Laser-assisted sintering method for battery piece

Abstract

The invention provides a battery piece laser-assisted sintering method which comprises the following steps: placing a battery piece on a feeding transmission assembly, and transmitting the battery piece to a first transmission assembly through the feeding transmission assembly; the battery piece is transmitted to a laser sintering device through the first transmission assembly; carrying out laser sintering treatment on the battery piece through the laser sintering device; the conveying speed of the feeding conveying assembly is smaller than or equal to the conveying speed of the first conveying assembly. According to the feeding and conveying device, feeding and conveying of the battery pieces are conducted through the feeding and conveying assembly and the first conveying assembly, and by controlling the conveying speed of the feeding and conveying assembly and the first conveying assembly, material blocking can be effectively avoided, damage to the battery pieces in the conveying process is reduced, and the sintering treatment efficiency of the battery pieces is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser sintering, in particular to a method for laser-assisted sintering of a battery cell. Background Art

[0002] During the laser sintering process of the cell, the cell to be processed needs to be transported to the transmission structure through the feeding mechanism, and the transmission structure then transports the cell to the sintering area. In the prior art, the feeding mechanism directly transports the cell to the transmission structure. If the transmission structure is in motion at this time, it may cause damage to the cell. If the transmission structure is stopped to receive the material, the sintering efficiency will be affected.

[0003] In view of this, it is necessary to provide a cell laser-assisted sintering method to solve the above technical problems. Summary of the invention

[0004] In order to achieve the above-mentioned object, the present invention provides a method for laser-assisted sintering of a cell, which comprises the following steps: placing a cell on a loading and conveying assembly, wherein the loading and conveying assembly conveys the cell to a first conveying assembly; conveying the cell to a laser sintering device via the first conveying assembly; and performing laser sintering on the cell via the laser sintering device;

[0005] Wherein, the transmission speed of the loading transmission component is less than or equal to the transmission speed of the first transmission component.

[0006] As a further improvement of the present invention, the laser sintering device includes a powered roller assembly for driving the battery sheet to pass through the sintering zone, and the transmission speed of the first transmission assembly is less than or equal to the transmission speed of the powered roller assembly.

[0007] As a further improvement of the present invention, the transmission speed of the powered roller assembly is kept constant.

[0008] As a further improvement of the present invention, it also includes:

[0009] When the loading and conveying assembly is in a stationary state or is running at a first conveying speed, placing the battery sheet on the loading and conveying assembly;

[0010] Starting the loading transmission component and increasing the transmission speed of the loading transmission component so that when the battery cell reaches the starting end of the first transmission component, the loading transmission component and the first transmission component have the same transmission speed;

[0011] Or, when the loading conveyor assembly is operated at a first conveying speed, the battery sheet is placed on the loading conveyor assembly;

[0012] The transmission speed of the loading transmission component is increased so that when the battery cell reaches the starting end of the first transmission component, the loading transmission component and the first transmission component have the same transmission speed.

[0013] As a further improvement of the present invention, the feeding transmission assembly includes acceleration sections and uniform speed sections that are alternately arranged;

[0014] Alternatively, the loading and transporting assembly is accelerated throughout the entire process.

[0015] As a further improvement of the present invention, it also includes:

[0016] When the battery cell is transferred from the loading transmission component to the first transmission component, it is determined whether the transmission speed of the first transmission component is equal to the transmission speed of the laser sintering device;

[0017] If yes, keep the transmission speed of the first transmission component unchanged;

[0018] If not, the transmission speed of the first transmission component is increased so that when the battery sheet reaches the starting end of the laser sintering device, the first transmission component and the powered roller component have the same transmission speed.

[0019] As a further improvement of the present invention, the first transmission component includes acceleration sections and uniform speed sections arranged alternately;

[0020] Alternatively, the first transmission component is accelerated throughout the entire process.

[0021] As a further improvement of the present invention, the loading transmission component is also paused or the transmission speed of the loading transmission component is slowed down when the battery cells on the loading transmission component are transferred to the first transmission component.

[0022] As a further improvement of the present invention, the “placing the battery cell on the loading and conveying assembly” includes:

[0023] Place the battery cells to be laser-assisted sintered in the loading box;

[0024] Lift the battery cell to the material removal position through the lifting part;

[0025] The battery sheet at the loading position is moved to the loading transmission component by the loading component.

[0026] As a further improvement of the present invention, the “raising the battery sheet to the material taking position” includes:

[0027] Determine whether there are battery cells in the loading box;

[0028] If yes, the lifting member is activated to drive the carrier plate and the battery cells thereon to rise;

[0029] The third photoelectric sensor detects whether a battery cell rises to the material taking position;

[0030] If yes, close the lifting member and wait for material to be taken;

[0031] If not, determining whether the lifting member has risen to a maximum height;

[0032] If so, call the police;

[0033] If not, continue to raise the lifting member;

[0034] If not, call the police.

[0035] As a further improvement of the present invention, the “moving the battery cell at the loading position to the loading transmission component by the loading component” includes:

[0036] S1, determine whether the loading component is in a state without battery cells. If not, wait for the loading component to place the battery cells on the loading transmission component and then perform the material picking operation. If yes, move the loading component to the top of the loading box, turn on the air knife, switch the loading component to the material suction state, and jump to S2;

[0037] S2, after the first preset time, determine whether the loading assembly sucks the battery cell, if not, cancel the sucking state of the loading assembly and suck again; if yes, move the loading assembly to just above the loading transmission assembly and jump to S3;

[0038] S3, determine whether the loading and conveying assembly allows loading, if so, switch the loading and conveying assembly to the discharge state, and place the battery cell on the loading and conveying assembly; if not, keep the loading and conveying assembly in the suction state until the loading and conveying assembly allows loading.

[0039] As a further improvement of the present invention, before “increasing the transmission speed of the feeding transmission component”, it also includes:

[0040] Determine whether the battery cell on the first transmission component can reach the preset position when the loading transmission component transports the battery cell to the starting end of the first transmission component; or determine whether the battery cell on the first transmission component reaches the preset position;

[0041] If so, the battery cell is transported to the first transport component through the loading transport component;

[0042] If not, the transmission speed of the loading transmission component is slowed down or the loading transmission component is paused.

[0043] As a further improvement of the present invention, it also includes detecting whether the current cell sheet is a single sheet by a sixth photoelectric sensor on the feeding transmission component:

[0044] If so, transferring the battery cell to the first transfer component;

[0045] If not, stop transferring the battery slice and sound an alarm.

[0046] As a further improvement of the present invention, it also includes:

[0047] The laser sintered battery sheet is transferred to the second transfer assembly through the powered roller assembly;

[0048] The battery sheet is transferred to the unloading device through the second transmission component, and unloaded through the unloading device;

[0049] S1, judging whether the time from the last unloading reaches the second preset time, if not, the unloading component remains stationary; if so, moving the unloading component to the top of the unloading transmission component and jumping to S2;

[0050] S2, determine whether the battery cell has reached the pick-up position, if not, continue to transfer the battery cell; if yes, stop the unloading and conveying assembly, switch the unloading assembly to the suction state to suck the battery cell, and jump to S3;

[0051] S3, after the second preset time, determine whether the unloading component successfully absorbs the battery cell, if so, move the unloading component to the top of the unloading box, cancel the unloading component's absorption state, place the battery cell in the unloading box, and increase the number of battery cells in the unloading box by one; if not, cancel the unloading component's absorption state and re-absorb the battery cell;

[0052] Or, the “cutting” includes:

[0053] S1, determine whether the battery cell reaches the pick-up position, if not, continue to transport the battery cell; if yes, stop the unloading conveying component, move the unloading conveying component to the top of the unloading conveying component, switch the unloading component to the suction state to suck the battery cell, and jump to S2;

[0054] S2. After the second preset time, determine whether the unloading component successfully absorbs the battery cell. If so, move the unloading component to the top of the unloading box, cancel the suction state of the unloading component, place the battery cell in the unloading box, and increase the number of battery cells in the unloading box by one; if not, cancel the suction state of the unloading component and re-absorb the battery cell.

