Cylindrical battery cell printing production line

Abstract

The application discloses a cylindrical battery cell printing production line, and relates to the technical field of battery cell production, comprising: a rack; a first code scanning device for scanning the identification code of the cylindrical battery cell; a cleaning device configured to clean the outer surface of the cylindrical battery cell after scanning; a bearing plate connected with a first driving member, the first driving member being used to drive the bearing plate to rotate, the bearing plate being provided with a first mounting position and a second mounting position for positioning the cylindrical battery cell, the first mounting position and the second mounting position being symmetrically arranged with the bearing plate rotation shaft as the center; a printing device configured to spray insulating paint on the cylindrical battery cell; and a code spraying device configured to spray the identification code scanned by the first code scanning device on the cylindrical battery cell, wherein the bearing plate can drive the first mounting position and the second mounting position to pass through the printing device and the code spraying device in sequence when the bearing plate rotates. The application has the advantages of improving the repair efficiency and the qualified rate of the cylindrical battery cell.

Description

Technical Field

[0001] This invention relates to the field of battery cell manufacturing technology, and in particular to a cylindrical battery cell printing production line. Background Technology

[0002] In the production of cylindrical lithium batteries, some cells become defective due to flaws in the surface insulation layer or laser-engraved identification codes. Traditionally, these cells are usually scrapped, resulting in significant resource waste and cost pressure. With increasing demands for resource utilization and cost control, the industry has begun to experiment with repairing defective cells, i.e., removing the original insulation coating and identification codes and re-coating and marking them. However, existing repair processes have several significant problems: First, it is difficult to ensure the consistency of the cell's identity information before and after repair during the process of removing the original markings and re-marking. Second, the repair process usually relies on multiple machines to complete the process step by step, requiring frequent loading, unloading, and transfer of cells between different workstations, which is not only inefficient but also prone to secondary damage or contamination of the cell surface due to repeated handling. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a cylindrical battery cell printing production line, which can improve the rework efficiency and yield rate of cylindrical battery cells.

[0004] According to a first aspect of the present invention, a cylindrical battery cell printing production line includes: a frame, a first scanning device, a cleaning device, a carrier plate, a printing device, and an inkjet printer. The first scanning device is used to scan the identification code of the cylindrical battery cell; the cleaning device is connected to the frame and is configured to clean the outer surface of the scanned cylindrical battery cell; the carrier plate is rotatably mounted on the frame, and the carrier plate is connected to a first driving member, which drives the carrier plate to rotate. The carrier plate is provided with a first mounting position and a second mounting position for positioning the cylindrical battery cell, and the first mounting position and the second mounting position are symmetrically arranged about the rotation axis of the carrier plate; the printing device is connected to the frame and is configured to spray insulating coating onto the cylindrical battery cell; the inkjet printing device is connected to the frame and is configured to print the identification code scanned by the first scanning device onto the cylindrical battery cell. A second scanning device is provided on the side of the inkjet printing device, and the second scanning device is used to detect whether the identification code printed by the inkjet printing device is qualified; wherein, when the carrier plate rotates, it can drive the first mounting position and the second mounting position to pass sequentially through the printing device and the inkjet printing device.

[0005] According to an embodiment of the present invention, a cylindrical battery cell printing production line has at least the following beneficial effects: Information traceability is achieved using a first and a second barcode scanner, ensuring the consistency of the identification code before and after repair, and guaranteeing the traceability of the repaired battery cells. Furthermore, multiple processes such as barcode scanning, cleaning, printing insulating varnish, and code replication are integrated into a single production line. Printing insulating varnish and printing identification codes are completed at a single station through the rotation of the carrier plate, greatly reducing the number of times the battery cell is transferred between different devices. This significantly improves repair efficiency and effectively avoids surface damage and contamination of the battery cells that may result from multiple loading and unloading operations, thus improving repair quality.

[0006] According to some embodiments of the present invention, a ring track is provided on the frame; a ring transport device is provided on the frame, the ring transport device is connected to a platform, the platform is used to carry cylindrical battery cells, and the ring transport device is configured to drive the platform to move along the ring track; a transfer and flipping device is provided on the frame, the transfer and flipping device is configured to flip the cylindrical battery cells on the platform and the support plate, and to move the cylindrical battery cells on the platform to the support plate.

[0007] According to some embodiments of the present invention, the frame is provided with a rotary clamping device, the rotary clamping device including a first base and two second bases, the first base being vertically adjustable and connected to the frame, the second bases being horizontally slidably connected to the upper end of the first base, the first base being connected to a second driving member, the second driving member being used to drive the two second bases to move closer and further apart, a clamping block being horizontally rotatably mounted on the second base, and a third driving member being provided on the second base for driving the clamping block to rotate, the two clamping blocks being able to clamp the two ends of the cylindrical battery cell thereby driving the cylindrical battery cell to rotate.

[0008] According to some embodiments of the present invention, a first positioning fixture is provided on the platform, the first positioning fixture is provided with a first positioning groove and a second positioning groove, the cylindrical battery cell can be placed horizontally in the first positioning groove, and the cylindrical battery cell can be placed vertically in the second positioning groove. The first mounting position and the second mounting position are respectively formed by a second positioning fixture and a third positioning fixture connected to the upper end of the support plate. The first positioning fixture, the second positioning fixture and the third positioning fixture have the same structure.

