Battery piece stringer and battery piece production method

Abstract

The embodiment of the application provides a battery piece string welding machine and a battery piece production method. The battery piece string welding machine comprises: a feeding device configured to transmit material to a preset position; a glue printing device configured to glue the surface of the transmitted material to form a glue printing position; a first transfer mechanism located between the feeding device and the glue printing device; the first transfer mechanism is configured to transmit the material located at the preset position to the glue printing device, or is further configured to transmit the single-sided glue printing material returned by the glue printing device to the glue printing device again; a welding strip processing device located on one side of the glue printing device, the welding strip processing device is configured to cover the material surface after glue printing with a welding strip, and the welding strip corresponds to the glue printing position; a curing device located on one side of the welding strip processing device, the curing device is configured to pre-fix the welding strip; and a welding device located on one side of the curing device, the welding device is configured to weld the pre-fixed welding strip with the material. The quality of the photovoltaic panel processed by the battery piece string welding machine is better, and the qualified rate is higher.

Description

[0001] This application claims priority to Chinese Patent Application No. 202421340901.0, filed on June 12, 2024, entitled “Battery Cell Production Equipment and Battery Cell”, the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202421341615.6, filed on June 12, 2024, entitled “Battery Cell String Welding Machine”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of solar panel technology, and more specifically, to a cell string welding machine and a cell production method. Background Technology

[0004] In related technologies, photovoltaic circuit boards are generally manufactured by soldering solder strips onto silicon wafers. To improve the stability of the solder joints, adhesive is used to bond the solder strips. However, the photovoltaic panels produced by current production lines are of poor quality and have a low pass rate.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this application is to provide a new technology solution for a battery cell string welding machine.

[0007] In a first aspect, embodiments of this application provide a cell stringing machine. The cell stringing machine includes:

[0008] The feeding device is used to transport materials to a preset position;

[0009] A glue dispensing device is used to apply glue to the surface of materials conveyed to it to form glue dispensing positions;

[0010] The first transfer mechanism is located between the feeding device and the printing device; the first transfer mechanism is used to transfer the material located at the preset position to the printing device, or it is also used to transfer the single-sided dispensing material returned by the printing device back to the printing device.

[0011] A solder ribbon processing device is located on one side of the printing device. The solder ribbon processing device is used to cover the surface of the material after dispensing with solder ribbon, and the solder ribbon corresponds to the dispensing position.

[0012] A curing device is located on one side of the welding strip processing device, and the curing device is used to pre-fix the welding strip;

[0013] A welding device is located on one side of the curing device, and the welding device is used to weld the pre-fixed welding strip to the material.

[0014] Optionally, the feeding device includes a first conveying mechanism, a material gripping mechanism, a first flipping mechanism, and a second conveying mechanism;

[0015] The first conveying mechanism is located on one side of the material gripping mechanism, and the second conveying mechanism is located below the first tilting mechanism and the material gripping mechanism;

[0016] The material gripping mechanism is used to transfer the material from the first conveying mechanism to the second conveying mechanism;

[0017] In this process, the materials conveyed to the second conveying mechanism are grouped into two adjacent groups, and the first flipping mechanism is used to flip one material in each group and transfer it to the second conveying mechanism.

[0018] Optionally, the printing apparatus includes a printing component and a second transfer mechanism, wherein the printing component is located between the first transfer mechanism and the second transfer mechanism;

[0019] The printing apparatus further includes a first transfer mechanism, which is located on the side of the second transfer mechanism away from the printing assembly. The second transfer mechanism is used to transfer the material of the printing assembly to the first transfer mechanism.

[0020] Optionally, the printing device further includes a second transmission mechanism and a third transmission mechanism. The third transmission mechanism is located close to the first transfer mechanism, and the first transfer mechanism is used to transfer the single-sided dispensing material returned by the third transmission mechanism back to the printing assembly.

[0021] A rotating mechanism is provided between the first and second transmission mechanisms. This rotating mechanism is used to transfer the material dispensed from one side of the first transmission mechanism to the second transmission mechanism, and to rotate it by a preset angle.

[0022] A second flipping mechanism is provided between the second transmission mechanism and the third transmission mechanism. The second flipping mechanism is used to flip the material of the second transmission mechanism by 180° and transfer it to the third transmission mechanism.

[0023] Optionally, the first transmission mechanism, the second transmission mechanism, and the third transmission mechanism are all equipped with adhesive-avoiding fixtures.

[0024] Optionally, the first transfer mechanism and / or the second transfer mechanism is a four-rotary gripper device.

[0025] Optionally, the welding strip processing device includes a first transport mechanism, a conveying robot, and a welding strip laying and conveying platform;

[0026] A conveying mechanism is provided between the first transport mechanism and the printing device, and the conveying mechanism is used to convey the material output by the printing device to the first transport mechanism.

[0027] The conveying robot is located on one side of the first transport mechanism and is used to transfer the materials of the first transport mechanism to the welding strip laying and conveying platform.

[0028] Optionally, the solder strip processing apparatus further includes a flux coating mechanism, a solder strip stretching assembly, and a solder strip pretreatment assembly;

[0029] The flux coating mechanism and the ribbon laying and conveying platform are located between the ribbon pretreatment component and the ribbon stretching component, and the flux coating mechanism is located between the ribbon laying and conveying platform and the ribbon pretreatment component.

[0030] The welding strip stretching assembly and the welding strip pretreatment assembly cooperate to make the welding strip adhere tightly to the surface of the material on the welding strip laying and conveying platform, and the flux coating mechanism can coat the welding strip with flux.

[0031] Optionally, the welding strip processing device further includes a wire mesh pressing mechanism, a second transport mechanism, and a wire mesh return mechanism;

[0032] The pressure mesh can press the welding strip firmly against the surface of the material;

[0033] The pressure mesh return mechanism is located on one side of the curing device and is used to return the pressure mesh on the cured material to the second transport mechanism;

[0034] The second transport mechanism is located on one side of the conveying robot, which is used to transfer the pressing mesh to the welding strip laying and transport platform.

[0035] Optionally, the curing device includes a third transport mechanism, and a curing component is disposed above and / or below the third transport mechanism;

[0036] The third transport mechanism is connected to the welding strip laying and conveying platform to facilitate the transfer of materials to the third transport mechanism for curing.

[0037] Optionally, the welding apparatus includes a welding transport mechanism and a welding mechanism, wherein the welding transport mechanism is used to transport the material from the curing apparatus to the welding mechanism;

[0038] The welding mechanism is used to weld the welding strip to the material.

[0039] Secondly, embodiments of this application also provide a method for producing solar cells. The method is applied to the solar cell stringing machine described in the first aspect. The method includes the following steps:

[0040] Provide materials;

[0041] A dispensing site is formed by dispensing adhesive onto a first surface and / or a second surface of the material; the first surface and the second surface are disposed opposite to each other.

[0042] A welding strip is laid on the material, and the welding strip corresponds to the dispensing position;

[0043] The adhesive application site is cured to pre-fix the solder strip;

[0044] The pre-fixed solder strips and the material are welded together to form a battery cell.

