Solar cell screen printing equipment

Abstract

The utility model is suitable for the technical field of solar cell printing, and provides a solar cell screen printing device which comprises a monorail feeding mechanism, a visual module, a printing main machine, a monorail discharging mechanism, a transfer device and a movable platform. A monorail feeding mechanism; the transfer device is used for transferring half battery pieces to the movable platform and moving the half battery pieces on the movable platform to the single-track discharging mechanism. The movable platform is used for bearing half battery pieces and moving the half battery pieces to the positioning station, the printing station and the discharging station. The visual module is used for determining the position information of the half battery piece on the movable platform; the printing host is used for printing the half battery piece on the movable platform according to the position information of the half battery piece; and the monorail discharging mechanism is used for moving out the printed half battery piece. The solar cell silk-screen printing equipment facilitates manual operation, is high in printing yield and printing efficiency, and can be conveniently in butt joint with single-cavity drying and sintering equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell printing, in particular to solar cell screen printing equipment. Background Art

[0002] In the production process of solar cells, the production of cells is the core part of the entire solar cell module production process. Among them, the main production processes of cells are: texturing, diffusion, wet etching, thin film deposition, electrode printing and sintering. In the process of printing electrodes, screen printing is generally used. With the development of battery technology, more and more process routes in the photovoltaic industry require the use of half-cell printers in the screen printing section. In order to reduce the power loss caused by the cutting loss of the battery module end, the use of half-cell printers is particularly important.

[0003] In the prior art, the half-sheet printer used in solar cell screen printing is mainly a double-track turntable printing device, that is, a double track is used to transmit two half-sheet cells and feed them simultaneously, and the two half-sheet cells on the turntable are driven to rotate to the bottom of the printing head in sequence by rotating the turntable, and the double printing heads are used to print the half-sheet cells respectively, and the two half-sheet cells after printing are removed by the double-track unloading mechanism. However, the double-track turntable printing device has the following problems:

[0004] 1. Due to the double printing heads, a larger diameter turntable needs to be designed. During use, it is inconvenient to manually change the screen, wipe the screen, replace the scraper and ink return knife due to the long distance. You can only stop and crawl in to operate or walk to the back of the printing machine to operate, which poses a safety risk and poor operation convenience;

[0005] 2. The half-cell battery is transmitted through double tracks, and the equipment transmission hardware is doubled. In addition, the transmission synchronization of the half-cell battery on the two tracks is poor, resulting in low printing yield. Moreover, due to the larger turntable and larger rotation radius, the overall running speed is slowed down, resulting in low printing efficiency.

[0006] 3. Since the unloading mechanism of the solar cell printing equipment needs to be connected to the drying and sintering equipment, and the double-track unloading mechanism of the double-track turntable printing equipment cannot directly use the single-cavity drying and sintering equipment, it is necessary to design a special double-cavity drying and sintering equipment to connect with the double-track unloading mechanism. The design and production of the drying and sintering equipment is difficult and the production cost is high. Moreover, due to the double-cavity design, the space of the drying and sintering equipment is increased, the temperature control of the drying and sintering equipment is difficult, and it is difficult to ensure uniform thermal radiation of the battery cell, which is not conducive to the drying and sintering process of the battery cell. In addition, the use of double-cavity drying equipment will bring about problems such as a significant increase in equipment cost, wider and larger equipment, and increased energy consumption.

[0007] Therefore, it is necessary to provide a new solar cell screen printing device to solve the above technical problems. Utility Model Content

[0008] The utility model provides a solar cell screen printing device, aiming to solve the problems of the double-track turntable printing device used in the solar cell screen printing in the prior art, which is inconvenient for manual operation, has low printing yield and printing efficiency, and is inconvenient for docking with a single-cavity drying and sintering device.

[0009] The utility model is implemented in this way, providing a solar cell screen printing device, comprising a single track feeding mechanism, a visual module, a printing host and a single track unloading mechanism arranged in sequence along a first direction, and a transfer device and a movable platform are also arranged between the single track feeding mechanism and the single track unloading mechanism;

[0010] The single-track feeding mechanism is used to convey a plurality of half-cell battery cells that are sequentially spaced apart along the first direction;

[0011] The transfer device is used to transfer the half-cell battery sheet on the single-track feeding mechanism to the movable platform, and is used to move the half-cell battery sheet that has been printed on the movable platform to the single-track unloading mechanism;

[0012] The movable platform is used to carry at least two half-sheets of battery cells and to move in sequence along the first direction to a positioning station, a printing station, and a material unloading station;

[0013] The visual module is located at the positioning station, and is used to determine the position information of each half-cell battery sheet on the movable platform, and output the position information of each half-cell battery sheet to the printing host;

[0014] The printing host is located at the printing station, and is used to print the corresponding half-cell battery sheet on the movable platform according to the position information of each half-cell battery sheet;

[0015] The single-track unloading mechanism is used to remove the half-sheet battery cell after printing.

[0016] Preferably, the movable platform comprises at least two sub-platforms arranged in sequence along the first direction, each of the sub-platforms is used to place at least two half-cell battery sheets; the number of printing heads included in the printing host is adapted to the number of the sub-platforms.

[0017] Preferably, the movable platform comprises a first sub-platform and a second sub-platform sequentially arranged along a first direction, the first sub-platform is used to place a first half of a battery cell and a second half of a battery cell, the second sub-platform is used to place a third half of a battery cell and a fourth half of a battery cell, and the first half of a battery cell, the second half of a battery cell, the third half of a battery cell and the fourth half of a battery cell are sequentially arranged along the first direction;

[0018] The visual module is used to locate the first half of the battery cell, the second half of the battery cell, the third half of the battery cell and the fourth half of the battery cell;

[0019] The printing host includes a first printing head and a second printing head arranged along a first direction, the first printing head is used to print the second half of the battery cell and the first half of the battery cell in sequence, and the second printing head is used to print the fourth half of the battery cell and the third half of the battery cell in sequence.

[0020] Preferably, the first printing head and the second printing head are located on the same side of the single-track feeding mechanism.

[0021] Preferably, the printing station comprises a first printing station and a second printing station sequentially arranged along a first direction, and the movable platform is used to move to the first printing station and the second printing station sequentially along the first direction;

[0022] When the movable platform is located at the first printing station, the first printing head is used to print the second half of the battery cell, and the second printing head is used to print the fourth half of the battery cell;

[0023] When the movable platform is located at the second printing station, the first printing head is used to print the first half of the battery cell, and the second printing head is used to print the third half of the battery cell.

