CN116772521B

CN116772521B - Lithium battery baking and drying method based on stacked tray clamp

Info

Publication number: CN116772521B
Application number: CN202310964076.5A
Authority: CN
Inventors: 卢建雄; 辛龙; 黄庆; 李文; 李雄泽
Original assignee: Zhongshan Honwin Automation Technology Co ltd
Current assignee: Zhongshan Honwin Automation Technology Co ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2023-12-08
Anticipated expiration: 2043-08-02
Also published as: CN116772521A

Abstract

The invention provides a lithium battery baking and drying method based on a stacking tray clamp, which comprises the following steps: the lithium battery is conveyed by adopting a feeding conveying mechanism, whether the lithium battery needs baking and drying is detected by using a detecting mechanism, the lithium battery is conveyed to a defective product conveying mechanism or a clamp seat by using a feeding manipulator, a stacked tray loading clamp is arranged in the clamp seat, and the lithium battery positioned on the feeding manipulator is tidied by using a clamp picking and placing mechanism and is placed into the tray loading clamp; the transfer device is also provided with a clamp taking and placing mechanism, the clamp taking and placing mechanism can split the dishing clamp into a plurality of sub-clamps, then the sub-clamps of the target are taken, and the sub-clamps provided with the lithium battery are conveyed to the oven by using the transfer device. According to the lithium battery baking and drying method based on the stacked tray clamp, the tray clamp is disassembled by using the clamp taking and placing mechanism, so that the working efficiency is higher, and the adaptability is better.

Description

Lithium battery baking and drying method based on stacked tray clamp

Technical Field

The invention relates to the field of lithium battery production, in particular to a lithium battery baking and drying method based on a stacked tray clamp.

Background

In the existing lithium battery production line, before the lithium battery is injected with liquid, the lithium battery needs to be dried so as to eliminate the moisture in the lithium battery. The existing lithium battery drying lines are generally divided into two types, namely a tunnel furnace type drying line and a contact type vacuum drying line. The common tunnel type drying production line has low efficiency of removing water in unit time due to the limited structure, and finally leads to longer time of the lithium battery in the tunnel, so that the equipment length is long, the occupied area is large, and the energy consumption is high, therefore, the contact type vacuum drying line is mostly adopted in the market at present.

In the existing contact vacuum drying line, a stacked fixture is often used for placing lithium batteries, the stacked fixture needs to be split when baking and drying are performed, for example, patent application of Chinese patent publication No. CN209484993U discloses a lithium battery contact heating vacuum tunnel baking line, baking fixtures for containing lithium batteries are stacked on a fixture bearing material vehicle, and then split work is required, but the existing split work is very complicated, the use is very troublesome, and the work efficiency is low.

Disclosure of Invention

The invention aims to provide a lithium battery baking and drying method based on a stacked tray clamp, which uses a clamp taking and placing mechanism to disassemble the tray clamp, so that the working efficiency is higher, and the adaptability is better.

In order to achieve the above object, the present invention provides the following technical solutions:

the lithium battery baking and drying method based on the stacked tray clamp comprises the following steps:

the lithium battery is conveyed by adopting a feeding conveying mechanism, whether the lithium battery needs baking and drying is detected by using a detecting mechanism, the lithium battery is conveyed to a defective product conveying mechanism or a clamp seat by using a feeding manipulator, a stacked tray loading clamp is arranged in the clamp seat, and the lithium battery positioned on the feeding manipulator is tidied by using a clamp picking and placing mechanism and is placed into the tray loading clamp;

the transfer device is also provided with a clamp taking and placing mechanism, the clamp taking and placing mechanism can split the tray clamp into a plurality of sub clamps, then the target sub clamps are taken, the sub clamps filled with the lithium batteries are conveyed to the oven by using the transfer device, the oven is provided with a first counting unit, the first counting unit is electrically connected with an industrial computer, the first counting unit can count the number of the sub clamps entering the oven, when the number reaches the upper limit, the first counting unit can transmit corresponding electric signals to the industrial computer, and the industrial computer transmits corresponding electric signals to the transfer device, so that the transfer device transmits subsequent lithium batteries to the buffer device;

The buffer device comprises a buffer frame, a second counting unit is arranged on the buffer frame, the second counting unit is used for counting the number of the sub-clamps on the buffer frame, if the number of the sub-clamps on the buffer frame reaches an upper limit, the number of the sub-clamps in the oven also reaches the upper limit, the industrial personal computer drives the transfer device to stop transferring, and if the number of the sub-clamps on the buffer frame reaches the upper limit, the number of the sub-clamps in the oven does not reach the upper limit, the industrial personal computer drives the transfer device to continuously transfer the sub-clamps to the oven;

after baking and drying, the transferring device transfers the sub-clamp in the oven to the blanking device;

and taking out and cooling the lithium battery of the sub-clamp by blanking, and cooling the lithium battery to the specification requirement, thereby completing baking and drying of the lithium battery.

Optionally, the tray clamping device comprises a plurality of sub-clamping devices, and the plurality of sub-clamping devices are stacked in a detachable connection mode to form the tray clamping device.

Optionally, divide anchor clamps to include anchor clamps body, spacer bush and reference column, the downside of anchor clamps body is located to the spacer bush, and the one end and the anchor clamps body coupling of reference column, the other end of spacer column upwards extends and can peg graft to the spacer bush of another minute anchor clamps.

Optionally, the fixture gets and puts the mechanism and includes first getting and puts the base, the second gets and puts the base, tear open the dish subassembly, the fixture gets and puts the piece, base linear drive unit and get and put a linear drive unit, first getting is equipped with on putting the base and is followed the first guide rail that the fore-and-aft direction extends, the second gets and puts the base sliding connection in first guide rail, base linear drive unit locates first getting and puts the base, the drive end of base linear drive unit is connected and can drive the second get and put the base back and forth movement, the second gets and is equipped with the second guide rail that extends along the fore-and-aft direction on putting the base, fixture gets and puts a sliding connection in the second guide rail, get and put a linear drive unit and locate the second get and put the base, get and put a drive end and be connected and can drive the fixture get and put a back and forth movement of piece, tear open the dish subassembly and be used for separating two adjacent split clamps, get and put a linear drive unit and drive the fixture and get and put a piece and move and pull back in the second and get the base.

