Screen printing machine

Abstract

The screen printing machine comprises a feeding mechanism, a printing machine table and a discharging mechanism which are arranged in sequence, and the feeding mechanism is used for conveying battery pieces to be printed to a feeding position; the printing machine table comprises a machine frame, a transferring mechanism and at least two printing parts, each printing part comprises a mounting machine frame, a printing table and a printing mechanism, the mounting machine frames extend in the second horizontal direction, and the printing tables can move to the material receiving station, the printing station and the discharging station in the second horizontal direction to be mounted on the mounting machine frames; the printing mechanism is used for printing the battery pieces on the printing table on the printing station; the transfer mechanism is used for picking up the battery pieces at the feeding position, conveying the picked battery pieces to the positions above the material receiving stations of all the printing parts in the first horizontal direction and then releasing the battery pieces to the printing tables located on the material receiving stations. According to the screen printing machine, the overall length of the machine table is greatly shortened, and equipment can be conveniently placed in a workshop.

Description

Technical Field

[0001] This application belongs to the technical field of photovoltaic cell production equipment, and in particular relates to a screen printing machine. Background Technology

[0002] During the production of battery modules, conductive materials need to be printed on the surface of the battery cells to form grid lines for collecting current. The industry typically uses screen printing machines to print the grid lines.

[0003] Chinese invention patent CN113715481B discloses a battery cell printing device. The device includes an input mechanism, an installation platform, four printing tables, two printing mechanisms, and an output mechanism. The installation platform extends along a first horizontal direction and is sequentially provided with a receiving station, two printing stations, and a unloading station along the first horizontal direction. The input mechanism and the output mechanism are respectively located at both ends of the length direction of the installation platform. The four printing tables can be movably mounted on the installation platform in the first horizontal direction. In the actual production process, the four printing tables of the battery cell printing device are divided into two groups, each group including two printing tables. The two groups of printing tables are moved to the input mechanism to receive the battery cells to be printed, then the battery cells are moved to the printing mechanisms for printing, and finally the printed battery cells are moved to the output mechanism for unloading.

[0004] Obviously, the loading and unloading direction of the battery cells in the existing battery cell slab printing equipment is consistent with the printing flow direction of the battery cells. This results in the overall length of the battery cell slab printing equipment being too large, which is not conducive to workshop placement. Summary of the Invention

[0005] The purpose of this application is to provide a screen printing machine to solve the aforementioned problems of existing screen printing machines.

[0006] To achieve this objective, the following technical solution is adopted in this application: This application discloses a screen printing machine, which includes a feeding mechanism, a printing table, and a discharging mechanism arranged sequentially, wherein: The feeding mechanism is configured to convey the battery cells to be printed to the feeding position; The printing machine includes a frame, a transfer mechanism, and at least two printing sections. The at least two printing sections are spaced apart on the frame along a first horizontal direction. Each printing section includes a mounting frame, a printing table, and a printing mechanism. The mounting frame extends along a second horizontal direction and is provided with a receiving station, a printing station, and a unloading station spaced apart along the second horizontal direction. The printing table is movable along the second horizontal direction to the receiving station, the printing station, and the unloading station and is mounted on the mounting frame. The printing mechanism is located above the printing station and is configured to print on the battery cells on the printing table at the printing station. The second horizontal direction is perpendicular to the first horizontal direction. The transfer mechanism is mounted on the frame and located above at least two printing sections. The transfer mechanism is configured to pick up the battery cells from the loading position and transport the picked-up battery cells along a first horizontal direction to the receiving station of each printing section, and then release them onto the printing table located at the receiving station. The printing table receives the battery cells released by the transfer mechanism, transports the received battery cells to the printing station, and transports the printed battery cells to the unloading station. The unloading mechanism is configured to unload the printed battery cells at the unloading stations of each printing section.

[0007] The screen printing machine proposed in this application sets the mounting frame of the printing section to extend along the second horizontal direction. After the transfer mechanism picks up the battery cells at the loading position, it transports the battery cells along the first horizontal direction to the printing tables of the corresponding printing sections. This makes the flow direction of battery cell loading and unloading perpendicular to the flow direction of battery cell printing, thereby greatly shortening the overall length of the screen printing machine and making it easier to place the equipment in the workshop. Moreover, by setting the transfer mechanism above the printing section, the vertical space of the frame is fully utilized, resulting in a compact overall structure and high space utilization.

[0008] Optionally, the receiving station is located on the first side of the frame in the second horizontal direction, and the printing station and the unloading station are located on the second side of the frame in the second horizontal direction.

[0009] By setting up the material receiving station, printing station, and unloading station, the space on both sides of the frame in the second horizontal direction is fully utilized, reducing the space occupied by the equipment and resulting in a reasonable layout.

[0010] Optionally, the transfer mechanism includes two adsorption conveyor lines and a first transition conveyor line, wherein: Each adsorption conveyor line corresponds to one printing unit. The adsorption conveyor line is suspended on the frame and includes a first conveyor frame, two first conveyor belts, and two adsorption components, wherein: Two first conveyor belts are rotatably mounted on the first conveyor frame and spaced apart along the second horizontal direction; Each adsorption component corresponds to a first conveyor belt. The adsorption component includes a mounting block, which is mounted on a first conveyor frame. The mounting block has an air blowing end extending in a first horizontal direction. The height of the air blowing end is higher than the lower side of the first conveyor belt. Air is blown obliquely towards the side of the first conveyor belt through the air blowing end to form an adsorption force for adsorbing the battery cells onto the lower side of the two first conveyor belts. The first transition conveyor line is located between two adjacent adsorption conveyor lines. The first transition conveyor line is configured to receive the battery cells conveyed by the preceding adsorption conveyor line and convey the received battery cells to the subsequent adsorption conveyor line.

[0011] By cooperating with two adsorption conveyor lines and a first transition conveyor line, the solar cells are transported to each printing section. Through the design of the adsorption components, an adsorption component based on Bernoulli's principle is provided, which can protect the solar cells while ensuring stable and reliable adsorption and conveying.

[0012] Optionally, the printing section also includes a first inspection component, which is mounted on the frame and located above the receiving station. The first inspection component includes a matrix camera and a first positioning camera, wherein: The first positioning camera is set next to the matrix camera. The first positioning camera is configured to detect the position information of the printing table at the receiving station in order to obtain the deviation distance between the actual position of the printing table at the receiving station and the standard position. The matrix camera is configured to detect the position information of the cells on the printing table and send the acquired position information to the control system. The control system generates an alignment adjustment strategy based on the acquired position information of the cells to align the cells on the printing table with the printing mechanism before printing.

[0013] By setting up a first positioning camera, the position information of the printing table at the material receiving station is automatically detected. Then, the printing table is adjusted according to the obtained position information to ensure that the printing table at the material receiving station is in a standard position, thereby improving the accuracy of material receiving. By setting up a matrix camera, the position information of the battery cells on the printing table at the material receiving station is automatically detected to generate an alignment adjustment strategy, so that the battery cells on the printing table are aligned with the printing mechanism before printing, thereby improving printing accuracy.