[0024] Preferably, the movable platform also includes a third sub-platform for placing the fifth half of the battery cell and the sixth half of the battery cell, the first sub-platform, the second sub-platform and the third sub-platform are arranged in sequence along the first direction, and the first half of the battery cell, the second half of the battery cell, the third half of the battery cell, the fourth half of the battery cell, the fifth half of the battery cell and the sixth half of the battery cell are arranged in sequence along the first direction; the printing host also includes a third printing head, and the third printing head is used to print the sixth half of the battery cell and the fifth half of the battery cell in sequence.

[0025] Preferably, when the movable platform is located at the first printing station, the first printing head is used to print the second half of the battery cell, the second printing head is used to print the fourth half of the battery cell, and the third printing head is used to print the sixth half of the battery cell;

[0026] When the movable platform is located at the second printing station, the first printing head is used to print the first half of the battery cell, the second printing head is used to print the third half of the battery cell, and the third printing head is used to print the fifth half of the battery cell.

[0027] Preferably, the solar cell screen printing equipment comprises three groups of movable platforms, and the three groups of movable platforms synchronously and cyclically move between the positioning station, the printing station and the unloading station.

[0028] Preferably, the solar cell screen printing equipment comprises a group of movable platforms, and the movable platforms cyclically move between the positioning station, the printing station and the unloading station.

[0029] Preferably, the movable platform is provided with a vacuum adsorption hole for adsorbing half a cell sheet.

[0030] The utility model provides a solar cell screen printing device that adopts a single track loading mechanism to load materials along a single track, and transfers half a cell to a movable platform through a transfer device. The movable platform drives the half cell along the single track direction to perform visual positioning of the half cell and printing of the half cell. The transfer device transfers the half cell to the single track unloading mechanism along the single track direction, and the single track unloading mechanism then moves the half cell out of the solar cell screen printing device along the single track for unloading. The loading, positioning, printing and unloading of the half cell are all located along the single track direction. Compared with the traditional rotary printing equipment, the solar cell screen printing equipment of the utility model can directly move the movable platform away when manual replacement of the screen, wiping the screen, replacing the scraper and ink return knife and other operations are required. Moreover, since the movable platform can be designed to be smaller in size, the personnel can directly stand at the printing host position to replace the screen, wipe the screen, replace the scraper and ink return knife and other operations, which is convenient to operate and convenient for manual operation. Moreover, since the half-cell cell transmission of the utility model is transmitted through a single track, the problem of asynchronous transmission of half-cell cells in a double-track rotary printing machine is solved. The solar cell screen printing equipment of the utility model has good synchronization in transmission of half-cell cells, which improves the printing yield and reduces The production cost is reduced, the overall operating speed is faster, and the printing efficiency is higher; moreover, the single-track unloading mechanism can be directly connected to the single-cavity drying and sintering equipment, and there is no need to design a special double-cavity drying and sintering equipment, which reduces the production difficulty and production cost, and is convenient for each half-cell to enter the single cavity in the drying and sintering equipment at the same time, reducing the difficulty of temperature control of the drying and sintering equipment, and the heat radiation of each half-cell is more direct and uniform; in addition, compared with the traditional double-track turntable printing equipment that needs to be connected to the double-cavity drying and sintering equipment, the single-track unloading mechanism of the solar cell screen printing equipment of the utility model is directly connected to the single-cavity drying and sintering equipment, and the single-cavity drying and sintering equipment is smaller in size, the equipment cost is significantly reduced, and energy consumption can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a solar cell screen printing device provided by an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of a transfer device of a solar cell screen printing device provided by an embodiment of the utility model when transferring a half-cell;

[0033] Figure 3 A schematic diagram of a group of movable platforms of a solar cell screen printing device provided by an embodiment of the utility model;

[0034] Figure 4 A schematic diagram of another solar cell screen printing device provided by an embodiment of the utility model;

[0035] Figure 5 A schematic diagram of a group of movable platforms of another solar cell screen printing device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] The solar cell screen printing device provided by the embodiment of the utility model adopts a single track loading mechanism to load materials along a single track, and transfers half a cell to a movable platform through a transfer device, and the movable platform drives the half cell along the single track direction to perform visual positioning of the half cell and print the half cell, and the transfer device transfers the half cell to the single track unloading mechanism along the single track direction, and the single track unloading mechanism then moves the half cell out of the solar cell screen printing device along the single track for unloading. The loading, positioning, printing and unloading of the half cell are all located along the single track direction. Compared with the traditional double-track turntable printing equipment, the solar cell screen printing equipment of the utility model can directly move the movable platform away when manual operations such as replacing the screen, wiping the screen, replacing the scraper and ink return knife are required, and the personnel can directly stand at the printing host position to replace the screen, wipe the screen, replace the scraper and ink return knife, etc. The operation is convenient and convenient for manual operation; moreover, since the half-cell cell transmission of the utility model is transmitted through a single track, the synchronization problem of half-cell cell transmission existing in the double-track printing machine is solved, the printing yield is improved, and the production cost is reduced. The overall operation speed is faster and has higher printing efficiency ; Moreover, the single-track unloading mechanism can be directly connected to the single-chamber drying and sintering equipment, and there is no need to design a special double-chamber drying and sintering equipment, which reduces the production difficulty and production cost, and is convenient for each half-cell to enter the single cavity in the drying and sintering equipment at the same time, reducing the difficulty of temperature control of the drying and sintering equipment, and the heat radiation of each half-cell is more direct and uniform; in addition, compared with the traditional double-track turntable printing equipment that needs to be connected to the double-chamber drying and sintering equipment, the single-track unloading mechanism of the solar cell screen printing equipment of the utility model is directly connected to the single-chamber drying and sintering equipment, the single-chamber drying and sintering equipment is smaller in size, the equipment cost is significantly reduced, and energy consumption can be reduced.

