Solder strip cutting switching method and cutting device

Abstract

The invention relates to the technical field of solar cell string production, in particular to a welding strip cutting switching method and a cutting device. The method comprises the following steps that S1, the first end of a first welding strip set is sent out, and the first end of the first welding strip set is longer than the first end of a second welding strip set; s2, the first welding strip set and the second welding strip set are pulled out and cut off in a staggered mode to form a first long welding strip section set and a second long welding strip section set; s3, cutting off the first long welding strip section group and the second long welding strip section group in a staggered manner; s4, the first end of the second welding strip set is sent out, and the first end of the second welding strip set is longer than the first end of the first welding strip set; s5, the first welding strip set and the second welding strip set are pulled out and cut off in a staggered mode, and a third long welding strip section set and a fourth long welding strip section set are manufactured; and S6, the third long welding strip section set and the fourth long welding strip section set are cut off in a staggered mode, and the first welding strip section set and the second welding strip section set are arranged in a staggered mode. The cutting device using the method is compatible with a plurality of short welding strip section groups required for manufacturing two BC battery strings, namely the A string and the B string.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell string production, and particularly relates to a method and device for cutting and switching solder tapes. Background Art

[0002] The positive and negative electrodes of BC (Back Contact) solar cells are distributed in a cross-finger pattern on the back of the solar cell. Multiple BC solar cells are connected in series by multiple short solder tape segments to form a BC solar cell string.

[0003] In a photovoltaic module, there are two types of BC solar cell strings. One type of BC solar cell string is string A, and the other type is string B. The multiple short solder tape segments in string A and string B are mirror images of each other. Each BC solar cell is connected to two short solder tape segment groups, and each short solder tape segment group contains an even number of short solder tape segments. Limited by the existing tape cutting method, for example, for the multiple short solder tape segment groups required to make string A and string B, two sets of solder tape cutting devices are needed, resulting in high tape production costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a method and device for cutting and switching solder tapes to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: On the one hand, the present invention provides a method for cutting and switching solder tapes, including the following steps: S1, feeding out the first end of the first solder tape group so that the first end of the first solder tape group extends beyond the first end of the second solder tape group; S2, pulling out the first solder tape group and the second solder tape group and cutting them offset to produce a first long solder tape segment group and a second long solder tape segment group; S3, cutting the first long solder tape segment group and the second long solder tape segment group offset; S4, feeding out the first end of the second solder tape group so that the first end of the second solder tape group extends beyond the first end of the first solder tape group; S5, pulling out the first solder tape group and the second solder tape group and cutting them offset to produce a third long solder tape segment group and a fourth long solder tape segment group; S6, cutting the third long solder tape segment group and the fourth long solder tape segment group offset; Wherein, the order of step S3 and step S4 can be exchanged or they can be carried out simultaneously. The first solder tape group and the second solder tape group are arranged alternately, and the number of solder tapes in both the first solder tape group and the second solder tape group is N, where N is a positive integer.

[0006] On the other hand, the present invention provides a cutting device that uses the above-mentioned solder tape cutting and switching method, including a first tape gripper, a second tape gripper, a cutter, and a tape pulling hand arranged in sequence along the first horizontal direction, and a tape processing mechanism arranged below the moving path of the tape pulling hand; the first tape gripper can clamp or release the first solder tape group, the second tape gripper can clamp or release the second solder tape group, the tape pulling hand can clamp or release the first solder tape group and the second solder tape group, the first tape gripper, the second tape gripper, and the tape pulling hand can reciprocate along the vertical direction and the first horizontal direction, the cutter is used to cut the first solder tape group and the second solder tape group, and the tape processing mechanism is used to execute step S3 and step S6.

