Battery piece printing device, battery piece printing equipment and battery piece printing method

Abstract

The invention provides a battery piece printing device, battery piece printing equipment and a battery piece printing method. The battery piece printing device comprises a printing mechanism, a mounting base, at least one printing table mounted on the mounting base and driving mechanisms in one-to-one correspondence with the printing tables. The driving mechanism drives the corresponding printing table to move to the printing station. The printing table comprises a carrying table and at least two ink pads arranged on the carrying table, each ink pad is used for carrying one battery piece, at least one ink pad is provided with an independent three-axis alignment platform, and the three-axis alignment platform is configured to carry out horizontal position adjustment on the ink pads. And the printing mechanism is configured to synchronously print the at least two battery pieces on the printing table moved to the printing station. According to the invention, at least two battery pieces can be printed synchronously, so that the printing efficiency is improved. The printing table can adjust the position of at least one battery piece on the printing table, so that the relative position of each battery piece on the printing table meets the printing requirement.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell module production equipment, specifically a cell printing apparatus, cell printing equipment, and cell printing method. Background Technology

[0002] In the battery module manufacturing process, there are steps involving the use of screen printing machines to print special materials on the surface of the battery cells. For example, a conductive material can be printed on the surface of the battery cells to form grid lines for collecting current. Another example is the use of screen printing machines to print conductive adhesive on the surface of the battery cells.

[0003] To improve the overall efficiency of the printing line, the printing table can simultaneously move two battery cells to be printed to the printing station. The positions of the two battery cells on the printing table are relatively fixed. When adjusting the angle of the printing table to adjust the position of the battery cells, only the positional accuracy of one battery cell can be satisfied. Therefore, the existing method involves setting up a first printing mechanism at the first printing station and a second printing mechanism at the second printing station. The printing table adjusts its angle at the first printing station to ensure that one battery cell meets the positional accuracy, and the first printing mechanism prints the battery cell that meets the positional accuracy. Then, the printing table moves to the second printing station, adjusts its angle at the second printing station to ensure that the other battery cell meets the positional accuracy, and the second printing mechanism prints the other battery cell that meets the positional accuracy.

[0004] Obviously, the existing printing method requires two printing units, which is costly; and printing two battery cells requires two printing processes, which is also inefficient. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides a battery cell printing apparatus, which adopts the following technical solution:

[0006] A battery cell printing apparatus includes a printing mechanism, a mounting base, at least one printing stage mounted on the mounting base, and a drive mechanism corresponding to each printing stage, wherein:

[0007] The drive end of the drive mechanism is connected to the corresponding printing table, and the mounting base is equipped with a printing station. The drive mechanism is configured to drive the corresponding printing table to move to the printing station.

[0008] The printing table includes a platform and at least two printing plates disposed on the platform, each printing plate being used to support a battery cell, and at least one printing plate having an independent three-axis alignment platform configured to perform horizontal position adjustment on the printing plate.

[0009] The printing unit is located at the printing station and is configured to simultaneously print at least two battery cells on the printing table that has been moved to the printing station.

[0010] The cell printing apparatus in this embodiment can simultaneously print on at least two cells, thereby improving the printing efficiency. Specifically, the printing table can adjust the position of at least one cell on it, ensuring that the relative positions of the cells meet printing requirements, ultimately guaranteeing that the printing quality of each cell meets the requirements.

[0011] In some embodiments, at least two printing pads include a first printing pad and a second printing pad, wherein: the first printing pad is fixedly mounted on a platform; a three-axis alignment platform is mounted on the platform, and the second printing pad is connected to a movable part of the three-axis alignment platform. The three-axis alignment platform is configured to drive the second printing pad to translate and rotate on a horizontal plane to adjust the position of the battery cell located on the second printing pad.

[0012] The printing table is equipped with two printing plates, which allows the printing mechanism to print on two battery cells simultaneously, and ensures that the relative positions of the two battery cells meet the printing requirements, ultimately ensuring the printing quality of the two battery cells.

[0013] In some embodiments, both the first and second printing pads have adsorption holes on their bearing surfaces for adsorbing battery cells.

[0014] The first and second printing plates respectively hold the battery cells in place through adsorption holes on their bearing surfaces, preventing the battery cells from sliding during the printing process and affecting the printing quality.

[0015] In some embodiments, the drive mechanism includes a translation drive and a lifting drive, wherein the translation drive is connected to the mounting base, the lifting drive is connected to a movable part of the translation drive, and a first end of the platform is connected to the movable part of the lifting drive; the translation drive is configured to drive the platform to translate, and the lifting drive is configured to drive the platform to lift.

[0016] Through the cooperation of the translation drive unit and the lifting drive unit, the drive mechanism realizes the translation and lifting drive of the platform.

[0017] In some embodiments, the triaxial alignment platform is positioned near the first end of the stage.

[0018] The overall weight of the three-axis alignment platform and the printing table connected to it is greater than the weight of the printing table without the three-axis alignment platform. By setting the three-axis alignment platform and the printing table connected to it closer to the first end of the carrier (i.e. closer to the drive mechanism), the center of gravity of the printing table can be closer to the drive mechanism, thereby improving the driving stability of the drive mechanism on the printing table and preventing the printing table from deforming and falling.

[0019] In some embodiments, there are 2n printing tables, where n printing tables are mounted on the first side wall of the mounting base via corresponding drive mechanisms, and the other n printing tables are mounted on the second side wall of the mounting base opposite to the first side wall via corresponding drive mechanisms, where n is 1 or 2.

[0020] Two or four printing stages alternately move the solar cells to the printing station for printing, further improving printing efficiency. In addition, installing an equal number of printing stages on the first and second side walls of the mounting base can improve the stability of the mounting base in supporting the printing stages and balance the weight.

[0021] In some embodiments, the printing mechanism includes a mounting frame, a moving module, a screen assembly, and a printing assembly, wherein: the moving module is disposed on the mounting frame, the printing assembly is slidably connected to the mounting frame and connected to a movable part of the moving module; the screen assembly is disposed on the mounting frame and located below the printing assembly; the moving module is configured to drive the printing assembly, which abuts against the screen assembly, to reciprocate along the screen assembly so that printing paste is printed through the screen assembly onto a battery cell located at the printing station.

[0022] Through the cooperation of the moving module, screen assembly, and printing assembly, the printing mechanism achieves the scraping and printing of the battery cells.

[0023] In some embodiments, the screen assembly includes a screen mounting frame, a screen, and a screen adjusting member, wherein: both the screen mounting frame and the screen adjusting member are mounted on the mounting frame, and the screen mounting frame and the screen adjusting member are convexly connected; the screen is detachably mounted on the screen mounting frame, and a first printing area and a second printing area are arranged side by side on the screen; the screen adjusting member is configured to drive the screen mounting frame to translate and rotate in a horizontal plane, so that one of the first printing area and the second printing area of ​​the screen is adapted to the position of a battery cell located on a first printing table; and a three-axis alignment platform is configured to perform position adjustment on a second printing table, so that the other of the first printing area and the second printing area is adapted to the position of a battery cell located on the second printing table.

