String welding machine

Abstract

The present invention provides a string welding machine for welding solar panels, which relates to the technical field of string welding machines and is used to realize the superposition and adhesive connection of solar cells. The device includes a battery sheet feeding device, a material taking and moving mechanism, a dispensing moving stage, a jet dispensing mechanism, an intermediate moving mechanism, a welding mechanism, and a translation and flipping mechanism. The battery sheets are placed on the battery sheet feeding device, so the material taking and moving mechanism can place the battery sheets on the battery sheet feeding device onto the dispensing moving stage; the jet dispensing mechanism can spray conductive silver glue onto the battery sheets on the dispensing moving stage, and the welding structure can perform welding treatment on the battery sheets that are moved from the dispensing moving stage to the welding mechanism through the intermediate moving mechanism. The translation and flipping mechanism is used to move the battery string formed on the welding mechanism onto the discharging tray; a bus bar pulling and cutting mechanism or a bus bar transferring structure is used to place the bus bar on the welding belt structure of the welding structure.

Description

Technical Field

[0001] The present invention relates to the technical field of string welding machines, and more particularly to a string welding machine for welding solar panels. Background Art

[0002] The overlapping tile technology is different from the traditional component packaging method. It refers to cutting traditional solar cells into small pieces, directly connecting two pieces of cells through conductive adhesive, stacking and pasting them together, and then connecting the cell strings. Generally, traditional components will retain a spacing of about 2-3 mm between solar cells, while the overlapping tile process realizes no spacing between solar cells by overlapping small cell pieces, improving the component packaging efficiency. More than 13% more solar cells can be placed within the same component area compared to conventional components. Therefore, overlapping tile components have advantages such as high output power, low internal loss, and small hot spot effect. The present invention aims to provide a string welding machine for realizing the stacking and pasting connection of solar cells. Summary of the Invention

[0003] The purpose of the present invention is to provide a string welding machine for realizing the stacking and pasting connection of solar cells. The preferred technical solutions among the many technical solutions provided by the present invention and the many technical effects they can produce are described in detail below.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A string welding machine provided by the present invention includes a cell feeding device, a material taking and moving mechanism, a dispensing moving stage, a jet dispensing mechanism, an intermediate moving mechanism, a welding mechanism, and a translation and flipping mechanism. Among them, the material taking and moving mechanism is arranged on one side of the cell feeding device, and cells are placed on the cell feeding device. The material taking and moving mechanism can place the cells on the cell feeding device on the dispensing moving stage; the jet dispensing mechanism is arranged on one side of the dispensing moving stage, and the jet dispensing mechanism can spray conductive silver paste onto the cells on the dispensing moving stage. The welding structure can perform welding treatment on the cells that are moved from the dispensing moving stage to the welding mechanism through the intermediate moving mechanism. The translation and flipping mechanism is used to move the cell string formed on the welding mechanism to the discharge tray; the string welding machine further includes a bus bar pulling and cutting mechanism or a bus bar moving and placing structure, and the bus bar pulling and cutting mechanism or the bus bar moving and placing structure is used to place the bus bar on the welding belt structure of the welding structure.

[0006] Further, the wafer feeding device of the battery cells includes a first frame body, a first support structure, a first driving device, and a blowing device. The first driving device and the blowing device are connected to the first frame body. The first support structure is connected to the first driving device, and the first driving device can drive the first support structure to move up and down. By driving the first support structure to move downward by the first driving device and blowing air to the battery cells stacked on the first support structure by the blowing device, it is used to enable the material taking and moving mechanism to adsorb only the uppermost one of the battery cells on the battery cell support structure.

[0007] Further, the material taking and moving mechanism includes a second adsorption structure, a second moving structure, and a correction structure. The second adsorption structure includes two second adsorption manipulators, and both of the two second adsorption manipulators are connected to the second moving structure. The correction structure is arranged below the second adsorption structure, and the correction structure is used to adjust the position of the battery cell placed on the correction structure. The second moving structure can drive the second adsorption structure to move, and when one of the second adsorption manipulators moves directly above the correction structure, the other second adsorption manipulator is located on the dispensing moving carrier.

[0008] Further, the correction structure includes a correction platform, an X-direction positioning mechanism, and a Y-direction positioning mechanism. The X-direction positioning mechanism and the Y-direction positioning mechanism are connected to the correction platform. One or more than two correction support surfaces are formed on the correction platform. The X-direction positioning mechanism and the Y-direction positioning mechanism are used to adjust the position of the battery cell on the correction platform. The Y-direction positioning mechanism includes a Y-direction cylinder, a Y-direction positioning strip, and a Y-direction adjusting rod. The Y-direction positioning strip is fixed on the correction platform. The Y-direction cylinder is arranged below the correction platform and is connected to the Y-direction adjusting rod through a Y-direction connecting structure. Each correction support surface corresponds to the Y-direction positioning strip and the Y-direction adjusting rod. When the Y-direction cylinder acts, it can drive the Y-direction adjusting rod to push the battery cell on the correction support surface towards the Y-direction positioning strip, so that the long sides of the battery cell are respectively attached to the corresponding Y-direction positioning strips. The X-direction positioning mechanism includes a gripper finger cylinder, an X-direction pushing plate, and a gripper connecting structure. The two oppositely arranged X-direction pushing plates are connected to the gripper finger cylinder through the gripper connecting structure. When the gripper finger cylinder acts, it can drive the two X-direction pushing plates to move towards each other, so that the two short sides of the battery cell on the correction platform are clamped between the two X-direction pushing plates.

[0009] Further, the jet dispensing mechanism further includes a third support frame, a glue jet nozzle, a horizontal adjustment mechanism, and a vertical adjustment mechanism. Among them, the glue jet nozzle is arranged above the dispensing moving stage, the horizontal adjustment mechanism is connected to the glue jet nozzle, the horizontal adjustment mechanism is connected to the vertical adjustment mechanism, the vertical adjustment mechanism is connected to the third support frame, and the horizontal adjustment mechanism and the vertical adjustment mechanism are respectively used to adjust the position of the glue jet nozzle in the horizontal direction and the vertical direction. Both the horizontal adjustment mechanism and the vertical adjustment mechanism are manual fine-tuning sliding tables.

[0010] Further, the welding mechanism further includes a fourth support frame and a welding lamp structure. The welding belt structure and the welding lamp structure are connected to the fourth support frame; a battery cell placement area, a preheating area, a welding area, and a slow cooling area are formed on the welding belt structure, and the welding lamp structure is arranged above the welding area.

[0011] Further, the welding lamp structure includes a welding lamp support frame, a heating lamp structure, a welding lamp driving cylinder, a pressure pin structure, and a pressure pin driving cylinder. The welding lamp driving cylinder and the pressure pin driving cylinder are connected to the welding lamp support frame. The pressure pin structure is located on the lower side of the heating lamp structure. The heating lamp structure is connected to the welding lamp driving cylinder and the welding lamp driving cylinder can drive the heating lamp structure to move up and down. The pressure pin structure is connected to the pressure pin driving cylinder and the pressure pin driving cylinder can drive the pressure pin structure to move up and down.

[0012] Further, the bus bar pulling and cutting mechanism includes a bus bar support frame, a soldering flux accommodating structure, a punching structure, a shearing structure, a pulling structure, and a bus bar moving structure. Among them, the soldering flux accommodating structure, the punching structure, the shearing structure, and the pulling structure are connected to the bus bar support frame. A bus bar coil is connected to the bus bar support frame. The bus bar on the bus bar coil can sequentially pass through the soldering flux accommodating structure and the punching structure and lead to the shearing structure. When the shearing structure is in the reset state, the pulling structure can hold the end of the bus bar and drive the bus bar to move away from the shearing structure. The shearing structure is used to cut the bus bar passing through it. The bus bar moving structure can move the cut bus bar towards the welding belt structure.