[0038] Please refer to Figure 1-Figure 3 The solar cell screen printing device provided by the embodiment of the utility model comprises a single track feeding mechanism 1, a visual module 2, a printing host 3 and a single track unloading mechanism 4 which are sequentially arranged along a first direction, and a transfer device 5 and a movable platform 6 are further arranged between the single track feeding mechanism 1 and the single track unloading mechanism 4;

[0039] The single-track feeding mechanism 1 is used to convey a plurality of half-cell battery cells 7 that are sequentially spaced apart along a first direction;

[0040] The transfer device 5 is used to transfer the half-cell battery sheet 7 on the single-track feeding mechanism 1 to the movable platform 6, and is used to move the half-cell battery sheet 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4;

[0041] The movable platform 6 is used to carry at least two half-cell battery sheets 7, and is used to move in sequence along the first direction to the positioning station 8, the printing station 9, and the unloading station 10;

[0042] The visual module 2 is located at the positioning station 8, and is used to determine the position information of each half-cell battery cell 7 on the movable platform 6, and output the position information of each half-cell battery cell 7 to the printing host 3;

[0043] The printing host 3 is located at the printing station 9, and the printing host 3 is used to print the corresponding half-cell battery sheet 7 on the movable platform 6 according to the position information of each half-cell battery sheet 7;

[0044] The single-track unloading mechanism 4 is used to remove the half-sheet battery cell 7 after printing.

[0045] The solar cell screen printing device provided by the embodiment of the utility model is provided with a single track feeding mechanism 1, a visual module 2, a printing host 3 and a single track unloading mechanism 4 arranged in sequence along a first direction, and a transfer device 5 and a movable platform 6 are arranged between the single track feeding mechanism 1 and the single track unloading mechanism 4; the single track feeding mechanism 1 is used to transport a plurality of half-cell battery cells 7 arranged in sequence along the first direction, and at least two half-cell battery cells 7 on the single track feeding mechanism 1 are transferred to the movable platform 6 by the transfer device 5, and the movable platform 6 drives at least two half-cell battery cells 7 to move to the movable platform 6. The battery cell 7 moves to the positioning station 8, and the visual module 2 is used to determine the position information of each half-cell battery cell 7 on the movable platform 6. The movable platform 6 then drives at least two half-cell battery cells 7 to move to the printing station 9. The printing host 3 prints the corresponding half-cell battery cell 7 on the movable platform 6 according to the position information of each half-cell battery cell 7. The transfer device 5 then moves the half-cell battery cell 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4. Finally, the half-cell battery cell 7 that has been printed on the movable platform 6 is moved out to the drying and sintering equipment through the single-track unloading mechanism 4.

[0046] The solar cell screen printing equipment of the present invention adopts a single-track loading mechanism 1 to load materials along a single track, and transfers half-cell cells 7 to a movable platform 6 along the single track direction through a transfer device 5. The movable platform 6 drives the half-cell cells 7 to move to a positioning station 8 along the single track direction to perform visual positioning of the half-cell cells 7, and moves to a printing station 9 to perform printing of the half-cell cells 7. The transfer device 5 then transfers the half-cell cells 7 to a single-track unloading mechanism 4 along the single track direction. The single-track unloading mechanism 4 then moves the half-cell cells 7 out of the solar cell screen printing equipment along the single track direction for unloading. The loading, positioning, printing and unloading of the half-cell battery 7 are all along the single track direction. Compared with the traditional double-track turntable printing equipment, the solar cell screen printing equipment of the utility model can directly move the movable platform 6 away when manual replacement of the screen, wiping the screen, replacing the scraper and ink return knife and other operations are required. Moreover, since the movable platform can be designed to be smaller in size, the personnel can directly stand at the position of the printing host 3 to replace the screen, wipe the screen, replace the scraper and ink return knife and other operations, which is convenient to operate and convenient for manual operation; moreover, since the half-cell battery 7 of the utility model is transmitted through a single track, the problem of asynchronous transmission of the half-cell battery in the double-track printing machine is solved, and the printing efficiency is improved. The printing yield is improved, and the production cost is reduced, the overall operating speed is faster, and the printing efficiency is higher; moreover, the single-track unloading mechanism 4 can be directly connected to the single-cavity drying and sintering equipment, and there is no need to design a special double-cavity drying and sintering equipment, which reduces the production difficulty and production cost, and is convenient for each half-cell battery cell 7 to enter the single cavity in the drying and sintering equipment at the same time, reducing the difficulty of temperature control of the drying and sintering equipment, and the heat radiation of each half-cell battery cell 7 is more direct and uniform; moreover, compared with the traditional double-track turntable printing equipment that needs to be connected to the double-cavity drying and sintering equipment, the utility model directly uses the single-cavity drying and sintering equipment, and the single-cavity drying and sintering equipment is smaller in size, the equipment cost is significantly reduced, and the energy consumption can be reduced.

[0047] In the embodiment of the utility model, when the single track feeding mechanism 1 feeds, a plurality of half-cell battery cells 7 are arranged in a row along a first direction on the single track feeding mechanism 1. In practical applications, the first direction may be an X direction or a Y direction. Figure 1 The first direction is the X direction; similarly, when the single-track unloading mechanism 4 unloads, a plurality of half-cell battery cells 7 are arranged in a row along the first direction on the single-track unloading mechanism 4. Specifically, the single-track loading mechanism 1 and the single-track unloading mechanism 4 can be belts or chains, and the belts or chains are driven to rotate by the driving device, so that the single-track loading mechanism 1 and the single-track unloading mechanism 4 drive the half-cell battery cells 7 to move along the first direction. Preferably, the single-track loading mechanism 1 and the single-track unloading mechanism 4 are belts, which facilitate the stable placement of the half-cell battery cells 7.

[0048] Among them, the single-track loading mechanism 1 and the single-track unloading mechanism 4 may specifically include only one belt or chain, and a plurality of half-cell battery cells 7 are sequentially placed on a belt or chain at intervals along the first direction, and the half-cell battery cells 7 are driven forward by a belt or chain. The single-track loading mechanism 1 and the single-track unloading mechanism 4 may specifically include two belts or two chains that are parallel to each other and move synchronously, and a plurality of half-cell battery cells 7 are sequentially supported on two belts or two chains along the first direction, and the half-cell battery cells 7 are synchronously driven forward by two belts or two chains. In addition, the single-track loading mechanism 1 and the single-track unloading mechanism 4 may specifically include three or more belts or chains.

[0049] In the embodiment of the utility model, the visual module 2 is arranged above the positioning station 8. When the movable platform 6 drives the half-cell battery 7 to move to the bottom of the visual module 2, the visual module 2 starts to take pictures of each half-cell battery 7 on the movable platform 6, calculates the position information of each half-cell battery 7 through software, and outputs the position information of each half-cell battery 7 to the printing host 3, so as to adjust the screen position of the printing head on the printing host 3 to adapt to the printing of each half-cell battery 7. Among them, the visual module 2 can be a single camera or a multi-camera adapted to the number of half-cell batteries 7 on the movable platform 6. For example, the visual module 2 is specifically 4 groups of 5 cameras or 4 groups of single cameras or 4 groups of 4 cameras, which can perform edge positioning or point positioning.

