CN211404633U - Lithium battery sheet-making equipment - Google Patents
Lithium battery sheet-making equipment Download PDFInfo
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- CN211404633U CN211404633U CN201922150643.5U CN201922150643U CN211404633U CN 211404633 U CN211404633 U CN 211404633U CN 201922150643 U CN201922150643 U CN 201922150643U CN 211404633 U CN211404633 U CN 211404633U
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- 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
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- Y02E60/10—Energy storage using batteries
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Abstract
The application belongs to the technical field of battery manufacturing equipment, and particularly relates to lithium battery sheet manufacturing equipment which comprises an unwinding mechanism, a defect identification mechanism and a forming mechanism. When the defect identification mechanism does not detect the surface defects of the battery pole piece, the forming mechanism periodically and alternately opens an initial marking hole and an end point marking hole on the battery pole piece, and a tab is prepared between the initial marking hole and the end point marking hole; when the defect identification mechanism detects the surface defect of the battery pole piece, and before the surface defect reaches the forming mechanism, after the last end point marking hole is formed, the forming mechanism forms the next initial marking hole after the battery pole piece passes through a single roll length; and when the last end point mark hole is not opened, the next initial mark hole is opened after the surface defect position passes through the forming mechanism. Therefore, the whole scrapping of the battery pole piece is avoided when the battery pole piece is defective, and the whole manufacturing cost of the lithium ion battery is effectively reduced.
Description
Technical Field
The application belongs to the technical field of battery manufacturing equipment, and particularly relates to lithium battery sheet manufacturing equipment.
Background
In recent years, with the progress of technology, lithium ion batteries have also gradually achieved popularization and application, and compared with common storage batteries, the manufacturing process of the lithium ion batteries is more complex, wherein a more critical process is a battery pole piece preparation process.
In the prior art, when a battery pole piece is prepared, a plurality of processes such as coating, rolling, die cutting and tab forming are needed to perform the production, each roll of battery pole piece needs to mark defects generated in the manufacturing process after the production is completed, and once the defects are found, a complete battery pole piece unit needs to be scrapped, so that the defect-free part of the battery pole piece is wasted, and the manufacturing cost of the lithium battery is increased.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a lithium battery sheet manufacturing equipment, when aiming at solving the battery pole piece preparation among the prior art and appearing the defect, need scrap a complete battery pole piece unit, cause the zero defect part of battery pole piece extravagant, increase lithium battery manufacturing cost's technical problem.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: a lithium battery sheet-making equipment comprises
The unwinding mechanism is used for unwinding the battery pole piece;
the defect identification mechanism is used for identifying and identifying the surface defects of the battery pole piece;
the forming mechanism is used for periodically and alternately forming an initial marking hole and an end point marking hole on the battery pole piece according to a preset length when the defect identification mechanism does not detect the surface defect of the battery pole piece, and preparing a pole lug on the battery pole piece between the initial marking hole and the end point marking hole;
when the defect identification mechanism detects the surface defect of the battery pole piece, the forming mechanism opens the next initial marking hole after the battery pole piece passes through a single-roll length after the forming mechanism completes the opening of the last end point marking hole before the position of the battery pole piece with the surface defect reaches the forming mechanism;
before the position of the battery pole piece with the surface defect reaches the forming mechanism, when the forming mechanism does not finish the forming of the last end point marking hole, the forming mechanism forms the next initial marking hole after the position of the surface defect of the battery pole piece passes through the forming mechanism.
Optionally, a tension buffer arm is arranged between the unwinding mechanism and the defect identification mechanism, and the tension buffer arm is used for adjusting the tension of the battery pole piece.
Optionally, a brushing dust removing mechanism is arranged between the tension buffer arm and the defect identification mechanism, and the brushing dust removing mechanism is used for removing dust and iron of the battery pole piece.
Optionally, a tab pressing mechanism is arranged between the powder brushing and dust removing mechanism and the defect identification mechanism, and the tab pressing mechanism is used for pre-pressing tabs on the battery pole pieces.
Optionally, a deviation correcting mechanism is arranged between the tab beading mechanism and the defect identifying mechanism, and the deviation correcting mechanism is used for correcting the conveying track of the battery pole piece, so that the coating area of the battery pole piece is kept at the central axis of the conveying track of the battery pole piece.