[0024] By configuring the screen printing components, the position and angle of the screen can be automatically adjusted, thereby aligning one of the first and second printing areas of the screen with the position of the battery cell located on the first printing table, thus improving the printing effect.

[0025] In some embodiments, the cell printing apparatus further includes a positioning camera configured to position a cell on a first printing table and a cell on a second printing table; a screen adjustment member drives a screen mounting frame to translate and rotate in a horizontal plane based on the position information of the cell on the first printing table, so that one of the first printing area and the second printing area of ​​the screen is adapted to the position of the cell on the first printing table; a three-axis alignment platform is configured to adjust the position of the second printing table based on the position information of the cell on the second printing table, so that the other of the first printing area and the second printing area is adapted to the position of the cell on the second printing table.

[0026] By setting up a positioning camera, the battery cells located on the first printing plate and the second printing plate are positioned. This allows the screen adjustment component and the three-axis alignment platform to adjust the positions of the screen and the second printing plate based on the position information of the battery cells on the first printing plate and the second printing plate, respectively. Ultimately, one of the first printing area and the second printing area of ​​the screen is adapted to the position of the battery cell on the first printing plate, and the other of the first printing area and the second printing area of ​​the screen is adapted to the position of the battery cell on the second printing plate.

[0027] In some embodiments, the printing assembly includes a mounting plate, a first lifting section, a second lifting section, a voice coil motor, a doctor blade module, and a back-ink blade module, wherein: the first lifting section and the second lifting section are mounted side by side on the mounting plate, and the mounting plate is slidably connected to a mounting bracket; the voice coil motor is connected to a movable part of the first lifting section, the doctor blade module is connected to the drive end of the voice coil motor, the first lifting section is configured to drive the doctor blade module to rise and fall, and when the doctor blade module descends to a low position, it contacts the screen assembly; the voice coil motor is configured to press the doctor blade module onto the screen assembly with a constant pressure; the back-ink blade module is connected to a movable part of the second lifting section, and the second lifting section is configured to drive the back-ink blade module to rise and fall, and when the back-ink blade module descends to a low position, it approaches the screen assembly.

[0028] The first lifting unit that drives the squeegee module to rise and fall is connected to the squeegee module via a voice coil motor. When the first lifting unit drives the squeegee module to fall, so that the squeegee module contacts the screen assembly, the voice coil motor presses the squeegee module elastically onto the screen with constant pressure, thereby ensuring that the squeegee module can print the printing paste onto the battery cell with constant squeegee force and improve printing consistency.

[0029] In some embodiments, the three-axis alignment platform includes a base, an X-axis moving component, a Y-axis moving component, and a T-axis rotating component, wherein: the X-axis moving component is slidably connected to the base; a first stator is disposed on one of the base and the X-axis moving component; a first mover, corresponding to the first stator, is disposed on the other of the base and the X-axis moving component; the first mover and the first stator cooperate to drive the X-axis moving component to slide along the X-axis direction on the base; the Y-axis moving component is slidably connected to the X-axis moving component; a second stator is disposed on one of the X-axis moving component and the Y-axis moving component. One of the X-axis moving parts and the Y-axis moving parts is provided with a second mover that matches the second stator. The second mover and the second stator cooperate to drive the Y-axis moving part to slide along the Y-axis direction on the X-axis moving part. The T-axis rotating part is rotatably connected to the Y-axis moving part. One of the Y-axis moving parts and the T-axis rotating part is provided with an annular third stator. The other of the Y-axis moving parts and the T-axis rotating part is provided with a third mover that matches the third stator. The third mover and the third stator cooperate to drive the T-axis rotating part to rotate. The printing pad is connected to the T-axis rotating part.

[0030] A simple and stable three-axis alignment platform is provided, which can drive the corresponding printing table to translate and rotate on the horizontal plane, thereby completing the position adjustment of the battery cell located on the printing table.

[0031] This application also provides a battery cell printing apparatus, which includes an input mechanism, an output mechanism, and the battery cell printing device described in any one of the above, wherein: the input mechanism is configured to transport the battery cell to be printed to the printing table of the printing station; the output mechanism is configured to receive the printed battery cell from the printing table of the printing station and output the printed battery cell.

[0032] By coordinating the input mechanism, the cell printing device, and the output mechanism, the cell printing equipment provided in this application enables the simultaneous printing of two or more cells and achieves automatic loading and unloading of cells, thereby improving the cell printing efficiency.

[0033] In some embodiments, the input mechanism includes a brush assembly, an antistatic assembly, and an air knife assembly disposed along the transport path of the input mechanism, wherein the brush assembly is configured to brush away impurities from the surface of the battery cell, the antistatic assembly is configured to remove static electricity from the surface of the battery cell, and the air knife assembly is configured to blow air toward the battery cell.

[0034] By incorporating a brush assembly, impurities on the surface of the solar cells are removed. An antistatic assembly removes static electricity from the surface of the solar cells. An air knife mechanism blows away minute impurities from the surface of the solar cells.

[0035] In some embodiments, the cell printing apparatus further includes a straightening mechanism disposed on the conveying path of the input mechanism and / or the output mechanism, the straightening mechanism being configured to straighten the cells passing through the straightening mechanism; the cell printing apparatus further includes an output inspection camera, the output inspection camera being configured to capture and inspect the printing quality of the printed cells.

[0036] By incorporating a leveling mechanism on the input mechanism, the position of the solar cells to be printed is aligned, ensuring that the printing table can smoothly receive the cells from the input mechanism. Similarly, a leveling mechanism on the output mechanism ensures the position of the printed solar cells is aligned. Finally, an output inspection camera enables automatic detection of the printing quality of the finished solar cells.

[0037] This application also provides a method for printing battery cells, which includes:

[0038] The first and second battery cells are respectively loaded onto the first and second printing plates;

[0039] Positioning is performed on the first and second battery cells to obtain their actual positions.

[0040] Align one of the first printing area and the second printing area of ​​the screen with the first battery cell, so that the position of one of the first printing area and the second printing area of ​​the screen matches that of the first battery cell;

[0041] The second battery cell is aligned with the other of the first and second printing areas of the screen, so that the position of the second battery cell is adapted to the other of the first and second printing areas of the screen.

[0042] Control the first and second printing plates to move to the printing station;

[0043] The first and second solar cells are printed simultaneously.

[0044] The battery cell printing method provided in this application can print two battery cells simultaneously and ensure that the two battery cells are respectively adapted to the first printing area and the second printing area of ​​the screen, thereby ensuring the printing quality of the two battery cells.