[0050] In the embodiment of the utility model, the transfer device 5 can specifically be a movable tray or a mobile manipulator, and the specific implementation structure is not limited.

[0051] Taking the transfer device 5 as a movable tray as an example, the movable tray can move along the first direction and the second direction between the single track loading mechanism 1 and the movable platform 6, and between the movable platform 6 and the single track unloading mechanism 4. Exemplarily, the first direction is perpendicular to the second direction, the first direction is the X direction, and the second direction is the Z direction. The movable tray is provided with a plurality of support portions 51 (such as Figure 2 As shown in the figure, multiple half-cell battery sheets 7 on the movable platform 6 are lifted by multiple supporting parts 51 at the same time. The movement of the transfer device 5 along the first direction and the second direction can be realized by a linear motor, a cylinder or a hydraulic cylinder. The running guide rails for the transfer device 5 to move along the first direction and the second direction are not shown in the figure.

[0052] Taking the transfer device 5 as a movable tray as an example, when the transfer device 5 transfers the half-cell battery cell 7 on the single-track feeding mechanism 1 to the movable platform 6, the transfer device 5 first moves to the bottom of the half-cell battery cell 7 on the single-track feeding mechanism 1, then rises to lift at least two half-cell battery cells 7 and drives the half-cell battery cell 7 to move to the top of the movable platform 6, and then the transfer device 5 descends until the half-cell battery cell 7 is placed on the movable platform 6, and the transfer device 5 returns to the position for the next transfer of the half-cell battery cell 7. When the transfer device 5 moves the half-cell battery cell 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4, the transfer device 5 first moves to the bottom of the movable platform 6, the transfer device 5 then moves upward and lifts the half-cell battery cell 7 that has been printed on the movable platform 6, and then the transfer device 5 moves to the top of the single-track unloading mechanism 4, and the transfer device 5 descends again until the half-cell battery cell 7 is placed on the single-track unloading mechanism 4, and the transfer device 5 returns to the position for the next transfer of the half-cell battery cell 7.

[0053] In the embodiment of the utility model, the number of transfer devices 5 can be one, and one transfer device 5 can transfer the half-cell battery cell 7 on the single-track feeding mechanism 1 to the movable platform 6, and can also be used to move the half-cell battery cell 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4. The number of transfer devices 5 can also be two, one transfer device 5 is used to transfer the half-cell battery cell 7 on the single-track feeding mechanism 1 to the movable platform 6, and the other transfer device 5 is used to move the half-cell battery cell 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4, so that the two transfer devices 5 can work at the same time, reducing waiting time and improving printing efficiency. Among them, Figure 1 There are two transfer devices 5 shown in the figure. The first transfer device 5 is used to transfer the half-cell battery cell 7 on the single-track loading mechanism 1 to the movable platform 6, and the second transfer device 5 is used to move the half-cell battery cell 7 that has been printed on the movable platform 6 to the single-track unloading mechanism 4.

[0054] In the embodiment of the utility model, the movable platform 6 can move between the single track feeding mechanism 1 and the single track unloading mechanism 4 along the first direction and the third direction, and the first direction is perpendicular to the third direction. The moving track of the movable platform 6 is not shown in the figure. The movement of the movable platform 6 along the first direction and the second direction can be achieved by a linear motor, a cylinder or a hydraulic cylinder, and the specific implementation structure of the movable platform 6 is not limited. As a possible way, Figure 3 As shown, the movable platform 6 can specifically be provided with grooves 60 at both sides of the half-cell battery cell 7 so that the multiple support parts 51 of the transfer device 5 can pass through the grooves 60 to place the half-cell battery cell 7 on the movable platform 6 or remove the half-cell battery cell 7 from the movable platform 6.

[0055] In the embodiment of the present application, the second direction and the third direction may be the same or different. For example, the first direction is the X direction, and the second direction and the third direction are both the Z direction; or the first direction is the X direction, the second direction is the Z direction, and the third direction is the Y direction.

[0056] In an embodiment of the utility model, the number of half-cell battery cells 7 carried by the movable platform 6 can be at least two. The movable platform 6 drives at least two half-cell battery cells 7 to move to the positioning station 8 for visual positioning. The movable platform 6 then drives at least two half-cell battery cells 7 to move to the printing station 9 for printing, and the half-cell battery cells 7 on the movable platform 6 are arranged in sequence along the first direction.

[0057] As an embodiment of the present invention, the movable platform 6 includes at least two sub-platforms arranged in sequence along the first direction, each sub-platform is used to place at least two half-cell battery cells 7; the number of printing heads included in the printing host 3 is adapted to the number of sub-platforms.

[0058] In this embodiment, the movable platform 6 may include two sub-platforms, three sub-platforms or more sub-platforms, and each sub-platform can hold two half-cell cells 7, three half-cell cells 7 or more half-cell cells; the number of printing heads of the printing host 3 may be two, three or more. Preferably, the number of half-cell cells 7 carried by the movable platform 6 is an even number, which is convenient for printing operations. The number of printing heads included in the printing host 3 is equal to the number of sub-platforms, so that each printing head prints a half-cell cell 7 on a sub-platform, thereby improving printing efficiency. Among them, as the number of half-cell cells 7 placed on each sub-platform and the number of printing heads increase, the printing efficiency will also increase accordingly. The sub-platforms of the movable platform 6 can be separated from each other or can be arranged as one. Optionally, the sub-platforms of the movable platform 6 are spaced apart from each other to facilitate the printing work of each printing head and avoid motion interference between the printing heads.

[0059] As an optional embodiment of the utility model, each movable platform 6 includes a first sub-platform 61 and a second sub-platform 62 arranged in sequence along the first direction, the first sub-platform 61 is used to place the first half of the battery cell 71 and the second half of the battery cell 72, the second sub-platform 62 is used to place the third half of the battery cell 73 and the fourth half of the battery cell 74, the first half of the battery cell 71, the second half of the battery cell 72, the third half of the battery cell 73 and the fourth half of the battery cell 74 are arranged in sequence along the first direction;

[0060] The visual module 2 is used to locate the first half cell 71, the second half cell 72, the third half cell 73 and the fourth half cell 74;

[0061] The printing host 3 includes a first printing head 31 and a second printing head 32 arranged along a first direction. The first printing head 31 is used to print the second half of the battery cell 72 and the first half of the battery cell 71 in sequence, and the second printing head 32 is used to print the fourth half of the battery cell 74 and the third half of the battery cell 73 in sequence.