[0009] According to some embodiments of the present invention, the second positioning fixture is vertically provided with a clearance hole, and the first base is provided with a material ejector device, which can pass upward through the clearance hole and push the cylindrical battery cell out of the first positioning groove.

[0010] According to some embodiments of the present invention, the printing device is mounted in an adjustable position on the frame, the frame is provided with a first curing lamp in an adjustable position, the printing device can be moved above the cylindrical battery cell to spray insulating coating onto the cylindrical battery cell, and the first curing lamp can be moved above the cylindrical battery cell to irradiate the cylindrical battery cell.

[0011] According to some embodiments of the present invention, the cylindrical battery cell printing production line further includes a finished product conveying line and a rework conveying line. The cylindrical battery cells with qualified identification codes are moved to the finished product conveying line by the transfer and flipping device, and the cylindrical battery cells with unqualified identification codes are moved to the rework conveying line by the transfer and flipping device.

[0012] According to some embodiments of the present invention, the coding device is mounted in an adjustable position on the frame, and a second curing lamp is provided in an adjustable position on the frame. The coding device can be moved above the cylindrical battery cell to spray an identification code onto the cylindrical battery cell, and the second curing lamp can be moved above the cylindrical battery cell to illuminate the cylindrical battery cell.

[0013] According to some embodiments of the present invention, the annular transport device includes a timing belt and a plurality of timing pulleys. The timing pulleys are rotatably mounted on the frame. The timing belt is wound around the timing pulleys. The shape of the timing belt is the same as that of the annular track. A push rod is horizontally arranged on the outer side of the timing belt. The push rod is connected to the platform to drive the platform to move.

[0014] According to some embodiments of the present invention, the cleaning apparatus includes a cleaning mechanism, a texturing mechanism, and a cleaning mechanism. The cleaning mechanism and the texturing mechanism respectively use lasers to clean and texturize the surface of the cylindrical battery cell. Both the cleaning mechanism and the texturing mechanism have contouring fixtures for clamping the cylindrical battery cell and rotating it. The moving path of the stage passes through the cleaning mechanism and the texturing mechanism. The cleaning mechanism includes a cleaning plasma generator and two supporting rotating shafts. The two supporting rotating shafts are arranged in parallel and rotatably mounted on the frame. The supporting rotating shafts are used to support the cylindrical battery cell and rotate it. The cleaning plasma generator is located above the supporting rotating shafts and is used to generate plasma to clean the cylindrical battery cell. The transfer and flipping device is configured to move the cylindrical battery cell on the upper end of the stage to the supporting rotating shafts and to move the cylindrical battery cell on the supporting rotating shafts to the carrier plate.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a transfer and turning device and a finished product conveying line according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a printing device and a carrier plate according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a rotary clamping device according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the installation of the second driving component according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of a first positioning fixture according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of a printing device according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a coding device according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of a ring-shaped transport device and a cleaning device according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of a timing belt and timing pulley according to an embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of a cleaning mechanism according to an embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of a texturing mechanism according to an embodiment of the present invention;

[0029] Figure 13 This is a schematic diagram of a cleaning mechanism according to an embodiment of the present invention;

[0030] Figure 14 This is a schematic diagram of a supporting rotating shaft and a clean plasma generator according to an embodiment of the present invention;

[0031] Figure 15 This is a schematic diagram of a first scanning device according to an embodiment of the present invention.

[0032] Icon labels:

[0033] Frame 100, circular track 110, cylindrical battery cell 101, first curing lamp 102, second curing lamp 103;

[0034] First scanning device 200, synchronous belt 210, synchronous pulley 220, push rod 211, platform 201, first positioning fixture 202, first positioning groove 203, second positioning groove 204, second positioning fixture 205, third positioning fixture 206, clearance hole 207, and ring transport device 230.

[0035] Cleaning device 300, cleaning mechanism 310, contouring tooling 311, texturing mechanism 320, cleaning mechanism 330, cleaning plasma generator 331, and supporting rotating shaft 332;

[0036] Support plate 400, first driving component 410;

[0037] Printing device 500, printing moving device 510;

[0038] Inkjet printing device 600, second scanning device 601, inkjet printing moving device 610;

[0039] 700-type transfer and tilting device;

[0040] Rotary clamping device 800, first base 810, second drive component 811, top material device 812, first lifting cylinder 813, second base 820, clamping block 821, third drive component 822;

[0041] Finished product conveyor line 900, rework conveyor line 910, air handling unit 920. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0045] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0046] Reference Figure 1 , Figure 2 , Figure 7 and Figure 15 As shown, an embodiment of the present invention provides a cylindrical battery cell printing production line, comprising: a frame 100, a first scanning device 200, a cleaning device 300, a carrier plate 400, a printing device 500, and an inkjet printer 600. The first scanning device 200 is used to scan the identification code of the cylindrical battery cell 101. The first scanning device 200 is a common handheld barcode scanner. The cleaning device 300 is connected to the frame 100. The cleaning device 300 is configured to clean the outer surface of the scanned cylindrical battery cell 101. The carrier plate 400 is horizontally arranged and rotatably mounted on the frame 100. The carrier plate 400 is connected to a first driving member 410, which is a servo motor. The first driving member 410 drives the carrier plate 400 to rotate. When rotating, the carrier plate 400 rotates 90 degrees sequentially to move to a first state, a second state, a third state, and a fourth state. The carrier plate 400 is provided with a first mounting position and a second mounting position for positioning the cylindrical battery cell 101.