[0045] In some embodiments, aligning one of the first printing area and the second printing area of ​​the screen printing plate with the first battery cell includes: obtaining a pre-stored standard position of the first battery cell; generating a first position adjustment strategy based on the actual position of the first battery cell and the standard position of the first battery cell; and adjusting the position of the screen printing plate according to the first position adjustment strategy. Aligning the second battery cell with the other of the first and second printing areas of the screen printing plate includes: determining a target position of the second battery cell based on the actual position of the first battery cell; generating a second position adjustment strategy based on the actual position of the second battery cell and the target position of the second battery cell; and adjusting the position of the second printing pad according to the second position adjustment strategy.

[0046] This provides a specific alignment strategy for the screen printing plate and the battery cells, which enables rapid and accurate alignment of the first and second printing areas of the screen printing plate with the first and second battery cells.

[0047] In some embodiments, before synchronous printing is performed on the first and second battery cells, the battery cell printing method further includes: controlling the first and second printing plates to rise to a predetermined printing height; after synchronous printing is performed on the first and second battery cells, the battery cell printing method further includes: controlling the first and second printing plates to descend and return to their original positions.

[0048] Before synchronous printing on the first and second battery cells, controlling the first and second printing plates to rise to a predetermined printing height allows the first and second printing plates to approach the screen at a predetermined distance, thereby ensuring effective printing by the printing mechanism on the first and second printing plates; at the same time, the printing plates avoid the screen, preventing interference with the screen when moving below it. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of the battery cell printing equipment in the embodiments of this application;

[0050] Figure 2 This is a schematic diagram of the connection structure between the printing table and the drive mechanism in an embodiment of this application;

[0051] Figure 3 This is a schematic diagram of the printing table structure in an embodiment of this application;

[0052] Figure 4 This is a schematic diagram of the printing table structure in an embodiment of this application, after omitting the second printing table.

[0053] Figure 5 This is a schematic diagram of the structure of the three-axis alignment platform in the embodiments of this application;

[0054] Figure 6 This is a schematic diagram of the printing mechanism in the embodiments of this application;

[0055] Figure 7 This is a schematic diagram of the printing mechanism without the mounting frame in an embodiment of this application.

[0056] Figure 8 This is a schematic diagram of the printing component in an embodiment of this application;

[0057] Figure 9 This is a schematic diagram of the structure of the second lifting unit and the ink return blade module in the embodiments of this application;

[0058] Figure 10 This is a schematic diagram of the input mechanism in the embodiments of this application;

[0059] Figure 11 This is a schematic diagram of the input mechanism and printing table in the embodiments of this application.

[0060] Figures 1 to 11 Includes:

[0061] Battery cell printing device 10:

[0062] Printing Mechanism 1: Mounting frame 11, Moving module 12, Screen assembly 13, Printing assembly 14, Screen mounting frame 131, Screen 132, First printing area 1321, Second printing area 1322, Mounting plate 140, First lifting part 141, First motor 1411, First lead screw module 1412, Slide plate 1413, Second lifting part 142, Second motor 1421, Second lead screw module 1422, Voice coil motor 143, Squeegee module 144, Drive plate 1441, Squeegee mounting frame 1442, Squeegee 1443, Rotating shaft 1444, First baffle plate 1445, Ink return knife module 145, Connecting plate 1451, Ink return knife 1452, Second baffle plate 1453;

[0063] Mounting base 2;

[0064] Printing table 3: platform 31, first printing table 32, second printing table 33, three-axis alignment platform 34, suction hole 35, conveyor belt clearance groove 36, base 341, X-axis moving part 342, Y-axis moving part 343, T-axis rotating part 344;

[0065] Drive mechanism 4: translation drive unit 41, lifting drive unit 42;

[0066] Positioning camera 5;

[0067] Input mechanism 20:

[0068] 21. Brush assembly; 22. Antistatic assembly; 23. Air knife assembly; 24. Steering mechanism;

[0069] Output mechanism 30. Detailed Implementation

[0070] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] like Figures 1 to 4 As shown, the battery cell printing apparatus 10 in this embodiment includes a printing mechanism 1, a mounting base 2, at least one printing stage 3 mounted on the mounting base 2, and a driving mechanism 4 corresponding to each printing stage 3, wherein:

[0072] The drive end of the drive mechanism 4 is connected to the corresponding printing table 3. The mounting base 2 is equipped with a printing station. The drive mechanism 4 is configured to drive the corresponding printing table 3 to move to the printing station.

[0073] The printing table 3 includes a stage 31 and at least two printing plates (e.g., the two in the figure) disposed on the stage 31. Each printing plate is used to carry a battery cell. At least one printing plate has an independent three-axis alignment platform 34, which is configured to perform horizontal position adjustment on the printing plate.

[0074] The printing mechanism 1 is located at the printing station and is configured to simultaneously print at least two battery cells on the printing table 3 that has been moved to the printing station.

[0075] The cell printing apparatus 10 in this embodiment can simultaneously print on at least two cells, thereby improving the printing efficiency. Specifically, the printing table 3 can adjust the position of at least one cell on it, ensuring that the relative positions of the cells meet printing requirements, ultimately guaranteeing that the printing quality of each cell meets the requirements.

[0076] like Figures 2 to 4 As shown, optionally, the printing table 3 has two printing plates on its platform 31, namely a first printing plate 32 and a second printing plate 33, wherein the first printing plate 32 is fixedly mounted on the platform 1. A three-axis alignment platform 34 is mounted on the platform 31, and the second printing plate 33 is connected to a movable part of the three-axis alignment platform 34. The three-axis alignment platform 34 is configured to drive the second printing plate 33 to translate and rotate in the horizontal plane to adjust the position of the battery cell located on the second printing plate 33. That is, the second printing plate 33 has an independent three-axis alignment platform 34.

[0077] The optional operation process of the battery cell printing apparatus 10 in this embodiment is as follows:

[0078] First, the two battery cells are loaded onto the first printing plate 32 and the second printing plate 33 of the printing table 3 respectively, and the positioning camera is controlled to take pictures and position the battery cells on the first printing plate 32 and the second printing plate 33 to obtain the position information of the battery cells on the first printing plate 32 and the second printing plate 33.

[0079] Next, the printing mechanism 1 adjusts the position of the screen according to the position information of the battery cells on the first printing plate 32, so that one printing area of ​​the screen is adapted to the position of the battery cells on the first printing plate 32. Subsequently, the three-axis alignment platform 34 adjusts the position of the battery cells on the second printing plate 33 according to the position information of the battery cells located on the second printing plate 33, so that another printing area of ​​the screen is adapted to the position of the battery cells on the second printing plate 33.

[0080] Next, the drive mechanism 4 drives the printing table 3 to move to the printing station. At this time, the two printing areas of the screen are aligned with the two battery cells respectively, and the printing mechanism 1 performs synchronous printing on the battery cells on the first printing table 32 and the second printing table 33.

