Automatic grading device for lithium batteries

Abstract

The utility model relates to an automatic lithium battery grading device which comprises a first conveying line, a feeding mechanism, a plurality of grading mechanisms and a discharging mechanism. The feeding mechanism is used for feeding the trays fully loaded with the lithium batteries of different gears to the first conveying line. And all the grading mechanisms are used for transferring the lithium batteries at the same gear on the trays to the same tray and transferring the trays fully loaded with the lithium batteries at the same gear to the first conveying line. And the discharging mechanism is used for transferring the lithium batteries at the same gear on the tray to the next working procedure. According to the utility model, the plurality of grading mechanisms are arranged to respectively grade the lithium batteries, and then the lithium batteries at the same grade in the tray are sequentially transferred to the next working procedure by the blanking mechanism, so that the grading requirements of more grades are met, the grading efficiency is improved, and the production cost is reduced; and when grading is not needed, the trays of the lithium batteries which are fully loaded and do not need to be graded are directly conveyed to the discharging mechanism through the first conveying line, transferring through a mechanical arm is not needed, and the transferring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to an automatic grading device for lithium batteries. Background Art

[0002] In the production of lithium battery modules, it is usually necessary to assemble lithium batteries with similar performance. However, in actual production, the performance of lithium batteries varies greatly due to various factors, so it is necessary to separate lithium batteries with different performances, and then assemble lithium batteries with similar performances into modules. Binning is a back-end process in lithium battery production. According to process requirements, lithium batteries of different gears in the tray are separated, and then lithium batteries of the same gear are loaded into the same tray.

[0003] At present, the grading equipment used in the actual production of lithium batteries is Figure 1 As shown, the lithium batteries to be graded are grabbed by the module robot and placed in the tooling of the graded stepping line. When the number of lithium batteries in the same gear meets the number of lithium batteries that fill the tray, the module robot at the rear end grabs the lithium batteries in the same gear and puts them in the same tray until the tray is full. There are two main problems with this grading equipment: the first problem is that when the process changes and more gears need to be added, the number of stepping line gear channels that have been designed in the early stage is insufficient, resulting in the inability to add more gears; the second problem is that when the lithium batteries do not need to be graded, the entire tray cannot flow directly into the subsequent process, and the module robot of the existing grading equipment needs to be used for transportation, resulting in reduced work efficiency and energy waste. Utility Model Content

[0004] Based on this, it is necessary to address the problems existing in current grading equipment, and the utility model provides a lithium battery automatic grading device.

[0005] The utility model provides a lithium battery automatic grading device, which comprises:

[0006] Conveyor line 1, a loading station, a plurality of grading stations, and a unloading station are sequentially arranged along the conveying direction of conveyor line 1;

[0007] A loading mechanism, which is arranged at the loading station and is used to load a tray fully loaded with lithium batteries of different gears to the conveyor line 1;

[0008] A plurality of grading mechanisms, each of which is respectively arranged at a plurality of the grading stations, and each grading mechanism is used to transfer lithium batteries of the same grading position on a tray to the same tray and to transfer a tray fully loaded with lithium batteries of the same grading position to a conveyor line 1; and

[0009] The unloading mechanism is arranged at the unloading station and is used to transfer the lithium batteries at the same level on the tray to the next process.

[0010] The utility model proposes an automatic lithium battery grading device, which grades the lithium batteries respectively by setting a plurality of grading mechanisms, and then the unloading mechanism transfers the lithium batteries of the same gear in the tray to the next process in sequence, so as to meet the grading requirements of more gears, improve the grading efficiency, and reduce the production cost; when grading is not needed, the tray fully loaded with lithium batteries that do not need to be graded can be directly conveyed to the unloading mechanism through the conveyor line, and there is no need to transfer them through a robot, which improves the transfer efficiency.

[0011] As a further improvement of the above scheme of the utility model, the conveyor line 1 adopts a roller conveyor line, and the grading mechanism includes a conveyor platform 1, a lifting and transferring member 1, a pneumatic stop member 1, a plurality of conveyor lines 2, a plurality of conveyor platforms 2 and a grabbing mechanism 1; wherein:

[0012] The conveying platform 1 is arranged on one side of the conveying line 1;

[0013] The lifting and transferring member 1 is arranged between the rollers of the conveyor line 1 and is used to realize the transfer of the pallet between the conveyor line 1 and the conveyor platform 1;

[0014] The pneumatic stopper is arranged between the rollers of the conveyor line and is located downstream of the lifting and moving part. The pneumatic stopper is used to stop the pallet on the conveyor line on the lifting and moving part.

[0015] Each conveyor platform 2 is used to place a pallet, and the pallets on different conveyor platforms 2 are used to place lithium batteries of different gears;

[0016] The first grabbing mechanism is used to transfer the lithium batteries in the tray on the first conveyor to the trays of each conveyor second, and the lithium batteries in the same tray have the same gear position;

[0017] Each conveyor line 2 is connected to a conveyor platform 2, and the conveyor line 2 is used to receive a pallet fully loaded with lithium batteries of the same gear conveyed by the conveyor platform 2 and convey the pallet to the conveyor line 1.

