A welding ribbon cutting and switching method and cutting device

Abstract

The present invention relates to the technical field of solar cell string production, and specifically to a method and device for cutting and switching solder ribbons. The method is as follows: S1, feeding out the first end of a first solder ribbon group, so that the first end of the first solder ribbon group is longer than the first end of a second solder ribbon group; S2, pulling out the first solder ribbon group and the second solder ribbon group and cutting them in an offset manner to produce a first long solder ribbon segment group and a second long solder ribbon segment group; S3, cutting the first long solder ribbon segment group and the second long solder ribbon segment group in an offset manner; S4, feeding out the first end of the second solder ribbon group, so that the first end of the second solder ribbon group is longer than the first end of the first solder ribbon group; S5, pulling out the first solder ribbon group and the second solder ribbon group and cutting them in an offset manner to produce a third long solder ribbon segment group and a fourth long solder ribbon segment group; S6, cutting the third long solder ribbon segment group and the fourth long solder ribbon segment group in an offset manner, wherein the first solder ribbon group and the second solder ribbon group are arranged in an alternating manner. The cutting device using the above method is compatible with the production of multiple short solder ribbon segment groups required for both A string and B string BC solar cell strings.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell string production, and in particular to a welding ribbon cutting and switching method and a cutting device. Background Art

[0002] The positive and negative electrodes of the BC (Back Contact) cell are distributed in an interdigitated manner on the back of the cell. Multiple BC cells are connected in series through multiple short welding ribbon segments to form a BC battery string.

[0003] A photovoltaic module includes two BC cell strings: string A and string B. The multiple short ribbon segments in strings A and B are mirror images of each other. Each BC cell is connected to two short ribbon segments, and each short ribbon segment group contains an even number of short ribbon segments. Due to limitations in existing ribbon cutting methods, producing the multiple short ribbon segments required for strings A and B requires two sets of ribbon cutting equipment, resulting in high ribbon production costs. Summary of the Invention

[0004] The object of the present invention is to provide a method and device for cutting and switching a solder strip to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In one aspect, the present invention provides a method for cutting and switching a welding ribbon, comprising the following steps:

[0007] S1, delivering the first end of the first welding ribbon group so that the first end of the first welding ribbon group is longer than the first end of the second welding ribbon group;

[0008] S2, pulling out the first welding ribbon group and the second welding ribbon group and cutting them in an offset manner to produce a first long welding ribbon segment group and a second long welding ribbon segment group;

[0009] S3, cutting the first long welding strip segment group and the second long welding strip segment group in a staggered manner;

[0010] S4, delivering the first end of the second welding ribbon group so that the first end of the second welding ribbon group is longer than the first end of the first welding ribbon group;

[0011] S5, pulling out the first welding ribbon group and the second welding ribbon group and cutting them in an offset manner to produce a third long welding ribbon segment group and a fourth long welding ribbon segment group;

[0012] S6, cutting the third long welding ribbon segment group and the fourth long welding ribbon segment group in a staggered manner;

[0013] The order of step S3 and step S4 can be interchanged or performed simultaneously. The first welding ribbon group and the second welding ribbon group are arranged alternately. The number of welding ribbons in the first welding ribbon group and the second welding ribbon group is N, where N is a positive integer.

[0014] On the other hand, the present invention provides a cutting device, which uses the above-mentioned solder tape cutting switching method, including a first clamping hand, a second clamping hand, a cutter and a pulling hand arranged in sequence along a first horizontal direction, and a tape processing mechanism arranged below the moving path of the pulling hand; the first clamping hand can clamp or release the first solder tape group, the second clamping hand can clamp or release the second solder tape group, the pulling hand can clamp or release the first solder tape group and the second solder tape group, the first clamping hand, the second clamping hand and the pulling hand can move back and forth in the up and down directions and the first horizontal direction, the cutter is used to cut off the first solder tape group and the second solder tape group, and the tape processing mechanism is used to execute steps S3 and S6.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] In the present invention, when producing the multiple short ribbon segments required for string A, the first end of one ribbon group is fed out, causing the first ends of the two ribbon groups to be offset. The two ribbon groups are then simultaneously pulled out from one side. After two offset cuts, production is complete. When switching to producing the multiple short ribbon segments required for string B, the first end of another ribbon group is fed out, causing the first ends of the two ribbon groups to be offset. Subsequent cutting steps are then performed to complete production. Pulling two ribbon groups simultaneously from one side and preparing multiple short ribbon segments is compatible with both BC battery strings, reducing ribbon production costs. The cutting device has a simple structure and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the structure of two BC battery strings in the present invention;

[0019] Figure 2 Schematic diagram of the process of preparing the first long welding ribbon segment group and the second long welding ribbon segment group in the present invention;

[0020] Figure 3 Schematic diagram of the arrangement of the first long welding ribbon segment group and the second long welding ribbon segment group in the present invention;

[0021] Figure 4 Schematic diagram of the process of preparing the third long welding ribbon segment group and the fourth long welding ribbon segment group in the present invention;

[0022] Figure 5 Schematic diagram of the arrangement of the third and fourth long welding ribbon segment groups in the present invention;

[0023] Figure 6 Schematic diagram of the arrangement of the plurality of first short welding ribbon segment groups and the plurality of second short welding ribbon segment groups after separation in the present invention;