[0081] Since the two printing areas on the screen are adapted to the positions of the battery cells on the first printing plate 32 and the second printing plate 33 respectively, the printing quality of the two battery cells by the printing mechanism 1 can be ensured.

[0082] Optionally, both the first printing plate 32 and the second printing plate 33 have adsorption holes 35 on their bearing surfaces for adsorbing battery cells. The first printing plate 32 and the second printing plate 33 respectively adsorb the battery cells through the adsorption holes 35 on their bearing surfaces, preventing the battery cells from sliding during the printing process and affecting the printing quality.

[0083] Of course, three or more printing stations can also be set on the platform 31 of the printing table 3, enabling the printing mechanism 1 to simultaneously print three or more battery cells. For example, when three printing stations are set on the platform 31 of the printing table 3, the first printing station can be fixedly set on the platform 31, while the second and third printing stations each have independent three-axis alignment platforms. Before printing, the printing mechanism 1 adjusts the position of the screen according to the position information of the battery cells on the first printing station, so that one printing area of ​​the screen is adapted to the position of the battery cells on the first printing station. Subsequently, the three-axis alignment platforms corresponding to the second printing station and the third printing station adjust the positions of the second and third printing stations according to the position information of the battery cells on them, so that the battery cells on the second and third printing stations are adapted to the positions of the other two printing areas of the screen. In this way, the synchronous printing quality of the three battery cells on the printing table 3 by the printing mechanism 1 can be ensured.

[0084] like Figure 5As shown, optionally, the three-axis alignment platform 34 includes a base 341, an X-axis moving component 342, a Y-axis moving component 343, and a T-axis rotating component 344, wherein:

[0085] The X-axis moving part 342 is slidably connected to the base 341. A first stator is provided on one of the base 341 and the X-axis moving part 342, and a first moving part that matches the first stator is provided on the other of the base 341 and the X-axis moving part 342. The first moving part and the first stator cooperate to drive the X-axis moving part 42 to slide on the base along the X-axis direction.

[0086] The Y-axis moving part 343 is slidably connected to the X-axis moving part 342. A second stator is provided on one of the X-axis moving part 342 and the Y-axis moving part 343, and a second mover that matches the second stator is provided on the other of the X-axis moving part 342 and the Y-axis moving part 343. The second mover and the second stator cooperate to drive the Y-axis moving part 343 to slide along the Y-axis direction on the X-axis moving part 342.

[0087] The T-axis rotating component 344 is rotatably connected to the Y-axis moving component 343. One of the Y-axis moving component 343 and the T-axis rotating component 344 is provided with an annular third stator, and the other of the two components is provided with a third moving component that matches the third stator. The third moving component and the third stator cooperate to drive the T-axis rotating component 344 to rotate. An ink pad (e.g., a second ink pad 33) is connected to the T-axis rotating component 344.

[0088] As can be seen, through the coordinated drive of the X-axis moving part 342, the Y-axis moving part 343 and the T-axis rotating part 344, the three-axis alignment platform 34 can drive the printing table to translate in the X-axis and Y-axis directions and rotate around the T-axis on the horizontal plane, thereby realizing the position adjustment of the battery cell located on the printing table.

[0089] Of course, other existing UVW alignment platforms with different structures can also be used as the three-axis alignment platform 34 in this application embodiment, such as a UVW platform composed of multiple motors, lead screw modules and cross guide rails.

[0090] like Figure 1 and Figure 2 As shown, the drive mechanism 4 includes a translation drive unit 41 and a lifting drive unit 42. The translation drive unit 41 is connected to the mounting base 2, and the lifting drive unit 42 is connected to the movable part of the translation drive unit 41. The first end of the platform 31 is connected to the movable part of the lifting drive unit 42. The translation drive unit 41 is configured to drive the platform 31 to translate, and the lifting drive unit 42 is configured to drive the platform 31 to lift.

[0091] The translation drive unit 41 drives the stage 31 to translate, allowing it to move to the loading station to receive the battery cells to be printed, transport the cells to the printing station, and transport the printed cells to the unloading station. The lifting drive unit 42 drives the stage 31 to rise or fall, enabling height adjustment of the printing table. For example, when the battery cells to be printed reach the printing station, the lifting drive unit 42 can drive the stage 31 to rise, bringing the cells closer to the screen of the printing mechanism 1. This ensures effective printing of the cells by the printing mechanism 1 and prevents interference between the printing table and the screen.

[0092] Since the overall weight of the three-axis alignment platform 34 and the printing table connected thereto is greater than the weight of the printing table without the three-axis alignment platform 34, it is possible to optionally position the three-axis alignment platform 34 and the printing table connected thereto at the first end of the carrier (i.e. the end close to the drive mechanism 4). This will allow the center of gravity of the printing table 3 to be close to the drive mechanism 4, thereby improving the driving stability of the drive mechanism 4 on the printing table 3 and preventing the printing table 3 from deforming and falling.

[0093] For example, such as Figure 2 As shown, the stage 31 is provided with a first printing pad 32 and a second printing pad 33. The first printing pad 32 is located near the second end of the stage 31 (i.e., the end away from the drive mechanism 4), while the second printing pad 33 and its three-axis alignment platform 34 are located near the first end of the stage 31 (i.e., the end near the drive mechanism 4).

[0094] like Figure 1 As shown, optionally, four printing tables 3 are configured, with two printing tables 3 mounted on the first side wall (e.g., the front side wall) of the mounting base 2 via corresponding drive mechanisms 4, and the other two printing tables 3 mounted on the second side wall (e.g., the rear side wall) of the mounting base 2 opposite to the first side wall via corresponding drive mechanisms 4. The four printing tables 4 alternately drive the battery cells to the printing station for printing, further improving printing efficiency. In addition, since two printing tables 3 are mounted on the first and second side walls of the mounting base 2 respectively, the support stability of the mounting base 2 for the printing tables 3 can be improved, thus enhancing the printing effect. Alternatively, two printing tables 3 can be configured, with the two printing tables 3 respectively positioned on the first and second side walls of the mounting base 2, and the two printing tables 3 alternately driving the battery cells to the printing station for printing.

[0095] like Figures 6 to 7As shown, optionally, the printing mechanism 1 includes a mounting frame 11, a moving module 12, a screen assembly 13, and a printing assembly 14, wherein: the moving module 12 is disposed on the mounting frame 11, and the printing assembly 14 is slidably connected to the mounting frame 11 and connected to the movable parts of the moving module 12. The screen assembly 13 is disposed on the mounting frame 11 and located below the printing assembly 14. The moving module 12 is configured to drive the printing assembly 14, which abuts against the screen assembly 13, to reciprocate along the screen assembly 13, so that the printing paste is printed through the screen assembly 13 onto the battery cell located at the printing station.