Optionally, a dividing mechanism is arranged between the deviation correcting mechanism and the defect identification mechanism, the dividing mechanism is used for dividing the battery pole piece into two divided pole pieces, the number of the defect identification mechanism and the number of the forming mechanism are both two, and the defect identification mechanism and the forming mechanism are respectively arranged on the corresponding motion paths of the divided pole pieces.
Optionally, a battery pole piece caching mechanism is arranged between the defect identification mechanism and the corresponding forming mechanism, and the battery pole piece caching mechanism is used for caching the battery pole piece with at least one single roll length.
Optionally, the forming mechanism includes a punching assembly for forming the initial marking hole and the final marking hole, a tab forming mechanism for forming the tab, and an ion air knife dust remover, and the punching assembly, the tab forming mechanism, and the ion air knife dust remover are sequentially arranged on one side of the battery pole piece caching mechanism, which is deviated from the defect identification mechanism.
Optionally, forming mechanism is including being used for seting up initial mark hole with terminal point mark hole, and be used for the shaping the laser die-cutting mechanism and the ion wind knife dust remover of utmost point ear, laser die-cutting mechanism with the ion wind knife dust remover set up in proper order in battery pole piece buffer memory mechanism deviates from one side of defect identification mechanism, the ion wind knife dust remover deviates from one side of defect identification mechanism is provided with utmost point ear and smooths mechanism and winding mechanism, utmost point ear smooths the mechanism be used for smoothing the shaping in on the battery pole piece utmost point ear, winding mechanism is used for the rolling to accomplish the shaping of utmost point ear the battery pole piece.
Optionally, the forming mechanism further includes an identification detector, the identification detector is disposed on the laser die-cutting mechanism and is configured to detect a surface defect of the battery pole piece, when the identification detector detects the surface defect of the battery pole piece, and when a position of the battery pole piece with the surface defect reaches a position before the laser die-cutting mechanism, the laser die-cutting mechanism completes the opening of the last end point mark hole, and then the laser die-cutting mechanism opens the next initial mark hole after the battery pole piece passes through a single roll length;
when the position of the battery pole piece with the surface defect reaches the forming mechanism and the laser die-cutting mechanism does not finish the opening of the last end point mark hole, the laser die-cutting mechanism opens the next initial mark hole after the position of the surface defect of the battery pole piece passes through the laser die-cutting mechanism.
The beneficial effect of this application: according to the lithium battery sheet-making equipment, when the lithium battery sheet-making equipment works, the unwinding mechanism discharges a battery pole piece, the defect identification mechanism identifies surface defects existing on the battery pole piece, the identified battery pole piece is then conveyed to the forming mechanism, the forming mechanism can periodically and alternately open an initial marking hole and an end point marking hole on the battery pole piece according to a preset length when the defect identification mechanism does not detect the surface defects of the battery pole piece, and a tab is prepared on the battery pole piece between the initial marking hole and the end point marking hole; therefore, the preparation of the normal tab on the battery pole piece can be realized. When the defect marking mechanism detects the surface defect, and before the position of the battery pole piece with the surface defect reaches the forming mechanism, the forming mechanism completes the opening of the last end point mark hole, namely after the punching period of the last initial mark hole and the end point mark hole is completed, the forming mechanism can open the next initial mark hole after the battery pole piece passes through a single-roll length; therefore, the surface defects can fall on the partial battery pole pieces with the single-roll length, so that only the partial battery pole pieces with the single-roll length need to be removed, and the whole battery pole piece does not need to be scrapped. And when the forming mechanism does not finish forming a terminal mark hole, the forming mechanism forms a next initial mark hole after the surface defect position of the battery pole piece passes through the forming mechanism. Therefore, the position of the battery pole piece with the surface defect is located between the previous initial marking hole and the next initial marking hole, and is not located between the next initial marking hole and the next end point marking hole, so that the battery pole piece between the previous initial marking hole and the next initial marking hole is removed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a lithium battery production facility provided in an embodiment of the present application;
fig. 2 is another schematic structural diagram of a lithium battery production apparatus provided in an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
10-unwinding mechanism 11-unwinding shaft 12-first diameter measurer
13-unwinding positioner 14-unwinding deviation corrector 15-unwinding deviation correction inductor
16-tape splicing platform 20-battery pole piece 21-pole separating piece
30-defect identification mechanism 31-CCD vision module 32-labeling mechanism
40-forming mechanism 41-punching assembly 42-lug forming mechanism
43-ion air knife dust remover 44-tension detector 45-laser die cutting mechanism
50-tension buffer arm 51-low friction cylinder 52-oscillating roller
60-powder brushing and dust removing mechanism 70-tab beading mechanism 80-deviation correcting mechanism
81-deviation-rectifying inductor 82-deviation rectifier 90-slitting mechanism
91-battery pole piece buffer memory mechanism 92-roller 93-driving roller
94-pole lug smoothing mechanism 95-winding mechanism 96-winding shaft
97-discharging positioner 98-second roll diameter measurer 99-length measuring detector.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-2 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1 and fig. 2, an embodiment of the present application provides a lithium battery manufacturing apparatus, including:
the unwinding mechanism 10 is used for unwinding the battery pole piece 20; the unwinding mechanism 10 includes an unwinding shaft 11 for winding the battery pole piece 20 and a rotating motor, and a driving shaft of the rotating motor is in transmission connection with the unwinding shaft 11 to drive the unwinding shaft 11 to rotate.