[0055] Beneficial effects of the present invention: The present invention performs loading and transmission of battery cells through the loading and transmission component and the first transmission component. By controlling the transmission speed of the loading and transmission component and the first transmission component, it is possible to effectively avoid material blockage, reduce damage to the battery cells during transmission, and accelerate the laser sintering processing efficiency of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0057] Figure 1 A top view of the laser-assisted sintering system for a cell of the present invention;

[0058] Figure 2 It is a side view of the laser-assisted sintering system for a cell of the present invention;

[0059] Figure 3 It is an overall schematic diagram of the transmission part of the present invention;

[0060] Figure 4 It is a schematic diagram of a feeding component-a first transmission component of the present invention;

[0061] Figure 5 It is a schematic diagram of the battery sheet feeding device of the present invention in the material taking position;

[0062] Figure 6 It is a schematic diagram of the battery sheet loading device of the present invention in the loading position;

[0063] Figure 7 It is a structural schematic diagram of the feeding transmission component of the present invention;

[0064] Figure 8 It is a structural schematic diagram of the feeding box of the present invention;

[0065] Fig. 9 It is a structural schematic diagram of the feeding box of the present invention in an ascending state;

[0066] Fig.10 A top view of the feeding box of the present invention;

[0067] Fig.11 It is a schematic diagram of the structure of the air knife of the present invention;

[0068] Fig.12 It is a structural schematic diagram of the first track-feeding assembly of the present invention;

[0069] Fig.13 It is a structural schematic diagram of the feeding assembly of the present invention;

[0070] Fig.14 It is a schematic structural diagram of the first transmission component of the present invention;

[0071] Fig.15 It is a schematic diagram of the structure of the correction piece of the present invention;

[0072] Fig.16It is a schematic diagram of the overall structure of the laser sintering device of the present invention;

[0073] Fig.17 A schematic diagram of connecting the power supply roller assembly of the present invention to electricity;

[0074] Fig.18 It is a structural schematic diagram of the second transmission component-unloading component of the present invention;

[0075] Fig.19 It is a structural schematic diagram of the blanking assembly of the present invention;

[0076] Fig. 20 It is a schematic diagram of the overall process of the laser sintering method of the present invention;

[0077] Fig.21 It is a schematic diagram of transmission speed control of the laser sintering method of the present invention;

[0078] Fig. 22 It is a schematic diagram of the process of raising the battery sheet to the loading position of the present invention;

[0079] Fig.23 This is a schematic diagram of the process of taking and loading materials from the loading suction cup of the present invention;

[0080] Fig.24 It is a schematic diagram of the process of blanking of the present invention;

[0081] Fig.25 A schematic diagram of a scanning path on a battery cell provided by an embodiment of the present invention;

[0082] Fig.26 A schematic diagram of a scan path provided by yet another embodiment of the present invention;

[0083] Fig. 27 A schematic diagram of a scan path provided by yet another embodiment of the present invention;

[0084] Fig.28 A schematic diagram of a scan path provided in yet another embodiment of the present invention. DETAILED DESCRIPTION

[0085] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0086] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0087] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0088] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0089] like Figures 1 to 19 As shown, the cell laser-assisted sintering system provided by the invention includes a loading device 100 arranged along the cell transmission direction, a first transmission component 200 and a laser-assisted sintering device 300.

[0090] The loading device 100 is used to place the battery cells to be sintered and perform loading operations. The first transmission component 200 is used to transfer the battery cells from the loading device 100 to the laser-assisted sintering device 300. The laser-assisted sintering device 300 is used to perform laser sintering on the battery cells.

[0091] Reference Figures 5 to 13 The feeding device 100 includes a feeding transmission component 101, a feeding box 102 and a feeding component 104.

[0092] The loading and conveying assembly 101 is used to convey the cells to be processed to the first conveying assembly 200 . The loading box 102 is used to place the cells to be sintered, and the loading assembly 104 is used to move the cells to be sintered in the loading box 102 to the loading and conveying assembly 101 .

[0093] In some embodiments, the loading device 100 further includes a first track 103, and the first track 103 extends along the arrangement direction of the loading transmission component 101 and the loading box 102. The loading component 104 is slidably mounted on the first track 103, and the loading component 104 reciprocates between the loading transmission component 101 and the loading box 102 along the first track 103, so as to transfer the battery cells to be processed in the loading box 102 to the loading transmission component 101 for subsequent battery cell processing.

[0094] For ease of description, when the loading assembly 104 moves along the first track 103 to directly above the loading transmission assembly 101, the position of the loading assembly 104 at this time is defined as the loading position. When the loading assembly 104 moves along the first track 103 to directly above the loading box 102, the position of the loading assembly 104 at this time is defined as the taking position.

[0095] The feeding transmission assembly 101 includes a support frame 101a, a transmission belt 101b connected to the support frame 101a, and a driving motor 101c for driving the transmission belt 101b to move.

[0096] Specifically, a pair of driving wheels is provided at one end of the support frame 101a, and a pair of driven wheels is provided at the other end, and the transmission belt 101b is connected between the driving wheels and the driven wheels. A driving shaft is connected between the pair of driving wheels, and the output end of the driving motor 101c is connected to the driving shaft through a belt. The driving motor 101c drives the driving shaft to rotate, and the rotation of the driving shaft drives the driving wheels to rotate, thereby driving the transmission belt 101b to move, so as to transmit the battery cells placed on the transmission belt 101b by the loading assembly 104.

[0097] The feeding transmission component 101 further includes a fifth photoelectric sensor 101d located at the starting end of the transmission belt 101b and a sixth photoelectric sensor 101e spaced apart from the fifth photoelectric sensor 101d.

[0098] The fifth photoelectric sensor 101d is located below the conveyor belt 101b and directly opposite to the loading position of the loading assembly 104. Thus, when the loading assembly 104 places the battery sheet to be processed on the conveyor belt 101b, the fifth photoelectric sensor 101d can detect the battery sheet, thereby controlling the drive motor 101c to start to transport the battery sheet. In this embodiment, the fifth photoelectric sensor 101d is fixed to the support frame 101a.

[0099] The sixth photoelectric sensor 101e is located downstream of the fifth sensor 101d, and the sixth photoelectric sensor 101e includes an ultrasonic transmitter and an ultrasonic receiver respectively located above and below the conveyor belt 101b. Under normal circumstances, when the battery cell is transmitted to the location of the sixth photoelectric sensor 101e via the conveyor belt 101b, the ultrasonic transmitter transmits an ultrasonic beam to the battery cell, and the ultrasonic beam causes the battery cell to vibrate, generating corresponding sound waves on the other side of the battery cell, which are received by the ultrasonic receiver. If there are overlapping battery cells transmitted to the location of the sixth photoelectric sensor 101e, the ultrasonic beam will become very weak when passing through multiple battery cells, and cannot be received by the ultrasonic receiver, so that the overlapping can be detected.

[0100] In this embodiment, the sixth photoelectric sensor 101e is installed on a fixing frame 101f, and the fixing frame 101f is located at an end of the supporting frame 101a away from the fifth photoelectric sensor 101d.

[0101] The loading box 102 is spaced apart from the loading transmission assembly 101. Preferably, the arrangement direction of the loading box 102 and the loading transmission assembly 101 is perpendicular to the transmission direction of the battery cells. Meanwhile, the extension direction of the first track 103 is perpendicular to the extension direction of the transmission belt 101b.

[0102] The loading box 102 includes a bottom plate 102a, a plurality of limit plates 102b fixed around the bottom plate 102a, a supporting plate 102c located above the bottom plate 102a, and a lifting member 102d for driving the supporting plate 102c to move in a height direction.

[0103] The limiting plates 102b are arranged perpendicular to the bottom plate 102a, and a plurality of the limiting plates 102b enclose a storage area for placing battery cells to prevent the stacked battery cells from tipping over. In this embodiment, two limiting plates 102b are arranged on each side of the bottom plate 102a, and the two limiting plates 102b are arranged at intervals.

[0104] The battery cells are stacked on the carrier plate 102c. The carrier plate 102c and the battery cells thereon are moved in the height direction by the lifting member 102d so that the loading assembly 104 can absorb the battery cells. After the loading assembly 104 takes away the top battery cell, the lifting member 102d drives the carrier plate 102c to rise to a certain height, the rising height being the same as the thickness of the battery cell, so that the next battery cell rises to the position of the original top battery cell, that is, each time the loading assembly 104 moves to the material taking position, the distance between the loading assembly 104 and the top battery cell is kept the same.

[0105] The bottom plate 102a is provided with a first through hole 102a-1, and the lifting member 102d is located below the bottom plate 102a. The output end of the lifting member 102d passes through the first through hole 102a-1 and is connected to the carrying plate 102c.

[0106] The lifting member 102d is an electric cylinder, and the lifting shaft of the electric cylinder passes through the first through hole 102a-1 and is connected to the carrying plate 102c. When the carrying plate 102c needs to be raised or lowered, the electric cylinder is started to drive the carrying plate 102c to rise or fall. Of course, the lifting member 102d can also adopt other structures that can drive the carrying plate 102c to rise or fall.

[0107] The loading box 102 further includes a first photoelectric sensor 102e located below the bottom plate 102a. The carrying plate 102c is provided with a second through hole 102c-1, which partially overlaps with the first through hole 102a-1. The first photoelectric sensor 102e emits light in the height direction and passes through the first through hole 102a-1 and the second through hole 102c-1.

[0108] The first photoelectric sensor 102e is used to detect whether there are still unprocessed battery cells on the carrier board 102c. When there are still unprocessed battery cells on the carrier board 102c, the light emitted by the first photoelectric sensor 102e passes through the first through hole 102a-1 and the second through hole 102c-1 to the battery cells, and returns to the first photoelectric sensor 102e after being reflected by the battery cells, so as to determine that there are still unprocessed battery cells on the carrier board 102c. When there are no unprocessed battery cells on the carrier board 102c, the light emitted by the first photoelectric sensor 102e passes through the first through hole 102a-1 and the second through hole 102c-1 and is directly emitted, and the first photoelectric sensor 102e cannot receive the reflected return light, so as to determine that there are no unprocessed battery cells on the carrier board 102c, and the operator can be reminded to perform patching.

[0109] The loading box 102 further includes a plurality of air knives 102f located outside the limiting plate 102b, wherein the air outlet direction of the air knives 102f is at an angle to the height direction. The air knives 102f are used to blow air to the stacked battery cells, thereby separating the battery cells and preventing the battery cells from sticking to each other, which causes the loading assembly 104 to absorb multiple battery cells at a time.

