WO2023083177A1 - 一种卷绕设备 - Google Patents

一种卷绕设备 Download PDF

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Publication number
WO2023083177A1
WO2023083177A1 PCT/CN2022/130620 CN2022130620W WO2023083177A1 WO 2023083177 A1 WO2023083177 A1 WO 2023083177A1 CN 2022130620 W CN2022130620 W CN 2022130620W WO 2023083177 A1 WO2023083177 A1 WO 2023083177A1
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WO
WIPO (PCT)
Prior art keywords
assembly
station
downstream
cut
pole piece
Prior art date
Application number
PCT/CN2022/130620
Other languages
English (en)
French (fr)
Inventor
赵留杰
王奉杰
Original Assignee
无锡先导智能装备股份有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 无锡先导智能装备股份有限公司 filed Critical 无锡先导智能装备股份有限公司
Priority to EP22891971.8A priority Critical patent/EP4246654A1/en
Publication of WO2023083177A1 publication Critical patent/WO2023083177A1/zh
Priority to US18/210,308 priority patent/US20230327174A1/en

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    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • 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

Definitions

  • the present application relates to the technical field of battery manufacturing equipment, and more specifically, to a winding equipment.
  • the battery core is an important part of the lithium-ion battery.
  • the battery core is formed by winding a four-layer material tape of a separator, a cathode electrode, a separator, and an anode electrode.
  • the existing winding equipment cannot realize continuous winding, and each time a cell is wound, two pole piece feeding devices are required to insert the anode pole piece and the cathode pole piece into the winding needle mechanism respectively, because the anode pole piece and the cathode pole piece It takes a long time to insert the pole piece, which seriously affects the winding efficiency of the battery core.
  • a winding device comprising:
  • the first unwinding device, the second unwinding device, the third unwinding device and the fourth unwinding device are respectively used to output the first diaphragm, the cathode pole piece, the second diaphragm and the anode pole piece;
  • the film doubling device is arranged downstream of the first unwinding device, the second unwinding device, the third unwinding device and the fourth unwinding device, and is used to pass the first diaphragm, cathode sheet, and second diaphragm Close up with the anode pole piece to form a combined strip;
  • the first pole piece processing device is arranged between the second unwinding device and the film doubling device, and is used to cut off the passing cathode pole piece, and to cut off the first upstream cutting end and the second pole piece formed after cutting the cathode pole piece.
  • a downstream cut end is separated from each other, and the first upstream cut end and the first downstream cut end are connected by an adhesive tape; the adhesive tape between the first upstream cut end and the first downstream cut end forms a first tape portion;
  • the winding device includes a turret and at least two rolling needles installed on the turret, the turret is rotatably arranged to drive each of the rolling needles to pass through the first station and the second station in sequence , the first station is located downstream of the film doubling device; and
  • the guide roller and the cutting device are all arranged between the first station and the second station, and the cutting device is used to cut the passing first diaphragm, the first adhesive tape part on the cathode sheet, the second diaphragm and the anode pole piece are cut off at one time;
  • the rolling needle located at the first station rotates to the second station with the turret
  • the other rolling needle rotates to the first station and is located at the first station.
  • the combined material strip between the first station and the second station is wound around the guide roller; under the guidance of the guide roller, the roll needle at the first station can be clamped and passed The combined material belt of the first station.
  • the first pole piece processing device includes a first clamping assembly, a first cutting assembly, a first gluing assembly and a second clamping assembly arranged sequentially from upstream to downstream;
  • Both the first clamping assembly and the second clamping assembly are used to clamp the passing cathode sheet, and both can move downstream, and the first cutting assembly is used to cut the passing cathode sheet and form a first upstream severed end and a first downstream severed end;
  • first pinch assembly and the second pinch assembly when they move downstream, they can respectively drive the first upstream cut-off end and the first downstream cut-off end to move to the first gluing assembly and close to each other.
  • the first gluing component is used to bond the first upstream cut end and the first downstream cut end by adhesive tape.