[0018] As a further improvement of the above scheme of the utility model, the grading mechanism also includes a plurality of lifting and transferring parts 2, a plurality of pneumatic stop parts 2, a plurality of lifting and transferring parts 3 and a plurality of pneumatic stop parts 3; a lifting and transferring part 2 is provided at the joint between the conveyor line 2 and each conveyor platform 2, and when the lifting and transferring part 2 is in the lifting state, the conveying surface height of the lifting and transferring part 2 is the same as the conveying surface height of the corresponding conveyor platform 2 and is used to receive the pallet conveyed by the conveyor platform 2; a pneumatic stop part 2 is provided downstream of each lifting and transferring part 2 ; A number of lifting and transferring parts three are arranged at intervals between the rollers of conveyor line one, and a number of lifting and transferring parts three are respectively arranged in one-to-one correspondence with a number of conveyor lines two. When the lifting and transferring parts two are in a lifting state, the conveying surface of the lifting and transferring parts three is at the same height as the conveying surface of the corresponding conveyor line two and is used to receive the pallet conveyed by the conveyor line two; a number of pneumatic stop parts three are arranged at intervals between the rollers of conveyor line one, and a pneumatic stop part three is arranged upstream of each lifting and transferring part three, and the pneumatic stop part three is used to stop the pallet on the conveyor line one.

[0019] As a further improvement of the above-mentioned scheme of the utility model, both conveyor platform 1 and conveyor platform 2 adopt roller conveyor lines, and a lifting positioning member 1 for lifting and positioning the pallet is arranged between the rollers of conveyor platform 1, and a lifting positioning member 2 for lifting and positioning the pallet is arranged between the rollers of each conveyor platform 2.

[0020] As a further improvement of the above-mentioned scheme of the utility model, the grading mechanism also includes a barcode scanning gun 1, multiple barcode scanning guns 2 and several barcode scanning guns 3; the barcode scanning gun 1 is arranged on one side of the lifting and transferring part 1 and is used to scan and identify the pallet on the lifting and transferring part 1; multiple barcode scanning guns 2 are respectively arranged on one side of multiple conveying platforms 2 and are respectively used to scan and identify the pallets on multiple conveying platforms 2; several barcode scanning guns 3 are respectively arranged on one side of several lifting and transferring parts 3 and are respectively used to scan and identify the pallets on several lifting and transferring parts 3.

[0021] As a further improvement of the above scheme of the utility model, the loading mechanism includes a finished product warehouse, a stacker and an in-and-out warehouse machine; the finished product warehouse stores multiple pallets and each pallet is fully loaded with lithium batteries of different gears; the stacker is used to fork the pallets in the finished product warehouse and transfer them to the in-and-out warehouse machine, and the in-and-out warehouse machine transfers the pallets to conveyor line one.

[0022] As a further improvement of the above-mentioned scheme of the utility model, the unloading mechanism includes a conveyor platform three, a pneumatic stop component four, a barcode scanning gun four and a grabbing mechanism two; the conveyor platform three is arranged between the rollers of the conveyor line one and is provided with a lifting positioning component three for positioning the pallet; the pneumatic stop component four is arranged between the rollers of the conveyor line one and is located downstream of the conveyor platform three, and the pneumatic stop component four is used to stop the pallet on the conveyor line one on the conveyor platform three; the barcode scanning gun four is arranged on one side of the conveyor platform three and is used to scan and identify the pallet on the conveyor platform three; the grabbing mechanism two is used to transfer the lithium batteries of the same gear in the pallet on the conveyor platform three to the next process.

[0023] As a further improvement of the above-mentioned scheme of the utility model, the automatic grading device for lithium batteries also includes a conveyor line three and an interlayer elevator one; the conveyor line three is arranged below the conveyor line one and its conveying direction is opposite to the conveying direction of the conveyor line one; the interlayer elevator one is arranged at the discharge end of the conveyor line one and conveys the pallet at the discharge end of the conveyor line one to the conveyor line three; the in-and-out warehouse machine is also used to receive the pallet at the discharge end of the conveyor line three, and the stacker is also used to fork out the pallet on the in-and-out warehouse machine and store the pallet in the finished product warehouse.

[0024] As a further improvement of the above scheme of the utility model, the conveyor line 3 adopts a roller conveyor line; each grading mechanism also includes a plurality of conveyor lines 4, a plurality of lifting and transferring parts 4, a plurality of pneumatic stop parts 5 and a plurality of inter-layer elevators 2; a plurality of conveyor lines 4 are respectively arranged below a plurality of conveyor lines 2 and the conveying direction of the conveyor lines 4 is opposite to the conveying direction of the conveyor lines 2; a plurality of lifting and transferring parts 4 are arranged at intervals between the rollers of the conveyor line 3 and a plurality of lifting and transferring parts 3 are respectively arranged one by one with a plurality of conveyor lines 4, and the lifting and transferring parts 4 are in the lifting position. In the lifted and transferred state, the conveying surface height of the lifting and transferring member four is the same as the conveying surface height of the corresponding conveyor line four and is used to convey the pallets on the conveyor line three to the corresponding conveyor line four; a number of pneumatic stop members five are arranged at intervals between the rollers of the conveyor line three and a pneumatic stop member five is arranged downstream of each lifting and transferring member four, and the pneumatic stop member five is used to stop the pallets on the conveyor line three on the lifting and transferring member four; a number of inter-layer elevators two are respectively arranged at the discharge ends of a number of conveyor lines four and are used to convey the pallets on the conveyor line four to the conveyor line two above the conveyor line four.

[0025] As a further improvement of the above-mentioned scheme of the utility model, the grading mechanism also includes a plurality of barcode scanning guns five, which are respectively arranged on one side of a plurality of lifting and transferring parts four and are respectively used to scan and identify the pallets on the lifting and transferring parts four.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The utility model proposes an automatic lithium battery grading device, which grades the lithium batteries respectively by setting a plurality of grading mechanisms, and then the unloading mechanism transfers the lithium batteries of the same gear in the tray to the next process in sequence, so as to meet the grading requirements of more gears, improve the grading efficiency, and reduce the production cost; when grading is not needed, the tray fully loaded with lithium batteries that do not need to be graded can be directly conveyed to the unloading mechanism through the conveyor line, and there is no need to transfer them through a robot, which improves the transfer efficiency.

