CN115799654B - Lithium battery cutting and stacking device - Google Patents
Lithium battery cutting and stacking device Download PDFInfo
- Publication number
- CN115799654B CN115799654B CN202211498807.3A CN202211498807A CN115799654B CN 115799654 B CN115799654 B CN 115799654B CN 202211498807 A CN202211498807 A CN 202211498807A CN 115799654 B CN115799654 B CN 115799654B
- Authority
- CN
- China
- Prior art keywords
- cutting
- pole piece
- clamping mechanism
- control system
- central control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 219
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 152
- 238000001514 detection method Methods 0.000 claims abstract description 99
- 238000003475 lamination Methods 0.000 claims abstract description 89
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 239000000872 buffer Substances 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 238000012797 qualification Methods 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of battery processing, in particular to a lithium battery cutting and stacking device which comprises a lamination table, a first driving roller, a second driving roller, a first cutting and clamping mechanism, a second cutting and clamping mechanism, a diaphragm swinging roller, a diaphragm buffer roller mechanism, a first detection device, a second detection device and a central control system. According to the invention, by arranging the left-right opposite-inserting type lamination of the two sets of mechanisms, when the pole piece is placed on one side, the pole piece is cut on the other side, so that the arrangement of pole piece transfer in a conventional product is omitted, the diaphragm on the diaphragm swinging roller can be pushed in the reciprocating operation of the first cutting clamping mechanism and the second cutting clamping mechanism, the running speed of the driving roller is regulated by detecting the slice length in the running process of the device, manual regulation and control are not needed, the early-stage debugging time of equipment operation is shortened, and the production efficiency of the equipment is accelerated; when the device operates, the travel of the cutting and clamping mechanism is adjusted according to the stacking condition of the pole pieces, and the qualification rate of products is improved.
Description
Technical Field
The invention relates to the technical field of battery processing, in particular to a lithium battery cutting and stacking device.
Background
At present, a plurality of lamination station designs (commonly called two-cutting three-stacking or two-cutting four-stacking) are adopted for the lithium battery bare cell forming procedure cutting and stacking all-in-one machine, so that the defects of large occupied space of equipment, high manufacturing cost, complex structure, low utilization rate and the like are caused. In addition: the production process of the conventional Z-shaped cutting and stacking integrated machine requires a plurality of sections of belts to convey products, and the belts are easy to pollute and difficult to clean due to long-term cyclic utilization and long-time product contact on the surfaces, so that product damage and secondary pollution are easy to cause in the product conveying process.
The production process of the conventional Z-shaped cutting and stacking integrated machine needs a plurality of groups of mechanical transportation, products are corrected and positioned by adopting X, Y and theta platforms, the products are easy to damage and secondary pollution due to frequent transportation, a plurality of groups of mechanical arms transport alternately, accumulated errors exist among mechanical structures, and the product precision is reduced or uncontrollable.
Chinese patent publication No. CN107768730a discloses a lithium battery pole piece lamination device, a plurality of equally spaced film box baffles are arranged on a pole piece box, and battery pole pieces are inserted between the film box baffles; the pole piece grabbing mechanical arm is connected with the lifting device, the lifting device is connected with the transverse moving device, and the transverse moving device is arranged on the frame; the two side edges of the diaphragm bracket are provided with bracket grooves; the plurality of diaphragm struts are arranged, one end of each diaphragm strut penetrates through the corresponding bracket groove and is connected with the corresponding diaphragm strut positioning device, and the corresponding diaphragm strut positioning device is movably connected with the corresponding diaphragm tightening device; the diaphragm is alternately tightened at the other end of the diaphragm support rod to form a Z shape, so that a plurality of pole piece grooves are formed; the electric core grabbing mechanical arm is connected with the joint mechanical arm; the frame, the diaphragm tightening device and the joint mechanical arm are all fixed on the base; the pole piece box is movably arranged on the base.
The conventional Z-shaped cutting and stacking all-in-one machine is limited by efficiency, the size of equipment is increased due to the fact that multi-station segmentation design is needed, the failure rate of the equipment is increased due to multi-station stacking, and meanwhile the operation efficiency of the equipment is reduced.
Disclosure of Invention
Therefore, the invention provides a lithium battery cutting and stacking device which is used for solving the problems of low production efficiency caused by equipment faults due to more working procedures and easiness in occurrence of equipment faults of the lithium battery cutting and stacking device in the prior art.
In order to achieve the above object, the present invention provides a lithium battery cutting and stacking device, comprising,
the lamination platforms are used for accommodating the stacked battery pole pieces, and a plurality of lamination platforms are arranged and alternately work for carrying and conveying the battery pole pieces;
the driving rollers are divided into a first driving roller and a second driving roller, and are respectively arranged at the left side and the right side of the lamination table, wherein the first driving roller is positioned at the left side of the lamination table and is used for conveying the negative pole piece, and the second driving roller is positioned at the right side of the lamination table and is used for conveying the positive pole piece;
the cutting clamping mechanism is used for cutting, clamping and conveying the battery pole piece conveyed by the driving roller and is divided into a first cutting clamping mechanism and a second cutting clamping mechanism, the first cutting clamping mechanism is used for cutting the negative pole piece and clamping and conveying the cut pole piece, and the second cutting clamping mechanism is used for cutting the positive pole piece and clamping and conveying the cut pole piece; the cutting and clamping mechanism can convey the cut battery pole pieces to the lamination table;
The diaphragm swinging roller is arranged above the lamination table and is used for coating the battery pole piece on the lamination table, and the diaphragm swinging roller can swing left and right;
the diaphragm buffer roller mechanism is used for buffering and adjusting the film covered on the diaphragm swinging roller, and increasing the buffer effect of the diaphragm swinging roller for driving the film covered to move;
the detection device is arranged above the cutting clamping mechanism and is used for detecting the cutting condition and the stacking condition of the battery pole pieces, the detection device is divided into a first detection device and a second detection device, the first detection device is used for detecting the cutting condition of the negative pole pieces, and the second detection device is used for detecting the cutting condition of the positive pole pieces;
the central control system is respectively connected with the driving roller, the cutting clamping mechanisms, the diaphragm swinging rollers, the lamination platforms and the detection devices and controls the operation of all the components; when the lithium battery cutting and stacking device operates, a layer of bottom film is paved on the lamination table by the diaphragm swinging roller, the first cutting and clamping mechanism cuts the negative pole piece and clamps and conveys the cut pole piece to the bottom film on the lamination table, the first cutting and clamping mechanism retreats, and the diaphragm swinging roller and the first cutting and clamping mechanism move in the same direction to cover the negative pole piece while the first cutting and clamping mechanism conveys the negative pole piece; in the process of retreating the first cutting and clamping mechanism, the second cutting and clamping mechanism cuts the positive pole piece and clamps and conveys the cut pole piece to a diaphragm on the negative pole piece on the lamination table, and meanwhile, the diaphragm swinging roller and the second cutting and clamping mechanism move in the same direction to cover the positive pole piece; the first cutting clamping mechanism and the second cutting clamping mechanism alternately operate, cut pole pieces are clamped and conveyed to the lamination table, the diaphragm swinging roller moves in a Z-shaped reciprocating mode along with the operation of the first cutting clamping mechanism and the second cutting clamping mechanism until the number of stacked pole pieces meets the requirement, the central control system controls the lamination table to alternately operate, and the stacked battery pole pieces are transported; the central control system judges the electrode slice length detected by the first detection device and the second detection device, adjusts the running speed of the driving roller, and adjusts the movement stroke of the cutting and clamping mechanism according to the slice stacking condition detected by the first detection device and the second detection device so as to ensure the processing speed of battery cutting and stacking.
