Solder strip carrying and UV pre-curing mechanism and method

Abstract

The invention relates to equipment and a method specially used for manufacturing a solar cell string, in particular to a solder strip carrying and UV pre-curing mechanism and a solder strip carrying and UV pre-curing method, which are used for solving the defects of insufficient accuracy, easiness in deviation, difficulty in quality control and the like in the solder strip carrying, positioning and curing process in the prior art. In the welding strip carrying and UV pre-curing mechanism, each carrying and pre-curing unit comprises a lifting device, an adsorption plate, a pressing needle device, a UV lamp panel and M vacuum generators; solder strip carrying is achieved through the adsorption plate and the M vacuum generators, UV pre-curing is achieved through the UV lamp panel, the lifting mechanism and the moving device are combined, accurate alignment of the solder strip in the adsorption, carrying, pressing and curing processes is guaranteed, the welding strip fixing device can efficiently and accurately fix the solder strip on a solar cell piece, and the process quality and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to equipment and a method specially used for stringing solar cell sheets, and in particular to a welding strip conveying and UV pre-curing mechanism and a method. Background Art

[0002] Reference Figure 1 , a busbarless XBC battery string includes X solar cells 01 arranged in sequence, a long welding strip 021 with a length of L1 and a short welding strip 022 with a length of L2, X≥2; each long welding strip 021 is arranged on two solar cells 01, and multiple long welding strips 021 realize the series connection of the 1st to Xth solar cells 01, and two short welding strips 022 are respectively arranged on the 1st and Xth solar cells 01 to draw out current; in the preparation of the busbarless XBC battery string, the welding strip 02 needs to be accurately transported to the pre-printed UV glue and cured. The traditional method of transporting the welding strip 02 by the stringer usually adopts a clamping mechanism, which clamps the welding strip 02 and places it at the specified position of the battery cell. However, in actual operation, there are several problems with the way of clamping and transporting the welding strip:

[0003] (1) The soldering ribbon is easy to deform: The soldering ribbon is made of thin copper-aluminum foil. During the traditional clamping and handling process, due to uneven force, the soldering ribbon is easy to flip over, affecting the subsequent positioning and pasting quality.

[0004] (2) Placement deviation: The existing clamping mechanism releases the solder ribbon at a certain height. Since the release position is unstable, the solder ribbon is easily deviated from the target position after placement and cannot be accurately aligned with the UV glue, resulting in poor bonding effect.

[0005] (3) UV glue curing delay: The current transport mechanism does not integrate the UV glue pre-curing function. The solder ribbon cannot be cured immediately after being transported to the battery cell, but needs to be transported to the next station for bonding and fixing. During the transportation process, the position of the solder ribbon and the UV glue is prone to offset, affecting the final curing effect and posing a risk to product quality.

[0006] The existing technology has problems such as insufficient precision, easy deviation and difficult quality control in the process of welding ribbon handling, positioning and curing. Therefore, there is an urgent need for a technical solution that can improve the handling accuracy and stability and integrate the UV glue pre-curing function to optimize the preparation process of busbar-free XBC battery components and improve product quality. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art in the process of solder strip handling, positioning and curing, such as insufficient accuracy, easy deviation and difficult quality control, and to provide a solder strip handling and UV pre-curing mechanism and method.

[0008] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides the following technical solutions:

[0009] A solder strip handling and UV pre-curing mechanism, which is special in that it includes a fixed bracket and N handling and pre-curing units; N≥1;

[0010] The fixed bracket is provided with a moving device that moves in a horizontal direction, and the N transporting pre-curing units are provided on the moving device;

[0011] Each of the transport pre-curing units comprises a lifting device, a pressure needle device and M vacuum generators, M≥2; the lifting device is arranged on the mobile device; the pressure needle device comprises a pressure needle driving assembly arranged at the driving end of the lifting device, a support plate arranged at the driving end of the pressure needle driving assembly, a pressure needle connecting plate arranged below the support plate, and a plurality of spring pressure needles arranged on the bottom surface of the pressure needle connecting plate; the support plate and the pressure needle connecting plate are connected by a plurality of connecting shafts, the top surface of the pressure needle connecting plate is provided with an adsorption plate, and the bottom surface is provided with a UV lamp board; the lifting device is used to drive the adsorption plate to move in the vertical direction;