[0028] The utility model adopts a grabbing mechanism to place lithium batteries of different gears into corresponding trays, and does not need a stepping line for caching, thus improving the efficiency of the grading. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a lithium battery grading device in the prior art;

[0030] Figure 2 A schematic diagram of the structure of an automatic grading device for lithium batteries proposed in an embodiment of the utility model;

[0031] Figure 3 A diagram showing the transport trajectory of a pallet fully loaded with lithium batteries to be graded during the graded process of an automatic lithium battery graded device proposed in an embodiment of the utility model;

[0032] Figure 4 A transport trajectory diagram of a pallet fully loaded with lithium batteries of the same gear after being graded in a lithium battery automatic grader proposed in an embodiment of the utility model;

[0033] Figure 5 A transport track diagram of an empty pallet on a conveyor line 1 during the sorting of an automatic lithium battery sorting device proposed in an embodiment of the utility model;

[0034] Figure 6 A transport track diagram of an empty tray on conveyor line 3 during grading of an automatic grading device for lithium batteries proposed in an embodiment of the utility model;

[0035] Figure 7 A diagram showing the transport trajectory of a pallet of lithium batteries that are fully loaded with no need for grading when a lithium battery automatic grading device proposed in an embodiment of the utility model is not graded;

[0036] Figure 8 A transport trajectory diagram of an empty pallet of an automatic lithium battery grading device proposed in an embodiment of the utility model when no grading is performed.

[0037] Figure numerals: 1. Conveyor line one; 2. Conveyor platform one; 3. Lifting and moving part one; 4. Pneumatic stop part one; 5. Conveyor line two; 6. Conveyor platform two; 7. Grabbing mechanism one; 8. Lifting and moving part two; 9. Pneumatic stop part two; 10. Lifting and moving part three; 11. Pneumatic stop part three; 12. Barcode scanning gun one; 13. Barcode scanning gun two; 14. Finished product warehouse; 15. Stacker; 16. In-and-out warehouse machine; 17. Conveyor platform three; 18. Pneumatic stop part four; 19. Barcode scanning gun four; 20. Grabbing mechanism two; 21. Conveyor line three; 22. Inter-floor elevator one; 23. Conveyor line four; 24. Lifting and moving part four; 25. Pneumatic stop part five; 26. Inter-floor elevator two; 27. Barcode scanning gun three; 28. Barcode scanning gun five. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Reference Figure 2-Figure 8 The present embodiment provides a lithium battery automatic grading device, including a conveyor line 1, a loading mechanism, two grading mechanisms and a unloading mechanism, and may also include a conveyor line 3 21 and an interlayer elevator 22.

[0040] Conveyor line 1 is used to convey pallets. A loading station, two grading stations, and a unloading station are sequentially arranged along the conveying direction of conveyor line 1. In this embodiment, conveyor line 1 adopts an existing roller conveyor line, which will not be described in detail here. Conveyor line 1 is started and stopped by a background controller.

[0041] Conveyor line 3 21 is arranged below conveyor line 1, thereby forming a double-layer roller conveyor line with conveyor line 1. The conveying direction of conveyor line 3 21 is opposite to that of conveyor line 1. In this embodiment, conveyor line 3 21 also adopts an existing roller conveyor line.

[0042] The inter-layer elevator 22 is arranged at the discharge end of the conveyor line 1 and lowers the pallet at the discharge end of the conveyor line 1 to the conveyor line 3 21. In this embodiment, the inter-layer elevator 22 adopts the existing technology, which will not be described in detail here.

[0043] The loading mechanism is arranged at the loading station and is used to load the pallets loaded with lithium batteries of different gears to the conveyor line 1. In this embodiment, the loading mechanism includes a finished product warehouse 14, a stacker 15 and an in-and-out machine 16. The finished product warehouse 14 stores a plurality of pallets and each pallet is fully loaded with lithium batteries of different gears. In this embodiment, the lithium batteries on each pallet in the finished product warehouse 14 are all lithium batteries that have been formed and tested. There are two-dimensional codes on the pallets and lithium batteries. Two positioning holes (not shown) are arranged at the bottom of the existing pallet. The information of each lithium battery is known and the information of each lithium battery is bound to the pallet where it is located. By obtaining the two-dimensional code information of the pallet, the information of all lithium batteries on it can be obtained. The lithium batteries on the same pallet may have the same gear, or they may be different and need to be graded. The stacker 15 is used to fork the pallets in the finished product warehouse 14 and transfer them to the in-and-out machine 16 or fork the pallets on the in-and-out machine 16 and store them in the finished product warehouse 14. The loader-out-of-warehouse machine 16 is arranged at the feed end of conveyor line 1. During the lifting process, the loader-out-of-warehouse machine 16 can dock with the feed end of conveyor line 1 and the discharge end of conveyor line 3 21. When the loader-out-of-warehouse machine 16 docks with conveyor line 1, the loader-out-of-warehouse machine 16 transfers the pallet to conveyor line 1; when the loader-out-of-warehouse machine 16 docks with conveyor line 3 21, the loader-out-of-warehouse machine 16 receives the pallet transported by conveyor line 3 21.

[0044] Two grading mechanisms are respectively arranged at two grading stations, and each grading mechanism is used to transfer lithium batteries of the same gear on the tray to the same tray and transfer the tray fully loaded with lithium batteries of the same gear to the conveyor line 1. In this embodiment, two grading mechanisms are arranged. When the lithium batteries need to be divided into more gears, other numbers of grading mechanisms such as 3, 4, etc. can be arranged to meet different grading requirements. In this embodiment, each grading mechanism includes a conveying platform 2, a lifting and transferring part 3, a pneumatic stop part 4, two conveying lines 5, four conveying platforms 6 and a grasping mechanism 7, and may also include four lifting and transferring parts 8, four pneumatic stop parts 9, two lifting and transferring parts 3 10, two pneumatic stop parts 3 11, a barcode scanning gun 1 12, four barcode scanning guns 2 13, two barcode scanning guns 3 27, two conveying lines 4 23, two lifting and transferring parts 4 24, two pneumatic stop parts 5 25, two inter-layer elevators 2 26 and two barcode scanning guns 5 28.