[0062] In this embodiment, the transfer device 5 transfers four half-cell battery cells 7 from the single-track loading mechanism 1 to the movable platform 6 each time. The movable platform 6 drives the four half-cell battery cells 7 to perform visual positioning and printing in turn. The printing host 3 uses two printing heads to print the half-cell battery cells 7 on the first sub-platform 61 and the second sub-platform 62 respectively. The two printing heads can print at the same time, which greatly improves the printing efficiency.

[0063] In this embodiment, each time the transfer device 5 transfers four half-cells 7 from the single-track loading mechanism 1 to the movable platform 6, for ease of description, the four half-cells 7 on the movable platform 6 are defined as the first half-cell 71, the second half-cell 72, the third half-cell 73 and the fourth half-cell 74. The first sub-platform 61 is used to place the first half-cell 71 and the second half-cell 72, and the second sub-platform 62 is used to place the third half-cell 73 and the fourth half-cell 74. The movable platform 6 drives the first half of the battery cell 71, the second half of the battery cell 72, the third half of the battery cell 73 and the fourth half of the battery cell 74 to move to the bottom of the visual module 2, and the visual module 2 visually locates the first half of the battery cell 71, the second half of the battery cell 72, the third half of the battery cell 73 and the fourth half of the battery cell 74, and the visual module 2 outputs the position information of each half of the battery cell 7 to the printing host 3; the movable platform 6 then moves to the bottom of the printing host 3, so that the first sub-platform 61 is located below the first printing head 31, and the second sub-platform 62 is located below the second printing head 32, and the printing host 3 adjusts the screen position of the first printing head 31 according to the position of the second half of the battery cell 72 to adapt to the printing host 3. To print the second half of the battery cell 72, the printing host 3 adjusts the screen position of the second printing head 32 according to the position of the fourth half of the battery cell 74 to adapt to the printing of the fourth half of the battery cell 74, and then the first printing head 31 prints the second half of the battery cell 72, and the second printing head 32 prints the fourth half of the battery cell; the movable platform 6 then moves a preset distance along the first direction, the first printing head 31 prints the first half of the battery cell 71, and the second printing head 32 prints the third half of the battery cell; the movable platform 6 then moves to the position of the single-track unloading mechanism 4, and the transfer device 5 then transfers the half-cell battery cell 7 printed on the movable platform 6 to the single-track unloading mechanism 4 to complete printing, and repeats the above actions to achieve continuous printing.

[0064] As an embodiment of the present invention, the first printing head 31 and the second printing head 32 are located on the same side of the single-track feeding mechanism 1, which is convenient for manual operation such as replacing the screen, wiping the screen, replacing the scraper and ink return knife at the front position of the printing host 3, and is more convenient for manual operation. As an embodiment of the present invention, the printing station 9 includes a first printing station and a second printing station arranged in sequence along a first direction, and the movable platform 6 is used to move to the first printing station and the second printing station in sequence;

[0065] When the movable platform 6 is located at the first printing station, the first printing head 31 prints the second half of the battery cell 72, and the second printing head 32 prints the fourth half of the battery cell 74;

[0066] When the movable platform 6 is located at the second printing station, the first printing head 31 prints the first half of the battery cell 71 , and the second printing head 32 prints the third half of the battery cell 73 .

[0067] In this embodiment, when the movable platform 6 moves to the first printing station, the second half of the battery cell 72 is located below the first printing head 31, and the fourth half of the battery cell 74 is located below the second printing head 32, so that the first printing head 31 can print the fourth half of the battery cell 74, while the second printing head 32 can print the fourth half of the battery cell 74, so that the second half of the battery cell and the fourth half of the battery cell 74 can be printed at the same time, thereby improving the printing efficiency; when the movable platform 6 moves to the second printing station, the first half of the battery cell 71 is located below the first printing head 31, and the third half of the battery cell 73 is located below the second printing head 32, so that the first printing head 31 can print the first half of the battery cell 71, while the second printing head 32 can print the third half of the battery cell 73, so that the first half of the battery cell and the third half of the battery cell 73 can be printed at the same time, thereby improving the printing efficiency.

[0068] Please refer to Figure 4 and Figure 5 As an embodiment of the utility model, each movable platform 6 also includes a third sub-platform 63 for placing the fifth half-cell battery 75 and the sixth half-cell battery 76, the first sub-platform 61, the second sub-platform 62 and the third sub-platform 63 are arranged in sequence along the first direction, the first half-cell battery 71, the second half-cell battery 72, the third half-cell battery 73, the fourth half-cell battery 74, the fifth half-cell battery 75 and the sixth half-cell battery 76 are arranged in sequence along the first direction; the printing host 3 also includes a third printing head 33, and the third printing head 33 is used to print the sixth half-cell battery 76 and the fifth half-cell battery 75 in sequence.

[0069] In this embodiment, the transfer device 5 transfers six half-cell battery cells 7 from the single-track loading mechanism 1 to the movable platform 6 each time. The movable platform 6 drives the six half-cell battery cells 7 to perform visual positioning and printing in turn. The printing host 3 uses three printing heads to print the half-cell battery cells 7 on the first sub-platform 61, the second sub-platform 62, and the third sub-platform 63 respectively. The three printing heads can print at the same time, further improving the printing efficiency.

[0070] As an embodiment of the present utility model, the first printing head 31, the second printing head 32 and the third printing head 33 are all located on the same side of the single-track feeding mechanism 1, which is more convenient for manual operation.

[0071] As an embodiment of the present utility model, when the movable platform 6 is located at the first printing station, the first printing head 31 prints the second half of the battery cell 72, the second printing head 32 prints the fourth half of the battery cell 74, and the third printing head 33 prints the sixth half of the battery cell 76;

[0072] When the movable platform 6 is located at the second printing station, the first printing head 31 prints the first half of the battery cell 71 , the second printing head 32 prints the third half of the battery cell 73 , and the third printing head 33 prints the fifth half of the battery cell 75 .

