligned in the width direction of the solder tape.

[0106] The specific process of processing the solder tape using this solder tape processing method can refer to the above-mentioned specific embodiments, and will not be elaborated here.

[0107] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. However, these simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. A method for processing a solder strip, wherein the method is implemented using a solder strip processing device, characterized in that: The welding ribbon processing equipment includes a welding ribbon stretching device, a welding ribbon clamping device, a welding ribbon cutting device and a welding ribbon pulling device which are arranged in sequence. The welding ribbon pulling device is configured to clamp a plurality of parallel welding ribbons which pass through the welding ribbon stretching device, the welding ribbon clamping device and the welding ribbon cutting device in sequence and pull the welding ribbons to move. The welding ribbon cutting device is configured to cut the welding ribbon into welding ribbon segments after the welding ribbon pulling device pulls the welding ribbon to a preset position. Each of the welding ribbons includes flat segments and special-shaped segments which are arranged alternately, and each of the cut welding ribbon segments includes a flat segment and a special-shaped segment. The welding ribbon stretching device and the welding ribbon clamping device are configured to clamp the welding ribbon at a preset position of the welding ribbon, and the welding ribbon stretching device moves relative to the welding ribbon clamping device to stretch the welding ribbon between the welding ribbon clamping device and the welding ribbon stretching device so that the cut n-th welding ribbon segment is extended by a preset length, n is greater than 1, and the n-th welding ribbon segment stretched by the welding ribbon stretching device is used to lay the tail of the preceding battery string and the head of the succeeding battery string in two adjacent battery strings; The welding strip processing method comprises: Using the welding ribbon pulling device to clamp the pulling end of the welding ribbon and pull it a first predetermined distance; Obtaining a count value, and determining whether the count value reaches a predetermined value; When the count value does not reach the predetermined value, the welding ribbon is cut by the welding ribbon cutting device to obtain a group of welding ribbon segments, the count value is increased by 1, and the step of clamping the traction end of the welding ribbon by the welding ribbon traction device and traction for the first predetermined distance is continued; When the count value reaches the predetermined value, the welding ribbon clamped by the welding ribbon clamping device is stretched by the welding ribbon stretching device, and after the stretching action is completed, the welding ribbon is cut by the welding ribbon cutting device to obtain a group of stretched welding ribbon segments; The count value is set to 0, and the step of using the welding ribbon pulling device to clamp the pulling end of the welding ribbon and pull it for a first predetermined distance is continued.

2. The method for processing the welding strip according to claim 1, wherein: The welding ribbon processing equipment also includes a welding ribbon adjustment device located between the welding ribbon clamping device and the welding ribbon cutting device. The welding ribbon adjustment device includes multiple welding ribbon feeding mechanisms. Each of the welding ribbon feeding mechanisms is configured to independently clamp a welding ribbon and feed the clamped welding ribbon to adjust the position of the welding ribbon, so that the nodes between the flat sections and the special-shaped sections at preset positions of multiple welding ribbons are aligned in the width direction of the welding ribbon.

3. The method for processing the welding strip according to claim 2, wherein: The solder strip processing device further includes a node detection device for detecting a node position of the solder strip, and the solder strip adjustment device adjusts the solder strip according to the node position detected by the node detection device.

4. The method for processing the welding strip according to claim 1, wherein: Using the solder strip processing device according to claim 2, after the solder strip pulling device clamps the pulling end of the solder strip and pulls the solder strip to a first predetermined distance, the solder strip processing method includes: The welding ribbon is clamped by the welding ribbon adjusting device.

5. The method for processing the welding strip according to claim 4, characterized in that: After the welding ribbon pulling device is used to clamp the pulling end of the welding ribbon and pull it a first predetermined distance, and before the welding ribbon is clamped by the welding ribbon adjusting device, the method further includes: Determine the welding strip to be adjusted based on the detected position of the node between the flat section and the special-shaped section on the welding strip; The welding strip adjusting device is used to feed the welding strip to be adjusted so that the nodes of each welding strip are aligned in the width direction of the welding strip.

6. The method for processing the welding strip according to claim 1, wherein: The method of stretching the soldering ribbon clamped by the soldering ribbon clamping device by using the soldering ribbon stretching device includes: Clamping the flat section of the welding ribbon using the welding ribbon clamping device; The flat section of the next group of solder strip segments after the flat section clamped by the solder strip clamping device is clamped by the solder strip stretching device, and the solder strip clamped by the solder strip clamping device is stretched a second predetermined distance in a direction away from the solder strip clamping device.

7. A method for processing a welding strip, characterized in that: The welding strip processing method comprises: The welding strip has a special-shaped section and a flat section, and there is a node between the special-shaped section and the flat section; Clamping the pulling end of the welding ribbon and pulling it a first predetermined distance; clamping the welding ribbon at a predetermined first clamping position; Obtaining a count value, and determining whether the count value reaches a predetermined value; When the count value does not reach the predetermined value, cutting the welding ribbon at the cutting position to obtain a group of welding ribbon segments, adding 1 to the count value, and continuing to perform the step of clamping the pulling end of the welding ribbon and pulling it for the first predetermined distance; When the count value reaches the predetermined value, the clamped welding ribbon is stretched in the reverse direction so that the nth welding ribbon segment cut is extended by a preset length, and after the stretching action is completed, the welding ribbon is cut at the cutting position to obtain a group of welding ribbon segments; Setting the count value to 0, and continuing to perform the step of clamping the pulling end of the welding ribbon and pulling it for a first predetermined distance; The pulled-out welding ribbon to be cut passes through the first clamping position and the cutting position in sequence.

8. The method for processing the solder strip according to claim 7, wherein: After clamping the pulling end of the welding ribbon and pulling it by a first predetermined distance, and before clamping the welding ribbon at a predetermined first clamping position, the method further includes: Determine the welding strip to be adjusted based on the detected position of the node between the flat section and the special-shaped section on the welding strip; The welding strip to be adjusted is fed in such a way that the nodes of each welding strip are aligned in the width direction of the welding strip.

9. The method for processing the welding strip according to claim 7, wherein: The reverse stretching of the clamped welding strip comprises: Clamp the solder strip in the second clamping position, The welding ribbon clamped at the second clamping position is stretched in a direction opposite to the pulling direction by a second predetermined distance.

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