Optionally, the unwinding mechanism 10 further includes an unwinding positioner 13, a first winding diameter measurer 12, an unwinding deviation-correcting sensor 15, an unwinding deviation corrector 14, and a splicing platform 16, which are sequentially disposed. The first diameter measurer 12 is arranged corresponding to the unwinding shaft 11 and used for measuring and calculating the winding diameter of the battery pole piece 20 wound on the unwinding shaft 11, and the unwinding positioner 13 is also arranged corresponding to the unwinding shaft 11 so as to position the battery pole piece 20 output from the unwinding shaft 11. The unwinding deviation corrector 14 and the unwinding deviation correction sensor 15 are arranged between the unwinding shaft 11 and the splicing platform 16 so as to correct the deviation of the battery pole piece 20 output from the unwinding shaft 11.
The defect identification mechanism 30 is used for identifying and identifying the surface defects of the battery pole piece 20 by the defect identification mechanism 30; specifically, the defect identification mechanism 30 includes a CCD vision module 31 and a labeling mechanism 32, the CCD vision module 31 detects the surface defect of the battery pole piece 20 by recording the surface image of the battery pole piece 20, and the labeling mechanism 32 attaches the identification mark to the surface defect of the battery pole piece 20.
The forming mechanism 40 is used for periodically forming initial marking holes and end point marking holes on the battery pole piece according to a preset length when the defect identification mechanism 30 does not detect the surface defects of the battery pole piece 20, and preparing pole lugs on the battery pole piece 20 between the initial marking holes and the end point marking holes;
when the forming mechanism 40 detects the surface defect of the battery pole piece 20 by the defect identification mechanism 30, and before the position of the battery pole piece 20 with the surface defect reaches the forming mechanism 40, after the forming mechanism 40 completes the opening of the last end point mark hole, the forming mechanism 40 opens the next initial mark hole after the battery pole piece 20 passes through a single roll length (single roll length of the winder);
when the forming mechanism 40 does not complete the opening of the last end mark hole before the position of the battery pole piece 20 with the surface defect reaches the forming mechanism 40, the forming mechanism 40 opens the next initial mark hole after the position of the surface defect of the battery pole piece 20 passes through the forming mechanism 40.
It should be noted that, the surface defect may be one or more, when there are a plurality of surface defects, after the forming mechanism 40 completes the opening of the last end mark hole before the position of the surface defect of the battery pole piece 20 reaches the forming mechanism 40, the forming mechanism 40 opens the next initial mark hole after the battery pole piece 20 passes through a single roll length and after the last surface defect passes through.