[0024] Figure 7 Schematic diagram of the arrangement of the plurality of third short welding ribbon segment groups and the plurality of fourth short welding ribbon segment groups after separation in the present invention;

[0025] Figure 8 Schematic diagram of the structure of the cutting device in the present invention;

[0026] Figure 9 A top view of the first embodiment of the present invention before the ribbon processing mechanism cuts off the first and second long ribbon segments;

[0027] Figure 10 A top view of the first embodiment of the present invention before the ribbon processing mechanism cuts off the third and fourth long ribbon segments;

[0028] Figure 11 A top view of a second embodiment of the present invention before the ribbon processing mechanism cuts off the first and second long ribbon segments;

[0029] Figure 12 A top view of the second embodiment of the present invention before the ribbon processing mechanism cuts off the third and fourth long ribbon segments;

[0030] Figure 13 A bottom view of a first embodiment of the present invention in which a belt transport mechanism clamps a first short welding belt segment group and a second short welding belt;

[0031] Figure 14 A bottom view of a first embodiment of the present invention showing a belt transport mechanism clamping a third short welding belt segment group and a fourth short welding belt;

[0032] Figure 15 A bottom view of a second embodiment of the present invention in which a belt transport mechanism clamps a first short welding belt segment group and a second short welding belt;

[0033] Figure 16 This is a bottom view of a second embodiment of the present invention showing a belt transport mechanism clamping a third short welding belt segment group and a fourth short welding belt.

[0034] Wherein: 100, first welding ribbon group; 110, first long welding ribbon segment group; 111, first short welding ribbon segment group; 120, third long welding ribbon segment group; 121, third short welding ribbon segment group; 200, second welding ribbon group; 210, second long welding ribbon segment group; 211, second short welding ribbon segment group; 220, fourth long welding ribbon segment group; 221, fourth short welding ribbon segment group; 300, first clamping hand; 400, second clamping hand; 500, cutter; 600, pulling hand; 700, ribbon handling mechanism; 710, moving platform; 720, first mounting base; 721, first clamp; 722, first cutting point; 730, second mounting base; 731. Second clamp; 732. Second cutting point; 740. Head end mounting seat; 741. Third clamp; 750. Tail end mounting seat; 751. Fourth clamp; 800. Belt transport mechanism; 810. Moving beam; 820. First clamping seat; 821. Fifth clamp; 830. Second clamping seat; 831. Sixth clamp; 840. Head end clamping seat; 841. Seventh clamp; 850. Tail end clamping seat; 851. Eighth clamp; A. Reference position; B1. First front clamping position; B2. Second front clamping position; C. Rear clamping position; D. Front cutting position; E1. First rear cutting position; E2. Second rear cutting position. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1 As shown, the structure of two BC battery strings is illustrated, one of which is string A and the other is string B, with short welding ribbon segments connected to the back of the BC battery cells.

[0037] In the present invention, each welding ribbon is provided by a welding ribbon roll, and multiple welding ribbon rolls simultaneously provide multiple welding ribbons. The first ends of the multiple welding ribbons are parallel to each other, and the first ends of the welding ribbons, as the ends to be pulled, are free ends. In the present invention, the welding ribbons are divided into a first welding ribbon group 100 and a second welding ribbon group 200. The first welding ribbon group 100 and the second welding ribbon group 200 are arranged in a staggered manner, wherein the first welding ribbon group 100 includes welding ribbons in odd-numbered positions and the second welding ribbon group 200 includes welding ribbons in even-numbered positions, or the first welding ribbon group 100 includes welding ribbons in even-numbered positions and the second welding ribbon group 200 includes welding ribbons in odd-numbered positions. The number of welding ribbons in the first welding ribbon group 100 and the second welding ribbon group 200 is N, where N is a positive integer.

[0038] The method for cutting and switching the welding ribbon provided by the present invention can switch between multiple short welding ribbon segment groups required for preparing two types of BC battery strings, string A and string B, and includes the following steps:

[0039] S1, such as Figure 2 (a) and Figure 2 As shown in (b), the first end of the first welding ribbon group 100 is fed out, so that the first end of the first welding ribbon group 100 is longer than the first end of the second welding ribbon group 200;

[0040] S2, such as Figure 2 (c) and Figure 3 As shown, the first welding ribbon group 100 and the second welding ribbon group 200 are pulled out and staggered and cut to produce the first long welding ribbon segment group 110 and the second long welding ribbon segment group 210;

[0041] S3, staggered cutting of the first long welding ribbon segment group 110 and the second long welding ribbon segment group 210;

[0042] S4, such as Figure 4 (a) and Figure 4 As shown in (b), the first end of the second welding ribbon group 200 is fed out, so that the first end of the second welding ribbon group 200 is longer than the first end of the first welding ribbon group 100;

[0043] S5, such as Figure 4 (c) and Figure 5 As shown, the first welding ribbon group 100 and the second welding ribbon group 200 are pulled out and staggered and cut to produce the third long welding ribbon segment group 120 and the fourth long welding ribbon segment group 220;

[0044] S6, staggered cutting of the third long welding ribbon segment group 120 and the fourth long welding ribbon segment group 220;

[0045] Among them, the order of step S3 and step S4 can be interchanged or performed simultaneously. In step S3 or step S6, each long welding ribbon segment group is cut according to the preset position to produce multiple short welding ribbon segment groups required for the BC battery string, and each long welding ribbon segment is cut into several short welding ribbon segments. In the present invention, two welding ribbon groups are pulled out from one side at the same time and multiple short welding ribbon segment groups are prepared. The direction indicated by the first end of the welding ribbon is the first horizontal direction, that is, the direction in which the welding ribbon is pulled out. After executing steps S1-step S3, multiple short welding ribbon segment groups required for the first type of BC battery string are produced. After executing steps S4-step S6, multiple short welding ribbon segment groups required for the second type of BC battery string are produced. If the multiple short welding ribbon segment groups required for the preparation of two types of BC battery strings are switched, then the execution of steps S1-S3 and steps S4-S6 is switched.