[0012] The plurality of spring pressure pins pass through the UV lamp board and are used to press the soldering tape onto the solar cell sheet so that it is in close contact with the UV glue;

[0013] The bottom surface of the adsorption plate is provided with M groups of adsorption holes; each group of adsorption holes is arranged in a row-column matrix, and the row direction is perpendicular to the length direction of the welding strip, and the number of rows of each group of adsorption holes is greater than or equal to 3;

[0014] Each group of adsorption holes is controlled by a vacuum generator. Each adsorption hole is connected to a suction cup. The adsorption end of each suction cup passes through the pressure needle connecting plate and the UV lamp board in turn to adsorb the corresponding solder strip.

[0015] The UV lamp board includes a plurality of UV lamp beads, and the plurality of UV lamp beads are used to correspond to the positions of the UV glue on the solar cell sheet to cure the UV glue.

[0016] Furthermore, the M groups of adsorption holes are arranged in sequence along the length direction of the welding strip;

[0017] The M group of adsorption holes is used to adsorb the same long welding strip on two adjacent solar cells or the short welding strip on the same solar cell;

[0018] Every two groups of continuous adsorption holes are used to adsorb the same long welding strip on two adjacent solar cell sheets.

[0019] Furthermore, the value of M is 4;

[0020] The four groups of adsorption holes are the first group of adsorption holes, the second group of adsorption holes, the third group of adsorption holes, and the fourth group of adsorption holes;

[0021] The first group of adsorption holes and the second group of adsorption holes are used to adsorb the long welding strips on the first and second solar cell sheets among three solar cell sheets arranged in sequence, and the third group of adsorption holes and the fourth group of adsorption holes are used to adsorb the long welding strips on the second and third solar cell sheets among three solar cell sheets arranged in sequence.

[0022] Furthermore, the first group of adsorption holes and the second group of adsorption holes are also used to simultaneously adsorb the short welding ribbon on the last solar cell sheet in the previous busbarless XBC battery string and the short welding ribbon on the first solar cell sheet in the next busbarless XBC battery string.

[0023] Furthermore, the UV lamp board includes a substrate arranged on the bottom surface of the pressure pin connecting plate, the multiple UV lamp beads arranged on the bottom surface of the substrate, and a shading component; the shading component includes a shading plate and multiple shading foams; the shading plate is located at the end of the substrate close to the adjacent transport pre-curing unit to block the UV glue on the adjacent solar cell sheets; the multiple shading foams are divided into multiple rows, and a UV lamp bead is arranged between adjacent shading foams in each row of shading foams to block the UV lamp bead; the multiple spring pressure pins pass through the substrate and are arranged in a row and column matrix; the column direction of the multiple spring pressure pins is parallel to the extension direction of the welding strip.

[0024] Further, the moving device comprises a linear motor and a mounting plate arranged at a driving end of the linear motor, and the vacuum generator is arranged on the mounting plate;

[0025] The lifting device comprises a lifting assembly arranged on a mounting plate, a guide rail connecting plate arranged at a driving end of the lifting assembly, and a linear guide rail arranged on the guide rail connecting plate; the lifting assembly comprises a servo motor, a lead screw, and a lifting cylinder connecting plate; the servo motor is arranged on the mounting plate, and the driving end is connected to the lifting cylinder connecting plate through a lead screw, and the guide rail connecting plate is arranged on the lifting cylinder connecting plate;

[0026] The needle pressing drive assembly comprises a needle pressing cylinder and a needle pressing cylinder connecting plate; the needle pressing cylinder is arranged on a linear guide rail, and a driving end thereof is connected to the needle pressing cylinder connecting plate, and the support plate is arranged on the needle pressing cylinder connecting plate.