The lithium battery sheet making equipment provided by the embodiment of the application is further described as follows: in the lithium battery sheet manufacturing equipment provided by the embodiment of the application, when the lithium battery sheet manufacturing equipment works, the unwinding mechanism 10 releases the battery pole piece 20, the defect identification mechanism 30 identifies the surface defect existing on the battery pole piece 20, the identified battery pole piece 20 is then conveyed to the forming mechanism 40, when the defect identification mechanism 30 does not detect the surface defect of the battery pole piece 20, the forming mechanism 40 can periodically and alternately open an initial marking hole and an end point marking hole on the battery pole piece according to a preset length, and a tab is prepared on the battery pole piece 20 between the initial marking hole and the end point marking hole; thus, the preparation of normal tabs on the battery pole piece 20 can be realized. When the defect identification mechanism 30 detects the surface defect, and before the position of the battery pole piece 20 with the surface defect reaches the forming mechanism 40, the forming mechanism 40 completes the opening of the last end point mark hole, that is, after the punching period of the last initial mark hole and the last end point mark hole is completed, the forming mechanism 40 can open the next initial mark hole after the battery pole piece 20 passes through a single roll length; thus, the surface defect can fall on the part of the battery pole piece 20 with the single-roll length, so that only the part of the battery pole piece 20 with the single-roll length needs to be removed, and the whole battery pole piece 20 does not need to be scrapped. When the forming mechanism 40 does not complete the opening of the last end mark hole, the forming mechanism 40 opens the next initial mark hole after the surface defect position of the battery pole piece 20 passes through the forming mechanism 40. Therefore, the position of the battery pole piece 20 with the surface defect is located between the previous initial marking hole and the next initial marking hole, and is not located between the next initial marking hole and the next end point marking hole, so that the battery pole piece 20 between the previous initial marking hole and the next initial marking hole is removed.
In other embodiments of the present application, as shown in fig. 1 and 2, a tension buffer arm 50 is disposed between the unwinding mechanism 10 and the defect indication mechanism 30, and the tension buffer arm is used for adjusting the tension of the battery pole piece. Specifically, the tension buffer arm 50 includes a swing roller 52 and a low friction cylinder 51 that adjusts the position of the swing roller 52. When the battery pole piece 20 passes through the swing roller 52, the tension of the battery pole piece 20 on both sides of the swing roller 52 can be effectively adjusted by adjusting the position of the swing roller 52. This prevents the battery pole piece 20 from being too tight and breaking.
In other embodiments of the present application, as shown in fig. 1 and 2, a dust brushing and removing mechanism 60 is disposed between the tension buffer arm 50 and the defect identification mechanism 30, and the dust brushing and removing mechanism 60 is used for removing dust and iron from the battery pole piece 20. Specifically, the brush dust removing mechanism 60 specifically includes a driving motor, a spiral brush, an air exhaust duct provided corresponding to the spiral brush, and an air exhaust groove connected to the air exhaust duct. The driving motor drives the spiral brush to rotate, so that the spiral brush brushes the dust, the iron powder and other metal impurities on the surface of the battery pole piece 20 passing through the spiral brush, and the dust, the iron powder and other metal impurities can be discharged to the outside through the air exhaust pipeline and the air exhaust groove.
In other embodiments of the present application, as shown in fig. 1 and 2, a tab beading mechanism 70 is disposed between the dust brushing mechanism 60 and the defect identification mechanism 30, and the tab beading mechanism 70 is used for pre-beading tabs on the battery pole piece 20. Specifically, the tab beading mechanism 70 includes an indentation roller and a bearing roller, and the battery pole piece 20 passes through between the indentation roller and the bearing roller, and can be pressed out the tab pre-beading on the surface thereof through the indentation roller, so as to facilitate the post tab molding.
In other embodiments of the present application, as shown in fig. 1 and fig. 2, a deviation correcting mechanism 80 is disposed between the tab beading mechanism 70 and the defect identifying mechanism 30, the deviation correcting mechanism 80 is specifically disposed before the splitting mechanism 90, and the deviation correcting mechanism 80 is configured to correct a conveying track of the battery pole piece 20, so that a coating area of the battery pole piece 20 is maintained at a central axis of the conveying track of the battery pole piece 20. Specifically, the deviation correcting mechanism 80 may include the deviation correcting sensor 80 and the deviation correcting device 82, and the deviation correcting mechanism 80 is disposed between the tab beading mechanism 70 and the defect marking mechanism 30, so that the coating area and the blank area of the battery pole piece 20 can be detected and adjusted, and the accuracy of subsequent defect identification, battery pole piece 20 slitting, marking identification holes and tab forming can be ensured.
Alternatively, the deviation correcting sensor may be a CCD vision sensor or an ultrasonic sensor, etc.