[0046] In step S1, before the first and second welding ribbon sets 100 and 200 are pulled out, the first end of the first welding ribbon set 100 is in the first front clamping position B1, and the first end of the second welding ribbon set 200 is in the rear clamping position C. In step S4, before the first and second welding ribbon sets 100 and 200 are pulled out, the first end of the second welding ribbon set 200 is in the second front clamping position B2, and the first end of the first welding ribbon set 100 is in the rear clamping position C. The first front clamping position B1 and the second front clamping position B2 may be located at the same or different positions, and the distance between the first front clamping position B1 and the rear clamping position C, or the distance between the second front clamping position B2 and the rear clamping position C, is related to the length of the extended welding ribbon at the end of the BC battery string, which is the portion of the welding ribbon welded to the busbar.

[0047] In step S2, the first welding ribbon set 100 is cut at the front cutting position D, and the second welding ribbon set 200 is cut at the first rear cutting position E1. In step S5, the second welding ribbon set 200 is cut at the front cutting position D, and the first welding ribbon set 100 is cut at the second rear cutting position E2. The first rear cutting position E1 and the second rear cutting position E2 may be located at the same or different positions. The distance between the first rear cutting position E1 and the front cutting position D, or the distance between the second rear cutting position E2 and the front cutting position D, is also related to the length of the extended welding ribbon at the end of the BC battery string. The extended welding ribbon is the portion of the welding ribbon welded to the busbar.

[0048] Before executing step S1 or step S4, the first end of the first welding ribbon set 100 and the first end of the second welding ribbon set 200 are adjusted to the reference position A. Setting the reference position A allows for observation of whether the ends of the first welding ribbon set 100 and the second welding ribbon set 200 are aligned, and the first welding ribbon set 100 or the second welding ribbon set 200 are fed to a preset length from the same position, thereby improving ribbon production accuracy.

[0049] It should be noted that the reference position A has no specific relationship with the first front clamping position B1, the second front clamping position B2 and the rear clamping position C, or with the cutting position D, the first rear cutting position E1 and the second rear cutting position E2.

[0050] like Figure 6 and Figure 7As shown, in the present invention, the first long welding ribbon segment group 110 and the fourth long welding ribbon segment group 220 are cut at the same position, and the second long welding ribbon segment group 210 and the third long welding ribbon segment group 120 are cut at the same position. After executing step S3, a plurality of first short welding ribbon segment groups 111 and a plurality of second short welding ribbon segment groups 211 are produced. The ends of the first short welding ribbon segment group 111 and the second short welding ribbon segment group 211 are staggered with each other. In the length direction of the welding ribbon, the plurality of first short welding ribbon segment groups 111 and the plurality of second short welding ribbon segment groups 211 are separated. The second short ribbon segment groups 211 are the multiple short ribbon segment groups required for one type of BC battery string. After executing step S6, multiple third short ribbon segment groups 121 and multiple fourth short ribbon segment groups 221 are produced. The ends of the third short ribbon segment groups 121 and the fourth short ribbon segment groups 221 are offset from each other. The multiple third short ribbon segment groups 121 and the multiple fourth short ribbon segment groups 221 are separated along the length of the ribbon. The multiple third short ribbon segment groups 121 and the multiple fourth short ribbon segment groups 221 are the multiple short ribbon segment groups required for another type of BC battery string. The multiple short ribbon segment groups produced after executing step S3 or step S6 are adjusted to meet the distance requirements between the multiple short ribbon segment groups in the BC battery string and can be directly laid together with the battery cells.

[0051] like Figure 8 As shown, the present invention also provides a cutting device, which uses the above-mentioned solder tape cutting switching method, including a first clamping hand 300, a second clamping hand 400, a cutter 500 and a pulling hand 600 arranged in sequence along the first horizontal direction, and a tape processing mechanism 700 arranged below the moving path of the pulling hand 600; the first clamping hand 300 can clamp or release the first solder tape group 100, the second clamping hand 400 can clamp or release the second solder tape group 200, and the pulling hand 600 can clamp or release the first solder tape group 100 and the second solder tape group 200, the first clamping hand 300, the second clamping hand 400 and the pulling hand 600 can move back and forth in the up and down directions and the first horizontal direction, the cutter 500 is used to cut off the first solder tape group 100 and the second solder tape group 200, and the tape processing mechanism 700 is used to execute steps S3 and S6. The N clamps on the first clamping hand 300 are used to clamp the first solder tape group 100, the N clamps on the second clamping hand 400 are used to clamp the second solder tape group 200, and the 2N clamps on the pulling hand 600 clamp all the solder tapes at the same time. The cutter 500 is provided with N notches. When one of the solder tape groups is cut, the other solder tape group is located in the notch. The cutter 500 can be provided with two front and back, respectively used to cut two solder tape groups, or only one, and the cutter 500 can be moved to align with different solder tape groups at different cutting positions.

