Battery piece printing device

Abstract

The utility model discloses a battery piece printing device, and belongs to the technical field of photovoltaic battery string production equipment. The printing device comprises a printing conveying line, a first printing table, a second printing table and a silk-screen mechanism, a first feeding and discharging station, a printing station and a second feeding and discharging station are sequentially arranged on the first side of the printing conveying line, and the first printing table, the silk-screen mechanism and the second printing table are sequentially arranged on the first side in the conveying direction of the printing conveying line. The silk-screen mechanism is located at the printing station, the first printing table moves back and forth between the first feeding and discharging station and the printing station, the second printing table moves back and forth between the second feeding and discharging station and the printing station, the two printing tables alternately move to the printing station to be matched with the silk-screen mechanism to print battery pieces, and in this way, the printing rhythm is accelerated.

Description

Technical Field

[0001] The embodiments of this application relate to the field of photovoltaic cell string production equipment technology, and more specifically, this application relates to a cell printing apparatus. Background Technology

[0002] In the processing and production of solar cells, screen printing is required to print paste onto the surface of the cell to form grid lines, thereby creating the electrodes. Existing solar cell printing equipment typically includes four printing stations and one printing mechanism. Each printing station carries one solar cell, and the four printing stations alternately carry the cells in a cyclical manner, with the printing mechanism printing one cell at a time. It is evident that existing solar cell printing equipment is only suitable for processing single, complete solar cells (i.e., full cells) in small quantities, and is not suitable for processing large batches of solar cells, especially half cells, which are twice the number of full cells. If existing solar cell printing equipment is still used for printing, the printing cycle will increase significantly. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application provides a solar cell printing apparatus capable of increasing the printing speed of solar cells and shortening the printing cycle for batches of solar cells.

[0004] To solve the above problems, the technical solution adopted in this application is as follows:

[0005] This application provides an example of a battery cell printing apparatus, including a printing conveyor line, a first printing table, a second printing table, and a screen printing mechanism. A first loading / unloading station, a printing station, and a second loading / unloading station are sequentially arranged on a first side of the printing conveyor line. The first printing table, the screen printing mechanism, and the second printing table are sequentially arranged on the first side of the printing conveyor line along the conveying direction, with the screen printing mechanism located at the printing station. The first printing table reciprocates between the first loading / unloading station and the printing station, and the second printing table reciprocates between the second loading / unloading station and the printing station. Both the first and second printing tables are used to carry the battery cells to be printed and alternately move to the printing station. The screen printing unit prints the battery cells to be printed at the printing station. The battery cell printing device also includes a first transfer mechanism and a second transfer mechanism. The first transfer mechanism is used to transport the battery cells to be printed on the printing conveyor line to the first printing table located at the first loading and unloading station. At the same time, the first printing table located at the first loading and unloading station outputs the printed battery cells to the printing conveyor line. The second transfer mechanism is used to transport the battery cells to be printed on the printing conveyor line to the second printing table located at the second loading and unloading station. At the same time, the second printing table located at the second loading and unloading station outputs the printed battery cells to the printing conveyor line.

[0006] The battery cell printing apparatus provided in this application has a first loading / unloading station, a printing station, and a second loading / unloading station arranged sequentially on the first side of the printing conveyor line. A first printing table, a screen printing mechanism, and a second printing table are arranged sequentially on the first side along the conveying direction of the printing conveyor line, with the screen printing mechanism located at the printing station. The first printing table moves back and forth between the first loading / unloading station and the printing station, and the second printing table moves back and forth between the second loading / unloading station and the printing station. The two printing tables alternately move to the printing station to cooperate with the screen printing mechanism to print the battery cells. This method speeds up the printing pace.

[0007] In some instances, the screen printing mechanism described above includes at least two screen printing components, with a first printing table and a second printing table carrying a set of battery cells to be printed. When the first or second printing table is in the printing station, all screen printing components perform simultaneous printing, and each screen printing component corresponds to one battery cell to be printed during each simultaneous printing.

[0008] The screen printing mechanism includes at least two screen printing components. When the first printing table and the second printing table move to the printing station, all screen printing components simultaneously perform printing. A group of battery cells received by the first printing table and the second printing table can be printed quickly. Therefore, the battery cell printing device of this application has a faster printing pace, which helps to shorten the printing cycle of the entire batch of battery cells.

[0009] In some instances, the screen printing mechanism described above includes two screen printing assemblies. A set of battery cells to be printed includes four battery cells. During simultaneous printing, the two screen printing assemblies correspond to two of the four battery cells, with a gap of one battery cell between the two battery cells. After the first simultaneous printing of two battery cells is completed, the first or second printing stage moves the two battery cells to be printed directly below the two screen printing assemblies and performs a second simultaneous printing.

[0010] By using two screen printing assemblies, printing can be performed simultaneously in two separate steps, thus completing the printing process for four battery cells. Furthermore, when printing simultaneously, the two screen printing assemblies are positioned to print two battery cells spaced apart. This spacing between the two screen printing assemblies avoids affecting the printing quality of the battery cells due to close proximity between them.

[0011] In some instances, a shooting and positioning mechanism is installed above both the first and second printing tables. The shooting and positioning mechanism is used to determine the position information of the battery cell to be printed. The screen printing mechanism adjusts the position of the printing screen based on the position information to align with the corresponding battery cell.

[0012] The shooting positioning facilitates accurate printing of battery cells by the screen printing components.

[0013] In some embodiments, the cell printing apparatus further includes a cell conveying line and a transport mechanism. The cell conveying line is used to transport cells, and the cells on the cell conveying line are arranged side by side along the conveying direction. The cells on the printing conveying line are arranged sequentially along the same conveying direction. The end of the cell conveying line and the printing conveying line is located adjacent to the beginning of the conveying line of the other. The transport mechanism moves alternately to the end of the conveying line and the beginning of the conveying line. When moving to the end of the conveying line, the transport mechanism picks up at least two cells located at the end of the conveying line. When moving to the beginning of the conveying line, the transport mechanism releases the at least two cells that have been picked up to the beginning of the conveying line.

[0014] The printing conveyor line is used to load the cells to be printed for printing and to unload the printed cells. The printing conveyor line is equipped with connecting cell conveyor lines and handling mechanisms to facilitate coordination with other processes.

[0015] In some embodiments, the cell conveying line includes a feeding conveyor line and a conveying mechanism including a first conveying mechanism. The end of the feeding conveyor line is located near the beginning of the printing conveyor line. The first conveying mechanism moves alternately at the end of the feeding conveyor line and the beginning of the printing conveyor line. When moving to the end of the feeding conveyor line, the first conveying mechanism picks up at least two cells arranged side by side at the end of the feeding conveyor line. When moving to the beginning of the printing conveyor line, the first conveying mechanism releases the at least two cells that have been picked up to the beginning of the printing conveyor line. The at least two cells are arranged sequentially along the conveying direction at the beginning of the printing conveyor line.