Further, an electrode slice standard length Lz is arranged in the central control system, when the lithium battery cutting and stacking device operates, the first detection device detects the length of the electrode slice cut by the first cutting and clamping mechanism in real time, and the second detection device detects the length of the electrode slice cut by the second cutting and clamping mechanism in real time and transmits the detected result to the central control system;
the central control system is internally provided with a pole piece length deviation value Lp, the ith detection device detects that the length of the cut pole piece is L, i is one of the first and second pole pieces, the central control system calculates the absolute value Lq of the difference value between the length of the cut pole piece L and the standard length Lz of the electrode slice, lq= -Lz-L|, the central control system compares the absolute value Lq of the difference value with the pole piece length deviation value Lp,
when Lq is less than or equal to Lp, the central control system judges that the length of the cut pole piece is within a reasonable range;
when Lq is larger than Lp, the central control system judges that the length of the cut pole piece is not in a reasonable range, and the central control system adjusts the rotating speed of the ith driving roller.
Further, the initial running speed of the ith driving roller is V, when Lq is greater than Lp and Lz is greater than L, the central control system determines that the length of the pole piece cut by the ith cutting and clamping mechanism is shorter than the required length, and the central control system increases the rotating speed of the ith driving roller, and the adjusted rotating speed is V ', V' =v+lq×a1, wherein a1 is an acceleration adjustment parameter of the absolute value of the difference value to the driving roller.
Further, the initial running speed of the ith driving roller is V, when Lq is greater than Lp and Lz is less than L, the central control system determines that the length of the pole piece cut by the ith cutting and clamping mechanism is longer than the required length, the central control system reduces the rotating speed of the ith driving roller, the adjusted rotating speed is V ', V' =v-lq×a2, and a2 is a speed reduction adjustment parameter of the absolute value of the difference value to the driving roller.
The ith detection device continuously detects the length L 'of the cut pole piece, calculates the absolute value Lq' of the difference value between the length L 'of the pole piece and the standard length Lz of the electrode slice, and when Lq' is less than or equal to Lp, the central control system controls the lamination table to alternate and eliminates the pole piece with the unqualified length.
Further, when the length of the pole piece cut by the first cutting and clamping mechanism and the length of the pole piece cut by the second cutting and clamping mechanism are in a reasonable range, the first detection device and the second detection device detect the stacking state of the pole piece on the lamination table;
the lithium battery cutting and stacking device can be used for carrying out single-piece stacking and multi-piece stacking, and when single-piece stacking is carried out, the first detection device and the second detection device detect the vertical overlap ratio of the stacked battery pole pieces; when a plurality of stacked battery pole pieces are carried out, the first detection device and the second detection device detect the horizontal distance between the battery pole pieces to be stacked, and then detect the vertical overlap ratio of the battery pole pieces to be stacked.
Further, when the lithium battery cutting and stacking device performs single-sheet stacking, the first detection device and the second detection device detect the vertical overlap ratio C of the stacked battery pole pieces and transmit the detection result to the central control system, the central control system is internally provided with an overlap ratio evaluation value Cz, the central control system compares the overlap ratio evaluation value Cz with the overlap ratio C,
and when C is less than or equal to Cz, the central control system judges that the overlap ratio of the battery pole pieces reaches the standard, and the central control system controls the lithium battery cutting and stacking device to carry out continuous slice stacking production.
When C is larger than Cz, the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, and the central control system controls the cutting and clamping mechanism to adjust the running stroke so as to ensure the overlap ratio of the battery pole pieces.
Further, a standard distance Dz1 from the left edge of the negative pole piece to the left edge of the stacking table and a standard distance Dz2 from the left edge of the right pole piece to the right edge of the stacking table are arranged in the central control system;
when the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, the first detection device detects the distance D1 from the left edge of the negative pole piece on the lamination table to the left edge of the stacking table, the second detection device detects the distance D2 from the right edge of the positive pole piece on the lamination table to the right edge of the stacking table, the central control system calculates a negative pole piece position offset value P1 and a positive pole piece position offset value P2 respectively, P1= -D1-Dz 1-l, P2= -D2-Dz 2-l, the central control system compares the negative pole piece position offset value P1 with the positive pole piece position offset value P2,
When P1 is more than P2, the central control system judges that the deviation position of the negative pole piece is larger than that of the positive pole piece, and the central control system adjusts the movement stroke of the first cutting clamping mechanism by taking the right edge position of the positive pole piece as a datum point;
when P1 is less than P2, the central control system judges that the deviation position of the negative pole piece is smaller than that of the positive pole piece, and the central control system adjusts the movement stroke of the second cutting and clamping mechanism by taking the left edge position of the negative pole piece as a datum point.
Further, when the lithium battery cutting and stacking device performs multi-sheet stacking, the first detection device detects the horizontal distance K1 between the negative electrode sheets, the second detection device detects the horizontal distance K2 between the positive electrode sheets, and the central control system adjusts the first cutting clamping mechanism and the second cutting clamping mechanism according to the horizontal distance K1 and the horizontal distance K2, so that the horizontal distance between the negative electrode sheets is ensured to be the same as the horizontal distance between the positive electrode sheets.