[0052] The process of the cutting device executing the above-mentioned welding ribbon cutting switching method is as follows:

[0053] When step S1 is executed, the first ends of the two solder ribbon groups are aligned, the first clamping hand 300 and the second clamping hand 400 clamp the first solder ribbon group 100 and the second solder ribbon group 200 respectively, and the first ends of the two solder ribbon groups pass through the first clamping hand 300 and the second clamping hand 400, and the first clamping hand 300 moves along the first horizontal direction to deliver the first end of the first solder ribbon group 100;

[0054] When step S2 is executed correspondingly, the tape pulling hand 600 simultaneously clamps the first ends of the first soldering tape group 100 and the second soldering tape group 200, the first clamping hand 300 and the second clamping hand 400 release the clamped soldering tape groups, and the tape pulling hand 600 moves along the first horizontal direction to pull out the first soldering tape group 100 and the second soldering tape group 200 at the same time, the first clamping hand 300 clamps the first soldering tape group 100 again, and the second clamping hand 400 clamps the second soldering tape group 200 again, and the first clamping hand 300, the second clamping hand 400 and the tape pulling hand 600 clamp the corresponding soldering tape groups and move downward close to the tape processing mechanism 700. After the tape processing mechanism 700 clamps the pulled-out parts of the two soldering tape groups, the cutter 500 cuts off the first soldering tape group 100 and the second soldering tape group 200 at the front and rear positions to respectively produce the first long soldering tape segment group 110 and the second long soldering tape segment group 210;

[0055] When step S3 is executed, after the pulling hand 600 releases the first ends of the first long welding ribbon segment group 110 and the second long welding ribbon segment group 210, the first clamping hand 300, the second clamping hand 400 and the pulling hand 600 move upward, and the ribbon processing mechanism 700 offsets and cuts the first long welding ribbon segment group 110 and the second long welding ribbon segment group 210;

[0056] When step S4 is executed, the positions of the first clamping hand 300 and the second clamping hand 400 are adjusted so that the first ends of the two solder ribbon groups are flush, and the second clamping hand 400 moves along the first horizontal direction to deliver the first end of the second solder ribbon group 200;

[0057] When step S5 is executed correspondingly, the tape pulling hand 600 simultaneously clamps the first ends of the first soldering tape group 100 and the second soldering tape group 200, the first clamping hand 300 and the second clamping hand 400 release the clamped soldering tape groups, and the tape pulling hand 600 moves along the first horizontal direction to pull out the first soldering tape group 100 and the second soldering tape group 200 at the same time, the first clamping hand 300 clamps the first soldering tape group 100 again, and the second clamping hand 400 clamps the second soldering tape group 200 again, and the first clamping hand 300, the second clamping hand 400 and the tape pulling hand 600 clamp the corresponding soldering tape groups and move downward close to the tape processing mechanism 700. After the tape processing mechanism 700 clamps the pulled-out parts of the two soldering tape groups, the cutter 500 cuts off the second soldering tape group 200 and the first soldering tape group 100 at the front and rear positions to respectively produce the fourth long soldering tape segment group 220 and the third long soldering tape segment group 120;

[0058] When step S6 is executed correspondingly, after the pulling hand 600 releases the first ends of the third long welding ribbon segment group 120 and the fourth long welding ribbon segment group 220, the first clamping hand 300, the second clamping hand 400 and the pulling hand 600 move upward, and the ribbon processing mechanism 700 offsets and cuts off the third long welding ribbon segment group 120 and the fourth long welding ribbon segment group 220.