[0045] The conveyor platform 2 is arranged on one side of the conveyor line 1 and is arranged perpendicular to the conveyor line 1. The conveying direction of the conveyor platform 2 is perpendicular to the conveying direction of the conveyor line 1. In this embodiment, the conveyor platform 2 adopts the existing roller conveyor line. Two lifting positioning members 1 are arranged on the conveyor platform 2. The lifting positioning member 1 is arranged between the rollers of the conveyor platform 2. The lifting positioning member 1 adopts the existing cylinder lifting positioning equipment. The existing cylinder lifting positioning equipment includes a positioning cylinder and a positioning pin. The positioning cylinder is fixed below the conveying surface of the conveyor platform 2. The positioning pin is fixed to the top of the piston rod of the positioning cylinder. When there is a pallet on the conveyor platform 2, the positioning cylinder is extended (that is, the lifting positioning member 1 is in the lifting state), and the positioning pin passes through between two adjacent rollers of the conveyor platform 2 and is inserted into the positioning hole at the bottom of the pallet.

[0046] The lifting and transferring member 3 is located on one side of the conveying platform 2 and is arranged between two adjacent rollers of the conveying line 1. In this embodiment, the lifting and transferring member 3 adopts the existing lifting and transferring equipment, which includes a lifting cylinder, a lifting plate and two belt conveying mechanisms. The lifting cylinder is fixed below the conveying line 1, and the lifting plate is fixed to the top of the piston rod of the lifting cylinder. The two belt conveying mechanisms are arranged on the lifting plate for driving the transfer. The two belt conveying mechanisms are parallel to each other and the conveying surface heights are consistent. The conveying directions of the two belt conveying mechanisms are perpendicular to the conveying direction of the conveying line 1. When the lifting cylinder drives the lifting plate to lift, each belt conveying mechanism passes between two adjacent conveying rollers of the conveying line 1. That is to say, when the lifting and transferring member 3 is in the lifting state, the height of the conveying surface of the two belt conveying mechanisms is the same as the height of the conveying surface of the conveying platform 2. The belt conveying mechanism conveys the pallet to the conveying platform 2 or receives the pallet conveyed by the conveying platform 2.

[0047] The barcode scanner 12 is arranged on one side of the conveyor line 1 and is used to scan and identify the QR code on the side of the pallet on the lifting and transferring member 3. After the barcode scanner 12 scans the pallet, the background controller can obtain the information of all lithium batteries on the pallet.

[0048] The pneumatic stopper 4 is arranged between the rollers of the conveyor line 1 and downstream of the lifting and moving part 3. The pneumatic stopper 4 is used to stop the pallet on the conveyor line 1 on the lifting and moving part 3. In this embodiment, the pneumatic stopper 4 adopts the pneumatic stopper device in the prior art, which includes a stopper cylinder and a stopper block. The stopper cylinder is fixed below the conveyor line 1, and the stopper block is fixed to the top of the piston rod of the stopper cylinder. When the stopper cylinder is extended (that is, the pneumatic stopper 4 is in the lifting state), the stopper block passes through between two adjacent conveyor rollers of the conveyor line 1, blocking the pallet on the conveyor line 1 so that the pallet stays on the lifting and moving part 3.

[0049] The two conveyor lines 25 are both arranged perpendicularly to the conveyor line 1, and the conveying directions of the two conveyor lines 25 are perpendicular to the conveying direction of the conveyor line 1. In this embodiment, the two conveyor lines 25 both adopt the existing roller conveyor line. Two conveyor platforms 26 are arranged on the opposite sides of the two conveyor lines 25, and the conveying direction of the conveyor platforms 26 is perpendicular to the conveying direction of the conveyor line 25. In this embodiment, the conveyor platform 26 adopts the existing roller conveyor line as described above, and two lifting positioning parts 2 are arranged on the conveyor platform 26, and the lifting positioning parts 2 are arranged between the rollers of the conveyor platform 26. The lifting positioning parts 2 adopt the existing cylinder lifting positioning equipment as described above. In the initial state, an empty pallet is placed on each conveyor platform 26, and the lifting positioning parts 2 are in a lifting state to position the empty pallet. In this embodiment, each grading mechanism is provided with four conveyor platforms 26. Of course, in other embodiments, in order to meet the grading requirements, the conveyor platforms 26 of each grading mechanism can also be provided with other numbers, such as 3, 5, etc.

[0050] The four barcode scanning guns 2 13 are respectively arranged on one side of the four conveying platforms 2 6 , and the barcode scanning guns 2 13 scan and identify the two-dimensional code on the side of the pallet on the corresponding lifting and transferring member 1 3 .

[0051] A lifting and moving part 28 is provided at a position corresponding to the conveying platform 26 on the conveying line 25, and a pneumatic stopper 29 is provided downstream of each lifting and moving part 28 on the conveying line 25. In this embodiment, the lifting and moving part 28 is provided between two adjacent rollers of the conveying line 25, and the lifting and moving part 28 adopts the existing lifting and moving equipment as described above. When the lifting and moving part 28 is in the lifting state, the height of the conveying surface of the two belt conveying mechanisms of the lifting and moving part 28 is the same as the height of the conveying surface of the corresponding conveying platform 26, and the belt conveying mechanism of the lifting and moving part 28 conveys the pallet to the conveying platform 26 or receives the pallet conveyed by the conveying platform 26. The pneumatic stopper 29 is provided between the rollers of the conveying line 25. In this embodiment, the pneumatic stopper 29 adopts the pneumatic stopper in the prior art as described above. When the pneumatic stopper 29 is in the lifting state, the pneumatic stopper 29 stops the pallet on the conveying line 25 on the lifting and moving part 28.

