Laser cutting device and battery recycling system

Abstract

The present invention discloses a laser cutting device and a battery recycling system, which relate to the field of lithium battery recycling technology. The laser cutting device includes a workbench, a first driving mechanism, a sliding frame, a lifting mechanism, a lifting frame, a second driving mechanism, a mounting frame and a laser emitter. The first driving mechanism is installed on the workbench and connected to the sliding frame, the lifting mechanism is installed on the sliding frame and connected to the lifting frame, the second driving mechanism is installed on the lifting frame and connected to the mounting frame, the laser emitter is installed on the mounting frame, and the laser emitter is used to cut the tape on the surface of the battery cell. The laser cutting device provided by the present invention can quickly cut the tape on the surface of the battery cell, so as to facilitate the disassembly and recycling of the battery cell, with high cutting efficiency and good cutting effect, and will not cause damage to the internal structure of the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery recycling, and in particular to a laser cutting device and a battery recycling system. Background Art

[0002] At present, with the continuous increase in sales of new energy vehicles, the amount of retired batteries is about to enter a period of rapid growth. The current method of recycling batteries is generally to directly crush and disassemble the lithium batteries. First, the positive electrode, negative electrode, separator and electrolyte are all crushed and mixed together, and then separated and processed in sequence. This method has a low degree of automation, serious pollution and high disassembly cost. Therefore, it is necessary to develop an automated disassembly technology that can non-destructively separate the positive and negative electrodes of batteries. In this disassembly technology, the rewinding and disassembling of the battery cell is one of the key technical points. To achieve the rewinding and disassembling of the battery cell, it is necessary to first remove or disconnect the end tape at the end of the battery cell winding.

[0003] In view of this, it is particularly important to design and manufacture a laser cutting device and a battery recycling system that can cut the tape, especially in lithium battery recycling. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser cutting device that can quickly cut the tape on the surface of the battery cell to facilitate the disassembly and recycling of the battery cell, with high cutting efficiency and good cutting effect, and will not cause damage to the internal structure of the battery cell.

[0005] Another object of the present invention is to provide a battery recycling system, in which the laser cutting device can quickly cut the tape on the surface of the battery cell to facilitate the disassembly and recycling of the battery cell, with high cutting efficiency and good cutting effect, and will not cause damage to the internal structure of the battery cell.

[0006] The present invention is achieved by adopting the following technical solutions.

[0007] A laser cutting device includes a workbench, a first drive mechanism, a sliding frame, a lifting mechanism, a lifting frame, a second drive mechanism, a mounting frame and a laser emitter. The first drive mechanism is installed on the workbench and connected to the sliding frame. The first drive mechanism is used to drive the sliding frame to move in a first direction. The lifting mechanism is installed on the sliding frame and connected to the lifting frame. The lifting mechanism is used to drive the lifting frame to rise and fall in a second direction. The second drive mechanism is installed on the lifting frame and connected to the mounting frame. The laser emitter is installed on the mounting frame. The second drive mechanism is used to drive the laser emitter to move in a third direction through the mounting frame. The laser emitter is used to cut the tape on the surface of the battery cell. The first direction, the second direction and the third direction are perpendicular to each other.

[0008] Optionally, the laser cutting device further includes a conveying mechanism, which is installed on a workbench and is used to drive the battery cell to move.

[0009] Optionally, the laser cutting device also includes a controller, which is electrically connected to the first drive mechanism, the lifting mechanism, the second drive mechanism and the conveying mechanism at the same time; the controller is used to control the first drive mechanism, the lifting mechanism and the second drive mechanism to drive the laser emitter to cut the tape while the conveying mechanism drives the battery cell to move; or, the controller is used to control the conveying mechanism to pause when the battery cell moves to a preset position, and control the first drive mechanism, the lifting mechanism and the second drive mechanism to drive the laser emitter to cut the tape.

[0010] Optionally, the laser cutting device also includes an image sensor, which is mounted on a mounting bracket and electrically connected to a controller. The image sensor is used to send the captured image information of the battery cell to the controller, and the controller is used to control the first drive mechanism, the lifting mechanism, and the second drive mechanism to drive the laser emitter to adjust its position according to the image information.

[0011] Optionally, the laser cutting device also includes a telescopic mechanism and a limit block. The telescopic mechanism is installed on the workbench and connected to the limit block. The telescopic mechanism is used to drive the limit block to extend above the conveying mechanism to stop the battery cell at a preset position.