[0016] The feeding conveyor line transports parallel-arranged solar cells, and when they are transferred to the printing conveyor line, the first handling mechanism reverses the parallel-arranged solar cells into single-cell sequentially arranged solar cells. The conveying rhythm is relatively fast, and a single reversal and handling realizes the convergence of multiple solar cells, which helps to improve the printing rhythm of solar cells.

[0017] In some embodiments, the cell conveying line includes an unloading conveying line, and the conveying mechanism includes a second conveying mechanism. The beginning of the unloading conveying line is located near the end of the printing conveying line. The second conveying mechanism moves alternately between the end of the printing conveying line and the beginning of the unloading conveying line. When moving to the end of the printing conveying line, the second conveying mechanism picks up at least two cells that are arranged sequentially at the end of the printing conveying line. When moving to the beginning of the unloading conveying line, the second conveying mechanism releases the at least two cells that have been picked up to the beginning of the unloading conveying line. The at least two cells are arranged side by side at the beginning of the unloading conveying line.

[0018] The unloading conveyor transports parallel-arranged solar cells. When the cells are transferred to the printing conveyor for unloading and handling, the second handling mechanism changes the direction of the sequentially arranged solar cells to parallel arrangement. This method allows for faster unloading of printed solar cells, and a single reversal of the handling process diverts multiple solar cells, which helps to shorten the overall processing cycle of the solar cell printing process.

[0019] In some instances, the conveying mechanism described above includes a rotary drive and at least two conveying units mounted on and driven by the rotary drive to move. The conveying units are used to acquire at least two battery cells from the end of the conveying process. After acquiring a battery cell in one of the conveying units, the rotary drive drives the conveying unit to rotate and move to the beginning of the conveying process to release the battery cell.

[0020] The configuration of at least two transport sections speeds up the transport of battery cells from the loading conveyor line to the printing conveyor line (and from the printing conveyor line to the unloading conveyor line), thereby improving production efficiency.

[0021] In some instances, a rotary drive drives each transport unit to move circumferentially in a horizontal plane, so that each transport unit moves sequentially from the end of the transport to the beginning of the transport.

[0022] The circular motion of the transport unit within a plane facilitates the alternating transport of solar cells. This method of movement only requires both the beginning and end points to be located along the circular path of the transport unit to achieve cell transport.

[0023] In some instances, the conveying mechanism includes four conveying sections, which are equally spaced circumferentially. When one conveying section moves to the end of the conveying process, another conveying section moves to the beginning of the conveying process.

[0024] The four transport sections are evenly spaced. Each time, the rotary drive rotates the transport section 90° in the plane, ensuring that one transport section is always at the beginning releasing the solar cells while another is at the end acquiring them. The solar cell acquisition and release actions of the two transport sections are synchronized, thus accelerating the transport rhythm and improving efficiency.

[0025] In some instances, the screen printing mechanism also includes a lifting support, a mounting plate, a screen printing assembly, and a balancer. The lifting support is located at the printing station and includes a lifting drive end. The mounting plate is disposed at the lifting drive end. The screen printing assembly is mounted on the mounting plate and close to the first end of the mounting plate. The screen printing assembly is used to perform screen printing on the battery cells located below the screen printing assembly. The balancer is mounted on the second end of the mounting plate. The first end and the second end of the mounting plate are located on opposite sides of the lifting drive end, respectively. The balancer is used to apply a vertically downward force to the second end of the mounting plate to balance the gravity applied by the screen printing assembly to the first end of the mounting plate.

[0026] Electromagnetic balancers help balance the downward tilting force of the screen printing assembly at one end of the mounting plate, ensuring that the mounting plate and screen printing assembly remain relatively stable and level, thereby ensuring the printing quality of the solar cells.

[0027] In some examples, both the first and second transfer mechanisms include a bracket, a mounting component, a transmission component, a belt, and multiple air nozzles. The bracket is positioned above the printing conveyor line, and its lower surface has a groove extending from above the printing conveyor line towards a first side. The mounting component is positioned within the groove, and slits are formed on the opposing inner walls of the mounting component and the groove on both sides. The transmission component is positioned at both ends of the bracket. The belt is fitted onto the transmission component and driven by it, and travels along the lower surface of the mounting component, positioned between the two slits. Multiple air nozzles are positioned on the bracket and arranged in two rows along the extension direction of the groove. Each row of air nozzles corresponds to one of the two slits, and the two rows of air nozzles are configured as multiple independent groups along the extension direction of the groove. Each group includes two rows of a predetermined number of air nozzles. The air nozzles can controllably inject airflow at a predetermined pressure into the slits to attract the battery cells below the air nozzles onto the belt, and the attracted battery cells move under the drive of the belt.

[0028] The first and second transfer mechanisms utilize air blowing through a slit to create a negative pressure directly beneath the belt, thereby adsorbing the battery cells. As the belt moves laterally, the battery cells are transported from the printing conveyor line to the first and second printing tables. Furthermore, multiple independent air nozzles allow for adjustment of their positions based on the lateral movement of the battery cells, ensuring stable adsorption and preventing accidental adsorption of already printed battery cells.

[0029] In some examples, both the first and second printing tables include guide rails, mounting plates, drive components, and paper rewinders. The mounting plate is mounted on the guide rails and driven by the drive components to achieve reciprocating motion. The paper rewinder is mounted on the mounting plate and is covered with rolls of paper. The rolls of paper are unwound and rewound by the drive of the paper rewinder. The direction of movement of the rolls of paper during unwinding and rewinding is perpendicular to the conveying direction of the printing conveyor line. During unwinding, the printed battery cells located on the rolls of paper move from the paper rewinder to the printing conveyor line. At least one lifting conveyor mechanism is provided on one side of both the first and second loading / unloading stations. The lifting conveyor mechanisms are located below the printing conveyor line and arranged along the conveying direction of the printing conveyor line. The lifting conveyor mechanism is used to contact a battery cell, and each lifting conveyor mechanism includes a lifting drive, a lifting plate, a tensioning wheel, and a lifting belt. The lifting plate has a vertical mounting surface, and the tensioning wheel is mounted on the mounting surface. The lifting belt is sleeved on the tensioning wheel, and the belt has at least two support parts in the direction perpendicular to the printing conveyor line. The lifting drive first drives the lifting plate to rise so that the support parts pass through the conveyor surface of the printing conveyor line to contact and lift the battery cell to be printed. The first transfer mechanism and the second transfer mechanism pick up the raised battery cell to be printed. The support parts then receive the printed battery cell based on the unwinding action driven by the paper roll machine and descend to place the printed battery cell onto the printing conveyor line.