[0013] Further, the bus bar transfer and placement structure includes a bus bar support, a bus bar adsorption device, a bus bar driving device, and a bus bar placement table. The bus bar adsorption device is connected to the bus bar support through the bus bar driving device, and the bus bar driving device can drive the bus bar adsorption device to move. The bus bar placement table is bridged on the welding belt structure. The bus bar adsorption device is used to adsorb the bus bar placed on the bus bar placement table, and a glue box is arranged on the bus bar placement table.

[0014] Further, the translation and flipping mechanism includes a translation conveyor belt structure, a translation structure, and a flipping structure. Among them, the translation conveyor belt structure is adjacent to the welding mechanism. The flipping structure is arranged on one side of the translation structure, and the translation structure is used to place the battery string on the welding belt structure on the flipping structure. The translation structure includes a translation suction nozzle and a translation driving structure. The translation suction nozzle is connected to the translation driving structure, and the translation driving structure can drive the translation suction nozzle to move in the horizontal and vertical directions. The translation suction nozzle is arranged above the translation conveyor belt structure. The flipping structure includes a flipping suction nozzle and a flipping driving structure. The flipping suction nozzle is connected to the flipping driving structure, and the flipping driving structure can drive the flipping suction nozzle and the battery string arranged on the flipping suction nozzle to flip.

[0015] A string welding machine provided by the present invention includes a battery chip feeding device, a material taking and moving mechanism, a dispensing moving stage, a jet dispensing mechanism, an intermediate moving mechanism, a welding mechanism, and a translation and flipping mechanism. Among them, the material taking and moving mechanism is arranged on one side of the battery chip feeding device. The battery chips are placed on the battery chip feeding device, and the material taking and moving mechanism can place the battery chips on the battery chip feeding device on the dispensing moving stage. The jet dispensing mechanism is arranged on one side of the dispensing moving stage, and the jet dispensing mechanism can spray conductive silver glue on the battery chips on the dispensing moving stage. The welding structure can perform welding treatment on the battery chips that are moved from the dispensing moving stage to the welding mechanism through the intermediate moving mechanism. The translation and flipping mechanism is used to move the battery string formed on the welding mechanism to the discharging tray. The string welding machine further includes a bus bar pulling and cutting mechanism or a bus bar transfer and placement structure, and the bus bar pulling and cutting mechanism or the bus bar transfer and placement structure is used to place the bus bar on the welding belt structure of the welding structure. Description of the Drawings

[0016] 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 the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic structural diagram of the wafer supply device provided by the embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the cooperation between the guide rod and the first support structure provided by the embodiment of the present invention;

[0019] Figure 3 Schematic structure of the material taking and moving mechanism (the corrected structure is not shown) provided by the embodiment of the present invention;

[0020] Figure 4 Schematic structural diagram of the correction structure provided by the embodiment of the present invention;

[0021] Figure 5 Schematic structural diagram of the correction structure provided by the embodiment of the present invention;

[0022] Figure 6 Schematic structural diagram of the correction structure provided by the embodiment of the present invention;

[0023] Figure 7 Schematic structural diagram of the jet dispensing mechanism provided by the embodiment of the present invention;

[0024] Figure 8 Schematic structural diagram of the welding mechanism provided by the embodiment of the present invention;

[0025] Figure 9 Schematic structural diagram of the welding lamp structure provided by the embodiment of the present invention;

[0026] Figure 10 Schematic structural diagram of the connection between the needle pressing driving cylinder and the needle pressing structure provided by the embodiment of the present invention;

[0027] Figure 11 is Figure 10 Local enlarged view of part A in;

[0028] Figure 12 Schematic structural diagram of the bus bar pulling and cutting mechanism provided by the embodiment of the present invention;

[0029] Figure 13 is Figure 12 Local enlarged view of part B in;

[0030] Figure 14 is Figure 12 Local enlarged view of part C in;

[0031] Figure 15 Schematic structural diagram of the shearing structure provided by the embodiment of the present invention;

[0032] Figure 16 Schematic structural diagram of the pulling structure provided by the embodiment of the present invention;

[0033] Figure 17 is Figure 16 The partial enlarged view at position D in

[0034] Figure 18 The structural schematic diagram of the translation structure provided by the embodiment of the present invention;

[0035] Figure 19 The structural schematic diagram of the flipping structure provided by the embodiment of the present invention;

[0036] Figure 20 The structural schematic diagram of the flipping structure provided by the embodiment of the present invention;

[0037] Figure 21 The structural schematic diagram of the string welding machine provided by the embodiment of the present invention (with a bus bar pulling and cutting mechanism);

[0038] Figure 22 is Figure 21 The partial enlarged view at position E in

[0039] Figure 23 The structural schematic diagram of the string welding machine provided by the embodiment of the present invention (with a bus bar pulling and cutting mechanism);

[0040] Figure 24 is Figure 23 The partial enlarged view at position F in

[0041] Figure 25 The structural schematic diagram of the string welding machine provided by the embodiment of the present invention (without a bus bar pulling and cutting mechanism);

[0042] Figure 26 is Figure 25 The partial enlarged view at position G in

[0043] In the figure, 1 - battery sheet feeding device; 110 - first frame body; 120 - first support structure; 130 - air blowing nozzle; 140 - first driving motor; 150 - guide rod; 160 - mating notch;

[0044] 2 - material taking and moving mechanism; 210 - second adsorption manipulator; 220 - second moving structure; 230 - correction structure; 231 - correction platform; 232 - correction support surface; 233 - Y-direction cylinder; 234 - Y-direction positioning bar; 235 - Y-direction adjusting rod; 236 - air gripper finger cylinder; 237 - X-direction pushing plate;

[0045] 3 - jet dispensing mechanism; 310 - third support frame body; 320 - dispensing nozzle; 330 - horizontal adjusting mechanism; 340 - vertical adjusting mechanism;

[0046] 4 - dispensing moving carrier table;

[0047] 5 - Welding belt structure; 510 - Placement area; 520 - Preheating area; 530 - Welding area; 540 - Slow cooling area; 550 - Welding belt; 560 - Support roller drive motor;

[0048] 6 - Welding lamp structure; 610 - Welding lamp support frame; 620 - Heating lamp structure; 630 - Welding lamp drive cylinder; 640 - Pressure pin structure; 641 - Small pressure pin; 642 - Small pressure pin support plate structure; 650 - Pressure pin drive cylinder;

[0049] 7 - Bus bar transfer structure;

[0050] 8 - Bus bar pulling and cutting mechanism; 810 - Bus bar support frame; 820 - Flux accommodating structure; 821 - Flux box; 822 - Through hole; 823 - Liquid injection hole; 830 - Punching structure; 831 - Punching drive cylinder; 832 - First moving template; 833 - Second moving template; 834 - Fixed template; 835 - Vertical guide post; 840 - Shearing structure; 841 - Upper shearing knife; 842 - Lower shearing knife; 843 - Upper shearing drive cylinder; 844 - Lower shearing drive cylinder; 850 - Pulling structure; 851 - Gripper drive structure; 852 - Loading platform; 853 - Gripper cylinder; 854 - Intermediate connecting piece; 855 - Triangular plate; 856 - Bottom support structure; 857 - Gripping plate; 860 - Bus bar moving structure; 870 - Bus bar coil; 880 - Support roller;

[0051] 9 - Translation and flipping mechanism; 910 - Translation conveyor belt structure; 920 - Translation vertical cylinder; 930 - Translation horizontal beam; 940 - Translation drive motor; 950 - Flipping beam; 960 - Flipping drive motor; 970 - Flipping connecting rod; 980 - Translation suction nozzle; 990 - Flipping suction nozzle;

[0052] 10 - Intermediate moving mechanism. Detailed implementation mode

[0053] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope protected by the present invention.