Optionally, the second is got and is put the base and has first end, tear open the dish subassembly and locate first end, tear open the dish subassembly and include first kicking block, second kicking block, tear open a dish guide rail, first tear open a dish linear drive unit and second and tear open a dish linear drive unit open a dish guide rail and locate along vertical direction first end, first kicking block sliding connection in tear open a dish guide rail, second kicking block sliding connection in tear open a dish guide rail and be located the top of first kicking block, first tear open a dish linear drive unit with the second tear open a dish linear drive unit and all locate the second and get and put the base, first tear open a dish linear drive unit's drive end with first kicking block connection and can drive a first kicking block reciprocate, second tear open a dish linear drive unit's drive end with second kicking block connection and can drive a second kicking block reciprocate, in order to change the second kicking block with first kicking block distance between, first kicking block and second kicking block are located and second and two adjacent kicking block can be changed between the first kicking block and the second.

Optionally, the fixture is got and is put the piece body and the fixture hook including getting, gets to put a body sliding connection in the second guide rail, and the fixture hook is located and is got to put a body, gets to put a linear drive unit and can order about to get to put a body and remove along the second guide rail to drive the fixture hook and remove along the second guide rail, the fixture hook can remove the bottom of dividing the anchor clamps, divides the bottom of anchor clamps to be equipped with corresponding recess, and the fixture hook can be hooked corresponding recess and will divide the anchor clamps to drag into the second and get to put in the base, thereby accomplish the work of tearing open a dish and taking the target and dividing anchor clamps.

Optionally, when the split charging tray clamp is disassembled by using the clamp picking and placing mechanism, the method comprises the following steps:

when the designated sub-clamp is required to be extracted, only the clamp taking and placing mechanism is required to be in butt joint with the tray loading clamp, and the first top block is arranged below the target sub-clamp; after the split clamps are butted, the second ejector block rises to support all the split clamps above the second ejector block to rise together, when the cam follower walks to the limit position in the variable-pitch plate, all the split clamps above the second ejector block are separated from the split clamps where the first ejector block is located, the second ejector block continues to rise, meanwhile, the variable-pitch plate can drive the first ejector block to rise, the first ejector block supports the target split clamps to rise to the designated height, the rising is stopped, at this time, the target split clamps are separated from the split clamps at the lower layer, namely, the upper and lower parts of the target split clamps are separated from the adjacent split clamps, at this time, the clamp hooks move towards the target split clamps, the split clamps are pulled back into the second picking and placing base to carry out the next procedure, and the disc disassembly is completed at this time.

Optionally, the first counting unit is a photoelectric switch, the first counting unit is arranged on the side surface of the oven, the first counting unit can be triggered once every time the oven door is opened, the first triggering represents that the sub-clamp is put in the oven, the second triggering represents that the sub-clamp is taken out, and the lithium battery is baked once for a group of the sub-clamps every two times, so that the counting is performed.

Optionally, the second counting unit is a photoelectric switch, a buffer cavity for placing the sub-clamps is arranged on the buffer frame, the second counting unit is arranged on the side surface of each buffer cavity, the second counting unit can be triggered once when the sub-clamps are placed in each buffer cavity, the first trigger represents that the sub-clamps are placed in each buffer cavity, the second trigger represents that the sub-clamps in each buffer cavity are taken out, and the sub-clamps are taken out for a group of sub-clamps in each buffer cavity, so that the counting is performed.

Optionally, the unloader includes cooling body, cooling body includes the cooling tray, cooling channel and cold air system, the cooling channel includes upper passageway and lower floor's passageway, all be equipped with the conveyer belt in upper passageway and the lower floor's passageway, cold air system and upper passageway intercommunication, the cooling tray is used for placing the lithium cell, the upper passageway is used for cooling the lithium cell, the lower floor's passageway is used for retrieving the cooling tray, the unloading body still includes the unloading frame, unloading manipulator and unloading conveyer belt, the unloading manipulator is located in the unloading frame, the anchor clamps are got and are put the mechanism and take apart the layering of sabot anchor clamps after, the unloading manipulator is placed the lithium cell on the cooling tray, the upper passageway is the cooling station, the lower floor's passageway is the empty disc backward flow, when the cooling tray passes the upper strata, cold air system in the cooling channel cools down the cooling tray, cool down the specification requirement with the lithium cell, then follow cooling channel flows, another unloading manipulator station that flows to the terminal, the unloading manipulator is got the lithium cell from the cooling tray in snatch down to the cooling tray and is got down the lower floor's passageway backward through setting up the manipulator.

Compared with the prior art, the scheme of the invention has the following advantages:

1. the clamp taking and placing mechanism is used for disassembling the split charging tray clamp, so that the working efficiency is higher, and the adaptability is better.

2. The invention adopts the first counting unit and the second counting unit to count the number of the tray fixtures in the oven and the cache rack, can better schedule the transfer device, and has better scheduling effect, high working precision and high working efficiency.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a baking and drying production line for lithium batteries according to an embodiment of the invention;

FIG. 2 is a schematic view of a transfer device;

FIG. 3 is a schematic structural view of a tray clamp;

FIG. 4 is a bottom view of the tray clamp;

FIG. 5 is a schematic view of a clamp pick-and-place mechanism;

FIG. 6 is a schematic diagram showing the state change of the clamp pick-and-place mechanism during operation;

FIG. 7 is a schematic view of the structure of the clamp base;

FIG. 8 is a schematic diagram of the cooperation of the holder and the dishing clamp;

FIG. 9 is an enlarged schematic view of FIG. 8 at A;

fig. 10 is a schematic diagram showing a state change when the clamp seat works.

Reference numerals: 1. a feeding device; 11. a feeding frame; 12. a feeding and conveying mechanism; 13. a defective product conveying mechanism; 14. a feeding manipulator; 2. a blanking device; 21. a cooling channel; 22. a cold air system; 23. a blanking frame; 24. a blanking conveyor belt; 3. a drying device; 31. an oven; 32. a vacuum pipe; 4. a buffer device; 5. a transfer device; 51. a transfer rail; 52. a transfer pulley; 53. a transfer support wheel; 54. a first mobile chassis; 55. a second moving frame; 56. a rotating electric machine; 57. rotating the platform; 6. a dishing clamp; 61. dividing the clamp; 611. a clamp body; 612. a positioning sleeve; 613. positioning columns; 614. a support block; 615. a support sheet; 616. a probe linker; 7. a clamp taking and placing mechanism; 71. a first taking and placing base; 72. a second taking and placing base; 73. the clamp takes and puts the piece; 731. a pick-and-place part body; 732. a clamp hook; 74. a disc dismounting assembly; 741. a first top block; 742. a second top block; 743. disassembling the disc guide rail; 744. a variable-pitch plate; 745. a cam follower; 746. a slot-shaped hole; 8. a clamp seat; 81. a clamp base; 82. a side plate; 83. a bottom plate; 801. a first linear driving unit; 802. a second linear driving unit; 803. a third linear driving unit; 804. a first support plate; 805. a second support plate; 806. a third support plate; 807. and supporting the roller.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

The invention provides a lithium battery baking and drying method based on a stacked tray clamp, which is mainly applied to baking and drying of lithium batteries. The existing lithium battery drying lines are generally divided into two types, namely a tunnel furnace type drying line and a contact type vacuum drying line, and the invention is based on the contact type vacuum drying line.