[0007] The present invention has achieved the following technical effects compared with the prior art: In the present invention, when making multiple short solder tape segment groups required for an A string, the first end of one of the solder tape groups is sent out to misalign the first ends of the two solder tape groups, and the two solder tape groups are pulled out simultaneously from one side. After two misaligned cuts, the production can be completed. When switching to making multiple short solder tape segment groups required for a B string, the first end of the other solder tape group is sent out to misalign the first ends of the two solder tape groups, and then the subsequent cutting steps are executed to complete the production. Pulling out two solder tape groups simultaneously from one side and preparing multiple short solder tape segment groups is compatible with the above two types of BC cell strings, reducing the tape production cost. The cutting device has a simple structure and strong practicability. Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0009] Figure 1 It is a schematic structural diagram of two types of BC cell strings in the present invention; Figure 2 It is a schematic diagram of the process of preparing the first long solder tape segment group and the second long solder tape segment group in the present invention; Figure 3 It is a schematic diagram of the arrangement method of the first long solder tape segment group and the second long solder tape segment group in the present invention; Figure 4 It is a schematic diagram of the process of preparing the third long solder tape segment group and the fourth long solder tape segment group in the present invention; Figure 5 It is a schematic diagram of the arrangement method of the third long solder tape segment group and the fourth long solder tape segment group in the present invention; Figure 6 It is a schematic diagram of the arrangement method after separating multiple first short solder tape segment groups and multiple second short solder tape segment groups in the present invention; Figure 7 Schematic diagram of the arrangement mode after separating multiple third short solder tape segments and multiple fourth short solder tape segments in the present invention; Figure 8 Schematic diagram of the structure of the cutting device in the present invention; Figure 9 Top view of the first embodiment before the tape processing mechanism cuts the first long solder tape segment and the second long solder tape segment in the present invention; Figure 10 Top view of the first embodiment before the tape processing mechanism cuts the third long solder tape segment and the fourth long solder tape segment in the present invention; Figure 11 Top view of the second embodiment before the tape processing mechanism cuts the first long solder tape segment and the second long solder tape segment in the present invention; Figure 12 Top view of the second embodiment before the tape processing mechanism cuts the third long solder tape segment and the fourth long solder tape segment in the present invention; Figure 13 Bottom view of the first embodiment in which the tape conveying mechanism clamps the first short solder tape segment and the second short solder tape in the present invention; Figure 14 Bottom view of the first embodiment in which the tape conveying mechanism clamps the third short solder tape segment and the fourth short solder tape in the present invention; Figure 15 Bottom view of the second embodiment in which the tape conveying mechanism clamps the first short solder tape segment and the second short solder tape in the present invention; Figure 16 Bottom view of the second embodiment in which the tape conveying mechanism clamps the third short solder tape segment and the fourth short solder tape in the present invention.

[0010] Wherein: 100, the first solder tape group; 110, the first long solder tape segment group; 111, the first short solder tape segment group; 120, the third long solder tape segment group; 121, the third short solder tape segment group; 200, the second solder tape group; 210, the second long solder tape segment group; 211, the second short solder tape segment group; 220, the fourth long solder tape segment group; 221, the fourth short solder tape segment group; 300, the first clamping hand; 400, the second clamping hand; 500, the cutting knife; 600, the tape pulling hand; 700, the tape processing mechanism; 710, the moving table; 720, the first mounting seat; 721, the first clamp; 722, the first cutting point; 730, the second mounting seat; 731, the second clamp; 732, the second cutting point; 740, the head mounting seat; 741, the third clamp; 750, the tail mounting seat; 751, the fourth clamp; 800, the tape conveying mechanism; 810, the moving beam; 820, the first clamping seat; 821, the fifth clamp; 830, the second clamping seat; 831, the sixth clamp; 840, the head clamping seat; 841, the seventh clamp; 850, the tail clamping seat; 851, the eighth clamp; A, the reference position; B1, the first front clamping position; B2, the second front clamping position; C, the rear clamping position; D, the front cutting position; E1, the first rear cutting position; E2, the second rear cutting position. Detailed implementation mode

[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0012] As Figure 1 shown, the structures of two BC cell strings are schematically shown, one of which is the A string and the other is the B string, and the short solder tape segments are connected to the back of the BC cells.

[0013] In the present invention, each solder tape is provided by a solder tape roll, multiple solder tape rolls provide multiple solder tapes at the same time, the first ends of the multiple solder tapes are parallel to each other, and the first end of the solder tape is the free end as the end to be pulled. In the present invention, the solder tapes are divided into the first solder tape group 100 and the second solder tape group 200, and the first solder tape group 100 and the second solder tape group 200 are arranged alternately. Among them, the first solder tape group 100 is the solder tape in the odd position, the second solder tape group 200 is the solder tape in the even position, or the first solder tape group 100 is the solder tape in the even position, the second solder tape group 200 is the solder tape in the odd position, and the number of solder tapes in both the first solder tape group 100 and the second solder tape group 200 is N, and N is a positive integer.