[0096] Optionally, the screen assembly 13 includes a screen mounting frame 131, a screen 132, and a screen adjusting component. Both the screen mounting frame 131 and the screen adjusting component are mounted on the mounting frame 11, and the screen mounting frame 131 is kinetically connected to the screen adjusting component. The screen 132 is detachably mounted on the screen mounting frame 131, and a first printing area 1321 and a second printing area 1322 are arranged side-by-side on the screen 132. The screen adjusting component is configured to drive the screen mounting frame 131 to translate and rotate in a horizontal plane, so that one of the first printing area 1321 and the second printing area 1322 of the screen 132 is adapted to the position of the battery cell located on the first printing table 32. The three-axis alignment platform 34 is configured to adjust the position of the second printing table 33, so that the other of the first printing area 1321 and the second printing area 1322 is adapted to the position of the battery cell located on the second printing table 33.

[0097] For example, in one embodiment, the first printing plate 32 of the printing table 3 corresponds to the first printing area 1321 of the screen 132, and the second printing plate 33 of the printing table 3 corresponds to the second printing area 1322 of the screen 132.

[0098] The alignment process between the printing table 3 and the screen assembly 13 is as follows:

[0099] First, the two battery cells are loaded onto the first printing plate 32 and the second printing plate 33 of the printing table 3 respectively, and the positioning camera is controlled to take pictures and position the battery cells on the first printing plate 32 and the second printing plate 33 to obtain the position information of the battery cells on the first printing plate 32 and the second printing plate 33.

[0100] Next, the screen adjustment mechanism adjusts the position of the screen 132 according to the position information of the battery on the first printing plate 32, so that the first printing area 1321 of the screen 132 is adapted to the position of the battery on the first printing plate 32 (that is, when the first printing plate 32 moves under the screen carrying the battery, the first printing area 1321 is aligned with the battery). Of course, if the initial position of the first printing area 1321 of the screen 132 is already adapted to the position of the battery on the first printing plate 32, then there is no need to adjust the position of the screen 132.

[0101] Subsequently, the three-axis alignment platform 34 adjusts the position of the battery cell on the second printing plate 33 according to the position information of the battery cell on the second printing plate 33, so that the second printing area 1322 of the screen 132 is adapted to the position of the battery cell on the second printing plate 33 (that is, when the second printing plate 33 moves with the battery cell under the screen, the second printing area 1322 of the battery cell is aligned with the battery cell).

[0102] like Figure 1 As shown, optionally, the battery cell printing apparatus 10 in this embodiment further includes a positioning camera 5. The positioning camera 5 is configured to position the battery cells located on the first printing platen 32 and the battery cells located on the second printing platen 33 to obtain position information of the battery cells on the first printing platen 32 and the battery cells on the second printing platen 33. Optionally, the positioning camera 5 may be a matrix camera consisting of two sets of five cameras to capture and position the two battery cells separately.

[0103] Thus, the screen adjustment mechanism can drive the screen mounting bracket 131 to translate and rotate in the horizontal plane based on the position information of the battery cells located on the first printing plate 32, so that one of the first printing area 1321 and the second printing area 1322 of the screen 132 is adapted to the position of the battery cells located on the first printing plate 32. The three-axis alignment platform 34 can adjust the position of the second printing plate 33 based on the position information of the battery cells located on the second printing plate 33, so that the other of the first printing area 1321 and the second printing area 1322 is adapted to the position of the battery cells located on the second printing plate 33.

[0104] like Figures 8 to 9 As shown, optionally, the printing assembly 14 includes a mounting plate 140, a first lifting part 141, a second lifting part 142, a voice coil motor 143, a doctor blade module 144, and a return ink blade module 145, wherein: the first lifting part 141 and the second lifting part 142 are mounted side by side on the mounting plate 140. The voice coil motor 143 is connected to the movable part of the first lifting part 141, and the doctor blade module 144 is connected to the drive end of the voice coil motor 143. The first lifting part 141 is configured to drive the doctor blade module 144 to rise and fall, and when the doctor blade module 144 descends to its low position, it contacts the screen assembly 13. The voice coil motor 143 is configured to press the doctor blade module 144 onto the screen assembly 13 with a constant pressure. The return ink blade module 145 is connected to the movable part of the second lifting part 142, and the second lifting part 142 is configured to drive the return ink blade module 145 to rise and fall, and when the return ink blade module 145 descends to its low position, it approaches the screen assembly 13.

[0105] The optional printing process for the printed components 14 on the solar cells is as follows:

[0106] In the initial state, the printing component 14 is located at the first end (such as the left end) of the screen assembly 13, and the squeegee module 144 and the ink return knife module 145 are both located at a high position away from the screen assembly 13.

[0107] The first lifting unit 141 drives the doctor blade module 144 to a low position, so that the doctor blade module 144, driven by the voice coil motor 143, presses the screen assembly 13 with constant pressure and elasticity. At this time, the screen surface has been pre-coated with a paste layer. The ink return blade module 145 remains in a high position.

[0108] Next, the moving module 12 drives the printing assembly 14 to translate to the second end (such as the right end) of the screen assembly 13. During this process, the squeegee module 144 prints the printing paste onto the battery cell located below and in close contact with the screen assembly 13 with a constant squeegee force.

[0109] At this point, the first printing cycle is complete, and a printing paste pile is formed between the doctor blade module 144 and the ink return blade module 145.

[0110] Subsequently, the first lifting unit 141 drives the doctor blade module 144 to a high position, causing the doctor blade module 144 to disengage from the screen assembly 13. At the same time, the second lifting unit 142 lowers the ink return blade module 145 to a low position, so that a predetermined ink return gap is formed between the ink return blade module 145 and the screen assembly 13.

[0111] Next, the moving module 12 drives the printing assembly 14 to translate back to the first end (such as the left end) of the screen assembly 13. During this process, the ink return knife module 145 performs an ink return action, so that the printing paste is filled into the mesh of the screen assembly 13 and forms a uniform paste coating.

[0112] At this point, the next printing cycle can begin.

[0113] Since the first lifting part 141 that drives the squeegee module 144 to rise and fall is connected to the squeegee module 144 via a voice coil motor 143, when the first lifting part 141 drives the squeegee module 144 to fall, so that the squeegee module 144 contacts the screen assembly 13, the voice coil motor 143 presses the squeegee module 144 elastically onto the screen assembly 13 with constant pressure, thereby ensuring that the squeegee module 144 can print the printing paste onto the battery cell with a constant squeegee force, thereby improving printing consistency.

[0114] A voice coil motor is a commonly used constant force output device, and the value of its output driving force is proportional to the current applied to the coil. Therefore, in this embodiment, as long as the magnitude of the current applied to the coil of the voice coil motor remains constant, it can be ensured that the voice coil motor elastically presses the scraper module onto the screen assembly with constant pressure. The specific structure and working principle of the voice coil motor are well known to those skilled in the art, and will not be described in detail here for the sake of brevity.