The invention discloses a lithium battery baking and drying method based on a stacking tray clamp, which comprises the following steps of:

s1, conveying lithium batteries by adopting a feeding conveying mechanism 12, detecting whether the lithium batteries need baking and drying by using a detecting mechanism, conveying the lithium batteries to a defective product conveying mechanism 13 or a clamp seat 8 by using a feeding manipulator 14, arranging stacked tray clamps 6 in the clamp seat 8, arranging the lithium batteries positioned on the feeding manipulator 14 by using a clamp picking and placing mechanism 7, and placing the lithium batteries into the tray clamps 6;

S2, a clamp taking and placing mechanism 7 is also arranged on the transfer device 5, the clamp taking and placing mechanism 7 can split the tray clamp 6 into a plurality of sub-clamps 61, then the target sub-clamps 61 are taken, the sub-clamps 61 filled with lithium batteries are conveyed to the oven 31 by using the transfer device 5, a first counting unit is arranged on the oven 31 and is electrically connected with an industrial computer, the first counting unit can count the number of the sub-clamps 61 entering the oven 31, when the number reaches the upper limit, the first counting unit can transmit corresponding electric signals to the industrial computer, and the industrial computer transmits corresponding electric signals to the transfer device 5, so that the transfer device 5 transmits subsequent lithium batteries to the cache device 4;

s3, the buffer device 4 comprises a buffer frame, a second counting unit is arranged on the buffer frame, the second counting unit is used for counting the number of the sub-clamps 61 on the buffer frame, if the number of the sub-clamps 61 on the buffer frame reaches an upper limit and the number of the sub-clamps 61 in the oven 31 also reaches an upper limit, the industrial personal computer drives the transfer device 5 to stop transferring, if the number of the sub-clamps 61 on the buffer frame reaches the upper limit and the number of the sub-clamps 61 in the oven 31 does not reach the upper limit, the industrial personal computer drives the transfer device 5 to continuously transfer the sub-clamps 61 to the oven 31;

S4, after baking and drying, the transferring device 5 transfers the sub-clamp 61 in the oven 31 to the blanking device 2;

s5, discharging, taking out and cooling the lithium battery of the sub-clamp 61, and cooling the lithium battery to the specification requirement, so that baking and drying of the lithium battery are completed.

In this embodiment, it will be appreciated that the order between S1-S5 may be changed according to the actual situation, and this embodiment only provides a more preferred solution.

The lithium battery baking and drying method based on the stacked tray clamp is mainly based on a lithium battery baking and drying production line, therefore, in the embodiment, the lithium battery baking and drying production line is described, and as shown in fig. 1 to 7, the lithium battery baking and drying production line comprises a feeding device 1, a discharging device 2, a drying device 3, a buffer device 4, a transfer device 5 and an industrial personal computer, wherein the feeding device 1, the drying device 3 and the discharging device 2 are arranged at intervals along the left and right directions to form a production line, and the industrial personal computer is respectively and electrically connected with the feeding device 1, the discharging device 2, the drying device 3, the buffer device 4 and the transfer device 5, and the industrial personal computer is used for controlling each device, so that the degree of automation is higher, and the accuracy is higher.

In some embodiments, the feeding device 1 comprises a feeding rack 11, a feeding conveying mechanism 12, a defective product conveying mechanism 13, a detecting mechanism, a feeding manipulator 14, a clamp picking and placing mechanism 7 and a clamp seat 8, wherein the feeding manipulator 14 and the detecting mechanism are both arranged on the feeding rack 11, the feeding conveying mechanism 12 and the defective product conveying mechanism 13 are both arranged below the feeding rack 11, the feeding conveying mechanism 12 is used for conveying lithium batteries to the lower part of the feeding rack 11, the detecting mechanism is used for detecting whether the lithium batteries need to be baked and dried, the feeding manipulator 14 is used for conveying the lithium batteries to the defective product conveying mechanism 13 or the clamp seat 8, a tray clamp 6 is arranged in the clamp seat 8, and the clamp picking and placing mechanism 7 is used for sorting the lithium batteries on the feeding manipulator 14 and placing the lithium batteries into the tray clamp 6.

Further, the feeding conveying mechanism 12 and the defective product conveying mechanism 13 are both conveying belts, the feeding conveying mechanism 12 and the defective product conveying mechanism 13 are both arranged on the left side of the feeding rack 11, the defective product conveying mechanism 13 is located on the front side of the feeding conveying mechanism 12, the feeding conveying mechanism 12 conveys lithium batteries from left to right, the defective product conveying mechanism 13 conveys lithium batteries from right to left, conveying belts are adopted for conveying, and the conveying process is more stable.

Specifically, the detection mechanism is a code scanning machine, each lithium battery is provided with a corresponding code, the code scanning machine can identify the information of the lithium battery by scanning the codes on the lithium battery, the detection mechanism can identify whether the lithium battery on the feeding conveying mechanism 12 is a lithium battery which needs or is suitable for baking and drying, if not, the detection mechanism can transmit corresponding electric signals to the industrial personal computer, the industrial personal computer can transmit the corresponding electric signals to the feeding mechanical hand 14, the feeding mechanical hand 14 can place the lithium battery on the defective product conveying mechanism 13, the defective product conveying mechanism 13 conveys the lithium battery to a corresponding collecting box, if the lithium battery needs to be baked and dried, the detection mechanism can transmit the corresponding electric signals to the industrial personal computer, the industrial personal computer can transmit the corresponding electric signals to the feeding mechanical hand 14, the feeding mechanical hand 14 can place the lithium battery in the tray clamp 6, the whole feeding process is high in intelligentization degree, and the working accuracy is high.