[0047] A carrier plate 400 supports the cylindrical battery cell 101. The first and second mounting positions are symmetrically arranged around the rotation axis of the carrier plate 400. A printing device 500 is connected to the frame 100 and is used to spray insulating coating onto the cylindrical battery cell 101. A coding device 600 is connected to the frame 100 and is used to print identification codes on the cylindrical battery cell 101. A second scanning device 601 is bolted to the side of the coding device 600. The working principle of the second scanning device 601 is existing technology and will not be described in detail. The second scanning device 601 is used to detect whether the identification code printed by the coding device 600 is qualified. After the coding device 600 prints the identification code on the cylindrical battery cell 101, the second scanning device 601 reads the identification code on the cylindrical battery cell 101. If the second scanning device 601 reads the identification code, it can be determined that the identification code printing on the cylindrical battery cell 101 is qualified. If the second scanning device 601 cannot read the identification code, it can be determined that the identification code printing on the cylindrical battery cell 101 is unqualified. The inkjet printing device 600 is existing technology and will not be described in detail. When the carrier plate 400 rotates, it drives the first and second mounting positions to pass sequentially through the printing device 500 and the inkjet printing device 600. Information traceability is achieved using the first scanning device 200 and the second scanning device 601, ensuring the consistency of the identification code of the cylindrical battery cell 101 before and after repair, and guaranteeing the traceability of the repaired cylindrical battery cell 101. Furthermore, multiple processes such as scanning, cleaning, printing insulating varnish, and inkjet printing are integrated into a single production line. The printing of insulating varnish and the inkjet printing of the identification code are completed at a single station through the rotation of the carrier plate, greatly reducing the number of times the cylindrical battery cell 101 is transferred between different devices. This significantly improves repair efficiency and effectively avoids surface damage and contamination of the cylindrical battery cell 101 that may be caused by multiple loading and unloading operations, thus improving repair quality.

[0048] A ring track 110 is provided on the frame 100; a ring transport device 230 is connected to a platform 201, which carries cylindrical battery cells 101. The ring transport device 230 is configured to move the platform 201 along the ring track 110; the platform 201 has a feeding position, a cleaning position, and a texturing position. The transfer and flipping device 700 uses a robotic arm with grippers; the specific structure of the robotic arm is existing technology and will not be described in detail. The transfer and flipping device 700 is configured to flip the cylindrical battery cells 101 on the platform 201 and the support plate 400, and to move the cylindrical battery cells 101 on the platform 201 onto the support plate 400; the ring transport device 230 is responsible for the continuous conveying and preliminary cleaning of raw materials, and the printing device 500 and the coding device 600 perform printing and coding processes on the cylindrical battery cells 101 on the rotating support plate 400. When the carrier plate 400 is in the first state, the first mounting position is within the range of motion of the transfer and flipping device 700, and the second mounting position is below the printing device 500. When the carrier plate 400 is in the second state, the second mounting position is below the inkjet printer 600. When the carrier plate 400 is in the third state, the second mounting position is within the range of motion of the transfer and flipping device 700, and the first mounting position is below the printing device 500. When the carrier plate 400 is in the fourth state, the first mounting position is below the inkjet printer 600. Within the range of motion of the transfer and flipping device 700, the transfer and flipping device 700 can clamp and transfer the cylindrical battery cell 101 or clamp and flip it. The three processes of cleaning, printing, and inkjet printing can be performed simultaneously. This eliminates the waiting time common in traditional production lines, resulting in a large proportion of effective processing time and a small transfer time, greatly improving the overall production cycle time. The transfer and flipping device 700 integrates clamping, transfer, and flipping functions, transferring the cylindrical battery cell 101 between the ring transport device 230 and the carrier plate 400. It can also flip the cylindrical battery cell 101 for multi-sided cleaning and printing. This layout combines ring-shaped linear flow with rotary processing, resulting in a very compact system structure and small footprint. While ensuring production efficiency and product quality, it achieves a compact equipment structure and a high degree of automation.

[0049] Reference Figure 4 As shown, in some embodiments, the frame 100 is provided with a rotary clamping device 800, which includes a first base 810 and two second bases 820. The first base 810 is connected to the frame 100 in an adjustable position, and a first lifting cylinder 813 is provided on the frame 100 to drive the first base 810 to lift.

[0050] The second base 820 is horizontally slidably connected to the upper end of the first base 810. The second base 820 is connected to the first base 810 via a linear guide rail. The first base 810 is connected to a second driving component 811, which is a cylinder or a lead screw linear module. The second driving component 811 is used to drive the two second bases 820 to move closer and further apart. Two second driving components 811 are symmetrically arranged to drive the two second bases 820 to move respectively. A clamping block 821 is horizontally rotatably mounted on the second base 820. The shape of the clamping block 821 is adapted to the cylindrical battery cell 101 to stably clamp the cylindrical battery cell 101. The side of the two clamping blocks 821 that is close to each other is provided with a silicone or rubber anti-slip layer to increase the friction between the clamping block 821 and the cylindrical battery cell 101. The second base 820 is provided with a third driving component 822 for driving the clamping block 821 to rotate. The third driving component 822 is connected to the clamping block 821 via a coupling.