[0052] A lifting and moving component 3 10 is provided at the joint of the conveyor line 1 and the two conveyor lines 2 5, and a pneumatic stop component 3 11 is provided upstream of each lifting and moving component 3 10. In this embodiment, the lifting and moving component 3 10 is provided between two adjacent rollers of the conveyor line 1, and the lifting and moving component 3 10 adopts the existing lifting and moving equipment as described above. When the lifting and moving component 3 10 is in the lifting state, the height of the conveying surface of the two belt conveying mechanisms of the lifting and moving component 3 10 is the same as the height of the conveying surface of the corresponding conveyor line 2 5, and the belt conveying mechanism of the lifting and moving component 3 10 is used to receive the pallet conveyed by the conveyor line 2 5. The pneumatic stop component 3 11 is provided between the rollers of the conveyor line 1. In this embodiment, the pneumatic stop component 3 11 adopts the pneumatic stop equipment in the prior art as described above. When the pneumatic stop component 3 11 is in the lifting state, the pneumatic stop component 3 11 stops the pallet on the conveyor line 1 to prevent the pallet from entering the lifting and moving component 3 10.

[0053] The two barcode scanning guns 3 27 are respectively arranged on one side of the lifting and transferring component 3 10 , and the barcode scanning guns 3 27 scan and identify the QR code on the side of the pallet on the corresponding lifting and transferring component 3 10 .

[0054] The grabbing mechanism 17 is arranged between the four conveying platforms 26. The grabbing mechanism 17 sequentially grabs the lithium batteries in the trays positioned on the conveying platform 2 and places them in the empty trays positioned on the four conveying platforms 26, respectively, to ensure that the lithium batteries on the same tray have the same gear and the lithium batteries on different conveying platforms 26 have different gears. In this embodiment, the grabbing mechanism 17 uses an existing six-axis robot. Of course, in other embodiments, the grabbing mechanism 17 can also use other manipulators or three-axis robots.

[0055] Two conveyor lines four 23 are respectively arranged below the two conveyor lines two 5, and the conveying direction of the conveyor line four 23 is opposite to that of the conveyor line two 5. In this embodiment, each conveyor line four 23 adopts the existing roller conveyor line. The feeding ends of the two conveyor lines four 23 are both connected to the conveyor line three 21, and the joints of the conveyor line three 21 and the conveyor line four 23 are provided with a lifting and transferring component four 24, and a pneumatic stop component five 25 is provided downstream of each lifting and transferring component four 24. In this embodiment, the lifting and transferring component four 24 is arranged between two adjacent rollers of the conveyor line three 21, and the lifting and transferring component four 24 adopts the existing lifting and transferring equipment as described above. When the lifting and transferring component four 24 is in the lifting state, the height of the conveying surface of the two belt conveying mechanisms of the lifting and transferring component four 24 is the same as the height of the conveying surface of the corresponding conveyor line four 23, and the belt conveying mechanism of the lifting and transferring component four 24 conveys the pallet to the conveyor line four 23. The pneumatic stop member 5 25 is arranged between the rollers of the conveyor line 3 21. In the present embodiment, the pneumatic stop member 5 25 adopts the pneumatic stop device in the prior art as described above. When the pneumatic stop member 5 25 is in the lifting state, the pneumatic stop member 5 25 stops the pallet on the conveyor line 3 21 on the lifting and transferring member 4 24.

[0056] The two barcode scanning guns 5 28 are respectively arranged on one side of the two lifting and transferring parts 4 24 , and the barcode scanning guns 5 28 scan and identify the two-dimensional code on the side of the tray on the corresponding lifting and transferring parts 4 24 .

[0057] Two interlayer elevators 26 are respectively arranged at the discharge ends of the two conveyor lines 2 5, and the interlayer elevators 26 are used to lift the pallets on the conveyor line 4 23 to the conveyor line 2 5. In this embodiment, the interlayer elevators 26 adopt the existing technology, which will not be described in detail here.

[0058] The unloading mechanism is arranged at the unloading station and is used to transfer the lithium batteries of the same gear on the pallet to the next process (that is, the encapsulation process). In this embodiment, the unloading mechanism includes a conveying platform three 17, a pneumatic stopper four 18, a barcode scanning gun four 19 and a gripping mechanism two 20. The conveying platform three 17 is arranged between the rollers of the conveyor line one 1. In this embodiment, the conveying platform three 17 adopts the existing roller conveyor line and the height of its conveying surface is the same as the height of the conveying surface of the conveyor line one 1. The conveying platform three 17 is provided with two jacking positioning members three for positioning the pallet. In this embodiment, the jacking positioning member three adopts the existing cylinder jacking positioning equipment as described above. When the jacking positioning member three is in the jacking state, the positioning pin of the jacking positioning member three passes through between two adjacent rollers of the conveying platform three 17 and is inserted into the positioning hole at the bottom of the pallet on the conveying platform three 17. The pneumatic stop member 4 18 is arranged between the rollers of the conveyor line 1 and is located downstream of the conveyor platform 3 17. In this embodiment, the pneumatic stop member 4 18 adopts the pneumatic stop device in the prior art as described above. When the pneumatic stop member 4 18 is in the jacking state, the pneumatic stop member 4 18 stops the pallet on the conveyor line 1 on the conveyor platform 3 17. The barcode scanner 4 19 is arranged on one side of the conveyor platform 3 17 and is used to scan and identify the QR code on the side of the pallet on the conveyor platform 3 17. After the barcode scanner 4 19 scans the pallet, the background controller can obtain the information of all lithium batteries on the pallet. The gripping mechanism 2 20 is used to transfer the lithium batteries of the same gear in the pallet on the conveyor platform 3 17 to the next process. In this embodiment, the gripping mechanism 2 20 adopts an existing six-axis robot. Of course, in other embodiments, the gripping mechanism 2 20 can also adopt other manipulators or three-axis robots.