[0027] A method for solder strip handling and UV pre-curing, using the above-mentioned solder strip handling and UV pre-curing mechanism, comprises the following steps:

[0028] Step 1: Cut the welding ribbon to be transported according to the preset length and place it in the loading area;

[0029] Step 2, start the corresponding vacuum generator according to the length and position of the solder strip, then use the lifting device to lower the adsorption plate to the loading area of ​​the solder strip, and use each suction cup on the adsorption plate to adsorb the corresponding solder strip through the adsorption hole; then use the lifting device to drive the adsorption plate to rise to the moving position, and then use the moving device to horizontally move the adsorption plate to move the solder strip to the top of the solar cell; then use the lifting device to drive the adsorption plate to descend, and place each solder strip at a preset position on the solar cell; then start the pressing needle drive component of the pressing needle device, and the pressing needle drive component drives each spring pressing needle to press the corresponding solder strip onto the UV glue of the solar cell;

[0030] Step 3: Start the UV lamp beads on the UV lamp board to partially pre-cure the UV glue between the soldering ribbon and the solar cell sheet;

[0031] Step 4: turn off the vacuum generator opened in step 2 to release the adsorption state of the adsorption plate and all the welding strips, and then the lifting device drives the adsorption plate to rise and return to the initial height;

[0032] Step 5: The mobile device drives the adsorption plate back to the loading area, and a new round of operations is started according to steps 2 to 4 until the solder ribbons of all solar cells are transported and UV pre-cured.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] (1) In a solder strip transport and UV pre-curing mechanism of the present invention, each transport and pre-curing unit includes a lifting device, an adsorption plate, a needle pressing device, a UV lamp board and M vacuum generators; wherein the adsorption plate and the M vacuum generators realize the transport of the solder strip, the UV lamp board realizes UV pre-curing, and the combination of the lifting mechanism and the moving device ensures the precise alignment of the solder strip during the adsorption, transport, pressing and curing processes, so that the present invention can efficiently and accurately complete the fixation of the solder strip on the solar cell sheet, thereby improving the process quality and production efficiency.

[0035] (2) The present invention is provided with M groups of adsorption holes, each group of adsorption holes can be independently controlled by a vacuum generator, so that welding ribbons of different lengths and specifications can be adapted by simply adjusting the grouping. A single adsorption plate can serve multiple solar cells at the same time. The present invention effectively solves the limitations of the traditional single adsorption solution during the welding ribbon transportation and UV pre-curing process, significantly improves the adaptability, accuracy and stability of the equipment, and optimizes resource utilization and maintenance costs.

[0036] (3) The present invention provides a method for conveying and UV pre-curing the solder strip, comprising the steps of: adsorbing the solder strip, lifting and moving it to a target position, pressing the solder strip and UV pre-curing it, and finally releasing the solder strip and resetting it; the present invention adopts an adsorption conveying method to replace the traditional clamping mechanism, thereby avoiding the problem of the solder strip flipping or damage caused by uneven clamping force; and ensures the close contact between the solder strip and the UV glue through a needle pressing device, and provides a more secure initial fixation in combination with UV pre-curing; in addition, the lifting, translation, pressing and curing operations are automatically connected to reduce manual intervention and realize an efficient continuous production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of a busbar-less XBC battery assembly;

[0038] Figure 2 It is a structural schematic diagram of an embodiment of a solder strip conveying and UV pre-curing mechanism of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the adsorption plate and the UV lamp board in the embodiment of the present invention;

[0040] Figure 4 It is a structural schematic diagram of a needle pressing device and a lifting device in an embodiment of the present invention;

[0041] Figure 5 Schematic diagram of the distribution of long welding strips with a length of L1 on two solar cell sheets in an embodiment of the present invention;

[0042] Figure 6 1 is a diagram showing the corresponding relationship between a long welding strip of length L1 and four groups of adsorption holes in an embodiment of the present invention;

[0043] Figure 7 Schematic diagram of the distribution of short welding strips with a length of L2 on two solar cell sheets in an embodiment of the present invention;

[0044] Figure 8 : is a corresponding relationship diagram between a short welding strip of length L2 and two groups of adsorption holes in an embodiment of the present invention;

[0045] The reference numerals are as follows: 01-solar cell; 02-solder strip; 021-long solder strip; 022-short solder strip; 03-UV adhesive;

[0046] 10-Fix bracket;

[0047] 20-moving device; 201-linear motor; 202-mounting plate;

[0048] 30-vacuum generator;

[0049] 401-adsorption plate; 402-suction cup; 403-first group of adsorption holes; 404-second group of adsorption holes; 405-third group of adsorption holes; 406-fourth group of adsorption holes;