[0051] The third driving component 822 is selected from either a rotary servo motor or a rotary stepper motor. The two clamping blocks 821 can clamp the two ends of the cylindrical battery cell 101, thereby enabling the third driving component 822 to drive the cylindrical battery cell 101 to rotate. When the support plate 400 rotates, the first lifting cylinder 813 drives the first base 810 to descend, so that the height of the clamping blocks 821 is lower than the height of the support plate 400, preventing the clamping blocks 821 from obstructing the moving support plate 400 or the cylindrical battery cell 101.

[0052] When the support plate 400 is in the first state, the vertical projection of the second mounting position lies between the vertical projections of the two clamping blocks 821. The clamping blocks 821 can rise to the same height as the cylindrical battery cell 101 to clamp the cylindrical battery cell 101. When the support plate 400 is in the third state, the vertical projection of the first mounting position lies between the vertical projections of the two clamping blocks 821. The clamping blocks 821 can rise to the same height as the cylindrical battery cell 101 to clamp the cylindrical battery cell 101.

[0053] Reference Figure 3 , Figure 5 and Figure 6As shown, in some embodiments, a first positioning fixture 202 is provided on the stage 201. The first positioning fixture 202 is bolted to the stage 201. The first positioning fixture 202 is provided with a first positioning groove 203 and a second positioning groove 204 adapted to the shape of the cylindrical battery cell 101. The first positioning groove 203 is semi-cylindrical, allowing the cylindrical battery cell 101 to be placed horizontally in the first positioning groove 203 and vertically in the second positioning groove 204. The second positioning groove 204 is cylindrical, and when the cylindrical battery cell 101 is placed vertically, its lower end is embedded in the second positioning groove 204. To reduce the volume of the first positioning fixture 202, the second positioning groove 204 is located within the first positioning groove 203. The first mounting position and the second mounting position are formed by a second positioning fixture 205 and a third positioning fixture 206 connected to the upper end of the support plate 400, respectively. For ease of maintenance, the first positioning fixture 202, the second positioning fixture 205, and the third positioning fixture 206 have the same structure.

[0054] Reference Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the second positioning fixture 205 has a vertically opening relief hole 207, and the support plate 400 also has a corresponding hole to allow the ejector device 812 to pass through. The first base 810 is equipped with an ejector device 812, which is a cylinder. The telescopic end of the cylinder is upward-facing, and the upper end of the ejector device 812 has a groove with the same curvature as the side wall of the cylindrical battery cell 101. The groove supports and positions the cylindrical battery cell 101. The ejector device 812 can pass upward through the relief hole 207 and push the cylindrical battery cell 101 out of the first positioning groove 203. Since the two clamping blocks 821 clamp the horizontally placed cylindrical battery cell 101 from the horizontal direction, and the horizontally placed part of the cylindrical battery cell 101 is embedded in the first positioning groove 203, the ejector device 812 needs to raise the cylindrical battery cell 101 first, and then use the clamping blocks 821 to clamp the cylindrical battery cell 101. It is foreseeable that the top material device 812 can also be integrated into the second positioning fixture 205.

[0055] Reference Figures 2 to 8 As shown, in some embodiments, the printing device 500 is mounted in an adjustable position on the frame 100. The specific structure of the printing device 500 is prior art and will not be described in detail. The printing device 500 is mounted on the frame 100 via a printing moving device 510. The printing moving device 510 includes at least three mutually perpendicular and sequentially connected linear slide modules. The specific structure of the linear slide modules is prior art and will not be described in detail. The linear slide modules drive the printing device 500 to move in three-dimensional space to facilitate uniform spraying of the insulating coating.

[0056] Reference Figure 7As shown, in some embodiments, the printing moving device 510 may also be a device capable of three-dimensional spatial movement, such as a robotic arm. A first curing lamp 102, which is an ultraviolet lamp, is adjustable in position on the frame 100. The insulating coating is a UV insulating coating that can be cured under ultraviolet light. The first curing lamp 102 is mounted on the frame 100 via two linear slide modules. The printing device 500 can move above the cylindrical battery cell 101 and spray the insulating coating onto it. The first curing lamp 102 can move above the cylindrical battery cell 101 and irradiate it. The printing device 500 first moves above the cylindrical battery cell 101 to spray the insulating coating, then moves to a position that avoids the top of the cylindrical battery cell 101, and then the first curing lamp 102 moves above the cylindrical battery cell 101 again to irradiate it, thus curing the insulating coating on the surface of the cylindrical battery cell 101. The cylindrical battery cell 101 can undergo both the spraying of insulating coating and curing processes in the same location, which helps to improve production efficiency.