[0014] The solder strip cutting and switching method provided by the present invention can switch multiple short solder strip segment groups required for preparing two types of BC cell strings, namely A string and B string, and includes the following steps: S1, as shown in (a) of Figure 2 and (b) of Figure 2 send out the first end of the first solder strip group 100 to make the first end of the first solder strip group 100 extend beyond the first end of the second solder strip group 200; S2, as shown in (c) of Figure 2 and (d) of Figure 3 pull out the first solder strip group 100 and the second solder strip group 200 and cut them out of alignment to produce the first long solder strip segment group 110 and the second long solder strip segment group 210; S3, cut the first long solder strip segment group 110 and the second long solder strip segment group 210 out of alignment; S4, as shown in (a) of Figure 4 and (b) of Figure 4 send out the first end of the second solder strip group 200 to make the first end of the second solder strip group 200 extend beyond the first end of the first solder strip group 100; S5, as shown in (c) of Figure 4 and (d) of Figure 5 pull out the first solder strip group 100 and the second solder strip group 200 and cut them out of alignment to produce the third long solder strip segment group 120 and the fourth long solder strip segment group 220; S6, cut the third long solder strip segment group 120 and the fourth long solder strip segment group 220 out of alignment; Among them, the order of step S3 and step S4 can be exchanged or carried out simultaneously. In step S3 or step S6, cut each long solder strip segment group at a preset position to produce multiple short solder strip segment groups required for the BC cell string, and each long solder strip segment is cut into several short solder strip segments. In the present invention, two solder strip groups are pulled out from one side simultaneously to prepare multiple short solder strip segment groups, and the direction indicated by the first end of the solder strip is the first horizontal direction, that is, the direction in which the solder strip is pulled out. After executing step S1-step S3, multiple short solder strip segment groups required for the first type of BC cell string are produced. After executing step S4-step S6, multiple short solder strip segment groups required for the second type of BC cell string are produced. If it is necessary to switch the preparation of multiple short solder strip segment groups required for the two types of BC cell strings, then switch to execute step S1-S3 and step S4-S6.

[0015] Before pulling out the first solder tape group 100 and the second solder tape group 200 in step S1, the first end of the first solder tape group 100 is at the first front clamping position B1, and the first end of the second solder tape group 200 is at the rear clamping position C; in step S4, before pulling out the first solder tape group 100 and the second solder tape group 200, the first end of the second solder tape group 200 is at the second front clamping position B2, and the first end of the first solder tape group 100 is at the rear clamping position C. The positions of the first front clamping position B1 and the second front clamping position B2 are the same or different. 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 remaining solder tape at the end of the BC cell string. The remaining solder tape is the part of the solder tape welded to the bus bar.

[0016] In step S2, the first solder tape group 100 is cut at the front cutting position D, and the second solder tape group 200 is cut at the first rear cutting position E1; in step S5, the second solder tape group 200 is cut at the front cutting position D, and the first solder tape group 100 is cut at the second rear cutting position E2. The positions of the first rear cutting position E1 and the second rear cutting position E2 are the same or different. 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 remaining solder tape at the end of the BC cell string. The remaining solder tape is the part of the solder tape welded to the bus bar.

[0017] Before performing step S1 or step S4, the first end of the first solder tape group 100 and the first end of the second solder tape group 200 are adjusted to the reference position A. By setting the reference position A, it is possible to observe whether the ends of the first solder tape group 100 and the second solder tape group 200 are aligned, and sending out the first solder tape group 100 or the second solder tape group 200 from the same position by a preset length can improve the tape-making accuracy.

[0018] It should be noted that there is no specific relationship whether the reference position A coincides 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.