Further, drying device 3 includes oven 31, vacuum pipe 32 and vacuum pump, oven 31 includes furnace body and furnace gate, be equipped with the furnace chamber that is used for placing sabot anchor clamps 6 in the furnace body, be equipped with heating plate on the sabot anchor clamps 6, the furnace chamber passes through vacuum pipe 32 and is connected with the vacuum pump, when toasting, put into furnace chamber with sabot anchor clamps 6, close the furnace gate, the vacuum pump work, carry out the evacuation to the furnace chamber, the heating plate heating on sabot anchor clamps 6 simultaneously, will place the lithium cell in sabot anchor clamps 6 and carry out quick drying, after the stoving is accomplished, the furnace gate is opened, then take out sabot anchor clamps 6 again.

Still further, be equipped with first count unit on the oven 31, first count unit is connected with industrial computer electricity, and first count unit can count the quantity of the sabot anchor clamps 6 that get into in the oven 31, and when the quantity reaches the upper limit, first count unit then can transmit corresponding signal of telecommunication to the industrial computer, and the industrial computer transmits corresponding signal of telecommunication to transfer device 5, makes transfer device 5 convey the follow-up lithium cell to buffer unit 4 in, and whole process intelligent degree is higher, and the work precision is higher.

In some embodiments, the first counting unit may be a photoelectric switch, and the first counting unit may be disposed on a side surface of the oven 31, and can be triggered once when the oven door is opened once, the first triggering indicates that the tray clamping device 6 is placed in the oven, the second triggering indicates that the tray clamping device 6 is taken out, and the lithium battery is baked once for a group of two times, so that the counting is performed in this way, the accuracy is higher, the state inside each oven 31 can be mastered more accurately, the transfer device 5 is convenient to be moved subsequently, and the whole linkage fit effectively improves the working efficiency of the whole production line.

Further, the transfer device 5 includes a transfer rail 51, a transfer driving assembly, a first moving frame 54, a second moving frame 55, a rotating assembly and a clamp picking and placing mechanism 7, the transfer rail 51 extends along a left-right direction, the first moving frame 54 is arranged on the transfer rail 51 and can move left and right along the transfer rail 51, the rotating assembly includes a rotating motor 56 and a rotating platform 57, the rotating motor 56 is arranged on the first moving frame 54, a driving end of the rotating motor 56 is connected with the rotating platform 57 and can drive the rotating platform 57 to rotate around an axis extending up and down, the second moving frame 55 is arranged on the rotating platform 57, the clamp picking and placing mechanism 7 is arranged on the second moving frame 55, and the clamp picking and placing mechanism 7 is used for drawing the tray clamp 6 out of the clamp seat 8 or the furnace chamber.

In some embodiments, the second moving frame 55 is further provided with an air cylinder, the driving end of the air cylinder is connected with the clamp picking and placing mechanism 7, so that the clamp picking and placing mechanism 7 can be driven to move up and down to adapt to ovens 31 with different heights, some ovens 31 are provided with multiple layers, and the tray clamping device 6 in ovens 31 with different heights can be picked and placed by driving the clamp picking and placing mechanism 7 to move up and down, so that the adaptability is better, and the use is more convenient.

In some embodiments, the second moving frame 55 is provided with a plurality of clamp picking and placing mechanisms 7, which can adapt to ovens 31 with different heights, and for ovens 31 with multiple layers, the tray clamping devices 6 in ovens 31 with different heights can be picked and placed by driving the clamp picking and placing mechanisms 7 to move up and down, so that the adaptability is better, and the use is more convenient.

Specifically, transport drive assembly includes transporting motor, transport pulley 52 and transport supporting wheel 53, the first frame 54 that removes is located to the transport motor, transport pulley 52 rotation connects in the bottom of first frame 54 that removes, transport pulley 52 sliding connection is in transporting track 51, transport pulley 52 is connected and can drive transport pulley 52 rotation to transport pulley 52, transport pulley 52 can rotate around the axis that a front and back extends, in order to drive first frame 54 and remove about transporting track 51, both sides of transporting track 51 all are equipped with the open-ended supporting groove towards both sides, both sides all are equipped with the supporting groove around transporting track 51 promptly, transport supporting wheel 53 rotation is connected in the bottom of first frame 54, transport supporting wheel 53's axis of rotation and transport pulley 52 rotation axis are perpendicular, transport supporting wheel 53 rotation around an axis that extends from top to bottom promptly, transport supporting wheel 53 sliding connection is in the supporting groove, more specifically, all sliding connection has transport supporting wheel 53 on the supporting groove of both sides, transport supporting wheel 53 can be with transport track 51 centre, prevent that first frame 54 from producing the rocking in the process of removing.

It will be appreciated that the torsion is generated during the rotation of the second moving frame 55 by the rotating assembly, and thus, the torsion can be better resisted by providing the transfer supporting wheels 53 on the front and rear sides of the transfer rail 51, so that the second moving frame 55 rotates more stably.

Further, the number of the transferring support wheels 53 is four, two of which are located at the front side of the transferring rail 51, and the other two of which are located at the rear side of the transferring rail 51, it can be understood that two of which are located at the left side of the first moving frame 54, and the other two of which are located at the right side of the first moving frame 54, so that the effect of the support can be further improved.

Further, the ovens 31 are provided with a plurality of ovens 31, the ovens 31 are arranged at intervals along the extending direction of the transfer rail 51, and the ovens 31 are respectively arranged at two sides of the transfer rail 51 by taking the transfer rail 51 as a symmetry axis.

In transfer device 5, adopt rotating assembly to order about the second and remove frame 55 rotation to drive anchor clamps and get and put mechanism 7 rotation, conveniently get anchor clamps 6 of putting in the mechanism 7 with anchor clamps and convey to the oven 31 of transporting track 51 both sides in, it is more convenient to use, work efficiency is high, does not need to set up annular track in addition and just can realize multi-direction getting and put, has saved the occupation of land space of whole production line effectively, and space utilization is higher.

The discharging device 2 comprises a clamp taking and placing mechanism 7 and a cooling mechanism, wherein the clamp taking and placing mechanism 7 is used for disassembling the lithium battery in the tray clamp 6, and the cooling mechanism is used for cooling the baked lithium battery to avoid the lithium battery from being in a high-temperature state for a long time.