[0050] 50-needle pressing device; 501-needle pressing cylinder; 502-needle pressing cylinder connecting plate; 503-support plate; 504-connecting shaft; 505-needle pressing connecting plate; 506-spring needle pressing;

[0051] 60-lifting device; 601-servo motor; 602-screw rod; 603-lifting cylinder connecting plate; 604-guide rail connecting plate; 605-linear guide rail;

[0052] 70-UV lamp board; 701-substrate; 702-UV lamp beads; 703-shading plate; 704-shading foam. DETAILED DESCRIPTION

[0053] The present invention will be further described below in conjunction with the accompanying drawings and exemplary embodiments.

[0054] Reference Figure 2 , a solder strip handling and UV pre-curing mechanism, comprising a fixed bracket 10 and N handling and pre-curing units; N≥1; in this embodiment, N is 2.

[0055] A moving device 20 that moves in a horizontal direction is disposed on the fixed bracket 10 . The moving device 20 includes a linear motor 201 and a mounting plate 202 disposed at a driving end of the linear motor 201 . N transport pre-curing units are disposed on the mounting plate 202 .

[0056] Each transport and pre-curing unit includes a lifting device 60, an adsorption plate 401, a needle pressing device 50, a UV lamp board 70, and M vacuum generators 30; in this embodiment, the value of M is 4.

[0057] like Figure 4 As shown, the lifting device 60 includes a lifting assembly, a guide rail connecting plate 604, and a linear guide rail 605. The lifting assembly includes a servo motor 601, a screw rod 602, and a lifting cylinder connecting plate 603; the servo motor 601 is arranged on the mounting plate 202, and the driving end is connected to the lifting cylinder connecting plate 603 through the screw rod 602, the lifting cylinder connecting plate 603 is provided with a guide rail connecting plate 604, and the guide rail connecting plate 604 is provided with a linear guide rail 605;

[0058] The needle pressing device 50 includes a needle pressing drive assembly, a support plate 503, a needle pressing connecting plate 505 and multiple spring needle pressing needles 506. The needle pressing drive assembly includes a needle pressing cylinder 501 and a needle pressing cylinder connecting plate 502; the needle pressing cylinder 501 is arranged on a linear guide rail 605, and its driving end is connected to the needle pressing cylinder connecting plate 502, a support plate 503 is arranged on the needle pressing cylinder connecting plate 502, the needle pressing connecting plate 505 is arranged below the support plate 503, the support plate 503 and the needle pressing connecting plate 505 are connected by six connecting shafts 504, the top surface of the needle pressing connecting plate 505 is provided with an adsorption plate 401, and the bottom surface is provided with a UV lamp board 70; multiple spring needle pressing needles 506 are arranged on the bottom surface of the needle pressing connecting plate 505, and pass through the substrate 701 of the UV lamp, and are used to press the welding strip 02 onto the solar cell sheet 01 so that it is in close contact with the UV glue 03.

[0059] The pressing needle cylinder 501 is used to drive the pressing needle connecting plate 505 to move in the vertical direction; the servo motor 601 is used to drive the adsorption plate 401 to move in the vertical direction.

[0060] Reference Figure 3 The UV lamp board 70 includes a substrate 701 (copper) arranged on the bottom surface of the pressure pin connecting plate 505, a plurality of UV lamp beads 702 arranged on the substrate 701, and a shading component. The plurality of UV lamp beads 702 correspond to the positions of the UV glue 03 on the solar cell sheet 01. The shading component is used to shield the UV glue 03 that does not need to be cured, and includes a shading plate 703 and a plurality of shading foams 704; the shading plate 703 is located at the end of the substrate 701 close to the adjacent transport pre-curing unit to shield the UV glue 03 on the adjacent solar cell sheet 01; the plurality of shading foams 704 are divided into a plurality of rows, and a UV lamp bead 702 is arranged between adjacent shading foams 704 in each row of shading foams 704 to shield the UV lamp bead 702.

[0061] The bottom surface of the adsorption plate 401 is provided with M groups of adsorption holes arranged in sequence along the extension direction of the welding strip 02. Each group of adsorption holes is controlled by a vacuum generator 30. Each adsorption hole is connected to a suction cup 402. The adsorption end of each suction cup 402 passes through the pressure needle connecting plate 505 and the substrate 701 of the UV lamp board 70 in sequence for adsorbing the corresponding welding strip 02.