[0057] Reference Figure 2 As shown, in some embodiments, the cylindrical battery cell printing production line further includes a finished product conveyor line 900 and a rework conveyor line 910, with the conveying directions of the finished product conveyor line 900 and the rework conveyor line 910 being the same. The finished product conveyor line 900 and the rework conveyor line 910 are at least partially located within the activity range of the transfer and flipping device 700 to facilitate receiving cylindrical battery cells 101 from the transfer and flipping device 700. The finished product conveyor line 900 and the rework conveyor line 910 are selected from belt conveyors or chain conveyors. After the coding device 600 prints the code on the cylindrical battery cell 101, the second scanning device 601 reads the identification code on the cylindrical battery cell 101. If the second scanning device 601 reads the identification code, it can determine that the printing of the identification code on the cylindrical battery cell 101 is qualified. If the second scanning device 601 does not read the identification code, it can determine that the printing of the identification code on the cylindrical battery cell 101 is unqualified. Cylindrical cells 101 with valid identification codes are moved by the transfer and flipping device 700 to the finished product conveyor line 900 and transported to the next process. Cylindrical cells 101 with invalid identification codes are moved by the transfer and flipping device 700 to the rework conveyor line 910 and transported to another process. This achieves automatic detection and sorting of products, outputting valid and invalid cylindrical cells 101 from two different conveyor lines to the next process.

[0058] Reference Figure 2 , Figure 3 and Figure 8As shown, in some embodiments, the coding device 600 is mounted in an adjustable position on the frame 100. The coding device 600 is mounted on the frame 100 via a coding moving device 610, which includes at least two mutually perpendicular and sequentially connected linear slide modules. It is foreseeable that the coding moving device 610 can also be a device capable of three-dimensional spatial movement, such as a robotic arm. A second curing lamp 103 is adjustablely positioned on the frame 100. The second curing lamp 103 is mounted on the frame 100 via a linear slide module and can be driven by the linear slide module to perform horizontal linear movement. The coding device 600 can move above the cylindrical battery cell 101 to spray identification codes onto the cylindrical battery cell 101, and the second curing lamp 103 can move above the cylindrical battery cell 101 to irradiate the cylindrical battery cell 101. The ink used by the coding device 600 is UV ink, which can be cured under ultraviolet light. The coding device 600 first moves above the cylindrical battery cell 101 to spray the identification code. Then, the coding device 600 moves to a position that avoids the cylindrical battery cell 101. Then, the second curing lamp 103 moves above the cylindrical battery cell 101 to irradiate the cylindrical battery cell 101, so that the identification code on the surface of the cylindrical battery cell 101 is cured. The cylindrical battery cell 101 can perform the two processes of spraying the identification code and curing in the same position, which is conducive to improving production efficiency.

[0059] Reference Figure 9 and Figure 10 As shown, in some embodiments, the annular transport device 230 includes a synchronous belt 210 and multiple synchronous pulleys 220. The synchronous pulleys 220 are rotatably mounted on the frame 100 and are connected to a servo motor via a coupling. The servo motor drives the synchronous belt 210 to move through the synchronous pulleys 220. The synchronous belt 210 is wound around the synchronous pulleys 220, which are located inside the synchronous belt 210, thus changing the direction of the synchronous belt 210. The shape of the synchronous belt 210 is the same as that of the annular track 110. A push rod 211 is horizontally arranged on the outer side of the synchronous belt 210 and is connected to the synchronous belt 210 by adhesive. Two locking bolts are threaded to the side of the platform 201 near the synchronous belt 210, and the locking bolts are vertically arranged. Part of the push rod 211 extends between the two locking bolts. The push rod 211 is connected to the platform 201 to move the platform 201. When the push rod 211 moves, it is opposite to the locking bolt to push the platform 201 to move along the circular track 110.

[0060] Reference Figure 1 , Figure 9 and Figure 10As shown, in some embodiments, the cleaning apparatus 300 includes a cleaning mechanism 310 and a texturing mechanism 320. The cleaning mechanism 310 and the texturing mechanism 320 respectively use lasers to clean and texturize the surface of the cylindrical battery cell 101. Both the cleaning mechanism 310 and the texturing mechanism 320 have a contouring fixture 311 for clamping the cylindrical battery cell 101 and driving it to rotate. The structure of the contouring fixture 311 is the same as that of the rotary clamping device 800. Both serve to drive the cylindrical battery cell 101 to rotate so as to clean or print the sides evenly. The moving path of the stage 201 passes through the cleaning mechanism 310 and the texturing mechanism 320. The cleaning mechanism 310 includes a laser generator and a cleaning plasma generator. The cleaning mechanism 310 uses lasers or plasmas to clean the surface of the cylindrical battery cell 101. The structures of the cleaning mechanism 310 and the texturing mechanism 320 are similar. Laser and plasma cleaning and laser and plasma texturing are conventional technical means in the field of battery cell production, and therefore will not be described in detail. It is foreseeable that the cleaning plasma generator is connected to the frame 100 via a second lifting mechanism, which is a conventional combination of a motor, gears, and racks. The function of the second lifting mechanism is as follows: when the platform 201 moves along the circular track 110, the second lifting mechanism lifts the cleaning plasma generator to avoid the moving path of the platform 201. After the platform 201 moves to a preset position, the second lifting mechanism lowers the cleaning plasma generator, bringing the cleaning plasma generator 331 closer to the cylindrical battery cell 101. A cleaning exhaust hood is provided on the side of the cleaning plasma generator, and this hood is connected to an air handling unit 920. The air handling unit 920 extracts and absorbs harmful fumes generated during the cleaning and texturing process. The specific structure of the air handling unit 920 is existing technology and will not be described in detail here.