[0019] Such as Figure 6 and Figure 7As shown, in the present invention, the cutting positions of the first long solder tape segment group 110 and the fourth long solder tape segment group 220 are the same, and the cutting positions of the second long solder tape segment group 210 and the third long solder tape segment group 120 are the same. After performing step S3, a plurality of first short solder tape segment groups 111 and a plurality of second short solder tape segment groups 211 are produced. The ends of the first short solder tape segment groups 111 and the second short solder tape segment groups 211 are offset from each other. In the length direction of the solder tape, the plurality of first short solder tape segment groups 111 and the plurality of second short solder tape segment groups 211 are separated. The plurality of first short solder tape segment groups 111 and the plurality of second short solder tape segment groups 211 are the plurality of short solder tape segment groups required for one type of BC battery string. After performing step S6, a plurality of third short solder tape segment groups 121 and a plurality of fourth short solder tape segment groups 221 are produced. The ends of the third short solder tape segment groups 121 and the fourth short solder tape segment groups 221 are offset from each other. In the length direction of the solder tape, the plurality of third short solder tape segment groups 121 and the plurality of fourth short solder tape segment groups 221 are separated. The plurality of third short solder tape segment groups 121 and the plurality of fourth short solder tape segment groups 221 are the plurality of short solder tape segment groups required for another type of BC battery string. After performing step S3 or step S6, the plurality of short solder tape segment groups produced, after being adjusted in distance, meet the distance requirements between the plurality of short solder tape segment groups in the BC battery string and can be directly laid together with the battery wafers.

[0020] As Figure 8 shown, the present invention also provides a cutting device that uses the above solder tape cutting and switching method. It includes a first clamping hand 300, a second clamping hand 400, a cutter 500, and a tape pulling hand 600 arranged in sequence along the first horizontal direction, and a tape processing mechanism 700 arranged below the moving path of the tape 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 tape 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 tape pulling hand 600 can reciprocate in the up and down direction 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 perform step S3 and step 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 tape pulling hand 600 clamp all the solder tapes at the same time. The cutter 500 is provided with N notches. When cutting one of the solder tape groups, the other solder tape group is located in the notches. The cutter 500 can be provided with two in the front and back, respectively used to cut the two solder tape groups, or one, and by moving, the cutter 500 is aligned with different solder tape groups at different cutting positions.

[0021] The process of the cutting device performing the above solder tape cutting and switching method is as follows: When corresponding to the execution of step S1, the first ends of the two solder tape groups are flush. The first clamping hand 300 and the second clamping hand 400 respectively clamp the first solder tape group 100 and the second solder tape group 200, and the first ends of the two solder tape groups pass through the first clamping hand 300 and the second clamping hand 400. The first clamping hand 300 moves along the first horizontal direction to send out the first end of the first solder tape group 100; When corresponding to the execution of step S2, the pulling hand 600 simultaneously clamps the first ends of the first solder tape group 100 and the second solder tape group 200. The first clamping hand 300 and the second clamping hand 400 release the clamped solder tape groups. The pulling hand 600 moves along the first horizontal direction to pull out the first solder tape group 100 and the second solder tape group 200 simultaneously. The first clamping hand 300 clamps the first solder tape group 100 again, and the second clamping hand 400 clamps the second solder tape group 200 again. The first clamping hand 300, the second clamping hand 400 and the pulling hand 600 clamp the corresponding solder tape groups and move downward to approach the tape processing mechanism 700. After the tape processing mechanism 700 clamps the pulled-out parts of the two solder tape groups, the cutter 500 cuts the first solder tape group 100 and the second solder tape group 200 at two front and back positions respectively to produce the first long solder tape segment group 110 and the second long solder tape segment group 210; When corresponding to the execution of step S3, after the pulling hand 600 releases the first ends of the first long solder tape segment group 110 and the second long solder tape segment group 210, the first clamping hand 300, the second clamping hand 400 and the pulling hand 600 move upward, and the tape processing mechanism 700 misplaces and cuts the first long solder tape segment group 110 and the second long solder tape segment group 210; When corresponding to the execution of step S4, the positions of the first clamping hand 300 and the second clamping hand 400 are adjusted to make the first ends of the two solder tape groups flush. The second clamping hand 400 moves along the first horizontal direction to send out the first end of the second solder tape group 200; When corresponding to the execution of step S5, the pulling hand 600 simultaneously clamps the first ends of the first solder tape group 100 and the second solder tape group 200. The first clamping hand 300 and the second clamping hand 400 release the clamped solder tape groups. The pulling hand 600 moves along the first horizontal direction to pull out the first solder tape group 100 and the second solder tape group 200 simultaneously. The first clamping hand 300 clamps the first solder tape group 100 again, and the second clamping hand 400 clamps the second solder tape group 200 again. The first clamping hand 300, the second clamping hand 400 and the pulling hand 600 clamp the corresponding solder tape groups and move downward to approach the tape processing mechanism 700. After the tape processing mechanism 700 clamps the pulled-out parts of the two solder tape groups, the cutter 500 cuts the second solder tape group 200 and the first solder tape group 100 at two front and back positions respectively to produce the fourth long solder tape segment group 220 and the third long solder tape segment group 120; When corresponding to the execution of step S6, after the tape pulling hand 600 releases the first ends of the third longest solder tape segment group 120 and the fourth longest solder tape segment group 220, the first clamping hand 300, the second clamping hand 400, and the tape pulling hand 600 move upward, and the tape processing mechanism 700 cuts the third longest solder tape segment group 120 and the fourth longest solder tape segment group 220 in a staggered manner.