The buffer device 4 comprises a buffer frame, the buffer frame and the feeding device 1 are respectively arranged on two opposite sides of the transfer track 51, a plurality of buffer cavities for placing the tray clamping devices 6 are arranged on the buffer frame, and a second counting unit is arranged on the buffer frame and is electrically connected with the industrial personal computer.

Specifically, the first counting unit can count the number of the tray holders 6 entering the oven 31, when the number reaches the upper limit, the first counting unit transmits the corresponding electric signals to the industrial personal computer, the industrial personal computer transmits the corresponding electric signals to the transfer device 5, the transfer device 5 transmits the subsequent lithium batteries to the buffer device 4, the second counting unit is used for counting the number of the tray holders 6 on the buffer frame, if the number of the tray holders 6 on the buffer frame reaches the upper limit, the number of the tray holders 6 in the oven 31 also reaches the upper limit, the industrial personal computer drives the transfer device 5 to stop transferring, and if the number of the tray holders 6 on the buffer frame does not reach the upper limit, the industrial personal computer drives the transfer device 5 to continuously transmit the tray holders 6 to the oven 31, the intelligent degree of the whole process is higher, and the working accuracy is higher.

Likewise, in some embodiments, the second counting unit may be a photoelectric switch, and the second counting unit may be disposed on a side surface of each buffer cavity, and the second counting unit can be triggered once when the tray clamping device 6 is put into the buffer cavity, the first trigger indicates that the tray clamping device 6 has been put into the buffer cavity, the second trigger indicates that the tray clamping device 6 has been taken out, and the second trigger indicates that the tray clamping device 6 has been taken out of the buffer cavity.

The first counting unit and the second counting unit are adopted to count the number of the tray fixtures 6 in the oven 31 and the cache rack, a linkage fit relationship is formed between the first counting unit and the second counting unit, the transfer device 5 can be better scheduled, the scheduling effect is better, the working precision is high, and the working efficiency is high.

In some embodiments, the tray clamp 6 includes a plurality of sub-clamps 61, and the plurality of sub-clamps 61 are stacked by detachable connection to form the tray clamp 6.

Specifically, the sub-clamp 61 includes a clamp body 611, a positioning sleeve 612 and a positioning post 613, the positioning sleeve 612 is disposed on the lower side of the clamp body 611, one end of the positioning post 613 is connected with the clamp body 611, and the other end of the positioning post 613 extends upwards and can be inserted into the positioning sleeve 612 of another sub-clamp 61.

In some embodiments, a receiving cavity for placing a lithium battery is provided in the clamp body 611, and a plurality of separators are further provided in the receiving cavity, and the lithium battery is placed between two adjacent separators.

In some embodiments, four positioning posts 613 are disposed on the upper side of the single clamp body 611, four positioning sleeves 612 are disposed on the lower side of the single clamp body 611, the four positioning posts 613 and the four positioning sleeves 612 are respectively distributed at four corners of the clamp body 611, two positioning sleeves 612 on one diagonal are provided with circular positioning holes matched with the positioning posts 613, and two positioning sleeves 612 on the other diagonal are provided with oval positioning holes slightly larger than the outer diameter of the positioning posts 613, which can be understood that the requirement of accuracy is properly reduced, so that one sub-clamp 61 can be better and faster lapped on the other sub-clamp 61.

In some embodiments, the clamp picking and placing mechanism 7 includes a first picking and placing base 71, a second picking and placing base 72, a disc disassembling component 74, a clamp picking and placing piece 73, a base linear driving unit and a picking and placing piece linear driving unit, the first picking and placing base 71 is provided with a first guide rail extending along the front-back direction, the second picking and placing base 72 is slidably connected to the first guide rail, the base linear driving unit is arranged on the first picking and placing base 71, the driving end of the base linear driving unit is connected with the second picking and placing base 72 and can drive the second picking and placing base 72 to move back and forth, the second picking and placing base 72 is provided with a second guide rail extending along the front-back direction, the clamp picking and placing piece 73 is slidably connected to the second guide rail, the pickup and placing piece linear driving unit is arranged on the second picking and placing base 72, the driving end of the pickup and placing piece linear driving unit is connected with the clamp picking and placing piece 73 and can drive the clamp picking and placing piece 73 to move back and forth, the disc disassembling component 74 is provided with the end of the second picking and placing base 72, the disc disassembling component 74 is used for separating two adjacent sub clamps 61, and the disc disassembling component 74 is separated, and the clamp taking and placing component 61 is separated, the clamp taking and placing component 61 is more convenient to move in the second picking and placing piece.

In some embodiments, the second picking and placing base 72 has a first end, the tray removing assembly 74 is disposed at the first end, the tray removing assembly 74 includes a first top block 741, a second top block 742, a tray removing guide rail 743, a first tray removing linear driving unit and a second tray removing linear driving unit, the tray removing guide rail 743 is disposed at the first end along a vertical direction, the first top block 741 is slidably connected to the tray removing guide rail 743, the second top block 742 is slidably connected to the tray removing guide rail 743 and is located above the first top block 741, the first tray removing linear driving unit and the second tray removing linear driving unit are both disposed at the second picking and placing base 72, the driving end of the first tray removing linear driving unit is connected to the first top block 741 and can drive the first top block 741 to move up and down, the driving end of the second tray removing linear driving unit is connected to the second top block 742 and can drive the second top block 742 to move up and down so as to change the distance between the second top block 742 and the first top block 741, the picking and placing member 73 is located between the first top block 741 and the second top block 742, the distance between the first top block and the second top block 741 can be changed, and the picking and placing member is more convenient to pick and place the base 61 is located between the two adjacent to the first top block and the second top block.

In some embodiments, one end of the first top block 741 is connected to the end of the second picking and placing base 72, the other end of the first top block 741 extends towards a side far away from the second picking and placing base 72 and can be inserted into the bottom of the sub-clamp 61, similarly, the second top block 742 is similar to the first top block 741 in structure, one end of the second top block 742 is connected to the end of the second picking and placing base 72, the other end of the second top block 742 extends towards a side far away from the second picking and placing base 72 and can be inserted into the bottom of the sub-clamp 61, the second disc removing linear driving unit drives the second top block 742 to move upwards, the second top block 742 can drive the sub-clamp 61 located on the upper side to move upwards, so that two adjacent sub-clamps 61 are separated, and the picking and placing member linear driving unit drives the clamp picking and placing member 73 to move to pull the located sub-clamp 61 back into the second picking and placing base 72.