[0045] According to the embodiments of this application, the photovoltaic panels processed by the cell string welding machine of this application have better quality and a higher pass rate.

[0046] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0047] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0048] Figure 1 The diagram shown is an overall structural block diagram of the battery cell string welding machine provided in an embodiment of this application.

[0049] Figure 2 The image shown is a partial structural block of the battery cell string welding machine provided in an embodiment of this application. Figure 1 .

[0050] Figure 3 The image shown is a partial structural block of the battery cell string welding machine provided in an embodiment of this application. Figure 2 .

[0051] Figure 4 The diagram shown is a structural diagram of the feeding device provided in an embodiment of this application.

[0052] Figure 5 The diagram shown is a structural diagram of the first flipping mechanism provided in an embodiment of this application.

[0053] Figure 6 The diagram shown is a structural diagram of the first transfer mechanism provided in an embodiment of this application.

[0054] Figure 7 and Figure 8 The diagram shown is a structural diagram of the welding handling mechanism provided in an embodiment of this application.

[0055] Figure 9 The diagram shown is a structural diagram of the welding mechanism provided in an embodiment of this application.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Feeding device; 10. First conveying mechanism; 11. Material gripping mechanism; 12. First tilting mechanism; 13. Second conveying mechanism;

[0058] A. Feeding position; B. Discharging position; 101. Material box; 1011. Pallet; 1012. Supporting component; 102. First conveying component; 103. Pushing mechanism; 104. Air blowing mechanism;

[0059] 121. First flipping unit; 1211. First driving component; 1212. Flipping assembly; 1213. Second driving component; 1214. Flipping body; 122. Adjustment mechanism;

[0060] 2. First transfer mechanism; 20. First clamp; 21. First axis;

[0061] 3. Printing device; 31. Printing assembly; 32. Second transfer mechanism; 33. First transmission mechanism; 34. Second transmission mechanism; 35. Third transmission mechanism;

[0062] 4. Welding strip processing device; 40. First transport mechanism; 41. Conveying mechanism; 42. Conveying robot; 43. Welding strip laying and conveying platform; 44. Second transport mechanism; 45. Mesh pressing and return mechanism;

[0063] 5. Curing device; 50. Third transportation mechanism;

[0064] 6. Welding equipment; 61. Welding handling mechanism; 611. Installation mechanism; 612. Parts picking mechanism; 613. Clamping mechanism; 6131. ​​Clamping component;

[0065] 62. Welding mechanism; 621. Heating device; 622. Fixing plate; 623. Mounting frame; 624. Heating body; 625. Welding platform; Detailed Implementation

[0066] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0067] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0068] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0069] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0070] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0071] The first aspect of this application provides a battery cell stringing machine. (Refer to...) Figure 1 The battery cell string welding machine includes: a feeding device 1, a first transfer mechanism 2, an adhesive printing device 3, a welding strip processing device 4, a curing device 5, and a welding device 6.

[0072] The feeding device 1 is used to transport materials to a preset position;

[0073] The printing device 3 is used to apply adhesive to the surface of the material to which it is transferred, forming a dispensing position.

[0074] The first transfer mechanism 2 is located between the feeding device 1 and the printing device 3;

[0075] The first transfer mechanism 2 is used to transfer the material located at the preset position to the printing device 3, or it is also used to transfer the single-sided dispensing material returned by the printing device 3 back to the printing device 3.

[0076] The solder ribbon processing device 4 is located on one side of the printing device 3. The solder ribbon processing device 4 is used to cover the surface of the material after dispensing with solder ribbon. The solder ribbon corresponds to the dispensing position.

[0077] The curing device 5 is located on one side of the welding strip processing device 4, and the curing device 5 is used to pre-fix the welding strip;

[0078] Welding device 6 is located on one side of curing device 5. Welding device 6 is used to weld the pre-fixed welding strip to the material.

[0079] In this embodiment, the solar cell stringer achieves an automated series welding process for solar cells through the coordinated operation of the feeding device 1, the first transfer mechanism 2, the adhesive printing device 3, the solder ribbon processing device 4, the curing device 5, and the welding device 6. The solar cell stringer is an automated production equipment mainly used in the production process of solar cells to connect solar cells in series using solder ribbons to form a battery string.

[0080] Specifically, the cell string welding process includes a feeding device 1, which is responsible for accurately transferring materials to a preset position for subsequent processing. For example, the material can be a bare silicon wafer of a cell.

[0081] In the cell manufacturing process, two silicon wafers are often connected together by solder ribbons. Therefore, two silicon wafers can be regarded as a group of silicon wafers. The silicon wafers are fed into the group by the feeding device 1.

[0082] The cell stringing machine also includes a first transfer mechanism 2, which is located between the feeding device 1 and the printing device 3.

[0083] The first transfer mechanism 2 is responsible for transferring the material to the dispensing device for further processing. This material can be located at a preset position on the feeding device 1, where the material at the preset position on the feeding device 1 is undispensed on both sides. Alternatively, the material can be a single-sided dispensed material returned by the printing device 3.

[0084] Specifically, the first transfer mechanism 2 is used to transfer the material from the feeding device 1 to the printing device 3, and the printing device 3 applies adhesive to one of the surfaces of the material.

[0085] According to actual needs, single-sided dispensing of materials can realize the production and processing of battery cells. After the dispensing device 3 dispenses adhesive on one surface of the material, the single-sided dispensing material is directly transferred to the next process.

[0086] If, according to actual needs, double-sided dispensing of the material is required, after the dispensing device 3 dispenses the adhesive on one surface of the material, the material with single-sided dispensing needs to be returned so that the first transfer mechanism 2 can transfer the material with single-sided dispensing returned by the dispensing device 3 back to the dispensing device 3, and the dispensing device 3 dispenses adhesive on the other surface of the material. The "one surface" and "the other surface" mentioned above can be two surfaces arranged opposite each other.

[0087] The cell stringer also includes a glue dispensing device 3, which dispenses glue onto the surface of the material being transferred to it, forming glue dispensing positions. These glue dispensing positions form the basis for subsequent ribbon covering and welding.

[0088] The dispensing method of the printing device 3 can be various, such as dispensing with a dispensing head, spray dispensing, or screen printing dispensing. Taking screen printing dispensing as an example, a screen is placed on the battery cell, and a squeegee dips in adhesive to print the adhesive onto the material. Processing the battery cell by dispensing adhesive before welding allows for better control of the amount of adhesive dispensed.

[0089] The dispensing device can perform single-sided dispensing of the battery cells, or it can perform double-sided dispensing of the battery cells. When performing double-sided dispensing of the battery cells, it is necessary to first dispense the material on one surface, and then, through a flipping mechanism, dispense the material on the other surface.

[0090] Optionally, depending on the actual application of the solar cells, the dispensing device can process a group of solar cells (two solar cells) simultaneously. When processing a group of solar cells simultaneously, the first surface (i.e., the front side) of one solar cell and the second surface (the back side) of the other solar cell can be processed at the same time.