[0022] Such as Figure 9 And Figure 10As shown, in the first embodiment of the present invention, the tape processing mechanism 700 includes a mobile station 710, a head mounting seat 740, an intermediate mounting seat, and a tail mounting seat 750 provided on the mobile station 710; along the first horizontal direction, the head mounting seat 740, the intermediate mounting seat, and the tail 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 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 mounting seat 740, and two fourth clamp groups are provided on the tail mounting seat 750. Each first clamp group includes N + 1 first clamps 721 arranged along the second horizontal direction, each second clamp group includes N second clamps 731 arranged along the second horizontal direction, each third clamp group includes N + 1 third clamps 741 arranged along the second 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 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 point 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 staggeredly arranged; the mobile station 710 can reciprocate in the up-and-down direction and the second horizontal direction, and the head mounting seat 740, the first mounting seat 720, the second mounting seat 730, and the tail mounting seat 750 can reciprocate 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 solder tape 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 solder tape 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 solder tape segment group 210 and the third long solder tape segment group 120; the N first cutting points 722 on each first mounting seat 720 are used to cut the second long solder tape segment group 210 and the third long solder tape segment group 120, the first N second cutting points 732 on each second mounting seat 730 are used to cut the first long solder tape segment group 110, and the last N second cutting points 732 on each second mounting seat 730 are used to cut the fourth long solder tape segment group 220.After cutting the corresponding long solder tape segments into short solder tape segments at the first cutting point 722 and the second cutting point 732, the head mounting seat 740, the intermediate mounting seat, and the tail mounting seat 750 move away from each other to adjust the distance between the multiple short solder tape segments.

[0023] Such as Figure 11 And Figure 12As shown, in the second embodiment of the present invention, the tape processing mechanism 700 includes a moving platform 710, a head mounting seat 740, an intermediate mounting seat, and a tail mounting seat 750 disposed on the moving platform 710; along the first horizontal direction, the head mounting seat 740, the intermediate mounting seat, and the tail 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 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 mounting seat 740, and two fourth clamp groups are provided on the tail mounting seat 750. Each first clamp group includes N first clamps 721 arranged along the second horizontal direction, each second clamp group includes N + 1 second clamps 731 arranged along the second horizontal direction, each third clamp group includes N third clamps 741 arranged along the second horizontal direction, and 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 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. 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 point 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 staggered; the moving platform 710 can reciprocate in the vertical direction and the second horizontal direction, and the head mounting seat 740, the first mounting seat 720, the second mounting seat 730, and the tail mounting seat 750 can reciprocate 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 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 solder tape segment group 110 and the fourth long solder tape segment group 220; the latter N second clamps 731 in each second clamp group and the latter N fourth clamps 751 in each fourth clamp group are used to clamp the second long solder tape 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 solder tape segment group 120; the latter N first cutting points 722 on each first mounting seat 720 are used to cut the second long solder tape segment group 210, the first N first cutting points 722 on each first mounting seat 720 are used to cut the third long solder tape segment group 120, and the N second cutting points 732 on each second mounting seat 730 are used to cut the first long solder tape segment group 110 and the fourth long solder tape segment group 220.After cutting the corresponding long solder strip segments into short solder strip segments at the first cutting point 722 and the second cutting point 732, the head mounting seat 740, the middle mounting seat, and the tail mounting seat 750 move away from each other to adjust the distance between the multiple short solder strip segments.