[0059] It should be noted that the conveyor lines, conveyor platforms, lifting and transferring parts, pneumatic stop parts, barcode scanners, stackers, warehouse entry and exit machines, inter-layer elevators, lifting and positioning parts, etc. used in this embodiment are all existing mature equipment with low failure rates and simple maintenance.

[0060] Next, the working principle of the automatic lithium battery grading device of this embodiment is described. There are mainly two situations, one is that the lithium batteries on the tray need to be graded, and the other is that the lithium batteries on the tray do not need to be graded.

[0061] 1. The working principle of the lithium batteries on the tray are not all in the same position and need to be divided into different positions

[0062] (1) Combination Figure 3 In the initial state, an empty pallet is placed on each conveyor platform 2 6 , and the barcode scanner 2 13 scans and identifies the empty pallet on the corresponding conveyor platform 2 6 , and the background controller obtains the pallet information on each conveyor platform 2 6 .

[0063] The stacker 15 forks a pallet full of lithium batteries to be sorted stored in the finished product warehouse 14 and places the pallet full of lithium batteries to be sorted on the warehouse entry and exit machine 16. The warehouse entry and exit machine 16 descends, and the pallet full of lithium batteries to be sorted on the warehouse entry and exit machine 16 enters the conveyor line 1, and the conveyor line 1 transports the pallet forward.

[0064] The pneumatic stopper 14 of the upstream grading mechanism is in a jacking state and stops the pallet fully loaded with lithium batteries to be graded on the jacking and moving member 13. At this time, the barcode scanner 12 scans the pallet, so that the background robot obtains the information of the lithium batteries on the pallet. Then the jacking and moving member 13 of the upstream grading mechanism lifts and transports the pallet to the conveying platform 12, and the jacking positioning member 1 lifts to position the pallet. The grabbing mechanism 17 is controlled by the background controller to grab the lithium batteries on the pallet in turn and put each lithium battery into the designated pallet on the conveying platform 26. The background controller also binds the lithium battery information with the pallet information. At this time, the lithium battery is divided into four gears. If it is necessary to continue to grade the lithium batteries, the jacking and positioning member 1 descends, and the conveying platform 2 delivers the pallet carrying the remaining lithium batteries to be graded to the jacking and moving member 13, the jacking and moving member 3 and the pneumatic stopper 14 descend, and the pallet continues to be transported forward by the conveyor line 1.

[0065] The pneumatic stopper 14 of the grading mechanism located downstream is in a lifted state and stops the pallet fully loaded with lithium batteries to be graded on the lifting and transferring member 13. At this time, the barcode scanning gun 12 scans the pallet, so that the background robot obtains the information of the remaining lithium batteries on the pallet. Then the lifting and transferring member 3 of the grading mechanism located downstream lifts and transports the pallet to the conveying platform 12, and the lifting and positioning member 1 lifts to position the pallet. The grabbing mechanism 17 is controlled by the background controller to grab the remaining lithium batteries on the pallet in turn and put each lithium battery into the designated pallet on the conveying platform 26. The background controller also binds the lithium battery information to the pallet information. At this time, the remaining lithium batteries in the pallet are divided into four gears again, and all lithium batteries are divided into eight gears in total.

[0066] (2) Combination Figure 4, if the gripping mechanism 1 7 obtains that the number of lithium batteries in a certain gear it transfers reaches the full load number of the pallet, the background controller controls the jacking positioning part 2 on the conveying platform 2 6 where the pallet is located to descend according to the feedback of the gripping mechanism 1 7, and controls the jacking and transferring part 28 corresponding to the conveying platform 2 6 to be lifted, and the conveying platform 2 6 conveys the pallet loaded with lithium batteries of the same gear to the jacking and transferring part 2 8, and then the jacking and transferring part 2 8 descends, and the pallet is conveyed forward by the conveyor line 2 5; the jacking and transferring part 3 10 and the pneumatic stop part 3 11 corresponding to the conveyor line 2 5 are lifted, and the conveyor line 2 5 conveys the pallet loaded with lithium batteries of the same gear to the jacking and transferring part 3 10, and after the barcode scanning gun 3 27 scans and identifies the pallet loaded with lithium batteries of the same gear, the jacking and transferring part 3 10 and the pneumatic stop part 3 11 descend, and the pallet loaded with lithium batteries of the same gear continues to be conveyed forward by the conveyor line 1. When the barcode scanner 4 19 identifies the pallet, the pneumatic stopper 4 18 is lifted to stop the pallet on the conveyor 3 17, and then the positioning member 3 is lifted to position the pallet. The grabbing mechanism 2 20 grabs the lithium batteries on the pallet in turn and transfers them to the encapsulation process for encapsulation.

[0067] (3) Combination Figure 5 , Figure 6 When all the lithium batteries in the tray on the conveyor table 2 of the grading mechanism are grabbed away, the barcode scanner 12 recognizes that the tray is an empty tray, the lifting and positioning part 1 descends, and the conveyor table 2 conveys the empty tray to the lifting and moving part 3, and then the lifting and moving part 3 and the pneumatic stop part 4 descend, and the conveyor line 1 conveys the empty tray forward; when the barcode scanner 4 19 recognizes that the tray is an empty tray, the pneumatic stop part 4 18 descends, and the conveyor line 1 conveys the empty tray to the interlayer elevator 22 at the discharge end, and the interlayer elevator 22 descends the empty tray and conveys it to the conveyor line 3 21, and the conveyor line 3 21 conveys the empty tray forward.