Optionally, a brushing dust removing mechanism 60 may be disposed between the splitting mechanism 90 and the corresponding defect marking mechanism 30 again to ensure that the surface of the battery pole piece 20 is free of impurities and dust before entering the defect marking mechanism 30.
In other embodiments of the present application, as shown in fig. 1 and fig. 2, a dividing mechanism 90 is disposed between the deviation rectifying mechanism 80 and the defect identification mechanism 30, the dividing mechanism 90 is configured to divide the battery pole piece 20 into two divided pole pieces 21, accordingly, the number of the defect identification mechanisms 30 and the number of the forming mechanisms 40 are two, and the defect identification mechanisms 30 and the forming mechanisms 40 are respectively disposed on the moving paths of the corresponding divided pole pieces 21. Specifically, cut mechanism 90 and include cutter, bottom knife and servo motor, and cutter and bottom knife act on battery pole piece 20 in the servo motor drive to divide into about battery pole piece 20 two parts and divide pole piece 21, when lithium cell film-making equipment includes cutting mechanism 90, defect identification mechanism 30 and forming mechanism 40 and the other mechanisms that set up between the two behind it are all corresponding two, in order to divide pole piece 21 to carry out defect sign, set up sign hole and shaping utmost point ear respectively about two parts. The battery pole piece 20 is divided into the left pole piece 21 and the right pole piece 21 by the dividing mechanism 90, so that the distribution density of surface defects on the battery pole piece 20 can be obviously reduced, and the utilization rate of the battery pole piece 20 is further improved.
In other embodiments of the present application, as shown in fig. 1 and 2, a battery pole piece caching mechanism 91 is disposed between the defect identification mechanism 30 and the corresponding forming mechanism 40, and the battery pole piece caching mechanism 91 is configured to cache at least one single-roll length of battery pole piece 20. Specifically, the battery pole piece buffer mechanism includes the roller 92 that crosses that sets up in proper order, drive roller 93, driven roller and guide plate, drive roller 93 is connected with roller 92 and driven roller to drive the rotation of roller 92 and driven roller, the guide plate corresponds the driven roller setting and keeps leveling with the direction of transport of driven roller, battery pole piece 20 can be in the transportation of roller 92 and driven roller like this, the length of the transfer path that each crosses that roller 92 formed side by side is more than or equal to at least one single book length of battery pole piece 20, in order to effectively realize the buffering to battery pole piece 20, can carry out tension through the front and back section of battery pole piece 20 that crosses roller 92 simultaneously and cut off, in order to avoid battery pole piece 20 to fracture.
Optionally, a deviation rectifying mechanism 80 may be disposed between the battery pole piece buffering mechanism 91 and the forming mechanism 40 again, so as to further ensure the accuracy of marking holes and forming tabs on the battery pole piece 20.
In other embodiments of the present application, as shown in fig. 1, as a specific implementation manner of the forming mechanism 40, the forming mechanism 40 includes a punching assembly 41 for punching an initial marking hole and a final marking hole, a tab forming mechanism 42 for forming a tab, and an ion wind knife dust remover 43. Wherein, the tab forming mechanism 42 may be a hardware die cutting mechanism or a laser die cutting mechanism 45. The punching assembly 41, the tab forming mechanism 42 and the ion air knife dust remover 43 are sequentially arranged on one side of the battery pole piece caching mechanism 91 departing from the defect identification mechanism 30. Specifically, the punching assembly 41 opens an initial marking hole and an end marking hole on the battery pole piece 20 according to the set parameters. After the completion, the tab forming mechanism 42 forms a tab between the initial mark hole and the end mark hole, and when a surface defect occurs on the surface of the battery pole piece 20, the initial mark hole and the end mark hole are formed on the battery pole piece 20 according to the above-mentioned logic and the tab is formed. And will not be described in detail herein.
In other embodiments of the present application, as shown in fig. 2, as another specific implementation manner of the forming mechanism 40, the forming mechanism 40 includes a laser die-cutting mechanism 45 and an ion air knife dust remover 43, which are used for forming an initial mark hole and a final mark hole and for forming a tab, and the laser die-cutting mechanism 45 and the ion air knife dust remover 43 are sequentially disposed on a side of the battery pole piece caching mechanism 91 away from the defect identification mechanism 30. Specifically, as another specific implementation manner of the forming mechanism 40, by providing the laser die cutting mechanism 45, the laser die cutting mechanism can have the functions of opening the initial mark hole, the end point mark hole and forming the tab, so that the process of opening the initial mark hole, the end point mark hole and forming the tab is optimized, the process of manufacturing the lithium battery tab is saved, and the process cost of opening the initial mark hole, the end point mark hole and forming the tab is reduced.