[0091] The cell string bonding machine also includes a solder ribbon processing device 4, which is located on one side of the adhesive printing device 3. The solder ribbon processing device 4 covers the surface of the material after adhesive dispensing with solder ribbon, and the solder ribbon corresponds to the dispensing position to ensure that the solder ribbon can firmly adhere to the material.

[0092] Specifically, the welding ribbon processing device 4 is used to lay welding ribbon on the material after dispensing. That is, it first forms dispensing positions on the material, and then lays welding ribbon on the material in combination with the arrangement of the dispensing positions.

[0093] The welding strip is attached to the surface of the adhesive, meaning the height of the welding strip is higher than the height of the adhesive. In this way, the welding strip becomes a protective structure that isolates the adhesive part, preventing the adhesive part from coming into contact with other components during material transportation.

[0094] Optionally, the welding strip processing device 4 can simultaneously apply welding strips to one or more groups of solar cells.

[0095] The cell stringing machine also includes a curing device 5, which is located on one side of the solder ribbon processing device 4. The curing device 5 pre-fixes the solder ribbon covering the surface of the material and enhances the adhesion between the solder ribbon and the dispensing site by heating or other means.

[0096] Specifically, the curing device 5 cures the adhesive on which the welding ribbon is laid, which on the one hand fixes the adhesive and strengthens the connection with the material, and on the other hand fixes the adhesive to improve the reliability of the connection between the welding ribbon and the adhesive.

[0097] Alternatively, the curing device 5 can use heat curing, UV curing, or other curing technologies. Specific curing methods and parameters (such as temperature, time, light intensity, etc.) may be adjusted depending on the properties of the adhesive and solder ribbon used.

[0098] The cell stringer also includes a welding device 6, which is located on one side of the curing device 5. Welding improves the reliability of the electrical connection by bonding the solder strips and the cells together. Specifically, in this embodiment, adhesive application sites are first formed on the material; then, based on the arrangement of the adhesive application sites, solder strips are laid on the material; next, the adhesive is cured to firmly bond the solder strips and adhesive together; finally, the solder strips and the material are welded together to form the cell.

[0099] Alternatively, the welding device 6 typically employs pressure welding, laser welding, ultrasonic welding, or other welding techniques. The welding parameters and conditions (such as welding temperature, welding time, welding pressure, etc.) will ensure a strong connection between the welding strip and the solar cell.

[0100] Therefore, in this embodiment, the material is first treated with adhesive, and then the welding ribbon is covered on the material, with the welding ribbon corresponding to the adhesive application site. This allows the welding ribbon to adhere to the material surface after the adhesive cures. Then, the welding device 6 welds the welding ribbon to the material. The photovoltaic panels processed by the cell string welding machine of this application have better quality and a higher pass rate. In other words, this embodiment adjusts the method of fixing the welding ribbon to the material, that is, it adopts the method of fixing the welding ribbon by first applying adhesive and then welding the welding ribbon. After the adhesive cures, the bonding force between the welding ribbon and the adhesive is stronger during the material turnover process, and the welding ribbon is not easy to fall off, thus improving the pass rate of photovoltaic panel processing. In addition, by forming the adhesive application site on the material by first applying adhesive, the thickness and dosage of the adhesive can be better controlled, so as to better control the overall thickness of the cell.

[0101] Optionally, the cell stringer may also include a waste collection mechanism for collecting waste.

[0102] Optionally, the cell stringer may also include a detection device, which includes EL detection, or electroluminescence detection, a technique that uses the principle of electroluminescence to detect internal or surface defects in materials. That is, it can detect whether the electrical connection between the material and the welding strip is stable.

[0103] This application embodiment can also provide a battery cell stringing system, which includes two sets of battery cell stringing machines, for example, the two sets of battery cell stringing machines can be arranged in parallel.

[0104] <Feeding device 1>

[0105] In one embodiment, refer to Figure 4The feeding device 1 includes a first conveying mechanism 10, a material gripping mechanism 11, a first flipping mechanism 12, and a second conveying mechanism 13;

[0106] The first conveying mechanism 10 is located on one side of the material gripping mechanism 11, and the second conveying mechanism 13 is located below the first flipping mechanism 12 and the material gripping mechanism 11;

[0107] The material gripping mechanism 11 is used to transfer the material from the first conveying mechanism 10 to the second conveying mechanism 13;

[0108] In this process, the materials conveyed to the second conveying mechanism 13 are grouped into two adjacent groups, and the first flipping mechanism 12 is used to flip one material in each group and transfer it to the second conveying mechanism 13.

[0109] In this embodiment of the application, the feeding device 1 includes a first conveying mechanism 10, which is used to convey materials to a position that is convenient for the material gripping mechanism 11 to grip.

[0110] The feeding device 1 also includes a material gripping mechanism 11, which is located on one side of the first conveying mechanism 10 so that the material gripping mechanism 11 can grip materials from the discharge position B of the first conveying mechanism 10.

[0111] Since the second conveying mechanism 13 is located below the material gripping mechanism 11, the material gripping mechanism 11 transfers the material it grips to the second conveying mechanism 13.

[0112] The feeding device 1 also includes a second conveying mechanism 13, which is used to transport materials to a preset position of the feeding device 1 so that the first transfer mechanism 2 can transfer the materials located at the preset position to the printing device 3.

[0113] For example, if it is not necessary to flip the material 180°, the material gripping mechanism 11 transfers the gripped material to the second conveying mechanism 13, and the second conveying mechanism 13 directly transfers the material to the preset position.

[0114] When it is necessary to flip the material 180°, the material handling device transfers the material it grabs to the second conveying mechanism 13. The first flipping mechanism 12, located above the second conveying mechanism 13, grabs the material to be flipped and flips it. Then, the flipped material is transferred to the second conveying mechanism 13 again, and the second conveying mechanism 13 transports the flipped material to the preset position.

[0115] For example, in the cell manufacturing process, two materials are often arranged opposite each other and connected together by solder ribbon. In this case, on the second conveying mechanism 13, each pair of adjacent materials is considered a group. The first flipping mechanism 12 acts on one material in each group, flipping it 180° and placing it back into the second conveying mechanism 13, so that when the group of silicon wafers is subsequently glued, the two silicon wafers are arranged opposite each other.

[0116] For example, the second conveying mechanism 13 transports multiple materials to a preset position, with each pair of materials forming a group, and the two materials arranged in opposite directions.

[0117] In this embodiment, the feeding device 1 can automatically grab, transfer and flip materials, thereby improving production efficiency.

[0118] First conveying mechanism 10

[0119] In one specific embodiment, the structure of the first conveying mechanism 10 is defined.

[0120] Reference Figure 4 The first conveying mechanism 10 has an inlet position A and an outlet position B. The first conveying mechanism 10 is used to convey the material box 101 located at the inlet position A. The material box 101 includes a tray 1011 and a supporting component 1012. The tray 1011 is movably disposed on the supporting component 1012. The tray 1011 is used to support the stacked materials. The supporting component 1012 is provided with a second clearance hole.

[0121] The first conveying mechanism 10 includes a first conveying component 102, which has a first clearance hole; for example, the first conveying component 102 can be a conveyor belt or the like.