[0030] The lifting and conveying mechanism enables the first and second transfer mechanisms to stably adsorb the battery cells, and facilitates the transfer of printed battery cells from the first and second printing tables to the printing conveyor line. A tension wheel is installed on the lifting plate, and a lifting belt is fitted onto it. The belt has at least two support sections in a direction perpendicular to the printing conveyor line. This allows the support sections to pass through the conveyor surface of the printing conveyor line to raise the battery cells when the lifting plate is driven to rise. The raising of the support sections also facilitates the adsorption of the battery cells to be printed by the first and second transfer mechanisms, and the unwinding and discharge of the printed battery cells by the paper winding machine. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a battery cell printing apparatus provided in an embodiment of this application;

[0032] Figure 2 for Figure 1 A schematic diagram of the battery cell printing device omitting the screen printing mechanism, the first shooting positioning mechanism, and the second shooting positioning mechanism;

[0033] Figure 3 This is a schematic diagram of the first handling mechanism handling battery cells between the end of the feeding conveyor line and the beginning of the printing conveyor line;

[0034] Figure 4 This is a schematic diagram of the first handling mechanism;

[0035] Figure 5 This is a schematic diagram of the screen printing mechanism from a first-view perspective.

[0036] Figure 6 This is a schematic diagram of the screen printing mechanism from a second-view perspective.

[0037] Figure 7 This is a schematic diagram showing the arrangement of the first transfer mechanism and the first lifting and conveying mechanism;

[0038] Figure 8 for Figure 7 A schematic diagram of the first transfer mechanism from a first-person perspective;

[0039] Figure 9 for Figure 7 A schematic diagram of the first transfer mechanism from a second-view perspective;

[0040] Figure 10 for Figure 7 A schematic diagram of the first lifting and conveying mechanism.

[0041] In the picture:

[0042] 100. Printing conveyor line; 200. Loading conveyor line; 300. Unloading conveyor line;

[0043] 410. First printing table; 420. Second printing table; 411. Guide rail; 412. Support plate; 413. Paper winding machine;

[0044] 500. Screen printing mechanism; 510. Lifting support; 520. Mounting plate; 521. First end; 522. Second end; 530. Screen printing assembly; 531. Printing screen; 532. Squeegee; 540. Balancer;

[0045] 610. First shooting and positioning mechanism; 620. Second shooting and positioning mechanism;

[0046] 710. First transfer mechanism; 720. Second transfer mechanism; 711. Support; 711a. Slit; 712. Mounting component; 713. Transmission component; 714. Belt; 715a. First exhaust nozzle; 715b. Second exhaust nozzle;

[0047] 810. First conveying mechanism; 820. Second conveying mechanism; 811. Rotary drive component; 812. Conveying unit; 812a. Lifting component; 812b. Picking component;

[0048] 910. First lifting and conveying mechanism; 920. First lifting and conveying mechanism; 911. Lifting drive component; 912. Lifting plate; 913. Tensioning wheel; 914. Lifting belt; 915. Support unit. Detailed Implementation

[0049] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0050] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, this embodiment provides a battery cell printing apparatus, which includes a printing conveyor line 100, a first printing table 410, a second printing table 420, a screen printing mechanism 500, a first transfer mechanism 710 and a second transfer mechanism 720.

[0051] Continue to refer to Figure 1 , Figure 2 As shown, the battery cells to be printed are conveyed along the conveying direction on the printing conveyor line 100. On the first side of the printing conveyor line 100, a first loading / unloading station, a printing station, and a second loading / unloading station are sequentially arranged along the conveying direction. A first printing table 410, a screen printing mechanism 500, and a second printing table 420 are sequentially arranged on the first side of the printing conveyor line 100 along the conveying direction, with the screen printing mechanism 500 located at the printing station. The first printing table 410 moves back and forth between the first loading / unloading station and the printing station, and the second printing table 420 moves back and forth between the second loading / unloading station and the printing station. Both the first printing table 410 and the second printing table 420 are used to carry the battery cells to be printed and move alternately to the printing station. The battery cells to be printed are carried and moved to the printing station along with the first printing table 410 and the second printing table 420.

[0052] The screen printing unit 500 prints on the battery cells to be printed at the printing station. Specifically, the screen printing unit 500 typically has a printing screen 531 and a squeegee 532. The graphic portion of the printing screen 531 has mesh openings, which are pre-coated with paste. When the battery cell to be printed is located directly below the printing screen 531 at the printing station, the squeegee 532 scrapes the printing screen 531, and the paste is squeezed from the mesh openings of the printing screen 531 onto the battery cell by the squeegee 532, thus completing the grid line printing of the battery cell.

[0053] The first transfer mechanism 710 is used to transport the battery cells to be printed on the printing conveyor line 100 to the first printing table 410 located at the first loading and unloading station, and at the same time, the first printing table 410 located at the first loading and unloading station outputs the printed battery cells to the printing conveyor line 100; similar to the first transfer mechanism 710, the second transfer mechanism 720 is used to transport the battery cells to be printed on the printing conveyor line 100 to the second printing table 420 located at the second loading and unloading station, and at the same time, the second printing table 420 located at the second loading and unloading station outputs the printed battery cells to the printing conveyor line 100.

[0054] In this embodiment, the two printing tables of the battery cell printing device move alternately to the printing station to cooperate with the screen printing mechanism 500 to print the battery cells. The battery cell printing device in this embodiment speeds up the printing pace and helps to shorten the printing cycle of batch battery cells.

[0055] The following, in conjunction with the accompanying drawings, provides further examples of the implementation of each structural component in the battery cell printing apparatus.

[0056] The screen printing mechanism 500 of the above embodiments is further described below.

[0057] Combination Figure 1 , Figure 5 and Figure 6 As shown, in a specific implementation, the screen printing mechanism 500 described above may include at least two screen printing components 530 arranged in parallel. The first printing table 410 and the second printing table 420 carry a group of battery cells to be printed and move alternately to the printing station. The arrangement direction of the two, three or more screen printing components 530 is the same as the arrangement direction of the multiple battery cells to be printed on the first printing table 410 and the second printing table 420. When the first printing table 410 and the second printing table 420 move to the printing station, all screen printing components 530 perform printing simultaneously. Each time printing is performed simultaneously, each screen printing component 530 corresponds to one battery cell to be printed, thereby ensuring that multiple screen printing components 530 simultaneously print multiple corresponding battery cells. In this way, a group of battery cells to be printed can be printed quickly. Therefore, the battery cell printing device of this application has a faster printing rhythm, which helps to shorten the printing cycle of the entire batch of battery cells. It is understandable that when all screen printing components 530 are printed simultaneously, each simultaneous printing can be performed on multiple consecutively arranged battery cells to be printed, as long as the arrangement direction and position of the screen printing components 530 correspond to the multiple consecutively arranged battery cells to be printed.

[0058] Continue to refer to Figure 1 , Figure 5 and Figure 6As shown, for a screen printing mechanism 500 equipped with two screen printing components 530, for example, the aforementioned set of battery cells to be printed may include four battery cells. The two screen printing components 530 can be used to perform simultaneous printing in two separate steps. Each simultaneous printing process involves printing two adjacent or non-adjacent battery cells, thereby completing the printing process for all four battery cells. Specifically, in Figure 5-6 In this process, the two screen printing components 530 correspond to two of the four battery cells when printing simultaneously, and there is a gap of one battery cell between the two battery cells corresponding to the screen printing components 530. In this way, the two screen printing components 530 can be arranged at intervals (the gap is approximately corresponding to one battery cell), which can avoid the screen printing components 530 being too close to affect the printing quality of the battery cells. After the first simultaneous printing of two battery cells is completed, the printing table (first printing table 410 or second printing table 420) carrying the set of battery cells to be printed moves the other two battery cells to be printed directly below the two screen printing components 530 and realizes the second simultaneous printing.

[0059] Continue to combine Figure 1 , Figure 5 and Figure 6As shown, to prevent the screen printing mechanism from tilting relative to the battery surface and affecting the printing quality of the battery cell, the screen printing mechanism 500 in this embodiment further includes a lifting support 510, a mounting plate 520, a screen printing assembly 530, and a balancer 540. The lifting support 510 is located at the printing station and includes a lifting drive end. The mounting plate 520 is disposed at the lifting drive end. Relative to the battery cell to be printed at the printing station, the lifting support 510 drives the mounting plate 520 to raise or lower its height, thereby adjusting the distance between the mounting plate 520 and the battery cell to be printed. The screen printing assembly 530 is mounted on the mounting plate 520 and close to the first end 521 of the mounting plate 520. The screen printing assembly 530 thus moves up and down with the mounting plate 520. In this embodiment, the screen printing assembly 530 is used to perform screen printing on the battery cells located below the screen printing assembly 530. Specifically, the screen printing assembly 530 includes the aforementioned printing screen 531 and squeegee 532. The printing screen 531 and squeegee 532 are positioned close to the first end 521 of the mounting plate 520 (relative to the second end 522). The printing screen 531 is hung below the mounting plate 520. The squeegee 532 is correspondingly set on the mounting plate 520 with the printing screen 531. The correspondingly set printing screen 531 and squeegee 532 perform corresponding actions to print on the battery cells. A balancer 540 is installed at the second end 522 of the mounting plate 520. The first end 521 and the second end 522 of the mounting plate 520 are located on opposite sides of the lifting drive end, respectively. The balancer applies a vertically downward force to the second end 522 of the mounting plate 520 to balance the gravity exerted by the screen printing assembly 530 on the first end 521 of the mounting plate 520. Since the gravity of the screen printing assembly 530 can easily cause the mounting plate 520 to deflect around the support point of the lifting drive end, causing the first end 521 of the mounting plate 520 to tilt downwards, the balancer 540 in this embodiment helps to ensure that the mounting plate 520 and the screen printing assembly 530 remain relatively stable and horizontal, thereby ensuring the printing quality of the battery cells.

[0060] For example, the fixed end of the lifting support 510 is disposed on the side wall of the support base, and the two lifting support 510s are respectively disposed on the opposite two outer side walls of the support base. The mounting plate 520 has a first side and a second side. The first side is connected to the lifting drive end of one lifting support 510, and the second side is connected to the lifting drive end of the other lifting support 510. The lifting support 510s disposed on the first side and the second side can more stably support and drive the mounting plate 520 to lift, thereby driving the screen printing assembly 530 to lift. After the screen printing assembly 530 descends to a suitable height, the screen printing assembly 530 performs screen printing on the battery cells.

[0061] For example, the balancer 540 is at least one electromagnetic balancer, with one end connected to the second end 522 of the mounting plate 520 and the other end connected to the support base. The electromagnetic balancer balances the gravity exerted on the first end 521 of the mounting plate 520 by the screen printing assembly 530 based on electromagnetic force. The electromagnetic balancer includes a permanent magnet and an electromagnetic coil arranged opposite each other, one of which is mounted on the mounting plate 520 and the other is mounted on the support base; or, the electromagnetic balancer includes two electromagnetic coils arranged opposite each other, one of which is mounted on the mounting plate 520 and the other is mounted on the support base. The opposite arrangement of the permanent magnet and the electromagnetic coil has a large magnetic attraction force after being energized, which balances the downward deflection of the mounting plate 520 caused by the screen printing assembly 530; the two electromagnetic coils have the same effect. It is understandable that the balancer 540 is not limited to the aforementioned electromagnetic balancer, but can also be a mechanical balancer. The mechanical balancer is based on mechanical force to balance the downward deflection of the mounting plate 520 by the silk screen component 530. The mechanical force can be tension, pressure, elasticity, gravity, etc.

[0062] Reference Figure 1 As shown, in some examples, a first shooting and positioning mechanism 610 is provided above the first loading and unloading station to shoot and position the first printing table 410 at the first loading and unloading station, thereby determining the position information of the battery cell to be printed on the first printing table 410; a second shooting and positioning mechanism 620 is provided above the first loading and unloading station to shoot and position the second printing table 420 at the second loading and unloading station, thereby determining the position information of the battery cell to be printed on the second printing table 420. Both the first shooting and positioning mechanism 610 and the second shooting and positioning mechanism 620 are used to determine the position information of the battery cell to be printed. The screen printing mechanism 500 adjusts the position of the printing screen 531 based on the position information to align with the corresponding battery cell, facilitating accurate printing of the battery cell by the screen printing assembly 530. It can be understood that the first shooting and positioning mechanism 610 can be positioned on and above the first printing table 410 to perform shooting and positioning, and the second shooting and positioning mechanism 620 can be positioned on and above the second printing table 420 to perform shooting and positioning.

[0063] Reference Figure 1 , Figure 2 , Figure 3As shown, in order to facilitate the feeding of the battery cells to be printed to the first printing table 410 and the second printing table 420, and to facilitate the unloading and continued conveying of the printed battery cells from the first printing table 410 and the second printing table 420, the aforementioned printing conveyor line 100 is configured in this embodiment. In some embodiments, the printing conveyor line 100 is also configured with a battery cell conveyor line and a handling mechanism connected to it, so as to facilitate the coordination between the battery cell printing process and other processes.

[0064] Specifically, the solar cell printing apparatus, in its implementation, is further equipped with a solar cell conveyor line and a transport mechanism. The solar cell conveyor line is used to transport solar cells, and the solar cells on the conveyor line are arranged side by side along the conveying direction. The solar cells on the printing conveyor line 100 are arranged sequentially along the same conveying direction. The end of the conveying line of the solar cell conveyor line and the beginning of the printing conveyor line 100 are located adjacent to the beginning of the conveying line of the other. The transport mechanism alternately moves to the end of the conveying line and the beginning of the conveying line. When moving to the end of the conveying line, the transport mechanism picks up at least two solar cells located at the end of the conveying line. When moving to the beginning of the conveying line, the transport mechanism releases the at least two picked-up solar cells to the beginning of the conveying line. It can be understood that the beginning of the conveying line and the end of the conveying line are two relative positions of the conveyor line in the conveying direction. The beginning of the conveying line is the starting point of the conveying process, and the end of the conveying line is the ending point of the conveying process.

[0065] The following describes in detail specific embodiments, using different battery cell conveying lines (feeding conveyor line 200 and unloading conveyor line 300), the specific implementation of conveying the battery cells to be printed and feeding them into the printing conveyor line 100, receiving the battery cells unloaded from the printing conveyor line 100 (i.e. the battery cells that have been printed) and conveying them to the next process.

[0066] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown, the feeding conveyor 200, which supplies material to the printing conveyor line 100, transports the battery cells to be printed. In specific implementations, a corresponding handling mechanism (e.g., a first handling mechanism 810) is configured for this purpose. The feeding conveyor 200 transports the battery cells arranged in parallel. Figure 1 , Figure 2 , Figure 3(This illustrates a method of conveying two battery cells side-by-side.) The first conveying mechanism 810 transfers the side-by-side battery cells to the printing conveyor line 100. Specifically, the end of the loading conveyor line 200 is located near the beginning of the printing conveyor line 100. The first conveying mechanism 810 alternately moves to the end of the loading conveyor line 200 and the beginning of the printing conveyor line 100. When the first conveying mechanism 810 moves to the end of the loading conveyor line 200, it picks up two battery cells that are side-by-side at the end of the loading conveyor line 200. When the first conveying mechanism 810 moves to the beginning of the printing conveyor line 100, it releases the two picked-up battery cells to the beginning of the printing conveyor line 100. The two battery cells are arranged one by one along the conveying direction of the printing conveyor line 100 at the beginning of the printing conveyor line 100.

[0067] In the example of the above configuration of the feeding conveyor line 200 and the first conveying mechanism 810, the first conveying mechanism 810 picks up the parallel-arranged battery cells from the feeding conveyor line 200 and reverses them to make them arranged one by one on the printing conveyor line 100. The battery cell flow speed is faster, which helps to improve the printing rhythm of the battery cells. It is understandable that the solar cells conveyed by the feeding conveyor line 200 are not limited to two cells arranged side by side, but can also be three or more cells arranged side by side. In specific implementation, the feeding conveyor line can be two, three or more conveyor lines set up in parallel, with the solar cells conveyed on each conveyor line arranged in a one-to-one correspondence. In this way, two, three or more solar cells can be conveyed in parallel. Correspondingly, the first handling mechanism 810 can pick up a group of solar cells from the parallel conveyor lines. This group of solar cells includes one solar cell located on each conveyor line, that is, picking up two, three or more parallel solar cells. When the cells are transported to the printing conveyor line 100, the parallel solar cells are reversed to single solar cells arranged in sequence, completing the convergence.

[0068] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown, for the unloading conveyor line 300, which receives the printed battery cells unloaded from the printing conveyor line 100, this example configures a corresponding conveying mechanism (e.g., a second conveying mechanism 820) between the printing conveyor line 100 and the unloading conveyor line 300. The unloading conveyor line 300 conveys the battery cells arranged in parallel. Figure 1 , Figure 2 , Figure 3(This illustrates a method of conveying two battery cells side by side). The second conveying mechanism 820 transfers the battery cells on the printing conveyor line 100 to the unloading conveyor line 300 so that the printed battery cells can continue to be conveyed to the next process. Specifically, the starting end of the unloading conveyor line 300 is located near the ending end of the printing conveyor line 100. The second transport mechanism 820 moves alternately between the ending end of the printing conveyor line 100 and the starting end of the unloading conveyor line 300. When the second transport mechanism 820 moves to the ending end of the printing conveyor line 100, it picks up two battery cells arranged sequentially at the ending end. When the second transport mechanism 820 moves to the starting end of the unloading conveyor line 300, it releases the two picked-up battery cells to the starting end of the unloading conveyor line 300, where the two battery cells are arranged side by side. This method of unloading printed battery cells results in a faster transport rhythm, which helps to shorten the overall processing cycle of the battery cell printing process. Similar to the aforementioned feeding conveyor line 200, the unloading conveyor line 300 can also be two, three or more conveyor lines arranged in parallel to transport two, three or more battery cells in parallel. The second handling mechanism 820 picks up two, three or more battery cells arranged in sequence and releases them to the beginning of the unloading conveyor line 300. After release, the two, three or more battery cells are converted into a parallel arrangement, thus being transported in parallel on the unloading conveyor line 300.

[0069] The detailed structure of the transport mechanisms (e.g., the first transport mechanism 810 and the second transport mechanism 820) of the above embodiments will be further described below with reference to the accompanying drawings.

[0070] Reference Figures 1 to 4As shown, both the first conveying mechanism 810 and the second conveying mechanism 820 include a rotary drive 811 and at least two conveying sections 812. The conveying sections 812 are mounted on the rotary drive 811 and moved by it. The conveying sections 812 are used to pick up at least two battery cells from the end of the conveying process. The rotary drive 811 is used to drive the conveying section 812 to rotate and move to the beginning of the conveying process after one conveying section 812 has picked up a battery cell, and then release the battery cell. This example uses at least two conveying sections 812, which speeds up the conveying rhythm of battery cells from the loading conveyor line 200 to the printing conveyor line 100 (and from the printing conveyor line 100 to the unloading conveyor line 300). The rotation angle of the rotating drive unit 811 driving the transport unit 812 to rotate can also be set to a corresponding angle according to the relative position of the loading conveyor line 200 and the printing conveyor line 100 (the relative position of the printing conveyor line 100 and the unloading conveyor line 300), such as 30°, 70°, 90°, 100°, etc. This angle is determined according to the arrangement position of the loading conveyor line 200 (or the unloading conveyor line 300) and the printing conveyor line 100, as well as the position of the transport unit 812 in acquiring and releasing the battery cells.

[0071] For example, the rotary drive 811 drives each transport unit 812 to move circumferentially in a horizontal plane, so that each transport unit 812 moves sequentially from the end of the transport to the beginning of the transport. The rotary drive 811 drives each transport unit 812 to move circumferentially, and the path of this circumferential movement is in a horizontal plane. This circumferential movement in a horizontal plane allows each transport unit 812 to move from the end of the transport (e.g., the end of the loading conveyor line 200, the end of the printing conveyor line 100) to the beginning of the transport (e.g., the beginning of the printing conveyor line 100, the beginning of the unloading conveyor line 300), facilitating the alternating picking and releasing of battery cells by each transport unit 220. With this movement method, the picking and releasing of battery cells can be achieved as long as the end of one conveyor line and the beginning of another connecting conveyor line are both located on the circular path formed by the aforementioned circumferential movement. For example, the loading conveyor line 200 and the unloading conveyor line 300 may be located on one side of the printing conveyor line 100 and parallel to the printing conveyor line 100, and the conveying end of the loading conveyor line 200 is close to the conveying beginning of the unloading conveyor line 300, and the conveying beginning of the unloading conveyor line 300 is close to the conveying end of the printing conveyor line 100.

[0072] For example, the conveying mechanism includes four conveying units 812, which are equally spaced circumferentially. That is, the four conveying units 812 are evenly spaced along the circular path formed by the aforementioned circumferential movement. When one conveying unit 812 moves to the end of the conveying process, another conveying unit 812 moves to the beginning of the conveying process. The rotary drive 811 drives the conveying unit 812 to rotate 90° in the plane each time, which always ensures that one conveying unit 812 is located at the beginning of the conveying process to release the battery cells, while another conveying unit 812 is located at the end of the corresponding conveying line to pick up the battery cells. In this way, two conveying units 812 always perform corresponding actions synchronously (performing battery cell adsorption and battery cell release actions respectively), thereby speeding up the conveying rhythm of the battery cells and improving the conveying efficiency of the battery cells.

[0073] In some embodiments, the conveying unit 812 includes a lifting component 812a and a picking component 812b. The lifting component 812a is disposed on the driving end of the rotary drive 811, and the picking component 812b is disposed on the driving end of the lifting component 812a. The lifting component 812a is used to drive the picking component 812b to move up and down in the vertical direction, so that the picking component 812b is suitable for conveying battery cells between conveyor lines of different heights, making the handling of battery cells more convenient and stable.

[0074] As described in the previous examples, the transport unit 812 can pick up battery cells using an adsorption method. Therefore, in a specific implementation, the lower surface of the picking member 812b has several adsorption zones, each with an adsorption hole. The adsorption holes attract the battery cell, and each zone picks up one battery cell at a time. Alternatively, each adsorption zone can be equipped with a suction cup, which can be a Bernoulli suction cup or a vacuum suction cup. Each zone uses the suction cup to adsorb the battery cell, and the suction cup can also adsorb the upper surface of the battery cell. It is understood that the method by which the picking member 812b acquires battery cells is not limited to the aforementioned examples. It can also move from below the end of the corresponding conveyor line, from bottom to top, so that the upper surface of the picking member 812b contacts the lower surface of the battery cell, securely receiving the battery cell and transferring it to the beginning of another conveyor line, thereby picking up the battery cell.

[0075] The following examples, in conjunction with the accompanying drawings, will further illustrate the detailed construction of the first transfer mechanism 710 and the second transfer mechanism 720 of the embodiments described above.

[0076] Continue to combine Figures 1 to 3 as well as Figures 7 to 9As shown, near the beginning of the printing conveyor line 100, four first transfer mechanisms 710 are arranged across the first loading / unloading station and the printing conveyor line 100. When the first printing table 410 is in the first loading / unloading station, each first transfer mechanism 710 transfers a corresponding battery cell from the printing conveyor line 100 to the first side of the printing conveyor line 100, thereby transferring the battery cell to be printed onto the first printing table 410. Near the end of the printing conveyor line 100, four second transfer mechanisms 720 are also arranged across the second loading / unloading station and the printing conveyor line 100. Each second transfer mechanism 720 transfers a corresponding battery cell from the printing conveyor line 100 to the first side of the printing conveyor line 100, thereby transferring the battery cell to be printed onto the second printing table 420 in the second loading / unloading station. The exemplary structure of the first transfer mechanism 710 is described in detail below. The structure of the second transfer mechanism 720 is the same as that of the first transfer mechanism 710 and can be understood in conjunction with the description of the first transfer mechanism 710 below.

[0077] Continue to refer to Figures 7 to 9As shown, the first transfer mechanism 710 includes a bracket 711, a mounting member 712, a transmission member 713, a belt 714, and multiple air nozzles (e.g., the first exhaust nozzle 715a and the second exhaust nozzle 715b shown in the figure). The bracket 711 is disposed above the printing conveyor line 100 and extends towards a first side, and the lower surface of the bracket 711 is recessed to form a groove, which also extends from above the printing conveyor line 100 towards the first side, thereby giving the bracket 711 and the groove an extension length spanning the printing conveyor line 100 and the first loading / unloading station. The mounting member 712 is disposed within the groove, and therefore, the mounting member 712 is also above the printing conveyor line 100 and extends towards the first side. Slits 711a are formed on both sides of the mounting member 712, and these slits 711a are defined by the two opposing inner walls of the mounting member 712 and the groove, respectively. Therefore, both slits 711a are also above the printing conveyor line 100 and extend towards the first side. The transmission component 713 is disposed at both ends of the bracket 711, the belt 714 is sleeved on the transmission component 713, and the belt 714 is driven by the transmission component 713 to achieve transmission. The transmission is along the direction above the printing conveyor line 100 to above the first loading and unloading station, and the belt 714 is transmitted along the lower surface of the mounting component 712 and is located between the two slits 711a. Multiple air nozzles are mounted on the bracket 711 and arranged in two rows along the extension direction of the groove. The first exhaust nozzle 715a is connected to a slit 711a, and the second exhaust nozzle 715b is connected to another slit 711a. The two exhaust nozzles are configured as multiple independent groups along the extension direction of the groove. Each group includes three air nozzles connected to one slit 711a (selected as the first exhaust nozzle 715a) and three air nozzles connected to the other slit 711a (selected as the second exhaust nozzle 715b). In practice, the number of air nozzles in each group is not limited to three per row; it can also be two, four, or other preset numbers per row. Each group of air nozzles can controllably inject a preset pressure of airflow into the two slits 711a (see reference). Figure 9 The airflow direction shown in the diagram causes the corresponding battery cells to be subjected to an upward adsorption force due to the velocity difference or a vacuum adsorption force. The battery cells below the belt 714 are adsorbed onto the belt 714 and driven by the friction of the belt 714. That is, the adsorbed battery cells move under the transmission of the belt 714. The adsorbed battery cells can be transported from the printing conveyor line 100 to the first printing table 410 and the second printing table 420 under the adsorption and the lateral movement of the belt 714. In addition, multiple sets of independent air nozzles are arranged from the top of the printing conveyor line 100 to the first side, which facilitates the adjustment of the air nozzles at the corresponding positions according to the lateral movement of the battery cells. This not only maintains stable adsorption but also avoids the mis-adsorption of battery cells that have already been printed.

[0078] The following example, in conjunction with the accompanying drawings, further illustrates the detailed structure of the first printing table 410, the second printing table 420, and the lifting and conveying mechanism, as well as the operational coordination between the first printing table 410 and the corresponding lifting and conveying mechanism. The operational coordination between the second printing table 420 and the corresponding lifting and conveying mechanism can also be understood by those skilled in the art by referring to the operational coordination between the first printing table 410 and the corresponding lifting and conveying mechanism.

[0079] Continue to combine Figures 1 to 3 as well as Figures 7 to 10 As shown, both the first printing table 410 and the second printing table 420 include a guide rail 411, a support plate 412, a drive component, and a paper winding machine 413. The support plate 412 is mounted on the guide rail 411 and driven by the drive component to achieve reciprocating motion. The paper winding machine 413 is mounted on the support plate 412 and is covered with rolled paper. The rolled paper is driven by the paper winding machine 413 to achieve unwinding and rewinding. The direction of movement of the rolled paper during unwinding is opposite to that during rewinding, and both are perpendicular to the conveying direction of the printing conveyor line 100. During unwinding, the printed battery cells located on the rolled paper move from the paper winding machine 413 to the printing conveyor line 100. In short, by relying on the unwinding action, the first printing table 410 and the second printing table 420 realize unloading, conveying the printed battery cells to the printing conveyor line 100.

[0080] At least one lifting conveyor mechanism (first lifting conveyor mechanism 910 and second lifting conveyor mechanism 920 as shown in the figure) is provided on one side of both the first and second loading / unloading stations. (See reference...) Figures 1 to 3 As shown, near the beginning of the printing conveyor line 100, a plurality of first lifting conveyor mechanisms 910 are provided below the printing conveyor line 100. These first lifting conveyor mechanisms 910 are located on one side of the first loading / unloading station and are used to receive the battery cells (i.e., the printed battery cells) unloaded from the first printing table 410 and release them onto the printing conveyor line 10. An exemplary configuration of the first lifting conveyor mechanism 910 is described in detail below. Near the end of the printing conveyor line 100, a plurality of second lifting conveyor mechanisms 920 are provided below the printing conveyor line 10, which can be understood in conjunction with the description of the first lifting conveyor mechanisms 910.

[0081] Reference Figure 7 and Figure 10As shown, a first lifting conveyor 910 is disposed below the printing conveyor line 100. Multiple first lifting conveyors 910 are arranged along the conveying direction of the printing conveyor line 100 near the beginning of the conveying process. Each first lifting conveyor 910 is used to contact a single battery cell. Each first lifting conveyor 910 includes a lifting drive 911, a lifting plate 912, a tensioning wheel 913, and a lifting belt 914. The lifting plate 912 has a vertical mounting surface perpendicular to the conveying surface of the printing conveyor line 100. The tensioning wheels 913 are all mounted on the mounting surface. The lifting belt 914 is sleeved on the tensioning wheel 913, and the lifting belt 914 is perpendicular to the printing conveyor line. At least two support portions 915 are formed in the conveying direction of the printing conveyor line 100. The lifting drive member 911 first drives the lifting plate 912 to rise so that the support portion 915 passes through the conveying surface of the printing conveyor line 100 and abuts against and raises the battery cell to be printed. After the battery cell is raised, it leaves the conveying surface of the printing conveyor line 100 and gets closer to the first transfer mechanism 710. The first transfer mechanism 710 then injects airflow of preset pressure through the air nozzle above the battery cell to form a negative pressure adsorption effect, thereby picking up the raised battery cell to be printed. The support portion 915 then receives the printed battery cell based on the unwinding action driven by the paper roll machine 413 and lowers to place the printed battery cell onto the printing conveyor line 100.

[0082] The second lifting conveyor 920 is located near the end of the printing conveyor line 100 and has the same structure as the first lifting conveyor 910. The second lifting conveyor 920 abuts against and raises the battery cell to be printed. The second transfer mechanism 720 picks up the raised battery cell to be printed and, based on the cooperation between the second lifting conveyor 920 and the second printing table 420, can place the printed battery cell onto the printing conveyor line 100.

[0083] When the lifting plates 912 of the first lifting conveyor 910 and the second lifting conveyor 920 are raised and lowered, the support 915 can pass through the conveying surface of the printing conveyor line 100 to raise the battery cell. The raising of the support 915 also facilitates the adsorption of the battery cell to be printed by the first transfer mechanism 710 and the second transfer mechanism 720, and the unwinding and discharge of the printed battery cell by the paper roll machine 413. In short, with the help of the first lifting conveyor 910 and the second lifting conveyor 920, the corresponding first transfer mechanism 710 and second transfer mechanism 720 can stably adsorb the battery cell, and the printed battery cell on the first printing table 410 and the second printing table 420 can be transferred to the printing conveyor line 100.

[0084] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0085] Based on the above description of this application, those skilled in the art will also understand that the terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are based on the orientation or positional relationship shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the solution of this application and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as a limitation on the solution of this application.

[0086] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0087] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A battery cell printing apparatus, characterized in that, The system includes a printing conveyor line, a first printing table, a second printing table, and a screen printing mechanism. A first loading / unloading station, a printing station, and a second loading / unloading station are sequentially arranged on a first side of the printing conveyor line. The first printing table, the screen printing mechanism, and the second printing table are sequentially arranged on the first side of the printing conveyor line along its conveying direction, with the screen printing mechanism located at the printing station. The first printing table reciprocates between the first loading / unloading station and the printing station, and the second printing table reciprocates between the second loading / unloading station and the printing station. Both the first and second printing tables are used to carry the battery cells to be printed and alternately move to the printing station. The screen printing mechanism... The battery cell printing apparatus further includes a first transfer mechanism and a second transfer mechanism for printing on the battery cells to be printed at the printing station. The first transfer mechanism is used to transport the battery cells to be printed on the printing conveyor line to the first printing table located at the first loading and unloading station, and at the same time, the first printing table located at the first loading and unloading station outputs the printed battery cells to the printing conveyor line. The second transfer mechanism is used to transport the battery cells to be printed on the printing conveyor line to the second printing table located at the second loading and unloading station, and at the same time, the second printing table located at the second loading and unloading station outputs the printed battery cells to the printing conveyor line.

2. The battery cell printing apparatus according to claim 1, characterized in that, The screen printing mechanism includes at least two screen printing components. The first printing table and the second printing table carry a set of battery cells to be printed. When the first printing table or the second printing table is located at the printing station, all the screen printing components perform printing simultaneously. Each screen printing component corresponds to one battery cell to be printed during each simultaneous printing.

3. The battery cell printing apparatus according to claim 2, characterized in that, The screen printing mechanism includes two screen printing components. The set of battery cells to be printed includes four battery cells. When printing simultaneously, the two screen printing components correspond to two of the four battery cells, and there is a gap of one battery cell between the two battery cells. After the first simultaneous printing of two battery cells is completed, the first printing table or the second printing table moves the two battery cells to be printed directly below the two screen printing components and realizes the second simultaneous printing.

4. The battery cell printing apparatus according to claim 1, characterized in that, A shooting and positioning mechanism is provided above both the first printing table and the second printing table. The shooting and positioning mechanism is used to determine the position information of the battery cell to be printed. The screen printing mechanism adjusts the position of the printing screen based on the position information to align with the corresponding battery cell.

5. The battery cell printing apparatus according to claim 1, characterized in that, The cell printing apparatus further includes a cell conveying line and a transport mechanism. The cell conveying line is used to transport cells, and the cells on the cell conveying line are arranged side by side along the conveying direction. The cells on the printing conveying line are arranged sequentially along the same conveying direction. The end of the cell conveying line and the printing conveying line is located near the beginning of the other. The transport mechanism moves alternately to the end of the conveying line and the beginning of the conveying line. When moving to the end of the conveying line, the transport mechanism picks up at least two cells located at the end of the conveying line. When moving to the beginning of the conveying line, the transport mechanism releases the at least two cells that have been picked up to the beginning of the conveying line.

6. The battery cell printing apparatus according to claim 5, characterized in that, The battery cell conveying line includes a loading conveyor line, and the conveying mechanism includes a first conveying mechanism. The end of the loading conveyor line is located adjacent to the beginning of the printing conveyor line. The first conveying mechanism moves alternately between the end of the loading conveyor line and the beginning of the printing conveyor line. When moving to the end of the loading conveyor line, the first conveying mechanism picks up at least two battery cells arranged side-by-side at the end of the loading conveyor line. When moving to the beginning of the printing conveyor line, the first conveying mechanism releases the picked-up at least two battery cells to the beginning of the printing conveyor line. The at least two battery cells are arranged sequentially along the conveying direction at the beginning of the printing conveyor line; and / or, The battery cell conveying line includes a feeding conveying line, and the conveying mechanism includes a second conveying mechanism. The feeding start end of the feeding conveying line is located near the feeding end end of the printing conveying line. The second conveying mechanism moves alternately between the feeding end end of the printing conveying line and the feeding start end of the feeding conveying line. When moving to the feeding end end of the printing conveying line, the second conveying mechanism picks up at least two battery cells that are arranged sequentially at the feeding end end of the printing conveying line. When moving to the feeding start end of the feeding conveying line, the second conveying mechanism releases the at least two battery cells that have been picked up to the feeding start end of the feeding conveying line, and the at least two battery cells are arranged side by side at the feeding start end of the feeding conveying line.

7. The battery cell printing apparatus according to claim 5, characterized in that, The conveying mechanism includes a rotary drive and at least two conveying units. The conveying units are mounted on the rotary drive and moved by the rotary drive. The conveying units are used to acquire at least two battery cells from the conveying end. After one of the conveying units acquires a battery cell, the rotary drive drives the conveying unit to rotate and move to the conveying beginning to release the battery cell.

8. The battery cell printing apparatus according to claim 7, characterized in that, The rotary drive drives each of the transport parts to move circumferentially in the horizontal plane, so that each of the transport parts moves sequentially from the conveying end to the conveying beginning; and / or, the transport mechanism includes four transport parts, which are equally spaced circumferentially, and when one transport part moves to the conveying end, the other transport part moves to the conveying beginning.

9. The battery cell printing apparatus according to claim 1, characterized in that, The screen printing mechanism also includes: A lifting support component is located at the printing station, and the lifting support component includes a lifting drive end; Mounting plate, the mounting plate being disposed at the lifting drive end; A screen printing assembly, mounted on the mounting plate and near a first end of the mounting plate, the screen printing assembly being used to perform screen printing on a battery cell located below the screen printing assembly; and, A balancer is installed at the second end of the mounting plate, with the first end and the second end of the mounting plate located on opposite sides of the lifting drive end. The balancer is used to apply a vertically downward force to the second end of the mounting plate to balance the gravity applied by the screen printing assembly to the first end of the mounting plate.

10. The battery cell printing apparatus according to claim 1, characterized in that, Both the first transfer mechanism and the second transfer mechanism include: A bracket is disposed above the printing conveyor line, and a groove is formed on the lower surface of the bracket, the groove extending from above the printing conveyor line toward the first side; The mounting component is disposed within the groove, and slits are formed on the two opposing inner walls of the mounting component and the groove on both sides of the mounting component. A transmission component, wherein the transmission component is disposed at both ends of the bracket; A belt, which is fitted onto the transmission member and driven by the transmission member, and the belt is driven along the lower surface of the mounting member and is located between the two slits; Multiple air nozzles are disposed on the bracket and arranged in two rows along the extension direction of the groove. The two rows of air nozzles are connected to the two slits in a one-to-one correspondence. The two rows of air nozzles are configured as multiple independent groups along the extension direction of the groove. Each group includes two rows of a predetermined number of air nozzles. The air nozzles can controllably inject airflow at a predetermined pressure into the slits to cause the battery cells below the air nozzles to be attracted to the belt, and the attracted battery cells move under the drive of the belt.

11. The battery cell printing apparatus according to claim 1 or 10, characterized in that, Both the first printing table and the second printing table include a guide rail, a support plate, a drive component, and a paper winding machine. The support plate is mounted on the guide rail and driven by the drive component to achieve the reciprocating motion. The paper winding machine is mounted on the support plate and is covered with a roll of paper. The roll of paper is driven by the paper winding machine to achieve unwinding and rewinding. The movement direction of the roll of paper during unwinding and rewinding is perpendicular to the conveying direction of the printing conveyor line. During unwinding, the battery cell that has been printed on the roll of paper moves from the paper winding machine to the printing conveyor line. At least one lifting conveyor mechanism is provided on one side of both the first and second loading / unloading stations. The lifting conveyor mechanisms are located below the printing conveyor line and arranged along the conveying direction of the printing conveyor line. Each lifting conveyor mechanism is used to contact a battery cell. Each lifting conveyor mechanism includes a lifting drive, a lifting plate, a tensioning wheel, and a lifting belt. The lifting plate has a vertical mounting surface. The tensioning wheels are all mounted on the mounting surface. The lifting belt is sleeved on the tensioning wheel. The lifting belt forms at least two support portions in the conveying direction perpendicular to the printing conveyor line. The lifting drive first drives the lifting plate to rise so that the support portions pass through the conveying surface of the printing conveyor line to contact and raise the battery cell to be printed. The first transfer mechanism and the second transfer mechanism pick up the raised battery cell to be printed. The support portions then receive the printed battery cell based on the unwinding action driven by the paper roll machine and descend to place the printed battery cell onto the printing conveyor line.

Images