[0073] In this embodiment, when the movable platform 6 moves to the first printing station, the second half of the battery cell 72 is located below the first printing head 31, the fourth half of the battery cell 74 is located below the second printing head 32, and the sixth half of the battery cell 76 is located below the third printing head 33, so that the first printing head 31 prints the fourth half of the battery cell 74, while the second printing head 32 prints the fourth half of the battery cell 74, and the third printing head 33 prints the sixth half of the battery cell 76; when the movable platform 6 moves to the second printing station, the first half of the battery cell 71 is located below the first printing head 31, the third half of the battery cell 73 is located below the second printing head 32, and the fifth half of the battery cell 75 is located below the third printing head 33, so that the first printing head 31 prints the first half of the battery cell 71, while the second printing head 32 prints the third half of the battery cell 73, and the third printing head 33 prints the fifth half of the battery cell 75, so that three half-cells can be printed at the same time, thereby further improving the printing efficiency.

[0074] As an embodiment of the utility model, the solar cell screen printing device comprises three groups of movable platforms 6 , and the three groups of movable platforms 6 synchronously and cyclically move between the positioning station 8 , the printing station 9 and the unloading station 10 .

[0075] In this embodiment, when the three groups of movable platforms 6 can be installed on the same track, the three groups of movable platforms 6 are respectively installed on the same runway-shaped track. When the three groups of movable platforms 6 can be installed on the same track, the running track of the movable platforms 6 can be a runway-shaped track, so that the three groups of movable platforms 6 can circulate along the track. When the three groups of movable platforms 6 are respectively installed on different tracks, the tracks are sequentially spaced along the Y-axis direction, so that each group of movable platforms 6 can move back and forth along different tracks alone.

[0076] In this embodiment, three groups of movable platforms 6 are used to drive the half-cell battery 7 to move cyclically in the positioning station 8, the printing station 9 and the unloading station 10, so that the half-cell battery 7 on the three groups of movable platforms 6 can be visually positioned, printed and unloaded at the same time, which greatly reduces the waiting time and can realize the uninterrupted continuous printing of the half-cell battery 7, greatly improving the printing efficiency. In addition, the movable platforms 6 can also be two or more groups.

[0077] As an embodiment of the present invention, the solar cell screen printing device comprises a group of movable platforms 6 , and the movable platforms 6 circulate among the positioning station 8 , the printing station 9 and the unloading station 10 .

[0078] In this embodiment, a group of movable platforms 6 are used to drive the half-cell battery cell 7 to circulate among the positioning station 8, the printing station 9 and the unloading station 10, which can reduce the number of movable platforms 6 and reduce production costs.

[0079] like Figure 3 As shown, as an embodiment of the present utility model, the movable platform 6 is provided with a vacuum adsorption hole 65 for adsorbing a half-cell battery cell 7 .

[0080] In this embodiment, there are multiple vacuum adsorption holes 65, and multiple vacuum adsorption holes 65 are arranged in an array on the movable platform 6 to generate uniform suction on the half-cell battery cell 7. The vacuum adsorption holes 65 are connected to the external vacuum pump through the air path. When the vacuum pump works, the vacuum adsorption holes 65 generate suction on the half-cell battery cell 7 on the movable platform 6, so that the half-cell battery cell 7 is stably placed on the movable platform 6, preventing the half-cell battery cell 7 from moving relative to the movable platform 6, thereby improving the printing accuracy. When the half-cell battery cell 7 needs to be unloaded from the movable platform 6, the vacuum pump stops working, so that the suction of the vacuum adsorption holes 65 on the half-cell battery cell 7 disappears, making it easier for the transfer device 5 to take the half-cell battery cell 7 away from the movable platform 6.

[0081] The present invention also provides a solar cell screen printing method, which uses the solar cell screen printing device of the above embodiment, and the method includes the following steps:

[0082] Step S1, a single-track feeding mechanism 1 conveys a plurality of half-cell battery cells 7 arranged in sequence and at intervals along a first direction;

[0083] In this embodiment, a plurality of half-cell battery cells 7 are arranged in a row along a first direction on a single-track loading mechanism 1, and the single-track loading mechanism 1 moves along the first direction toward the single-track unloading mechanism 4 to drive a plurality of half-cell battery cells 7 to move forward at the same time, thereby realizing single-track loading.

[0084] Step S2, the transfer device 5 transfers the half-cell battery cell 7 on the single-track feeding mechanism 1 to the movable platform 6;

[0085] In this embodiment, the number of half-cell battery cells 7 taken and placed by the transfer device 5 each time is the same as the number of half-cell battery cells 7 placed on the movable platform 6. For example, when the number of half-cell battery cells 7 placed on the movable platform 6 is four, the number of half-cell battery cells 7 taken and placed by the transfer device 5 each time is four.

[0086] Specifically, the transfer device 5 first moves to the bottom of the half-cell battery cell 7 of the single-track loading mechanism 1, then rises to lift the corresponding number of half-cell battery cells 7 and drives the half-cell battery cells 7 to move above the movable platform 6, and then the transfer device 5 descends until the half-cell battery cell 7 is placed on the movable platform 6.

[0087] Step S3, the movable platform 6 carries at least two half-cell battery sheets 7 and drives the half-cell battery sheets 7 to move to the positioning station 8;

[0088] In the embodiment of the utility model, the number of half-cell battery cells 7 carried by the movable platform 6 can be two, three, four or more. In this step, after the transfer device 5 moves the half-cell battery cell 7 of the single-track feeding mechanism 1 to the movable platform 6, the movable platform 6 drives the half-cell battery cell 7 to the positioning station 8, so that the visual module 2 can visually locate the half-cell battery cell 7 on the movable platform 6.

[0089] Step S4, the visual module 2 determines the position information of each half-cell battery sheet 7 on the movable platform 6, and outputs the position information of each half-cell battery sheet 7 to the printing host 3;

[0090] In the embodiment of the utility model, the visual module 2 takes a picture of each half-cell battery cell 7 on the movable platform 6, determines the position information of each half-cell battery cell 7 through software, and outputs the position information of each half-cell battery cell 7 to the printing host 3, so that when the printing host 3 prints the corresponding half-cell battery cell 7, the screen position of the printing head on the printing host 3 can be adjusted to adapt to the printing of each half-cell battery cell 7 to improve the printing accuracy.