[0012] Optionally, there are two telescopic mechanisms and two limit blocks, the two telescopic mechanisms are arranged on two sides of the workbench opposite to each other, and each telescopic mechanism is connected to a limit block.

[0013] Optionally, the laser cutting device also includes a position sensor, which is installed on the workbench and is electrically connected to the telescopic mechanism and the conveying mechanism at the same time. The position sensor is used to control the telescopic mechanism to drive the limit block to extend and control the conveying mechanism to pause when it detects that the battery cell moves to a preset position.

[0014] Optionally, the conveying mechanism includes a driving motor, a driving wheel, a driven wheel and a transmission belt. The driving motor is installed at one end of the workbench and is connected to the driving wheel. The driving wheel is connected to the driven wheel through a transmission belt. The driven wheel is rotatably installed at the other end of the workbench. The transmission belt is used to drive the battery cell to move.

[0015] Optionally, the first driving mechanism, the lifting mechanism and the second driving mechanism are all hydraulic cylinders, pneumatic cylinders or electric push rods.

[0016] A battery recycling system includes the above-mentioned laser cutting device, which includes a workbench, a first drive mechanism, a sliding frame, a lifting mechanism, a lifting frame, a second drive mechanism, a mounting frame and a laser emitter. The first drive mechanism is installed on the workbench and connected to the sliding frame. The first drive mechanism is used to drive the sliding frame to move in a first direction. The lifting mechanism is installed on the sliding frame and connected to the lifting frame. The lifting mechanism is used to drive the lifting frame to rise and fall in a second direction. The second drive mechanism is installed on the lifting frame and connected to the mounting frame. The laser emitter is installed on the mounting frame. The second drive mechanism is used to drive the laser emitter to move in a third direction through the mounting frame. The laser emitter is used to cut the tape on the surface of the battery cell. The first direction, the second direction and the third direction are perpendicular to each other.

[0017] The laser cutting device and battery recycling system provided by the present invention have the following beneficial effects:

[0018] The laser cutting device provided by the present invention comprises a first drive mechanism mounted on a workbench and connected to a sliding frame, the first drive mechanism being used to drive the sliding frame to move in a first direction, a lifting mechanism being mounted on the sliding frame and connected to the lifting frame, the lifting mechanism being used to drive the lifting frame to move up and down in a second direction, a second drive mechanism being mounted on the lifting frame and connected to a mounting frame, a laser emitter being mounted on the mounting frame, the second drive mechanism being used to drive the laser emitter to move in a third direction via the mounting frame, the laser emitter being used to cut the tape on the surface of the battery cell, the first direction, the second direction and the third direction being perpendicular to each other. Compared with the prior art, the laser cutting device provided by the present invention can quickly cut the tape on the surface of the battery cell, facilitating the disassembly and recycling of the battery cell, because it employs a laser emitter mounted on the mounting frame and a first drive mechanism, a lifting mechanism and a second drive mechanism being used to drive the laser emitter to move in different directions, thereby facilitating the disassembly and recycling of the battery cell, with high cutting efficiency and good cutting effect, and without causing damage to the internal structure of the battery cell.

[0019] The battery recycling system provided by the present invention has a laser cutting device therein that can quickly cut the tape on the surface of the battery cell to facilitate the disassembly and recycling of the battery cell. It has high cutting efficiency and good cutting effect, and will not cause damage to the internal structure of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 An isometric view of a laser cutting device according to a first embodiment of the present invention;

[0022] Figure 2 A front view of a laser cutting device provided in a first embodiment of the present invention;

[0023] Figure 3 A right side view of the laser cutting device provided by the first embodiment of the present invention;

[0024] Figure 4 A schematic structural diagram of a conveying mechanism in a laser cutting device provided in a first embodiment of the present invention;

[0025] Figure 5 An isometric view of a laser cutting device according to a second embodiment of the present invention;

[0026] Figure 6 An isometric view of a laser cutting device according to a third embodiment of the present invention.

