Battery sheet printing device and printing method

Abstract

The present invention provides a cell printing device and a printing method. The cell printing device includes a cell input mechanism, a printing carrier mechanism, a printing mechanism and a cell output mechanism, wherein: the cell input mechanism and the cell output mechanism are arranged on a first axis, and a cell loading and unloading station is formed between the two, and the printing station and the cell loading and unloading station are located on a second axis perpendicular to the first axis. The printing carrier mechanism includes a translation mechanism and a first printing table and a second printing table, and the translation mechanism drives the first printing table and the second printing table to move along the second axis. The cell input mechanism transports the cell to be printed to the first printing table or the second printing table, the printing mechanism prints the cell to be printed at the printing station, and the cell output mechanism outputs the printed cell. The present invention alternately obtains the cell to be printed through two printing tables and translates the cell to be printed to the printing station for printing, thereby improving the efficiency of cell printing.

Description

Technical Field

[0001] The invention relates to the field of battery production, and in particular to a battery sheet printing device and a printing method. Background Art

[0002] During the production of battery components, it is necessary to print conductive materials on the surface of the battery cell to form grid lines for collecting current. At present, the printing of grid lines is generally completed by screen printing. The existing screen printing equipment is only equipped with one printing table and one printing station, and its printing efficiency is low. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a battery cell printing device, which adopts the following technical solutions:

[0004] A cell printing device comprises a cell input mechanism, a printing carrier mechanism, a printing mechanism and a cell output mechanism, wherein:

[0005] The cell input mechanism and the cell output mechanism are arranged on the first axis, a cell loading and unloading station is formed between the cell input mechanism and the cell output mechanism, a printing station is arranged on one side of the cell loading and unloading station, and the printing station and the cell loading and unloading station are arranged on a second axis perpendicular to the first axis;

[0006] The printing carrier mechanism includes a translation mechanism and a first printing table and a second printing table connected to the translation mechanism, and the translation mechanism is used to drive the first printing table and the second printing table to move along the second axis to achieve position switching of the first printing table and the second printing table between the printing station and the battery cell loading and unloading station;

[0007] The printing mechanism is arranged at the printing station;

[0008] The cell input mechanism transports the cells to be printed to the first printing table or the second printing table located at the cell loading and unloading station, the printing mechanism prints the cells to be printed at the printing station, and the cell output mechanism outputs the printed cells at the cell loading and unloading station.

[0009] The cell printing device provided by the present invention is provided with two movable printing tables. The two printing tables alternately obtain the cell to be printed from the cell loading and unloading station and translate the cell to be printed to the printing station to perform the printing operation. Compared with the traditional cell printing device, the present invention significantly improves the efficiency of cell printing.

[0010] In some embodiments, the first printing table is connected to the first driving end of the translation mechanism, and the second printing table is connected to the second driving end of the translation mechanism. When the first printing table is driven by the first driving end to move to the battery cell loading and unloading station, the second printing table is driven by the second driving end to move to the printing station. When the first printing table is driven by the first driving end to move to the printing station, the second printing table is driven by the second driving end to move to the battery cell loading and unloading station.

[0011] The translation mechanism drives the first printing table and the second printing table to switch alternately between the printing station and the battery cell loading and unloading station via the first driving end and the second driving end, thereby realizing loading and unloading operations and printing operations at the same time, reducing waiting time and improving work efficiency.

[0012] In some embodiments, the first printing station and the second printing station both include a carrying platform and a battery cell translation mechanism disposed on the carrying platform; the battery cell translation mechanism cooperates with the battery cell output mechanism to output the carried printed battery cells to the battery cell output mechanism; and the battery cell translation mechanism cooperates with the battery cell input mechanism to receive the unprinted battery cells from the battery cell input mechanism.

[0013] The printing table is provided with a cell translation mechanism that can drive the cell to translate toward the cell output mechanism. During the cell loading stage, the cell to be printed input from the cell input mechanism can be smoothly transferred to the printing table under the drive of the cell translation mechanism. During the cell unloading stage, the printed cell can be smoothly transferred to the cell output structure under the drive of the cell translation mechanism. In particular, by controlling the continuous driving of the cell translation mechanism, after the printing table conveys the printed cell to the cell output structure, it immediately obtains the next cell to be printed from the cell input mechanism, thereby continuously completing the unloading and loading actions and improving work efficiency.

[0014] In some embodiments, the battery cell translation mechanism includes a first roller, a second roller, a paper roll and a driving mechanism, wherein: the first roller is arranged at the first end of the supporting platform; the second roller is arranged at the second end of the supporting platform opposite to the first end; the paper roll is tightly attached to the surface of the supporting platform, one end of the paper roll is wound on the first roller, and the other end of the paper roll is wound on the second roller. When the first printing table and the second printing table move to the battery cell loading and unloading station: the first roller is close to the battery cell input mechanism, the second roller is close to the battery cell output mechanism, and the driving mechanism drives the first roller and the second roller to rotate, so as to drive the roll of paper to be wound onto the second roller after being released by the first roller, thereby outputting the printed battery cell carried on the support table to the battery cell output mechanism, and receiving the unprinted battery cell from the battery cell input mechanism; or, the second roller is close to the battery cell input mechanism, the first roller is close to the battery cell output mechanism, and the driving mechanism drives the first roller and the second roller to rotate, so as to drive the roll of paper to be wound onto the first roller after being released by the second roller, thereby outputting the printed battery cell carried on the support table to the battery cell output mechanism, and receiving the unprinted battery cell from the battery cell input mechanism.