  • the first clamping assembly and the second clamping assembly respectively drive the first upstream cutting end and the first downstream cutting end to move to the first gluing assembly
  • the The movement distance of the second pinch assembly is greater than the movement distance of the first pinch assembly
  • the first adhesive assembly is used to bond the adhesive tape to the first upstream cut end and the first downstream cut end from one side of the cathode sheet.
  • the first gluing component is used to bond two adhesive tapes to the first upstream cut end and the first downstream cut end from both sides of the cathode sheet respectively.
  • the adhesive tape includes a first adhesive tape, a second adhesive tape, and a third adhesive tape
  • the first adhesive assembly is used to bond the first adhesive tape to the first side of the cathode electrode piece.
  • the upstream cut end and the first downstream cut end, and the second tape is bonded to the first upstream cut end and the first tape from the second side of the cathode sheet, and the third tape is attached to the cathode sheet
  • the second side of the first downstream cut end is bonded to the first adhesive tape.
  • the winding equipment further includes a second pole piece processing device, the second pole piece processing device is arranged between the film doubling device and the fourth unwinding device for cutting The anode pole piece passing through, and the second upstream cut end and the second downstream cut end formed after cutting the anode pole piece are separated from each other, and the second upstream cut end and the second downstream cut end are connected by adhesive tape; the second upstream cut The tape between the end and the second downstream severed end forms a second tape portion;
  • the cutting device is used to cut off the passing first diaphragm, the first adhesive tape on the cathode sheet, the second diaphragm and the second adhesive tape on the anode sheet at one time.
  • the second pole piece processing device includes a third clamping assembly, a second cutting assembly, a second gluing assembly and a fourth clamping assembly arranged sequentially from upstream to downstream;
  • Both the third clamping assembly and the fourth clamping assembly are used to clamp the passing anode pole piece, and both can move downstream, and the second cutting assembly is used to cut the passing anode pole piece and form a second upstream severed end and a second downstream severed end;
  • the third pinch assembly and the fourth pinch assembly move downstream, they can respectively drive the second upstream cut-off end and the second downstream cut-off end to move to the second gluing assembly and be close to each other.
  • the second gluing component is used to bond the second upstream cut end and the second downstream cut end by adhesive tape.
  • the third clamping assembly and the fourth clamping assembly respectively drive the second upstream cutting end and the second downstream cutting end to move to the second gluing assembly
  • the The movement distance of the fourth pinch assembly is greater than the movement distance of the third pinch assembly
  • the second gluing component is used to bond the tape to the second upstream cut end and the second downstream cut end from one side of the anode sheet.
  • the second gluing component is used to bond two adhesive tapes to the second upstream cut end and the second downstream cut end from both sides of the anode sheet respectively.
  • the adhesive tape includes a first adhesive tape, a second adhesive tape and a third adhesive tape
  • the second gluing assembly is used for adhering the first adhesive tape to the second adhesive tape from the first side of the anode sheet.
  • the upstream cut end and the second downstream cut end, and the second adhesive tape is bonded to the second upstream cut end and the first adhesive tape from the second side of the anode sheet, and the third adhesive tape is attached to the anode sheet Bond the second downstream severed end to the first tape on the second side.
  • the winding equipment further includes a first feeding device arranged between the film doubling device and the first pole piece processing device;
  • the first feeding device includes a first feeding assembly, the first feeding assembly has two first feeding rollers oppositely arranged, and a cathode electrode is formed between the two first feeding rollers. At least one of the two first feed rollers can be controlled to approach or move away from the other, and both can rotate around their own axes.
  • the two first feeding rollers can be controlled to move along their axial direction, so as to drive the cathode electrode sheet clamped by the two first feeding rollers to correct the deflection.
  • the first feeding device further includes a first clamping assembly and a first cutting assembly, the first clamping assembly is arranged upstream of the first feeding assembly, and the first The cutting assembly is arranged between the first clamping assembly and the first feeding assembly; the first clamping assembly is used for clamping or loosening the passing cathode sheet, and can be controlled towards the The first cut-off assembly approaches or moves away, and the first cut-off assembly is used for cutting off the passing cathode sheet.