[0110] The wind knife 102f includes a fixed plate 102f-1 and a blowing block 102f-2 movably mounted on the fixed plate 102f-1 in the height direction. The fixed plate 102f-1 is arranged parallel to the limit plate 102b, and a sliding groove extending in the height direction is provided on the fixed plate 102f-1, and the blowing block 102f-2 is installed in the sliding groove by a fixing bolt. The height adjustment of the blowing block 102f-2 can be completed by moving the blowing block 102f-2 along the sliding groove and then tightening the fixing bolt.

[0111] The height of the blowing block 102f-2 is adjusted so that the blowing port is aimed at the topmost battery cell, and the gas blown by the blowing block 102f-2 can be blown toward the battery cell from the gap between the limiting plates 102b. By blowing air toward the battery cell, the topmost battery cell is blown up and separated from the other battery cells, and then the loading assembly 104 absorbs the battery cell, thereby effectively preventing the loading assembly 104 from sucking multiple battery cells at a time.

[0112] In this embodiment, four wind knives 102f are provided, and two wind knives 102f are arranged in groups on opposite sides of the bottom plate 102a, and two wind knives 102f are arranged along the diagonal lines of the battery sheet, so as to facilitate blowing up the battery sheet. Preferably, the blowing block 102f-2 blows air upward at an angle.

[0113] The loading box 102 further includes a second photoelectric sensor 102g and a third photoelectric sensor 102h located above the bottom plate 102a. The second photoelectric sensor 102g and the third photoelectric sensor 102h emit light in the horizontal direction. The second photoelectric sensor 102g is located above the air knife 102f to detect the battery slices separated by the air knife 102f. The third photoelectric sensor 102h is located below the second photoelectric sensor 102g to detect the battery slices rising to the material removal position.

[0114] When the topmost cell on the carrier plate 102c rises to the material removal position, the light emitted by the third photoelectric sensor 102h will be reflected by the topmost cell and return to the third photoelectric sensor 102h. When the topmost cell is taken away by the loading assembly 104, the light emitted by the third photoelectric sensor 102h is no longer blocked by the cell and reflected back. Then the lifting member 102d drives the carrier plate 102c to rise, and the cells on the carrier plate 102c rise synchronously until the topmost cell blocks and reflects the light emitted by the third photoelectric sensor 102h again, and the lifting member 102d stops.

[0115] The third photoelectric sensor 102h can ensure that the height of the battery cell is kept constant, so that the wind knife 102f can separate the battery cells. Each time the top battery cell is taken away by the loading assembly 104, the next battery cell will rise to the height of the top battery cell under the action of the lifting member 102d, so that each time the loading assembly 104 moves to the loading position, the distance between the loading assembly 104 and the top battery cell is the same, which is convenient for the loading assembly 104 to take the material.

[0116] The second photoelectric sensor 102g is located above the wind knife 102f, and the second photoelectric sensor 102g is used to detect the battery cells separated by the wind knife 102f.

[0117] In one case, the height of the second photoelectric sensor 102g is the same as the height of the cell after being blown up normally by the wind knife 102f. When the third photoelectric sensor 102h detects that the cell has reached the material removal position, the wind knife 102f is turned on to blow air to the cell to blow up the top cell and separate it from the other cells. When the light emitted by the second photoelectric sensor 102g is blocked by the cell, it indicates that the cell at the material removal position is blown up normally, and the material can be removed by the loading assembly 104. When the light emitted by the second photoelectric sensor 102g is not blocked by the cell, it indicates that the cell is blown away.

[0118] In another case, the height of the second photoelectric sensor 102g is greater than the height of the battery cell after being normally blown up by the wind knife 102f. When the third photoelectric sensor 102h detects that the battery cell has reached the material collection position, the wind knife 102f is turned on to blow air to the battery cell to blow up the top battery cell and separate it from other battery cells. When the light emitted by the second photoelectric sensor 102g is not blocked by the battery cell, it indicates that the battery cell located at the material collection position is blown up normally, and the material can be collected by the loading component 104 at this time. When the light emitted by the second photoelectric sensor 102g is blocked by the battery cell, it indicates that the battery cell is blown away. The first track 103 extends along the arrangement direction of the loading transmission component 101 and the loading box 102, and the loading component 104 reciprocates between the loading transmission component 101 and the loading box 102 along the first track 103. The extension direction of the first track 103 is perpendicular to the transmission direction of the battery cell.

[0119] The first track 103 is provided with a positioning sensor at the material picking position and the material loading position. When the material loading component 104 moves to the material picking position or the material loading position, the positioning sensor can sense that the material loading component 104 has reached the specified position, thereby stopping the movement to perform the material picking and loading operations. The positioning sensor can also be a photoelectric sensor.

[0120] The loading component 104 includes a loading suction cup 104a, a first driving member 104b for driving the loading suction cup 104a to move along the first track 103, and a fourth photoelectric sensor 104c located on the loading suction cup 104a.

[0121] Under the action of the first driving member 104b, the loading suction cup 104a is driven to reciprocate between the picking position and the loading position along the first track 103. When the loading suction cup 104a reaches the picking position, it sucks the battery cell in the loading box 102, and then moves to the loading position to place the sucked battery cell on the loading transmission assembly 101.

[0122] The bottom surface of the loading suction cup 104a is provided with a groove. When the loading suction cup 104a moves to the top of the loading box 102, the air in the groove is extracted to form a negative pressure at the position of the groove to absorb the battery cell. When the loading suction cup 104a moves to the top of the loading transmission assembly 101, the negative pressure environment in the groove is cancelled so that the battery cell falls off onto the loading transmission assembly 101.

[0123] The first driving member 104b drives the loading suction cup 104a to move along the first track 103. A driving screw may be provided on the first track 103, and a nut threadedly connected to the driving screw may be provided on the loading suction cup 104a, and the driving screw may be driven to rotate by the first driving member 104b, so that the loading suction cup 104a moves along the first track 103. Alternatively, a rack may be provided on the first track 103, and a gear meshing with the rack may be provided on the loading suction cup 104a, and the gear may be driven to rotate by the first driving member 104b, so that the loading suction cup 104a moves along the first track 103. Of course, the present application is not limited thereto, as long as the loading suction cup 104a can move along the first track 103.

[0124] The fourth photoelectric sensor 104c is used to detect the battery cell sucked by the loading suction cup 104a. When the loading suction cup 104a sucks the battery cell, the light emitted by the fourth photoelectric sensor 104c is blocked and reflected by the battery cell.

[0125] The loading assembly 104 further includes a second driving member 104d for driving the loading suction cup 104a to move in the height direction. The loading suction cup 104a moves in the height direction. On the one hand, after sucking the battery cell, the loading suction cup 104a can be shaken to prevent the battery cell from sticking and shake off the sticking battery cell; on the other hand, the loading suction cup 104a can be lowered to place the battery cell on the loading transmission assembly 101. The second driving member 104d can be a cylinder.

[0126] The battery cells after the stacking inspection are transferred to the location of the first transfer component 200 via the loading transfer component 101 , and then move from the loading transfer component 101 to the first transfer component 200 .

[0127] Reference Figure 4 , Fig.14 and Fig.15 The feeding transmission component 101 and the first transmission component 200 are separately arranged.

[0128] The separate arrangement of the loading transmission component 101 and the first transmission component 200 can make the loading transmission component 101 and the first transmission component 200 have different movement states or movement speeds.

[0129] One of the purposes of the split setting is to prevent blockage.

[0130] When the sintering process of the laser-assisted sintering device 300 is slow or abnormal, the feeding transmission component 101 can be stopped to stop transmitting the battery cells to the first transmission component 200, so as to prevent the first transmission component 200 from having too many battery cells and causing blockage. The feeding transmission component 101 is used to control the number of battery cells on the first transmission component 200.

[0131] The second purpose of the split setting is to reduce damage to the battery cells during transmission.

[0132] When placing the battery cells on the loading assembly 104 on the loading transmission assembly 101, the loading transmission assembly 101 can remain stationary, thereby preventing the battery cells from slipping and the battery cells and the loading transmission assembly 101 from sliding relative to each other, causing damage to the battery cells. At this time, the first transmission assembly 200 can normally transmit the battery cells to the laser-assisted sintering device 300 without affecting the subsequent process. That is, the motion states of the loading transmission assembly 101 and the first transmission assembly 200 are different. After placing the battery cells on the loading transmission assembly 101, the loading transmission assembly 101 is accelerated and started until it reaches the same operating speed as the first transmission assembly 200, so as to smoothly transmit the battery cells to the first transmission assembly 200.

[0133] The third purpose of the split setting is to improve the battery cell sintering efficiency of the entire equipment and maintain the consistency of the sintering process rhythm.

[0134] In the absence of the loading and transporting assembly 101, in order to prevent relative sliding between the battery cell and the first transporting assembly 200 during the transport process, it is necessary to stop the first transporting assembly 200 to receive the material, and then accelerate the first transporting assembly 200 so that it reaches the same operating speed as the laser-assisted sintering device 300, and only when the battery cell is completely entered into the laser-assisted sintering device 300 can the first transporting assembly 200 be stopped for the next material reception.