[0024] As Figure 13 and Figure 14 shown, in the first embodiment of the present invention, the cutting device further includes a tape conveying mechanism 800. The tape conveying mechanism 800 includes a moving beam 810, and a head clamping seat 840, a middle clamping seat, and a tail clamping seat 850 provided at the bottom of the moving beam 810. Along the first horizontal direction, the head clamping seat 840, the middle clamping seat, and the tail clamping seat 850 are arranged in sequence. The middle clamping seat includes M first clamping seats 820 and M second clamping seats 830. 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 clamp groups are provided at the bottom of the first clamping seat 820, and two sixth clamp groups are provided at the bottom of the second clamping seat 830. Each fifth clamp group includes N fifth clamps 821 arranged along the second horizontal direction. 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 clamping seat 840, and 2N + 1 eighth clamps 851 are provided at the bottom of the tail clamping seat 850. The N fifth clamps 821 at the bottom of each first clamping seat 820 are aligned with N seventh clamps 841 and 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 N + 1 seventh clamps 841 and N + 1 eighth clamps 851 in the first horizontal direction. The fifth clamps 821 and the sixth clamps 831 are arranged staggeredly. The moving beam 810 can reciprocate along the up and down direction and the second horizontal direction. In this embodiment, the N fifth clamps 821 in each fifth clamp group, the N seventh clamps 841 at even positions, and the N eighth clamps 851 at even positions are used to clamp the second short solder strip segment group 211 and the third short solder strip segment group 121. The first N sixth clamps 831 in each sixth clamp group, the first N seventh clamps 841 at odd positions, and the first N eighth clamps 851 at odd positions are used to clamp the first short solder strip segment group 111. The last N sixth clamps 831 in each sixth clamp group, the last N seventh clamps 841 at odd positions, and the last N eighth clamps 851 at odd positions are used to clamp the fourth short solder strip segment group 221. In other embodiments, the N + 1 seventh clamps 841 can be arranged in two columns, and the N + 1 eighth clamps 851 can also be arranged in two columns.

[0025] As Figure 15 and Figure 16As shown in the figure, in the second embodiment of the present invention, the cutting device further includes a belt conveying mechanism 800. The belt conveying mechanism 800 includes a moving beam 810, a head clamping seat 840, an intermediate clamping seat, and a tail clamping seat 850 provided at the bottom of the moving beam 810. Along the first horizontal direction, the head clamping seat 840, the intermediate clamping seat, and the tail clamping seat 850 are arranged in sequence. 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 alternately arranged along the first horizontal direction. Along the first horizontal direction, two fifth clamp groups are provided at the bottom of the first clamping seat 820, and two sixth clamp groups are provided at the bottom of the second clamping seat 830. Each fifth clamp group includes N + 1 fifth clamps 821 arranged along the second horizontal direction, and each 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 clamping seat 840, and 2N + 1 eighth clamps 851 are provided at the bottom of the tail 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. The fifth clamps 821 and the sixth clamps 831 are staggered. The moving beam 810 can reciprocally move in the up-and-down direction and the second horizontal direction. In this embodiment, the first N fifth clamps 821 in each fifth clamp group, the first N seventh clamps 841 at odd positions, and the first N eighth clamps 851 at odd positions are used to clamp the third short solder tape segment group 121. The last N fifth clamps 821 in each fifth clamp group, the last N seventh clamps 841 at odd positions, and the last N eighth clamps 851 at odd positions are used to clamp the second short solder tape segment group 211. The N sixth clamps 831 in each sixth clamp group, the N seventh clamps 841 at even positions, and the N eighth clamps 851 at even positions are used to clamp the first short solder tape segment group 111 and the fourth short solder tape segment group 221. In other embodiments, the N + 1 seventh clamps 841 can be arranged in two columns, and the N + 1 eighth clamps 851 can also be arranged in two columns.