[0061] Reference Figures 11 to 14As shown, in some embodiments, the cleaning device 300 further includes a cleaning mechanism 330, which includes a cleaning plasma generator 331 and two supporting rotating shafts 332. The two supporting rotating shafts 332 are arranged in parallel and rotatably mounted on the frame 100. Each supporting rotating shaft 332 has a pulley at its end. A fourth driving component, which is a servo motor, is mounted on the frame 100. The fourth driving component drives the two supporting rotating shafts 332 to rotate in the same direction via a belt. The distance between the two supporting rotating shafts 332 is less than the diameter of the cylindrical battery cell 101. The supporting rotating shafts 332 support the cylindrical battery cell 101 and drive it to rotate. A support ring may also be provided on the supporting rotating shafts 332 to reduce the contact area with the cylindrical battery cell 101 and prevent incomplete cleaning. A through-beam photoelectric switch is bolted to the frame 100 to detect whether the cylindrical battery cell 101 is placed above the supporting rotating shafts 332. A cleaning plasma generator 331 is located above the supporting rotation shaft 332. The cleaning plasma generator 331 generates plasma to clean the cylindrical battery cell 101. A fifth driving component, which is a linear slide module, is installed on the frame 100. The cleaning plasma generator 331 can move horizontally under the action of the fifth driving component. The transfer and flipping device 700 is configured to move the cylindrical battery cell 101 on the upper end of the stage 201 to the supporting rotation shaft 332, and to move the cylindrical battery cell 101 on the supporting rotation shaft 332 to the carrier plate 400. Figure 14 As shown, during the process of the transfer and flipping device 700 placing the cylindrical battery cell 101 onto the supporting rotating shaft 332, the fifth driving member drives the clean plasma generator 331 to move to a position that avoids the supporting rotating shaft 332 in the vertical direction. Figure 13 As shown, after the cylindrical battery cell 101 is placed on the supporting rotating shaft 332, the fifth driving component drives the cleaning plasma generator 331 to approach the cylindrical battery cell 101 and perform cleaning. A cleaning exhaust hood is provided on the side of the cleaning plasma generator 331, which is connected to an air handling unit 920. The air handling unit 920 extracts and absorbs the harmful fumes generated during the cleaning process. The specific structure of the air handling unit 920 is prior art and will not be described in detail.

[0062] In some embodiments, the texturing mechanism 320 has a texturing position, and a cleaning position is formed above the supporting rotating shaft 332. The cleaning mechanism 310 has a cleaning position. The annular transport device 230 also has a loading position, and the transfer and flipping device 700 has a first flipping position and a second flipping position. The transfer and flipping device 700 can transfer the cylindrical battery cell 101 between the first flipping position and the cleaning position. The annular transport device 230 can drive the cylindrical battery cell 101 at the upper end of the platform 201 to the first flipping position. Four positioning cylinders are bolted to the frame 100, and the upper end of the telescopic end of the positioning cylinder is chamfered. The telescopic end of the positioning cylinder can be inserted upward into the positioning notch on the platform 201. The four positioning cylinders are used to fix the platform 201 in the loading position, cleaning position, texturing position, and first flipping position, respectively. During long-term use, the synchronous belt 210 will inevitably wear and produce transmission errors. The positioning cylinders play a positioning role to ensure that the positioning accuracy of the platform 201 remains accurate each time.

[0063] In some embodiments, a texturing visual positioning device is provided on the frame. Before texturing by the texturing mechanism 320, the texturing visual positioning device is used to photograph and position the cylindrical battery cell 101. Then, the cylindrical battery cell 101 is texturized according to its position to achieve precise texturing and improve processing quality. A printing visual positioning device is also provided on the frame. Before printing by the printing device 500, the printing visual positioning device is used to photograph and position the cylindrical battery cell 101. Then, the cylindrical battery cell 101 is printed according to its position to achieve precise printing and improve processing quality.

[0064] Usage steps:

[0065] Step 1: The circular transport device 230 drives the platform 201 to the loading position. The operator manually scans the barcode of the cylindrical battery cell 101 and then places the cylindrical battery cell 101 horizontally on the first positioning fixture 202.

[0066] Step 2: The ring transport device 230 drives the platform 201 to the cleaning position, the contour tooling 311 drives the cylindrical battery cell 101 to rotate, and the cleaning mechanism 310 generates laser and plasma to clean the side of the cylindrical battery cell 101 and remove the dirt from the side of the cylindrical battery cell 101.

[0067] Step 3: The stage 201 moves to the texturing position, the contouring fixture 311 drives the cylindrical battery cell 101 to rotate, and the texturing mechanism 320 generates laser and plasma to texturize the side of the cylindrical battery cell 101, thereby improving the bonding ability between the side of the cylindrical battery cell 101 and the insulating coating.

[0068] Step 4: The stage 201 moves to the first flip position, and the transfer flipping device 700 moves the cylindrical battery cell 101 on the stage 201 at the first flip position to the cleaning position. The supporting rotating shaft 332 is driven to rotate by the motor, thereby driving the cylindrical battery cell 101 to rotate. The cleaning mechanism 330 cleans the side of the cylindrical battery cell 101.