[0054] Embodiment 1:

[0055] See Figure 21 and Figure 23, the present invention provides a string welding machine, including a battery sheet feeding device 1, a material taking and moving mechanism 2, a dispensing moving stage 4, a jet dispensing mechanism 3, an intermediate moving mechanism 10, a welding mechanism, and a translation and flipping mechanism 9. Among them, the material taking and moving mechanism 2 is arranged on one side of the battery sheet feeding device 1, and the battery sheets are placed on the battery sheet feeding device 1. See Figure 22 , which shows two battery sheet feeding devices 1. The material taking and moving mechanism 2 can place the battery sheets on the battery sheet feeding device 1 onto the dispensing moving stage 4. See Figure 21 , which shows the dispensing moving stage 4. The dispensing moving stage 4 can be a conveyor belt drive structure; the jet dispensing mechanism 3 is arranged on one side of the dispensing moving stage 4, and the jet dispensing mechanism 3 can spray conductive silver paste onto the battery sheets on the dispensing moving stage 4. See Figure 21 , which shows the positional relationship between the jet dispensing mechanism 3 and the dispensing moving stage 4. The welding structure can perform welding treatment on the battery sheets that are moved from the dispensing moving stage 4 to the welding mechanism through the intermediate moving mechanism 10. The translation and flipping mechanism 9 is used to move the battery string formed on the welding mechanism onto the discharge tray. See Figure 23 , which shows the welding structure. When the battery sheet passes through the jet dispensing mechanism 3, conductive silver paste will be sprayed on the battery sheet. On the welding mechanism, two battery sheets are stacked, and the conductive silver paste is heated. Then, during the cooling process of the conductive silver paste, the two battery sheets are adhesively connected by stacking. The string welding machine also includes a bus bar pulling and cutting mechanism 8. The bus bar pulling and cutting mechanism 8 is used to place the bus bar on the welding belt structure 5 of the welding structure, stack the battery sheets in sequence, and connect the head and tail with the guide sheet to form a battery string.

[0056] Regarding the battery sheet feeding device 1, the specific structure is as follows: See Figure 1, the battery sheet feeding device 1 includes a first frame body 110, a first support structure 120, a first driving device, and a blowing device. The first driving device and the blowing device are connected to the first frame body 110. The first support structure 120 is connected to the first driving device, and the first driving device can drive the first support structure 120 to move up and down. By driving the first support structure 120 to move downward through the first driving device and blowing air to the battery sheets stacked on the first support structure 120 through the blowing device, it is used to enable the material taking and moving mechanism 2 to adsorb only the uppermost battery sheet on the battery sheet support structure. The specific working process is as follows: When the material taking and moving mechanism 2 adsorbs the uppermost battery sheet on the first support structure 120, the first driving device synchronously drives the first support structure 120 to move downward to a set position, and at the same time, the blowing device is started. The blowing device blows air to the battery sheet, which is beneficial to separating another battery sheet in contact with the uppermost battery sheet from the uppermost battery sheet, so as to enable the material taking and moving mechanism 2 to adsorb only the uppermost battery sheet on the first support structure 120 and ensure the normal operation of the string welder. When the material taking and moving mechanism 2 adsorbs a battery sheet and moves away from the first support structure 120, the blowing device stops working, and the first driving device drives the first support structure 120 to move upward. When the position detection sensor detects the battery sheet, the position detection sensor transmits a signal to the control system so that the control system controls the first driving device to stop working, so as to ensure that the battery sheet at the uppermost position on the first support structure 120 can be located at the same position each time, which is convenient for the material taking and moving mechanism 2 to adsorb the battery sheet, and is also convenient for the blowing device to always blow to the battery sheet at the uppermost position on the first support structure 120 and another battery sheet in contact with the uppermost battery sheet.

[0057] Regarding the blowing device, the blowing device includes a blowing nozzle 130. The blowing nozzle 130 is distributed with air outlet small holes, and the air outlet small holes face the first support structure 120. The diameter range of the air outlet small holes is 0.1 mm to 0.4 mm, which is beneficial to the air flow ejected from the blowing nozzle 130 to be concentrated and sprayed on the battery sheet. The diameter of the air outlet small holes is preferably 0.2 mm. In addition, regarding the blowing device, it also includes structures such as an air source, an air pump, and a valve body, etc. It can be realized by using the existing technology to supply gas to the blowing nozzle 130, and no excessive limitation will be made here.

[0058] Regarding the first driving device, the first driving device includes a first driving motor 140 and a lead screw mechanism. The output shaft of the first driving motor 140 is connected to the lead screw of the lead screw mechanism. The slider of the lead screw mechanism is connected to the first support structure 120. The slider is connected to the first support structure 120 through a connecting shaft, and the connecting shaft passes through the first support structure 120. The first driving motor 140 is a servo motor. When the first driving motor 140 drives the lead screw to rotate forward, the slider moves upward, so as to realize the upward movement of the first support structure 120. When the first driving motor 140 drives the lead screw to rotate reversely, the slider moves downward, so as to realize the downward movement of the first support structure 120, and the position of the first support structure 120 is adjusted.

[0059] Regarding the first support structure 120, the details are as follows: The first support structure 120 is a plate-like structure. A guide rod 150 is arranged on the first frame 110. The guide rod 150 is used to limit the stacking of battery wafers on the first support structure 120. Refer to Figure 2 , a mating notch 160 is formed on the circumferential side wall of the first support structure 120, and the guide rods 150 are respectively inserted into the corresponding mating notches 160. Refer to Figure 3 , mating notches 160 are arranged on the four side walls of the first support structure 120, and each mating notch 160 corresponds to a guide rod 150. The battery wafers stacked on the first support structure 120 are limited by six guide rods 150.

[0060] Preferably, there is a guide rod 150 whose position on the first frame 110 is adjustable. The mating notch 160 is a long slot, and the position of the guide rod 150 can be adjusted in the direction close to or away from the center of the first support structure 120 along the length direction of the mating notch 160. Refer to Figure 2 , the positions of the guide rods 150 on the left and right sides and the upper side in the figure relative to the first frame 110 are adjustable. By adjusting the positions of the guide rods 150 on the first frame 110, rectangular battery wafers of different sizes and directions can be accommodated. The guide rod 150 can be detachably connected to the first frame 110 through bolts.

[0061] Regarding the material taking and moving mechanism 2, the details are as follows: The material taking and moving mechanism 2 includes a second adsorption structure, a second moving structure 220 and a correction structure 230. The second adsorption structure includes two second adsorption manipulators 210, and both second adsorption manipulators 210 are connected to the second moving structure 220. The correction structure 230 is arranged below the second adsorption structure, and the correction structure 230 is used to adjust the position of the battery wafer placed on the correction structure 230. The second moving structure 220 can drive the second adsorption structure to move. When one second moving structure 220 moves to directly above the correction structure 230, the other second moving structure 220 is located on the dispensing moving stage 4. Refer to Figure 3, two second adsorption manipulators 210 are shown. When the two second adsorption manipulators 210 are located at the first station, one of the second adsorption manipulators 210 (referred to as the right adsorption manipulator) is located directly above the battery sheet feeding device 1 (the second adsorption manipulator 210 includes two rows of suction nozzles, and the number of battery sheet feeding devices 1 is two, and the two rows of suction nozzles of the second adsorption manipulator 210 respectively correspond to the two battery sheet feeding devices 1), and the other second adsorption manipulator 210 (referred to as the left adsorption manipulator) is located directly above the correction structure. After the two second adsorption manipulators 210 complete the material taking, the two second adsorption manipulators 210 move (horizontally) driven by the moving structure until they move to the second station. At this time, the right adsorption manipulator is located directly above the correction structure, and the left adsorption manipulator is located directly above the dispensing moving stage 4. The right adsorption manipulator places the adsorbed battery sheet 7 on the correction structure, and the left adsorption manipulator places the battery sheet on the dispensing moving stage 4. After completion, the two second adsorption manipulators 210 are reset driven by the second moving structure 220. Regarding the second moving structure 220, a driving motor and a lead screw mechanism can be used to realize the horizontal movement of the second adsorption structure.