[0059] like Figure 9 and Figure 10As shown, in the first embodiment of the present invention, the belt processing mechanism 700 includes a movable platform 710 and a head end mounting seat 740, an intermediate mounting seat and a tail end mounting seat 750 arranged on the movable platform 710; along the first horizontal direction, the head end mounting seat 740, the intermediate mounting seat and the tail end mounting seat 750 are arranged in sequence, the intermediate mounting seat includes M first mounting seats 720 and M second mounting seats 730, and the first mounting seats 720 and the second mounting seats 730 are alternately arranged along the first horizontal direction; along the first horizontal direction, two first clamping groups are provided on the first mounting seat 720, two second clamping groups are provided on the second mounting seat 730, two third clamping groups are provided on the head end mounting seat 740, and two fourth clamping groups are provided on the tail end mounting seat 750, each first clamping group includes N+1 first clamps 721 arranged along the second horizontal direction, each second clamping group includes N second clamps 731 arranged along the second horizontal direction, and each third clamping group includes N+1 first clamps 721 arranged along the second horizontal direction The third clamp 741 is arranged in a first horizontal direction, and each fourth clamp group includes N fourth clamps 751 arranged along the second horizontal direction; along the second horizontal direction, the first mounting seat 720 is also provided with N first cutting points 722, and the N first cutting points 722 are located between the two first clamp groups, and the second mounting seat 730 is also provided with N+1 second cutting points 732, and the N+1 second cutting points 732 are located between the two second clamp groups; the first cutting points 722, the second clamp 731 and the fourth clamp 751 are aligned in the first horizontal direction, the second cutting points 732, the first clamp 721 and the third clamp 741 are aligned in the first horizontal direction, and the first cutting points 722 and the second cutting points 732 are arranged alternately; the movable platform 710 can move back and forth in the up and down directions and the second horizontal direction, and the head end mounting seat 740, the first mounting seat 720, the second mounting seat 730 and the tail end mounting seat 750 can move back and forth in the first horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and M is a positive integer. In this embodiment, the first N first clamps 721 in each first clamp group and the first N third clamps 741 in each third clamp group are used to clamp the first long weld ribbon segment group 110, and the last N first clamps 721 in each first clamp group and the last N third clamps 741 in each third clamp group are used to clamp the fourth long weld ribbon segment group 220; the N second clamps 731 in each second clamp group and the N fourth clamps 751 in each fourth clamp group are used to clamp the second long weld ribbon segment group 210 and the third long weld ribbon segment group 120; the N first cutting points 722 on each first mounting seat 720 are used to cut off the second long weld ribbon segment group 210 and the third long weld ribbon segment group 120, the first N second cutting points 732 on each second mounting seat 730 are used to cut off the first long weld ribbon segment group 110, and the last N second cutting points 732 on each second mounting seat 730 are used to cut off the fourth long weld ribbon segment group 220.After the first and second cutting points 722 and 732 cut the corresponding long ribbon segments into short ribbon segments, the head mounting base 740 , the middle mounting base and the tail mounting base 750 move away from each other to adjust the distance between the multiple short ribbon segments.

[0060] like Figure 11 and Figure 12As shown, in the second embodiment of the present invention, the belt processing mechanism 700 includes a movable platform 710 and a head-end mounting seat 740, an intermediate mounting seat and a tail-end mounting seat 750 arranged on the movable platform 710; along the first horizontal direction, the head-end mounting seat 740, the intermediate mounting seat and the tail-end mounting seat 750 are arranged in sequence, the intermediate mounting seat includes M first mounting seats 720 and M second mounting seats 730, and the first mounting seats 720 and the second mounting seats 730 are alternately arranged along the first horizontal direction; along the first horizontal direction, two first clamping groups are provided on the first mounting seat 720, two second clamping groups are provided on the second mounting seat 730, two third clamping groups are provided on the head-end mounting seat 740, and two fourth clamping groups are provided on the tail-end mounting seat 750, each first clamping group includes N first clamps 721 arranged along the second horizontal direction, each second clamping group includes N+1 second clamps 731 arranged along the second horizontal direction, and each third clamping group includes N first clamps 721 arranged along the second horizontal direction. The third clamp 741, each fourth clamp group includes N+1 fourth clamps 751 arranged along the second horizontal direction; along the second horizontal direction, the first mounting seat 720 is also provided with N+1 first cutting points 722, and the N+1 first cutting points 722 are located between the two first clamp groups. The second mounting seat 730 is also provided with N second cutting points 732, and the N second cutting points 732 are located between the two second clamp groups; the first cutting points 722, the second clamp 731 and the fourth clamp 751 are aligned in the first horizontal direction, the second cutting points 732, the first clamp 721 and the third clamp 741 are aligned in the first horizontal direction, and the first cutting points 722 and the second cutting points 732 are arranged alternately; the movable platform 710 can move back and forth in the up and down direction and the second horizontal direction, and the head end mounting seat 740, the first mounting seat 720, the second mounting seat 730 and the tail end mounting seat 750 can move back and forth along the first horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and M is a positive integer. In this embodiment, the N first clamps 721 in each first clamp group and the N third clamps 741 in each third clamp group are used to clamp the first long weld ribbon segment group 110 and the fourth long weld ribbon segment group 220; the last N second clamps 731 in each second clamp group and the last N fourth clamps 751 in each fourth clamp group are used to clamp the second long weld ribbon segment group 210, and the first N second clamps 731 in each second clamp group and the first N fourth clamps 751 in each fourth clamp group are used to clamp the third long weld ribbon segment group 120; the last N first cutting points 722 on each first mounting seat 720 are used to cut off the second long weld ribbon segment group 210, the first N first cutting points 722 on each first mounting seat 720 are used to cut off the third long weld ribbon segment group 120, and the N second cutting points 732 on each second mounting seat 730 are used to cut off the first long weld ribbon segment group 110 and the fourth long weld ribbon segment group 220.After the first and second cutting points 722 and 732 cut the corresponding long ribbon segments into short ribbon segments, the head mounting base 740 , the middle mounting base and the tail mounting base 750 move away from each other to adjust the distance between the multiple short ribbon segments.