[0014] Optionally, two sets of printing tables are provided. The first set of printing tables is located on the first side of the mounting frame in the second horizontal direction, and the second set of printing tables is located on the second side of the mounting frame in the second horizontal direction. The two sets of printing tables alternately receive the battery cells released by the transfer mechanism from the receiving station, transport the received battery cells to the printing station, and transport the printed battery cells to the unloading station.

[0015] By setting up two sets of printing tables, which alternately transport the battery cells to the printing station for printing and alternately transport the printed battery cells to the unloading station, continuous operation of the printing mechanism is achieved, improving the printing efficiency of the battery cells. At the same time, the two sets of printing tables are respectively set on both sides of the mounting frame in the second horizontal direction, making full use of the space on both sides of the mounting frame in the second horizontal direction, resulting in a reasonable layout.

[0016] Optionally, the printing table includes a support platform, a first drive mechanism, and a cell translation mechanism. The support platform is configured to support the cells. The cell translation mechanism is disposed on the support platform and is configured to drive the cells supported on the support platform to translate. The drive end of the first drive mechanism is connected to the support platform and is configured to drive the support platform to translate and lift.

[0017] The carrier platform is driven to move horizontally and vertically by the cooperation of the first drive mechanism and the cell translation mechanism, so that the carrier platform can receive the cells to be printed from the receiving station, transport the received cells to the printing station, and transport the printed cells to the unloading mechanism.

[0018] Optionally, the printing mechanism includes a mounting plate, a second drive mechanism, a screen assembly, and a squeegee assembly, wherein: Two support members are spaced apart on the frame along the first horizontal direction, and the mounting plate overlaps the two support members at both ends along the first horizontal direction. The second drive mechanism is mounted on the mounting plate, and the screen assembly is connected to the drive end of the second drive mechanism. The second drive mechanism is configured to drive the screen assembly to translate, lift, and rotate in the horizontal plane to adjust the position of the screen assembly. The squeegee assembly is mounted on the screen assembly and is configured to print the material on the screen assembly onto the battery cells at the printing station.

[0019] By setting two support members on the frame and attaching the two ends of the mounting plate to the two support members, the two ends of the mounting plate are supported, thereby avoiding the printing quality being affected by the deformation of the mounting plate due to sagging. Through the cooperation of the second drive mechanism, the screen assembly and the squeegee assembly, the battery cells on the printing station are printed.

[0020] Optionally, the printing mechanism also includes a second positioning camera, which is mounted next to the printing station and configured to detect the position information of the printing table at the printing station to obtain the deviation distance between the actual position of the printing table at the printing station and the standard position.

[0021] By setting up a second positioning camera, the position information of the printing table at the printing station is automatically detected. Then, the printing table is adjusted according to the obtained position information to ensure that the printing table at the printing station is in a standard position, thereby improving printing accuracy.

[0022] Optionally, the printing mechanism also includes a temperature and humidity control assembly, which includes a housing, a sprayer, and a hygrometer, wherein: The housing is mounted on the mounting plate, and the interior of the housing forms a space to accommodate the movement of the scraper assembly; The sprayer and humidity meter are housed inside the housing. The humidity meter is configured to detect the humidity inside the housing, and the sprayer is configured to spray atomized pure water toward the scraper assembly based on the humidity meter's detection result.

[0023] By setting up temperature and humidity control components, the paste on the screen of the squeegee assembly is always kept in a suitable environment, which facilitates printing and avoids the problem of poor printing quality caused by paste drying.

[0024] Optionally, the feeding mechanism includes a feeding assembly, a conveying mechanism, a feeding conveyor line, and a second transition conveyor line, wherein: The feeding assembly is configured to supply the solar cells to be printed; The conveying mechanism includes a feeding drive mechanism and an adsorption component. The drive end of the feeding drive mechanism is connected to the adsorption component. The feeding drive mechanism is configured to drive the adsorption component to move laterally. The adsorption component is configured to adsorb or release the battery cells to be printed. The feeding drive mechanism drives the adsorption component to move to a preset position of the feeding assembly to pick up the battery cells to be printed on the feeding assembly. The feeding drive mechanism drives the adsorption component and the battery cells adsorbed by the adsorption component to move to a preset position of the feeding conveyor line to release the battery cells adsorbed by the adsorption component onto the feeding conveyor line. The feeding conveyor line is configured to receive the battery cells released by the adsorption unit and convey the received battery cells toward the second transition conveyor line; The second transition conveyor line is located on the first side of the frame in the second horizontal direction. The second transition conveyor line is configured to receive the battery cells conveyed by the feeding conveyor line and convey the received battery cells to the feeding position.

[0025] By cooperating with the feeding assembly, the conveying mechanism, the feeding conveyor line, and the second transition conveyor line, the battery cells to be printed are transported to the feeding position; at the same time, by setting the second transition conveyor line on the first side of the second horizontal direction of the frame, the overall length of the screen printing machine can be further reduced.

[0026] Optionally, the feeding mechanism also includes a second inspection component. An inspection station is set on the conveying path of the feeding conveyor line, and the second inspection component is set above the inspection station. The second inspection component is configured to inspect whether the battery cells to be printed at the inspection station are qualified.

[0027] By setting up a second detection component, automatic detection of whether the cells to be printed are qualified is realized during the cell feeding process. Then, based on the detection results, the subsequent printing mechanism is controlled to print only the qualified cells.

[0028] Optionally, there are two printing sections: a first printing section located near the feeding mechanism and a second printing section located near the unloading mechanism. The unloading mechanism includes a third transition conveyor line, a transfer conveyor assembly, and an output mechanism. The third transition conveyor line and transfer conveyor assembly are located on the second side of the frame in the second horizontal direction; The third transition conveyor line connects to the printing table of the second printing department. The third transition conveyor line is configured to receive the printed battery cells on the printing table at the unloading station of the second printing department and convey the received printed battery cells to the unloading mechanism. The transfer conveying component docks with the printing table of the first printing department. The transfer conveying component is configured to receive the printed battery cells on the printing table at the unloading station of the first printing department and convey the received printed battery cells to the unloading mechanism. The unloading mechanism is configured to transport the received printed solar cells to the next process.

[0029] By cooperating with the third transition conveyor line and the discharge mechanism, the printed battery cells on the printing table of the second printing section are transported to the discharge mechanism. By cooperating with the transfer conveyor assembly and the discharge mechanism, the printed battery cells on the printing table of the first printing section are transported to the discharge mechanism. The feeding of the first and second printing sections does not interfere with each other, and the feeding efficiency is high. At the same time, by setting the third transition conveyor line and the transfer conveyor assembly on the second side of the frame in the second horizontal direction, the overall length of the screen printing machine can be further reduced.