In some embodiments, the first disc removing linear driving unit and the second disc removing linear driving unit are hydraulic cylinders, so that the moving distance of the first top block 741 and the second top block 742 can be better controlled. It is understood that the first disc removing linear driving unit and the second disc removing linear driving unit may be components having a linear driving function, such as a cylinder or a linear motor.

In some embodiments, two disc-dismantling linear driving units are not required, only one disc-dismantling linear driving unit is required to drive the second top block 742 to move upwards, the disc-dismantling assembly 74 further comprises a distance-changing plate 744 and a cam follower 745, the distance-changing plate 744 is vertically arranged, the cam follower 745 is arranged on the first top block 741, the upper end of the distance-changing plate 744 is fixedly connected to the second top block 742, a groove-shaped hole 746 is formed in the lower end of the distance-changing plate 744 and is sleeved on the cam follower 745, the cam follower 745 can move up and down relatively in the groove-shaped hole 746, and in the process of moving the distance-changing plate 744 upwards, when the cam follower 745 moves up relatively to the lower end of the groove-shaped hole 746, the second top block 742 moves up to drive the first top block 741 to move upwards, so that the follow-up effect is achieved, namely, after the second top block 742 separates the sub-clamp 61 of the upper layer from the sub-clamp 61 of the middle layer, the sub-clamp 61 can be driven to separate from the sub-clamp 61 of the lower layer, and one lifting action can achieve higher work efficiency.

In some embodiments, the clamp picking and placing member 73 includes a picking and placing member body 731 and a clamp hook 732, the picking and placing member body 731 is slidably connected to the second guide rail, the clamp hook 732 is disposed on the picking and placing member body 731, and the linear driving unit of the picking and placing member can drive the picking and placing member body 731 to move along the second guide rail so as to drive the clamp hook 732 to move along the second guide rail, the clamp hook 732 can move to the bottom of the sub-clamp 61, a corresponding groove is disposed at the bottom of the sub-clamp 61, and the clamp hook 732 can hook the corresponding groove and drag the sub-clamp 61 into the second picking and placing base 72, thereby completing the tray disassembling operation and the operation of picking and placing the target sub-clamp 61.

In some embodiments, the second pick-and-place base 72 is provided with corresponding supporting pulleys to support the sub-clamps 61, so that the sub-clamps 61 can enter conveniently and simultaneously have good supporting effect.

As shown in fig. 6, which is a state change diagram of disc removal, when a designated sub-jig 61 needs to be extracted, only the jig pick-and-place mechanism 7 and the disc loading jig 6 need to be in butt joint, and the first top block 741 is placed below the target sub-jig 61, namely, in a state a; after the sub-jigs 61 are abutted, the second jack 742 is lifted up to hold all sub-jigs 61 above the second jack 742 together, when the cam follower 745 moves to the limit position in the distance changing plate 744, namely, the state b, at this time, all sub-jigs 61 above the second jack 742 are separated from the sub-jigs 61 where the first jack 741 is located, the second jack 742 continues to lift up, at the same time, the distance changing plate 744 drives the first jack 741 to lift up, the first jack 741 holds the target sub-jigs 61 to lift up to the designated height, and the lifting is stopped, as in the state c, at this time, the target sub-jigs 61 are separated from the sub-jigs 61 on the lower layer, namely, the target sub-jigs 61 are separated from the adjacent sub-jigs 61, at this time, the jig hooks 732 move toward the target sub-jigs 61, the sub-jigs 61 are pulled back into the second picking and placing base 72, and the next process is performed, at this time, the disc detachment is completed.

In some embodiments, the fixture seat 8 includes a fixture base 81 and side plates 82, the side plates 82 are provided with two, the two side plates 82 are respectively provided at two sides of the fixture base 81, the two side plates 82 are provided with a plurality of rollers, the rollers are arranged at intervals along the horizontal direction, the sub-fixture 61 can be set up on the rollers, and the sub-fixture 61 can be conveniently pulled out by the fixture picking and placing mechanism 7 and can also have a good supporting effect.

In some embodiments, the clamp seat 8 further includes a clamp linear driving unit and a bottom plate 83, the bottom plate 83 is located between the two side plates 82, the clamp linear driving unit is disposed on the clamp base 81, the driving end of the clamp linear driving unit is connected with the bottom plate 83 and can drive the bottom plate 83 to move up and down, and the upper surface of the bottom plate 83 is used for placing the tray clamp 6.

In some embodiments, a sensor is provided within the holder base 8 for sensing the palletizing jig 6.

In some embodiments, the clamp linear drive unit is a cylinder. It is understood that the clamp linear driving unit may be a component having a linear driving function, such as a hydraulic cylinder or a linear motor.

In one embodiment, referring to fig. 8 to 10, the fixture seat 8 further includes a first linear driving unit 801, a second linear driving unit 802, a third linear driving unit 803, a first supporting plate 804, a second supporting plate 805, a third supporting plate 806 and supporting rollers, where the first linear driving unit 801 is disposed on the side plate 82, the driving end of the first linear driving unit 801 is connected with the first supporting plate 804 and can drive the first supporting plate 804 to move up and down, the second linear driving unit 802 is disposed on the first supporting plate 804, the driving end of the second linear driving unit 802 is connected with the second supporting plate 805 and can drive the second supporting plate 805 to approach or separate from the fixture picking and placing mechanism 7, the third linear driving unit 803 is disposed on the second supporting plate 803, the driving end of the third linear driving unit is connected with the third supporting plate 806 and can drive the third supporting plate 806 to move up and down, and supporting rollers are disposed on the upper surface of the second supporting plate 805 and the upper surface of the third supporting plate 806. 807

It can be appreciated that the first linear driving unit 801 may drive the first support plate 804 to move up and down, so as to drive the second linear driving unit 802, the third linear driving unit 803, the first support plate 804, the second support plate 805, the third support plate 806 and the support roller to move up and down, the second linear driving unit 802 may drive the second support plate 805 to be close to or far from the clamp picking and placing mechanism 7, so as to drive the third linear driving unit 803, the third support plate 806 and the support roller to be close to or far from the clamp picking and placing mechanism 7, and the third linear driving unit 803 drives the third support plate 806 to move up and down, so as to drive the support roller on the third support plate 806 to move up and down.