[0061] like Figure 13 and Figure 14 As shown, in the first embodiment of the present invention, the cutting device also includes a belt conveyor mechanism 800, which includes a moving beam 810 and a head end clamping seat 840, an intermediate clamping seat and a tail end clamping seat 850 arranged at the bottom of the moving beam 810; along the first horizontal direction, the head end clamping seat 840, the intermediate clamping seat and the tail end clamping seat 850 are arranged in sequence, and the intermediate clamping seat includes M first clamping seats 820 and M second clamping seats 830, and the first clamping seats 820 and the second clamping seats 830 are arranged alternately along the first horizontal direction; along the first horizontal direction, two fifth clamping groups are provided at the bottom of the first clamping seat 820, and two sixth clamping groups are provided at the bottom of the second clamping seat 830, and each fifth clamping group includes N clamping groups arranged along the second horizontal direction The fifth clamp 821, each sixth clamp group includes N+1 sixth clamps 831 arranged along the second horizontal direction, 2N+1 seventh clamps 841 are provided at the bottom of the head end clamping seat 840, and 2N+1 eighth clamps 851 are provided at the bottom of the tail end clamping seat 850; the N fifth clamps 821 at the bottom of each first clamping seat 820 are aligned with the N seventh clamps 841 and the N eighth clamps 851 in the first horizontal direction, the N+1 sixth clamps 831 at the bottom of each second clamping seat 830 are aligned with the N+1 seventh clamps 841 and the N+1 eighth clamps 851 in the first horizontal direction, and the fifth clamps 821 and the sixth clamps 831 are arranged in an staggered manner; the movable beam 810 can move back and forth in the up and down directions and the second horizontal direction. In this embodiment, the N fifth clamps 821, the N even-numbered seventh clamps 841, and the N even-numbered eighth clamps 851 in each fifth clamp group are used to clamp the second short weld ribbon segment group 211 and the third short weld ribbon segment group 121. The first N sixth clamps 831, the first N odd-numbered seventh clamps 841, and the first N odd-numbered eighth clamps 851 in each sixth clamp group are used to clamp the first short weld ribbon segment group 111. The last N sixth clamps 831, the last N odd-numbered seventh clamps 841, and the last N odd-numbered eighth clamps 851 in each sixth clamp group are used to clamp the fourth short weld ribbon segment group 221. In other embodiments, the N+1 seventh clamps 841 can be arranged in two rows, and the N+1 eighth clamps 851 can also be arranged in two rows.

[0062] like Figure 15 and Figure 16As shown, in the second embodiment of the present invention, the cutting device also includes a belt conveyor mechanism 800, which includes a moving beam 810 and a head end clamping seat 840, an intermediate clamping seat and a tail end clamping seat 850 arranged at the bottom of the moving beam 810; along the first horizontal direction, the head end clamping seat 840, the intermediate clamping seat and the tail end clamping seat 850 are arranged in sequence, and the intermediate clamping seat includes M first clamping seats 820 and M second clamping seats 830, and the first clamping seats 820 and the second clamping seats 830 are arranged alternately along the first horizontal direction; along the first horizontal direction, two fifth clamping groups are provided at the bottom of the first clamping seat 820, and two sixth clamping groups are provided at the bottom of the second clamping seat 830, and each fifth clamping group includes N+1 clamping groups arranged along the second horizontal direction. The fifth clamp 821 is arranged in a circle, and each sixth clamp group includes N sixth clamps 831 arranged along the second horizontal direction. The bottom of the head end clamping seat 840 is provided with 2N+1 seventh clamps 841, and the bottom of the tail end clamping seat 850 is provided with 2N+1 eighth clamps 851; the N+1 fifth clamps 821 at the bottom of each first clamping seat 820 are aligned with the N+1 seventh clamps 841 and the N+1 eighth clamps 851 in the first horizontal direction, and the N sixth clamps 831 at the bottom of each second clamping seat 830 are aligned with the N seventh clamps 841 and the N eighth clamps 851 in the first horizontal direction, and the fifth clamps 821 and the sixth clamps 831 are arranged in an alternating manner; the movable beam 810 can move back and forth in the up and down directions and the second horizontal direction. In this embodiment, the first N fifth clamps 821, the first N odd-numbered seventh clamps 841, and the first N odd-numbered eighth clamps 851 in each fifth clamp group are used to clamp the third short solder ribbon segment group 121. The last N fifth clamps 821, the last N odd-numbered seventh clamps 841, and the last N odd-numbered eighth clamps 851 in each fifth clamp group are used to clamp the second short solder ribbon segment group 211. The N sixth clamps 831, the N even-numbered seventh clamps 841, and the N even-numbered eighth clamps 851 in each sixth clamp group are used to clamp the first short solder ribbon segment group 111 and the fourth short solder ribbon segment group 221. In other embodiments, the N+1 seventh clamps 841 can be arranged in two rows, and the N+1 eighth clamps 851 can also be arranged in two rows.