[0027] Icons: 100-laser cutting device; 110-workbench; 120-first drive mechanism; 130-sliding frame; 140-lifting mechanism; 150-lifting frame; 160-second drive mechanism; 170-mounting frame; 180-laser emitter; 190-conveyor mechanism; 191-drive motor; 192-driving wheel; 193-driven wheel; 194-transmission belt; 200-controller; 210-image sensor; 220-telescopic mechanism; 230-limiting block; 240-position sensor; 300-battery cell; 310-tape. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0034] First embodiment

[0035] Please refer to Figures 1 to 4 An embodiment of the present invention provides a battery recycling system (not shown) for disassembling and recycling lithium batteries. The laser cutting device 100 therein can quickly cut the tape 310 on the surface of the battery cell 300, facilitating disassembly and recycling of the battery cell 300. This system achieves high efficiency and excellent cutting results without damaging the internal structure of the battery cell 300.

[0036] It should be noted that the battery recycling system includes a laser cutting device 100 and a rewinding and disassembling device (not shown). The laser cutting device 100 is connected to the rewinding and disassembling device; the laser cutting device 100 is used to laser cut the tape 310 on the surface of the battery cell 300 to sever the end tape 310 at the end of the battery cell 300, facilitating the subsequent rewinding and disassembly of the battery cell 300; the rewinding and disassembling device is used to rewind the battery cell 300 to restore the wound battery cell 300 to a strip shape, facilitating the lossless separation of the positive and negative electrodes of the battery cell 300, reducing environmental pollution, and improving disassembly and recycling efficiency.

[0037] Specifically, the battery cell 300 includes a wound tape (composed of a positive electrode sheet, a negative electrode sheet, and a separator) and a tape 310 attached to the tail of the tape. The tape 310 is attached to the middle of the tape and is narrower than the width of the tape itself. The tape 310 is used to prevent the wound tape from unraveling. Therefore, when the laser cutting device 100 is used to cut the tape 310, the tape 310 is cut at the tail of the tape. After the tape 310 is cut, the rewinding device can be used to rewind the tape from the tail, thereby enabling the battery cell 300 to be disassembled and recycled.

[0038] The laser cutting device 100 includes a workbench 110, a first drive mechanism 120, a carriage 130, a lifting mechanism 140, a lifting frame 150, a second drive mechanism 160, a mounting frame 170, a laser emitter 180, a conveying mechanism 190, a controller 200, an image sensor 210, a telescopic mechanism 220, a stop block 230, and a position sensor 240. The first drive mechanism 120 is mounted on the workbench 110 and connected to the carriage 130. The first drive mechanism 120 is used to drive the carriage 130 to move in a first direction. The lifting mechanism 140 is mounted on the carriage 130 and connected to the lifting frame 150. The lifting mechanism 140 is used to drive the lifting frame 150 to move in a second direction. The second drive mechanism 160 is mounted on the lifting frame 150 and connected to the mounting frame 170. The laser emitter 180 is mounted on the mounting frame 170. The second drive mechanism 160 is used to drive the laser emitter 180 in a third direction via the mounting frame 170. The laser emitter 180 is used to emit laser to perform laser cutting on the tape 310 on the surface of the battery cell 300, so as to quickly cut off the tape 310 on the surface of the battery cell 300, facilitating the subsequent disassembly and recycling of the battery cell 300, with high cutting efficiency and good cutting effect, and will not cause damage to the internal structure of the battery cell 300.

[0039] In this embodiment, the first driving mechanism 120 can drive the laser emitter 180 to move in the first direction through the sliding frame 130, the lifting mechanism 140, the lifting frame 150, the second driving mechanism 160 and the mounting frame 170, so as to realize the displacement function of the laser emitter 180 in the first direction; the lifting mechanism 140 can drive the laser emitter 180 to rise and fall in the second direction through the lifting frame 150, the second driving mechanism 160 and the mounting frame 170, so as to realize the displacement function of the laser emitter 180 in the second direction; the second driving mechanism 160 can drive the laser emitter 180 to move in the third direction through the mounting frame 170, so as to realize the displacement function of the laser emitter 180 in the third direction; the first direction, the second direction and the third direction are perpendicular to each other, so that the laser emitter 180 can be moved to various positions in the three-dimensional coordinate system, thereby ensuring the accuracy of the laser emitter 180 in cutting the tape 310.

[0040] It should be noted that the conveyor mechanism 190 is mounted on the workbench 110 and is used to drive the battery cells 300 to facilitate the feeding of the battery cells 300, thereby facilitating the laser emitter 180 to laser-cut the tape 310 on the surface of the battery cells 300, thereby improving cutting efficiency and achieving a high degree of automation. In this embodiment, the conveyor mechanism 190 is used to transport the battery cells 300 to a predetermined position to facilitate the laser emitter 180 to laser-cut the tape 310.