[0135] Due to the existence of the feeding transmission component 101, it is possible to avoid frequent opening and closing of the first transmission component 200, and to receive materials through the feeding transmission component 101. The running speed of the first transmission component 200 can always be kept consistent with the running speed of the laser-assisted sintering device 300. First, it can ensure that each battery cell on the first transmission component 200 can enter the laser-assisted sintering device 300 at the same speed as the laser-assisted sintering device 300; secondly, it can ensure the consistency of the running time of the battery cells on the first transmission component 200. When the feeding interval is constant, it can ensure that the time interval between two adjacent battery cells entering the laser-assisted sintering device 300 is the same; finally, when feeding, there is no need to wait for the battery cells to completely enter the laser-assisted sintering device 300.

[0136] In some embodiments, there is a distance between the loading transmission component 101 and the first transmission component 200, and the distance between the two is less than half of the length of the battery cell that needs to be sintered.

[0137] The first transmission component 200 includes a first transmission belt 201, a correction zone located on the first transmission belt 201, a seventh photoelectric sensor 202 for detecting the transmission of battery cells to the correction zone, and a correction member 203 located downstream of the seventh photoelectric sensor 202 for correcting the position of the battery cells.

[0138] The first conveyor belt 201 and the feeding conveyor assembly 101 are separately provided. The transmission structure of the first conveyor belt 201 is the same as the transmission structure of the feeding conveyor assembly 101, and will not be described in detail here.

[0139] The seventh photoelectric sensor 202 is used to detect the battery cell transmitted to the correction area. A fixing plate is provided on the first conveyor belt 201, and the seventh photoelectric sensor 202 is fixed on the fixing plate. When the seventh photoelectric sensor 202 detects the battery cell, the correction member 203 is activated to correct the battery cell to prevent the battery cell from tilting or deviating, which affects the laser sintering process of the battery cell.

[0140] The correction member 203 includes a correction belt 203a, a correction motor 203b for driving the correction belt 203a to move, and two correction blocks 203c connected to the correction belt 203a. The first transmission belt 201 is located between the two correction blocks 203c, and the movement of the correction belt 203a drives the two correction blocks 203c to move toward or away from each other.

[0141] The correction motor 203b is fixed on the bracket of the first conveyor belt 201, and the correction member 203 also includes a connecting wheel 203d spaced apart from the correction motor 203b, and the correction belt 203a is connected between the output end of the correction motor 203b and the connecting wheel 203d. The arrangement direction of the correction motor 203b and the connecting wheel 203d is perpendicular to the transmission direction of the battery cell, and the distance between the two is greater than the width of the first conveyor belt 201. The two correction blocks 203c are respectively connected to the two opposite sections of the correction belt 203a, so that when the correction belt 203a moves, the two correction blocks 203c move toward or oppositely. A plurality of correction wheels are arranged on the correction block 203c, and the plurality of correction wheels are spaced apart along the transmission direction of the battery cell to correct the battery cell.

[0142] Under normal conditions, the distance between the two correction blocks 203c is greater than the width of the first conveyor belt 201, and the two correction blocks 203c are at the same distance from the first conveyor belt 201, and the battery cell can move along the first conveyor belt 201 to between the two correction blocks 203c.

[0143] When the seventh photoelectric sensor 202 detects the battery cell, the battery cell just moves between the two correction blocks 203c. At this time, the correction motor 203b is started to drive the correction belt 203a to move, and the movement of the correction belt 203a drives the two correction blocks 203c on it to move toward each other, that is, move toward the battery cell at the same time. If the battery cell is deviated or tilted, at least part of the correction wheel of one of the correction blocks 203c will first contact the battery cell and push the battery cell to move toward the other correction block 203c until the spacing between the two correction blocks 203c and the width of the battery cell are consistent, and the correction motor 203b stops working to complete the correction of the battery cell.

[0144] After correction, the central axis of the cell coincides with the central axis of the first conveyor belt 201. The two correction blocks 203c maintain this state, and under the guidance of the correction wheel, the cell enters the laser-assisted sintering device 300 in a corrected state, thereby preventing the cell from entering the laser-assisted sintering device 300 in a deviated or tilted state, which affects the sintering quality.

[0145] When the seventh photoelectric sensor 202 cannot detect the battery cell, the battery cell leaves the correction range of the correction member 203. At this time, the correction motor 203b is started again to drive the correction belt 203a to move, and the movement of the correction belt 203a drives the two correction blocks 203c thereon to move in the opposite direction to restore to the initial state.

[0146] Reference Fig.16 and Fig.17 The laser-assisted sintering device 300 includes a laser assembly 301 for emitting laser light to the cell, and a powered roller assembly 302 for driving the cell to move and applying a reverse voltage to the cell. The powered roller assembly 302 is arranged at intervals along the cell transmission direction, and can drive the cell to move while applying a reverse voltage to the cell.

[0147] The power-on roller assembly 302 includes a first roller assembly 302a and a second roller assembly 302b arranged in the height direction, and the battery sheet is located between the first roller assembly 302a and the second roller assembly 302b. The first roller assembly 302a and / or the second roller assembly 302b can be driven to rotate by an external device such as a motor, thereby driving the battery sheet to move.

[0148] The first roller assembly 302a contacts the lower surface of the battery cell, and the second roller assembly 302b contacts the upper surface of the battery cell. The first roller assembly 302a and the second roller assembly 302b are respectively connected to the positive and negative electrodes of a power source to apply a reverse voltage to the battery cell.

[0149] The laser assembly 301 is used to emit laser light between the two groups of the powered roller assemblies 302, and the laser light is radiated on the battery cell to which the reverse voltage is applied. The laser light has a certain radiation area, and when the battery cell passes through the radiation area of ​​the laser light, an induced current is generated, and when the current flows through the area with high contact resistance, a higher temperature is generated, which plays a role similar to sintering, thereby reducing the contact resistance.

[0150] The laser assembly 301 includes a laser source for emitting laser light and a shaping assembly for shaping the laser light into a square laser spot. The laser assembly 301 also includes a galvanometer and a field mirror. The galvanometer is used to receive the shaped laser spot and adjust the scanning position, scanning amplitude and scanning speed of the laser spot according to the scanning parameters. The field mirror is fixedly connected to the galvanometer and is used to focus the laser spot on the surface of the battery cell. The square laser spot can scan and irradiate the entire battery cell during the movement of the battery cell.

[0151] In this embodiment, the laser assembly 301 is located above the powered roller assembly 302. Of course, in other embodiments, it can also be arranged below the powered roller assembly 302.

[0152] The laser-assisted sintering device 300 further includes an eighth photoelectric sensor 303, which is located upstream of the laser assembly 301 and is used to detect the battery sheet transmitted to the power roller assembly 302. When the eighth photoelectric sensor 303 detects the battery sheet, the laser assembly 301 is turned on and the power roller assembly 302 is powered on.

[0153] Reference Figure 25 to Figure 28 The laser emitted by the laser assembly 301 forms a light spot on the battery cell, and the galvanometer is used to make the light spot perform multiple cycles of scanning along a preset scanning path.

[0154] In the transverse direction perpendicular to the front-rear direction, the two sides of the battery sheet are respectively the first side and the second side, and the transverse direction is Fig.25 The middle is the left and right direction, Fig.25 In the embodiment, the left side of the battery cell is the first side, and the right side is the second side. In other embodiments, the right side of the battery cell may be the first side, and the left side may be the second side.

[0155] The scanning path includes a first point O from the first side 1 Move to the second point O on the second side 2 The first path S1, from the second point O 2 Move back to the third point O 3 The second path S2 and the path from the third point O 3 Move to the third path S3 of the first side. The scanning path is a closed loop path. 1 is the starting point and the end point of the scanning path, that is, after the irradiation point moves from the second side to the first side along the third path S3, it will return to the first point O 1 .

[0156] The first path S1 extends obliquely from the back to the front or is parallel to the transverse direction, and the third path S3 extends obliquely from the back to the front.

[0157] like Fig.25 As shown, in one embodiment of the present invention, the third path S3 starts from the third point O 3 Move to the fourth point O on the first side of the battery cell 4 , the scanning path also includes the fourth point O 4 Move back to the first point O 1 Thus, the scanning path is generally in the shape of a figure 8 or an hourglass, and the light spot is cyclically scanned along the scanning path in the shape of a figure 8 or an hourglass.

[0158] Specifically, the first path S1 extends obliquely from the back to the front, and when the light spot moves along the first path S1, it not only moves from the first side to the second side in the transverse direction, but also moves forward a certain distance in the front-to-back direction. As described above, the third path S3 extends obliquely from the back to the front, and when the light spot moves along the third path S3, it not only moves from the second side to the first side in the transverse direction, but also moves forward a certain distance in the front-to-back direction.

[0159] First point O 1 and the second point O 2 The distance in the front-back direction, the third point O 3 and the fourth point O 4 The distance in the front-to-back direction and the second point O 2 and the third point O 3 The distances in the front-to-back direction are all equal to H. The distance that the light spot moves forward when it moves along the first path S1 is H, and the distance that the light spot moves forward when it moves along the third path S3 is also H.

[0160] It can be imagined that in the above case, the fourth point O 4 and the first point O 1 The distance in the front-to-back direction is also equal to H. In the process of the light spot completing a scan, the distance the battery cell moves forward is equal to 2H.

[0161] In this embodiment, both ends of the first path S1 and both ends of the third path S3 extend beyond the battery cell in the lateral direction. Thus, when the light spot moves along the first path S1 and the third path S3, it can completely scan the battery cell in the lateral direction. The light spot scans in a cycle multiple times along the scanning path, and the scanned area can cover the battery cell.