Further, when the horizontal distance between the negative pole pieces is the same as the horizontal distance between the positive pole pieces, the first detection device and the second detection device detect the vertical direction contact ratio of the stacked battery pole pieces, the central control system judges the contact ratio, when the central control system judges that the contact ratio of the battery pole pieces does not reach the standard, the first detection device detects the distance value from the left edge of the leftmost negative pole piece on the lamination table to the left edge of the stacking table, the second detection device detects the distance value from the right edge of the rightmost positive pole piece on the lamination table to the right edge of the stacking table, and the travel of the first cutting clamping mechanism or the second cutting clamping mechanism is adjusted according to each distance value, so that the contact ratio of the battery pole pieces reaches the standard.
Further, the cutting clamping mechanism comprises a cutting unit and a clamping unit, the cutting unit is used for cutting the battery pole pieces, and the clamping unit is used for clamping and conveying the cut pole pieces to the lamination table.
Compared with the prior art, the invention has the beneficial effects that the left and right opposite inserting type lamination of the two sets of mechanisms are arranged, so that the occupied space of equipment is saved, meanwhile, in the reciprocating operation of the first cutting clamping mechanism and the second cutting clamping mechanism, the diaphragm on the diaphragm swinging roller can be pushed, a diaphragm pulling device is not needed, a working unit is saved, in the operation process of the device, the operation speed of the driving roller is adjusted through the detection of the slice length, the manual regulation and control are not needed, the early-stage operation debugging time of the equipment is shortened, and the production efficiency of the equipment is accelerated; when the device operates, the travel of the cutting and clamping mechanism can be adjusted according to the stacking condition of the pole pieces, and the qualification rate of products is improved.
In particular, by arranging the left and right opposite-inserting type lamination of the two sets of mechanisms, when the pole piece is placed on one side, the pole piece is cut on the other side, so that the arrangement of the pole piece box in a conventional product is omitted, the battery pole pieces can be directly cut and stacked, stations are reduced, and the production efficiency of the product is accelerated. In the running process of the device, the running speed of the driving roller is regulated through detecting the slice length, manual regulation and control are not needed, the early-stage debugging time of equipment running is shortened, and the production efficiency of the equipment is accelerated.
In particular, through detecting the vertical direction contact ratio of the stacked battery pole pieces, the running stroke of the cutting and clamping mechanism is adjusted, and the qualification rate of products is improved.
Especially, when the positive electrode plate and the negative electrode plate are all in ideal positions, the battery plate overlap ratio is 1, and when the battery plate overlap ratio does not reach the standard, the positions of the positive electrode plate and the negative electrode plate are detected respectively, and the standard positions are redetermined by taking one side electrode plate with smaller deviation positions as a reference, when the stroke of the cutting clamping mechanism is adjusted, the other side is adjusted by taking one side as the reference, only a single-side original is adjusted, the adjusting stability is improved, the probability of failure occurrence is prevented, and the production efficiency is accelerated by the side.
Drawings
Fig. 1 is a schematic structural diagram of a lithium battery stacking device according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a lithium battery cutting and stacking device according to an embodiment of the present invention;
fig. 3 is a schematic structural perspective view of a lithium battery stacking device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a cutting unit according to an embodiment of the present invention;
fig. 5 is a schematic view of a clip according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a lithium battery stacking device according to an embodiment of the present invention, and fig. 2 is a partial enlarged view of the lithium battery stacking device according to an embodiment of the present invention; fig. 3 is a schematic structural perspective view of a lithium battery stacking device according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a cutting unit according to an embodiment of the present invention; fig. 5 is a schematic view of a clip according to an embodiment of the present invention.
The invention discloses a lithium battery cutting and stacking device, which comprises,
the lamination platforms 4 are used for accommodating the stacked battery pole pieces, and a plurality of lamination platforms 4 are arranged and alternately work for carrying and conveying the battery pole pieces;
the driving rollers are used for conveying the battery pole pieces and are divided into a first driving roller 1 and a second driving roller 7, and are respectively arranged on the left side and the right side of the lamination table 4, wherein the first driving roller 1 is positioned on the left side of the lamination table 4 and is used for conveying the negative pole pieces, and the second driving roller 7 is positioned on the right side of the lamination table 4 and is used for conveying the positive pole pieces;
the cutting clamping mechanism is used for cutting, clamping and conveying the battery pole piece conveyed by the driving roller and is divided into a first cutting clamping mechanism 2 and a second cutting clamping mechanism 6, the first cutting clamping mechanism 2 is used for cutting the negative pole piece and clamping and conveying the cut pole piece, and the second cutting clamping mechanism 6 is used for cutting the positive pole piece and clamping and conveying the cut pole piece; the cutting and clamping mechanism can convey the cut battery pole pieces to the lamination table 4;
A diaphragm swinging roller 9, which is arranged above the lamination table 4 and is used for coating the battery pole piece on the lamination table 4, and the diaphragm swinging roller 9 can swing left and right;
the diaphragm buffer roller mechanism 10 is used for buffering and adjusting the film covered on the diaphragm swing roller 9, increasing the buffer effect of the diaphragm swing roller driving the film covered to move, and the diaphragm buffer roller mechanism 10 is provided with a floating roller 101 and a diaphragm linear buffer 102, when the diaphragm swing roller 9 moves left and right, the position of the floating roller 101 is changed, and the diaphragm linear buffer 102 is matched, so that the tension of the film on the diaphragm swing roller 9 is stable;
the detection device is arranged above the cutting clamping mechanism and is used for detecting the cutting condition and the stacking condition of the battery pole pieces, the detection device is divided into a first detection device 3 and a second detection device 5, the first detection device 3 is used for detecting the cutting condition of the negative pole pieces, and the second detection device 5 is used for detecting the cutting condition of the positive pole pieces;
the central control system is respectively connected with the driving roller, the cutting clamping mechanisms, the diaphragm swinging rollers, the lamination platforms and the detection devices and controls the operation of all the components; when the lithium battery cutting and stacking device operates, a layer of bottom film is paved on the lamination table by the diaphragm swinging roller, the first cutting and clamping mechanism cuts the negative pole piece and clamps and conveys the cut pole piece to the bottom film on the lamination table, the first cutting and clamping mechanism retreats, and the diaphragm swinging roller and the first cutting and clamping mechanism move in the same direction to cover the negative pole piece while the first cutting and clamping mechanism conveys the negative pole piece; in the process of retreating the first cutting and clamping mechanism, the second cutting and clamping mechanism cuts the positive pole piece and clamps and conveys the cut pole piece to a film above the negative pole piece on the lamination table, and meanwhile, the diaphragm swinging roller and the second cutting and clamping mechanism move in the same direction to cover the positive pole piece; the first cutting clamping mechanism and the second cutting clamping mechanism alternately operate, cut pole pieces are clamped and conveyed to the lamination table, the diaphragm swinging roller moves in a Z-shaped reciprocating mode along with the operation of the first cutting clamping mechanism and the second cutting clamping mechanism until the number of stacked pole pieces meets the requirement, the central control system controls the lamination table to alternately operate, and the stacked battery pole pieces are transported; the central control system judges the electrode slice length detected by the first detection device and the second detection device, adjusts the running speed of the driving roller, and adjusts the movement stroke of the cutting and clamping mechanism according to the slice stacking condition detected by the first detection device and the second detection device so as to ensure the processing speed of battery cutting and stacking.