[0026] In this specification, specific examples are used to illustrate the principles and implementation manners of the present invention. The descriptions of the above embodiments are only for helping to understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for welding strip cutting and switching, characterized in that, It includes the following steps: S1. Send out the first end of the first solder tape group (100) so that the first end of the first solder tape group (100) extends beyond the first end of the second solder tape group (200); S2. Pull out the first solder tape group (100) and the second solder tape group (200) and cut them staggeredly to produce a first long solder tape segment group (110) and a second long solder tape segment group (210); S3. Cut the first long solder tape segment group (110) and the second long solder tape segment group (210) staggeredly; S4. Send out the first end of the second solder tape group (200) so that the first end of the second solder tape group (200) extends beyond the first end of the first solder tape group (100); S5. Pull out the first solder tape group (100) and the second solder tape group (200) and cut them staggeredly to produce a third long solder tape segment group (120) and a fourth long solder tape segment group (220); S6. Cut the third long solder tape segment group (120) and the fourth long solder tape segment group (220) staggeredly; Wherein, the order of step S3 and step S4 can be exchanged or carried out simultaneously. The first solder tape group (100) and the second solder tape group (200) are arranged staggeredly. The number of solder tapes in both the first solder tape group (100) and the second solder tape group (200) is N, and N is a positive integer.

2. The solder strip cutting and switching method according to claim 1, characterized in that: In step S1, before pulling out the first solder tape group (100) and the second solder tape group (200), the first end of the first solder tape group (100) is at the first pre-clamping position (B1), and the first end of the second solder tape group (200) is at the post-clamping position (C); in step S4, before pulling out the first solder tape group (100) and the second solder tape group (200), the first end of the second solder tape group (200) is at the second pre-clamping position (B2), and the first end of the first solder tape group (100) is at the post-clamping position (C).

3. The solder strip cutting and switching method according to claim 1, characterized in that: In step S2, cut the first solder tape group (100) at the pre-cutting position (D) and cut the second solder tape group (200) at the first post-cutting position (E1); in step S5, cut the second solder tape group (200) at the pre-cutting position (D) and cut the first solder tape group (100) at the second post-cutting position (E2).

4. The method for switching the cutting of the solder tape according to claim 3, characterized in that: Before performing step S1 or step S4, adjust the first ends of the first solder tape group (100) and the second solder tape group (200) to the reference position (A).

5. The solder strip cutting and switching method according to claim 1, characterized in that: The cutting positions of the first long solder strip segment group (110) and the fourth long solder strip segment group (220) are the same, and the cutting positions of the second long solder strip segment group (210) and the third long solder strip segment group (120) are the same. After performing step S3, a plurality of first short solder strip segment groups (111) and a plurality of second short solder strip segment groups (211) are produced. The ends of the first short solder strip segment groups (111) and the second short solder strip segment groups (211) are offset from each other. In the length direction of the solder strip, the plurality of first short solder strip segment groups (111) and the plurality of second short solder strip segment groups (211) are separated. After performing step S6, a plurality of third short solder strip segment groups (121) and a plurality of fourth short solder strip segment groups (221) are produced. The ends of the third short solder strip segment groups (121) and the fourth short solder strip segment groups (221) are offset from each other. In the length direction of the solder strip, the plurality of third short solder strip segment groups (121) and the plurality of fourth short solder strip segment groups (221) are separated.