[0162] Specifically, the ratio of the length of the first path or the third path to the size H of the light spot in the front-to-back direction is not less than 10.

[0163] The lengths of the first path S1 and the third path S3 are equal, and the lengths of the second path S2 and the fourth path S4 are also equal. If the cell moves forward at a constant speed, the distance 2H that the cell moves forward during the process of the light spot completing a scan can be divided into: 1Move to the second point O 2 When the cell moves forward by a distance H, the light spot moves from the third point O along the third path S3. 3 Move to the fourth point O 4 When the light spot moves forward along the first path S1, the battery cell moves forward by a distance of H. Since the light spot moves forward by a distance of H when it moves along the first path S1 and by a distance of H when it moves along the third path S3, when the light spot moves along the first path S1 and the third path S3, the battery cell moves synchronously with the light spot. Thus, when the light spot scans cyclically along the scanning path, the several strip areas scanned by the light spot on the battery cell are parallel to the transverse direction and cover the battery cell, and the light spot can basically scan all areas of the battery cell.

[0164] It can be understood that the first point O 1 and the second point O 2 The distance in the front-back direction, the third point O 3 and the fourth point O 4 The distance in the front-to-back direction and the second point O 2 and the third point O 3 The distance in the front-to-back direction may also be slightly larger or smaller than the size H of the light spot in the front-to-back direction.

[0165] The relationship between the moving speed of the light spot and the forward moving speed of the cell is illustrated below. Assume that the light spot is a rectangular laser spot of 2.5 mm*2.5 mm, and its size in the front-to-back direction is H=2.5 mm. The first point O 1 and the second point O 2 The distance in the lateral direction and the third point O 3 and the fourth point O 4 The distance in the horizontal direction is equal to 190mm, the length of the first path S1 and the third path S3 is approximately equal to 190mm, and the length of the second path S2 and the fourth path S4 is 2.5mm. In this way, the length of the entire scanning path is approximately 190mm*2+2.5*2=385mm. Assuming that the transmission speed of the battery cell is 300mm / s, the time required for it to move forward a distance of 2H is 5mm÷300mm / s=0.017s, then the moving speed of the light spot should be 385mm÷0.017=22647mm / s. In summary, if the transmission speed of the battery cell is 300mm / s, the moving speed of the light spot should be 22647mm / s, so that the area scanned by the light spot can basically cover the battery cell. If the transmission speed of the battery cell is greater than 300mm / s, there will be areas on the battery cell that are not scanned, resulting in missed scanning. On the contrary, some areas on the battery cell will be scanned repeatedly.

[0166] It is conceivable that in some scenarios, the moving speed of the light spot or the forward transmission speed of the battery cell can be adjusted to meet special needs of missed scanning or repeated scanning.

[0167] In another embodiment of the present invention, Fig.26 As shown, the difference between this embodiment and the previous embodiment is that, in this embodiment, the first path S1 is parallel to the transverse direction, that is, the first point O 1 and the second point O 2 The distance in the front-to-back direction is 0, and the light spot moves along the first path S1, moving from the first side to the second side in the transverse direction, but the position in the front-to-back direction remains unchanged. 3 and the fourth point O 4 The distance in the front-to-back direction is 2H, and the light spot moves along the third path S3, not only from the second side to the first side, but also from the back to the front by a distance of 2H. 4 and the first point O 1 The distance in the front-to-rear direction, ie, the length of the fourth path S4, is equal to H.

[0168] When the light spot scans cyclically according to the scanning path of this embodiment, the strip area swept on the battery when moving along the first path S1 and the strip area swept on the battery cell when moving along the third path S3 are parallel and cover the battery cell, and the light spot can basically scan all areas of the battery cell.

[0169] like Fig. 27 As shown, in another embodiment of the present invention, the third path S3 starts from the third point O 3 Move to the first point O 1 In this way, the scanning path is triangular, and the light spot scans cyclically along the triangular scanning path.

[0170] Specifically, the first path S1 extends obliquely from the back to the front, and when the light spot moves along the first path S1, it not only moves from the first side to the second side in the transverse direction, but also moves forward a certain distance in the front-to-back direction. As described above, the third path S3 extends obliquely from the back to the front, and when the light spot moves along the third path S3, it not only moves from the second side to the first side in the transverse direction, but also moves forward a certain distance in the front-to-back direction.

[0171] First point O 1 and the second point O 2 The distance in the front-to-back direction and the third point O 3 and the first point O 1 The distances in the front and rear directions are all equal to 0.5H. It can be imagined that in the above case, the second point O 2 and the third point O 3 The distance in the front-to-back direction is H. In the process of the light spot completing one scan, the distance that the battery cell moves forward is H.

[0172] It can be seen that the lengths of the first path S1 and the third path S3 are equal. If the cell moves forward at a constant speed, the distance H that the cell moves forward during the process of the light spot completing a scan can be divided into: the distance H that the light spot moves forward from the first point O along the first path S1 1 Move to the second point O 2 When the cell moves forward by a distance of 0.5H, the light spot moves from the third point O along the third path S3. 3 Move to the first point O 1 When the light spot moves forward along the first path S1, the distance it moves forward is 0.5H, and when it moves along the third path S3, the distance it moves forward is 0.5H. Therefore, when the light spot moves along the first path S1 and the third path S3, the cell moves synchronously with the light spot. In this way, when the light spot scans cyclically according to the scanning path, the several strip areas scanned by the light spot on the cell are parallel to the horizontal direction and cover the cell, and the light spot can basically scan all areas of the cell.

[0173] In another embodiment of the present invention, Fig.28 As shown, the difference between this embodiment and the previous embodiment is that, in this embodiment, the first path S1 is parallel to the transverse direction, that is, the first point O 1 and the second point O 2 The distance in the front-to-back direction is 0, and the light spot moves along the first path S1, moving from the first side to the second side in the transverse direction, but its position in the front-to-back direction remains unchanged. 3 and the first point O 1 The distance in the front-to-back direction is H, and the light spot moves along the third path S3, not only moving from the second side to the first side, but also moving forward a distance of H in the front-to-back direction.

[0174] When the light spot scans cyclically according to the scanning path of this embodiment, the strip area swept on the battery when the light spot moves along the first path S1 and the strip area swept on the battery cell when the light spot moves along the third path S3 are parallel and cover the battery cell, and the light spot can basically sweep all areas of the battery cell.

[0175] The laser-assisted sintering equipment further includes a material unloading device 400 located downstream of the laser-assisted sintering device 300 .

[0176] Reference Fig.18 and Fig.19 The unloading device 400 includes an unloading transmission component 401, an unloading box 402 spaced apart from the unloading transmission component 401, a second track 403 extending along the arrangement direction of the unloading transmission component 401 and the unloading box 402, and an unloading component 404 slidably mounted on the second track 403.

[0177] The battery cells sintered by the laser-assisted sintering device 300 are transferred to the unloading transmission component 401. The unloading transmission component 401 is used to transfer the processed battery cells. The unloading component 404 reciprocates between the unloading transmission component 401 and the unloading box 402 along the second track 403, thereby transferring the battery cells sintered on the unloading transmission component 401 to the unloading box 402.

[0178] The structure of the unloading transmission component 401 is the same as the transmission structure of the loading transmission component 101, the second track 403 and the first track 103 have the same structure and are parallel to each other, and the unloading component 404 and the loading component 104 have the same structure, which will not be repeated here.

[0179] Similarly, when the unloading assembly 404 moves along the second track 403 to the top of the unloading transmission assembly 401, the unloading assembly 404 is at the material taking position. When the unloading assembly 404 moves along the second track 403 to the top of the unloading box 402, the unloading assembly 404 is at the unloading position.

[0180] The material box 402 is tilted, and a baffle is provided on at least one side of the edge at the lowest point. Thus, when the material box assembly 404 places the sintered battery cells in the material box 402, the battery cells will slide down along the material box 402 to the position of the baffle. On the one hand, the battery cells can be automatically stacked neatly and the stacked battery cells can be prevented from falling over. On the other hand, there is no need to accurately align the material box 402 and the material box assembly 404.

[0181] A sensor is disposed in the material box 402 to detect whether there are battery cells in the material box 402 .

[0182] The unloading box 402 includes a first unloading box 402a and a second unloading box 402b, and the unloading transmission assembly 401 is located between the first unloading box 402a and the second unloading box 402b. Both the first unloading box 402a and the second unloading box 402b can be used to place the battery cells after sintering. Both the first unloading box 402a and the second unloading box 402b can be tilted. In this embodiment, the first unloading box 402a is used to place good battery cells, and the second unloading box 402b is used to place defective battery cells.

[0183] The laser sintering equipment further includes a second transmission component 500, which is located between the laser-assisted sintering device 300 and the unloading device 400, so as to transmit the battery cell after the laser-assisted sintering device 300 to the unloading device 400 through the second transmission component 500. The structure of the second transmission component 500 is the same as that of the first transmission component 200, and will not be repeated here.

[0184] By adding the second transmission component 500 between the laser-assisted sintering device 300 and the unloading device 400, when the battery cell on the unloading transmission component 401 is transferred to the material taking position, the unloading transmission component 401 can be stopped so that the unloading component 404 can absorb the battery cell. At this time, the second transmission component 500 can maintain the same transmission speed as the power roller component 302, thereby preventing the battery cell transferred from the power roller component 302 from being unable to be normally transferred to the second transmission component 500, or the battery cell transferred from the power roller component 302 from sliding friction with the second transmission component 500, causing damage to the battery cell.

[0185] Reference Figure 3 The laser sintering equipment of the present application adopts segmented transmission, specifically five-segment transmission, which includes the feeding transmission component 101, the first transmission component 200, the power roller component 302, the second transmission component 500, and the unloading transmission component 401. The five-segment transmission can speed up the sintering process efficiency of the battery cell, maintain the consistency of the sintering process rhythm, and reduce the damage to the battery cell.

[0186] The present invention also provides a laser sintering method, which can be applied to the above-mentioned laser sintering equipment.

[0187] like Figure 20 to Figure 24 As shown, the laser-assisted sintering method for a cell provided by the present invention comprises the following steps:

[0188] Loading step: placing the battery cell on the loading transmission component 101, and the loading transmission component 101 transmits the battery cell to the first transmission component 200;

[0189] Transmission step: transmitting the cell to the laser sintering device 300 through the first transmission component 200;

[0190] Laser sintering step: performing laser sintering on the battery cell by using the laser sintering device 300 .

[0191] Among them, the transmission speed of the loading transmission component 101 is less than or equal to the transmission speed of the first transmission component 200.

[0192] For the convenience of description, the transmission speed of the feeding transmission component 101 is defined as V1; the transmission speed of the first transmission component 200 is defined as V2; and the transmission speed of the laser sintering device 300 is defined as V3.

[0193] The loading step specifically includes:

[0194] Step 101, placing the battery cells to be processed in the loading box 102;

[0195] Step 102, raising the battery cell to the material taking position;

[0196] Step 103, moving the battery cell at the material taking position to the material feeding transmission 101 through the material feeding assembly 104;

[0197] Step 104, waiting for the battery cell on the first transmission component 200 to reach a preset position;

[0198] Step 105, starting the feeding transmission component 101, and accelerating the feeding transmission component 101 to the same transmission speed as the first transmission component 200;

[0199] Step 106, transporting the battery cell to a stacking detection position for stacking detection;

[0200] Step 107, transferring the battery cell to the first transfer assembly 200;

[0201] Step 108 , closing the feeding transmission component 101 .

[0202] In step 101, when the battery cells to be processed need to be placed, the lifting member 102d is started to drive the carrier plate 102c to move to the lowest position, and then the neatly stacked battery cells are placed on the carrier plate 102c, and the battery cells are located in the storage area enclosed by the limiting plate 102b.

[0203] In step 102, "raising the battery cell to the material taking position" specifically includes the following steps:

[0204] Determine whether there are battery cells in the loading box 102;

[0205] If yes, the lifting member 102d is activated to drive the carrier plate 102c and the battery cells thereon to rise;

[0206] The third photoelectric sensor 102h detects whether a battery cell rises to the material taking position;

[0207] If yes, close the lifting member 102d and wait for material to be loaded;

[0208] If not, determining whether the lifting member 102d has risen to the maximum height;

[0209] If so, call the police;

[0210] If not, continue to raise the lifting member 102d;

[0211] If not, call the police.

[0212] The first photoelectric sensor 102e is used to detect whether there are cells in the loading box 102. The light emitted by the first photoelectric sensor 102e passes through the first through hole 102a-1 and the second through hole 102c-1. If there are cells in the loading box 102, the light will be reflected by the cells to the first photoelectric sensor 102e. If there are no cells in the loading box 102, the first photoelectric sensor 102e cannot receive the reflected light, and an alarm indicating that there is no cell is issued. The alarm can be in the form of sound or light.

[0213] When there are battery cells in the loading box 102, the lifting member 102d is activated to drive the carrier plate 102c and the battery cells thereon to rise. When the top battery cell reaches the position of the third photoelectric sensor 102h, the light emitted by the third photoelectric sensor 102h is reflected by the battery cells to the third photoelectric sensor 102h, and the top battery cell reaches the material collection position, and the lifting member 102d is closed to wait for material collection. If the third photoelectric sensor 102h has not detected a battery cell when the lifting member 102d rises to the maximum height, an alarm that no battery cell can be sensed is issued, and the lifting member 102d is reset.

[0214] In step 103, "moving the battery cell at the material taking position to the material feeding transmission 101 through the material feeding assembly 104" specifically includes the following steps:

[0215] S1, determine whether the loading component 104 is in a state without a battery cell. If not, wait for the loading component 104 to place the battery cell on the loading transmission component 101 and then perform a material picking operation. If yes, move the loading component 104 to the top of the loading box 102, turn on the air knife 102f, switch the loading component 104 to the material suction state, and jump to S2;

[0216] S2, after the first preset time, determine whether the loading component 104 sucks the battery cell, if not, cancel the sucking state of the loading component 104 and suck again; if yes, move the loading component 104 to the top of the loading transmission component 101, and jump to S3;

[0217] S3, determine whether the loading transmission component 101 allows loading, if so, switch the loading component 104 to the discharge state, and place the battery cell on the loading transmission component 101; if not, keep the loading component 104 in the suction state until the loading transmission component 101 allows loading.

[0218] The fourth photoelectric sensor 104c is used to detect whether the loading suction cup 104a has a battery cell. The fourth photoelectric sensor 104c emits light downward. If there is no battery cell on the loading suction cup 104a, the fourth photoelectric sensor 104c cannot receive reflected light, and the material can be taken at this time. If there is a battery cell on the loading suction cup 104a, the light will be reflected by the battery cell to the fourth photoelectric sensor 104c, and it is necessary to wait for the loading suction cup 104a to place the battery cell on the loading transmission component 101 before taking the material.

[0219] When the loading suction cup 104a is in the state of no cell, the loading assembly 104 is moved along the first track 103 to the top of the loading box 102, and the wind knife 102f is turned on to blow up the cell at the top. The loading suction cup 104a is switched to the suction state, that is, the air in the groove on the loading suction cup 104a is extracted to form a negative pressure at the groove position to suck the cell.

[0220] After the first preset time, determine whether the loading suction cup 104a has successfully sucked the battery cell based on the detection result of the fourth photoelectric sensor 104c. If so, move the loading component 104 to directly above the loading transmission component 101; if not, cancel the material picking state of the loading suction cup 104a and suck the material again.

[0221] After the material is picked up successfully, the loading component 104 is moved along the first track 103 to the top of the loading transmission component 101. It is judged whether the loading transmission component 101 allows loading, and the judgment condition is whether there are still battery cells on the loading transmission component 101. If not, the material suction state of the loading component 104 is cancelled, and the battery cell is placed on the loading transmission component 101, and the fifth sensor 101d detects the battery cell; if yes, the material suction state of the loading component 104 is maintained, and the loading is performed after the loading transmission component 101 completes the transmission.

[0222] In step 104, the seventh photoelectric sensor 202 detects the cell transferred to the first conveyor belt 201. When the cell leaves the detection range of the seventh photoelectric sensor 202, the cell reaches the preset position, that is, enters the laser sintering device 300, and the next cell can be transferred to the first conveyor belt 201 through the loading and conveying assembly 101.

[0223] Of course, in this step, it can also be determined whether the battery cell on the first transmission component 200 can reach the preset position when the loading transmission component 101 delivers the battery cell to the starting end of the first transmission component 200. If so, the battery cell is delivered to the first transmission component 200 by the loading transmission component 101; if not, the transmission speed of the loading transmission component 101 is reduced or the loading transmission component 101 is paused.

[0224] In step 105, in the initial state, the feeding transmission component 101 is in a stationary state to wait for feeding, that is, V1 is 0. The first transmission component 200 is in a running state, and the transmission speed is V2.

[0225] When the battery cell is placed on the loading transmission component 101, the loading transmission component 101 is started and the transmission speed of the loading transmission component 101 is increased so that when the battery cell reaches the starting end of the first transmission component 200, the loading transmission component 101 and the first transmission component 200 have the same transmission speed, thereby smoothly transmitting the battery cell to the first transmission component 200.

[0226] Of course, the loading conveyor assembly 101 can also run at the first transmission speed to wait for loading. The first transmission speed is relatively low, and when the battery cell is placed on the loading conveyor assembly 101, the battery cell can be placed smoothly on the loading conveyor assembly 101. Then, the transmission speed of the loading conveyor assembly 101 is increased, so that when the battery cell reaches the starting end of the first transmission assembly 200, the loading conveyor assembly 101 and the first transmission assembly 200 have the same transmission speed, thereby smoothly transmitting the battery cell to the first transmission assembly 200.

[0227] It should be noted that, in the process of increasing the transmission speed of the loading transmission component 101, the loading transmission component 101 can maintain the acceleration state throughout the process, and when the battery cell reaches the starting end of the first transmission component 200, the loading transmission component 101 and the first transmission component 200 have exactly the same transmission speed. During the whole acceleration process, the acceleration of the loading transmission component 101 can also be different, preferably the acceleration gradually increases.

[0228] Of course, in the process of increasing the transmission speed of the loading transmission component 101, the loading transmission component 101 may also include acceleration sections and uniform speed sections that are alternately arranged. For example, if the front section is accelerated and the rear section is uniform, when the battery cell has not reached the starting end of the first transmission component 200, it is accelerated to the same transmission speed as the first transmission component 200, and then the speed is maintained to run at a uniform speed. Alternatively, the front section is uniform and the rear section is accelerated, the battery cell first runs at the first transmission speed, and then accelerates again, when the battery cell reaches the starting end of the first transmission component 200, the loading transmission component 101 and the first transmission component 200 have exactly the same transmission speed. Alternatively, multiple sections of acceleration and multiple sections of uniform speed are alternated, as long as it is ensured that when the battery cell reaches the starting end of the first transmission component 200, the loading transmission component 101 and the first transmission component 200 have exactly the same transmission speed.

[0229] In steps 106 to 108, the feeding transmission component 101 transmits the battery cells to the stacking detection position, that is, the position of the sixth photoelectric sensor 101e. The sixth photoelectric sensor 101e detects the stacking of the battery cells. If there is no stacking, the battery cells are transmitted to the first conveyor belt 201, and when the sixth photoelectric sensor 101e cannot detect the battery cells, the feeding transmission component 101 is paused or the transmission speed of the feeding transmission component 101 is slowed down, waiting for the next feeding. If there is stacking, the feeding transmission component 101 is closed to interrupt the feeding and an alarm is sounded, and the operator takes away the battery cells before continuing the feeding.

[0230] Of course, in steps 103 to 105, when the loading assembly 104 successfully picks up the material and moves to the top of the loading transmission assembly 101, it can also wait until the battery cell on the first transmission assembly 200 reaches the preset position before placing the battery cell on the loading transmission assembly 101. In this way, when the fifth sensor 101d detects the battery cell, the loading transmission assembly 101 is immediately started.

[0231] The transmission step specifically includes:

[0232] Receiving the battery sheet transmitted from the loading transmission component 101;

[0233] Determine whether the transmission speed V2 of the first transmission belt 201 is equal to the transmission speed V3 of the laser sintering device 300;

[0234] If yes, keep the transmission speed V2 of the first transmission belt 201 unchanged;

[0235] If not, the transmission speed of the first transmission belt 201 is increased so that when the battery cell reaches the starting end of the laser sintering device 300 , the first transmission component 200 and the powered roller component 302 have the same transmission speed.

[0236] When the battery cell reaches the starting end of the first conveyor belt 201, the loading conveyor assembly 101 has the same transmission speed as the first conveyor belt 201, so that the battery cell on the loading conveyor belt 101 is smoothly transferred to the first conveyor belt 201. When the sixth photoelectric sensor 101e cannot detect the battery cell, it indicates that the battery cell has been completely transferred from the loading conveyor belt 101 to the first conveyor belt 201. At this time, the operation of the loading conveyor belt 101 can be stopped or slowed down to allow loading.

[0237] When the battery cell is completely located on the first conveyor belt 201, it is determined whether the transmission speed of the first conveyor belt 201 is equal to the transmission speed of the laser sintering device 300. If yes, the transmission speed is maintained to transmit the battery cell to the laser sintering device 300; if not, the first conveyor belt 201 needs to be accelerated to increase the transmission speed of the first conveyor belt 201, so that when the battery cell reaches the starting end of the laser sintering device 300, the first conveyor belt 201 and the power roller assembly 302 have the same transmission speed, so that the battery cell on the first conveyor belt 201 is smoothly transmitted to the laser sintering device 300.

[0238] It should be noted that, in the process of increasing the transmission speed of the first transmission belt 201, the first transmission belt 201 can maintain the acceleration state throughout the process, and when the battery sheet reaches the starting end of the power-on roller assembly 302, the first transmission belt 201 and the power-on roller assembly 302 have exactly the same transmission speed. During the whole acceleration process, the acceleration of the first transmission belt 201 can also be different, preferably the acceleration gradually increases.

[0239] Of course, in the process of increasing the transmission speed of the first transmission belt 201, the first transmission belt 201 may also include an acceleration section and a uniform speed section that are alternately arranged. For example, if the front section is accelerated and the rear section is uniform, the battery cell is accelerated to the same transmission speed as the power-on roller assembly 302 before reaching the starting end of the power-on roller assembly 302, and then the speed is maintained to run uniformly. Alternatively, the front section is uniform and the rear section is accelerated, the battery cell first runs at a uniform speed, and then accelerates again, and when the battery cell reaches the starting end of the power-on roller assembly 302, the first transmission belt 201 and the power-on roller assembly 302 have exactly the same transmission speed. Alternatively, multiple sections of acceleration and multiple sections of uniform speed are alternated, as long as it is ensured that when the battery cell reaches the starting end of the power-on roller assembly 302, the first transmission belt 201 and the power-on roller assembly 302 have exactly the same transmission speed.

[0240] During the transmission of the battery cell via the first conveyor belt 201, the battery cell will pass through the correction area where the correction piece 203 is located. When the seventh photoelectric sensor 202 detects the battery cell, the battery cell just moves between the two correction blocks 203c. At this time, the correction motor 203b is started to drive the correction belt 203a to move, and the movement of the correction belt 203a drives the two correction blocks 203c thereon to move toward each other, that is, move toward the battery cell at the same time. If the battery cell is deviated or tilted, at least part of the correction wheel of one of the correction blocks 203c will first contact the battery cell and push the battery cell to move toward the other correction block 203c until the spacing between the two correction blocks 203c and the width of the battery cell are consistent, and the correction motor 203b stops working to complete the correction of the battery cell.

[0241] When the seventh photoelectric sensor 202 cannot detect the battery cell, the battery cell leaves the correction range of the correction member 203. At this time, the correction motor 203b is started again to drive the correction belt 203a to move, and the movement of the correction belt 203a drives the two correction blocks 203c thereon to move in the opposite direction to restore to the initial state. At this time, the feeding transmission component 101 can also be started for the next feeding.

[0242] It should be noted that, under normal conditions, the transmission speed of the first conveyor belt 201 and the transmission speed of the laser sintering device 300 are always consistent, that is, after the loading and conveying assembly 101 is accelerated once, the battery cell can be accelerated to the same transmission speed as the laser sintering device 300. However, when unexpected situations such as blockage of the equipment occur, it may be necessary to reduce the transmission speed of the first conveyor belt 201 in stages. In this case, the first conveyor belt 201 needs to be accelerated twice to ensure that when the battery cell reaches the connection position of the first conveyor belt 201 and the laser sintering device 300, the transmission speeds of the two are the same.

[0243] The laser sintering step specifically includes:

[0244] The power roller assembly 302 receives the battery sheet transmitted from the first transmission belt 201;

[0245] Turn on the power supply, and apply a reverse voltage to the battery cell located between the two through the power roller assembly 302;

[0246] Turning on the laser assembly 301 to emit laser;

[0247] The battery sheet passes through the radiation area of ​​the laser and generates an induced current.

[0248] The powered roller assembly 302 drives the cell to move, and the laser emitted by the laser assembly 301 radiates the cell, and completes the scanning of the entire cell during the movement of the cell. Under the action of the powered roller assembly 302, the cell is always applied with a reverse voltage during the scanning process, and an induced current is generated when the cell passes through the laser radiation area. When the current flows through the area with high contact resistance, a higher temperature is generated, which plays a role similar to sintering, thereby reducing the contact resistance.

[0249] The laser sintering method further includes a material unloading step to transfer the sintered battery cells and place them in the unloading box 402 .

[0250] The step of blanking specifically comprises:

[0251] Transmitting the laser sintered cell to the second transmission assembly 500;

[0252] The battery sheet is transferred to the unloading device 400 by the second transmission component 500, and unloaded by the unloading device 400;

[0253] The “cutting” includes:

[0254] S1, judging whether the time from the last unloading reaches the second preset time, if not, the unloading component 404 remains stationary; if so, moving the unloading component 404 to the top of the unloading transmission component 401, and jumping to S2;

[0255] S2, determine whether the battery cell has reached the pick-up position, if not, continue to transfer the battery cell; if yes, stop the unloading and conveying component 401, switch the unloading component 404 to the suction state to suck the battery cell, and jump to S3;

[0256] S3. After the second preset time, determine whether the unloading component 404 successfully absorbs the battery cell. If so, move the unloading component 404 along the second track 403 to the top of the unloading box 402, cancel the suction state of the unloading component 404, place the battery cell in the unloading box 402, and increase the number of battery cells in the unloading box 402 by one; if not, cancel the suction state of the unloading component 404, and re-absorb the battery cell.

[0257] The power-on roller assembly 302 transfers the laser-sintered battery cells to the second transfer assembly 500 . The transfer speed of the second transfer assembly 500 is the same as that of the power-on roller assembly 302 , so that the battery cells on the power-on roller assembly 302 are smoothly transferred to the second transfer assembly 500 .

[0258] Then, the battery cells are transferred to the unloading transmission component 401 through the second transmission component 500. Based on the same processing time for each battery cell, when the time from the last unloading reaches the preset time (i.e., the transmission time interval between two adjacent battery cells), the unloading transmission component 401 is started to accelerate to the same transmission speed as the second transmission component 500, and the battery cells on the second transmission component 500 are smoothly transferred to the unloading transmission component 401. At the same time, the unloading component 404 is moved along the second track 403 to the top of the unloading transmission component 401.

[0259] When the unloading transmission component 401 transmits the battery cell to the pick-up position, that is, the pick-up position, the unloading transmission component 401 is closed, and the battery cell is transmitted to the bottom of the unloading component 404 at this time.