[0068] Similarly, if all the lithium batteries in the pallet on the conveyor platform three 17 are taken away, the barcode scanning gun four 19 scans the empty pallet to mark the pallet as an empty pallet, the lifting positioning part three and the pneumatic stop part four 18 descend, and the conveyor line one 1 transports the empty pallet forward to the interlayer elevator one 22 at its discharge end, and the interlayer elevator one 22 descends the empty pallet and transports it to the conveyor line three 21, and the conveyor line three 21 transports the empty pallet forward.

[0069] If there is a lack of pallets on the conveying platform 2 6 of the grading mechanism at this time, the pneumatic stopper 5 25 of the grading mechanism lifts and stops the empty pallet so that it stays on the corresponding lifting and transferring component 4 24, and the barcode scanning gun 5 28 scans the barcode on the pallet to confirm that the pallet is an empty pallet, and the lifting and transferring component 4 24 lifts and transports the empty pallet to the conveying line 4 23, and the conveying line 4 23 transports the empty pallet to the inter-layer elevator 26, and the inter-layer elevator 26 lifts the empty pallet to the conveying line 2 5, and the pneumatic stopper 29 corresponding to the conveying platform 2 6 lifts and stops the empty pallet so that it stays on the corresponding lifting and transferring component 2 8, and then the lifting and transferring component 28 lifts and transports the empty pallet to the corresponding conveying platform 2 6, and the lifting positioning component 2 on the conveying platform 2 6 lifts to position the empty pallet, and at the same time the barcode scanning gun 2 13 scans the barcode to identify the pallet information and the background controller records the pallet information. If there is no shortage of pallets on the conveyor platform 2 6 of the grading mechanism, the conveyor line 3 21 conveys the empty pallet forward to the warehousing machine 16, the stacker 15 forks out the empty pallet on the warehousing machine 16 and stores it in the finished product warehouse 14, and the stacker 15 sends the storage location information of the empty pallet to the background controller, which records the storage location information of the empty pallet.

[0070] 2. The working principle of the lithium batteries on the tray are all the same and do not need to be divided into different levels

[0071] Combination Figure 7 , Figure 8 The stacker 15 forks the pallet fully loaded with lithium batteries of the same gear stored in the finished product warehouse 14 and places the pallet fully loaded with lithium batteries of the same gear on the warehouse entry and exit machine 16. The warehouse entry and exit machine 16 descends, and the pallet fully loaded with lithium batteries of the same gear on the warehouse entry and exit machine 16 enters the conveyor line 1, and the conveyor line 1 transports the pallet forward.

[0072] When the barcode scanner 4 19 identifies the tray full of lithium batteries of the same gear, the pneumatic stopper 4 18 is lifted to stop the tray on the conveyor 3 17, and then the lifting positioning member 3 is lifted to position the tray. The grabbing mechanism 2 20 grabs the lithium batteries on the tray in turn and transfers them to the encapsulation process for encapsulation.

[0073] After all the lithium batteries in the pallet are taken away, the barcode scanning gun 4 19 recognizes that the pallet is an empty pallet, the lifting positioning part 3 and the pneumatic stop part 4 18 descend, and the conveyor line 1 transports the empty pallet forward to the interlayer elevator 12 at its discharge end, and the interlayer elevator 22 descends and transports the empty pallet to the conveyor line 3 21, and the conveyor line 3 21 transports the empty pallet forward to the in-and-out warehouse machine 16, and the stacker 15 forks the empty pallet on the in-and-out warehouse machine 16 and stores it in the finished product warehouse 14, and the stacker 15 sends the storage location information of the empty pallet to the background controller, and the background controller records the storage location information of the empty pallet.

[0074] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lithium battery automatic grading device, characterized in that: It includes: Conveyor line 1, a loading station, a plurality of grading stations, and a unloading station are sequentially arranged along the conveying direction of conveyor line 1; A loading mechanism, which is arranged at the loading station and is used to load a tray fully loaded with lithium batteries of different gears to the conveyor line 1; A plurality of grading mechanisms, each of which is respectively arranged at a plurality of the grading stations, and each grading mechanism is used to transfer lithium batteries of the same grading position on a tray to the same tray and to transfer a tray fully loaded with lithium batteries of the same grading position to a conveyor line 1; and The unloading mechanism is arranged at the unloading station and is used to transfer the lithium batteries at the same level on the tray to the next process.

2. The automatic grading device for lithium batteries according to claim 1, characterized in that: The conveyor line 1 adopts a roller conveyor line, and the grading mechanism includes a conveyor platform 1, a lifting and moving part 1, a pneumatic stop part 1, a plurality of conveyor lines 2, a plurality of conveyor platforms 2 and a grabbing mechanism 1; wherein: The conveying platform 1 is arranged on one side of the conveying line 1; The lifting and transferring member 1 is arranged between the rollers of the conveyor line 1 and is used to realize the transfer of the pallet between the conveyor line 1 and the conveyor platform 1; The pneumatic stopper is arranged between the rollers of the conveyor line and is located downstream of the lifting and moving part. The pneumatic stopper is used to stop the pallet on the conveyor line on the lifting and moving part. Each conveyor platform 2 is used to place a pallet, and the pallets on different conveyor platforms 2 are used to place lithium batteries of different gears; The first grabbing mechanism is used to transfer the lithium batteries in the tray on the first conveyor to the trays of each conveyor second, and the lithium batteries in the same tray have the same gear position; Each conveyor line 2 is connected to a conveyor platform 2, and the conveyor line 2 is used to receive a pallet fully loaded with lithium batteries of the same gear conveyed by the conveyor platform 2 and convey the pallet to the conveyor line 1.