[0069] Step 5: The transfer and flipping device 700 clamps the cylindrical battery cell 101 located in the clean position onto the stage 201 located in the first flipping position, and places the cylindrical battery cell 101 vertically so that one end face of the cylindrical battery cell 101 faces vertically upward.

[0070] Step 6: The ring conveyor 230 drives the platform 201 past the loading position and to the cleaning position. The cleaning mechanism 310 generates laser and plasma to clean the upward-facing end face of the cylindrical battery cell 101.

[0071] Step 7: The stage 201 moves to the texturing position, and the texturing mechanism 320 generates laser and plasma to texturize the upward-facing end face of the cylindrical cell 101.

[0072] Step 8: The stage 201 moves to the first flip position. After the transfer and flipping device 700 picks up the cylindrical battery cell 101, it is vertically flipped 180 degrees and then placed back on the stage 201, so that the other end face of the cylindrical battery cell 101 is facing up.

[0073] Step 9: The ring transport device 230 drives the platform 201 past the loading position and to the cleaning position. The cleaning mechanism 310 generates laser and plasma to clean the upward-facing end face of the cylindrical battery cell 101.

[0074] Step 10: The stage 201 moves to the texturing position, and the texturing mechanism 320 generates laser and plasma to texturize the upward-facing end face of the cylindrical battery cell 101.

[0075] Step 11: The stage 201 moves to the first flip position. After the transfer and flipping device 700 picks up the cylindrical battery cell 101, it is placed horizontally on the first mounting position above the support plate 400 in the first state.

[0076] Step 12: The printing device 500 forms a printing position, the inkjet printer 600 forms an inkjet printer position, and when the carrier plate 400 is in the first state, the first mounting position is within the range of motion of the transfer and flipping device 700, and the second mounting position is below the printing device 500. The printing device 500 prints insulating coating on the cylindrical battery cell 101.

[0077] Step 13: Then the carrier plate 400 is rotated to the second state, the second mounting position is moved below the inkjet printer 600, the inkjet printer 600 prints the identification code on the cylindrical cell 101, and then the second scanning device 601 scans the identification code.

[0078] Step Fourteen: The carrier plate 400 rotates to the third state, the second mounting position is within the range of motion of the transfer and flipping device 700, the transfer and flipping device 700 picks up the cylindrical battery cell 101 that has been inkjet-printed on the second mounting position, and moves the cylindrical battery cell 101 to one of the finished product conveying line 900 and the rework conveying line 910 according to the scanning result of the second scanning device 601.

[0079] Step 15: The transfer and flipping device 700 picks up a roughened cylindrical battery cell 101 from the stage 201 and moves the cylindrical battery cell 101 to the second mounting position. At the same time, the printing device 500 prints insulating coating on the cylindrical battery cell 101 in the first mounting position.

[0080] Step 16: When the carrier plate 400 is in the fourth state, the first mounting position is below the inkjet printer 600. The inkjet printer 600 prints the identification code on the cylindrical cell 101, and then the second scanning device 601 scans the identification code.

[0081] Step 17: The carrier plate 400 continues to rotate to the first state, the transfer and flipping device 700 picks up the cylindrical battery cell 101 that has been inkjet-printed on the first mounting position, and moves the cylindrical battery cell 101 to one of the finished product conveying line 900 and rework conveying line 910 according to the scanning result of the second scanning device 601.

[0082] Step 18: The transfer and flipping device 700 picks up a roughened cylindrical battery cell 101 from the stage 201 and moves the cylindrical battery cell 101 to the first mounting position. At the same time, the printing device 500 prints insulating coating on the cylindrical battery cell 101 at the second mounting position.

[0083] Step 19: The carrier plate 400 cycles through the first, second, third, and fourth states to complete the printing and coding of the cylindrical battery cell 101.

[0084] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A cylindrical cell printing production line, characterized by, The utility model relates to a kind of battery identification code printing device, including: Rack (100); First code scanning device (200), for scanning cylindrical battery (101) identification code; Cleaning device (300) is connected to the rack, the cleaning device (300) is configured to: clean the outer surface of the cylindrical battery (101) after being scanned, and remove original insulation coating and identification code; Bearing plate (400) is rotatably installed on the rack (100), the bearing plate (400) is connected with first driving element (410), and the first driving element (410) is used to drive the bearing plate (400) to rotate, the bearing plate (400) is provided with first mounting position and second mounting position for positioning the cylindrical battery (101), and the first mounting position and the second mounting position are symmetrically arranged with the bearing plate (400) rotation axis as center; Printing device (500) is connected to the rack (100), and the printing device (500) is configured to spray insulation paint on the cylindrical battery (101); Code printing device (600) is connected to the rack (100), and the code printing device (600) is configured to print the identification code scanned by the first code scanning device (200) on the cylindrical battery (101), and the code printing device (600) is provided with second code scanning device (601) on side, and the second code scanning device (601) is used to detect whether the identification code printed by the code printing device (600) is qualified, and information tracing is realized by using the first code scanning device (200) and the second code scanning device (601), to ensure the consistency of identity identification code of the cylindrical battery (101) before and after repair. Wherein, the bearing plate (400) can drive the first mounting position and the second mounting position to pass through the printing device (500) and the code printing device (600) in turn when rotating.