[0062] In addition, regarding the second adsorption manipulator 210, it includes suction nozzles. The suction nozzles are connected to structures such as an air compressor and a valve body. When it is necessary for the suction nozzles to adsorb the battery string, the adsorption connection between the suction nozzles and the battery string is realized by means of vacuum pumping. By filling gas into the suction nozzles, the connection between the suction nozzles and the battery string can be released.

[0063] Regarding the correction structure 230, it is as follows: The correction structure 230 includes a correction platform 231, an X-direction positioning mechanism, and a Y-direction positioning mechanism. The X-direction positioning mechanism and the Y-direction positioning mechanism are connected to the correction platform 231. Two correction support surfaces 232 are formed on the correction platform 231 (the two rows of suction nozzles of the left adsorption manipulator respectively correspond to the two correction support surfaces 232). The X-direction positioning mechanism and the Y-direction positioning mechanism are used to adjust the position of the battery sheet on the correction platform 231.

[0064] Regarding the Y-direction positioning mechanism, the specific structure is as follows: The Y-direction positioning mechanism includes a Y-direction cylinder 233, a Y-direction positioning strip 234, and a Y-direction adjusting rod 235. The Y-direction positioning strip 234 is fixed on the correction platform 231. The Y-direction cylinder 233 is arranged below the correction platform 231 and is connected to the Y-direction adjusting rod 235 through a Y-direction connection structure. Each correction support surface 232 corresponds to a Y-direction positioning strip 234 and a Y-direction adjusting rod 235. When the Y-direction cylinder 233 acts, it can drive the Y-direction adjusting rod 235 to push the battery sheet on the correction support surface 232 towards the Y-direction positioning strip 234, so that the long sides of the battery sheet are respectively attached to the corresponding Y-direction positioning strips 234. See Figure 4, two modified support surfaces 232 are shown, each modified support surface 232 corresponding to a Y-direction positioning bar 234 respectively, and the Y-direction positioning bar 234 is fixed on the modified platform 231. Refer to Figure 5 , a Y-direction cylinder 233 is shown, and the output shaft of the Y-direction cylinder 233 is connected to the Y-direction adjusting rod 235 through a connecting structure. Refer to Figure 4 , it is shown that each modified support surface 232 corresponds to two Y-direction adjusting rods 235. The Y-direction adjusting rods 235 are inserted into the modified support surface 232 from the bottom of the modified platform 231. When the output shaft of the Y-direction cylinder 233 extends, it can drive the Y-direction adjusting rods 235 to push the solar cells on the modified support surface 232 to move towards the Y-direction positioning bar 234, so that the long sides of the two solar cells are respectively attached to the corresponding Y-direction positioning bars 234; when the output shaft of the Y-direction cylinder 233 retracts, the Y-direction adjusting rods 235 move away from the corresponding Y-direction positioning bars 234.

[0065] Regarding the X-direction positioning mechanism, the specific structure is as follows: Refer to Figure 6 , the X-direction positioning mechanism includes a gripper finger cylinder 236, an X-direction pushing plate 237 and a gripper connection structure. The two oppositely arranged X-direction pushing plates 237 are connected to the gripper finger cylinder 236 through the gripper connection structure. When the gripper finger cylinder 236 acts, it can drive the two X-direction pushing plates 237 to move towards each other, so that the two short sides of the solar cell on the modified platform 231 are clamped between the two X-direction pushing plates 237. Regarding the action conditions of the Y-direction cylinder 233 and the gripper finger cylinder 236, it includes a control system and a detection device. When the detection device of the string welding machine detects that there is a solar cell on the modified support surface 232, the control system controls the Y-direction cylinder 233 and the gripper finger cylinder 236 to act. When it is detected that the solar cell contacts the X-direction pushing plate 237 and the Y-direction positioning bar 234, the control system controls the Y-direction cylinder 233 and the gripper finger cylinder 236 to reset.

[0066] Regarding the jet dispensing mechanism 3, the specific structure is as follows: The jet dispensing mechanism 3 further includes a third support frame 310, a dispensing nozzle 320, a horizontal adjustment mechanism 330, and a vertical adjustment mechanism 340. Among them, the dispensing nozzle 320 is arranged above the dispensing moving stage 4. The horizontal adjustment mechanism 330 is connected to the dispensing nozzle 320, the horizontal adjustment mechanism 330 is connected to the vertical adjustment mechanism 340, and the vertical adjustment mechanism 340 is connected to the third support frame 310. The horizontal adjustment mechanism 330 and the vertical adjustment mechanism 340 are respectively used to adjust the position of the dispensing nozzle 320 in the horizontal direction and the vertical direction. Both the horizontal adjustment mechanism 330 and the vertical adjustment mechanism 340 are manual fine-tuning slides. The dispensing nozzle 320 is a piezoelectric-driven needle-jet valve. Since there is no need to adjust the position of the dispensing nozzle 320 in real time, the position adjustment of the dispensing nozzle 320 is preferably set in a manual adjustment mode. Since the positions of the dispensing nozzle 320 and the dispensing moving stage 4 affect the dispensing effect, using a manual fine-tuning slide in the prior art is not only convenient for adjustment but also can accurately adjust the position of the dispensing nozzle 320.

[0067] Regarding the position of applying glue on the battery cell, the glue on the battery cell is in a thin line shape, with a width of 1 mm to 1.2 mm, distributed along the length direction of the battery cell and close to one side of the battery cell to achieve the lamination connection of the battery cells.

[0068] The dispensing moving stage 4 is a conveyor belt structure. The dispensing nozzle 320 is located above the dispensing moving stage 4. The battery cell is driven to move by the dispensing moving stage 4. When the battery cell passes by the dispensing nozzle 320, the dispensing nozzle 320 sprays conductive silver glue onto the battery cell.

[0069] Regarding the intermediate moving mechanism 10, it includes a driving motor, a lead screw structure, and an adsorption manipulator (the adsorption manipulator includes a suction nozzle). The driving motor is connected to the adsorption manipulator through the lead screw structure. When the driving motor is started, it can drive the adsorption manipulator to move horizontally through the lead screw structure, so as to move the battery cell on the dispensing moving stage 4 to the welding belt structure 5 of the welding mechanism; the structure of the adsorption manipulator can adsorb two battery cells at the same time.