[0260] Then switch the unloading suction cup of the unloading component 404 to the suction state to suck the battery cell. After the second preset time, determine whether the unloading suction cup successfully sucks the battery cell. If so, move the unloading component 404 to the top of the unloading box 402, cancel the suction state of the unloading suction cup, place the battery cell in the unloading box 402, and increase the number of battery cells in the unloading box 402 by one; if not, cancel the material taking state of the unloading suction cup and suck the battery cell again.

[0261] Alternatively, the “cutting” includes:

[0262] S1, determine whether the battery cell reaches the pick-up position, if not, continue to transport the battery cell; if yes, stop the unloading transmission component 401, move the unloading component 404 to the top of the unloading transmission component 401, switch the unloading component 404 to the suction state to suck the battery cell, and jump to S2;

[0263] S2. After the second preset time, determine whether the unloading component 404 successfully absorbs the battery cell. If so, move the unloading component 404 along the second track 403 to the top of the unloading box 402, cancel the suction state of the unloading component 404, place the battery cell in the unloading box 402, and increase the number of battery cells in the unloading box 402 by one; if not, cancel the suction state of the unloading component 404, and re-absorb the battery cell.

[0264] The unloading box 402 includes a first unloading box 402a and a second unloading box 402b. Specifically, the battery cells can be placed in a unloading box with fewer cells according to the number of cells in the first unloading box 402a and the second unloading box 402b. When the number of cells in the unloading box 402 reaches a preset value, unloading into the unloading box 402 is stopped, and the operator is reminded to take out the battery cells in the unloading box 402.

[0265] In summary, the present invention performs loading and transmission of battery cells through the loading and transmission component 101 and the first transmission component 200. By controlling the transmission speed of the loading and transmission component 101 and the first transmission component 200, it is possible to effectively avoid material blockage, reduce damage to the battery cells during transmission, and accelerate the sintering processing efficiency of the battery cells.

[0266] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0267] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for laser-assisted sintering of a cell, characterized in that: The steps include: Placing the battery cell on a loading and conveying assembly (101), wherein the loading and conveying assembly (101) conveys the battery cell to a first conveying assembly (200); Transmitting the battery sheet to the laser sintering device (300) through the first transmission component (200); Performing laser sintering on the battery cell by using the laser sintering device (300); Wherein, the transmission speed of the loading transmission component (101) is less than or equal to the transmission speed of the first transmission component (200).

2. The cell laser-assisted sintering method according to claim 1, characterized in that: The laser sintering device (300) comprises a powered roller assembly (302) for driving the battery sheet to pass through the sintering zone, and the transmission speed of the first transmission assembly (200) is less than or equal to the transmission speed of the powered roller assembly (302).

3. The cell laser-assisted sintering method according to claim 2, characterized in that: The transmission speed of the powered roller assembly (302) is kept constant.

4. The laser-assisted sintering method for a cell according to claim 1, characterized in that: Also includes: When the loading and conveying assembly (101) is in a stationary state, the battery sheet is placed on the loading and conveying assembly (101); Starting the loading transmission component (101) and increasing the transmission speed of the loading transmission component (101) so that when the battery cell reaches the starting end of the first transmission component (200), the loading transmission component (101) and the first transmission component (200) have the same transmission speed; Or, when the loading transmission component (101) operates at a first transmission speed, the battery sheet is placed on the loading transmission component (101); The transmission speed of the loading transmission component (101) is increased so that when the battery cell reaches the starting end of the first transmission component (200), the loading transmission component (101) and the first transmission component (200) have the same transmission speed.

5. The method for laser-assisted sintering of a cell according to claim 4, characterized in that: The feeding transmission component (101) comprises an acceleration section and a uniform speed section which are arranged alternately; Alternatively, the loading and conveying assembly (101) is accelerated throughout the entire process.

6. The cell laser-assisted sintering method according to claim 2, characterized in that: Also includes: When the battery cell is transferred from the loading transmission component (101) to the first transmission component (200), it is determined whether the transmission speed of the first transmission component (200) is equal to the transmission speed of the power-on roller component (302); If so, maintaining the transmission speed of the first transmission component (200) unchanged; If not, the transmission speed of the first transmission component (200) is increased so that when the battery cell reaches the starting end of the laser sintering device (300), the first transmission component (200) and the powered roller component (302) have the same transmission speed.

7. The cell laser-assisted sintering method according to claim 6, characterized in that: The first transmission component (200) comprises acceleration sections and uniform speed sections which are arranged alternately; Alternatively, the first transmission component (200) is accelerated throughout the entire process.

8. The cell laser-assisted sintering method according to claim 1, characterized in that: It also includes pausing the loading transmission component (101) or slowing down the transmission speed of the loading transmission component (101) when the battery slices on the loading transmission component (101) are transferred to the first transmission component (200).

9. The cell laser-assisted sintering method according to claim 1, characterized in that: The “placing the battery sheet on the loading and conveying assembly (101)” includes: Placing the battery sheet to be laser-assisted sintered in a loading box (102); Lifting the battery sheet to a material taking position by means of a lifting member (102d); The battery sheet at the material taking position is moved to the material feeding transmission component (101) by the material feeding component (104).

10. The cell laser-assisted sintering method according to claim 9, characterized in that: The “lifting the battery sheet to the material taking position by the lifting member (102d)” includes: Determining whether there are battery cells in the loading box (102); If yes, start the lifting member (102d) to drive the supporting plate (102c) and the battery cells thereon to rise; Detecting whether any battery cell rises to the material taking position by means of a third photoelectric sensor (102h); If yes, close the lifting member (102d) and wait for material to be taken; If not, determining whether the lifting member (102d) has risen to a maximum height; If so, call the police; If not, continue to raise the lifting member (102d); If not, call the police.

11. The method for laser-assisted sintering of a cell according to claim 9, characterized in that: The “moving the battery sheet at the material taking position to the material feeding transmission component (101) by means of the material feeding component (104)” comprises: S1, judging whether the loading component (104) is in a state without battery cells; if not, waiting for the loading component (104) to place the battery cells on the loading transmission component (101) before performing a material picking operation; if so, moving the loading component (104) to the top of the loading box (102), turning on the air knife (102f), switching the loading component (104) to a material suction state, and jumping to S2; S2, after the first preset time, determine whether the loading component (104) has sucked the battery cell; if not, cancel the sucking state of the loading component (104) and suck the battery cell again; if yes, move the loading component (104) to just above the loading transmission component (101), and jump to S3; S3, determining whether the loading and conveying component (101) allows loading; if so, switching the loading and conveying component (104) to a discharge state, and placing the battery cells on the loading and conveying component (101); if not, maintaining the loading and conveying component (104) in a suction state until the loading and conveying component (101) allows loading.

12. The method for laser-assisted sintering of a cell according to claim 4, characterized in that: Before "increasing the transmission speed of the feeding transmission component (101)", it also includes: Determining whether the battery cell on the first transmission component (200) can reach a preset position when the loading transmission component (101) transports the battery cell to the starting end of the first transmission component (200); or determining whether the battery cell on the first transmission component (200) reaches the preset position; If so, the battery cell is transported to the first transport component (200) via the loading transport component (101); If not, the transmission speed of the loading transmission component (101) is slowed down or the loading transmission component (101) is paused.

13. The method for laser-assisted sintering of a cell according to claim 4, characterized in that: The method further includes detecting whether the current solar cell is a single cell by a sixth photoelectric sensor (101e) on the feeding transmission component (101): If yes, the battery cell is transferred to the first transfer component (200); If not, stop transferring the battery slice and sound an alarm.

14. The cell laser-assisted sintering method according to claim 2, characterized in that: Also includes: The battery sheet after the laser sintering process is transmitted to the second transmission component (500) through the powered roller component (302); The battery sheet is transferred to the unloading device (400) through the second transmission component (500), and unloaded through the unloading device (400); The "cutting" includes: S1, judging whether the time since the last unloading has reached the second preset time, if not, the unloading component (404) remains stationary; if so, moving the unloading component (404) to the top of the unloading transmission component (401), and jumping to S2; S2, judging whether the battery cell has reached the pick-up position, if not, continuing to transport the battery cell; if yes, stopping the unloading and transporting component (401), switching the unloading component (404) to the suction state to suck the battery cell, and jumping to S3; S3, after the second preset time, determine whether the unloading component (404) successfully absorbs the battery cell; if so, move the unloading component (404) to the top of the unloading box (402), cancel the material absorption state of the unloading component (404), place the battery cell in the unloading box (402), and increase the number of battery cells in the unloading box (402) by one; if not, cancel the material absorption state of the unloading component (404) and absorb the battery cell again; Or, the "cutting" includes: S1, judging whether the battery cell has reached the pick-up position, if not, continuing to transport the battery cell; if yes, stopping the unloading transmission component (401), moving the unloading component (404) to the top of the unloading transmission component (401), switching the unloading component (404) to the suction state to suck the battery cell, and jumping to S2; S2. After the second preset time, determine whether the unloading component (404) has successfully sucked the battery cell. If so, move the unloading component (404) to the top of the unloading box (402), cancel the sucking state of the unloading component (404), place the battery cell in the unloading box (402), and increase the number of battery cells in the unloading box (402) by one; if not, cancel the sucking state of the unloading component (404) and suck again.

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