[0015] A specific cell translation mechanism is provided, which drives the paper roll to move from the cell input mechanism toward the cell output mechanism through the cooperation of the first roller, the second roller and the driving mechanism, thereby outputting the printed cell on the carrier to the cell output mechanism, and receiving the unprinted cell from the cell input mechanism.

[0016] In some embodiments, the first printing table and the second printing table also include a lifting mechanism and a rotating mechanism, the lifting mechanism is connected to the driving end of the translation mechanism, the rotating mechanism is connected to the driving end of the lifting mechanism, and the supporting platform is connected to the driving end of the rotating mechanism; the lifting mechanism is used to drive the supporting platform to lift and lower; the rotating mechanism is used to drive the supporting platform to rotate in the horizontal direction.

[0017] By setting up a lifting mechanism, the lifting and lowering control of the carrier is realized, so that the carriers of the first printing platform and the second printing platform can avoid each other during the translation process, and the position adjustment of the battery cells on the carrier is realized in the vertical direction. By setting up a rotating mechanism, the angle adjustment of the battery cells on the carrier is realized in the horizontal direction.

[0018] In some embodiments, the loading and unloading station is located at a first height, and the printing station is located at a second height, and the second height is higher than the first height; after the support table receives the printed battery cells from the battery cell input mechanism, the support table moves to the bottom of the printing station under the drive of the translation mechanism, and rises to the second height under the drive of the lifting mechanism to reach the printing station; after the battery cells on the support table are printed by the printing mechanism, the support table descends from the second height to a third height under the drive of the lifting mechanism, and moves to the bottom of the loading and unloading station under the drive of the translation mechanism, and rises from the third height to the first height under the drive of the lifting mechanism to reach the loading and unloading station.

[0019] In this arrangement, when the carrier of the first printing station moves horizontally from the loading and unloading station toward the printing station at the first height, the carrier of the second printing station moves horizontally from the printing station toward the loading and unloading station at the third height, so that the carriers of the first printing station and the second printing station can avoid each other during the movement to prevent accidental collision. In addition, the carrier first moves to the bottom of the printing station, and then rises to the printing station under the drive of the lifting mechanism, so that the printing mechanism avoids the carrier, preventing the printing mechanism and the carrier from accidentally colliding.

[0020] In some embodiments, after the battery cells on the carrier are printed by the printing mechanism, when the contamination level of the roll paper tensioned on the printing table is lower than a predetermined value, the rotating mechanism is configured to drive the carrier to rotate 180° to achieve position switching of the first roller and the second roller.

[0021] When the contamination level of the roll paper tensioned on the printing table is lower than a predetermined value, the rotating mechanism drives the carrier table to rotate 180°, so that the position of the first roller and the second roller can be switched. In this way, the roll paper that was rolled up during the last loading and unloading process can be released again for the next loading and unloading, thereby realizing the reuse of the roll paper with a contamination level lower than the predetermined value and reducing production costs.

[0022] In some embodiments, the cell printing device further includes a first detection mechanism disposed above the loading and unloading station, the first detection mechanism being used to detect position information of the cell to be printed at the cell loading and unloading station and the contamination degree of the roll paper tensioned on the printing table.

[0023] By setting up the first detection mechanism, on the one hand, the position information of the battery cell to be printed is detected, and the printing table adjusts the position and horizontal angle of the battery cell based on the position information to ensure that printing can be carried out after the printing table reaches the printing station. On the other hand, the contamination degree of the roll paper is detected.

[0024] In some embodiments, the battery cell translation mechanism includes a conveyor belt driving mechanism and a conveyor belt, wherein: the conveyor belt driving mechanism is arranged on the supporting platform, and the conveyor belt driving mechanism is used to support the conveyor belt and drive the conveyor belt to convey; the upper belt body of the conveyor belt covers and is tensioned on the table surface of the supporting platform; when the first printing station and the second printing station move to the battery cell loading and unloading station: the conveyor belt driving mechanism drives the conveyor belt to convey, so that the upper belt body of the conveyor belt translates from the battery cell input mechanism toward the battery cell output mechanism, thereby outputting the printed battery cells carried on the supporting platform to the battery cell output mechanism, and receiving the unprinted battery cells from the battery cell input mechanism.

[0025] A cell translation mechanism with a simpler structure is provided, which drives a conveyor belt through a conveyor belt driving mechanism, thereby outputting the printed cell on the carrier to the cell output mechanism, and receiving the unprinted cell from the cell input mechanism.