In other embodiments of the present application, as shown in fig. 1 and fig. 2, the forming mechanism 40 further includes an identification detector, which is disposed on the laser die-cutting mechanism 45 and is used for detecting the surface defect of the battery pole piece 20, and specifically, the identification detector is configured to detect the position of the surface defect by detecting the identification mark attached to the surface defect by the labeling mechanism 32 of the defect identifying mechanism 30, and when the position of the battery pole piece 20 with the surface defect reaches the laser die-cutting mechanism 45, and the laser die-cutting mechanism 45 completes the opening of the last end point mark hole, the laser die-cutting mechanism 45 opens the next initial mark hole after the battery pole piece 20 passes through a single roll length; when the laser die-cutting mechanism 45 does not complete the opening of the last end point mark hole before the position of the battery pole piece 20 with the surface defect reaches the forming mechanism 40, the laser die-cutting mechanism 45 opens the next initial mark hole after the position of the surface defect of the battery pole piece 20 passes through the laser die-cutting mechanism 45. Specifically, a tension detector 44 may be disposed between the laser die-cutting mechanism 45 and the winding mechanism 95 to measure the tension of the battery pole piece 20 before the battery pole piece 20 enters the winding mechanism 95, so as to ensure that the tension of the battery pole piece 20 is not too large.
In other embodiments of the present application, as shown in fig. 1 and fig. 2, a tab flattening mechanism 94 and a winding mechanism 95 are disposed on a side of the ion air knife dust remover 43 away from the defect identification mechanism 30, the tab flattening mechanism 94 is used for flattening tabs formed on the battery pole pieces 20, and the winding mechanism 95 is used for winding the battery pole pieces 20 after the tabs are formed. Specifically, by providing the ion air knife dust remover 43, the ion air knife dust remover 43 can further remove dust from the battery pole piece 20 on which the tab is formed. The winding mechanism 95 comprises a winding shaft 96 for the battery pole piece 20, a winding motor for driving the winding shaft 96 to rotate, a length measuring detector 99, a discharging positioner 97 and a second winding diameter measurer 98, the electromagnetic battery pole piece is firstly subjected to length measurement of the battery pole piece through the length measuring detector 99 and then wound through the winding shaft 96 and the winding motor, meanwhile, a pole lug on the battery pole piece 20 is smoothed by a pole lug flattening device, the second winding diameter measurer 98 is used for measuring the winding diameter of the battery pole piece 20 wound on the winding shaft 96, and the winding diameter reaches a set value to perform shutdown alarm.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. The utility model provides a lithium cell film-making equipment which characterized in that: comprises that
The unwinding mechanism is used for unwinding the battery pole piece;
the defect identification mechanism is used for identifying and identifying the surface defects of the battery pole piece;
the forming mechanism is used for periodically and alternately forming an initial marking hole and an end point marking hole on the battery pole piece according to a preset length when the defect identification mechanism does not detect the surface defect of the battery pole piece, and preparing a pole lug on the battery pole piece between the initial marking hole and the end point marking hole;
when the defect identification mechanism detects the surface defect of the battery pole piece, the forming mechanism opens the next initial marking hole after the battery pole piece passes through a single-roll length after the forming mechanism completes the opening of the last end point marking hole before the position of the battery pole piece with the surface defect reaches the forming mechanism;
before the position of the battery pole piece with the surface defect reaches the forming mechanism, when the forming mechanism does not finish the forming of the last end point marking hole, the forming mechanism forms the next initial marking hole after the position of the surface defect of the battery pole piece passes through the forming mechanism.
2. The lithium battery production apparatus as claimed in claim 1, wherein: and a tension buffer arm is arranged between the unwinding mechanism and the defect identification mechanism and used for adjusting the tension of the battery pole piece.
3. The lithium battery production apparatus as claimed in claim 2, wherein: and a powder brushing and dust removing mechanism is arranged between the tension buffer arm and the defect identification mechanism, and is used for removing dust and iron of the battery pole piece.