[0041] It is worth noting that the controller 200 is electrically connected to the first drive mechanism 120, the lifting mechanism 140, the second drive mechanism 160 and the conveying mechanism 190 at the same time. The controller 200 is used to control the conveying mechanism 190 to pause when the battery cell 300 moves to a preset position, and control the first drive mechanism 120, the lifting mechanism 140 and the second drive mechanism 160 to drive the laser emitter 180 to cut the tape 310.

[0042] Furthermore, the image sensor 210 is installed on the mounting bracket 170 and is electrically connected to the controller 200. The image sensor 210 is used to send the image information of the battery cell 300 obtained by photographing to the controller 200. The controller 200 is used to control the first drive mechanism 120, the lifting mechanism 140 and the second drive mechanism 160 according to the image information to drive the laser emitter 180 to adjust its position to ensure that the position of the laser emitter 180 is aligned with the starting point of the disconnection position of the tape 310, and the distance between the laser emitter 180 and the tape 310 is a preset distance, ensuring that the laser emitted by the laser emitter 180 can just cut the tape 310 without causing damage to the tape, thereby avoiding the risk of fire caused by burns to the tape.

[0043] Specifically, after the controller 200 controls the first drive mechanism 120, the lifting mechanism 140, and the second drive mechanism 160 to adjust the position of the laser emitter 180, the laser emitter 180 is first activated. At this point, the laser emitter 180 emits a laser beam to the starting point of the break position of the adhesive tape 310. The second drive mechanism 160 then drives the laser emitter 180 in a third direction, causing the laser beam to cut the adhesive tape 310 along the third direction until the adhesive tape 310 is completely severed. At this point, the laser emitter 180 emits a laser beam to the ending point of the break position of the adhesive tape 310. Furthermore, the speed at which the laser emitter 180 is driven by the second drive mechanism 160 can be finely adjusted to ensure that the laser emitter 180 can effectively cut the adhesive tape 310 of different battery cell models 300 and to prevent the laser beam from damaging the adhesive tape 310 after passing through it.

[0044] In this embodiment, the conveying direction of the conveying mechanism 190 is the first direction, the direction in which the laser emitter 180 emits laser light is the second direction, and the cutting direction of the laser emitter 180 (the direction in which the tape 310 is severed) is the third direction. The cutting direction of the laser emitter 180 is perpendicular to both the first direction and the second direction. During the process of cutting the tape 310 by the laser cutting device 100, the conveying mechanism 190 conveys the battery cell 300 to a predetermined position along the first direction. The laser emitter 180, under the action of the second driving mechanism 160, moves along the third direction and continuously cuts the tape 310 on the battery cell 300, thereby severing the tape 310 along the third direction.

[0045] Furthermore, the melting point of the tape 310 ranges from 100 degrees Celsius to 120 degrees Celsius, so the laser emitter 180 uses a carbon dioxide laser with an operating power of 20 watts to ensure that the laser emitted by the laser emitter 180 can quickly and effectively cut the tape 310 while preventing the tape from catching fire due to excessive temperature.

[0046] It should be noted that the telescopic mechanism 220 is mounted on the workbench 110 and is connected to the limit block 230. The telescopic mechanism 220 is used to drive the limit block 230 to extend above the conveying mechanism 190 to stop the battery cell 300 at a preset position, thereby achieving the positioning function of the battery cell 300. Specifically, the telescopic mechanism 220 can drive the limit block 230 to extend and retract along the third direction. When the limit block 230 extends above the conveying mechanism 190 along the third direction, the limit block 230 can stop the battery cell 300 to ensure that the battery cell 300 stays at the preset position and does not deflect. When the limit block 230 retracts along the third direction, the limit block 230 no longer stops the battery cell 300, and the battery cell 300 can be moved to the next workstation under the drive of the conveying mechanism 190.

[0047] In this embodiment, there are two telescopic mechanisms 220 and two limit blocks 230. The two telescopic mechanisms 220 are relatively arranged on both sides of the workbench 110. Each telescopic mechanism 220 is connected to a limit block 230. The two telescopic mechanisms 220 are started at the same time to drive the two limit blocks 230 to move closer to or away from each other. The two limit blocks 230 work together to improve the stopping effect on the battery cell 300, and further prevent the battery cell 300 from continuing to move forward or deflecting.