[0026] In some embodiments, the conveyor belt drive mechanism includes a first conveyor belt pulley, a second conveyor belt pulley and a tensioning assembly, wherein: the first conveyor belt pulley is arranged at one end of the carrier platform close to the battery cell input mechanism; the second conveyor belt pulley is arranged at one end of the carrier platform close to the battery cell output mechanism; the tensioning assembly is arranged at the bottom of the carrier platform; the conveyor belt is wound around the first conveyor belt pulley and the second conveyor belt pulley and tensioned by the tensioning assembly.

[0027] A conveyor belt driving mechanism with a simple structure is provided to achieve support, tensioning and conveying of the conveyor belt.

[0028] In some embodiments, the conveyor belt is made of a transparent or translucent material, and air holes are provided on the conveyor belt.

[0029] The conveyor belt is made of light-transmitting and breathable materials. On the one hand, after a light source is set in the carrier, the light emitted by the light source can be irradiated onto the battery cell through the conveyor belt, which is conducive to the detection mechanism to implement the camera positioning of the battery cell. On the other hand, after an adsorption mechanism is set in the carrier, the adsorption mechanism can implement the adsorption of the battery cell through the conveyor belt.

[0030] In some embodiments, the cell printing device further includes a second detection mechanism disposed above the cell output mechanism, and the second detection mechanism is used to detect whether the printed cell on the cell output mechanism is qualified.

[0031] By setting up the second detection mechanism, the quality detection of the printed battery cells is achieved.

[0032] In some embodiments, the printing mechanism includes a mounting bracket, a scraper driving mechanism, a printing screen and a scraper assembly, wherein: the mounting bracket is arranged on the side of the translation mechanism, or the mounting bracket is arranged at one end of the translation mechanism close to the printing station and is located on the second axis. The printing screen is connected to the mounting bracket and is located at the printing station. The scraper driving mechanism is mounted on the mounting bracket and is located above the printing screen, the scraper assembly is connected to the driving end of the scraper driving mechanism and contacts the printing screen, and the scraper driving mechanism drives the scraper assembly to move along the first axis to apply the printing material to the printing screen.

[0033] A printing mechanism with a simple structure is provided, which realizes automatic printing of battery cells through the cooperation of a scraper driving mechanism, a printing screen and a scraper assembly.

[0034] A second aspect of the present invention provides a battery cell printing method, which adopts any of the above-mentioned battery cell printing devices to implement battery cell printing, and the battery cell printing method includes: a battery cell input mechanism transfers the battery cells to be printed toward the battery cell loading and unloading station along the first axis; the first printing table and the second printing table alternately receive the battery cells to be printed from the battery cell loading and unloading station; the first printing table and the second printing table respectively move the battery cells to be printed along the second axis to the printing station; the printing mechanism prints the battery cells; the first printing table and the second printing table alternately move the printed battery cells to the battery cell loading and unloading station; the battery cell output mechanism obtains the printed battery cells from the battery cell loading and unloading station and outputs the printed battery cells along the first axis.

[0035] In the cell printing method provided by the present invention, two printing tables alternately obtain the cell to be printed from the cell loading and unloading stations and translate the cell to be printed to the printing station to perform the printing operation, which significantly improves the cell printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the front structure of a cell printing device provided in the first embodiment of the present invention;

[0037] Figure 2 A left-side structural schematic diagram of a cell printing device provided in a first embodiment of the present invention;

[0038] Figure 3 A schematic diagram of a top view of the structure of a cell printing device provided in a first embodiment of the present invention in one implementation mode;

[0039] Figure 4 A schematic diagram of a top view of the structure of the cell printing device provided in the first embodiment of the present invention in another implementation manner;

[0040] Figure 5A schematic structural diagram of a first printing station in a cell printing device provided in a second embodiment of the present invention at a viewing angle;

[0041] Figure 6 A schematic structural diagram of the first printing station in the cell printing device provided in the second embodiment of the present invention at another viewing angle;

[0042] Figures 1 to 6 Included:

[0043] Battery cell input mechanism 10;

[0044] Printing bearing mechanism 20, translation mechanism 21, first printing platform 22, second printing platform 23, bearing platform 221, conveyor belt 222, first conveyor belt wheel 223, second conveyor belt wheel 224, tensioning assembly 225;

[0045] Printing mechanism 30, mounting bracket 31, printing screen 32, scraper assembly 33;

[0046] Battery cell output mechanism 40;

[0047] A first detection mechanism 50;

[0048] The first axis is X and the second axis is Y. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] The existing screen printing equipment is only provided with one printing table and one printing station, and its printing efficiency is low. In view of this, the present invention provides an improved cell printing device to improve the cell printing efficiency.

[0051] The following will introduce the cell printing device provided by the present invention by way of two embodiments:

[0052] First embodiment

[0053] like Figures 1 to 3 As shown, the cell printing device provided by the first embodiment of the present invention includes a cell input mechanism 10, a printing carrier mechanism 20, a printing mechanism 30 and a cell output mechanism 40, wherein:

[0054] The cell input mechanism 10 and the cell output mechanism 40 are arranged on the first axis X, and a cell loading and unloading station is formed between the cell input mechanism 10 and the cell output mechanism 40. A printing station is arranged on one side of the cell loading and unloading station, and the printing station and the cell loading and unloading station are arranged on a second axis Y perpendicular to the first axis X.