3. The automatic grading device for lithium batteries according to claim 2, characterized in that: The grading mechanism also includes a plurality of lifting and moving parts 2, a plurality of pneumatic stop parts 2, a plurality of lifting and moving parts 3 and a plurality of pneumatic stop parts 3; a lifting and moving part 2 is provided at the joint between the conveyor line 2 and each conveyor platform 2, and when the lifting and moving part 2 is in the lifting state, the conveying surface height of the lifting and moving part 2 is the same as the conveying surface height of the corresponding conveyor platform 2 and is used to receive the pallet conveyed by the conveyor platform 2; a pneumatic stop part 2 is provided downstream of each lifting and moving part 2; a plurality of lifting and moving parts 2 are provided; Three intervals are arranged between the rollers of conveyor line one, and a plurality of lifting and transferring parts three are respectively arranged in one-to-one correspondence with a plurality of conveyor lines two. When the lifting and transferring parts two are in a lifting state, the conveying surface of the lifting and transferring parts three is at the same height as the conveying surface of the corresponding conveyor line two and is used to receive the pallet conveyed by the conveyor line two; a plurality of pneumatic stop parts three are arranged between the rollers of conveyor line one, and a pneumatic stop part three is arranged upstream of each lifting and transferring part three, and the pneumatic stop part three is used to stop the pallet on the conveyor line one.

4. The automatic grading device for lithium batteries according to claim 2, characterized in that: Both conveyor platform 1 and conveyor platform 2 use roller conveyor lines. A lifting positioning member 1 for lifting and positioning the pallet is arranged between the rollers of conveyor platform 1, and a lifting positioning member 2 for lifting and positioning the pallet is arranged between the rollers of each conveyor platform 2.

5. The automatic grading device for lithium batteries according to claim 3, characterized in that: The grading mechanism also includes a barcode scanning gun 1, multiple barcode scanning guns 2 and several barcode scanning guns 3; the barcode scanning gun 1 is arranged on one side of the lifting and transferring part 1 and is used to scan and identify the pallets on the lifting and transferring part 1; multiple barcode scanning guns 2 are respectively arranged on one side of multiple conveying platforms 2 and are respectively used to scan and identify the pallets on multiple conveying platforms 2; several barcode scanning guns 3 are respectively arranged on one side of several lifting and transferring parts 3 and are respectively used to scan and identify the pallets on several lifting and transferring parts 3.

6. The automatic grading device for lithium batteries according to claim 2, characterized in that: The loading mechanism includes a finished product warehouse, a stacker and an in-and-out machine; the finished product warehouse stores multiple pallets and each pallet is fully loaded with lithium batteries of different gears; the stacker is used to fork the pallets in the finished product warehouse and transfer them to the in-and-out machine, and the in-and-out machine transfers the pallets to conveyor line one.

7. The automatic grading device for lithium batteries according to claim 1, characterized in that: The unloading mechanism includes a conveyor platform three, a pneumatic stop component four, a barcode scanner four and a gripping mechanism two; the conveyor platform three is arranged between the rollers of the conveyor line one and is provided with a lifting positioning component three for positioning the pallet; the pneumatic stop component four is arranged between the rollers of the conveyor line one and is located downstream of the conveyor platform three, and the pneumatic stop component four is used to stop the pallet on the conveyor line one on the conveyor platform three; the barcode scanner four is arranged on one side of the conveyor platform three and is used to scan and identify the pallet on the conveyor platform three; the gripping mechanism two is used to transfer the lithium batteries of the same gear in the pallet on the conveyor platform three to the next process.

8. The automatic grading device for lithium batteries according to claim 6, characterized in that: The automatic grading device for lithium batteries also includes a conveyor line three and an interlayer elevator one; the conveyor line three is arranged below the conveyor line one and its conveying direction is opposite to that of the conveyor line one; the interlayer elevator one is arranged at the discharge end of the conveyor line one and conveys the pallets at the discharge end of the conveyor line one to the conveyor line three; the in-and-out warehouse machine is also used to receive the pallets at the discharge end of the conveyor line three, and the stacker is also used to fork out the pallets on the in-and-out warehouse machine and store the pallets in the finished product warehouse.

9. The automatic grading device for lithium batteries according to claim 8, characterized in that: The conveyor line 3 adopts a roller conveyor line; each grading mechanism also includes a plurality of conveyor lines 4, a plurality of lifting and transferring parts 4, a plurality of pneumatic stop parts 5 and a plurality of inter-layer elevators 2; a plurality of conveyor lines 4 are respectively arranged below a plurality of conveyor lines 2 and the conveying direction of the conveyor lines 4 is opposite to the conveying direction of the conveyor lines 2; a plurality of lifting and transferring parts 4 are arranged at intervals between the rollers of the conveyor line 3 and a plurality of lifting and transferring parts 3 are respectively arranged in a one-to-one correspondence with a plurality of conveyor lines 4. When the lifting and transferring parts 4 are in the lifting state, the lifting and transferring parts The conveying surface height of conveyor line four is the same as that of the corresponding conveying surface of conveyor line four and is used to convey the pallets on conveyor line three to the corresponding conveyor line four; a number of pneumatic stoppers five are arranged at intervals between the rollers of conveyor line three and a pneumatic stopper five is arranged downstream of each lifting and transferring component four, and the pneumatic stopper five is used to stop the pallets on conveyor line three on the lifting and transferring component four; a number of inter-layer elevators two are respectively arranged at the discharge ends of a number of conveyor lines four and are used to convey the pallets on conveyor line four to the conveyor line two above conveyor line four.

10. The automatic grading device for lithium batteries according to claim 9, characterized in that: The grading mechanism also includes a plurality of barcode scanning guns five, which are respectively arranged on one side of a plurality of lifting and transferring parts four and are respectively used to scan and identify the pallets on the lifting and transferring parts four.

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