[0122] The first conveying mechanism 10 also includes a pushing mechanism 103, which is located below the first conveying component 102 and corresponds to the discharge position B. The pushing mechanism 103 passes through the first and second clearance holes to push the support plate 1011, so that the uppermost layer of material on the support plate 1011 continuously moves to the target position, wherein the target position is related to the pushing force of the pushing mechanism 103 and the thickness of the material. Generally, the pushing distance of the pushing mechanism 103 is the thickness of one material.

[0123] The first conveying mechanism 10 also includes an air blowing mechanism 104, which is disposed in the first conveying mechanism 10 and located at the discharge position B. The air blowing mechanism 104 is used to blow the material located at the target position to the gripping position. The gripping position is higher than the target position in the vertical direction so that the material gripping mechanism 11 can grip the material.

[0124] Therefore, in the structure of the first conveying mechanism 10, under the coordinated action of the pushing mechanism 103 and the blowing mechanism 104, the pushing mechanism 103 pushes up a piece of the top layer material, and then the blowing mechanism 104 blows the top layer material to the gripping position; while the blowing mechanism 104 is blowing the top layer material to the gripping position, the pushing mechanism 103 can push up another piece of the top layer material. The pushing process and the blowing process are continuous processes, so that the top layer material on the pallet 1011 continuously appears at the target position.

[0125] After the top layer of material is pushed to the target position, the air blowing mechanism 104 is activated. The air blowing mechanism 104 blows the top layer of material at the target position up by blowing air, and moves it further to the gripping position for subsequent gripping or processing operations.

[0126] Therefore, in this embodiment, through the coordinated operation of the pushing mechanism 103 and the blowing mechanism 104, the first conveying mechanism 10 can efficiently realize the automated feeding process of materials, while also avoiding damage to the materials during the gripping process.

[0127] It should be noted that the structure of the air blowing mechanism 104 mentioned above can be an air blowing knife or other types of structures, as long as it can blow the pushed material to the gripping position.

[0128] The aforementioned push mechanism 103 can be a structure similar to a stepper motor combined with a lead screw, or the push mechanism 103 can be other types of structures, as long as it can push the uppermost material in the material box 101 to the target position.

[0129] Optionally, the first conveying mechanism 10 may further include a limiting mechanism located below the first conveying component 102 and retractably disposed on the front and / or rear side of the blowing mechanism 104, wherein the front side is in front of the conveying direction of the first conveying mechanism 10 and the rear side is behind the conveying direction of the first conveying mechanism 10.

[0130] Material gripping mechanism 11

[0131] In one specific embodiment, the structure of the material gripping mechanism 11 is described.

[0132] For example, the material gripping mechanism 11 may include a driving component and a material gripping component, wherein the driving component includes, but is not limited to, a cylinder or a motor. The material gripping component includes, but is not limited to, a gripper or a suction cup.

[0133] First flipping mechanism 12

[0134] In one specific embodiment, the structure of the first flipping mechanism 12 is described.

[0135] Reference Figure 4 and Figure 5 The first flipping mechanism 12 includes a first flipping unit 121, which includes a first driving component 1211 and a flipping assembly 1212. The first driving component 1211 drives the flipping assembly 1212 to move in the vertical direction. The first driving component 1211 includes, but is not limited to, a motor, a cylinder, or a hydraulic cylinder.

[0136] The flipping assembly 1212 includes a second driving component 1213 and a flipping body 1214. The flipping body 1214 includes a first gripping unit for gripping the material to be flipped. The second driving component 1213 drives the flipping body 1214 to rotate around a first horizontal direction to flip the material. The first driving component 1213 includes, but is not limited to, a motor, a cylinder, or a hydraulic cylinder. The first gripping unit includes, but is not limited to, a gripper or a suction cup.

[0137] The first flipping mechanism 12 also includes an adjustment mechanism 122, which is located beside the first flipping unit 121. The adjustment mechanism 122 is used to grab the material that is flipped on the first grabbing unit and place the grabbed material on the second conveying mechanism 13.

[0138] It should be noted that the structure of the adjusting mechanism 122 is not limited in this embodiment, as long as it can enable the material to be placed on the second conveying mechanism 13. The structure of the flipping body 1214 is not limited in detail in this embodiment, as long as it can be flipped under the drive of the second driving component 1213.

[0139] In an optional embodiment, a correction component is also provided on one side of the feeding device 1. The correction component can drive the material to move along the path to adjust the placement position and direction of the material.

[0140] It should be noted that the battery string welding machine can also include more correction components. For example, in the process of material transfer, when it is necessary to adjust the placement position and orientation of the materials, correction components can be set at the corresponding positions. For example, when describing the structure of the printing device 3 below, a correction component can be set next to the third conveying mechanism of the printing device 3.

[0141] <Printing Device 3>

[0142] In one embodiment, refer to Figure 1 and Figure 2 The printing device 3 includes a printing component 31 and a second transfer mechanism 32, wherein the printing component 31 is located between the first transfer mechanism 2 and the second transfer mechanism 32.

[0143] The printing device 3 further includes a first transfer mechanism 33, which is located on the side of the second transfer mechanism 32 away from the printing assembly 31. The second transfer mechanism 32 is used to transfer the material of the printing assembly 31 to the first transfer mechanism 33.

[0144] In this embodiment, the printing device 3 includes a printing component 31, which is the core part of the printing device 3 and is responsible for applying glue or printing on the material. For example, the printing component 31 may include printing equipment and a material carrying platform.

[0145] The printing assembly 31 is located between the first transfer mechanism 2 and the second transfer mechanism 32, meaning that the material will first pass through the first transfer mechanism 2 and then be sent to the printing assembly 31 for printing. The first transfer mechanism 2 transfers materials with single-sided printing and materials without double-sided printing to the material carrying platform, where the printing equipment processes the printing.

[0146] The printing apparatus 3 also includes a second transfer mechanism 32, the main function of which is to transfer the material processed by the printing assembly 31 to another location. In this embodiment, the second transfer mechanism 32 is responsible for transferring the printed material to the first transfer mechanism 33.

[0147] For example, in the case where it is necessary to apply adhesive to both sides of the material to achieve the production and processing of battery cells, after applying adhesive to both sides of the material, the material with adhesive applied to both sides is transferred to the first transfer mechanism 33 by the second transfer mechanism 32, and then transferred to the solder strip processing device 4 by the first transfer mechanism 33 to arrange the solder strip on both sides of the material.

[0148] Alternatively, in cases where double-sided adhesive application is required for battery cell production, after adhesive is applied to one surface of the material, the material with single-sided adhesive application is transferred to the first transfer mechanism 33 via the second transfer mechanism 32, and then transferred to the return mechanism of the printing device 3 (the second transfer mechanism 34 and the third transfer mechanism 35 mentioned below) via the first transfer mechanism 33, so as to apply adhesive to the other surface of the material.

[0149] The structure of the second transfer mechanism 32 is similar to that of the first transfer mechanism 2 described below. The second transfer mechanism 32 can also be a four-rotary gripper device.