[0055] The printing carrier mechanism 20 includes a translation mechanism 21 and a first printing table 22 and a second printing table 23 connected to the translation mechanism 21. The translation mechanism 21 is used to drive the first printing table 22 and the second printing table 23 to move along the second axis Y to realize the position switching of the first printing table 22 and the second printing table 23 between the printing station and the battery cell loading and unloading station.

[0056] The printing mechanism 30 is arranged at the printing station.

[0057] The cell input mechanism 10 conveys the cell to be printed to the first printing table 22 or the second printing table 23 located at the cell loading and unloading station, the printing mechanism 30 prints the cell to be printed at the printing station, and the cell output mechanism 40 outputs the printed cell at the cell loading and unloading station.

[0058] It can be seen that the cell printing device provided in this embodiment is provided with two movable printing tables. The two printing tables alternately obtain the cells to be printed from the cell loading and unloading stations and translate the cells to be printed to the printing stations to perform the printing operation. Compared with the traditional cell printing device, the present invention significantly improves the efficiency of cell printing.

[0059] Optionally, the first printing table 22 is connected to the first driving end of the translation mechanism 21, and the second printing table 23 is connected to the second driving end of the translation mechanism 21, and the first driving end and the second driving end independently drive the first printing table 22 and the second printing table 23 to translate. For example, optionally, the translation mechanism 21 includes a translation guide rail, a first sliding block, a second sliding block, a first screw motor and a second screw motor, the first sliding block and the second sliding block are both slidably connected to the translation guide rail and are respectively connected to the driving rods of the first screw motor and the second screw motor, the first printing table 22 and the second printing table 23 are respectively installed on the first sliding block and the second sliding block, the first screw motor and the second screw motor independently drive the first sliding block and the second sliding block to translate, thereby driving the first printing table 22 and the second printing table 23 to translate.

[0060] During the printing process, when the first driving end drives the first printing table 22 to move to the cell loading and unloading station, the second driving end drives the second printing table 23 to move to the printing station. When the first driving end drives the first printing table 22 to move to the printing station, the second driving end drives the second printing table 23 to move to the cell loading and unloading station. That is, when one of the printing tables moves horizontally to the cell loading and unloading station to load and unload the cell, the other printing table carries the cell and moves horizontally to the printing station synchronously to receive the printing operation.

[0061] Optionally, the first printing station 22 and the second printing station 23 both include a carrier and a cell translation mechanism disposed on the carrier, the cell translation mechanism cooperates with the cell output mechanism 10 to output the carried printed cells to the cell output mechanism 40, and the cell translation mechanism cooperates with the cell input mechanism 10 to receive the unprinted cells from the cell input mechanism 10. That is, under the drive of the cell translation mechanism, the printed cells can be smoothly transferred to the cell output structure 40, and under the drive of the cell translation mechanism, the to-be-printed cells input from the cell input mechanism 10 can be smoothly transferred to the printing station.

[0062] In particular, by controlling the cell translation mechanism to continuously drive, the first printing station 22 and the second printing station 23 can continuously complete the unloading and loading actions, thereby further improving work efficiency. Taking the first printing station 22 as an example, when the first printing station 22 carries the printed cell and translates to the loading and unloading station, the cell translation mechanism drives the printed cell to move toward the cell output mechanism 40, and finally outputs the printed cell to the cell output mechanism 40. The cell translation mechanism remains in the driving state, thereby immediately receiving the unprinted cell from the cell input mechanism 10.

[0063] Optionally, the cell translation mechanism includes a first roller, a second roller, a paper roll and a driving mechanism, wherein: the first roller is arranged at a first end of the carrier platform, and the second roller is arranged at a second end of the carrier platform opposite to the first end. The paper roll is tightly on the surface of the carrier platform, one end of the paper roll is wound on the first roller, and the other end of the paper roll is wound on the second roller.

[0064] Taking the first printing station 22 as an example, when the first printing station 22 moves to the battery cell loading and unloading station:

[0065] The first roller is close to the cell input mechanism 10, and the second roller is close to the cell output mechanism 40. At this time, the control driving mechanism drives the first roller and the second roller to rotate, and the roll of paper is released by the first roller and then wound onto the second roller. In this process, the printed cell on the carrier is output to the cell output mechanism 40 driven by the roll of paper, and the cell to be printed input from the cell input mechanism 10 enters the carrier under the drive of the roll of paper. After completing the unloading and loading operations, the roll of paper originally tensioned on the carrier is wound onto the second roller.