  • the winding device further includes a second feeding device arranged between the film doubling device and the fourth unwinding device;
  • the second feeding device includes a second feeding assembly, the second feeding assembly has two oppositely arranged second feeding rollers, and the anode electrode is formed between the two second feeding rollers. At least one of the two second feeding rollers can be controlled to approach or move away from the other, and both can rotate around their own axes.
  • the two second feeding rollers can be controlled to move along their axial direction, so as to drive the anode pole piece clamped by the two second feeding rollers to correct the deflection.
  • the second feeding device further includes a second clamping assembly and a second cutting assembly, the second clamping assembly is arranged upstream of the second feeding assembly, and the second The cutting assembly is arranged between the second clamping assembly and the second feeding assembly;
  • the second clamping component is used to clamp or loosen the passing anode pole piece, and can be controlled to approach or move away from the second cutting component, and the second cutting component is used to cut off the passing anode pole piece .
  • the film bonding device has the first film bonding roller and the second film bonding roller oppositely arranged, and the first film bonding roller and the second film bonding roller form a A film bonding channel for the first diaphragm, the cathode electrode sheet, the second diaphragm and the anode electrode sheet to pass through; at least one of the first film bonding roller and the second film bonding roller can be controlled relative to the other or move closer or farther away, and both the first and second film-forming rollers are rotatable around their own axes.
  • three winding needles are installed on the turret, and the three winding needles are arranged at intervals along the rotation direction of the turret; the winding device also has a third station, three During the rotation of each of the needles with the turret, they pass through the first station, the second station and the third station in turn; when one of the needles is located at the first station position, the other two rolling pins are located at the second station and the third station respectively;
  • the above-mentioned winding equipment, the first diaphragm, the cathode pole piece, the second diaphragm and the anode pole piece that are respectively unwound and output by the first unwinding device, the second unwinding device, the third unwinding device and the fourth unwinding device are combined
  • the membrane devices are brought together to form a combined material strip, and the combined material strip formed after being brought together reaches the coiling needle of the first station.
  • the winding needle at the first station rotates by itself to wind the combined material tape to form the battery core.
  • the winding needle at the first station stops rotating and rotates to the second station along with the turret, while the other winding needle rotates to the first station along with the turret.
  • the combined material belt located between the first station and the second station is wound on the guide roller, and under the guidance of the guide roller, the combined material belt passing through the first station and the Alignment of the slits of the rollers on the first station. Controlling the stretching out of the winding needle at the first station, so that the combined material strip passing through the first station enters the slit of the rolling needle, and then the combined material strip is clamped and fixed by the rolling needle.
  • the cutting device cuts off the combined material strip passing between the first station and the second station, so that the electric core on the rolling needle located at the second station is separated from the combined material strip, so as to facilitate the The battery cells are processed and unloaded. Moreover, since the combined material tape formed by the film doubling device is located in the slit of the winding needle of the first station, the winding and forming of the next cell can be directly carried out, and there is no need to carry out further processing of the cathode electrode sheet and the anode electrode sheet. Insert action. That is to say, when a cell is formed, it is not necessary to insert the sheet (i.e. insert the starting end of the cathode sheet and the anode sheet into the film doubling device), and the next cell can be wound again, greatly The transition time between forming two cells is reduced and the production efficiency is improved.
  • Fig. 1 is a schematic structural view of a winding device in an embodiment of the present application
  • Fig. 2 is a schematic structural view of the winding device shown in Fig. 1 (the winding needle after the cell winding is completed is rotated from the first station to the second station);
  • Fig. 3 is a schematic diagram of the gluing method of the first pole piece processing device of the winding equipment shown in Fig. 1;
  • Fig. 4 is a schematic diagram of another gluing method of the first pole piece processing device of the winding equipment shown in Fig. 1;
  • Fig. 5 is a schematic diagram of another gluing method of the first pole piece processing device of the winding equipment shown in Fig. 1;
  • FIG. 6 is a schematic structural view of a winding device in another embodiment of the present application.