[0070] Regarding the welding mechanism, the specific structure is as follows: The welding mechanism further includes a fourth support frame, a welding belt structure 5, and a welding lamp structure 6. The welding belt structure 5 and the welding lamp structure 6 are connected to the fourth support frame; a battery cell placement area 510, a preheating area 520, a welding area 530, and a slow cooling area 540 are formed on the welding belt structure 5. The welding lamp structure 6 is arranged above the welding area. The busbar pulling and cutting mechanism 8 can move the busbar to the welding area. Since the busbars also need to be welded to the front and rear ends of the battery string, the busbar pulling and cutting mechanism 8 is added. The temperature of the battery cell placement area 510 is controlled between 50°C and 60°C, the temperature of the preheating area 520 is controlled at about 100°C, the temperature of the welding area 530 is controlled at about 150°C. The welding lamp structure 6 is arranged above the welding area 530 and the welding lamp structure 6 is used to heat the glue on the battery cells and the busbars. In the slow cooling area 540, the solid connection between the battery cells and the busbars and between two adjacent battery cells is gradually achieved. The specific process is as follows: Using the busbar pulling and cutting mechanism 8, a busbar (with glue coated on the busbar) is first placed on the placement area 510, and then the intermediate moving mechanism 10 places one of the battery cells (referred to as the first battery cell) on the placement area 510 and there is an overlapping area with the busbar. Then the welding belt structure 5 operates to make the welding belt 550 rotate a certain distance, and the adsorption manipulator of the intermediate moving mechanism 10 also moves a certain distance horizontally, so that another battery cell (referred to as the second battery cell) on the intermediate moving mechanism 10 is stacked on the first battery cell. The area where the first battery cell and the second battery cell are in contact is coated with conductive silver glue; then the intermediate moving mechanism 10 moves back to the reset direction, adsorbs two more battery cells (which can be referred to as the third battery cell and the fourth battery cell) from the dispensing moving stage 4, and places the third battery cell and the fourth battery cell in the preheating area 520 in the same way as the first battery cell and the second battery cell, so that the third battery cell is stacked on the second battery cell and the fourth battery cell is stacked on the third battery cell. According to specific actual requirements, battery cells of different lengths are manufactured. For example, when four battery cells are needed to meet the requirements of the battery string, after the intermediate moving mechanism 10 places the fourth battery cell in the preheating area 520, the busbar pulling and cutting mechanism 8 operates to place the return busbar in the preheating area 520 and stack it with the fourth battery cell. After welding by the welding lamp structure 6, a battery string is formed.

[0071] Regarding the welding belt structure 5, the welding belt structure 5 includes a welding belt 550. The material of the welding belt 550 is a Teflon high-temperature resistant material. A battery cell transfer surface is formed on the welding belt 550. A heating device is arranged below the battery transfer surface. The heating device can be an electric heating tube. The electric heating tubes are distributed at intervals along the length direction of the welding belt structure 5. The electric heating tubes are supported on the frame of the welding belt structure 5. By controlling the temperature of the heating tubes, a battery cell placement area 510, a preheating area 520, a welding area 530, and a slow cooling area 540 are sequentially formed on the battery cell transfer surface, and the temperatures of the battery cell placement area 510, the preheating area 520, and the welding area 530 gradually increase. See Figure 8 , the welding belt 550 is sleeved on the support rollers of the welding belt structure 5. One of the support rollers is a driving roller, and the driving roller is connected to a support roller driving motor 560. In addition, in order to better achieve heat dissipation, heat dissipation holes are distributed on the welding belt 550, and the heat dissipation holes facilitate the transfer of the heat generated by the electric heating tubes to the upper part of the battery cell transfer surface.

[0072] Regarding the welding lamp structure 6, it includes a welding lamp support frame 610, a heating lamp structure 620, a welding lamp driving cylinder 630, a pressing needle structure 640, and a pressing needle driving cylinder 650. The welding lamp driving cylinder 630 and the pressing needle driving cylinder 650 are connected to the welding lamp support frame 610. The pressing needle structure 640 is located on the lower side of the heating lamp structure 620. The heating lamp structure 620 is connected to the welding lamp driving cylinder 630 and the welding lamp driving cylinder 630 can drive the heating lamp structure 620 to move up and down. The pressing needle structure 640 is connected to the pressing needle driving cylinder 650 and the pressing needle driving cylinder 650 can drive the pressing needle structure 640 to move up and down. When the welding belt 550 stops operating, the welding lamp structure 6 starts to operate to heat the battery cells located in the welding area 530. The specific process is as follows: The pressing needle structure 640 moves downward under the drive of the pressing needle driving cylinder 650 until it presses the battery cells. The heating lamp structure 620 also moves downward a certain distance under the drive of the welding lamp driving cylinder 630. At the same time, the heating lamp structure 620 is started to heat the battery cells and the colloid on the current collector bars. Then, the pressing needle structure 640 moves upward to the reset position under the drive of the pressing needle driving cylinder 650, and the heating lamp structure 620 moves to the reset position under the drive of the welding lamp driving cylinder 630. The battery cells move away from the welding lamp structure 6 under the drive of the welding belt 550, and the battery cells are stacked and adhered to each other and the connection between the current collector bars and the battery cells is realized during the gradual cooling of the colloid.

[0073] Regarding the connection between the pressing needle driving cylinder 650 and the pressing needle structure 640, it is specifically as follows: See Figure 10 and Figure 11, the needle pressing driving cylinder 650 is vertically arranged with its telescopic shaft facing upward. The needle pressing driving cylinder 650 is connected to the needle pressing structure 640 through a needle pressing connection structure. Slide rails are arranged on the opposite two side surfaces of the soldering lamp support frame body 610, and a chute is arranged on the needle pressing connection structure. The needle pressing connection structure is slidably connected to the soldering lamp support frame body 610, and the slide rails cooperate with the corresponding chutes on the needle pressing connection structure. When the telescopic shaft of the needle pressing driving cylinder 650 extends upward, the needle pressing connection structure and the needle pressing structure 640 move upward; when the telescopic shaft of the needle pressing driving cylinder 650 retracts downward, the needle pressing connection structure and the needle pressing structure 640 move downward. Regarding the needle pressing structure 640, it includes a small needle pressing support plate structure 642 and small needles 641. The small needle pressing support plate structure 642 is connected to the needle pressing connection structure, and the small needles 641 are distributed on the small needle pressing support plate structure 642.

[0074] Regarding the connection between the soldering lamp driving cylinder 630 and the heating lamp structure 620, it is as follows: Refer to Figure 9 , the soldering lamp driving cylinder 630 is vertically arranged with its telescopic shaft facing downward. The soldering lamp driving cylinder 630 is connected to the heating lamp structure 620 through a soldering lamp connection structure. Slide rails are arranged on the opposite two side surfaces of the soldering lamp support frame body 610, and the soldering lamp connection structure is slidably connected to the soldering lamp support frame body 610, and the slide rails cooperate with the corresponding chutes on the soldering lamp connection structure. When the telescopic shaft of the soldering lamp driving cylinder 630 extends downward, the soldering lamp connection structure and the heating lamp structure 620 move downward; when the telescopic shaft of the soldering lamp driving cylinder 630 retracts upward, the soldering lamp connection structure and the heating lamp structure 620 move upward. Regarding the heating lamp structure 620, it includes a number of heating tubes, and the heating lamp structure 620 further includes a cooling fan.

[0075] Regarding the bus bar pulling and cutting mechanism 8, the specific structure is as follows: The bus bar pulling and cutting mechanism 8 includes a bus bar support frame 810, a flux accommodating structure 820, a punching structure 830, a shearing structure 840, a pulling structure 850, and a bus bar moving structure 860. Among them, the flux accommodating structure 820, the punching structure 830, the shearing structure 840, and the pulling structure 850 are connected to the bus bar support frame 810. A bus bar reel 870 is connected to the bus bar support frame 810. The bus bar on the bus bar reel 870 can sequentially pass through the flux accommodating structure 820, the punching structure 830 and lead to the shearing structure 840. When the shearing structure 840 is in the reset state, the pulling structure 850 can hold the end of the bus bar and drive the bus bar to move away from the shearing structure 840. The shearing structure 840 is used to shear the bus bar passing through it. The bus bar moving structure 860 can move the cut bus bar towards the welding belt structure 5. Refer to Figure 12, which shows the bus bar pulling and cutting mechanism. The bus bar is wound around the bus bar coil 870, and the free end of the bus bar is led to the shearing structure 840 through the flux accommodating structure 820 and the punching structure 830. When the shearing structure 840 is in the reset state, the pulling structure 850 can hold the end of the bus bar and drive the bus bar to move away from the shearing structure 840. After moving to a set distance, the pulling structure 850 stops moving, and the shearing structure 840 operates to cut the bus bar passing through it. The pulling structure releases the clamped bus bar, moves in the reset direction, the shearing structure 840 resets, and after the pulling structure resets, it clamps the end of the bus bar. The bus bar moving structure 860 can move the cut bus bar towards the welding belt structure 5. When the bus bar passes through the flux accommodating structure 820, the flux in the flux accommodating structure 820 is coated on the passing bus bar, and the punching structure 830 is used to punch the bus bar.