[0066] Alternatively, the second roller is close to the cell input mechanism 10, the first roller is close to the cell output mechanism 40, and the driving mechanism drives the first roller and the second roller to rotate, so as to drive the roll of paper to be wound onto the first roller after being released by the second roller, thereby outputting the printed cell on the carrier to the cell output mechanism 40, and receiving the unprinted cell from the cell input mechanism 10. In this process, the printed cell on the carrier is output to the cell output mechanism 40 driven by the roll of paper, and the cell to be printed input from the cell input mechanism 10 enters the carrier under the drive of the roll of paper. After the unloading and loading operations are completed, the roll of paper originally tensioned on the carrier is rolled onto the first roller.

[0067] Optionally, the surface of the supporting platform is provided with adsorption holes, and the adsorption holes adsorb the battery cells carried on the supporting platform through the roll paper, thereby achieving adsorption and positioning of the battery cells and preventing the battery cells from slipping.

[0068] Since the first printing table 22 and the second printing table 23 are provided in this embodiment, the first printing table 22 and the second printing table 23 are alternately moved back and forth between the loading and unloading station and the printing station, and the bearing tables of the first printing table 22 and the second printing table 23 are easily collided during the movement. In addition, as is well known to those skilled in the art, in order to ensure the printing accuracy of the grid lines, the horizontal angle of the cell needs to be adjusted before printing the cell.

[0069] In order to solve these problems, the first printing table 22 and the second printing table 23 may further include a lifting mechanism and a rotating mechanism, wherein the lifting mechanism is connected to the driving end of the translation mechanism, the rotating mechanism is connected to the driving end of the lifting mechanism, and the bearing platform is connected to the driving end of the rotating mechanism. The lifting mechanism is used to drive the bearing platform to rise and fall, and the rotating mechanism is used to drive the bearing platform to rotate in the horizontal direction.

[0070] By controlling the lifting of the respective lifting mechanisms, the support platform of the first printing platform 22 and the support platform of the second printing platform 23 can be adjusted to different heights, so as to achieve the avoidance of the support platform of the first printing platform 22 and the support platform of the second printing platform 23 during the movement. Of course, by controlling the lifting of the lifting mechanism, the height of the battery sheet to be printed on the support platform can also be adjusted, so that the battery sheet to be printed can be sufficiently close to the printing screen of the printing mechanism.

[0071] By controlling the rotation of the respective rotating mechanisms, the angle of the battery sheet to be printed on the supporting platform of the first printing platform 22 and the supporting platform of the second printing platform 23 can be adjusted.

[0072] Optionally, the loading and unloading stations are located at a first height, and the printing station is located at a second height, which is higher than the first height. After the carrier receives the printed battery cell from the battery cell input mechanism, the carrier moves to the bottom of the printing station under the drive of the translation mechanism, and rises to the second height under the drive of the lifting mechanism to reach the printing station.

[0073] After the battery cells on the carrier are printed by the printing mechanism, the carrier is driven by the lifting mechanism to descend from the second height to the third height, and is driven by the translation mechanism to move to the bottom of the loading and unloading station, and is driven by the lifting mechanism to rise from the third height to the first height to reach the loading and unloading station.

[0074] With such an arrangement, when the support platform of the first printing table 22 is translated from the loading and unloading station toward the printing station at a first height, the support platform of the second printing table 23 is translated from the printing station toward the loading and unloading station at a third height, and vice versa. In this way, it is possible to ensure that the support platforms of the first printing table and the second printing table avoid each other during movement to prevent accidental collisions.

[0075] In addition, the carrying platform is first moved to the bottom of the printing station, and then rises to the printing station under the drive of the lifting mechanism, so that the printing mechanism avoids the carrying platform and prevents the printing mechanism and the carrying platform from accidentally colliding.

[0076] As described above, after the cell translation mechanism of the first printing table 22 and the cell translation mechanism of the second printing table 23 complete the unloading and loading operations of this round, the roll paper section originally tensioned on the supporting table is rolled up onto the first roller or the second roller close to the cell output mechanism 40.

[0077] As those skilled in the art know, the cost of roll paper is relatively high. Therefore, if the contamination level of the rolled paper segment after the previous round of unloading and loading operations is low, it is necessary to release the rolled paper segment again during the next round of unloading and loading operations to achieve the reuse of the rolled paper segment.

[0078] Based on this consideration, optionally, after the battery cells on the carrier are printed by the printing mechanism, it is detected whether the contamination of the roll paper stretched on the printing table is lower than a predetermined value. When the contamination of the roll paper stretched on the printing table is lower than the predetermined value, it means that the section of the roll paper can be reused. At this time, the rotating mechanism is configured to drive the carrier to rotate 180° to achieve the position switching of the first roller and the second roller, so that the roll paper section that was rolled up in the previous round can be released again during the unloading and loading operations in the next round.

[0079] When the contamination degree of the roll paper stretched on the printing table reaches a predetermined value, it means that the section of the roll paper can no longer be used. Here, the rotating mechanism does not perform a 180° rotation of the carrier table.

[0080] Take the first printing station 22 as an example:

[0081] The first printing table 22 carries the printed battery cells and moves horizontally to the loading and unloading stations. Assume that at this time, the first roller is close to the battery cell input mechanism 10, and the second roller is close to the battery cell output mechanism 40, that is, at this time, the first roller is the paper placing roller and the second roller is the paper receiving roller.