[0048] Furthermore, a position sensor 240 is mounted on the workbench 110 and is electrically connected to both the telescopic mechanism 220 and the conveying mechanism 190. Upon detecting that the battery cell 300 has reached a predetermined position, the position sensor 240 controls the telescopic mechanism 220 to extend the stop block 230 and to pause the conveying mechanism 190, thereby ensuring that the battery cell 300 remains in the predetermined position. In this embodiment, the position sensor 240 is an infrared sensor, but is not limited thereto. In other embodiments, the position sensor 240 may also be an ultraviolet sensor. The type of position sensor 240 is not specifically limited.

[0049] Specifically, in the conveying direction of the conveying mechanism 190, the position sensor 240 is located in front of the telescopic mechanism 220. In the process of the conveying mechanism 190 conveying the battery cell 300, when the battery cell 300 begins to pass through the position sensor 240, the position sensor 240 controls the telescopic mechanism 220 to drive the limit block 230 to extend; when the battery cell 300 completely passes through the position sensor 240, the position sensor 240 controls the conveying mechanism 190 to pause. At this time, the conveying mechanism 190 no longer drives the battery cell 300 forward, and the limit block 230 stops the battery cell 300 to ensure that the battery cell 300 stops at the preset position.

[0050] In this embodiment, the lifting mechanism 140, the first drive mechanism 120, the second drive mechanism 160 and the telescopic mechanism 220 are all pneumatic cylinders, but are not limited to this. In other embodiments, the lifting mechanism 140, the first drive mechanism 120, the second drive mechanism 160 and the telescopic mechanism 220 can all be hydraulic cylinders or electric push rods. There is no specific limitation on the driving mode of the lifting mechanism 140, the first drive mechanism 120, the second drive mechanism 160 and the telescopic mechanism 220.

[0051] The conveying mechanism 190 includes a driving motor 191, a driving wheel 192, a driven wheel 193 and a transmission belt 194. The driving motor 191 is installed at one end of the workbench 110 and is connected to the driving wheel 192. The driving motor 191 is used to drive the driving wheel 192 to rotate. The driving wheel 192 is connected to the driven wheel 193 through a transmission belt 194. The driven wheel 193 is rotatably installed at the other end of the workbench 110. The transmission belt 194 extends along a first direction. The transmission belt 194 is used to drive the battery cell 300 to move. The driving wheel 192 can drive the driven wheel 193 to rotate through the transmission belt 194. During this process, the transmission belt 194 drives the battery cell 300 placed thereon to move along the first direction until the battery cell 300 moves to a preset position.

[0052] It is worth noting that during the cutting process of the laser cutting device 100, the conveying mechanism 190 is first used to feed the battery cell 300 forward; when the battery cell 300 moves to the preset position, the position sensor 240 controls the conveying mechanism 190 to pause, and controls the telescopic mechanism 220 to drive the limit block 230 to extend to stop the battery cell 300, so that the battery cell 300 stops at the preset position; then the controller 200 is used to control the lifting mechanism 140, the first drive mechanism 120 and the second drive mechanism 160 to adjust the position of the laser emitter 180 according to the image information of the battery cell 300 emitted by the image sensor 210, so that the laser emitter 180 is located just above the starting point of the disconnection position of the tape 310 of the battery cell 300 The laser emitter 180 is positioned in the third direction, and the distance between the laser emitter 180 and the tape 310 is a preset distance; the second driving mechanism 160 is then used to drive the laser emitter 180 to move along the third direction to just above the end point of the disconnection position of the tape 310, so as to completely cut the tape 310, and the tape 310 cutting operation is completed; the lifting mechanism 140, the first driving mechanism 120 and the second driving mechanism 160 are then used to drive the laser emitter 180 to reset, the conveying mechanism 190 continues to start, and the telescopic mechanism 220 drives the limit block 230 to retract, so as to send the battery cell 300 to the next station, and send the next battery cell 300 to the preset position, and repeat this process to achieve the fusing of the tapes 310 of multiple battery cells 300, and the cutting efficiency is high.