In this embodiment, two lamination stations are provided, each of which is provided with a set of diaphragm oscillating rollers, and waiting is not required when the lamination stations alternate.
According to the invention, by arranging the left and right opposite-inserting type lamination of the two sets of mechanisms, the occupied space of equipment is saved, meanwhile, in the reciprocating operation of the first cutting clamping mechanism and the second cutting clamping mechanism, the diaphragm on the diaphragm swinging roller can be pushed, a diaphragm pulling device is not needed, the working unit is saved, in the operation process of the device, the operation speed of the driving roller is adjusted by detecting the slice length, manual regulation and control are not needed, the early-stage debugging time of the operation of the equipment is shortened, and the production efficiency of the equipment is accelerated; when the device operates, the travel of the cutting and clamping mechanism can be adjusted according to the stacking condition of the pole pieces, and the qualification rate of products is improved.
When the lithium battery cutting and stacking device operates, a layer of bottom film is paved on the lamination table 4 by the diaphragm swinging roller 9, the first cutting and clamping mechanism 2 cuts a negative pole piece and clamps and conveys the cut pole piece to the bottom film on the lamination table 4, the first cutting and clamping mechanism 2 retreats, the diaphragm swinging roller 9 coats the negative pole piece, meanwhile, the second cutting and clamping mechanism 6 cuts a positive pole piece and clamps and conveys the cut pole piece to the negative pole piece on the lamination table 4, and then the diaphragm swinging roller 9 coats the negative pole piece; the first cutting clamping mechanism 2 and the second cutting clamping mechanism 6 alternately operate to clamp and convey the cut pole pieces to the lamination table 4, the diaphragm swinging roller 9 reciprocates in a Z shape along with the operation of the first cutting clamping mechanism 2 and the second cutting clamping mechanism 6 until the number of stacked pole pieces meets the requirement, and the central control system controls the lamination table 4 to alternately operate to convey the stacked battery pole pieces;
The electrode slice standard length Lz is arranged in the central control system, when the lithium battery cutting and stacking device operates, the first detection device 3 detects the length of the electrode slice cut by the first cutting and clamping mechanism 2 in real time, the second detection device 5 detects the length of the electrode slice cut by the second cutting and clamping mechanism 6 in real time, and the detected result is transmitted to the central control system;
the central control system is internally provided with a pole piece length deviation value Lp, the ith detection device detects that the length of the cut pole piece is L, i is one of the first and second pole pieces, the central control system calculates the absolute value Lq of the difference value between the length of the cut pole piece L and the standard length Lz of the electrode slice, lq= -Lz-L|, the central control system compares the absolute value Lq of the difference value with the pole piece length deviation value Lp,
when Lq is less than or equal to Lp, the central control system judges that the length of the cut pole piece is within a reasonable range;
when Lq is larger than Lp, the central control system judges that the length of the cut pole piece is not in a reasonable range, and the central control system adjusts the rotating speed of the ith driving roller.
According to the invention, by arranging the left-right opposite-inserting type lamination of the two sets of mechanisms, when the pole piece is placed on one side, the pole piece is cut on the other side, so that the arrangement of the pole piece box in a conventional product is omitted, the battery pole piece can be directly cut and stacked, the stations are reduced, and the production efficiency of the product is accelerated.
When Lq is more than Lp and Lz is more than L, the central control system judges that the length of the pole piece cut by the ith cutting and clamping mechanism is shorter than the required length, the central control system increases the rotating speed of the ith driving roller, the adjusted rotating speed is V ', V' =V+Lq×a1, and a1 is the acceleration adjustment parameter of the absolute value of the difference value to the driving roller.
When Lq is larger than Lp and Lz is smaller than L, the central control system judges that the length of the pole piece cut by the ith cutting and clamping mechanism is longer than the required length, the central control system reduces the rotating speed of the ith driving roller, the adjusted rotating speed is V ', V' =V-Lq×a2, and a2 is the absolute value of the difference value and is a deceleration adjustment parameter of the driving roller.
In the running process of the device, the running speed of the driving roller is regulated through detecting the slice length, manual regulation and control are not needed, the early-stage debugging time of equipment running is shortened, and the production efficiency of the equipment is accelerated.
To the person skilled in the art, it should be known that adjusting the slice length by adjusting the running speed of the driving roller is a way of adjusting the slice length, and the person skilled in the art can also adjust the slice length by adjusting the travel of the ith cutting clamping mechanism and the cutting frequency, and one side of the driving roller is provided with a positioning camera, so that the conveying length of the diaphragm can be monitored, and the cutting length of the pole piece is ensured to be within a reasonable range.
When the length of the pole piece cut by the first cutting and clamping mechanism 2 and the length of the pole piece cut by the second cutting and clamping mechanism 6 are in a reasonable range, the first detection device 3 and the second detection device 5 detect the stacking state of the pole piece on the lamination table 4;
the lithium battery cutting and stacking device can perform single-chip stacking and multi-chip stacking, and when single-chip stacking is performed, the first detecting device 3 and the second detecting device 5 detect the vertical overlap ratio of the stacked battery pole pieces; when a plurality of stacked battery pole pieces are stacked, the first detecting device 3 and the second detecting device 5 detect the horizontal distance between the battery pole pieces stacked, and then detect the vertical overlap ratio of the battery pole pieces stacked.
And the running stroke of the cutting and clamping mechanism is regulated by detecting the vertical overlap ratio of the stacked battery pole pieces, so that the qualification rate of products is improved.
When the lithium battery cutting and stacking device performs single-sheet stacking, the first detection device 3 and the second detection device 5 detect the vertical overlap ratio C of the stacked battery pole pieces and transmit the detection result to the central control system, the central control system is internally provided with an overlap ratio evaluation value Cz, the central control system compares the overlap ratio evaluation value Cz with the overlap ratio C,
And when C is less than or equal to Cz, the central control system judges that the overlap ratio of the battery pole pieces reaches the standard, and the central control system controls the lithium battery cutting and stacking device to carry out continuous slice stacking production.