[0082] Check whether the contamination level of the paper roll currently tensioned on the support platform is lower than a predetermined value.

[0083] Start the previous round of unloading and loading: that is, control the driving mechanism to drive the first roller and the second roller to rotate, so that the paper roll segment tensioned on the support platform is rolled up onto the second roller, and the new paper roll segment released by the first roller is tensioned onto the support platform.

[0084] The first printing table 22 carries the obtained cell to be printed and moves to the printing station, and the printing mechanism prints the cell to be printed. After printing, the first printing table 22 carries the printed cell and moves toward the loading and unloading station again (return). In particular, during the return process, the rotating mechanism needs to choose whether to perform a 180° rotation of the loading station according to the contamination degree of the roll paper section supported on the loading station before the previous round of unloading and loading (at this time, the roll paper section has been rolled up on the second roller).

[0085] If the contamination level of the paper roll segment supported on the support table before the previous round of unloading and loading is lower than a predetermined value, the rotating mechanism drives the support table to rotate 180°. In this way, when the first printing table 22 returns to the unloading and loading station, the second roller is close to the battery cell input mechanism 10, and the first roller is close to the battery cell output mechanism 40. That is, at this time, the second roller is switched to the paper placing roller (note that at this time, the outermost layer of paper roll on the second roller is the used paper roll segment wound up during the previous round of unloading and loading), and the first roller is switched to the paper receiving roller.

[0086] Start the next round of unloading and loading: that is, control the driving mechanism to drive the first roller and the second roller to rotate, so that the paper roll segment stretched on the support table is rolled up onto the first roller, and the paper roll segment released by the second roller (that is, the used paper roll segment rolled up in the previous round, unloading and loading process) is stretched onto the support table again. In this way, the paper roll is reused.

[0087] If the contamination level of the paper roll supported on the support platform before the previous round of unloading and loading reaches a predetermined value, the rotating mechanism of the first printing platform 22 does not rotate the support platform during the return process. In this way, the paper roll used in the previous round of unloading and loading will not be reused.

[0088] Optionally, the cell printing device in this embodiment further includes a first detection mechanism 50 disposed above the loading and unloading station, the first detection mechanism 50 being used to detect position information of the cell to be printed at the cell loading and unloading station, and the contamination degree of the roll paper tensioned on the printing table.

[0089] By setting up the first detection mechanism 50, on the one hand, the position information of the battery cell to be printed can be detected. In the process of moving the battery cell to be printed to the printing station, the first printing table 22 and the second printing table 23 can adjust the position and horizontal angle of the battery cell to be printed based on the position information, thereby ensuring that the battery cell to be printed can be printed as soon as it arrives at the printing station. On the other hand, the first detection mechanism detects the contamination degree of the roll paper. Based on the contamination degree detection result, the first printing table 22 and the second printing table 23 can choose whether to rotate the carrier table 180° during the return journey.

[0090] Optionally, the cell printing device in this embodiment further includes a second detection mechanism disposed above the cell output mechanism 40 , and the second detection mechanism is used to detect whether the printed cell on the cell output mechanism 40 is qualified.

[0091] Continue to refer Figures 1 to 3 As shown, in this embodiment, the printing mechanism includes a mounting bracket 31, a scraper driving mechanism, a printing screen 32 and a scraper assembly 33, wherein: the mounting bracket 31 is arranged at one end of the translation mechanism 21 close to the printing station and is located on the second axis Y, and the printing screen 3 is connected to the mounting bracket 31 and is located at the printing station. The scraper driving mechanism is mounted on the mounting bracket 11 and is located above the printing screen 32, and the scraper assembly 33 is connected to the driving end of the scraper driving mechanism and contacts the printing screen 32, and the scraper driving mechanism drives the scraper assembly 33 to move along the first axis X to apply the printing material on the printing screen.

[0092] like Figure 4 As shown, considering the spatial layout of the device, the mounting bracket 31 can also be arranged on the side of the translation mechanism 21. In this way, the structure of the battery cell printing device will be more compact.

[0093] Second embodiment

[0094] The structure and working principle of the cell printing device provided in the second embodiment of the present invention are basically the same as those of the cell printing device in the first embodiment. For the sake of brevity, this specification only provides a targeted description of the different technical points therein. For the remaining identical technical points, please refer to the relevant description of the first embodiment above.

[0095] Compared with the first embodiment, the cell printing device in this embodiment adopts a cell translation mechanism with a simpler structure. Taking the first printing table 22 as an example, Figure 5 and Figure 6 As shown, the cell sheet translation mechanism includes a conveyor belt driving mechanism and a conveyor belt 222, wherein:

[0096] The conveyor belt driving mechanism is disposed on the bearing platform 221 , and is used to support the conveyor belt 222 and drive the conveyor belt 222 for conveying.

[0097] The upper belt body of the conveyor belt 222 covers and is tensioned on the surface of the supporting platform 221 .