[0115] Optionally, the first lifting unit 141 includes a first motor 1411, a first lead screw module 1412, and a sliding plate 1413. The sliding plate 1413 is slidably and vertically connected to the mounting plate 140 and is connected to the first motor 1411 mounted on the mounting plate 140 via the first lead screw module 1412. A voice coil motor 143 is mounted on the sliding plate 1413. The first motor 1411 is configured to drive the sliding plate 1413 to slide vertically along the mounting plate 140, thereby driving the voice coil motor 143 and the scraper module 144 to rise and fall.

[0116] The lead screw drive structure, consisting of the first motor 1411 and the first lead screw module 1412, ensures the lifting stability of the voice coil motor 143 and the scraper module 144, and also ensures the lifting stroke of the scraper module 144. Alternatively, other existing linear drive modules can be used to drive the slide plate 1413 to move up and down along the mounting plate 140, such as a cylinder drive module consisting of a cylinder, slide rail, and slider.

[0117] Optionally, the scraper module 144 includes a drive plate 1441, a scraper mounting bracket 1442, and a scraper 1443, wherein: the drive plate 1441 is slidably and vertically connected to the slide plate 1413. The drive plate 1441 is connected to the drive end of the voice coil motor 143, and the scraper mounting bracket 1442 is rotatably connected to the lower end of the drive plate 1441. The scraper 1443 is mounted on the scraper mounting bracket 1442.

[0118] Optionally, the squeegee mounting bracket 1442 is rotatably connected to the lower end of the drive plate 1441 via a pivot 1444. Thus, when the first lifting unit 141 drives the squeegee module 144 to descend into position, the squeegee mounting bracket 1443 completes adaptive rotation under its own gravity and / or the force of the screen assembly, thereby ensuring that the blade of the squeegee 1443 forms full contact with the screen assembly 13, improving the consistency of the squeegee 1443 in applying the printing paste.

[0119] Optionally, a first baffle plate 1445 is provided at both ends of the doctor blade mounting bracket 1443, and the doctor blade 1443 is located between the two first baffle plates 1445. By providing first baffle plates 1445 at both ends of the doctor blade mounting bracket 1442, the printing paste located in the moving direction of the doctor blade 1443 is gathered, preventing the printing paste from being driven out of the doctor blade's moving range.

[0120] Optionally, when the screen has two identical printing areas, in order to make the squeegee fit the screen more accurately, the squeegee 1443 can be set as two smaller squeegees, that is, the blades of the two squeegees extend along the same straight line, the two smaller squeegees are respectively installed at the lower end of two squeegee mounting brackets, and both squeegee mounting brackets can be rotatably installed at the lower end of the same drive plate 1441.

[0121] Optionally, the second lifting unit 142 includes a second motor 1421 and a second lead screw module 1422, and the ink return blade module 145 includes a connecting plate 1451 and an ink return blade 1452, wherein: the connecting plate 1451 is connected to the second motor 1421 via the second lead screw module 1422. The ink return blade 1452 is mounted on the connecting plate 1451.

[0122] The lead screw drive structure, consisting of the second motor 1421 and the second lead screw module 1422, ensures the stability of the lifting and lowering of the ink return knife module 145 and increases the lifting and lowering stroke of the ink return knife module 145. Of course, other existing linear drive structures for lifting and lowering the ink return knife module 145 can also be used, such as a cylinder drive module consisting of a cylinder, slide rail, and slider.

[0123] Optionally, a second baffle plate 1453 is formed at both ends of the ink return blade 1452. The second baffle plate 1453 realizes the gathering of the printing paste located in the moving direction of the ink return blade 1452, preventing the printing paste from being driven out of the moving range of the ink return blade, thereby improving the ink return effect of the ink return blade 1452.

[0124] Continue to refer to Figure 1 As shown in the illustration, this application also provides a battery cell printing apparatus, which includes an input mechanism 20, an output mechanism 30, and the battery cell printing device 10 provided in any of the above embodiments, wherein: the input mechanism 20 is configured to transport the battery cell to be printed to the printing table 3. The output mechanism 30 is configured to receive the printed battery cell from the printing table 3 and output the printed battery cell.

[0125] With the cooperation of the input mechanism 20, the battery cell printing device 10 and the output mechanism 30, the battery cell printing equipment provided in this application embodiment realizes the synchronous printing of two or more battery cells and realizes the automatic loading and unloading of battery cells, thereby improving the battery cell printing efficiency.

[0126] Optionally, both the input mechanism 20 and the output mechanism 30 are conveyor belt mechanisms. For example... Figure 11 As shown, in order to enable the printing table on the battery cell printing table 3 to connect with the conveyor belt to receive the battery cells to be printed from the input mechanism 20 and to transport the printed battery cells to the output mechanism 30, optionally, a conveyor belt clearance groove 36 is provided on the printing table.

[0127] When the printing table 3 moves into position towards the input mechanism 20 under the drive of the drive mechanism 4, the printing table 3 is located below the output end of the input mechanism 20. Subsequently, the drive mechanism 4 drives the printing table 3 to rise, and the output end of the input mechanism 20 can sink into the conveyor belt clearance groove 36 of the printing table, so that the battery cell on the output end of the input mechanism 20 falls onto the printing table.

[0128] When the printing table 3 moves into position toward the output mechanism 30 under the drive of the drive mechanism 4, the input end of the output mechanism 30 is inserted into the conveyor belt clearance groove 36 of the printing table. Subsequently, the drive mechanism 4 drives the printing table 3 to descend, and the printed battery cells on the printing table fall onto the input end of the output mechanism 30.

[0129] like Figure 10 As shown, optionally, the input mechanism 20 is provided with a brush assembly 21, an antistatic assembly 22, and an air knife assembly 23 on its conveying path. The brush assembly 21 is configured to brush away impurities on the surface of the battery cell, the antistatic assembly 22 is configured to remove static electricity from the surface of the battery cell, and the air knife assembly 23 is configured to blow air toward the battery cell to remove tiny impurities from its surface.

[0130] Optionally, the battery cell printing equipment in this embodiment of the application further includes a straightening mechanism 24 disposed on the conveying path of the input mechanism 20. The straightening mechanism 24 is configured to straighten the battery cells to be printed after passing through the straightening mechanism, so as to ensure that the printing table 3 can smoothly receive the battery cells to be printed from the input mechanism 20.

[0131] Of course, a straightening mechanism can also be set on the conveying path of the output mechanism 30, which can correct the position of the printed battery cells.

[0132] Optionally, the battery cell printing equipment in this embodiment of the application further includes an output detection camera disposed above the output mechanism 30, which realizes automatic detection of the printing quality of the printed battery cells.

[0133] This application also provides a method for printing battery cells, which includes the following steps:

[0134] S1. Load the first battery cell and the second battery cell onto the first printing table and the second printing table respectively.

[0135] S2. Position the first and second battery cells to obtain their actual positions.