[0063] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A method for cutting and switching a welding ribbon, characterized in that: The following steps are involved: S1, delivering the first end of the first welding tape group (100) so that the first end of the first welding tape group (100) extends beyond the first end of the second welding tape group (200); S2, pulling out the first welding ribbon group (100) and the second welding ribbon group (200) and cutting them in an offset manner to produce a first long welding ribbon segment group (110) and a second long welding ribbon segment group (210); S3, staggering and cutting the first long welding strip segment group (110) and the second long welding strip segment group (210); S4, sending out the first end of the second welding tape group (200), so that the first end of the second welding tape group (200) is longer than the first end of the first welding tape group (100); S5, pulling out the first welding ribbon group (100) and the second welding ribbon group (200) and cutting them in an offset manner to produce a third long welding ribbon segment group (120) and a fourth long welding ribbon segment group (220); S6, staggering and cutting the third long welding strip segment group (120) and the fourth long welding strip segment group (220); The first long welding strip segment group (110) and the fourth long welding strip segment group (220) are cut at the same position, and the second long welding strip segment group (210) and the third long welding strip segment group (120) are cut at the same position. After executing step S3, a plurality of first short welding strip segment groups (111) and a plurality of second short welding strip segment groups (211) are produced. The ends of the first short welding strip segment group (111) and the second short welding strip segment group (211) are staggered with each other. In the length direction of the welding strip, the plurality of first short welding strip segment groups (111) and the plurality of second short welding strip segment groups (211) are separated. After executing step S6, , producing a plurality of third short welding ribbon segment groups (121) and a plurality of fourth short welding ribbon segment groups (221), wherein the ends of the third short welding ribbon segment groups (121) and the fourth short welding ribbon segment groups (221) are staggered with each other, and in the length direction of the welding ribbon, the plurality of the third short welding ribbon segment groups (121) and the plurality of the fourth short welding ribbon segment groups (221) are separated; the order of step S3 and step S4 can be interchanged or performed simultaneously, the first welding ribbon group (100) and the second welding ribbon group (200) are arranged in an alternating manner, and the number of welding ribbons in the first welding ribbon group (100) and the second welding ribbon group (200) is N, where N is a positive integer.

2. The method for cutting and switching the solder ribbon according to claim 1, wherein: In step S1, before the first welding ribbon group (100) and the second welding ribbon group (200) are pulled out, the first end of the first welding ribbon group (100) is in a first front clamping position (B1), and the first end of the second welding ribbon group (200) is in a rear clamping position (C); in step S4, before the first welding ribbon group (100) and the second welding ribbon group (200) are pulled out, the first end of the second welding ribbon group (200) is in a second front clamping position (B2), and the first end of the first welding ribbon group (100) is in a rear clamping position (C).

3. The method for cutting and switching the solder ribbon according to claim 1, wherein: In step S2, the first soldering ribbon group (100) is cut at a front cutting position (D), and the second soldering ribbon group (200) is cut at a first rear cutting position (E1); in step S5, the second soldering ribbon group (200) is cut at the front cutting position (D), and the first soldering ribbon group (100) is cut at a second rear cutting position (E2).

4. The method for cutting and switching the solder ribbon according to claim 3, wherein: Before executing step S1 or step S4, the first end of the first welding ribbon group (100) and the first end of the second welding ribbon group (200) are adjusted to a reference position (A).

5. A cutting device, characterized in that: The method for cutting and switching the solder tape according to any one of claims 1 to 4 comprises a first clamping hand (300), a second clamping hand (400), a cutter (500) and a pulling hand (600) arranged in sequence along a first horizontal direction, and a tape processing mechanism (700) arranged below the moving path of the pulling hand (600); the first clamping hand (300) can clamp or release the first solder tape group (100), the second clamping hand (400) can clamp or release the second solder tape group ( 200), the strap hand (600) can clamp or release the first solder tape group (100) and the second solder tape group (200), the first clamping hand (300), the second clamping hand (400) and the strap hand (600) can reciprocate along the up and down directions and the first horizontal direction, the cutter (500) is used to cut the first solder tape group (100) and the second solder tape group (200), and the tape processing mechanism (700) is used to execute step S3 and step S6.

6. The cutting device according to claim 5, characterized in that: The belt processing mechanism (700) includes a movable platform (710) and a head-end mounting seat (740), an intermediate mounting seat and a tail-end mounting seat (750) arranged on the movable platform (710); along the first horizontal direction, the head-end mounting seat (740), the intermediate mounting seat and the tail-end mounting seat (750) are arranged in sequence, the intermediate mounting seat includes M first mounting seats (720) and M second mounting seats (730), and the first mounting seats (720) and the second mounting seats (730) are arranged alternately along the first horizontal direction; along the first horizontal direction, the Two first clamp groups are provided on the first mounting seat (720), two second clamp groups are provided on the second mounting seat (730), two third clamp groups are provided on the head end mounting seat (740), and two fourth clamp groups are provided on the tail end mounting seat (750), each of the first clamp groups includes N+1 first clamps (721) arranged along the second horizontal direction, each of the second clamp groups includes N second clamps (731) arranged along the second horizontal direction, each of the third clamp groups includes N+1 third clamps (741) arranged along the second horizontal direction, and each of the fourth clamp groups includes N+1 third clamps (741) arranged along the second horizontal direction. The clamp group includes N fourth clamps (751) arranged along the second horizontal direction; along the second horizontal direction, the first mounting seat (720) is further provided with N first cutting points (722), and the N first cutting points (722) are located between the two first clamp groups; the second mounting seat (730) is further provided with N+1 second cutting points (732), and the N+1 second cutting points (732) are located between the two second clamp groups; the first cutting points (722), the second clamp (731) and the fourth clamp (751) are aligned in the first horizontal direction , the second cutting point (732), the first clamp (721) and the third clamp (741) are aligned in the first horizontal direction, and the first cutting point (722) and the second cutting point (732) are arranged alternately; the movable platform (710) can move back and forth along the up and down directions and the second horizontal direction, the head end mounting seat (740), the first mounting seat (720), the second mounting seat (730) and the tail end mounting seat (750) can move back and forth along the first horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and M is a positive integer.