[0062] Each group of adsorption holes is arranged in a row-column matrix, and the row direction is perpendicular to the length direction of the solder strip 02 . The number of rows of each group of adsorption holes is greater than or equal to 3, that is, each solder strip 02 is adsorbed by at least three suction cups 402 .

[0063] Reference Figure 6 , Figure 8In this embodiment, M takes a value of 4, and the four groups of adsorption holes are respectively a first group of adsorption holes 403, a second group of adsorption holes 404, a third group of adsorption holes 405, and a fourth group of adsorption holes 406; the first row of the second group of adsorption holes 404, the first row of the third group of adsorption holes 405, the second row of the second group of adsorption holes 404, the second row and the third row of the third group of adsorption holes 405, and the fourth row of the second group of adsorption holes 404 are arranged in sequence, and the columns of the second group of adsorption holes 404 and the third group of adsorption holes 405 are staggered;

[0064] Reference Figure 5 , Figure 6 One adsorption plate 401 corresponds to three solar cell sheets 01 arranged in sequence, the first group of adsorption holes 403 and the second group of adsorption holes 404 are used to adsorb the long welding strips 021 on the first and second solar cell sheets 01 of the three solar cell sheets 01 arranged in sequence, the third group of adsorption holes 405 and the fourth group of adsorption holes 406 are used to adsorb the long welding strips 021 on the second and third solar cell sheets 01 of the three solar cell sheets 01 arranged in sequence; multiple shading foams 704 are used to block the UV glue coming out of the preset position of the short welding strips 022 on the solar cell sheet 01.

[0065] Reference Figure 7 , Figure 8 The first group of adsorption holes 403 and the second group of adsorption holes 404 are used to simultaneously adsorb the short welding strips 022 on the last solar cell piece 01 in the previous busbarless XBC battery string and the first solar cell piece 01 in the next busbarless XBC battery string.

[0066] A method for conveying and pre-curing solder strips using UV light, using the above-mentioned mechanism for conveying and pre-curing solder strips using UV light, comprises the following steps:

[0067] Step 1: Cut the welding ribbon 02 to be transported according to a preset length (such as L1 or L2) and place it in the loading area;

[0068] Step 2: Transporting the welding ribbon 02;

[0069] Step 2.1, if it is necessary to adsorb the long welding strips 021 on the solar cell sheets 01 arranged in sequence in the same busbarless XBC battery string, start the vacuum generators 30 corresponding to the four groups of adsorption holes;

[0070] If it is necessary to adsorb the short welding strip 022 on the first solar cell sheet 01 or the last solar cell sheet 01 of the busbarless XBC battery string, the vacuum generator 30 corresponding to one group of adsorption holes is started;

[0071] If it is necessary to simultaneously adsorb the short welding strip 022 on the last solar cell sheet 01 of the previous busbar-free XBC battery string and the first solar cell sheet 01 of the next busbar-free XBC battery string, the vacuum generators 30 corresponding to two groups of adsorption holes (the first group of adsorption holes 403 and the third group of adsorption holes 405) are activated;

[0072] Step 2.2, start the lifting device 60, the servo motor 601 drives the screw rod 602 to drive the adsorption plate 401 to descend, and the linear guide rail 605 ensures that the adsorption plate 401 moves downward smoothly;

[0073] Step 2.3, each suction cup 402 on the suction plate 401 absorbs the corresponding solder strip 02 through the suction hole; then the lifting device 60 drives the suction plate 401 to rise to the moving position,

[0074] Step 2.4, start the moving device 20, and drive the installation plate 202 to move horizontally by the linear motor 201, so as to move the welding ribbon 02 to the top of the solar cell sheet 01;

[0075] Step 2.5, the lifting device 60 drives the adsorption plate 401 to descend, and each welding ribbon 02 is placed at a preset position on the solar cell sheet 01;