When C is larger than Cz, the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, and the central control system controls the cutting and clamping mechanism to adjust the running stroke so as to ensure the overlap ratio of the battery pole pieces.
The standard distance Dz1 from the left edge of the negative pole piece to the left edge of the stacking table and the standard distance Dz2 from the left edge of the right pole piece to the right edge of the stacking table are arranged in the central control system;
when the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, the first detection device 3 detects the distance D1 from the left edge of the negative pole piece on the lamination table 4 to the left edge of the lamination table, the second detection device 5 detects the distance D2 from the right edge of the positive pole piece on the lamination table 4 to the right edge of the lamination table, the central control system calculates a negative pole piece position offset value P1 and a positive pole piece position offset value P2 respectively, wherein P1= -D1-Dz 1 | and P2= -D2-Dz 2|, the central control system compares the negative pole piece position offset value P1 with the positive pole piece position offset value P2,
when P1 is more than P2, the central control system judges that the deviation position of the negative pole piece is larger than that of the positive pole piece, and the central control system adjusts the movement stroke of the first cutting clamping mechanism 2 by taking the right edge position of the positive pole piece as a datum point;
When P1 is less than P2, the central control system judges that the deviation position of the negative pole piece is smaller than that of the positive pole piece, and the central control system adjusts the movement stroke of the second cutting and clamping mechanism 6 by taking the left edge position of the negative pole piece as a datum point.
When the positive electrode plate and the negative electrode plate are both at ideal positions, the overlap ratio of the battery electrode plate is 1, when the overlap ratio of the battery electrode plate does not reach the standard, the positions of the positive electrode plate and the negative electrode plate are detected respectively, the standard positions are redetermined by taking one side electrode plate with smaller deviation positions as a reference, when the stroke of the cutting clamping mechanism is regulated, the other side is regulated by taking one side as the reference, only a single-side original is regulated, the regulating stability is improved, the probability of faults is prevented, and the production efficiency is accelerated by the side.
In this embodiment, the overlap ratio evaluation value cz=0.98.
When P1 is more than P2, the original travel distance of the first cutting clamping mechanism 2 is Q1, and the adjusted travel distance is Q1'.
When D1 < Dz1 and D2 > Dz2, Q1' =q1+p1-P2;
when D1 < Dz1 and D2 < Dz2, Q1' =q1+p1+p2;
when D1 > Dz1 and D2 > Dz2, Q1' =q1—p1—p2;
when D1 > Dz1 and D2 < Dz2, Q1' =q1—p1+p2.
When P1 is smaller than P2, the original travel distance of the second cutting and clamping mechanism 6 is Q2, and the adjusted travel distance is Q2'.
When D1 < Dz1 and D2 > Dz2, Q2' =q2+p1-P2;
when D1 < Dz1 and D2 < Dz2, Q2' =q2+p1+p2;
when D1 > Dz1 and D2 > Dz2, Q2' =q2-P1-P2;
when D1 > Dz1 and D2 < Dz2, Q1' =q2—p1+p2.
When the lithium battery cutting and stacking device stacks a plurality of lithium batteries, the first detection device 3 detects the horizontal distance K1 between the negative pole pieces, the second detection device 5 detects the horizontal distance K2 between the positive pole pieces, and the central control system adjusts the first cutting clamping mechanism 2 and the second cutting clamping mechanism 6 according to the horizontal distance K1 and the horizontal distance K2, so that the horizontal distance between the negative pole pieces is ensured to be the same as the horizontal distance between the positive pole pieces.
When the horizontal distance between the negative pole pieces is the same as the horizontal distance between the positive pole pieces, the first detection device 3 and the second detection device 5 detect the vertical direction contact ratio of the stacked battery pole pieces, the central control system judges the contact ratio, when the central control system judges that the contact ratio of the battery pole pieces does not reach the standard, the first detection device 3 detects the distance value from the left edge of the leftmost negative pole piece on the lamination table 4 to the left edge of the lamination table, the second detection device 5 detects the distance value from the right edge of the rightmost positive pole piece on the lamination table 4 to the right edge of the lamination table, and adjusts the travel of the first cutting clamping mechanism 2 or the second cutting clamping mechanism 6 according to each distance value, so that the contact ratio of the battery pole pieces reaches the standard.
The cutting clamping mechanism comprises a cutting unit and a clamping unit, the cutting unit is used for cutting the battery pole piece, and the clamping unit is used for clamping and conveying the cut pole piece to the lamination table. And a pressing knife is further arranged on the lamination table and used for carrying out auxiliary tabletting.
It should be understood by those skilled in the art that the edge is adopted as a reference point, and the skilled person can determine the position of the alignment reference according to the actual requirement, for example, the center line is adopted to determine the processing reference, the center line of the lamination table is adopted as the initial reference line, when the center line is adopted as the processing reference, the first detection device and the second detection device detect the vertical overlap ratio C of the stacked battery pole pieces, and transmit the detection result to the central control system, the central control system is internally provided with an overlap ratio evaluation value Cz, the central control system compares the overlap ratio evaluation value Cz with the overlap ratio C, and when C is less than or equal to Cz, the central control system determines that the overlap ratio of the battery pole pieces meets the standard, and the central control system controls the lithium battery stacking device to perform continuous slice stacking production. When C is larger than Cz, the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, and the central control system controls the cutting and clamping mechanism to adjust the running stroke so as to ensure the overlap ratio of the battery pole pieces.
The first detection device detects the distance P1 from the central line of the negative pole piece to the datum line, the second detection device detects the distance P2 from the central line of the positive pole piece to the datum line, the central control system compares the P1 with the P2,
when P1 is less than P2, the central control system selects the central line of the negative pole piece as a new reference, and adjusts the stroke of the second cutting and clamping mechanism, wherein the original stroke distance of the second cutting and clamping mechanism is Q2, and the adjusted stroke distance is Q2':
when the negative pole piece is positioned at the left side of the original datum line, if the positive pole piece is positioned at the left side of the original datum line, Q2' =Q2-P2+P1; if the positive pole piece is positioned on the right side of the original datum line, Q2' =Q2+P2+P1;
when the negative pole piece is positioned on the right side of the original datum line, if the positive pole piece is positioned on the left side of the original datum line, Q2' =Q2-P2-P1; if the positive pole piece is positioned on the right side of the original datum line, Q2' =Q2+P2-P1;
when P1 is more than P2, the central control system selects the central line of the positive pole piece as a new reference, and adjusts the stroke of the first cutting clamping mechanism; the original travel distance of the first cutting clamping mechanism is Q1, and the adjusted travel distance is Q1':
when the positive pole piece is positioned at the left side of the original datum line, if the negative pole piece is positioned at the left side of the original datum line, Q1' =Q1-P2+P1; if the negative pole piece is positioned on the right side of the original datum line, Q1' =Q1-P2-P1;
When the positive pole piece is positioned on the right side of the original datum line, if the negative pole piece is positioned on the left side of the original datum line, Q1' =Q1+P2+P1; if the negative electrode piece is positioned on the right side of the original datum line, Q1' =Q1+P2-P1.