[0091] Step S5, the movable platform 6 drives at least two half-cells 7 to move to the printing station 9, and the printing host 3 prints the corresponding half-cell 7 on the movable platform 6 according to the position information of each half-cell 7; the movable platform 6 drives at least two half-cells to move to the unloading station 10 along the first direction;

[0092] In this step, after the visual module 2 determines the position information of each half-cell 7 on the printing platform, the movable platform 6 drives at least two half-cells 7 to move to the printing station 9 to print the half-cells 7, and the printing host 3 adjusts the screen on the printing head according to the position information of each half-cell 7 determined by the visual module 2 to adapt to the printing of the corresponding half-cell 7, and prints the half-cells 7 on the movable platform 6 in sequence. After the printing of the half-cell 7 on the movable platform 6 is completed, the movable platform 6 moves to the unloading station 10 to realize the unloading action;

[0093] Step S6, the transfer device 5 transfers each half-sheet of battery cells 7 after printing on the movable platform 6 to the single-track unloading mechanism 4;

[0094] Specifically, the transfer device 5 lifts the half-cell battery cell 7 printed on the movable platform 6 and moves it toward the single-track unloading mechanism 4 , and the transfer device 5 then places the half-cell battery cell 7 on the single-track unloading mechanism 4 .

[0095] Step S7, the single-track unloading mechanism 4 drives the printed half-cell 7 to be removed.

[0096] Specifically, after the transfer device 5 places the half-cell 7 on the single-track unloading mechanism 4, the single-track unloading mechanism 4 drives the half-cell 7 thereon to be moved out of the solar cell screen printing equipment in sequence, so that the half-cell 7 can enter the subsequent drying and sintering process.

[0097] As an embodiment of the utility model, each movable platform 6 includes a first sub-platform 61 for placing a first half-cell battery 71 and a second half-cell battery 72, and also includes a second sub-platform 62 for placing a third half-cell battery 73 and a fourth half-cell battery 74. The first half-cell battery 71, the second half-cell battery 72, the third half-cell battery 73 and the fourth half-cell battery 74 are sequentially arranged along the first direction; the printing host 3 includes a first printing head 31 and a second printing head 32 arranged along the first direction; step S5 includes:

[0098] Step S51, the movable platform 6 moves along the first direction to the first printing station, the first printing head 31 prints the second half of the battery cell 72, and the second printing head 32 prints the fourth half of the battery cell 74;

[0099] Step S52 , the movable platform 6 moves along the first direction to the second printing station, the first printing head 31 prints the first half of the battery cell 71 , and the second printing head 32 prints the third half of the battery cell 73 .

[0100] In this embodiment, the transfer device 5 transfers four half-cell battery cells 7 from the single-track loading mechanism 1 to the movable platform 6 each time. The movable platform 6 drives the four half-cell battery cells 7 to perform visual positioning and printing. The printing host 3 uses two printing heads to print the half-cell battery cells 7 on the first sub-platform 61 and the second sub-platform 62 respectively. The two printing heads perform printing operations at the same time, which greatly improves the printing efficiency.

[0101] In this embodiment, the transfer device 5 transfers the first half cell 71, the second half cell 72, the third half cell 73 and the fourth half cell 74 from the single track feeding mechanism 1 to the movable platform 6 at the same time. The first sub-platform 61 is used to place the first half cell 71 and the second half cell 72, and the second sub-platform 62 is used to place the third half cell 73 and the fourth half cell 74; the movable platform 6 drives the first half cell 71, the second half cell 72, the third half cell 73 and the fourth half cell 74 to move under the visual module 2, and the visual module 2 visually locates the first half cell 71, the second half cell 72, the third half cell 73 and the fourth half cell 74, and outputs the position information of each half cell 7 to the printing host 3. The movable platform 6 then moves to the position of the printing host 3, so that the first sub-platform 61 is located below the first printing head 31, and the second sub-platform 62 is located below the second printing head 32. The printing host 3 adjusts the screen position of the first printing head 31 according to the position of the second half-cell battery 72 to adapt to printing the second half-cell battery 72. The printing host 3 adjusts the screen position of the second printing head 32 according to the position of the fourth half-cell battery 74 to adapt to printing the fourth half-cell battery 74. The first printing head 31 prints the second half-cell battery 72, and the second printing head 32 prints the fourth half-cell battery at the same time; then, the movable platform 6 moves a preset distance in the first direction (i.e., from the first printing station to the second printing station), the first printing head 31 prints the first half-cell battery 71, and the second printing head 32 prints the third half-cell battery at the same time; the movable platform 6 moves to the position of the single-track unloading mechanism 4 again, and the transfer device 5 transfers the half-cell battery 7 printed on the movable platform 6 to the single-track unloading mechanism 4 to complete printing, and repeats the above actions to achieve continuous printing.

[0102] As an embodiment of the utility model, each movable platform 6 also includes a third sub-platform 63 for placing the fifth half-cell battery 75 and the sixth half-cell battery 76, the first sub-platform 61, the second sub-platform 62 and the third sub-platform 63 are arranged in sequence along the first direction, the first half-cell battery 71, the second half-cell battery 72, the third half-cell battery 73, the fourth half-cell battery 74, the fifth half-cell battery 75 and the sixth half-cell battery 76 are arranged in sequence along the first direction; the printing host 3 also includes a third printing head 33, the first printing head 31, the second printing head 32 and the third printing head 33 are arranged in sequence along the first direction.

[0103] In this embodiment, step S51 specifically includes: the movable platform 6 moves to the first printing station, the first printing head 31 prints the second half of the battery cell 72, the second printing head 32 prints the fourth half of the battery cell 74, and the third printing head 33 prints the sixth half of the battery cell 76;

[0104] In this embodiment, step S52 specifically includes: the movable platform 6 moves to the second printing station, the first printing head 31 prints the first half of the battery cell 71 , the second printing head 32 prints the third half of the battery cell 73 , and the third printing head 33 prints the fifth half of the battery cell 75 .

[0105] In this embodiment, the transfer device 5 transfers six half-cell battery cells 7 from the single-track loading mechanism 1 to the movable platform 6 each time, the visual module 2 performs visual positioning on the six half-cell battery cells 7, and the printing host 3 uses three printing heads to print the half-cell battery cells 7 on the first sub-platform 61, the second sub-platform 62, and the third sub-platform 63 respectively. The three printing heads perform printing operations simultaneously, further improving the printing efficiency.