Specifically, the supporting roller on the second supporting plate 805 and the supporting roller on the third supporting plate 806 are used for supporting two adjacent sub-jigs 61, the first linear driving unit 801 and the second linear driving unit 802 are mainly used for changing the position of the whole tray-loading jig 6, the third linear driving unit 803 can drive the third supporting plate 806 to move up and down, thereby driving the supporting roller on the third supporting plate 806 to move up and down, and further driving the sub-jigs 61 on the upper side to move up, at this time, the sub-jigs 61 on the lower side are stationary, so that the two adjacent sub-jigs 61 can be detached to separate them, thereby completing tray detachment, the detached sub-jigs 61 can be removed by using the above-mentioned jig-taking-and-putting mechanism 7, can be removed by using a common manipulator, and is very convenient to use, and the tray detachment efficiency is high.

More specifically, the first linear driving unit 801, the second linear driving unit 802, and the third linear driving unit 803 are linear motor devices, and the driving effect is better.

In one embodiment, the sub-clamp 61 further comprises a supporting block 614 and supporting pieces 615, the supporting blocks 614 are arranged on two sides of the clamp body 611, the supporting blocks 614 are fixedly connected with the clamp body 611, such as welding, the supporting pieces 615 are arranged on the supporting blocks 614, one ends of the supporting pieces 615 are connected with the supporting blocks 614, the other ends of the supporting pieces 615 extend downwards and are erected on the outer wall of the clamp body 611 adjacent to the lower side, and through the design, shaking between two adjacent sub-clamps 61 can be reduced, and the whole disc loading clamp 6 is stable and safe in moving.

Specifically, the supporting plate 615 is in a Z-shaped structure, the middle part of the supporting plate 615 is connected to the lower side surface of the supporting block 614, the upper end of the supporting plate 615 is connected to the outer side surface of the supporting block 614, the lower end of the supporting plate 615 is arranged on the outer wall of the clamp body 611 adjacent to the lower side, and through the design, the stability of the supporting plate 615 is better.

More specifically, the supporting piece 615 is made of sheet metal, and the structure is more stable.

In one embodiment, the fixture body 611 is further provided with a probe connector 616, the probe connector 616 is located at the rear side of the fixture body 611, i.e. the side far away from the fixture pick-and-place mechanism 7, and the probe for detection can move from the rear side of the fixture body 611 towards the fixture body 611 and be plugged into the probe connector 616, so that the use is more convenient.

In one embodiment, the rear side plate 82 of the clamp seat 8 is further provided with a drag chain for hiding and protecting the wiring, so that the protection effect is better.

In some embodiments, the cooling mechanism comprises a cooling tray, a cooling channel 21 and a cold air system 22, the cooling channel 21 comprises an upper channel and a lower channel, the upper channel and the lower channel are internally provided with conveyor belts, the cold air system 22 is communicated with the upper channel, the cooling tray is used for placing lithium batteries, the upper channel is used for cooling the lithium batteries, the lower channel is used for recycling the cooling tray, in particular, the blanking mechanism further comprises a blanking rack 23, a blanking manipulator and a blanking conveyor belt 24, the blanking manipulator is arranged on the blanking rack 23, after the clamp taking and placing mechanism 7 is used for separating the tray clamp 6 in layers, the unloading manipulator places the lithium cell on the cooling tray, and the upper channel is the cooling station, and the lower floor passageway is empty dish backward flow, and when the cooling tray passed through the upper strata, cold wind system 22 in the cooling channel 21 cooled down the cooling tray, cooled down the specification requirement with the lithium cell, then follow cooling channel 21 outflow, flowed to terminal another unloading manipulator station, and the unloading manipulator snatched the lithium cell from the cooling tray and put into unloading conveyer belt 24, presss from both sides the cooling tray to lower floor passageway backward flow through setting up tray manipulator.

The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A lithium battery baking and drying method based on a stacking tray clamp is characterized by comprising the following steps:

the lithium battery is conveyed by adopting a feeding conveying mechanism (12), whether the lithium battery needs baking and drying or not is detected by using a detecting mechanism, the lithium battery is conveyed to a defective product conveying mechanism (13) or a clamp seat (8) by using a feeding mechanical arm (14), a stacked tray loading clamp (6) is arranged in the clamp seat (8), and the lithium battery positioned on the feeding mechanical arm (14) is tidied by using a clamp picking and placing mechanism (7) and is placed into the tray loading clamp (6);

the transfer device (5) is also provided with a clamp taking and placing mechanism (7), the clamp taking and placing mechanism (7) can split the tray clamp (6) into a plurality of sub-clamps (61), then the sub-clamps (61) with lithium batteries are taken, the sub-clamps (61) with the lithium batteries are conveyed to the oven (31) by using the transfer device (5), the oven (31) is provided with a first counting unit, the first counting unit is electrically connected with an industrial computer, the first counting unit can count the number of the sub-clamps (61) entering the oven (31), when the number reaches the upper limit, the first counting unit can transmit corresponding electric signals to the industrial computer, and the industrial computer transmits corresponding electric signals to the transfer device (5), so that the transfer device (5) transmits subsequent lithium batteries to the cache device (4);

The buffer device (4) comprises a buffer frame, a second counting unit is arranged on the buffer frame and is used for counting the number of the sub-clamps (61) on the buffer frame, if the number of the sub-clamps (61) on the buffer frame reaches the upper limit, and the number of the sub-clamps (61) in the oven (31) also reaches the upper limit, the industrial personal computer drives the transfer device (5) to stop transferring, and if the number of the sub-clamps (61) on the buffer frame reaches the upper limit, and the number of the sub-clamps (61) in the oven (31) does not reach the upper limit, the industrial personal computer drives the transfer device (5) to continuously transfer the sub-clamps (61) to the oven (31);

after baking and drying, the transferring device (5) transfers the sub-clamp (61) in the oven (31) to the blanking device (2);

the blanking device (2) takes out and cools the lithium battery of the sub-clamp (61), and cools the lithium battery to the specification requirement, so that baking and drying of the lithium battery are completed;

the tray clamp (6) comprises a plurality of sub clamps (61), and the sub clamps (61) are stacked in a detachable connection mode to form the tray clamp (6);

the sub-clamp (61) comprises a clamp body (611), a positioning sleeve (612) and a positioning column (613), wherein the positioning sleeve (612) is arranged on the lower side of the clamp body (611), one end of the positioning column (613) is connected with the clamp body (611), and the other end of the positioning column (613) extends upwards and can be inserted into the positioning sleeve (612) of the other sub-clamp (61);