[0076] Regarding the bus bar leading from the bus bar coil 870 to the flux accommodating structure 820, the specific description is as follows: Refer to Figure 12 , there are two bus bar coils 870, and a plurality of support rollers 880 are shown in the figure. The bus bar on the bus bar coil 870 bypasses the plurality of support rollers 880 and then leads to the flux accommodating structure 820.

[0077] Regarding the flux accommodating structure 820, the specific structure is as follows: Refer to Figure 13 , the flux accommodating structure 820 includes a flux box 821 and a sponge member. The sponge member is arranged in the flux box 821. The flux box 821 is supported on the flux box bracket, and a through hole 822 is formed on the flux box 821. Refer to Figure 13 , it shows that the bus bar passes through the through hole 822. A liquid injection hole 823 is arranged at the top of the flux box 821. The liquid injection hole 823 is connected to the flux supply device. The flux supply device provides flux liquid to the sponge member in the flux box 821 through the liquid injection hole 823. The bus bar passes through the flux box 821 through the through hole 822, and when the bus bar passes through the flux box 821, it contacts the sponge member adsorbed with liquid flux, so that the flux can be attached to the bus bar passing through the flux box 821.

[0078] Regarding the punching structure 830, the specific structure is as follows: Refer to Figure 14, the punching structure 830 includes a punching driving cylinder 831, a first moving template 832, a second moving template 833, a fixed template 834 and a punching block. The fixed template 834 is supported on the punching bracket. The fixed template 834, the second moving template 833 and the first moving template 832 are arranged in sequence along the height direction. The punching driving cylinder 831 is connected to the first moving template 832. The first moving template 832 is fixedly connected to the punching block and the punching block is inserted into the second moving template 833. Elastic components and vertical guiding columns 835 are arranged between the second moving template 833 and the fixed template 834 and between the first moving template 832 and the second moving template 833. When the punching driving cylinder 831 drives the first moving template 832 to move downward, the second moving template 833 can move downward and the punching block can punch the bus bar clamped between the fixed template 834 and the second moving template 833. See Figure 14 , the vertical guiding columns 835 are fixed on the fixed template 834. The vertical guiding columns 835 pass through the first moving template 832 and the second moving template 833, and the first moving template 832 and the second moving template 833 can move downward relative to the vertical guiding columns 835. Elastic components (springs) are sleeved on the vertical guiding columns 835. When the punching driving cylinder 831 drives the first moving template 832 to move downward, the second moving template 833 can move downward and the punching block can punch the bus bar clamped between the fixed template 834 and the second moving template 833. When the punching driving cylinder 831 resets, the first moving template 832 can reset under the action of the elastic components.

[0079] Regarding the specific structure of the shearing structure 840, it can be as follows: See Figure 15 , the shearing structure 840 includes an upper shearing knife 841, a lower shearing knife 842, an upper shearing driving cylinder 843 and a lower shearing driving cylinder 844. The upper shearing driving cylinder 843 is connected to the upper shearing knife 841, and the lower shearing driving cylinder 844 is connected to the lower shearing knife 842. The upper shearing driving cylinder 843 and the lower shearing driving cylinder 844 are connected to the shearing bracket. By driving the upper shearing knife 841 to move downward through the upper shearing driving cylinder 843 and driving the lower shearing knife 842 to move upward through the lower shearing driving cylinder 844 to shear the bus bar passing through the upper shearing knife 841 and the lower shearing knife 842. See Figure 15 , shows the shearing structure 840 in the shearing state, and the upper shearing knife 841 and the lower shearing knife 842 cooperate to shear the bus bar passing through the shearing structure 840. After shearing is completed, the upper shearing driving cylinder 843 drives the upper shearing knife 841 to move upward, and the lower shearing driving cylinder 844 drives the lower shearing knife 842 to move downward to realize the reset of the upper shearing knife 841 and the lower shearing knife 842.

[0080] Regarding the specific structure of the pulling structure 850, it can be as follows: See Figure 16, the pulling structure 850 includes a clamping structure and a clamping driving structure 851. There are two clamping structures, and the clamping structures are connected to the clamping driving structure 851. The clamping structures are used to clamp and release the free ends of the busbars. The clamping driving structure 851 can drive the clamping structures to move away from the shearing structure 4. See Figure 17 , which shows two clamping structures. The two clamping structures respectively correspond to two busbar disks 870. The two clamping structures are connected to the clamping driving structure 851. The clamping driving structure 851 can be a motor and a lead screw mechanism, which drives the clamping structures to move horizontally. Figure 6 also shows the feeding carrier 852. After the busbar is sheared, the clamping structures release the clamped busbar. The clamping structures move in the reset direction under the drive of the clamping driving structure 851, the shearing structure 4 resets, and after the clamping structures reset, they clamp the ends of the busbars. The busbars on the feeding carrier 852 are sucked and placed on the welding belt structure 5 under the action of the busbar moving structure 860. Regarding the clamping driving structure 851, it includes a motor, a lead screw, and a slider structure. The slider structure is connected to the clamping structures. By the action of the motor, the lead screw rotates to drive the slider structure to move horizontally. See Figure 24 , which shows that the clamping driving structure 851 and the feeding carrier 852 straddle the welding belt structure 5. See Figure 8 , which shows the position of the busbar moving structure 860 relative to the feeding carrier 852 and the welding belt structure 5.

[0081] Regarding the clamping structures, the specific structure is as follows: See Figure 17 , the clamping structures include a clamping cylinder 853, an intermediate connecting piece 854, a triangular plate 855, and a bottom support structure 856. The telescopic shaft of the clamping cylinder 853 is rotatably connected to one end of the intermediate connecting piece 854, the other end of the intermediate connecting piece 854 is rotatably connected to the first corner end part of the triangular plate 855, the second corner end part of the triangular plate 855 is rotatably connected to the bottom support structure 856, the bottom support structure 856 is connected to the housing of the clamping cylinder 853, and a clamping plate 857 is arranged at the third corner end part of the triangular plate 855. When the telescopic shaft of the clamping cylinder 853 extends outwards, it can drive the triangular plate 855 to rotate. See Figure 17 , when the telescopic shaft of the clamping cylinder 853 extends outwards, the clamping plate 857 rotates towards the direction close to the bottom support structure 856, so that the end of the busbar 51 can be clamped between the clamping plate 857 and the bottom support structure 856. When the telescopic shaft of the clamping cylinder 853 retracts into the cylinder, the clamping plate 857 rotates away from the bottom support structure 856, and the clamping plate 857 and the bottom support structure 856 release the end of the busbar 51.

[0082] Regarding the busbar moving structure 860, the specific structure is as follows. SeeFigure 8 , the bus bar moving structure 860 includes a nozzle, a cylinder, a lead screw mechanism, and a motor. A row of nozzles is connected to the telescopic shaft of the cylinder, and the cylinder can drive the nozzles to move up and down. The motor is connected to the lead screw mechanism. The lead screw of the lead screw mechanism is connected to the motor, and the slider structure of the lead screw mechanism is connected to the cylinder. The motor and the lead screw mechanism are used to realize the horizontal movement of the nozzles and the cylinder. Through the bus bar moving structure 860, the bus bar on the blanking carrier 852 is moved to the placement area 510 on the welding belt structure 5.