As an embodiment of the invention, the cutting unit and the chasing and clamping unit are fixedly arranged and cooperatively operate, and the cutting unit and the chasing and clamping unit operate together after cutting is completed; the driving 13 drives the cutting unit (lower cutter 11/upper cutter 12), the clamp (lower clamp 14/upper clamp 15), the cutter motor 16 and other structural members to do linear left-right driving, the effect is to catch up the pole piece in motion (feeding through driving roller driving), the cutter is driven by the cutter motor to move downwards (through eccentric wheel driving upper clamping jaw clamping pole piece) to cut the pole piece at constant speed, the whole set of mechanism drives the piece to the lamination table after cutting, after reaching the preset position, the pressing cutter presses down the fixed pole piece, then the cutter motor drives the upper cutter 11 and the upper clamping jaw 15 to open, and finally the linear driving 13 drives the whole set of mechanism to retract. The cutting unit and the clamping unit are controlled by the same motor, so that the equipment procedures are reduced, and the running stability of the equipment is improved. There are two modes of operation in this process, of which form one: the diaphragm swinging roller 9 swings correspondingly left and right at a corresponding speed according to the distance and speed conditions of the sheet feeding, and the diaphragm buffering mechanism 101 buffers the diaphragm according to the speed, distance and tension conditions; form two: the distance m1 between the left and right swinging parts of the diaphragm swinging roller 9, the distance n1 between the swinging parts of the lamination table 4 and the distance m1+n2=form one swinging distance, and the efficiency of the equipment is improved by reducing the movement distances of three movement mechanisms of the swinging roller 9, the lamination table 4 and the follow-up cutting drive 23.
As an embodiment of the invention, the cutting unit and the clip-following unit are arranged separately, the cutting unit is fixed after cutting is completed, and the clip-following unit clips the cut pole piece and conveys the pole piece to the lamination table; the first driving roller drives the pole piece to move forwards, and the cutter motor 16 in the cutting unit drives the upper cutter 12 to cut the pole piece; the clamp motor 15 drives the upper clamp 15 to move downwards to clamp the pole piece, then the lower clamp 14, the upper clamp 15 clamp motor 25 and the pole piece are driven by the drive 23 to send the pole piece to the lamination table, after the pole piece reaches a preset position, the pressing knife presses down the fixed pole piece, then the clamp motor drives the upper clamp 15 to open, and finally the linear drive 13 drives the whole clamp mechanism to retract. The cutting unit and the clamping unit are arranged separately, so that the volume of equipment for driving the pole piece to operate is reduced, the channel volume required by the operation of the component is further reduced, and the overall occupied space of the equipment is reduced. There are two modes of operation in this process, of which form one: the diaphragm swinging roller 9 swings correspondingly left and right at a corresponding speed according to the distance and speed conditions of the sheet feeding, and the diaphragm buffering mechanism 101 buffers the diaphragm according to the speed, distance and tension conditions; form two: the distance m1 between the left and right swinging parts of the diaphragm swinging roller 9, the distance n1 between the swinging parts of the lamination table 4 and the distance m1+n2=form one, and the efficiency of the equipment is improved by reducing the movement distances of three movement mechanisms of the swinging roller 9, the lamination table 4 and the film feeding drive 23.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it will be readily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments (e.g. combination of multiple sets of mechanisms, variation of the number of certain mechanisms therein, or stacking several pieces at a time under the same or similar principle). Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (8)
1. A lithium battery cutting and stacking device is characterized by comprising,
the lamination platforms are used for accommodating the stacked battery pole pieces, and a plurality of lamination platforms are arranged and alternately work for carrying and conveying the battery pole pieces;
the driving rollers are divided into a first driving roller and a second driving roller, and are respectively arranged at the left side and the right side of the lamination table, wherein the first driving roller is positioned at the left side of the lamination table and is used for conveying the negative pole piece, and the second driving roller is positioned at the right side of the lamination table and is used for conveying the positive pole piece;
The cutting clamping mechanism is used for cutting, clamping and conveying the battery pole piece conveyed by the driving roller and is divided into a first cutting clamping mechanism and a second cutting clamping mechanism, the first cutting clamping mechanism is used for cutting the negative pole piece and clamping and conveying the cut pole piece, and the second cutting clamping mechanism is used for cutting the positive pole piece and clamping and conveying the cut pole piece; the cutting and clamping mechanism can convey the cut battery pole pieces to the lamination table;
the diaphragm swinging roller is arranged above the lamination table and is used for coating the battery pole piece on the lamination table, and the diaphragm swinging roller can swing left and right;
the detection device is arranged above the cutting clamping mechanism and is used for detecting the cutting condition and the stacking condition of the battery pole pieces, the detection device is divided into a first detection device and a second detection device, the first detection device is used for detecting the cutting condition of the negative pole pieces, and the second detection device is used for detecting the cutting condition of the positive pole pieces;
the central control system is respectively connected with the driving roller, the cutting clamping mechanisms, the diaphragm swinging rollers, the lamination platforms and the detection devices and controls the operation of all the components; when the lithium battery cutting and stacking device operates, a layer of bottom film is paved on the lamination table by the diaphragm swinging roller, the first cutting and clamping mechanism cuts the negative pole piece and clamps and conveys the cut pole piece to the bottom film on the lamination table, the first cutting and clamping mechanism retreats, and the diaphragm swinging roller and the first cutting and clamping mechanism move in the same direction to cover the negative pole piece while the first cutting and clamping mechanism conveys the negative pole piece; in the process of retreating the first cutting and clamping mechanism, the second cutting and clamping mechanism cuts the positive pole piece and clamps and conveys the cut pole piece to a diaphragm on the negative pole piece on the lamination table, and meanwhile, the diaphragm swinging roller and the second cutting and clamping mechanism move in the same direction to cover the positive pole piece; the first cutting clamping mechanism and the second cutting clamping mechanism alternately operate, cut pole pieces are clamped and conveyed to the lamination table, the diaphragm swinging roller moves in a Z-shaped reciprocating mode along with the operation of the first cutting clamping mechanism and the second cutting clamping mechanism until the number of stacked pole pieces meets the requirement, the central control system controls the lamination table to alternately operate, and the stacked battery pole pieces are transported; the central control system judges the electrode slice lengths detected by the first detection device and the second detection device, adjusts the running speed of the driving roller, and adjusts the movement stroke of the cutting and clamping mechanism for the slice stacking condition detected by the first detection device and the second detection device so as to ensure the processing speed of battery cutting and stacking;