[0030] Optionally, the transfer conveying assembly includes a translation drive and a transfer conveying line. The translation drive is mounted on a frame, and the drive end of the translation drive is connected to the transfer conveying line. The translation drive is configured to drive the transfer conveying line to move laterally in a first horizontal direction. The translation drive unit drives the transfer conveyor line to move to a first position close to the first printing section in order to receive the printed battery cells on the corresponding printing table; The translation drive unit drives the transfer conveyor line receiving the solar cells to move to a second position close to the discharge mechanism, so as to transport the received solar cells to the discharge mechanism via the transfer conveyor line.

[0031] By combining the translation drive and the transfer conveyor line, the printed solar cells on the printing table are received and transported to the discharge mechanism, providing a simple, stable and reliable transfer conveyor assembly. Moreover, during the process of the transfer conveyor line moving from the first position to the second position, the transfer conveyor line can transport the received solar cells, improving the transfer efficiency of the solar cells.

[0032] Optionally, the third transition conveyor line includes a first conveyor line, a second conveyor line, and a lifting drive, wherein: The first conveyor line is located below the transfer conveyor line, and the conveying surface of the first conveyor line is lower than the receiving end of the discharge mechanism; The feed end of the second conveyor line is connected to the discharge end of the first conveyor line, and the discharge end of the second conveyor line is connected to the receiving end of the discharge mechanism. The fixed end of the lifting drive is installed on the frame, and the driving end of the lifting drive is connected to the second conveyor line. The lifting drive is configured to drive the second conveyor line to lift.

[0033] By making the second conveyor line liftable, it can avoid the transfer conveyor line; by making the conveying surface of the first conveyor line lower than the receiving end of the discharge mechanism, the installation height of the transfer conveyor line can be reduced, thereby reducing the vertical movement distance of the battery cells during the transfer process and improving the stability of the battery cell conveying. Attached Figure Description

[0034] Figure 1 This is a first-view perspective three-dimensional structural diagram of the screen printing machine proposed in the embodiments of this application; Figure 2 This is a second-view perspective three-dimensional structural diagram of the screen printing machine proposed in the embodiments of this application; Figure 3 This is a schematic diagram of the feeding mechanism and the transfer mechanism of the screen printing machine proposed in the embodiments of this application; Figure 4 This is a three-dimensional structural schematic diagram of the adsorption conveyor line of the screen printing machine proposed in the embodiments of this application; Figure 5 This is a side view schematic diagram of the adsorption conveyor line of the screen printing machine proposed in the embodiments of this application; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; Figure 7 This is a schematic diagram of the structure of the first detection component of the screen printing machine proposed in the embodiments of this application; Figure 8 This is a three-dimensional structural diagram of the printing section of the screen printing machine proposed in the embodiments of this application; Figure 9 This is a three-dimensional structural schematic diagram of the feeding mechanism of the screen printing machine proposed in the embodiments of this application; Figure 10 This is a side view schematic diagram of the feeding mechanism of the screen printing machine proposed in the embodiments of this application; Figure 11 This is a three-dimensional structural schematic diagram of the discharge mechanism of the screen printing machine proposed in the embodiments of this application; Figure 12 This is a schematic diagram of the structure of the diversion and transfer component of the screen printing machine proposed in the embodiments of this application.

[0035] Figures 1 to 12 The following reference numerals are included: Feeding mechanism 10: feeding component 11, conveying mechanism 12, feeding drive mechanism 120, adsorption component 121, feeding conveyor line 13, second transition conveyor line 14, second detection component 15, and sizing component 16; Printing machine 20: Frame 21, Transfer mechanism 22, Adsorption conveyor line 220, First conveyor frame 2200, First conveyor belt 2201, Mounting block 2202, Air blowing end 2203, First transition conveyor line 221, Printing section 23, Mounting frame 24, Printing table 25, Supporting platform 250, First drive mechanism 251, Battery cell translation mechanism 252, Printing mechanism 26, Mounting plate 260, Second drive mechanism 261, Screen assembly 262, Squeegee assembly 263, Support 264, First detection assembly 27, Matrix camera 270, First positioning camera 271; Material unloading mechanism 30: third transition conveyor line 31, first conveyor line 310, second conveyor line 311, lifting drive component 312, transfer conveyor assembly 32, translation drive component 320, transfer conveyor line 321, moving frame 322, material unloading mechanism 33, third conveyor line 330, fourth transition conveyor line 331, fourth conveyor line 332, lifting cylinder 333, first pallet 334, diversion conveyor line 335, transverse drive module 336, lifting drive module 337, second pallet 338. Detailed Implementation

[0036] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] During the production of battery modules, conductive materials need to be printed on the surface of the battery cells to form grid lines for collecting current. The industry typically uses screen printing machines to print these grid lines. However, in existing battery cell printing equipment, the loading and unloading direction of the battery cells is consistent with the printing flow direction, resulting in an excessively long overall length of the printing equipment, which is inconvenient for workshop layout.

[0038] Therefore, this application proposes a screen printing machine, please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 8 As shown, the screen printing machine proposed in this application embodiment includes a feeding mechanism 10, a printing table 20, and a discharging mechanism 30 arranged sequentially. The feeding mechanism 10 is configured to transport the battery cells to be printed to the feeding position; the printing table 20 includes a frame 21, a transfer mechanism 22, and at least two printing sections 23, with the at least two printing sections 23 arranged along a first horizontal direction ( Figure 1 The printing unit 23 includes a mounting frame 24, a printing table 25, and a printing mechanism 26, which are spaced apart on the frame 21 in the X direction. The mounting frame 24 is arranged along the second horizontal direction (in the X direction). Figure 1Extending in the Y direction, the mounting frame 24 is provided with receiving stations, printing stations, and unloading stations spaced apart along the second horizontal direction. Printing tables 25 are movable along the second horizontal direction to the receiving stations, printing stations, and unloading stations on the mounting frame 24. A printing mechanism 26 is positioned above the printing stations and configured to print on the battery cells on the printing tables 25 at the printing stations. The second horizontal direction is perpendicular to the first horizontal direction. A transfer mechanism 22 is mounted on the frame 21 and located at at least two printing stations. Above the printing section 23, the transfer mechanism 22 is configured to pick up the battery cells at the loading position and transport the picked-up battery cells along the first horizontal direction to the receiving station of each printing section 23, and then release them onto the printing table 25 located at the receiving station. The printing table 25 receives the battery cells released by the transfer mechanism 22, transports the received battery cells to the printing station, and transports the printed battery cells to the unloading station. The unloading mechanism 30 is configured to unload the printed battery cells at the unloading station of each printing section 23.

[0039] The screen printing machine proposed in this application sets the mounting frame 24 of the printing section 23 to extend along the second horizontal direction. After the transfer mechanism 22 picks up the battery cell at the loading position, it transports the battery cell along the first horizontal direction to the printing table 25 of the corresponding printing section 23. This makes the flow direction of battery cell loading and unloading perpendicular to the flow direction of battery cell printing, thereby greatly shortening the overall length of the screen printing machine and making it easier to place the equipment in the workshop. Moreover, by setting the transfer mechanism 22 above the printing section 23, the vertical space of the frame is fully utilized, resulting in a compact overall structure and high space utilization.

[0040] In one implementation, the receiving station is located on the first side of the frame 21 in the second horizontal direction, and the printing station and the unloading station are located on the second side of the frame 21 in the second horizontal direction.

[0041] It is evident that by setting up the material receiving station, printing station, and unloading station, the space on both sides of the frame 21 in the second horizontal direction is fully utilized, reducing the space occupied by the equipment and resulting in a reasonable layout.

[0042] Please see Figures 1 to 7As shown, in one embodiment, the transfer mechanism 22 includes two adsorption conveyor lines 220 and a first transition conveyor line 221. Each adsorption conveyor line 220 corresponds to a printing section 23. The adsorption conveyor lines 220 are suspended on the frame 21. Each adsorption conveyor line 220 includes a first conveyor frame 2200, two first conveyor belts 2201, and two adsorption components. The two first conveyor belts 2201 are rotatably mounted on the first conveyor frame 2200 and spaced apart along a second horizontal direction. Each adsorption component corresponds to one first conveyor belt 2201. The adsorption component includes a mounting block 2202, which is mounted on the first... On a conveyor frame 2200, a mounting block 2202 has an air blowing end 2203 extending in a first horizontal direction. The height of the air blowing end 2203 is higher than the lower belt of the first conveyor belt 2201. Air is blown obliquely towards the side of the first conveyor belt 2201 through the air blowing end 2203 to form an adsorption force for adsorbing the battery cells onto the lower belts of the two first conveyor belts 2201. A first transition conveyor line 221 is disposed between two adjacent adsorption conveyor lines 220. The first transition conveyor line 221 is configured to receive the battery cells conveyed by the previous adsorption conveyor line 220 and convey the received battery cells to the subsequent adsorption conveyor line 220.

[0043] Specifically, the feed end of the adsorption conveyor line 220 near the feeding mechanism 10 overlaps with the feeding position (i.e., the projections in the vertical direction partially coincide), and the feed end and discharge end of the first transition conveyor line 221 also overlap with the corresponding two adjacent adsorption conveyor lines 220, so as to facilitate the conveying of the battery cells.

[0044] It can be seen that by cooperating with the two adsorption conveying lines 220 and the first transition conveying line 221, the battery cells are conveyed to each printing section 23 respectively. By setting the adsorption component, an adsorption component based on Bernoulli's principle is provided, which can protect the battery cells while ensuring stable and reliable adsorption and conveying.

[0045] In one implementation, the printing unit 23 further includes a first detection component 27, which is disposed on the frame 21 and located above the receiving station. The first detection component 27 includes a matrix camera 270 and a first positioning camera 271. The first positioning camera 271 is disposed beside the matrix camera 270 and is configured to detect the position information of the printing table 25 at the receiving station to obtain the deviation distance between the actual position and the standard position of the printing table 25 at the receiving station. The matrix camera 270 is configured to detect the position information of the battery cells on the printing table 25 and send the obtained position information to the control system. The control system generates an alignment adjustment strategy based on the obtained position information of the battery cells to align the battery cells on the printing table 25 with the printing mechanism 26 before printing.

[0046] Specifically, the matrix camera 270 includes five cameras, four of which are arranged in a matrix, and the fifth camera is located at the center of the area enclosed by the four cameras in the matrix.

[0047] As can be seen, by setting the first positioning camera 271, the position information of the printing table 25 at the receiving station is automatically detected, and then the printing table 25 is adjusted according to the obtained position information of the printing table 25, so that the printing table 25 at the receiving station is in a standard position, thereby improving the receiving accuracy of the printing table 25; by setting the matrix camera 270, the position information of the battery cells on the printing table 25 at the receiving station is automatically detected, so as to generate an alignment adjustment strategy, so that the battery cells on the printing table 25 are aligned with the printing mechanism 26 before printing, thereby improving the printing accuracy.

[0048] Please see Figure 1 , Figure 2 and Figure 8 As shown, in one embodiment, two sets of printing tables 25 are provided. The first set of printing tables 25 is provided on the first side of the mounting frame 24 in the second horizontal direction, and the second set of printing tables 25 is provided on the second side of the mounting frame 24 in the second horizontal direction. The two sets of printing tables 25 alternately receive the battery cells released by the transfer mechanism 22 from the receiving station, transport the received battery cells to the printing station, and transport the printed battery cells to the unloading station.

[0049] As can be seen, by setting up two sets of printing tables 25, the two sets of printing tables 25 alternately transport the battery cells to the printing station for printing, and alternately transport the printed battery cells to the unloading station, thus realizing the continuous operation of the printing mechanism 26 and improving the printing efficiency of the battery cells; at the same time, by setting the two sets of printing tables 25 on both sides of the mounting frame 24 in the second horizontal direction, the space on both sides of the mounting frame 24 in the second horizontal direction is fully utilized, and the layout is reasonable.

[0050] As one implementation method, continue to refer to Figure 8 The printing table 25 includes a support table 250, a first drive mechanism 251, and a battery cell translation mechanism 252. The support table 250 is configured to support battery cells. The battery cell translation mechanism 252 is disposed on the support table 250 and is configured to drive the battery cells supported on the support table 250 to translate. The drive end of the first drive mechanism 251 is connected to the support table 250 and is configured to drive the support table 250 to translate and lift.

[0051] Specifically, the first drive mechanism 251 includes a horizontal linear module and a vertical linear module. The horizontal linear module and the vertical linear module are mounted to form a dual-axis transfer module. Since both printing tables 25 can be lifted and translated, during operation, the support platforms 250 of the two printing tables 25 can be at different heights in the vertical direction, thereby preventing the support platforms 250 of the two printing tables 25 from colliding or interfering.

[0052] Specifically, the battery cell translation mechanism 252 includes a paper feeding roller, a paper receiving roller, a paper roll, and a paper roll drive assembly. The paper feeding roller is located at the first end of the support platform 250, and the paper receiving roller is located at the second end of the support platform 250. The paper roll is mounted on the paper feeding roller. After being released by the paper feeding roller, the paper roll passes around the surface of the support platform 250 and moves close to the surface of the support platform 250 to be wound onto the paper receiving roller. The paper roll drive assembly is used to drive the paper feeding roller and the paper receiving roller to rotate, thereby causing the paper roll to translate close to the surface of the support platform 250. In this embodiment, the translation direction of the paper roll is the same as the conveying direction of the feeding mechanism 10 and the unloading mechanism 30, and the paper roll drives the battery cells to translate on the support platform 250.

[0053] As can be seen, the carrier platform 250 is driven to move and rise and fall by the cooperation of the first drive mechanism 251 and the battery cell translation mechanism 252, so that the carrier platform 250 can receive the battery cells to be printed from the receiving station, transport the received battery cells to be printed to the printing station, and transport the printed battery cells to the unloading mechanism 30.

[0054] In one embodiment, the printing mechanism 26 includes a mounting plate 260, a second drive mechanism 261, a screen assembly 262, and a squeegee assembly 263. Two support members 264 are spaced apart along a first horizontal direction on the frame 21, and the two ends of the mounting plate 260 along the first horizontal direction are respectively attached to the two support members 264. The second drive mechanism 261 is mounted on the mounting plate 260, and the screen assembly 262 is connected to the drive end of the second drive mechanism 261. The second drive mechanism 261 is configured to drive the screen assembly 262 to translate, lift, and rotate in the horizontal plane to adjust the position of the screen assembly 262. The squeegee assembly 263 is mounted on the screen assembly 262 and is configured to print the material on the screen assembly 262 onto the battery cells at the printing station.

[0055] Specifically, the second drive mechanism 261 is driven by the UVW drive component. Of course, the second drive mechanism 261 can also be driven by an arc motor or a servo motor in conjunction with an arc guide rail and a linear motion module.

[0056] Specifically, the squeegee assembly 263 includes a squeegee driver and a squeegee. The drive end of the squeegee driver is connected to the squeegee. The squeegee driver is configured to drive the squeegee to translate. The second drive mechanism 261 drives the screen assembly 262 to move, so that after the screen assembly 262 is adjusted to be aligned with the battery cell to be printed, the squeegee driver drives the squeegee to translate, so that the printing material is evenly coated onto the screen assembly 262. The printing material coated onto the screen assembly 262 penetrates through the mesh of the screen assembly 262 onto the battery cell to be printed, thereby completing the printing of the battery cell.

[0057] Specifically, depending on the specific printing requirements, the printing materials can be conductive adhesives, grid line pastes, etc.

[0058] As can be seen, by setting two support members 264 on the frame 21 and attaching the two ends of the mounting plate 260 to the two support members 264, the two ends of the mounting plate 260 are supported, thereby avoiding the printing quality from being affected by the deformation of the mounting plate 260 due to falling. Through the cooperation of the second drive mechanism 261, the screen assembly 262 and the squeegee assembly 263, the battery cells on the printing station are printed.

[0059] The general working principle of printing department 23 is as follows: S1, the first drive mechanism 251 drives the carrier platform 250 to move to the receiving station; S2, the carrier platform 250 receives the battery cells to be printed conveyed by the feeding mechanism 10; S3, the first drive mechanism 251 drives the carrier platform 250 and the battery cell to be printed carried by the carrier platform 250 to move to the printing station; S4, the printing mechanism 26 prints the battery cells on the carrier table 250 at the printing station; S5, the first drive mechanism 251 drives the carrier platform 250 carrying the printed battery cells to move from the printing station to the unloading station.

[0060] In one embodiment, the printing mechanism 26 also includes a second positioning camera (not shown in the figure), which is mounted on the side of the printing station, for example, on the edge of the mounting plate 260 or on the support 264. The second positioning camera is configured to detect the position information of the printing table 25 on the printing station to obtain the deviation distance between the actual position of the printing table 25 at the printing station and the standard position.

[0061] As can be seen, by setting up a second positioning camera, the position information of the printing table 25 at the printing station is automatically detected, and then the printing table 25 is adjusted according to the obtained position information, so that the error accumulated by the printing table 25 during long-term movement is corrected and the printing accuracy is improved.

[0062] In one embodiment, the printing mechanism 26 also includes a temperature and humidity control component (not shown in the figure), which includes a housing, a sprayer, and a humidity meter. The housing is mounted on the mounting plate 260, and a space is formed inside the housing to accommodate the movement of the doctor blade assembly 262. The sprayer and the humidity meter are disposed inside the housing. The humidity meter is configured to detect the humidity inside the housing, and the sprayer is configured to spray atomized pure water toward the doctor blade assembly according to the detection result of the humidity meter.

[0063] In actual production, screen printing machines are located in cleanrooms, where temperature and humidity are typically controlled by central air conditioning. However, this method is ineffective, resulting in uneven temperature and humidity distribution throughout the workshop, substandard adjustments, or limitations imposed by equipment requirements preventing the humidity from reaching a specific standard. Therefore, a temperature and humidity control component is installed. A humidity meter detects the humidity inside the enclosure. When the humidity inside the enclosure falls below a preset value, a sprayer sprays atomized pure water onto the squeegee assembly 262 to increase humidity. This ensures the ink on the screen remains in a suitable environment, facilitating the printing of high-quality grid lines and preventing poor printing quality due to ink drying.

[0064] Please see Figure 1 , Figure 3 As shown, in one embodiment, the feeding mechanism 10 includes a feeding assembly 11, a conveying mechanism 12, a feeding conveyor line 13, and a second transition conveyor line 14. The feeding assembly 11 is configured to supply the battery cells to be printed. The conveying mechanism 12 includes a feeding drive mechanism 120 and an adsorption member 121. The drive end of the feeding drive mechanism 120 is connected to the adsorption member 121. The feeding drive mechanism 120 is at least configured to drive the adsorption member 121 to move laterally. The adsorption member 121 is configured to adsorb or release the battery cells to be printed. The feeding drive mechanism 120 drives the adsorption member 121 to a preset position on the feeding assembly 11 to pick up the feeding assembly 11. The battery cells to be printed are driven by the loading drive mechanism 120, which drives the adsorption member 121 and the battery cells adsorbed by the adsorption member 121 to move to a preset position on the loading conveyor line 13, so that the battery cells adsorbed by the adsorption member 121 are released onto the loading conveyor line 13. The loading conveyor line 13 is configured to receive the battery cells released by the adsorption member and convey the received battery cells toward the second transition conveyor line 14. The second transition conveyor line 14 is located on the first side of the frame 21 in the second horizontal direction. The second transition conveyor line 14 is configured to receive the battery cells conveyed by the loading conveyor line 13 and convey the received battery cells to the loading position.

[0065] Specifically, the feeding assembly 11 uses a feeding conveyor line to transport the battery cells to be printed.

[0066] Specifically, the feeding drive mechanism 120 includes at least a transverse linear module, and the adsorption component 121 adopts a Bernoulli suction cup. Of course, the feeding drive mechanism 120 may also include a rotary cylinder. The rotary cylinder is installed at the drive end of the transverse linear module, and the adsorption component 121 is installed at the drive end of the rotary cylinder. During the handling of the battery cells, the rotary cylinder drives the adsorption component 121 to rotate 90°, so that the battery cells adsorbed by the adsorption component 121 can be rotated 90°, so that the direction of the battery cell line marks / the direction of the battery cell printing meets the process requirements.

[0067] It can be seen that, through the cooperation of the feeding assembly 11, the conveying mechanism 12, the feeding conveyor line 13 and the second transition conveyor line 14, the battery cells to be printed are conveyed to the feeding position; at the same time, by setting the second transition conveyor line 14 on the first side of the second horizontal direction of the frame 21, the overall length of the screen printing machine can be further reduced.

[0068] In one embodiment, the feeding mechanism 10 also includes a second detection component 15. A detection station is provided on the conveying path of the feeding conveyor line 13. The second detection component 15 is located above the detection station and is configured to detect whether the battery cells to be printed at the detection station are qualified.

[0069] Specifically, the first inspection component 15 includes a camera that takes pictures of the battery cells at the inspection station to detect whether the battery cells to be printed are qualified.

[0070] It can be seen that by setting the second detection component 15, automatic detection of whether the cells to be printed are qualified is realized during the feeding process of the cells, and then the subsequent printing mechanism is controlled to print only the qualified cells based on the detection results.

[0071] In one embodiment, a sizing station is provided on the conveying path of the second transition conveyor line 14, and the feeding mechanism 10 also includes a sizing component 16, which is configured to size the battery cells to be printed at the sizing station.

[0072] Specifically, the sizing component 16 includes a sizing drive and two rows of sizing wheels spaced apart along a second horizontal direction. The sizing drive drives the two rows of sizing wheels to move closer to each other in order to size the battery cells between the two rows of sizing wheels.

[0073] As can be seen, by setting the straightening component 16, the solar cells conveyed on the second transition conveyor line 14 are straightened to avoid the solar cells from shifting at the loading position.

[0074] The general process of feeding by the feeding mechanism 10 is as follows: S1, the feeding component 11 conveys the battery cell to be printed to the preset position of the feeding component 11; S2, the feeding drive mechanism 120 drives the adsorption member 121 to move directly above the preset position of the feeding assembly 11, and the adsorption member 121 adsorbs the battery cell at the preset position of the feeding assembly 11. S3, the feeding drive mechanism 120 drives the adsorption member 121 and the battery cell adsorbed by the adsorption member 121 to move directly above the feeding conveyor line 13, and the adsorption member 121 releases the adsorbed battery cell onto the feeding conveyor line 13. S4, the feeding conveyor line 13 transports the received solar cells to the second transition conveyor line 14; S5, the second transition conveyor line 14 transports the received solar cells to the loading position.

[0075] In one implementation, two printing units 23 are provided, including a first printing unit located near the feeding mechanism 10 and a second printing unit located near the unloading mechanism 30. The unloading mechanism 30 includes a third transition conveyor line 31, a transfer conveyor assembly 32, and an output mechanism 33. The third transition conveyor line 31 and the transfer conveyor assembly 32 are located on the second side of the frame 21 in the second horizontal direction. The third transition conveyor line 31 is connected to the printing table 25 of the second printing unit and is configured to receive the printed battery cells on the printing table 25 at the unloading station of the second printing unit and convey the received printed battery cells to the output mechanism 33. The transfer conveyor assembly 32 is connected to the printing table 25 of the first printing unit and is configured to receive the printed battery cells on the printing table 25 at the unloading station of the first printing unit and convey the received printed battery cells to the output mechanism 33. The output mechanism 33 is configured to convey the received printed battery cells to the next process.

[0076] As can be seen, through the cooperation of the third transition conveyor line 31 and the discharge mechanism 33, the printed battery cells on the printing table 25 of the second printing section are transported to the discharge mechanism 33. Through the cooperation of the transfer conveyor assembly 32 and the discharge mechanism 33, the printed battery cells on the printing table 25 of the first printing section are transported to the discharge mechanism 33. The unloading actions of the first printing section and the second printing section do not interfere with each other, and the unloading efficiency is high. At the same time, by setting the third transition conveyor line 31 and the transfer conveyor assembly 32 on the second side of the frame 21 in the second horizontal direction, the overall length of the screen printing machine can be further reduced.

[0077] In one embodiment, the transfer conveying assembly 32 includes a translation drive 320 and a transfer conveying line 321. The translation drive 320 is mounted on the frame 21, and the drive end of the translation drive 320 is connected to the transfer conveying line 321. The translation drive 320 is configured to drive the transfer conveying line 321 to move laterally in a first horizontal direction. The translation drive 320 drives the transfer conveying line 321 to move to a first position close to the first printing section to receive the printed battery cells on the corresponding printing table 25. The translation drive 320 drives the transfer conveying line 321, which has received the battery cells, to move to a second position close to the discharge mechanism 33 to transport the received battery cells to the discharge mechanism 33 via the transfer conveying line 321.

[0078] Specifically, the transfer conveyor line 321 is installed on the moving frame 322, and the driving end of the translation drive 320 is connected to the moving frame 322. The translation drive 320 drives the moving frame 322 to move laterally in the first horizontal direction, thereby driving the transfer conveyor line 321 to move laterally.

[0079] Specifically, the translation drive component 320 adopts a linear module.

[0080] As can be seen, by cooperating with the translation drive 320 and the transfer conveyor 321, the printed battery cells on the printing table 25 are received and the received battery cells are conveyed to the discharge mechanism 33, providing a simple structure and a stable and reliable transfer conveyor assembly 32; moreover, during the process of the transfer conveyor 321 moving from the first position to the second position, the transfer conveyor 321 can convey the received battery cells, improving the transfer efficiency of the battery cells.

[0081] In one embodiment, the third transition conveyor line 31 includes a first conveyor line 310, a second conveyor line 311, and a lifting drive 312. The first conveyor line 310 is located below the transfer conveyor line 321, and the conveying surface of the first conveyor line 310 is lower than the receiving end of the discharge mechanism 33. The feeding end of the second conveyor line 311 is connected to the discharge end of the first conveyor line 310, and the discharge end of the second conveyor line 311 is connected to the receiving end of the discharge mechanism 33. The fixed end of the lifting drive 312 is mounted on the frame 21, and the driving end of the lifting drive 312 is connected to the second conveyor line 311. The lifting drive 312 is configured to drive the second conveyor line 311 to lift.

[0082] Specifically, the lifting drive component 312 adopts a linear module.

[0083] It can be seen that by setting the second conveyor line 311 to be liftable, it can avoid the transfer conveyor line 321 and connect with the front and rear conveyor lines; by setting the conveying surface of the first conveyor line 310 to be lower than the receiving end of the discharge mechanism 33, the installation height of the transfer conveyor line 321 can be reduced, thereby reducing the vertical movement distance of the battery cells during the transfer process and improving the stability of the battery cell conveying.

[0084] The general process of the feeding mechanism 30 feeding materials to the first printing section is as follows: S1, the translation drive 320 drives the transfer conveyor 321 to move to the unloading station of the first printing section; S2, the cell translation mechanism 252 transports the printed cells carried by the carrier table 250 on the unloading station of the first printing section to the transfer conveyor line 321. S3, the translation drive 320 drives the transfer conveyor 321 to move to the discharge mechanism 33 (at this time, the second conveyor 311 is in a low position to avoid the transfer conveyor 321). S4, the transfer conveyor 321 transports the received printed battery cells to the discharge mechanism 33.

[0085] It should be noted that the transfer conveyor 321 can transport the received printed battery cells after it has been moved to the discharge mechanism 33, or it can be done during the process of the transfer conveyor 321 moving to the discharge mechanism 33.

[0086] The general process of the feeding mechanism 30 feeding materials to the second printing section is as follows: S1, the cell translation mechanism 252 transports the printed cells carried by the carrier table 250 on the unloading station of the second printing section to the first conveyor line 310. S2, the lifting drive unit 312 first drives the second conveyor line 311 to rise to the same height as the first conveyor line 310, and the first conveyor line 310 conveys the received printed battery cells to the second conveyor line 311. S3, the lifting drive unit 312 then drives the second conveyor line 311 to rise to a height that is flush with the receiving end of the discharge mechanism 33; S4, the second conveyor line 311 transports the received printed battery cells to the discharge mechanism 33.