[0083] Regarding the translation and flipping mechanism 9, the details are as follows: The translation and flipping mechanism 9 includes a translation conveyor belt structure 901, a translation structure, and a flipping structure. Among them, the translation conveyor belt structure 901 is adjacent to the welding mechanism. The translation conveyor belt structure 901 is arranged on one side of the welding belt structure 5. The battery string on the welding belt structure 5 can be moved to the translation conveyor belt structure 901. The flipping structure is arranged on one side of the translation structure, and the translation structure is used to place the battery string on the welding belt structure 5 on the flipping structure. The translation structure includes a translation nozzle 980 and a translation driving structure. The translation nozzle 980 is connected to the translation driving structure. The translation driving structure can drive the translation nozzle 980 to move in the horizontal and vertical directions. The translation nozzle 980 is arranged above the translation conveyor belt structure 901. The flipping structure includes a flipping nozzle 990 and a flipping driving structure. The flipping nozzle 990 is connected to the flipping driving structure. The flipping driving structure can drive the flipping nozzle 990 and the battery string arranged on the flipping nozzle 990 to flip.

[0084] Regarding the translation driving structure, the details are as follows: Refer to Figure 18 - 20, the translation driving structure includes a translation horizontal beam 930, a translation vertical cylinder 920, a translation driving motor 940 and a lead screw mechanism. The translation driving motor 940 is supported on the translation frame of the translation driving structure. The translation driving motor 940 is connected to the lead screw mechanism. The slider structure of the lead screw mechanism is connected to the translation vertical cylinder 920. The telescopic shaft of the translation vertical cylinder 920 is connected to the translation horizontal beam 930. Translation suction nozzles 980 are arranged on the lower side of the translation horizontal beam 930. The translation suction nozzles 980 are spaced along the length direction of the translation horizontal beam 930 on the translation horizontal beam 930. When the translation driving motor 940 operates, it drives the lead screw to rotate, and then makes the slider structure move horizontally, so as to drive the translation vertical cylinder 920 and the translation horizontal beam 930 to move horizontally; the telescopic shaft of the translation vertical cylinder 920 is connected to the translation horizontal beam 930. When the translation vertical cylinder 920 operates, it can drive the translation horizontal beam 930 to move up and down. Connecting rods are arranged on the translation horizontal beam 930. The connecting rods are spaced along the length direction of the translation horizontal beam 930 on the translation horizontal beam 930, and the length extension direction of the connecting rods is perpendicular to the length extension direction of the translation horizontal beam 930. A translation suction nozzle 980 is arranged on each connecting rod. More than one translation suction nozzle 980 is arranged on each connecting rod. When two translation suction nozzles 980 are arranged on each connecting rod, the translation suction nozzles 980 are spaced along the length extension direction of the connecting rod.

[0085] When moving the battery string on the translation conveyor belt structure 901 towards the flipping driving structure, the telescopic shaft of the translation vertical cylinder 920 extends, the translation horizontal beam 930 moves downward, the translation suction nozzles 980 adsorb the battery string on the translation conveyor belt structure 901, the telescopic shaft of the translation vertical cylinder 920 retracts, the translation horizontal beam 930 moves upward. After moving in place, the translation driving motor 940 and the lead screw mechanism drive the translation horizontal beam 930 to move horizontally. After moving in place, the telescopic shaft of the translation vertical cylinder 920 extends, the translation horizontal beam 930 moves downward, and the translation suction nozzles 980 release the battery string, and the battery string falls on the flipping driving structure.

[0086] Regarding the flipping driving structure, it is as follows: Refer to Figure 19 - 20 , the flipping driving structure includes a flipping beam 950, a flipping driving motor 960 and a transmission mechanism. The two ends of the flipping beam 950 are respectively supported on the flipping frame of the flipping structure, and the flipping beam 950 is rotatably connected to the flipping frame. The flipping driving motor 960 is connected to one end of the flipping beam 950 through the transmission mechanism. The flipping driving motor 960 can drive the flipping beam 950 to rotate through the transmission mechanism. Refer to Figure 20 , which shows the battery cell located on the flipping suction nozzle 990; Refer to Figure 20, which shows the flipping drive motor 960. The transmission mechanism can be a gear transmission structure or a pulley transmission structure. When the flipping drive motor 960 operates, it drives one end of the flipping beam 950 to rotate through the gear transmission structure or the pulley transmission structure; see Figure 19 and Figure 20 , which is the reset state of the flipping beam 950. When it is detected that there is a battery string on the flipping suction nozzle 990, the flipping drive motor 960 starts, drives the flipping beam 950 to rotate counterclockwise, and the flipping suction nozzle 990 starts to rotate upward and then downward. When it rotates nearly 180°, the flipping drive motor 960 stops rotating, the position of the flipping beam 950 remains unchanged, and the flipping suction nozzle 990 releases the adsorption of the battery string so that the battery string falls on the discharging tray. Then the flipping drive motor 960 rotates clockwise to reset the position of the flipping suction nozzle 990.

[0087] Embodiment 2:

[0088] Different from Embodiment 1, the string welding machine does not include the busbar pulling and cutting mechanism 8. Instead, it is replaced by a busbar transferring structure 7, and the busbar transferring structure 7 is used to place the busbar on the welding belt structure 5 of the welding structure.

[0089] See Figure 25 , which shows the busbar transferring structure 7. The busbar transferring structure 7 includes a busbar support, a busbar adsorption device, a busbar driving device, and a busbar placement table. The busbar adsorption device is connected to the busbar support through the busbar driving device and the busbar driving device can drive the busbar adsorption device to move. The busbar placement table straddles the welding belt structure 5. The busbar adsorption device is used to adsorb the busbar placed on the busbar placement table, and a glue box is arranged on the busbar placement table.

[0090] Regarding the busbar driving device, see Figure 26, the busbar driving device includes a cylinder, a lead screw mechanism and a motor. The busbar adsorption device (the busbar adsorption device includes a suction nozzle) is connected to the telescopic shaft of the cylinder. The suction nozzle can be driven to move up and down by the cylinder. The motor is connected to the lead screw mechanism. The lead screw of the lead screw mechanism is connected to the motor, and the slider structure of the lead screw mechanism is connected to the cylinder. The suction nozzle and the cylinder are moved horizontally through the motor and the lead screw mechanism. Through the busbar driving device, the busbar on the busbar placement table is moved to the placement area 510 on the welding belt structure 5. The specific operation is as follows: The cylinder drives the suction nozzle to move downward to adsorb the busbar on the busbar placement table. Then the cylinder drives the suction nozzle and the busbar to move upward. The cylinder is driven to move horizontally through the lead screw mechanism and the motor. When it moves to directly above the glue box of the busbar placement table, the motor stops operating. The cylinder drives the busbar to move downward so that the busbar contacts the colloid in the glue box. Then the cylinder drives the busbar to move upward. After moving in place, the lead screw mechanism and the motor drive the cylinder to move horizontally so that the busbar moves above the placement area 510 of the welding belt structure 5. Then the operation is started to drive the busbar to move downward. After moving in place, the cylinder stops operating, and the suction nozzle contacts and releases the adsorption effect on the busbar, so that the busbar falls on the placement area 510.

[0091] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A string welding machine, characterized in that, It includes a battery cell feeding device (1), a material taking and moving mechanism (2), a dispensing moving stage (4), a jet dispensing mechanism (3), an intermediate moving mechanism (10), a welding mechanism, and a translation and flipping mechanism (9). Among them, the material taking and moving mechanism (2) is arranged on one side of the battery cell feeding device (1). The battery cells are placed on the battery cell feeding device (1), and the material taking and moving mechanism (2) can place the battery cells on the battery cell feeding device (1) on the dispensing moving stage (4); the jet dispensing mechanism (3) is arranged on one side of the dispensing moving stage (4), and the jet dispensing mechanism (3) can spray conductive silver paste onto the battery cells on the dispensing moving stage (4). The welding mechanism can perform welding treatment on the battery cells that are moved from the dispensing moving stage (4) to the welding mechanism through the intermediate moving mechanism (10). The translation and flipping mechanism (9) is used to move the battery string formed on the welding mechanism to the discharging tray; the string welding machine further includes a bus bar pulling and cutting mechanism (8) or a bus bar moving and placing structure (7), and the bus bar pulling and cutting mechanism (8) or the bus bar moving and placing structure (7) is used to place the bus bar on the welding belt structure (5) of the welding mechanism.