[0053] The laser cutting device 100 provided by an embodiment of the present invention has a first driving mechanism 120 installed on a workbench 110 and connected to a sliding frame 130. The first driving mechanism 120 is used to drive the sliding frame 130 to move along a first direction. The lifting mechanism 140 is installed on the sliding frame 130 and connected to the lifting frame 150. The lifting mechanism 140 is used to drive the lifting frame 150 to move up and down in a second direction. The second driving mechanism 160 is installed on the lifting frame 150 and connected to the mounting frame 170. The laser emitter 180 is installed on the mounting frame 170. The second driving mechanism 160 is used to drive the laser emitter 180 to move along a third direction through the mounting frame 170. The laser emitter 180 is used to cut the tape 310 on the surface of the battery cell 300. The first direction, the second direction and the third direction are perpendicular to each other. Compared to the prior art, the laser cutting device 100 provided by the present invention utilizes a laser emitter 180 mounted on a mounting frame 170, as well as a first drive mechanism 120, a lifting mechanism 140, and a second drive mechanism 160 for driving the laser emitter 180 in different directions. Therefore, it can quickly cut the tape 310 on the surface of the battery cell 300, facilitating disassembly and recycling of the battery cell 300. The cutting efficiency is high, the cutting effect is good, and the internal structure of the battery cell 300 is not damaged. This results in a high recycling efficiency and good operating efficiency for the battery recycling system.

[0054] Second embodiment

[0055] Please refer to Figure 5 An embodiment of the present invention provides a laser cutting device 100. Compared with the first embodiment, the difference of this embodiment is that the cutting method of the laser emitter 180 is different.

[0056] In this embodiment, the telescopic mechanism 220, the limit block 230, and the position sensor 240 are no longer provided. The conveying mechanism 190 always moves along the first direction at a preset speed to drive the battery cells 300 forward at a uniform speed. The length direction of the tape 310 applied to the battery cells 300 is the third direction. Specifically, the controller 200 is used to control the first drive mechanism 120, the lifting mechanism 140, and the second drive mechanism 160 to drive the laser emitter 180 to cut the tape 310 while the conveying mechanism 190 drives the battery cells 300 to move, thereby cutting the tape 310 along the third direction. The controller 200 is also used to quickly reset after cutting the tape 310 of one battery cell 300 to facilitate laser cutting of the tape 310 of the next battery cell 300. In this way, the entire laser cutting process no longer has any dead time for the battery cells 300, further improving the cutting efficiency.

[0057] It is worth noting that during the cutting process of the laser cutting device 100, the conveying mechanism 190 drives a plurality of spaced-apart battery cells 300 forward in sequence. When a battery cell 300 enters the imaging range of the image sensor 210, the image sensor 210 transmits the captured image information of the battery cell 300 to the controller 200. The controller 200 then controls the first drive mechanism 120, the lifting mechanism 140, and the second drive mechanism 160 to drive the laser emitter 180 to laser cut the tape 310. During this process, the first drive mechanism 120 drives the laser emitter 180 in a first direction at a preset speed to keep the laser emitter 180 and the battery cells 300 relatively stationary. The lifting mechanism 140 drives the laser emitter 180 up and down to ensure that the distance between the laser emitter 180 and the tape 310 is a preset distance. The second drive mechanism 160 drives the laser emitter 180 in a third direction to completely sever the tape 310, completing the follow-up cutting.

[0058] The beneficial effects of the laser cutting device 100 provided in this embodiment of the present invention are the same as those of the first embodiment, and are not described in detail here.

[0059] Third embodiment

[0060] Please refer to Figure 6 An embodiment of the present invention provides a laser cutting device 100. Compared with the first embodiment, the difference of this embodiment is that the feeding direction of the battery cell 300 is different.

[0061] In this embodiment, the conveyor mechanism 190 continuously moves along a first direction at a preset speed to propel the battery cells 300 forward at a constant speed. The length of the adhesive tape 310 applied to the battery cells 300 is the first direction. This ensures that the conveying direction of the conveyor mechanism 190 is the same as the cutting direction of the adhesive tape 310 by the laser emitter 180. After the controller 200 controls the first drive mechanism 120, the lifting mechanism 140, and the second drive mechanism 160 to move the laser emitter 180 to a designated position, the laser emitter 180 remains stationary. When the conveyor mechanism 190 delivers the battery cells 300 to the area beneath the laser emitter 180, the laser emitter 180 emits a laser to laser-cut the adhesive tape 310 on the battery cells 300. This repetitive process eliminates any cell 300 stagnation during the laser cutting process, further improving cutting efficiency.

[0062] The beneficial effects of the laser cutting device 100 provided in this embodiment of the present invention are the same as those of the second embodiment, and are not described in detail here.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A laser cutting device, characterized in that: The invention comprises a workbench (110), a first driving mechanism (120), a sliding frame (130), a lifting mechanism (140), a lifting frame (150), a second driving mechanism (160), a mounting frame (170) and a laser emitter (180), wherein the first driving mechanism (120) is mounted on the workbench (110) and connected to the sliding frame (130), the first driving mechanism (120) is used to drive the sliding frame (130) to move in a first direction, the lifting mechanism (140) is mounted on the sliding frame (130) and connected to the lifting frame (150), the lifting mechanism (140) is used to drive the lifting frame (150) to move up and down in a second direction, and the second driving mechanism ( 160) is mounted on the lifting frame (150) and connected to the mounting frame (170), the laser emitter (180) is mounted on the mounting frame (170), the second driving mechanism (160) is used to drive the laser emitter (180) to move along a third direction through the mounting frame (170), the laser emitter (180) is used to cut the tape (310) on the surface of the battery cell (300), and the first direction, the second direction and the third direction are perpendicular to each other; the laser cutting device also includes a conveying mechanism (190), the conveying mechanism (190) is mounted on the workbench (110), and the conveying mechanism (190) is used to drive the battery cell (300) to move; The laser cutting device further comprises a controller (200), the controller (200) being electrically connected to the first drive mechanism (120), the lifting mechanism (140), the second drive mechanism (160), and the conveying mechanism (190) at the same time; the controller (200) is used to control the conveying mechanism (190) to pause when the battery cell (300) moves to a preset position, and to control the first drive mechanism (120), the lifting mechanism (140), and the second drive mechanism (160) to drive the laser emitter (180) to cut the tape (310); The laser cutting device further comprises an image sensor (210), the image sensor (210) being mounted on the mounting frame (170) and electrically connected to the controller (200), the image sensor (210) being used to send the image information of the battery cell (300) obtained by shooting to the controller (200), the controller (200) being used to control the first driving mechanism (120), the lifting mechanism (140) and the second driving mechanism (160) according to the image information to drive the laser emitter (180) to adjust its position so that the laser emitter (180) is located directly above the starting point of the disconnection position of the tape (310) of the battery cell (300), and the distance between the laser emitter (180) and the tape (310) is a preset distance; then, the second driving mechanism (160) is used to drive the laser emitter (180) to move along the third direction to directly above the end point of the disconnection position of the tape (310), so as to completely cut the tape (310), and the tape (310) cutting operation is completed; The laser cutting device further comprises a telescopic mechanism (220) and a limit block (230), wherein the telescopic mechanism (220) is mounted on the workbench (110) and connected to the limit block (230), and the telescopic mechanism (220) is used to drive the limit block (230) to extend above the conveying mechanism (190) to stop the battery cell (300) at the preset position; The laser cutting device further comprises a position sensor (240), the position sensor (240) being mounted on the workbench (110) and being electrically connected to the telescopic mechanism (220) and the conveying mechanism (190). The position sensor (240) is configured to control the telescopic mechanism (220) to drive the limit block (230) to extend and control the conveying mechanism (190) to pause when detecting that the battery cell (300) moves to the preset position.

2. The laser cutting device according to claim 1, characterized in that: The number of the telescopic mechanisms (220) and the number of the limit blocks (230) are both two, the two telescopic mechanisms (220) are relatively arranged on two sides of the workbench (110), and each telescopic mechanism (220) is connected to one limit block (230).

3. The laser cutting device according to claim 1, characterized in that: The conveying mechanism (190) includes a driving motor (191), a driving wheel (192), a driven wheel (193) and a transmission belt (194). The driving motor (191) is installed at one end of the workbench (110) and is connected to the driving wheel (192) in a transmission manner. The driving wheel (192) is connected to the driven wheel (193) through the transmission belt (194). The driven wheel (193) is rotatably installed at the other end of the workbench (110). The transmission belt (194) is used to drive the battery cell (300) to move.

4. The laser cutting device according to claim 1, characterized in that: The first driving mechanism (120), the lifting mechanism (140) and the second driving mechanism (160) are all hydraulic cylinders, pneumatic cylinders or electric push rods.

5. A battery recycling system, characterized in that: Comprising the laser cutting device according to any one of claims 1 to 4.

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