2. The cylindrical cell printing production line of claim 1, wherein: The rack (100) is provided with annular track (110);The rack (100) is provided with annular transport device (230), and the annular transport device (230) is connected with object table (201), and the object table (201) is used to carry cylindrical battery (101), and the annular transport device (230) is configured to drive the object table (201) to move along the annular track (110);The rack (100) is provided with transfer turnover device (700), and the transfer turnover device (700) is configured to overturn the cylindrical battery (101) on the object table (201) and the bearing plate (400), and the cylindrical battery (101) on the object table (201) can be moved to the bearing plate (400).

3. The cylindrical cell printing production line of claim 2, wherein: The rack (100) is provided with a rotary clamping device (800), the rotary clamping device (800) includes a first base (810) and two second bases (820), the first base (810) is connected to the rack (100) and can be adjusted in position up and down, the second base (820) is slidably connected to the upper end of the first base (810), the first base (810) is connected with a second driving member (811), the second driving member (811) is used for driving the two second bases (820) to move close to and away from each other, a clamping block (821) is rotatably installed on the second base (820), the second base (820) is provided with a third driving member (822) for driving the clamping block (821) to rotate, and the two clamping blocks (821) can clamp the two ends of the cylindrical battery cell (101) so as to drive the cylindrical battery cell (101) to rotate.

4. The cylindrical cell printing production line of claim 3, wherein: The first positioning tool (202) is arranged on the object table (201), the first positioning tool (202) is provided with a first positioning groove (203) and a second positioning groove (204), the cylindrical battery cell (101) can be horizontally placed in the first positioning groove (203), and the cylindrical battery cell (101) can be vertically placed in the second positioning groove (204); the first mounting position and the second mounting position are respectively formed by a second positioning tool (205) and a third positioning tool (206) connected to the upper end of the bearing plate (400); and the first positioning tool (202), the second positioning tool (205) and the third positioning tool (206) are the same in structure.

5. The cylindrical cell printing production line of claim 4, wherein: The second positioning tool (205) is vertically provided with a clearance hole (207), and the first base (810) is provided with a material lifting device (812) which can pass through the clearance hole (207) upward and push the cylindrical battery cell (101) to separate from the first positioning groove (203).

6. The cylindrical cell printing production line of claim 1, wherein: The printing device (500) is adjustably mounted on the rack (100), the rack (100) is provided with a first curing lamp (102) which can be adjusted in position, the printing device (500) can be moved above the cylindrical battery cell (101) to spray insulating paint on the cylindrical battery cell (101), and the first curing lamp (102) can be moved above the cylindrical battery cell (101) to irradiate the cylindrical battery cell (101).

7. The cylindrical cell printing production line of claim 2, wherein: The cylindrical battery cell printing production line further comprises a finished product conveying line (900) and a rework conveying line (910), the cylindrical battery cell (101) with a qualified identification code is moved to the finished product conveying line (900) by the transfer turnover device (700), and the cylindrical battery cell (101) with an unqualified identification code is moved to the rework conveying line (910) by the transfer turnover device (700).

8. The cylindrical cell printing production line of claim 1, wherein: The code spraying device (600) is adjustably mounted on the rack (100), a second curing lamp (103) is adjustably arranged on the rack (100), the code spraying device (600) can be moved above the cylindrical battery cell (101) to spray an identification code on the cylindrical battery cell (101), and the second curing lamp (103) can be moved above the cylindrical battery cell (101) to irradiate the cylindrical battery cell (101).

9. The cylindrical cell printing production line of claim 2, wherein: The annular conveying device (230) comprises a synchronous belt (210) and a plurality of synchronous wheels (220), the synchronous wheels (220) are rotatably mounted on the rack (100), the synchronous belt (210) is arranged around the synchronous wheels (220), the shape of the synchronous belt (210) is the same as that of the annular track (110), and a push rod (211) is horizontally arranged outside the synchronous belt (210) and connected with the object table (201) to drive the object table (201) to move.

10. The cylindrical cell printing production line of claim 2, wherein: The cleaning device (300) comprises a cleaning mechanism (310), a roughening mechanism (320) and a cleaning mechanism (330), the cleaning mechanism (310) and the roughening mechanism (320) are respectively used for cleaning and roughening the surface of the cylindrical battery cell (101) by using laser, the cleaning mechanism (310) and the roughening mechanism (320) each have a profiling tool (311) for clamping the cylindrical battery cell (101) and driving the cylindrical battery cell (101) to rotate, the moving path of the object table (201) passes through the cleaning mechanism (310) and the roughening mechanism (320), the cleaning mechanism (330) comprises a cleaning plasma generator (331) and two support rotating shafts (332), the two support rotating shafts (332) are arranged in parallel, the support rotating shafts (332) are rotatably mounted on the rack (100), the support rotating shafts (332) are used for supporting the cylindrical battery cell (101) and driving the cylindrical battery cell (101) to rotate, the cleaning plasma generator (331) is located above the support rotating shafts (332), and the cleaning plasma generator (331) is used for generating plasma to clean the cylindrical battery cell (101), and the transfer and overturning device (700) is configured to move the cylindrical battery cell (101) at the upper end of the object table (201) to the support rotating shafts (332) and move the cylindrical battery cell (101) on the support rotating shafts (332) to the bearing plate (400).

Images