2. The string welding machine according to claim 1, wherein The battery cell feeding device (1) includes a first frame body (110), a first support structure (120), a first driving device, and a blowing device. The first driving device and the blowing device are connected to the first frame body (110). The first support structure (120) is connected to the first driving device, and the first driving device can drive the first support structure (120) to move up and down. By driving the first support structure (120) to move downward through the first driving device and blowing air onto the battery cells stacked on the first support structure (120) through the blowing device, it is used to enable the material taking and moving mechanism (2) to adsorb only the topmost battery cell on the battery cell support structure.

3. The string welding machine according to claim 1, wherein, The material taking and moving mechanism (2) includes a second adsorption structure, a second moving structure (220), and a correction structure (230). The second adsorption structure includes two second adsorption manipulators (210), and both of the two second adsorption manipulators (210) are connected to the second moving structure (220). The correction structure (230) is arranged below the second adsorption structure, and the correction structure (230) is used to adjust the position of the battery cell placed on the correction structure (230). The second moving structure (220) can drive the second adsorption structure to move, and when one second adsorption manipulator (210) moves directly above the correction structure (230), the other second adsorption manipulator (210) is located on the dispensing moving stage (4).

4. The string welding machine according to claim 3, characterized in that, The correction structure (230) includes a correction platform (231), an X-direction positioning mechanism, and a Y-direction positioning mechanism. The X-direction positioning mechanism and the Y-direction positioning mechanism are connected to the correction platform (231). One or more than two correction support surfaces (232) are formed on the correction platform (231). The X-direction positioning mechanism and the Y-direction positioning mechanism are used to adjust the position of the battery cell on the correction platform (231). The Y-direction positioning mechanism includes a Y-direction cylinder (233), a Y-direction positioning bar (234), and a Y-direction adjusting rod (235). The Y-direction positioning bar (234) is fixed on the correction platform (231). The Y-direction cylinder (233) is arranged below the correction platform (231) and is connected to the Y-direction adjusting rod (235) through a Y-direction connection structure. Each correction support surface (232) corresponds to the Y-direction positioning bar (234) and the Y-direction adjusting rod (235). When the Y-direction cylinder (233) acts, it can drive the Y-direction adjusting rod (235) to push the battery cell on the correction support surface (232) to move towards the Y-direction positioning bar (234), so that the long sides of the battery cell are respectively attached to the corresponding Y-direction positioning bars (234). The X-direction positioning mechanism includes a gripper finger cylinder (236), an X-direction pushing plate (237), and a gripper connection structure. The two oppositely arranged X-direction pushing plates (237) are connected to the gripper finger cylinder (236) through the gripper connection structure. When the gripper finger cylinder (236) acts, it can drive the two X-direction pushing plates (237) to move towards each other, so that the two short sides of the battery cell on the correction platform (231) are clamped between the two X-direction pushing plates (237).

5. The string welding machine according to claim 1, characterized in that, The jet dispensing mechanism (3) further includes a third support frame body (310), a dispensing nozzle (320), a horizontal adjustment mechanism (330), and a vertical adjustment mechanism (340). Among them, the dispensing nozzle (320) is arranged above the dispensing moving stage (4). The horizontal adjustment mechanism (330) is connected to the dispensing nozzle (320). The horizontal adjustment mechanism (330) is connected to the vertical adjustment mechanism (340). The vertical adjustment mechanism (340) is connected to the third support frame body (310). The horizontal adjustment mechanism (330) and the vertical adjustment mechanism (340) are respectively used to adjust the position of the dispensing nozzle (320) in the horizontal direction and the vertical direction. The horizontal adjustment mechanism (330) and the vertical adjustment mechanism (340) are both manual fine-tuning slide tables.

6. The string welding machine according to claim 1, wherein The welding mechanism further includes a fourth support frame and a welding lamp structure (6). The welding belt structure (5) and the welding lamp structure (6) are connected to the fourth support frame. A battery cell placement area (510), a preheating area (520), a welding area (530), and a slow cooling area (540) are formed on the welding belt structure (5). The welding lamp structure (6) is arranged above the welding area (530).

7. The string welding machine according to claim 6, wherein, The soldering lamp structure (6) includes a soldering lamp support frame body (610), a heating lamp structure (620), a soldering lamp driving cylinder (630), a pressure pin structure (640), and a pressure pin driving cylinder (650). The soldering lamp driving cylinder (630) and the pressure pin driving cylinder (650) are connected to the soldering lamp support frame body (610). The pressure pin structure (640) is located on the lower side of the heating lamp structure (620). The heating lamp structure (620) is connected to the soldering lamp driving cylinder (630), and the soldering lamp driving cylinder (630) can drive the heating lamp structure (620) to move up and down. The pressure pin structure (640) is connected to the pressure pin driving cylinder (650), and the pressure pin driving cylinder (650) can drive the pressure pin structure (640) to move up and down.

8. The string welding machine according to claim 1, characterized in that, The busbar pulling and cutting mechanism (8) includes a busbar support frame (810), a soldering flux accommodating structure (820), a punching structure (830), a shearing structure (840), a pulling structure (850), and a busbar moving structure (860). Among them, the soldering flux accommodating structure (820), the punching structure (830), the shearing structure (840), and the pulling structure (850) are connected to the busbar support frame (810). A busbar reel (870) is connected to the busbar support frame (810). The busbar on the busbar reel (870) can sequentially pass through the soldering flux accommodating structure (820), the punching structure (830), and lead to the shearing structure (840). When the shearing structure (840) is in the reset state, the pulling structure (850) can hold the end of the busbar and drive the busbar to move away from the shearing structure (840). The shearing structure (840) is used to shear the busbar passing through it. The busbar moving structure (860) can move the cut busbar towards the welding belt structure (5).

9. The string welding machine according to claim 1, wherein, The busbar transferring and placing structure (7) includes a busbar support, a busbar adsorption device, a busbar driving device, and a busbar placing table. The busbar adsorption device is connected to the busbar support through the busbar driving device, and the busbar driving device can drive the busbar adsorption device to move. The busbar placing table straddles the welding belt structure (5). The busbar adsorption device is used to adsorb the busbar placed on the busbar placing table, and a glue box is arranged on the busbar placing table.

10. The string welding machine according to claim 1, wherein The translation and flipping mechanism (9) includes a translation conveyor belt structure (901), a translation structure, and a flipping structure. Among them, the translation conveyor belt structure (901) is adjacent to the welding mechanism, the flipping structure is arranged on one side of the translation structure, and the translation structure is used to place the battery string on the welding belt structure (5) on the flipping structure; the translation structure includes a translation suction nozzle (980) and a translation driving structure, the translation suction nozzle (980) is connected to the translation driving structure, the translation driving structure can drive the translation suction nozzle (980) to move in the horizontal and vertical directions, and the translation suction nozzle (980) is arranged above the translation conveyor belt structure (901); the flipping structure includes a flipping suction nozzle (990) and a flipping driving structure, the flipping suction nozzle (990) is connected to the flipping driving structure, and the flipping driving structure can drive the flipping suction nozzle (990) and the battery string arranged on the flipping suction nozzle (990) to flip.

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