[0136] S3. Align one of the first printing area and the second printing area of ​​the screen with the first battery cell, so that the position of one of the first printing area and the second printing area of ​​the screen matches that of the first battery cell.

[0137] S4. Align the second battery cell with the other of the first and second printing areas of the screen printing plate, so that the position of the second battery cell matches the other of the first and second printing areas of the screen printing plate.

[0138] S5. Control the first and second printing plates to move to the printing station.

[0139] S6. Simultaneous printing is performed on the first and second battery cells.

[0140] The battery cell printing method provided in this application embodiment can print two battery cells simultaneously and ensure that the two battery cells are aligned with the first printing area and the second printing area of ​​the screen, thereby ensuring the printing quality of the two battery cells.

[0141] The cell printing method in this application embodiment can be implemented by the cell printing apparatus in any of the preceding embodiments.

[0142] Optionally, the alignment of one of the first and second printing areas of the screen printing plate with the first battery cell in step S3 above specifically includes:

[0143] S31. Obtain the standard position of the pre-stored first battery cell.

[0144] After the screen is installed, its first and second printing areas have constant initial positions. The initial position of one of the first and second printing areas is adapted to the pre-stored standard position of the first battery cell. That is, if the first battery cell is loaded onto the first printing table in the standard position, the position of the first battery cell is adapted to one of the first and second printing areas.

[0145] However, in actual material preparation, it is difficult to ensure that the actual position of the first cell is completely consistent with the standard position when it is loaded onto the first printing station.

[0146] S32. Generate a first position adjustment strategy based on the actual position of the first battery cell and the standard position of the first battery cell.

[0147] If the actual position of the first battery cell is consistent with the actual position of the first battery cell, then the position of the first battery cell is already adapted to one of the first printing area and the second printing area. At this time, there is no need to adjust the position of the screen. In other words, the first position adjustment strategy generated at this time is to not perform the adjustment action.

[0148] If there is a deviation between the actual position of the first battery cell and its standard position, a first position adjustment strategy is generated based on this deviation. For example, if the deviation is +0.1mm on the X-axis, -0.3mm on the Y-axis, and +0.7° on the T-axis, the corresponding first position adjustment strategy is: control the screen to translate 0.1mm in the reverse direction along the X-axis, control the screen to translate 0.3mm in the forward direction along the Y-axis, and control the screen to rotate 0.7° counterclockwise.

[0149] S33. Adjust the position of the webpage according to the first position adjustment strategy.

[0150] After adjusting the position of the screen, one of the first printing area and the second printing area of ​​the screen can be adapted to the position of the first battery cell.

[0151] Optionally, the alignment of the second battery cell with the other of the first and second printing areas of the screen printing plate in step S4 specifically includes:

[0152] S41. Determine the target position of the second battery cell based on the actual position of the first battery cell.

[0153] Since the position of the second printing area of ​​the screen relative to the first printing area is fixed, when the two printing areas of the screen are respectively matched with the positions of the first and second battery cells, the position of the second battery cell relative to the first battery cell is also fixed. Therefore, based on the actual position of the first battery cell, the target position of the second battery cell can be determined.

[0154] After adjusting the second battery cell to the target position, it can be ensured that (when the battery cell arrives at the printing station) the two printing areas of the screen are adapted to the positions of the first and second battery cells respectively.

[0155] S42. Generate a second position adjustment strategy based on the actual position of the second battery cell and the target position of the second battery cell.

[0156] If the actual position of the second battery cell is the same as the actual position of the second battery cell, then the position of the second battery cell is already matched with the other position in the first and second printing areas, and there is no need to adjust the position of the second printing table. In other words, the second position adjustment strategy generated at this time is to not perform any adjustment action.

[0157] If there is a deviation between the actual position and the target position of the second battery cell, a second position adjustment strategy is generated based on the positional deviation. For example, if the positional deviation between the actual and target positions of the second battery cell is -0.2mm on the X-axis, +0.1mm on the Y-axis, and -0.5° on the T-axis (i.e., the angle on the horizontal plane), the corresponding second position adjustment strategy is: control the second printing plate to translate 0.5mm along the positive X-axis, control the second printing plate to translate 0.1mm along the negative Y-axis, and control the screen to rotate 0.5° clockwise. These three axial movements can be performed simultaneously.

[0158] S43. Adjust the position of the second printing pad according to the second position adjustment strategy.

[0159] After adjusting the position of the second printing plate, the other of the first and second printing areas of the screen can be adapted to the position of the second battery cell.

[0160] Optionally, before performing simultaneous printing on the first and second battery cells, the battery cell printing method in this application embodiment further includes:

[0161] The first and second printing plates are controlled to rise to a predetermined printing height, so that the battery cells on the first and second printing plates are close to the screen, thereby ensuring that the printing paste is effectively scraped onto the battery cells.

[0162] Optionally, after synchronous printing on the first and second battery cells, the battery cell printing method in this embodiment further includes controlling the first and second printing stations to descend and return to their original positions.

[0163] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A battery cell printing apparatus, characterized in that, The battery cell printing apparatus includes a printing mechanism, a mounting base, at least one printing stage mounted on the mounting base, and a driving mechanism corresponding to each printing stage, wherein: The drive end of the drive mechanism is connected to the corresponding printing table, the mounting base is provided with a printing station, and the drive mechanism is configured to drive the corresponding printing table to move to the printing station. The printing table includes a platform and at least two printing plates disposed on the platform. Each printing plate is used to support a battery cell. At least one printing plate has an independent three-axis alignment platform, which is configured to perform horizontal position adjustment on the printing plate. The printing mechanism is located at the printing station and is configured to simultaneously print at least two battery cells on a printing table that has been moved to the printing station.

2. The battery cell printing apparatus as described in claim 1, characterized in that: The at least two ink pads include a first ink pad and a second ink pad, wherein: The first printing pad is fixedly mounted on the carrier platform; The three-axis alignment platform is mounted on the platform, and the second printing plate is connected to the movable part of the three-axis alignment platform. The three-axis alignment platform is configured to drive the second printing plate to translate and rotate on the horizontal plane in order to adjust the position of the battery cell located on the second printing plate.

3. The battery cell printing apparatus as described in claim 2, characterized in that, Both the first and second printing pads have adsorption holes on their bearing surfaces for adsorbing battery cells.

4. The battery cell printing apparatus as described in claim 1, characterized in that, The drive mechanism includes a translation drive unit and a lifting drive unit, wherein the translation drive unit is connected to the mounting base, the lifting drive unit is connected to the movable part of the translation drive unit, and the first end of the platform is connected to the movable part of the lifting drive unit. The translation drive unit is configured to drive the platform to translate, and the lifting drive unit is configured to drive the platform to lift.

5. The battery cell printing apparatus as described in claim 4, characterized in that, The three-axis alignment platform is positioned at the first end near the stage.