[0098] When the first printing table 22 moves to the battery cell loading and unloading station:

[0099] The conveyor belt driving mechanism drives the conveyor belt 222 to convey, so that the upper side of the conveyor belt 222 moves from the battery cell input mechanism 10 toward the battery cell output mechanism 40, thereby outputting the printed battery cells carried on the carrier 221 to the battery cell output mechanism 40, and receiving the unprinted battery cells from the battery cell input mechanism 10.

[0100] Optionally, the conveyor belt driving mechanism includes a first conveyor belt pulley 223, a second conveyor belt pulley 224 and a tensioning assembly 225, wherein: the first conveyor belt pulley 223 is arranged at one end of the carrier platform close to the battery cell input mechanism 10. The second conveyor belt pulley 224 is arranged at one end of the carrier platform 221 close to the battery cell output mechanism 40. The tensioning assembly 225 is arranged at the bottom of the carrier platform 221. The conveyor belt 222 is wound around the first conveyor belt pulley 223 and the second conveyor belt pulley 224 and is tensioned by the tensioning assembly 225.

[0101] As described in the first embodiment above, the cell printing device in this embodiment also includes a first detection mechanism disposed above the loading and unloading station, and the first detection mechanism is used to detect the position information of the cell to be printed at the cell loading and unloading station, and the contamination degree of the conveyor belt covering the printing table. When the first detection mechanism detects that the contamination degree of the conveyor belt reaches a predetermined value, the currently contaminated conveyor belt 222 can be removed from the conveyor belt driving mechanism and replaced with a clean conveyor belt.

[0102] Optionally, the conveyor belt 222 is made of a light-transmitting and air-permeable material. Thus, after a light source is arranged in the carrier 221, the light emitted by the light source can be irradiated onto the battery cell through the conveyor belt 222, and the first detection mechanism can improve the camera positioning effect of the battery cell.

[0103] In addition, after the adsorption mechanism is disposed in the carrier 221 , the adsorption mechanism can adsorb the battery cell through the conveyor belt 222 to prevent the battery cell from deflecting or sliding during the conveying process.

[0104] It should be noted that the various optional implementations of the first embodiment described above are also applicable to this embodiment, provided that no conflicts exist, and will not be described in detail here.

[0105] The present invention has been described in sufficient detail with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the scope of protection of the present invention. The scope of protection claimed by the present invention is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A cell printing device, characterized in that: The cell printing device comprises a cell input mechanism, a printing carrier mechanism, a printing mechanism and a cell output mechanism, wherein: The cell input mechanism and the cell output mechanism are arranged on a first axis, a cell loading and unloading station is formed between the cell input mechanism and the cell output mechanism, a printing station is arranged on one side of the cell loading and unloading station, and the printing station and the cell loading and unloading station are located on a second axis perpendicular to the first axis; The printing carrier mechanism includes a translation mechanism and a first printing table and a second printing table connected to the translation mechanism, wherein the translation mechanism is used to drive the first printing table and the second printing table to move along the second axis to achieve position switching of the first printing table and the second printing table between the printing station and the battery cell loading and unloading station; The printing mechanism is arranged at the printing station; The cell input mechanism transports the cell to be printed to the first printing table or the second printing table located at the cell loading and unloading station, the printing mechanism prints the cell to be printed located at the printing station, and the cell output mechanism outputs the printed cell located at the cell loading and unloading station; The printing mechanism includes a mounting bracket, a scraper driving mechanism, a printing screen and a scraper assembly, wherein: The mounting bracket is arranged on the side of the translation mechanism, or the mounting bracket is arranged at one end of the translation mechanism close to the printing station and located on the second axis; The printing screen is connected to the mounting bracket and is located at the printing station; The scraper drive mechanism is installed on the mounting bracket and is located above the printing screen. The scraper assembly is connected to the driving end of the scraper drive mechanism and contacts the printing screen. The scraper drive mechanism drives the scraper assembly to move along the first axis to apply printing material to the printing screen.

2. The cell printing device according to claim 1, characterized in that: The first printing table is connected to a first driving end of the translation mechanism, and the second printing table is connected to a second driving end of the translation mechanism; When the first printing table is driven by the first driving end to move to the battery cell loading and unloading station, the second printing table is driven by the second driving end to move to the printing station; When the first printing table is driven by the first driving end to move to the printing station, the second printing table is driven by the second driving end to move to the battery cell loading and unloading station.

3. The cell printing device according to claim 1, characterized in that: The first printing station and the second printing station both include a carrier platform and a cell translation mechanism disposed on the carrier platform, wherein the cell translation mechanism cooperates with the cell output mechanism to output the carried printed cells to the cell output mechanism; and the cell translation mechanism cooperates with the cell input mechanism to receive unprinted cells from the cell input mechanism.