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

7. The cutting device according to claim 6, characterized in that: The tape processing mechanism (700) includes a moving platform (710), a head mounting base (740) disposed on the moving platform (710), an intermediate mounting base, and a tail mounting base (750); along the first horizontal direction, the head mounting base (740), the intermediate mounting base, and the tail mounting base (750) are arranged in sequence. The intermediate mounting base includes M first mounting bases (720) and M second mounting bases (730), and the first mounting bases (720) and the second mounting bases (730) are arranged alternately along the first horizontal direction; along the first horizontal direction, two first clamp groups are provided on the first mounting base (720), two second clamp groups are provided on the second mounting base (730), two third clamp groups are provided on the head mounting base (740), and two fourth clamp groups are provided on the tail mounting base (750). Each first clamp group includes N + 1 first clamps (721) arranged along the second horizontal direction, each second clamp group includes N second clamps (731) arranged along the second horizontal direction, each third clamp group includes N + 1 third clamps (741) arranged along the second 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 base (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 base (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 clamps (731), and the fourth clamps (751) are aligned in the first horizontal direction, the second cutting points (732), the first clamps (721), and the third clamps (741) are aligned in the first horizontal direction, and the first cutting points (722) and the second cutting points (732) are arranged in a staggered manner; the moving platform (710) can reciprocate in the up-and-down direction and the second horizontal direction, and the head mounting base (740), the first mounting base (720), the second mounting base (730), and the tail mounting base (750) can reciprocate in 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 tape processing mechanism (700) includes a mobile station (710), a head mounting base (740), an intermediate mounting base, and a tail mounting base (750) provided on the mobile station (710); along the first horizontal direction, the head mounting base (740), the intermediate mounting base, and the tail mounting base (750) are arranged in sequence. The intermediate mounting base includes M first mounting bases (720) and M second mounting bases (730), and the first mounting bases (720) and the second mounting bases (730) are alternately arranged along the first horizontal direction; along the first horizontal direction, two first clamp groups are provided on the first mounting base (720), two second clamp groups are provided on the second mounting base (730), two third clamp groups are provided on the head mounting base (740), and two fourth clamp groups are provided on the tail mounting base (750). Each first clamp group includes N first clamps (721) arranged along the second horizontal direction, each second clamp group includes N + 1 second clamps (731) arranged along the second horizontal direction, each third clamp group includes N third clamps (741) arranged along the second horizontal direction, and each fourth clamp group includes N + 1 fourth clamps (751) arranged along the second horizontal direction; along the second horizontal direction, the first mounting base (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. The second mounting base (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 clamps (731), and the fourth clamps (751) are aligned in the first horizontal direction, the second cutting points (732), the first clamps (721), and the third clamps (741) are aligned in the first horizontal direction, and the first cutting points (722) and the second cutting points (732) are staggeredly arranged; the mobile station (710) can reciprocally move in the up-and-down direction and the second horizontal direction, and the head mounting base (740), the first mounting base (720), the second mounting base (730), and the tail mounting base (750) can reciprocally move in the first horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction, and M is a positive integer.

9. The cutting device according to claim 7, characterized in that: It further includes a belt conveying mechanism (800), and the belt conveying mechanism (800) includes a moving beam (810), a head end clamping seat (840) arranged at the bottom of the moving beam (810), an intermediate clamping seat, and a tail end clamping seat (850); 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, 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 clamp groups are arranged at the bottom of the first clamping seat (820), two sixth clamp groups are arranged at the bottom of the second clamping seat (830), each fifth clamp group includes N fifth clamps (821) arranged along the second horizontal direction, each sixth clamp group includes N + 1 sixth clamps (831) arranged along the second horizontal direction, 2N + 1 seventh clamps (841) are arranged at the bottom of the head end clamping seat (840), and 2N + 1 eighth clamps (851) are arranged 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 N of the seventh clamps (841) and N of the 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 N + 1 of the seventh clamps (841) and N + 1 of the eighth clamps (851) in the first horizontal direction, and the fifth clamps (821) and the sixth clamps (831) are arranged staggeredly; the moving beam (810) can reciprocate in the up and down direction and the second horizontal direction.

10. The cutting device according to claim 8, wherein: It further includes a belt conveying mechanism (800), and the belt conveying mechanism (800) includes a moving beam (810), a head clamping seat (840) arranged at the bottom of the moving beam (810), an intermediate clamping seat, and a tail clamping seat (850); along the first horizontal direction, the head clamping seat (840), the intermediate clamping seat, and the tail clamping seat (850) are arranged in sequence, 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 clamp groups are arranged at the bottom of the first clamping seat (820), two sixth clamp groups are arranged at the bottom of the second clamping seat (830), each fifth clamp group includes N + 1 fifth clamps (821) arranged along the second horizontal direction, each sixth clamp group includes N sixth clamps (831) arranged along the second horizontal direction, 2N + 1 seventh clamps (841) are arranged at the bottom of the head clamping seat (840), and 2N + 1 eighth clamps (851) are arranged at the bottom of the tail 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 staggeredly; the moving beam (810) can reciprocally move in the up-and-down direction and the second horizontal direction.

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