4. The lithium battery production apparatus as claimed in claim 3, wherein: and a lug rib pressing mechanism is arranged between the powder brushing and dust removing mechanism and the defect identification mechanism and is used for pre-pressing ribs on the battery pole piece.
5. The lithium battery production apparatus as claimed in claim 4, wherein: and a deviation rectifying mechanism is arranged between the tab beading mechanism and the defect identification mechanism and is used for rectifying the conveying track of the battery pole piece so as to ensure that the coating area of the battery pole piece is kept at the central axis of the conveying track of the battery pole piece.
6. The lithium battery production apparatus as claimed in claim 5, wherein: the rectifying mechanism with be provided with between the defect identification mechanism and cut the mechanism, cut the mechanism be used for with battery sheet cuts into two branch pole pieces, defect identification mechanism with forming mechanism's quantity is two, defect identification mechanism with forming mechanism sets up respectively in corresponding divide on the motion route of pole piece.
7. The lithium battery production apparatus as claimed in claim 6, wherein: and a battery pole piece caching mechanism is arranged between the defect identification mechanism and the corresponding forming mechanism and is used for caching at least one single-roll length of the battery pole piece.
8. The lithium battery production apparatus as claimed in claim 7, wherein: the forming mechanism comprises a punching assembly, a tab forming mechanism and an ion air knife dust remover, wherein the punching assembly is used for forming the initial marking hole and the terminal marking hole, the tab forming mechanism is used for forming a tab, and the ion air knife dust remover is sequentially arranged on one side, deviating from the defect identification mechanism, of the battery pole piece caching mechanism.
9. The lithium battery production apparatus as claimed in claim 7, wherein: forming mechanism is including being used for seting up initial mark hole with terminal point mark hole for the shaping laser die cutting mechanism and the ion wind sword dust remover of utmost point ear, laser die cutting mechanism with the ion wind sword dust remover set up according to the preface in battery pole piece buffer memory mechanism deviates from one side of defect identification mechanism, the ion wind sword dust remover deviates from one side of defect identification mechanism is provided with utmost point ear and smooths mechanism and winding mechanism, utmost point ear smooths the mechanism be used for smoothing the shaping in on the battery pole piece utmost point ear, winding mechanism is used for the rolling to accomplish the shaping of utmost point ear battery pole piece.
10. The lithium battery production apparatus as claimed in claim 9, wherein: the forming mechanism further comprises an identification detector, the identification detector is arranged on the laser die-cutting mechanism and used for detecting the surface defects of the battery pole piece, when the identification detector detects the surface defects of the battery pole piece, and when the position of the battery pole piece with the surface defects reaches the position before the laser die-cutting mechanism, the laser die-cutting mechanism completes the opening of the last end point mark hole, and then the laser die-cutting mechanism opens the next initial mark hole after the battery pole piece passes through a single-roll length;
when the position of the battery pole piece with the surface defect reaches the forming mechanism and the laser die-cutting mechanism does not finish the opening of the last end point mark hole, the laser die-cutting mechanism opens the next initial mark hole after the position of the surface defect of the battery pole piece passes through the laser die-cutting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922150643.5U CN211404633U (en) | 2019-12-04 | 2019-12-04 | Lithium battery sheet-making equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922150643.5U CN211404633U (en) | 2019-12-04 | 2019-12-04 | Lithium battery sheet-making equipment |
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| CN211404633U true CN211404633U (en) | 2020-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332604A (en) * | 2022-08-25 | 2022-11-11 | 广州市易鸿智能装备有限公司 | Lithium battery die-cutting and reel-changing system and method |
| CN115690097A (en) * | 2022-12-15 | 2023-02-03 | 宁德时代新能源科技股份有限公司 | Pole piece labeling control method and device, electronic equipment and storage medium |
-
2019
- 2019-12-04 CN CN201922150643.5U patent/CN211404633U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332604A (en) * | 2022-08-25 | 2022-11-11 | 广州市易鸿智能装备有限公司 | Lithium battery die-cutting and reel-changing system and method |
| CN115690097A (en) * | 2022-12-15 | 2023-02-03 | 宁德时代新能源科技股份有限公司 | Pole piece labeling control method and device, electronic equipment and storage medium |
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