[0087] Please see Figure 1 , Figure 11 and Figure 12As shown, in one embodiment, the discharge mechanism 33 includes a third conveyor line 330, a fourth transition conveyor line 331, and a fourth conveyor line 332 spaced apart along a first horizontal direction. The conveying axes of the third conveyor line 330, the fourth transition conveyor line 331, and the fourth conveyor line 332 are aligned. The third conveyor line 330 is configured to receive the printed battery cells conveyed by the second conveyor line 311 and the transfer conveyor line 321. The feed end of the fourth transition conveyor line 331 is connected to the third conveyor line 330, and the discharge end of the fourth transition conveyor line 331 is connected to the feed end of the fourth conveyor line 332. The fourth transition conveyor line 331 is configured to receive the battery cells conveyed by the third conveyor line 330 and convey the received battery cells to the fourth conveyor line 332. The fourth conveyor line 332 is configured to receive the battery cells conveyed by the fourth transition conveyor line 331 and convey the received battery cells to the next process.

[0088] In one implementation, the discharge mechanism 33 also includes an inspection camera configured to perform visual inspection on the solar cells conveyed by the third conveyor line 330 to determine whether the printing on the solar cells is qualified.

[0089] In one implementation, a wafer storage assembly is provided on the fourth transition conveyor line 331. The wafer storage assembly includes a lifting cylinder 333 and a first pallet 334. The drive end of the lifting cylinder 333 is connected to the first pallet 334. The lifting cylinder 333 is configured to drive the first pallet 334 to rise and fall. The lifting cylinder 333 drives the first pallet 334 to rise, so as to push a defective printed battery cell off the fourth transition conveyor line 331, so that the defective battery cell can be removed manually or automatically by a handling mechanism; or a battery cell can be buffered and released at an appropriate time.

[0090] In one implementation, the discharge mechanism 33 further includes a diversion conveyor line 335 and a diversion transfer assembly. The diversion conveyor line 335 and the fourth conveyor line 332 are arranged parallel to each other along a second horizontal direction. The diversion transfer assembly includes a lateral movement drive module 336, a lifting drive module 337, and a second pallet 338. The lifting drive module 337 is installed at the drive end of the lateral movement drive module 336 and is configured to drive the lifting drive module 337 to move laterally along the second horizontal direction. The second pallet 338 is installed at the drive end of the lifting drive module 337 and is configured to drive the second pallet 338 to move up and down. Both the diversion conveyor line 335 and the fourth conveyor line 332 include two conveyor lines arranged at intervals along the second horizontal direction. Through the cooperation of the diversion conveyor line 335, the diversion transfer assembly, and the fourth conveyor line 332, the diversion of printed battery cells is realized. Optionally, to improve handling stability, suction holes can be provided on the second pallet 338.

[0091] In the initial state, the diversion and transfer component is located at the fourth conveyor line 332, and the second pallet 338 is located between the two conveyor lines of the fourth conveyor line 332. The second pallet 338 is lower than the conveying surface of the fourth conveyor line 332. The general working principle of the diversion and transfer component is as follows: S1, the lifting drive module 337 drives the second pallet 338 to rise, so as to lift the battery cell on the fourth conveyor line 332 away from the conveying surface of the fourth conveyor line 332 and then carry the battery cell. S2, the transverse drive module 336 drives the second tray 338 and the battery cells carried by the second tray 338 to move directly above the diversion conveyor line 335; S3, the lifting drive module 337 then drives the second tray 338 to descend to a preset height, so that the two ends of the battery cells on the second tray 338 along the second horizontal direction respectively overlap the two conveyor lines of the diversion conveyor line 335. S4, the transverse drive module 336 and the lifting drive module 337 work together to drive the second pallet 338 back to its initial state.

[0092] The screen printing machine proposed in this application has the following advantages: 1) It greatly shortens the overall length of the screen printing machine, making it easier to place the equipment in the workshop; 2) The overall structure is compact and the space utilization rate is high; 3) Each printing station is set up with two sets. The two sets of printing stations alternately transport the battery cells to the printing station for printing and alternately transport the printed battery cells to the unloading station. This realizes continuous operation of the printing mechanism, improves the printing efficiency of the battery cells, and at the same time prevents the interference of moving inertia / resonance caused by too many printing stations, thus improving the printing accuracy. 4) The mounting plate of the printing mechanism is supported by two support members, thereby avoiding the impact on printing quality due to the deformation of the mounting plate due to sagging; 5) Equipped with a temperature and humidity control component, ensuring that the ink on the screen of the squeegee assembly is always in a suitable environment, facilitating printing and avoiding the problem of poor print quality caused by ink drying; 6) The material feeding of the first printing section and the second printing section do not interfere with each other, resulting in high material feeding efficiency.

[0093] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A screen printing machine, characterized in that, The screen printing machine includes a feeding mechanism, a printing table, and a discharging mechanism arranged sequentially, wherein: The feeding mechanism is configured to convey the battery cells to be printed to the feeding position; The printing machine includes a frame, a transfer mechanism, and at least two printing sections. The at least two printing sections are spaced apart on the frame along a first horizontal direction. Each printing section includes a mounting frame, a printing table, and a printing mechanism. The mounting frame extends along a second horizontal direction and has a receiving station, a printing station, and a unloading station spaced apart along the second horizontal direction. The printing table is movable along the second horizontal direction and mounted on the mounting frame to the receiving station, printing station, and unloading station. The printing mechanism is located above the printing station and is configured to print on the battery cells on the printing table at the printing station. The second horizontal direction is perpendicular to the first horizontal direction. The transfer mechanism is disposed on the frame and located above the at least two printing sections. The transfer mechanism is configured to pick up the battery cell at the loading position and transport the picked-up battery cell along the first horizontal direction to the receiving station of each of the printing sections, and then release it to the printing table located at the receiving station. The printing table receives the battery cell released by the transfer mechanism and transports the received battery cell to the printing station, and transports the printed battery cell to the unloading station. The unloading mechanism is configured to unload the printed battery cells at the unloading station of each of the printing sections.

2. The screen printing machine according to claim 1, characterized in that, The receiving station is located on the first side of the frame in the second horizontal direction, and the printing station and the unloading station are located on the second side of the frame in the second horizontal direction.