[0150] The printing apparatus 3 also includes a first transfer mechanism 33, which is located on the side of the second transfer mechanism 32 away from the printing assembly 31. The first transfer mechanism 33 is responsible for further transferring the material to other stages of the production line or for subsequent processing. As described above, the first transfer mechanism 33 is used to transfer the material to the solder strip processing device 4 or to the return mechanism of the printing apparatus 3.

[0151] In this embodiment, the smooth flow of materials during the printing process is ensured, thereby improving production efficiency.

[0152] Furthermore, referring to Figure 2 The printing device 3 further includes a second transmission mechanism 34 and a third transmission mechanism 35. The third transmission mechanism 35 is located close to the first transfer mechanism 2. The first transfer mechanism 2 is used to transfer the single-sided dispensing material returned by the third transmission mechanism 35 back to the printing assembly 31.

[0153] A rotating mechanism is provided between the first transfer mechanism 33 and the second transfer mechanism 34. The rotating mechanism is used to transfer the material dispensed from one side of the first transfer mechanism 33 to the second transfer mechanism 34, and to rotate it by a preset angle.

[0154] A second flipping mechanism is provided between the second transmission mechanism 34 and the third transmission mechanism. The second flipping mechanism is used to flip the material of the second transmission mechanism 34 by 180° and transfer it to the third transmission mechanism 35.

[0155] Specifically, the printing device 3 also includes a second transmission mechanism 34 and a third transmission mechanism 35, as well as a rotation mechanism and a second flipping mechanism, which work together to complete the return of the single-sided dispensing material.

[0156] The rotating mechanism is located between the first transfer mechanism 33 and the second transfer mechanism 34. Its function is to transfer the single-sided dispensing material from the first transfer mechanism 33 to the second transfer mechanism 34, rotating the material at a preset angle during this process. This rotation step is to adjust the orientation of the material for subsequent processing or handling.

[0157] For example, the material in the second conveying mechanism 34 is rotated 90° relative to the material in the first conveying mechanism 33, so as to facilitate subsequent flipping and transfer of the material.

[0158] The third transmission mechanism 35 is located close to the first transfer mechanism 2, which means that if double-sided dispensing is required, the material dispensing on one side will flow back from the third transmission mechanism 35 to the printing device 3.

[0159] The first transfer mechanism 2 is used to transfer the single-sided dispensing material returned by the third transfer mechanism 35 back to the printing assembly 31, so as to achieve double-sided dispensing for dispensing on the other side.

[0160] It should be noted that the structure of the second flipping mechanism can be similar to or the same as the structure of the first flipping mechanism 12 mentioned above.

[0161] It should be noted that the structures of the first transmission mechanism 33, the second transmission mechanism 34 and the second transmission mechanism 34 include, but are not limited to, transmission belts, belts, rollers, etc., as long as they can realize the transmission of materials.

[0162] Furthermore, the structure of the first transmission mechanism 33, the second transmission mechanism 34, and the third transmission mechanism 35 is further defined, and the first transmission mechanism 33, the second transmission mechanism 34, and the third transmission mechanism 35 are all provided with adhesive-avoiding fixtures.

[0163] In this embodiment, adhesive-avoiding fixtures are provided on the first transmission mechanism 33, the second transmission mechanism 34 and the third transmission mechanism 35. The adhesive-avoiding fixture is a special device installed on the transmission mechanism to prevent the screen-printed adhesive on the material from being contaminated or damaged during the transmission process.

[0164] It should be noted that adhesive-avoiding fixtures can be installed on the material conveying mechanism in all processes after the material is dispensed and before the adhesive cures.

[0165] Alternatively, adhesive avoidance can be achieved through physical isolation, airflow control, or other methods to ensure that the screen-printed adhesive remains clean during transport. For example, adhesive avoidance fixtures may include a conveyor belt and a support mechanism disposed on the conveyor belt, with modifications to the structure of the support mechanism to avoid the adhesive dots.

[0166] For example, the support mechanism includes a protrusion, a recess, and a positioning member. When the support mechanism supports a material, the multiple protrusions of the support member can support the material, the recess between two adjacent protrusions corresponds to the glue dotting position on the material surface, thereby avoiding the glue dotting position on the material surface, and the positioning member contacts the edge of the material to position the material on the support member.

[0167] Alternatively, as an example, the support mechanism includes a support member. A support portion is provided at the edge of the support member, which is adapted to support the edge of one side of the material, thereby avoiding adhesive dots on the material surface to prevent them from adhering to the conveyor belt or other locations during workpiece transport.

[0168] Alternatively, the adhesive avoidance tooling can be an adhesive avoidance conveyor belt. For example, gaps, holes, or other avoidance structures can be set on the adhesive avoidance conveyor belt to avoid the location of the adhesive point.

[0169] It should be noted that the specific structure of the adhesive-avoiding tooling in this application embodiment is not limited, as long as it can ensure that the bonding part of the battery cell is not contaminated or damaged during the transportation process.

[0170] <First Transit Agency 2>

[0171] In one specific embodiment, refer to Figure 1 and Figure 6 The first transfer mechanism 2 includes a plurality of first clamps 20, which are rotatable around a first axis 21. The feeding device 1, the printing component 31 of the printing device 3, the third conveying mechanism of the printing device 3, and the waste collection mechanism are arranged around the first axis 21. The first clamps 20 are capable of transferring materials between the feeding device 1, the printing component 31, the third conveying mechanism, and the waste collection mechanism.

[0172] Specifically, the first transfer mechanism 2 includes four first clamps 20, i.e., the first transfer mechanism is a four-rotary gripper mechanism. The four first clamps 20 are spaced apart circumferentially along the rotating shaft. When each first clamp 20 rotates to the feeding device 1, the printing assembly 31, the third conveying mechanism, and the waste collection mechanism, it can choose whether to lower or pick up materials. By setting up four first clamps 20, the first transfer mechanism 2 can improve transfer efficiency and keep the transfer process at a low level.

[0173] It should be noted that, in this embodiment, the structure of the first clamp 20 is not limited, as long as it can clamp and place materials.

[0174] <Strip Processing Device 4>

[0175] In one embodiment, refer to Figure 2 and Figure 3 The welding strip processing device 4 includes a first transport mechanism 40, a conveying robot 42, and a welding strip laying and conveying platform 43;

[0176] A conveying mechanism 41 is provided between the first transport mechanism 40 and the printing device 3. The conveying mechanism 41 is used to convey the material output by the printing device 3 to the first transport mechanism 40.

[0177] The conveying robot 42 is located on one side of the first transport mechanism 40 and is used to transfer the materials of the first transport mechanism 40 to the welding strip laying and conveying platform 43.

[0178] In this embodiment, the solder ribbon processing device 4 includes a first transport mechanism 40 and a conveying mechanism 41 located between the first transport mechanism 40 and the printing device 3. For example, the conveying mechanism 41 is used to transfer the double-sided adhesive material from the first transmission mechanism 33 of the printing device 3 to the first transport mechanism 40. The first transport mechanism 40 transfers the double-sided adhesive material to a position that is easy for a transport robot to grasp.

[0179] The welding strip processing device 4 also includes a conveying robot 42, which is located on one side of the first transport mechanism 40. The conveying robot 42 transfers the material on the first transport mechanism 40 to the welding strip laying and conveying platform 43. Optionally, the conveying robot 42 is a six-axis robot.

[0180] The welding strip processing device 4 also includes a welding strip laying and conveying platform 43, which receives the material transferred by the conveying robot 42 and is responsible for the subsequent welding strip laying.

[0181] For example, the adhesive-avoiding fixtures defined above can be provided on both the first transport mechanism 40 and the conveying mechanism 41.

[0182] In one embodiment, the solder strip processing device 4 further includes a flux coating mechanism, a solder strip stretching assembly, and a solder strip pretreatment assembly;

[0183] The flux coating mechanism and the ribbon laying and conveying platform 43 are located between the ribbon pretreatment component and the ribbon stretching component, and the flux coating mechanism is located between the ribbon laying and conveying platform 43 and the ribbon pretreatment component.

[0184] The welding strip stretching assembly and the welding strip pretreatment assembly cooperate to make the welding strip adhere tightly to the surface of the material on the welding strip laying and conveying platform 43, and the flux coating mechanism can coat the welding strip with flux.

[0185] In this embodiment, the solder strip processing device 4 is further expanded, and the solder strip processing device 4 includes a flux coating mechanism, a solder strip stretching assembly, and a solder strip pretreatment assembly. The three work together to coat the stretched solder strip with flux, so as to facilitate the smooth progress of subsequent processes.

[0186] The flux coating mechanism is located between the ribbon pretreatment assembly and the ribbon laying and conveying platform 43.

[0187] After the solder ribbon is coated with flux, the flux-coated solder ribbon is arranged on the material, and the solder ribbon corresponds to the dispensing position on the material.

[0188] The welding strip stretching assembly and the welding strip pretreatment assembly work together to stretch the welding strip so that it can adhere tightly to the material surface on the welding strip laying and conveying platform 43.

[0189] Welding strip pretreatment assembly: Located before the welding strip stretching assembly, it is responsible for pretreating the welding strip to better bond it with the material.

[0190] Welding strip pretreatment assembly

[0191] For example, the solder strip pretreatment assembly may include a solder strip unwinding mechanism, a solder strip buffering mechanism, a solder strip flattening mechanism, and a solder strip prestretching mechanism, with the solder strip prestretching mechanism and the solder strip stretching assembly located on opposite sides of the flux coating mechanism to stretch the solder strip.

[0192] Specifically, the strip unwinding mechanism is responsible for unwinding the strip from its coil for subsequent processing.

[0193] The welding strip buffer mechanism is located after the welding strip unwinding mechanism. It is used to buffer the tension of the welding strip and ensure that the welding strip will not break or deform due to excessive tension during transmission.

[0194] The welding strip flattening mechanism flattens the welding strip, making it more suitable for bonding with the material surface and improving welding quality.

[0195] The solder strip pre-stretching mechanism is located on one side of the flux coating mechanism. It performs preliminary stretching of the solder strip to prepare for the subsequent solder strip stretching assembly.

[0196] The solder strip stretching assembly is located on the other side of the flux coating mechanism, opposite to the solder strip pre-stretching mechanism. Its function is to perform the final stretching of the solder strip, ensuring that the solder strip adheres tightly to the material surface on the solder strip laying and conveying platform 43.

[0197] Flux coating mechanism

[0198] For example, the flux coating mechanism includes a coating body and a liquid storage tank suitable for holding coating liquid; an adsorption element disposed in the liquid storage tank, the adsorption element having a coating end flush with or protruding from the opening end of the liquid storage tank, the adsorption element being suitable for adsorbing the coating liquid; wherein the coating end can contact the workpiece to coat the workpiece with the coating liquid.

[0199] In this example, the coating body is provided with a liquid storage tank, and the adsorbent is disposed in the liquid storage tank. The coating end of the adsorbent is flush with or protrudes from the opening end of the liquid storage tank. The adsorbent can adsorb the coating liquid, and the welding ribbon can contact the coating end of the adsorbent, so that the surface of the welding ribbon can be coated with the coating liquid. The coating device of this application does not need to apply pressure to the welding ribbon, thereby avoiding the welding ribbon from bending under force.

[0200] Furthermore, by coating the solder ribbon through direct contact between the adsorbent and the surface of the solder ribbon, a more uniform coating can be achieved. Additionally, coating can be applied only to the surface of the solder ribbon in contact with the adsorbent, resulting in higher coating precision and preventing waste of coating solution.

[0201] Furthermore, referring to Figure 3 The welding strip processing device 4 also includes a wire mesh pressing mechanism, a second transport mechanism 44, and a wire mesh return mechanism 45;

[0202] The pressure mesh can press the welding strip firmly against the surface of the material;

[0203] The pressure mesh return mechanism 45 is located on one side of the curing device 5 and is used to return the pressure mesh on the cured material to the second transport mechanism 44.

[0204] The second transport mechanism 44 is located on one side of the conveying robot 42, which is used to transfer the pressing mesh to the welding strip laying and transporting platform 43.

[0205] In this embodiment, the welding strip processing device 4 is further expanded, and the welding strip processing device 4 includes a pressing mesh, a second transport mechanism 44, and a pressing mesh return mechanism 45.

[0206] The pressure mesh can press the welding strip tightly onto the surface of the material, ensuring a close fit between the welding strip and the material, and improving the strength and quality of the weld. Specifically, the conveying robot 42 transfers the pressure mesh located in the second transport mechanism 44 to the welding strip laying and conveying platform 43 and places it on the material. The pressure mesh covers the welding strip to ensure a close fit between the welding strip and the material.

[0207] The second transport mechanism 44 is located on one side of the conveyor robot 42 and is responsible for transporting the pressure net so that the conveyor robot 42 can transfer it to the welding strip laying and transporting platform 43.

[0208] The screen return mechanism 45 is located on one side of the curing device 5. After the material has undergone curing treatment, it returns the screen on the cured material to the second transport mechanism 44 so that the screen can be reused. Specifically, the screen return mechanism 45 is located on one side of the third transport mechanism 50 of the curing device 5.

[0209] It should be noted that, in this embodiment, the second transport mechanism 44 includes, but is not limited to, structures such as belts and rollers, and the pressing and returning mechanism includes, but is not limited to, structures such as belts and grippers.

[0210] Optionally, the welding strip processing device 4 also includes a magnetic suction device. When the pressure mesh cover is placed on the welding strip, the magnetic suction device and the pressure mesh cooperate to make the welding strip adhere to the material.

[0211] The magnetic suction device works in conjunction with the pressure mesh. When the pressure mesh is placed on the welding strip, the magnetic suction device uses magnetic force to ensure close contact between the pressure mesh and the battery cell, thereby firmly pressing the welding strip onto the bonding part.

[0212] For example, by precisely controlling the magnetic force, the magnetic suction device can ensure that the bonding position of the solder strip and the adhesive part is accurate, avoiding the offset or misalignment problems that may occur in traditional methods.

[0213] For example, when curing the first surface (front) of the material, a combination of a pressure mesh and a magnetic suction device can be used to firmly attach the solder ribbon to the material. When curing the second surface (back) of the material, the magnetic force is used to press the material downwards as much as possible to ensure adhesion between the solder ribbon and the material.

[0214] <Curing Device 5>

[0215] In one embodiment, refer to Figure 3 The curing device 5 includes a third transport mechanism 50, and a curing component is provided above and / or below the third transport mechanism 50;

[0216] The third transport mechanism 50 is connected to the welding strip laying and conveying platform 43 to facilitate the transfer of materials to the third transport mechanism 50 for curing.

[0217] In this embodiment, the curing device 5 includes a third transport mechanism 50, which is responsible for material transport. The third transport mechanism 35 can be a belt, chain, roller or other transport method.

[0218] The main function of the third transport mechanism 50 is to move materials from one location to another, especially from the welding strip laying and conveying platform 43 to the third transport mechanism 50, so as to cure the adhesive through the curing component.

[0219] The curing component is the core of the curing device 5, responsible for providing the necessary curing conditions (such as heat, light, pressure, etc.). These conditions cause the material (such as the adhesive on the material) to undergo a curing reaction, thereby achieving the desired physical and chemical properties.

[0220] The curing component is a curing process for the adhesive on which the solder ribbons are laid. On the one hand, it fixes the adhesive and strengthens the connection with the battery cell. On the other hand, it fixes the adhesive and improves the reliability of the connection between the solder ribbons and the adhesive.

[0221] Alternatively, the cured components can be cured using heat curing, UV curing, or other curing technologies. Specific curing methods and parameters (such as temperature, time, and light intensity) can be adjusted according to the properties of the adhesive and solder ribbon used.

[0222] In this embodiment, the third transport mechanism 50 is connected to the welding strip laying and conveying platform 43 to ensure that the material can be smoothly transferred from the laying platform to the curing area. This connection can be achieved through physical contact, mechanical coupling, or an automated control system.

[0223] <Welding Device 6>

[0224] In one embodiment, refer to Figures 7-9The welding device 6 includes a welding transport mechanism 61 and a welding mechanism 62. The welding transport mechanism 61 is used to transport the material of the curing device 5 to the welding mechanism 62.

[0225] The welding mechanism 62 is used to weld the welding strip to the material.

[0226] In this embodiment, the welding device 6 mainly consists of two parts: a welding transport mechanism 61 and a welding mechanism 62. These two parts work together to realize the process of transporting the material from the curing device 5 to the welding position and performing welding.

[0227] First, the main function of the welding transport mechanism 61 is to transport materials. The welding transport mechanism 61 takes the processed material from the curing device 5 and then accurately transports it to the working area of ​​the welding mechanism 62. Specifically, the welding transport mechanism 61 picks up the processed material from the third transport mechanism 50 and transports it to the working area of ​​the welding mechanism 62. This process requires high-precision positioning and transport technology to ensure that the material is not damaged during transport and can accurately reach the welding position.

[0228] Next, welding mechanism 62 is responsible for welding the welding strip to the material. Once the material reaches the welding position, welding mechanism 62 initiates the welding procedure, using appropriate welding techniques and parameters to firmly weld the welding strip onto the material. This process requires precise welding control and high-quality welding techniques to ensure the strength and reliability of the weld joint.

[0229] Welding handling mechanism 61

[0230] For example, refer to Figure 7 and Figure 8 The welding handling mechanism 61 includes an installation mechanism 611, a picking mechanism 612, and a clamping mechanism 613, both of which are connected to the installation mechanism 611. The installation mechanism 611 can drive the picking mechanism 612 and the clamping mechanism 613 to move. Specifically, the installation mechanism 611 can drive the picking mechanism 612 to transfer the material located in the third transport mechanism 50 to the welding mechanism 62. The clamping mechanism 613 can move above the welding mechanism 62 to clamp the welding strip located in the welding mechanism 62. Specifically, the clamping mechanism 613 includes clamping elements 6131 arranged in a row, which are placed on the welding strip to tightly adhere the welding strip to the material.

[0231] For example, the clamping member 6131 includes a clamping head and a clamping rod, the clamping rod being connected to the mounting mechanism 611, and the clamping head being elastically telescopically connected to the clamping rod. The clamping head is suitable for clamping the welding strip.

[0232] Welding mechanism 62

[0233] For example, refer to Figure 9 The welding mechanism 62 includes a heating device 621, which includes a fixing plate 622, a mounting frame 623 and a heating body 624. The heating body 624 is floatingly mounted on the mounting frame 623, and the mounting frame 623 is vertically adjustable relative to the fixing plate 622.

[0234] The welding mechanism 62 also includes a welding platform 625, which is used to support the battery cell with the welding strip. The welding platform 625 is fixed on the fixing plate 622. The heating body 624 is located below the welding platform 625 and is used to cooperate with the pressure head of the welding transport mechanism 61 to weld the welding strip.

[0235] In a specific example, the heating body 624 has multiple heating sub-bodies arranged along its length, each heating sub-bodies being independently arranged and equipped with multiple strip welding heads. These strip welding heads cooperate with the pressure head of the welding transport mechanism 61 to weld the welding strip.

[0236] In order to enable the heating body 624 to be floatably mounted on the mounting frame 623, a buffer mechanism is provided between the heating sub-body and the mounting frame 623, and the buffer mechanism drives the heating sub-body to float relative to the mounting frame 623.

[0237] It should be noted that this embodiment does not limit the structure of the buffer mechanism, as long as it can drive the heating sub-body to float relative to the mounting frame 623.

[0238] In a specific example, the heating device 621 also includes a main drive mechanism, at least two auxiliary drive mechanisms and a transmission mechanism. The at least two auxiliary drive mechanisms are located on opposite sides of the main drive mechanism. The auxiliary drive mechanisms are linked with the main drive mechanism through the transmission mechanism to jointly drive the mounting frame 623 to move vertically relative to the fixed plate 622.

[0239] It should be noted that this embodiment does not limit the structure of the main drive mechanism, auxiliary drive mechanism and transmission mechanism, as long as the drive mounting frame 623 can move up and down relative to the fixed plate 622.

[0240] <Method Implementation Examples>

[0241] This application also provides a method for manufacturing solar cells. The method is applied to the solar cell stringing machine described above.

[0242] The battery cell manufacturing method includes the following steps:

[0243] S1: Provide materials;

[0244] S2: Apply adhesive to the first and / or second surfaces of the material to form dispensing sites; the first and second surfaces are disposed opposite to each other;

[0245] S3: Welding strips are laid on the material, and the welding strips correspond to the dispensing positions;

[0246] S4: Curing treatment is applied to the dispensing area to pre-fix the solder strip;

[0247] S5: Weld the pre-fixed welding strip and the material to form a battery cell.

[0248] In step S1, materials can be provided by the feeding device 1 and transported to a preset position by the feeding device 1, so that the first transfer mechanism 2 can grab and transfer them to the printing device 3.

[0249] In step S2, adhesive is applied to the first surface (front) and / or the second surface (back) of the material by the adhesive application device 3 to form adhesive application positions.

[0250] In step S3, the welding strip is laid on the material by the welding strip processing device 4, and the welding strip corresponds to the dispensing position.

[0251] In step S4, the material is cured by the curing device 5 to bond the solder ribbon and adhesive together and improve the bonding strength.

[0252] In step S5, the pre-fixed welding strips and materials are welded together by the welding device 6 to form a battery cell.

[0253] The feeding device 1, printing device 3, first transfer mechanism 2, solder strip processing device 4 and curing device 5 mentioned in this embodiment are all devices mentioned in the first aspect of the embodiments of this application, and the structure and function of each device will not be described in detail here.

[0254] Therefore, in this embodiment, the welding ribbon is fixed to the battery cell by applying adhesive first and then welding, which avoids the risk of the welding ribbon falling off during the transportation of the battery cell and improves the quality of the battery cell.

[0255] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0256] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A battery cell stringing machine, characterized in that, include: The feeding device (1) is used to transport materials to a preset position; The printing device (3) is used to apply adhesive to the front and back of the material to form a dispensing position; The first transfer mechanism (2) is located between the feeding device (1) and the printing device (3); the first transfer mechanism (2) is used to transfer the material located at the preset position to the printing device (3), or it is also used to transfer the single-sided dispensing material returned by the printing device (3) back to the printing device (3). The solder ribbon processing device (4) is located on one side of the printing device (3). The solder ribbon processing device (4) is used to cover the surface of the material after dispensing with solder ribbon. The solder ribbon corresponds to the dispensing position. A curing device (5) is located on one side of the welding strip processing device (4), and the curing device (5) is used to pre-fix the welding strip; A welding device (6) is located on one side of the curing device (5). The welding device (6) is used to weld the pre-fixed welding strip to the material. The printing device (3) includes a printing assembly (31) and a second transfer mechanism (32), wherein the printing assembly (31) is located between the first transfer mechanism (2) and the second transfer mechanism (32); The printing device (3) further includes a first transfer mechanism (33), which is located on the side of the second transfer mechanism (32) away from the printing assembly (31). The second transfer mechanism (32) is used to transfer the material of the printing assembly (31) to the first transfer mechanism (33). The printing device (3) further includes a second transmission mechanism (34) and a third transmission mechanism (35). The third transmission mechanism (35) is located close to the first transfer mechanism (2). The first transfer mechanism (2) is used to transfer the single-sided dispensing material returned by the third transmission mechanism (35) back to the printing assembly (31) again, and the same printing assembly (31) is used to dispense adhesive on the front and back sides of the material. A rotating mechanism is provided between the first transfer mechanism (33) and the second transfer mechanism (34). The rotating mechanism is used to transfer the material dispensing on one side of the first transfer mechanism (33) to the second transfer mechanism (34). A second flipping mechanism is provided between the second transmission mechanism (34) and the third transmission mechanism (35). The second flipping mechanism is used to flip the material of the second transmission mechanism (34) by 180° and transfer it to the third transmission mechanism (35).

2. The cell stringing machine according to claim 1, characterized in that, The feeding device (1) includes a first conveying mechanism (10), a material gripping mechanism (11), a first flipping mechanism (12), and a second conveying mechanism (13). The first conveying mechanism (10) is located on one side of the material gripping mechanism (11), and the second conveying mechanism (13) is located below the first flipping mechanism (12) and the material gripping mechanism (11); The material gripping mechanism (11) is used to transfer the material from the first conveying mechanism (10) to the second conveying mechanism (13). In this process, the materials conveyed to the second conveying mechanism (13) are grouped into two adjacent groups, and the first flipping mechanism (12) is used to flip one material in each group and transfer it to the second conveying mechanism (13).

3. The cell stringing machine according to claim 1, characterized in that, The first transmission mechanism (33), the second transmission mechanism (34) and the third transmission mechanism (35) are all equipped with adhesive-avoiding fixtures.

4. The cell stringing machine according to claim 1, characterized in that, The first transfer mechanism (2) and / or the second transfer mechanism (32) are four-rotary gripper devices.

5. The cell stringing machine according to claim 1, characterized in that, The welding strip processing device (4) includes a first transport mechanism (40), a conveying robot (42), and a welding strip laying and transmission platform (43). A conveying mechanism (41) is provided between the first transport mechanism (40) and the printing device (3), and the conveying mechanism (41) is used to convey the material output by the printing device (3) to the first transport mechanism (40). The conveying robot (42) is located on one side of the first transport mechanism (40) and is used to transfer the material of the first transport mechanism (40) to the welding strip laying and conveying platform (43).

6. The cell stringing machine according to claim 5, characterized in that, The welding strip processing device (4) also includes a flux coating mechanism, a welding strip stretching assembly, and a welding strip pretreatment assembly; The flux coating mechanism and the ribbon laying and conveying platform (43) are located between the ribbon pretreatment component and the ribbon stretching component, and the flux coating mechanism is located between the ribbon laying and conveying platform (43) and the ribbon pretreatment component; The welding strip stretching assembly and the welding strip pretreatment assembly cooperate to make the welding strip adhere tightly to the surface of the material on the welding strip laying and conveying platform (43), and the flux coating mechanism can coat the welding strip with flux.

7. The cell stringing machine according to claim 5, characterized in that, The welding strip processing device (4) also includes a wire mesh pressing mechanism, a second transport mechanism (44), and a wire mesh return mechanism (45). The pressure mesh can press the welding strip firmly against the surface of the material; The pressure mesh return mechanism (45) is located on one side of the curing device (5) and is used to return the pressure mesh on the cured material to the second transport mechanism (44). The second transport mechanism (44) is located on one side of the conveying robot (42), which is used to transfer the pressing mesh to the welding strip laying and transporting platform (43).

8. The cell stringing machine according to claim 5, characterized in that, The curing device (5) includes a third transport mechanism (50), and a curing component is provided above and / or below the third transport mechanism (50); The third transport mechanism (50) is connected to the welding strip laying and conveying platform (43) so as to transport the material to the third transport mechanism (50) for curing.

9. The cell stringing machine according to claim 1, characterized in that, The welding device (6) includes a welding transport mechanism (61) and a welding mechanism (62). The welding transport mechanism (61) is used to transport the material of the curing device (5) to the welding mechanism (62). The welding mechanism (62) is used to weld the welding strip to the material.

10. A method for producing solar cells, characterized in that, The cell manufacturing method is applied to the cell stringing machine as described in any one of claims 1-9; The battery cell manufacturing method includes the following steps: Provide materials; Adhesive is applied to a first surface and a second surface of the material to form dispensing sites; the first surface and the second surface are disposed opposite to each other. A welding strip is laid on the material, and the welding strip corresponds to the dispensing position; The adhesive application site is cured to pre-fix the solder strip; The pre-fixed solder strips and the material are welded together to form a battery cell.

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