The clamp taking and placing mechanism (7) comprises a first taking and placing base (71), a second taking and placing base (72), a disc detaching assembly (74), a clamp taking and placing piece (73), a base linear driving unit and a taking and placing piece linear driving unit, wherein a first guide rail extending along the front-back direction is arranged on the first taking and placing base (71), the second taking and placing base (72) is slidably connected to the first guide rail, the base linear driving unit is arranged on the first taking and placing base (71), the driving end of the base linear driving unit is connected with the second taking and placing base (72) and can drive the second taking and placing base (72) to move back and forth, a second guide rail extending along the front-back direction is arranged on the second taking and placing base (72), the clamp taking and placing piece (73) is slidably connected to the second guide rail, the taking and placing piece linear driving unit is arranged on the second taking and placing base (72), the disc detaching assembly (74) is arranged at the end of the second taking and placing base (72), the disc assembly (74) is used for separating two adjacent clamps (61) from each other, and the two clamp taking and placing pieces (61) are separated from each other, and the clamp taking and placing pieces (61) are separated from each other and taken and placed in the linear taking and placed base (72);

The second picking and placing base (72) is provided with a first end, the disc removing assembly (74) is arranged at the first end, the disc removing assembly (74) comprises a first top block (741), a second top block (742), a disc removing guide rail (743), a disc removing linear driving unit, a distance changing plate (744) and a cam follower (745), the disc removing guide rail (743) is arranged at the first end along the vertical direction, the first top block (741) is connected with the disc removing guide rail (743) in a sliding manner, the second top block (742) is connected with the disc removing guide rail (743) and is positioned above the first top block (741), the disc removing linear driving unit is arranged at the second picking and placing base (72), the driving end of the disc removing linear driving unit is connected with the second top block (742) and can drive the second top block (742) to move up and down so as to change the distance between the second top block (742) and the first top block (741), the cam follower (745) is vertically arranged, the cam follower (745) is arranged at the first top block (741), the upper end of the distance changing plate (744) is connected with the second top block (742) and is arranged in the vertical direction, the inner position of the cam follower (745) is arranged between the top block (745) and the second top block (742) and the upper end of the disc (743), by changing the distance between the second top block (742) and the first top block (741), the adjacent two sub-jigs (61) can be disassembled;

The clamp taking and placing piece (73) comprises a taking and placing piece body (731) and a clamp hook (732), the taking and placing piece body (731) is connected to the second guide rail in a sliding mode, the clamp hook (732) is arranged on the taking and placing piece body (731), the taking and placing piece linear driving unit can drive the taking and placing piece body (731) to move along the second guide rail so as to drive the clamp hook (732) to move along the second guide rail, the clamp hook (732) can move to the bottom of the sub clamp (61), a corresponding groove is formed in the bottom of the sub clamp (61), and the clamp hook (732) can hook the corresponding groove and drag the sub clamp (61) into the second taking and placing base (72), so that the disc disassembling work and the work of taking the target sub clamp (61) are completed;

wherein, when using anchor clamps to get and put mechanism (7) tear open split charging dish anchor clamps (6), still include the following step:

when a designated sub-clamp (61) needs to be extracted, only the clamp taking and placing mechanism (7) is in butt joint with the tray loading clamp (6), and the first ejector block (741) is arranged below the target sub-clamp (61); after the split clamps (61) are abutted, the second ejector block (742) is lifted, all the split clamps (61) above the second ejector block (742) are supported to lift together, when the cam follower (745) moves to the limit position in the variable-pitch plate (744), at the moment, all the split clamps (61) above the second ejector block (742) are separated from the split clamps (61) where the first ejector block (741) is located, the second ejector block (742) continues to lift, meanwhile, the variable-pitch plate (744) drives the first ejector block (741) to lift, the first ejector block (741) supports the target split clamps (61) to lift to a specified height, lifting is stopped, at the moment, the target split clamps (61) are separated from the lower split clamps (61), namely, the target split clamps (61) are separated from the adjacent split clamps (61), at the moment, the clamp hooks (732) move towards the target split clamps (61), pull the split clamps (61) back into the second picking base (72), and the next step is carried out, and the disc dismantling process is completed.

2. The method for baking and drying lithium batteries based on stacked tray fixtures according to claim 1, wherein the first counting unit is a photoelectric switch, the first counting unit is arranged on the side surface of the oven (31), the first counting unit can be triggered once every time the oven door is opened, the first triggering represents that the sub-fixtures (61) are placed in the oven, the second triggering represents that the sub-fixtures (61) are taken out, and the lithium batteries are baked once for one group each time, so that counting is performed.

3. The baking and drying method for lithium batteries based on stacked tray fixtures according to claim 2, wherein the second counting unit is a photoelectric switch, a buffer cavity for placing the sub-fixtures (61) is arranged on the buffer frame, the second counting unit is arranged on the side surface of each buffer cavity, the second counting unit can be triggered once when the sub-fixtures (61) are placed once, the first triggering represents that the sub-fixtures (61) are placed in the buffer frame, the second triggering represents that the sub-fixtures (61) are taken out, and the sub-fixtures (61) are taken out for a group of sub-fixtures (61) twice, so that counting is performed.

4. A stacked palletizing fixture based lithium battery baking and drying method as claimed in claim 3, wherein the blanking device (2) comprises a cooling mechanism, the cooling mechanism comprises a cooling tray, a cooling channel (21) and a cold air system (22), the cooling channel (21) comprises an upper channel and a lower channel, the upper channel and the lower channel are internally provided with conveyor belts, the cold air system (22) is communicated with the upper channel, the cooling tray is used for placing lithium batteries, the upper channel is used for cooling the lithium batteries, the lower channel is used for recovering the cooling tray, the blanking mechanism further comprises a blanking frame (23), a blanking manipulator and a blanking conveyor belt (24), the blanking manipulator is arranged on the blanking frame (23), the fixture taking and putting mechanism (7) is used for putting the lithium batteries on the cooling tray after the palletizing fixture (6) is disassembled in layers, the upper channel is a cooling station, the lower channel is an empty disc reflux, when the cooling tray passes through the upper channel, the cooling system (22) in the cooling channel (21) cools the cooling tray, the lithium batteries are cooled to a specification, then the lithium batteries are cooled to a specification, and then the blanking manipulator is taken from the cooling channel to the lower channel through the other end of the cooling channel, and the blanking manipulator is arranged on the blanking manipulator to grasp the blanking tray through the cooling station.