6. The battery cell printing apparatus as described in claim 1, characterized in that, The printing tables are configured as 2n, wherein n printing tables are mounted on the first side wall of the mounting base via corresponding drive mechanisms, and the other n printing tables are mounted on the second side wall of the mounting base opposite to the first side wall via corresponding drive mechanisms, where n is 1 or 2.

7. The battery cell printing apparatus as described in claim 1, characterized in that, The printing mechanism includes a mounting frame, a moving module, a screen assembly, and a printing assembly, wherein: The movable module is mounted on the mounting frame, and the printing component is slidably connected to the mounting frame and connected to the movable part of the movable module; The screen printing assembly is mounted on the mounting frame and located below the printing assembly; The moving module is configured to drive the printing component, which rests against the screen assembly, to reciprocate along the screen assembly so that printing paste is printed through the screen assembly onto the battery cell located at the printing station.

8. The battery cell printing apparatus as described in claim 7, characterized in that, The screen assembly includes a screen mounting frame, a screen, and screen adjustment components, wherein: Both the screen mounting frame and the screen adjusting component are mounted on the mounting frame, and the screen mounting frame and the screen adjusting component are connected in a transmission manner. The screen is detachably mounted on the screen mounting frame, and a first printing area and a second printing area are arranged side by side on the screen; The screen adjustment component is configured to drive the screen mounting frame to translate and rotate on a horizontal plane, so that one of the first printing area and the second printing area of ​​the screen is adapted to the position of the battery cell located on the first printing table. The three-axis alignment platform is configured to adjust the position of the second printing table, so that the other of the first printing area and the second printing area is adapted to the position of the battery cell located on the second printing table.

9. The battery cell printing apparatus as described in claim 8, characterized in that, The battery cell printing apparatus further includes a positioning camera configured to position a battery cell located on the first printing table and a battery cell located on the second printing table. The screen adjustment component drives the screen mounting frame to translate and rotate on the horizontal plane based on the position information of the battery cell located on the first printing table, so that one of the first printing area and the second printing area of ​​the screen is adapted to the position of the battery cell located on the first printing table. The three-axis alignment platform is configured to adjust the position of the second printing plate based on the position information of the battery cell located on the second printing plate, so that the other of the first printing area and the second printing area is adapted to the position of the battery cell located on the second printing plate.

10. The battery cell printing apparatus as claimed in claim 7, characterized in that, The printing assembly includes a mounting plate, a first lifting section, a second lifting section, a voice coil motor, a doctor blade module, and an ink return blade module, wherein: The first lifting part and the second lifting part are mounted side by side on the mounting plate, and the mounting plate is slidably connected to the mounting frame; The voice coil motor is connected to the movable part of the first lifting part, the scraper module is connected to the drive end of the voice coil motor, the first lifting part is configured to drive the scraper module to rise and fall, the scraper module contacts the screen assembly when it descends to the low position, and the voice coil motor is configured to press the scraper module onto the screen assembly with constant pressure. The ink return blade module is connected to the movable part of the second lifting part, which is configured to drive the ink return blade module to rise and fall. When the ink return blade module descends to the low position, it approaches the screen assembly.

11. The battery cell printing apparatus as claimed in claim 1, characterized in that, The three-axis alignment platform includes a base, an X-axis moving component, a Y-axis moving component, and a T-axis rotating component, wherein: The X-axis moving component is slidably connected to the base. A first stator is provided on one of the base and the X-axis moving component, and a first moving component that matches the first stator is provided on the other of the base and the X-axis moving component. The first moving component and the first stator cooperate to drive the X-axis moving component to slide on the base along the X-axis direction. The Y-axis moving component is slidably connected to the X-axis moving component. A second stator is provided on one of the X-axis moving component and the Y-axis moving component, and a second mover that matches the second stator is provided on the other of the X-axis moving component and the Y-axis moving component. The second mover and the second stator cooperate to drive the Y-axis moving component to slide along the Y-axis direction on the X-axis moving component. The T-axis rotating component is rotatably connected to the Y-axis moving component. One of the Y-axis moving component and the T-axis rotating component is provided with an annular third stator, and the other of the Y-axis moving component and the T-axis rotating component is provided with a third moving component that matches the third stator. The third moving component and the third stator cooperate to drive the T-axis rotating component to rotate. The printing pad is connected to the T-axis rotating component.

12. A battery cell printing device, characterized in that, The solar cell printing equipment includes an input mechanism, an output mechanism, and the solar cell printing apparatus as described in any one of claims 1 to 11, wherein: The input mechanism is configured to deliver the battery cell to be printed onto the printing table of the printing station; The output mechanism is configured to receive printed battery cells from the printing table of the printing station and to output printed battery cells.

13. The battery cell printing equipment as described in claim 12, characterized in that, The input mechanism includes a brush assembly, an antistatic assembly, and an air knife assembly arranged along the conveying path of the input mechanism. The brush assembly is configured to brush away impurities from the surface of the battery cell, the antistatic assembly is configured to remove static electricity from the surface of the battery cell, and the air knife assembly is configured to blow air toward the battery cell.

14. The battery cell printing equipment as described in claim 12, characterized in that, The battery cell printing equipment also includes a straightening mechanism disposed on the conveying path of the input mechanism and / or the output mechanism, the straightening mechanism being configured to straighten the battery cells passing through the straightening mechanism; The battery cell printing equipment also includes an output inspection camera, which is configured to capture images to inspect the printing quality of the printed battery cells.

15. A method for printing battery cells, characterized in that, The battery cell printing method includes: The first and second battery cells are respectively loaded onto the first and second printing plates; Positioning is performed on the first and second battery cells to obtain their actual positions; One of the first printing area and the second printing area of ​​the screen is aligned with the first battery cell, so that one of the first printing area and the second printing area of ​​the screen is adapted to the position of the first battery cell; The second battery cell is aligned with the other of the first and second printing areas of the screen, so that the position of the second battery cell is adapted to the other of the first and second printing areas of the screen. Control the first and second printing plates to move to the printing station; The first and second battery cells are printed simultaneously.

16. The battery cell printing method as described in claim 15, characterized in that, The alignment of one of the first and second printing areas of the screen printing plate with the first battery cell includes: Obtain the pre-stored standard position of the first battery cell; A first position adjustment strategy is generated based on the actual position and the standard position of the first battery cell; The position of the screen is adjusted according to the first position adjustment strategy; Aligning the second battery cell with the other of the first and second printing areas of the screen printing plate includes: The target position of the second battery cell is determined based on the actual position of the first battery cell; A second position adjustment strategy is generated based on the actual position and the target position of the second battery cell; The second ink pad is positioned according to the second position adjustment strategy.

17. The battery cell printing method as described in claim 15, characterized in that, Before simultaneously printing the first and second battery cells, the battery cell printing method further includes: Control the first and second printing plates to rise to a predetermined printing height; After simultaneously printing the first and second battery cells, the battery cell printing method further includes: Control the first and second printing pads to descend and return to their original positions.

Images