[0076] Step 2.6, start the needle pressing device 50, and the needle pressing cylinder 501 drives each spring pressing needle 506 to press the corresponding soldering ribbon 02 onto the UV glue 03 of the solar cell sheet 01; the needle pressing device 50 provides uniform pressure through multiple spring pressing needles 506 to ensure good contact between the soldering ribbon 02, the UV glue 03 and the solar cell sheet 01; after the pressing is completed, the soldering ribbon 02 has been stably maintained at the designed position of the solar cell sheet 01 and the UV glue 03;

[0077] Step 3, start the UV lamp beads 702 on the UV lamp board 70 to perform local pre-curing on the UV glue 03 between the soldering ribbon 02 and the solar cell sheet 01; and shield the area that does not need to be cured by the shading plate 703 and a plurality of shading foams 704 to ensure that the UV light only acts on the target position;

[0078] Step 4, close the vacuum generator 30 opened in step 2 to release the adsorption state between the adsorption plate 401 and all the welding strips 02, and then drive the adsorption plate 401 to rise by the lifting device 60 to return to the initial height;

[0079] Step 5: The mobile device 20 drives the adsorption plate 401 back to the loading area, and steps 2 to 4 start a new round of operations until the conveying and UV pre-curing of the solder ribbons 02 of all solar cell sheets 01 are completed.

Claims

1. A solder strip handling and UV pre-curing mechanism, characterized in that: It comprises a fixed support (10) and N transport pre-curing units; N≥1; The fixed support (10) is provided with a moving device (20) that moves in a horizontal direction, and the N transporting pre-curing units are provided on the moving device (20); Each of the transport pre-curing units comprises a lifting device (60), a pressure needle device (50) and M vacuum generators (30), M≥2; the lifting device (60) is arranged on the moving device (20); the pressure needle device (50) comprises a pressure needle driving assembly arranged at the driving end of the lifting device (60), a support plate (503) arranged at the driving end of the pressure needle driving assembly, a pressure needle connecting plate (505) arranged below the support plate (503), and a plurality of spring pressure needles (506) arranged on the bottom surface of the pressure needle connecting plate (505); the support plate (503) and the pressure needle connecting plate (505) are connected via a plurality of connecting shafts (504); the top surface of the pressure needle connecting plate (505) is provided with an adsorption plate (401), and the bottom surface is provided with a UV lamp board (70); the lifting device (60) is used for driving the adsorption plate (401) to move in a vertical direction; The plurality of spring pressure pins (506) pass through the UV lamp board (70) and are used to press the welding strip (02) onto the solar cell sheet (01) so that the welding strip is in close contact with the UV glue (03); The bottom surface of the adsorption plate (401) is provided with M groups of adsorption holes; each group of adsorption holes is arranged in a row-column matrix, and the row direction is perpendicular to the length direction of the welding strip (02), and the number of rows of each group of adsorption holes is greater than or equal to 3; Each group of adsorption holes is controlled by a vacuum generator (30), each adsorption hole is connected to a suction cup (402), and the adsorption end of each suction cup (402) passes through the pressure needle connecting plate (505) and the UV lamp board (70) in sequence to adsorb the corresponding welding strip (02); The UV lamp board (70) comprises a plurality of UV lamp beads (702), and the plurality of UV lamp beads (702) are used to correspond to the positions of the UV glue (03) on the solar cell sheet (01) to cure the UV glue (03).

2. A solder strip transport and UV pre-curing mechanism according to claim 1, characterized in that: The M groups of adsorption holes are arranged in sequence along the length direction of the welding strip (02); The M groups of adsorption holes are used to adsorb the same long welding strip (021) on two adjacent solar cell sheets (01) or the short welding strip (022) on the same solar cell sheet (01).

3. The solder strip transport and UV pre-curing mechanism according to claim 2, characterized in that: The value of M is 4; The four groups of adsorption holes are respectively a first group of adsorption holes (403), a second group of adsorption holes (404), a third group of adsorption holes (405), and a fourth group of adsorption holes (406); The first group of adsorption holes (403) and the second group of adsorption holes (404) are used to adsorb the long welding strips (021) on the first and second solar cell sheets (01) of three solar cell sheets (01) arranged in sequence, and the third group of adsorption holes (405) and the fourth group of adsorption holes (406) are used to adsorb the long welding strips (021) on the second and third solar cell sheets (01) of three solar cell sheets (01) arranged in sequence.

4. The solder strip transport and UV pre-curing mechanism according to claim 3, characterized in that: The first group of adsorption holes (403) and the second group of adsorption holes (404) are also used to simultaneously adsorb the short welding strip (022) on the last solar cell sheet (01) in the previous busbar-free XBC battery string and the short welding strip (022) on the first solar cell sheet (01) in the next busbar-free XBC battery string.

5. A solder strip handling and UV pre-curing mechanism according to any one of claims 1 to 4, characterized in that: The UV lamp board (70) comprises a substrate (701) arranged on the bottom surface of the pressure pin connecting plate (505), the plurality of UV lamp beads (702) arranged on the bottom surface of the substrate (701), and a light shielding component; the light shielding component comprises a light shielding plate (703) and a plurality of light shielding foams (704); the light shielding plate (703) is located at the end of the substrate (701) close to the adjacent transport pre-curing unit to shield the UV glue (03) on the adjacent solar cell sheets (01); the plurality of light shielding foams (704) are divided into a plurality of rows, and one UV lamp bead (702) is arranged between adjacent light shielding foams (704) in each row of light shielding foams (704) to shield the UV lamp bead (702); The plurality of spring pressure pins (506) pass through the substrate (701) and are arranged in a row-column matrix; the column direction of the plurality of spring pressure pins (506) is parallel to the extension direction of the welding strip (02).

6. The solder strip transport and UV pre-curing mechanism according to claim 5, characterized in that: The moving device (20) comprises a linear motor (201) and a mounting plate (202) arranged at a driving end of the linear motor (201); the vacuum generator (30) is arranged on the mounting plate (202); The lifting device (60) comprises a lifting assembly arranged on a mounting plate (202), a guide rail connecting plate (604) arranged at a driving end of the lifting assembly, and a linear guide rail (605) arranged on the guide rail connecting plate (604); The lifting assembly comprises a servo motor (601), a screw rod (602), and a lifting cylinder connecting plate (603); the servo motor (601) is arranged on a mounting plate (202), and a driving end is connected to the lifting cylinder connecting plate (603) via a screw rod (602); and the guide rail connecting plate (604) is arranged on the lifting cylinder connecting plate (603); The needle pressing drive assembly comprises a needle pressing cylinder (501) and a needle pressing cylinder connecting plate (502); the needle pressing cylinder (501) is arranged on a linear guide rail (605), and its driving end is connected to the needle pressing cylinder connecting plate (502), and the support plate (503) is arranged on the needle pressing cylinder connecting plate (502).

7. A method for handling and pre-curing a solder strip, using the mechanism for handling and pre-curing a solder strip according to claim 1, comprising the following steps: Step 1, cutting the welding ribbon (02) to be transported according to a preset length and placing it in the loading area; Step 2, starting the corresponding vacuum generator (30) according to the length and position of the solder strip (02), then using the lifting device (60) to lower the adsorption plate (401) to the loading area of ​​the solder strip (02), and using each suction cup (402) on the adsorption plate (401) to adsorb the corresponding solder strip (02) through the adsorption hole; then using the lifting device (60) to drive the adsorption plate (401) to rise to the moving position, and then using the moving device (20) to horizontally move the adsorption plate (401) to move the solder strip (02) to the top of the solar cell sheet (01); then using the lifting device (60) to drive the adsorption plate (401) to descend, and placing each solder strip (02) at a preset position on the solar cell sheet (01); then starting the pressing needle driving component of the pressing needle device (50), and the pressing needle driving component drives each spring pressing needle (506) to press the corresponding solder strip (02) onto the UV glue (03) of the solar cell sheet (01); Step 3, start the UV lamp beads (702) on the UV lamp board (70) to perform local pre-curing on the UV glue (03) between the welding strip (02) and the solar cell sheet (01); Step 4, closing the vacuum generator (30) opened in step 2 to release the adsorption state between the adsorption plate (401) and all the welding strips (02), and then the lifting device (60) drives the adsorption plate (401) to rise and return to the initial height; Step 5: The mobile device (20) drives the adsorption plate (401) back to the loading area, and a new round of operations is started according to steps 2 to 4 until the welding ribbons (02) of all solar cell sheets (01) are transported and UV pre-cured.

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