The lithium battery cutting and stacking device comprises a first cutting and clamping mechanism, a second cutting and clamping mechanism, a central control system and a first detection device, wherein the central control system is internally provided with an electrode slice standard length Lz, when the lithium battery cutting and stacking device operates, the first detection device detects the length of a pole piece cut by the first cutting and clamping mechanism in real time, and the second detection device detects the length of the pole piece cut by the second cutting and clamping mechanism in real time and transmits the detected result to the central control system;
the central control system is internally provided with a pole piece length deviation value Lp, the ith detection device detects that the length of the cut pole piece is L, i is one of the first and second pole pieces, the central control system calculates the absolute value Lq of the difference value between the length of the cut pole piece L and the standard length Lz of the electrode slice, lq= -Lz-L|, the central control system compares the absolute value Lq of the difference value with the pole piece length deviation value Lp,
when Lq is less than or equal to Lp, the central control system judges that the length of the cut pole piece is within a reasonable range;
when Lq is larger than Lp, the central control system judges that the length of the cut pole piece is not in a reasonable range, and the central control system adjusts the rotating speed of the ith driving roller;
when the length of the pole piece cut by the first cutting and clamping mechanism and the length of the pole piece cut by the second cutting and clamping mechanism are in a reasonable range, the first detection device and the second detection device detect the stacking state of the pole piece on the lamination table;
The lithium battery cutting and stacking device can be used for carrying out single-piece stacking and multi-piece stacking, and when single-piece stacking is carried out, the first detection device and the second detection device detect the vertical overlap ratio of the stacked battery pole pieces; when a plurality of stacked battery pole pieces are carried out, the first detection device and the second detection device detect the horizontal distance between the battery pole pieces to be stacked, and then detect the vertical overlap ratio of the battery pole pieces to be stacked.
2. The lithium battery cutting and stacking device according to claim 1, wherein the initial running speed of the ith driving roller is V, when Lq is greater than Lp and Lz is greater than L, the central control system judges that the length of the pole piece cut by the ith cutting and clamping mechanism is shorter than the required length, the central control system increases the rotating speed of the ith driving roller, the adjusted rotating speed is V ', V' =v+lq×a1, and a1 is an acceleration adjustment parameter of the difference value absolute value on the driving roller.
3. The lithium battery cutting and stacking device according to claim 2, wherein the initial running speed of the ith driving roller is V, when Lq is greater than Lp and Lz is less than L, the central control system judges that the length of the pole piece cut by the ith cutting and clamping mechanism is longer than the required length, the central control system reduces the rotating speed of the ith driving roller, the adjusted rotating speed is V ', V' =v-lq×a2, and a2 is a speed reduction adjustment parameter of the difference value relative to the driving roller.
4. The lithium battery stacking device according to claim 3, wherein when the lithium battery stacking device performs single-sheet stacking, the first detection device and the second detection device detect the vertical overlap ratio C of the stacked battery pole pieces and transmit the detection result to the central control system, the central control system is internally provided with an overlap ratio evaluation value Cz, the central control system compares the overlap ratio evaluation value Cz with the overlap ratio C,
when C is less than or equal to Cz, the central control system judges that the overlap ratio of the battery pole pieces reaches the standard, and the central control system controls the lithium battery stacking device to carry out continuous slice stacking production;
when C is larger than Cz, the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, and the central control system controls the cutting clamping mechanism to adjust the running stroke so as to ensure the overlap ratio of the battery pole pieces, and meanwhile, closed-loop deviation correction control is carried out to improve the precision.
5. The lithium battery cutting and stacking device according to claim 4, wherein a standard distance Dz1 from the left edge of the negative electrode plate to the left edge of the stacking table and a standard distance Dz2 from the left edge of the right electrode plate to the right edge of the stacking table are arranged in the central control system;
when the central control system judges that the overlap ratio of the battery pole pieces does not reach the standard, the first detection device detects the distance D1 from the left edge of the negative pole piece on the lamination table to the left edge of the stacking table, the second detection device detects the distance D2 from the right edge of the positive pole piece on the lamination table to the right edge of the stacking table, the central control system calculates a negative pole piece position offset value P1 and a positive pole piece position offset value P2 respectively, P1= -D1-Dz 1-l, P2= -D2-Dz 2-l, the central control system compares the negative pole piece position offset value P1 with the positive pole piece position offset value P2,
When P1 is more than P2, the central control system judges that the deviation position of the negative pole piece is larger than that of the positive pole piece, and the central control system adjusts the movement stroke of the first cutting clamping mechanism by taking the right edge position of the positive pole piece as a datum point;
when P1 is less than P2, the central control system judges that the deviation position of the negative pole piece is smaller than that of the positive pole piece, and the central control system adjusts the movement stroke of the second cutting and clamping mechanism by taking the left edge position of the negative pole piece as a datum point.
6. The lithium battery cutting and stacking device according to claim 5, wherein when the lithium battery cutting and stacking device performs multi-sheet stacking, the first detection device detects a horizontal distance K1 between the negative electrode sheets, the second detection device detects a horizontal distance K2 between the positive electrode sheets, and the central control system adjusts the first cutting clamping mechanism and the second cutting clamping mechanism according to the horizontal distance K1 and the horizontal distance K2, so that the horizontal distance between the negative electrode sheets is ensured to be the same as the horizontal distance between the positive electrode sheets.
7. The lithium battery stacking device according to claim 6, wherein when the horizontal distance between the negative electrode plates is the same as the horizontal distance between the positive electrode plates, the first detection device and the second detection device detect the vertical overlap ratio of the stacked battery plates, the central control system determines the overlap ratio, when the central control system determines that the overlap ratio of the battery plates does not reach the standard, the first detection device detects the distance value from the left edge of the leftmost negative electrode plate on the lamination table to the left edge of the stacking table, and the second detection device detects the distance value from the right edge of the rightmost positive electrode plate on the lamination table to the right edge of the stacking table, and adjusts the stroke of the first cutting clamping mechanism or the second cutting clamping mechanism according to each distance value, so that the overlap ratio of the battery plates reaches the standard.