[0106] A solar cell screen printing device provided by an embodiment of the utility model adopts a single-track loading mechanism 1 to load materials along a single track, and transfers half-cell cells 7 to a movable platform 6 through a transfer device 5. The movable platform 6 drives the half-cell cells 7 to move to a positioning station 8 along the direction of the single track to perform visual positioning of the half-cell cells 7, and further moves to a printing station 9 to perform printing of the half-cell cells 7. The transfer device 5 then transfers the half-cell cells 7 to a single-track unloading mechanism 4 along the direction of the single track, and the single-track unloading mechanism 4 then moves the half-cell cells 7 out of the solar cell screen printing device along the direction of the single track for unloading. The loading, positioning, printing and unloading of the half-cell battery 7 are all along a single track direction. Compared with the traditional double-track turntable printing equipment, the solar cell screen printing equipment of the utility model can directly move the movable platform 6 away when manual replacement of the screen, wiping the screen, replacing the scraper and ink return knife and other operations are required, and the personnel can directly stand at the printing host 3 to replace the screen, wipe the screen, replace the scraper and ink return knife and other operations, which is easy to operate and convenient for manual operation; moreover, since the half-cell battery 7 of the utility model is transmitted through a single track, the problem of asynchronous transmission of the half-cell battery in the double-track printing machine is solved, the printing yield is improved, and the production cost is reduced. The production cost is reduced, the overall operating speed is faster, and the printing efficiency is higher; moreover, the single-track unloading mechanism 4 can be directly connected to the single-cavity drying and sintering equipment, and there is no need to design a special double-cavity drying and sintering equipment, which reduces the production difficulty and production cost, and is convenient for each half-cell battery cell 7 to enter the single cavity in the drying and sintering equipment at the same time, reducing the difficulty of temperature control of the drying and sintering equipment, and the heat radiation of each half-cell battery cell 7 is more direct and uniform; moreover, compared with the traditional double-track turntable printing equipment that needs to be connected to the double-cavity drying and sintering equipment, the utility model directly uses the single-cavity drying and sintering equipment, and the single-cavity drying and sintering equipment is smaller in size, the equipment cost is significantly reduced, and the energy consumption can be reduced.

[0107] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar cell screen printing device, characterized in that: It includes a single track feeding mechanism, a visual module, a printing host and a single track unloading mechanism which are sequentially arranged along a first direction, and a transfer device and a movable platform are also arranged between the single track feeding mechanism and the single track unloading mechanism; The single-track feeding mechanism is used to convey a plurality of half-cell battery cells that are sequentially spaced apart along the first direction; The transfer device is used to transfer the half-cell battery sheet on the single-track feeding mechanism to the movable platform, and is used to move the half-cell battery sheet that has been printed on the movable platform to the single-track unloading mechanism; The movable platform is used to carry at least two half-sheets of battery cells and to move in sequence along the first direction to a positioning station, a printing station, and a material unloading station; The visual module is located at the positioning station, and is used to determine the position information of each half-cell battery sheet on the movable platform, and output the position information of each half-cell battery sheet to the printing host; The printing host is located at the printing station, and is used to print the corresponding half-cell battery sheet on the movable platform according to the position information of each half-cell battery sheet; The single-track unloading mechanism is used to remove the half-sheet battery cell after printing.

2. The solar cell screen printing device according to claim 1, characterized in that: The movable platform comprises at least two sub-platforms arranged in sequence along a first direction, each of the sub-platforms being used to place at least two half-cell battery sheets; the number of printing heads included in the printing host is adapted to the number of the sub-platforms.

3. The solar cell screen printing device according to claim 1 or 2, characterized in that: The movable platform comprises a first sub-platform and a second sub-platform sequentially arranged along a first direction, the first sub-platform is used to place a first half of a battery cell and a second half of a battery cell, the second sub-platform is used to place a third half of a battery cell and a fourth half of a battery cell, the first half of a battery cell, the second half of a battery cell, the third half of a battery cell and the fourth half of a battery cell are sequentially arranged along the first direction; The visual module is used to locate the first half of the battery cell, the second half of the battery cell, the third half of the battery cell and the fourth half of the battery cell; The printing host includes a first printing head and a second printing head arranged along a first direction, the first printing head is used to print the second half of the battery cell and the first half of the battery cell in sequence, and the second printing head is used to print the fourth half of the battery cell and the third half of the battery cell in sequence.

4. The solar cell screen printing device according to claim 3, characterized in that: The first printing head and the second printing head are located on the same side of the single-track feeding mechanism.

5. The solar cell screen printing device according to claim 3, characterized in that: The printing stations include a first printing station and a second printing station sequentially arranged along a first direction, and the movable platform is used to move to the first printing station and the second printing station sequentially along the first direction; When the movable platform is located at the first printing station, the first printing head is used to print the second half of the battery cell, and the second printing head is used to print the fourth half of the battery cell; When the movable platform is located at the second printing station, the first printing head is used to print the first half of the battery cell, and the second printing head is used to print the third half of the battery cell.

6. The solar cell screen printing device according to claim 5, characterized in that: The movable platform also includes a third sub-platform for placing the fifth half of the battery cell and the sixth half of the battery cell, the first sub-platform, the second sub-platform and the third sub-platform are arranged in sequence along the first direction, and the first half of the battery cell, the second half of the battery cell, the third half of the battery cell, the fourth half of the battery cell, the fifth half of the battery cell and the sixth half of the battery cell are arranged in sequence along the first direction; the printing host also includes a third printing head, and the third printing head is used to print the sixth half of the battery cell and the fifth half of the battery cell in sequence.

7. The solar cell screen printing device according to claim 6, characterized in that: When the movable platform is located at the first printing station, the first printing head is used to print the second half of the battery cell, the second printing head is used to print the fourth half of the battery cell, and the third printing head is used to print the sixth half of the battery cell; When the movable platform is located at the second printing station, the first printing head is used to print the first half of the battery cell, the second printing head is used to print the third half of the battery cell, and the third printing head is used to print the fifth half of the battery cell.

8. The solar cell screen printing device according to claim 1, characterized in that: The solar cell screen printing equipment comprises three groups of movable platforms, and the three groups of movable platforms synchronously and cyclically move among the positioning station, the printing station and the unloading station.

9. The solar cell screen printing device according to claim 1, characterized in that: The solar cell screen printing equipment comprises a group of movable platforms, and the movable platforms cyclically move between the positioning station, the printing station and the unloading station.

10. The solar cell screen printing device according to claim 1, characterized in that: The movable platform is provided with a vacuum adsorption hole for adsorbing half a cell sheet.

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