7. The cutting device according to claim 5, characterized in that: The belt processing mechanism (700) includes a movable platform (710) and a head-end mounting seat (740), an intermediate mounting seat and a tail-end mounting seat (750) arranged on the movable platform (710); along the first horizontal direction, the head-end mounting seat (740), the intermediate mounting seat and the tail-end mounting seat (750) are arranged in sequence, the intermediate mounting seat includes M first mounting seats (720) and M second mounting seats (730), and the first mounting seats (720) and the second mounting seats (730) are arranged alternately along the first horizontal direction; along the first horizontal direction, the Two first clamp groups are provided on the first mounting seat (720), two second clamp groups are provided on the second mounting seat (730), two third clamp groups are provided on the head end mounting seat (740), and two fourth clamp groups are provided on the tail end mounting seat (750), each of the first clamp groups includes N first clamps (721) arranged along the second horizontal direction, each of the second clamp groups includes N+1 second clamps (731) arranged along the second horizontal direction, each of the third clamp groups includes N third clamps (741) arranged along the second horizontal direction, and each of the fourth clamps The group includes N+1 fourth clamps (751) arranged along the second horizontal direction; along the second horizontal direction, the first mounting seat (720) is further provided with N+1 first cutting points (722), and the N+1 first cutting points (722) are located between the two first clamp groups, and the second mounting seat (730) is further provided with N second cutting points (732), and the N second cutting points (732) are located between the two second clamp groups; the first cutting points (722), the second clamp (731) and the fourth clamp (751) are aligned in the first horizontal direction , the second cutting point (732), the first clamp (721) and the third clamp (741) are aligned in the first horizontal direction, and the first cutting point (722) and the second cutting point (732) are arranged alternately; the movable platform (710) can move back and forth along the up and down directions and the second horizontal direction, the head end mounting seat (740), the first mounting seat (720), the second mounting seat (730) and the tail end mounting seat (750) can move back and forth along the first horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and M is a positive integer.

8. The cutting device according to claim 6, characterized in that: The belt conveyor mechanism (800) further comprises a moving beam (810) and a head end clamping seat (840), an intermediate clamping seat and a tail end clamping seat (850) arranged at the bottom of the moving beam (810); along the first horizontal direction, the head end clamping seat (840), the intermediate clamping seat and the tail end clamping seat (850) are arranged in sequence, and the intermediate clamping seat comprises M first clamping seats (820) and M second clamping seats (830), and the first clamping seat (820) and the second clamping seat (830) are arranged alternately along the first horizontal direction; along the first horizontal direction, two fifth clamping groups are provided at the bottom of the first clamping seat (820), and two sixth clamping groups are provided at the bottom of the second clamping seat (830), and each of the fifth clamping groups comprises N fifth clamps (821) arranged along the second horizontal direction, and each of the fifth clamping groups comprises N fifth clamps (821) arranged along the second horizontal direction. The sixth clamp group includes N+1 sixth clamps (831) arranged along the second horizontal direction, 2N+1 seventh clamps (841) are provided at the bottom of the head end clamping seat (840), and 2N+1 eighth clamps (851) are provided at the bottom of the tail end clamping seat (850); the N fifth clamps (821) at the bottom of each first clamping seat (820) are aligned with the N seventh clamps (841) and the N eighth clamps (851) in the first horizontal direction, the N+1 sixth clamps (831) at the bottom of each second clamping seat (830) are aligned with the N+1 seventh clamps (841) and the N+1 eighth clamps (851) in the first horizontal direction, and the fifth clamps (821) and the sixth clamps (831) are arranged in an alternating manner; the movable beam (810) can move back and forth in the up and down directions and the second horizontal direction.

9. The cutting device according to claim 7, characterized in that: The belt conveyor mechanism (800) further comprises a moving beam (810) and a head end clamping seat (840), an intermediate clamping seat and a tail end clamping seat (850) arranged at the bottom of the moving beam (810); along the first horizontal direction, the head end clamping seat (840), the intermediate clamping seat and the tail end clamping seat (850) are arranged in sequence, and the intermediate clamping seat comprises M first clamping seats (820) and M second clamping seats (830), and the first clamping seat (820) and the second clamping seat (830) are arranged alternately along the first horizontal direction; along the first horizontal direction, two fifth clamping groups are provided at the bottom of the first clamping seat (820), and two sixth clamping groups are provided at the bottom of the second clamping seat (830), and each of the fifth clamping groups comprises N+1 fifth clamps (821) arranged along the second horizontal direction, and each sixth clamping group comprises N+1 fifth clamps (821) arranged along the second horizontal direction. The sixth clamp group includes N sixth clamps (831) arranged along the second horizontal direction, 2N+1 seventh clamps (841) are provided at the bottom of the head end clamping seat (840), and 2N+1 eighth clamps (851) are provided at the bottom of the tail end clamping seat (850); the N+1 fifth clamps (821) at the bottom of each first clamping seat (820) are aligned with the N+1 seventh clamps (841) and the N+1 eighth clamps (851) in the first horizontal direction, the N sixth clamps (831) at the bottom of each second clamping seat (830) are aligned with the N seventh clamps (841) and the N eighth clamps (851) in the first horizontal direction, and the fifth clamps (821) and the sixth clamps (831) are arranged in an alternating manner; the movable beam (810) can move back and forth in the up and down directions and the second horizontal direction.

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