4. The cell printing device according to claim 3, characterized in that: The battery sheet translation mechanism comprises a first roller, a second roller, a paper roll and a driving mechanism, wherein: The first roller is disposed at the first end of the supporting platform; The second roller is disposed at a second end of the supporting platform opposite to the first end; The paper roll is tightly placed on the surface of the supporting platform, one end of the paper roll is wound around the first roller, and the other end of the paper roll is wound around the second roller; When the first printing station and the second printing station move to the battery cell loading and unloading station: The first roller is close to the cell input mechanism, the second roller is close to the cell output mechanism, the driving mechanism drives the first roller and the second roller to rotate, so as to drive the roll of paper to be wound onto the second roller after being released by the first roller, so as to output the printed cell carried on the support to the cell output mechanism, and receive the unprinted cell from the cell input mechanism; or The second roller is close to the battery cell input mechanism, and the first roller is close to the battery cell output mechanism. The driving mechanism drives the first roller and the second roller to rotate, so as to drive the roll of paper to be wound onto the first roller after being released by the second roller, thereby outputting the printed battery cell carried on the supporting platform to the battery cell output mechanism, and receiving the unprinted battery cell from the battery cell input mechanism.

5. The cell printing device according to claim 4, characterized in that: The first printing table and the second printing table further include a lifting mechanism and a rotating mechanism, the lifting mechanism is connected to the driving end of the translation mechanism, the rotating mechanism is connected to the driving end of the lifting mechanism, and the carrying platform is connected to the driving end of the rotating mechanism; The lifting mechanism is used to drive the carrying platform to rise and fall; The rotating mechanism is used to drive the supporting platform to rotate in a horizontal direction.

6. The cell printing device according to claim 5, characterized in that: The loading and unloading stations are located at a first height, and the printing station is located at a second height, and the second height is higher than the first height; After the carrying platform receives the printed battery cell from the battery cell input mechanism, the carrying platform is driven by the translation mechanism to move to the bottom of the printing station, and is driven by the lifting mechanism to rise to the second height to reach the printing station; After the battery cells on the carrier are printed by the printing mechanism, the carrier is driven by the lifting mechanism to descend from the second height to the third height, and driven by the translation mechanism to move to the bottom of the loading and unloading station, and driven by the lifting mechanism to rise from the third height to the first height to reach the loading and unloading station.

7. The cell printing device according to claim 5, characterized in that: After the battery cell on the carrier is printed by the printing mechanism, when the contamination level of the roll paper stretched on the printing table is lower than a predetermined value, the rotating mechanism is configured to drive the carrier to rotate 180° to achieve position switching of the first roller and the second roller.

8. The cell printing device according to claim 6, characterized in that: The cell printing device also includes a first detection mechanism disposed above the loading and unloading station, the first detection mechanism being used to detect position information of the cell to be printed at the cell loading and unloading station and the contamination degree of the roll paper stretched on the printing table.

9. The cell printing device according to claim 3, characterized in that: The cell sheet translation mechanism includes a conveyor belt driving mechanism and a conveyor belt, wherein: The conveyor belt driving mechanism is arranged on the carrying platform, and the conveyor belt driving mechanism is used to support the conveyor belt and drive the conveyor belt to transport; The upper belt body of the conveyor belt covers and is tensioned on the surface of the bearing platform; When the first printing station and the second printing station move to the battery cell loading and unloading station: The conveyor belt driving mechanism drives the conveyor belt to transport, so that the upper belt body of the conveyor belt translates from the battery cell input mechanism toward the battery cell output mechanism, thereby outputting the printed battery cells carried on the supporting platform to the battery cell output mechanism, and receiving the unprinted battery cells from the battery cell input mechanism.

10. The cell printing device according to claim 9, characterized in that: The conveyor belt driving mechanism comprises a first conveyor belt pulley, a second conveyor belt pulley and a tensioning assembly, wherein: The first conveyor belt wheel is arranged at one end of the carrier platform close to the battery cell input mechanism; The second conveyor belt wheel is arranged at one end of the carrying platform close to the battery cell output mechanism; The tensioning assembly is arranged at the bottom of the bearing platform; The conveyor belt is wound around the first conveyor belt wheel and the second conveyor belt wheel and is tensioned by the tensioning assembly.

11. The cell printing device according to claim 9, characterized in that: The conveyor belt is made of light-transmitting and air-permeable material.

12. The cell printing device according to claim 1, characterized in that: The cell printing device further comprises a second detection mechanism disposed above the cell output mechanism, and the second detection mechanism is used to detect whether the printed cell on the cell output mechanism is qualified.

13. A cell printing method, using the cell printing device according to any one of claims 1 to 12 to implement cell printing, characterized in that: The cell printing method comprises: The cell input mechanism transfers the cell to be printed toward the cell loading and unloading station along the first axis; The first printing station and the second printing station alternately receive the battery cells to be printed from the battery cell loading and unloading stations; The first printing station and the second printing station respectively move the battery sheet to be printed along the second axis to the printing station; The printing mechanism prints the battery cell; The first printing station and the second printing station alternately move the printed battery cells to the battery cell loading and unloading station; The cell output mechanism obtains the printed cell from the cell loading and unloading station and outputs the printed cell along the first axis.

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