3. The screen printing machine according to claim 1 or 2, characterized in that, The transfer mechanism includes two adsorption conveying lines and a first transition conveying line, wherein: Each of the adsorption conveyor lines corresponds to one of the printing sections. The adsorption conveyor lines are suspended on the frame and include a first conveyor frame, two first conveyor belts, and two adsorption components, wherein: The two first conveyor belts are rotatably mounted on the first conveyor frame and are spaced apart along the second horizontal direction; Each of the adsorption components corresponds to one of the first conveyor belts. The adsorption component includes a mounting block, which is mounted on the first conveyor frame. The mounting block has an air blowing end extending along the first horizontal direction. The height of the air blowing end is higher than the lower side of the first conveyor belt. Air is blown obliquely toward the side of the first conveyor belt through the air blowing end to form an adsorption force for adsorbing the battery cell onto the lower side of the two first conveyor belts. The first transition conveyor line is disposed between two adjacent adsorption conveyor lines. The first transition conveyor line is configured to receive the battery cells conveyed by the preceding adsorption conveyor line and convey the received battery cells to the subsequent adsorption conveyor line.

4. The screen printing machine according to claim 1, characterized in that, The printing section further includes a first detection component, which is disposed on the frame and located above the receiving station. The first detection component includes a matrix camera and a first positioning camera, wherein: The first positioning camera is located next to the matrix camera and is configured to detect the position information of the printing table at the receiving station in order to obtain the deviation distance between the actual position and the standard position of the printing table at the receiving station. The matrix camera is configured to detect the position information of the battery cells on the printing table and send the acquired position information to the control system. The control system generates an alignment adjustment strategy based on the acquired position information of the battery cells to align the battery cells on the printing table with the printing mechanism before printing.

5. The screen printing machine according to claim 2, characterized in that, The printing table is provided in two sets. The first set of printing tables is located on the first side of the mounting frame in the second horizontal direction, and the second set of printing tables is located on the second side of the mounting frame in the second horizontal direction. The two sets of printing tables alternately receive the battery cells released by the transfer mechanism from the receiving station, transport the received battery cells to the printing station, and transport the printed battery cells to the unloading station.

6. The screen printing machine according to claim 5, characterized in that, The printing table includes a support platform, a first driving mechanism, and a battery cell translation mechanism. The support platform is configured to support battery cells. The battery cell translation mechanism is disposed on the support platform and is configured to drive the battery cells supported on the support platform to translate. The driving end of the first driving mechanism is connected to the support platform and is configured to drive the support platform to translate and move up and down.

7. The screen printing machine according to claim 1, characterized in that, The printing mechanism includes a mounting plate, a second drive mechanism, a screen assembly, and a squeegee assembly, wherein: Two support members are spaced apart along the first horizontal direction on the frame, and the mounting plate overlaps the two support members at both ends along the first horizontal direction. The second drive mechanism is disposed on the mounting plate, and the screen assembly is connected to the drive end of the second drive mechanism. The second drive mechanism is configured to drive the screen assembly to translate, lift, and rotate in the horizontal plane to adjust the position of the screen assembly. The squeegee assembly is disposed on the screen assembly, and the squeegee assembly is configured to print the material on the screen assembly onto the battery cell at the printing station.

8. The screen printing machine according to claim 7, characterized in that, The printing mechanism further includes a second positioning camera, which is installed beside the printing station. The second positioning camera is configured to detect the position information of the printing table at the printing station to obtain the deviation distance between the actual position and the standard position of the printing table at the printing station.

9. The screen printing machine according to claim 7, characterized in that, The printing mechanism also includes a temperature and humidity control component, which comprises a housing, a sprayer, and a humidity meter, wherein: The cover is mounted on the mounting plate, and a space is formed inside the cover to accommodate the movement of the scraper assembly; The sprayer and the humidity sensor are disposed inside the housing. The humidity sensor is configured to detect the humidity inside the housing, and the sprayer is configured to spray atomized pure water toward the scraper assembly according to the detection result of the humidity sensor.

10. The screen printing machine according to claim 2, characterized in that, The feeding mechanism includes a feeding assembly, a conveying mechanism, a feeding conveyor line, and a second transition conveyor line, wherein: The feeding assembly is configured to supply the battery cells to be printed; The conveying mechanism includes a feeding drive mechanism and an adsorption component. The drive end of the feeding drive mechanism is connected to the adsorption component. The feeding drive mechanism is at least configured to drive the adsorption component to move laterally. The adsorption component is configured to adsorb or release the battery cell to be printed. The feeding drive mechanism drives the adsorption component to move to a preset position of the feeding assembly to pick up the battery cell to be printed on the feeding assembly. The feeding drive mechanism drives the adsorption component and the battery cell adsorbed by the adsorption component to move to a preset position of the feeding conveyor line to release the battery cell adsorbed by the adsorption component onto the feeding conveyor line. The feeding conveyor line is configured to receive the battery cells released by the adsorption element and convey the received battery cells toward the second transition conveyor line; The second transition conveyor line is disposed on the first side of the frame in the second horizontal direction. The second transition conveyor line is configured to receive the battery cells conveyed by the loading conveyor line and convey the received battery cells to the loading position.

11. The screen printing machine according to claim 10, characterized in that, The feeding mechanism also includes a second detection component. A detection station is provided on the conveying path of the feeding conveyor line. The second detection component is located above the detection station and is configured to detect whether the battery cell to be printed at the detection station is qualified.

12. The screen printing machine according to claim 2, characterized in that, The printing section is provided in two parts, including a first printing section located near the feeding mechanism and a second printing section located near the unloading mechanism. The unloading mechanism includes a third transition conveyor line, a transfer conveyor assembly, and a discharge mechanism, wherein: The third transition conveyor line and the transfer conveyor assembly are disposed on the second side of the frame in the second horizontal direction; The third transition conveyor line connects to the printing table of the second printing unit. The third transition conveyor line is configured to receive the printed battery cells on the printing table at the unloading station of the second printing unit and convey the received printed battery cells to the unloading mechanism. The transfer conveying assembly docks with the printing table of the first printing unit. The transfer conveying assembly is configured to receive the printed battery cells on the printing table at the unloading station of the first printing unit and convey the received printed battery cells to the unloading mechanism. The discharge mechanism is configured to convey the received printed battery cells to the next process.

13. The screen printing machine according to claim 12, characterized in that, The transfer conveying assembly includes a translation drive and a transfer conveying line. The translation drive is mounted on the frame, and the drive end of the translation drive is connected to the transfer conveying line. The translation drive is configured to drive the transfer conveying line to move laterally along the first horizontal direction. The translation drive drives the transfer conveyor line to move to a first position close to the first printing section in order to receive the printed battery cell on the corresponding printing table; The translation drive unit drives the transfer conveyor line receiving the battery cells to move to a second position close to the discharge mechanism, so as to transport the received battery cells to the discharge mechanism via the transfer conveyor line.

14. The screen printing machine according to claim 13, characterized in that, The third transition conveyor line includes a first conveyor line, a second conveyor line, and a lifting drive component, wherein: The first conveyor line is located below the transfer conveyor line, and the conveying surface of the first conveyor line is lower than the receiving end of the discharge mechanism; The feed end of the second conveyor line is connected to the discharge end of the first conveyor line, the discharge end of the second conveyor line is connected to the receiving end of the discharge mechanism, the fixed end of the lifting drive is mounted on the frame, the driving end of the lifting drive is connected to the second conveyor line, and the lifting drive is configured to drive the second conveyor line to lift.

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