8. The lithium battery cutting and stacking device according to claim 7, wherein the cutting and clamping mechanism comprises a cutting unit and a clamping unit, the cutting unit is used for cutting the battery pole pieces, and the clamping unit is used for clamping and conveying the cut pole pieces to the lamination table.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211498807.3A CN115799654B (en) | 2022-11-28 | 2022-11-28 | Lithium battery cutting and stacking device |
| PCT/CN2023/134196 WO2024114552A2 (en) | 2022-11-28 | 2023-11-27 | Lithium battery cutting and stacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211498807.3A CN115799654B (en) | 2022-11-28 | 2022-11-28 | Lithium battery cutting and stacking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115799654A CN115799654A (en) | 2023-03-14 |
| CN115799654B true CN115799654B (en) | 2023-05-26 |
Family
ID=85442030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211498807.3A Active CN115799654B (en) | 2022-11-28 | 2022-11-28 | Lithium battery cutting and stacking device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115799654B (en) |
| WO (1) | WO2024114552A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115799654B (en) * | 2022-11-28 | 2023-05-26 | 深圳眼千里科技有限公司 | Lithium battery cutting and stacking device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209641768U (en) * | 2019-03-29 | 2019-11-15 | 深圳市铭钛机电有限公司 | A kind of swing arm lithium battery lamination machine |
| CN210092252U (en) * | 2019-06-14 | 2020-02-18 | 惠州亿纬锂能股份有限公司 | High-speed lamination device of lithium ion battery and lithium ion battery |
| CN113451659A (en) * | 2021-05-21 | 2021-09-28 | 广州中国科学院工业技术研究院 | Lithium battery positive and negative electrode synchronous lamination device and lamination method |
| CN114243087A (en) * | 2021-12-02 | 2022-03-25 | 广州工业技术研究院 | Lithium cell is cut fast and is folded all-in-one |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4351737B2 (en) * | 2007-05-02 | 2009-10-28 | エナックス株式会社 | Laminating device for continuous separator and sheet electrode |
| JP5521861B2 (en) * | 2010-07-28 | 2014-06-18 | 株式会社Ｉｈｉ | Electrode laminator |
| CN105406023A (en) * | 2015-11-17 | 2016-03-16 | 深圳市舜源自动化科技有限公司 | Power battery pole piece slice winding device |
| CN110380130B (en) * | 2019-08-02 | 2024-02-27 | 深圳吉阳智能科技有限公司 | Battery cell preparation equipment and battery cell preparation method |
| KR102401675B1 (en) * | 2020-03-03 | 2022-05-25 | 주식회사 나인테크 | A apparatus for stacking the electrodes or secondary battery |
| CN111933995A (en) * | 2020-09-09 | 2020-11-13 | 深圳市舜源自动化科技有限公司 | Cutting and folding integrated machine |
| CN215008307U (en) * | 2021-01-21 | 2021-12-03 | 深圳科瑞技术股份有限公司 | Battery manufacturing apparatus |
| CN115799654B (en) * | 2022-11-28 | 2023-05-26 | 深圳眼千里科技有限公司 | Lithium battery cutting and stacking device |
-
2022
- 2022-11-28 CN CN202211498807.3A patent/CN115799654B/en active Active
-
2023
- 2023-11-27 WO PCT/CN2023/134196 patent/WO2024114552A2/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209641768U (en) * | 2019-03-29 | 2019-11-15 | 深圳市铭钛机电有限公司 | A kind of swing arm lithium battery lamination machine |
| CN210092252U (en) * | 2019-06-14 | 2020-02-18 | 惠州亿纬锂能股份有限公司 | High-speed lamination device of lithium ion battery and lithium ion battery |
| CN113451659A (en) * | 2021-05-21 | 2021-09-28 | 广州中国科学院工业技术研究院 | Lithium battery positive and negative electrode synchronous lamination device and lamination method |
| CN114243087A (en) * | 2021-12-02 | 2022-03-25 | 广州工业技术研究院 | Lithium cell is cut fast and is folded all-in-one |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024114552A2 (en) | 2024-06-06 |
| CN115799654A (en) | 2023-03-14 |
| WO2024114552A3 (en) | 2024-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109585898B (en) | Battery pack manufacturing system for secondary battery | |
| CN109301302B (en) | Swing arm type lamination machine and lamination method | |
| CN210430010U (en) | Lithium battery lamination equipment | |
| CN115799654B (en) | Lithium battery cutting and stacking device | |
| CN110676516A (en) | Lithium battery lamination equipment | |
| US20230014163A1 (en) | High-speed Cutting Device | |
| CN116344902A (en) | Quick lamination mechanism of pole piece | |
| CN209507102U (en) | Multistation stack device | |
| CN213401286U (en) | Lithium-sulfur battery piece-making and lamination integrated machine | |
| CN117712453B (en) | Lamination device and battery production line | |
| CN216698456U (en) | Lamination device | |
| CN217417405U (en) | Sheet stock transfer device and lamination equipment | |
| CN217522077U (en) | Automatic laminating machine for desktop type pole piece | |
| CN113113656B (en) | Interactive feeding type power battery cutting and stacking all-in-one machine and battery cell cutting, stacking and forming method | |
| CN112349922A (en) | High-efficiency battery core lamination mechanism and battery core lamination process | |
| CN219457709U (en) | Battery core lamination device and cutting device | |
| CN114044347A (en) | Battery cell stacking system and battery cell stacking deviation rectifying method | |
| CN221622451U (en) | Cutting device with deviation correction function | |
| KR102165376B1 (en) | Continuous-Type Cell Stacking Apparatus for Secondary Battery | |
| CN216966414U (en) | High-speed slicing device and lamination equipment | |
| CN117577956B (en) | Lamination device and method | |
| CN216597701U (en) | Stacking table device, vertical stacking machine and battery cell manufacturing equipment | |
| CN216698467U (en) | Bag-making type lamination equipment and lamination product | |
| CN218642096U (en) | Material receiving mechanism for battery pole piece cutting machine | |
| CN221369669U (en) | Loading attachment with counterpoint function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230901 Address after: 518000 4th floor, building 7, Changxing science and Technology Industrial Park, Changzhen community, Yutang street, Guangming District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hehang Intelligent Equipment Co.,Ltd. Address before: 518107 Floor 4, Building 7, Changxing Science and Technology Industrial Park, Changzhen Community, Yutang Street, Guangming District, Shenzhen, Guangdong Province Patentee before: SHENZHEN YANQIANLI TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |