A laser marking device for battery electrodes

Abstract

This utility model discloses a laser marking device for battery electrodes, belonging to the field of laser marking technology. The laser marking device includes a support platform, a laser marking component, and a dust removal component. Multiple rollers are spaced apart on the support platform. The laser marking component includes a laser, located on the support platform and above the rollers. The dust removal component includes a dust removal shell, a motor, and a brush roller. The dust removal shell is located on the support platform and is arranged opposite to the laser. The dust removal shell has an opening communicating with its inner cavity and a dust removal duct, with the opening facing the rollers. The motor is connected to the brush roller, and the dust removal shell covers the brush roller. This utility model provides a laser marking device for battery electrodes, which not only facilitates laser marking of battery electrodes, thus enabling better monitoring and management of raw materials and post-processing, but also ensures the cleanliness of the battery electrode surface after processing.

Description

Technical Field

[0001] This utility model belongs to the field of laser marking technology, specifically relating to a laser marking device for battery electrode sheets. Background Technology

[0002] Lithium-ion batteries have advantages such as high operating voltage, large capacity, long cycle life, no memory effect, light weight, and wide operating range. Currently, the market has increasingly higher requirements for the performance and capacity of lithium-ion batteries. Battery electrodes (anode or cathode materials) are an important component of lithium-ion batteries. After unwinding, battery electrodes need to undergo subsequent processing such as cold pressing, slitting, welding, and winding to form the cells used to assemble lithium-ion batteries.

[0003] Currently, existing manufacturers are unable to monitor and manage the raw materials and subsequent processing of motor pole pieces, such as identifying the workstations where problems occur, tracing the issues, counting quantities, and facilitating real-time data retrieval. Utility Model Content

[0004] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a laser marking device for battery electrode sheets. Its purpose is to not only conveniently complete the laser marking of battery electrode sheets, thereby achieving better monitoring and management of raw materials and post-processing, but also to ensure the cleanliness of the surface of the battery electrode sheets after processing.

[0005] To achieve the above objectives, this utility model provides a laser marking device for battery electrode sheets, the laser marking device including a support platform, a laser marking component and a dust removal component;

[0006] The support platform is provided with multiple spaced rollers, which are used to guide the battery electrodes.

[0007] The laser marking assembly includes a laser for marking the surface of the battery electrode, the laser being located on the support platform and above the plurality of rollers;

[0008] The dust removal assembly includes a dust removal housing, a motor, and a brush roller. The dust removal housing is located on the support platform and is arranged opposite to the laser. The dust removal housing has an opening and a dust removal duct that communicate with the inner cavity of the dust removal housing. The opening faces the roller. The motor is located on the dust removal housing, and the output shaft of the motor is connected to the brush roller. The dust removal housing covers the brush roller, and one side of the brush roller extends out of the opening. The brush roller is used to brush away welding slag from the surface of the battery electrode.

[0009] Optionally, the laser marking assembly further includes a protective cover, one end of which is mounted on the laser and the other end of which is located above the roller. The protective cover is used to enclose and protect the light outlet of the laser.

[0010] Optionally, the protective cover is equipped with a suction pipe to remove the fumes generated during the laser processing.

[0011] Optionally, the dust removal assembly further includes a linear module, the output end of which is connected to the laser drive to drive the laser to move along the axial direction of the drum.

[0012] Optionally, the laser marking device further includes a code reading module, which is located on the support platform, and the dust removal shell is located between the laser and the code reading module. The code reading module is used to scan the codes on the battery electrodes.

[0013] Optionally, there may be multiple code reading modules, which are arranged at intervals along the axial direction of the roller.

[0014] Optionally, a first bracket is provided on the support platform, and a slide rail extending along the axial direction of the roller is provided on the first bracket, and the code reading module is slidably arranged on the slide rail.

[0015] Optionally, there are two dust removal ducts, which are arranged at intervals.

[0016] Optionally, the laser marking equipment further includes a dust removal cabinet, the inner cavity of which is equipped with a fan, and the dust removal cabinet is provided with an air inlet and an air outlet, the air inlet being connected to the dust removal duct.

[0017] Optionally, a laser baffle is provided on the support platform, and the laser baffle is located directly below the laser.

[0018] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0019] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0020] The laser marking equipment for battery electrodes provided in this embodiment of the invention firstly unwinds the battery electrode on one side of the laser. During unwinding, the battery electrode is supported and guided by multiple spaced rollers (the battery electrode moves from the laser towards the dust removal housing, i.e., in the X direction). Then, each segment of the battery electrode passes under the laser in sequence, and the laser marks each area of ​​the battery electrode sequentially. These QR codes or digital codes facilitate convenient monitoring and management of the battery electrode raw materials and subsequent processing. Next, the motor drives the brush roller to rotate, automatically brushing away welding slag from the surface of the battery electrode during rotation. Simultaneously, a ventilation system extracts air from the dust removal duct to ensure that the welding slag on the surface of the battery electrode is removed, guaranteeing the cleanliness of the battery electrode surface during subsequent winding. Finally, the laser-marked battery electrode is wound up on one side of the dust removal housing.

[0021] In other words, the laser marking equipment for battery electrodes provided in this embodiment of the present invention can not only conveniently complete the laser marking of battery electrodes, thereby achieving better monitoring and management of raw materials and post-processing, but also ensure the cleanliness of the surface of the battery electrodes after processing. Attached Figure Description

[0022] Figure 1 This is a front view of a laser marking device for battery electrode sheets provided in an embodiment of the present invention;

[0023] Figure 2 This is a side view of a laser marking device for battery electrode sheets provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the laser marking component provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the dust removal component provided in this embodiment of the utility model;

[0026] Figure 5 yes Figure 4 Sectional view along line AA;

[0027] Figure 6 This is an assembly diagram of the laser provided in this embodiment of the utility model;

[0028] Figure 7 This is an assembly diagram of the code reading module provided in this embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the dust removal cabinet provided in this embodiment of the utility model.

[0030] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0031] 1. Support platform; 11. Roller; 12. First bracket; 121. Slide rail; 122. Slider; 13. Laser baffle; 14. Second bracket; 141. Support rod; 142. Cable chain bracket; 2. Laser marking assembly; 21. Laser; 22. Protective cover; 23. Suction pipe; 231. Dust duct fixing seat; 24. Linear module; 241. Third bracket; 3. Dust removal assembly; 31. Dust removal shell; 311. Opening; 312. Dust removal duct; 3121. Fourth bracket; 32. Motor; 33. Brush roller; 4. Code reading module; 5. Dust removal cabinet; 51. Air inlet; 52. Air outlet; 53. Dust removal operation screen; 54. Laser marking controller; 55. Marking control interface; 56. Staircase; 100. Battery electrode. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] Example:

[0038] Figure 1 This is a front view of a laser marking device for battery electrodes provided in an embodiment of this utility model. Figure 2 This is a side view of a laser marking device for battery electrodes provided in an embodiment of this utility model, combined with... Figure 1 and Figure 2 As shown, the laser marking equipment includes a support platform 1, a laser marking component 2, and a dust removal component 3.

[0039] The support platform 1 is provided with multiple rollers 11 arranged at intervals. The rollers 11 (along the Y direction) are used to guide the battery electrode 100.

[0040] Figure 3 This is a schematic diagram of the structure of the laser marking component provided in this embodiment of the utility model, as shown below. Figure 3 As shown, the laser marking assembly 2 includes a laser 21 for marking the surface of the battery electrode 100. The laser 21 is located on the support platform 1 and above a plurality of rollers 11.

[0041] Figure 4 This is a schematic diagram of the structure of the dust removal component provided in an embodiment of this utility model, as shown below. Figure 4As shown, the dust removal assembly 3 includes a dust removal housing 31, a motor 32, and a brush roller 33. The dust removal housing 31 is located on the support platform 1 and is arranged opposite to the laser 21. The dust removal housing 31 is provided with an opening 311 communicating with the inner cavity of the dust removal housing 31 and a dust removal air duct 312. The opening 311 is arranged facing the roller 11. The motor 32 is located on the dust removal housing 31, and the output shaft of the motor 32 is connected to the brush roller 33 for transmission. Figure 5 yes Figure 4 A sectional view along line AA, as shown Figure 5 As shown, the dust removal shell 31 covers the brush roller 33, and one side of the brush roller 33 extends out of the opening 311. The brush roller 33 is used to brush away the welding slag on the surface of the battery electrode 100.

[0042] For the laser marking device for battery electrodes provided in this embodiment of the present invention, firstly, the battery electrode 100 is unwound on one side of the laser 21. During the unwinding process, the battery electrode 100 is supported and guided by multiple spaced rollers 11 (wherein, the battery electrode 100 moves from the laser 21 towards the dust removal housing 31, i.e., in the X direction). Then, each segment of the battery electrode 100 passes under the laser 21 in sequence, and the laser 21 sequentially marks each area of ​​the battery electrode 100 with laser, thereby conveniently realizing the monitoring and management of the raw materials and subsequent processing of the battery electrode through these QR codes or digital codes. Next, the motor 32 drives the brush roller 33 to rotate, and the brush roller 33 automatically brushes away the welding slag on the surface of the battery electrode 100 during the rotation process. At the same time, the dust removal duct 312 is evacuated by the exhaust equipment (e.g., the fan described later) to ensure that the welding slag on the surface of the battery electrode 100 is sucked away and removed, ensuring the cleanliness of the surface of the battery electrode 100 when it is subsequently rewound. Finally, the laser-marked battery electrode 100 is wound up on one side of the dust removal shell 31.

[0043] In other words, the laser marking equipment for battery electrode sheets provided in this utility model embodiment can not only conveniently complete the laser marking of battery electrode sheets 100, thereby achieving better monitoring and management of raw materials and post-processing, but also ensure the cleanliness of the surface of the battery electrode sheets 100 after processing.

[0044] For example, the support platform 1 is provided with two spaced-apart second supports 14, which are supported by support rods 141. The two ends of each roller 11 are respectively inserted into the corresponding second support 14 through bearing seats.

[0045] It should be noted that the laser 21 marking has a certain spatial range (e.g., 500*500mm), which can compensate for the travel generated during the movement of the battery electrode 100 and ensure that the marking is done along a straight line on the battery electrode 100.

[0046] For example, the side length of the marking size ranges from 2 to 50 mm.

[0047] In this embodiment, a laser baffle 13 is provided on the support platform 1, and the laser baffle 13 is located directly below the laser 21. The laser baffle 13 can prevent the laser from shining directly onto the bottom surface, so as to prevent damage to the equipment or people.

[0048] For example, the laser baffle 13 is mounted on two second brackets 14 by means of supports.

[0049] Figure 6 This is an assembly diagram of the laser provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the laser marking assembly 2 also includes a protective cover 22. One end of the protective cover 22 is mounted on the laser 21, and the other end of the protective cover 22 is located above the roller 11. The protective cover 22 is used to protect the light outlet of the laser 21.

[0050] In the above embodiment, the protective cover 22 can protect the laser 21 during the coding process, which can not only prevent welding slag from splashing, but also play a certain role in protecting against the spread of fumes.

[0051] Furthermore, a suction pipe 23 is inserted into the protective cover 22 to remove the fumes generated during the laser 21 processing. The suction pipe 23 can promptly remove the fumes generated during the processing through a ventilation system.

[0052] In one embodiment of this utility model, the dust removal assembly 3 further includes a linear module 24, the output end of which is connected to the laser 21 to drive the laser 21 to move along the axial direction (Y direction) of the roller 11.

[0053] It is easy to understand that the linear module 24 can drive the laser 21 to move along the Y direction, thereby increasing the marking range of the laser 21 and adapting to the battery electrode 100 which is wider in the Y direction.

[0054] For example, the output end of the linear module 24 is connected to the laser 21 via the third bracket 241, and the suction pipe 23 is fixed to the third bracket 241 via the duct fixing seat 231. In addition, a cable chain bracket 142 is also provided on the second bracket 14. The cable chain bracket 142 is used to support the cable chain and the wiring channel, thereby facilitating the wiring of the laser 21.

[0055] It should be noted that in other embodiments of this utility model, multiple lasers 21 can also be used to mark wider battery electrodes 100 in the Y direction.

[0056] Figure 7 This is an assembly diagram of the code reading module provided in this embodiment of the utility model, combined with... Figure 1and Figure 7 As shown, the laser marking equipment also includes a code reading module 4, which is located on the support platform 1. The dust removal housing 31 is located between the laser 21 and the code reading module 4. The code reading module 4 is used to scan the codes on the battery electrode 100. The code reading module 4 can read the codes marked by the laser 21 to ensure the marking quality of the laser 21.

[0057] Furthermore, there are multiple code reading modules 4, which are arranged at intervals along the axial direction (Y direction) of the roller 11. In this arrangement, each code reading module 4 can read the code in its corresponding area.

[0058] In addition, a first bracket 12 is provided on the support platform 1, and a slide rail 121 extending along the axial direction of the roller 11 is provided on the first bracket 12. The code reading module 4 is slidably arranged on the slide rail 121, and the position of the code reading module 4 can be conveniently adjusted through the slide rail 121.

[0059] For example, multiple sliders 122 are movably inserted on the slide rail 121, and each code reading module 4 is installed on the corresponding slider 122.

[0060] For example, the code reading module 4 can be a code reader or a camera.

[0061] See also Figure 4 and Figure 5 There are two dust removal ducts 312, which are arranged at intervals. The two dust removal ducts 312 can ensure that there is negative pressure on both sides inside the dust removal housing 31, and that it is more uniform.

[0062] For example, the dust collector housing 31 is formed by multiple side plates, with an opening 311 at the bottom. The two ends of the brush roller 33 are mounted on the left and right side plates by corresponding supports. The motor 32 is located on the outside of the side plates and is connected to one end of the brush roller 33 by a coupling. In addition, two dust collector ducts 312 are inserted into the upper side plate, and each dust collector duct 312 is supported on the side plate by a corresponding fourth bracket 3121.

[0063] Figure 8 This is a structural schematic diagram of the dust removal cabinet provided in an embodiment of this utility model, as shown below. Figure 8 As shown, the laser marking equipment also includes a dust removal cabinet 5. The inner cavity of the dust removal cabinet 5 is equipped with a fan. The dust removal cabinet 5 is equipped with an air inlet 51 and an air outlet 52. The air inlet 51 is connected to the dust removal duct 312.

[0064] In the above embodiment, the fan can draw air into the dust removal duct 312 and finally discharge the gas through the outlet 52.

[0065] For example, there are 3 air inlets 51, which are respectively connected to the dust removal duct 312 and the suction duct 23.

[0066] In addition, a filter screen is installed inside the dust collection cabinet 5 to filter the intake air. A dust collection operation panel 53 is also installed outside the dust collection cabinet 5 to control the internal fan. A laser marking controller 54 and a marking control interface 55 are also installed on the top of the dust collection cabinet 5. The marking control interface 55 is used to input control signals to the laser marking controller 54, which in turn controls the corresponding laser 21, thereby achieving automated control of the marking process. A movable staircase 56 is provided on the side of the dust collection cabinet 5 for easy maintenance of the dust collection cabinet 5 and the laser marking controller 54.

[0067] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser coding apparatus for battery pole pieces, characterized by, The laser marking equipment includes a support platform, a laser marking component, and a dust removal component; The support platform is provided with multiple spaced rollers, which are used to guide the battery electrodes. The laser marking assembly includes a laser for marking the surface of the battery electrode, the laser being located on the support platform and above the plurality of rollers; The dust removal assembly includes a dust removal housing, a motor, and a brush roller. The dust removal housing is located on the support platform and is arranged opposite to the laser. The dust removal housing has an opening and a dust removal duct that communicate with the inner cavity of the dust removal housing. The opening faces the roller. The motor is located on the dust removal housing, and the output shaft of the motor is connected to the brush roller. The dust removal housing covers the brush roller, and one side of the brush roller extends out of the opening. The brush roller is used to brush away welding slag from the surface of the battery electrode.

2. The laser coding apparatus for battery electrode sheet according to claim 1, wherein The laser marking assembly also includes a protective cover, one end of which is mounted on the laser and the other end of which is located above the roller. The protective cover is used to enclose and protect the light outlet of the laser.

3. The laser coding apparatus for battery pole pieces according to claim 2, wherein, The protective cover is equipped with a suction pipe to remove the smoke and dust generated during the laser processing.

4. The laser coding apparatus for battery pole pieces according to claim 1, wherein, The dust removal assembly also includes a linear module, the output end of which is connected to the laser to drive the laser to move along the axial direction of the drum.

5. The laser coding apparatus for battery pole pieces according to claim 4, wherein, The laser marking equipment also includes a code reading module, which is located on the support platform, and the dust removal shell is located between the laser and the code reading module. The code reading module is used to scan the codes on the battery electrodes.

6. The laser coding apparatus for battery pole pieces according to claim 5, wherein, The number of the code reading modules is multiple, and the multiple code reading modules are arranged at intervals along the axial direction of the roller.

7. The laser coding apparatus for battery pole pieces according to claim 5, wherein, A first bracket is provided on the support platform, and a slide rail extending along the axial direction of the roller is provided on the first bracket. The code reading module is slidably arranged on the slide rail.

8. The laser coding apparatus for battery pole pieces of claim 1, wherein, There are two dust removal ducts, which are arranged at intervals.

9. The laser coding apparatus for battery pole pieces of claim 1, wherein, The laser marking equipment also includes a dust removal cabinet, the inner cavity of which is equipped with a fan, and the dust removal cabinet is provided with an air inlet and an air outlet, the air inlet being connected to the dust removal duct.

10. The laser coding apparatus for battery pole piece according to any one of claims 1-9, wherein, A laser baffle is provided on the support platform, and the laser baffle is located directly below the laser.

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