  • Fig. 7 is a schematic structural view of the winding device shown in Fig. 6 (the winding needle after the cell winding is completed rotates from the first station to the second station);
  • Fig. 8 is a schematic diagram of the gluing method of the second pole piece processing device of the winding equipment shown in Fig. 6;
  • Fig. 9 is a schematic diagram of another gluing method of the second pole piece processing device of the winding equipment shown in Fig. 6;
  • FIG. 10 is a schematic diagram of another glue application method of the second pole piece processing device of the winding equipment shown in FIG. 6 .
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a winding device provided by an embodiment of the present application includes a first unwinding device 10, a second unwinding device 31, a third unwinding device 20, a fourth unwinding device 41, The first pole piece processing device 32 , the film doubling device 50 , the winding device 60 , the guide roller 70 and the cutting device 80 .
  • the first unwinding device 10 is used to output the first diaphragm a1 downstream
  • the second unwinding device 31 is used to output the cathode sheet a3 downstream
  • the third unwinding device 20 is used to output the second diaphragm a2 downstream
  • the fourth unwinding device 31 is used to output the cathode sheet a3 downstream.
  • the unwinding device 41 is used to output the anode sheet a4 downstream.
  • the film doubling device 50 is arranged downstream of the first unwinding device 10, the second unwinding device 31, the third unwinding device 20, and the fourth unwinding device 41, and is used for passing the first diaphragm a1, the cathode pole piece a3 , the second diaphragm a2 and the anode pole piece a4 are brought together to form a combined strip a5.
  • the first pole piece processing device 32 is arranged between the second unwinding device 31 and the film doubling device 50, to cut off the passing cathode pole piece a3, and cut off the first upstream cutting end d1 formed by the cathode pole piece a3 (see 3 ) and the first downstream cut end d2 (see FIG.
  • first upstream cut end d1 and the first downstream cut end d2 of the cathode tab a3 are separated from each other, and the first upstream cut end d1 and the first downstream cut end d2 of the cathode tab a3 are reconnected by adhesive tape.
  • the tape between the first upstream cut end d1 and the first downstream cut end d2 forms a first tape portion.
  • the winding device 60 includes a turret 61 and at least two winding needles 62 installed on the turret 61 , and each winding needle 62 can extend or retract relative to the turret 61 .
  • the turret 61 is rotatably arranged, and the at least two winding needles 62 pass through the first station b1 and the second station b2 in turn during the rotation of the turret 61 , and the first station b1 is located downstream of the film doubling device 50 , so that the combined material strips a5 combined by the film combining device 50 are transported to the winding needle 62 of the first station b1.
  • the guide roller 70 is arranged between the first station b1 and the second station b2, and is used for winding the combined material strip a5 between the first station b1 and the second station b2.
  • the cutting device 80 is arranged between the first station b1 and the second station b2, so that the passing first diaphragm a1, the first tape portion on the cathode electrode sheet a3, the second diaphragm a2 and the anode electrode sheet a4 are disposable cut off.
  • the other rolling needle 62 rotates to the first station b1, and is located at the first station b1 and the second station b1.
  • the combined material strip a5 between the positions b2 is wound on the guide roller 70, so that the slit on the rolling needle 62 positioned at the first station b1 is aligned with the combined material strip a5 passing through the first station b1, so that the combined material strip a5 located at the first station b1 is aligned.
  • the winding needle 62 of the station b1 is stretched out, the combined material strip a5 passing through the first station b1 can enter the slit of the winding needle 62 and be clamped and fixed, which is convenient for subsequent winding.
  • the above-mentioned winding equipment, the first unwinding device 10, the second unwinding device 31, the third unwinding device 20 and the fourth unwinding device 41 respectively unwind the first diaphragm a1, the cathode pole piece a3, the second diaphragm a2 and the anode sheet a4 are brought together by the doubling device 50 to form a combined material strip a5, and the formed combined material strip a5 reaches the coiling needle 62 of the first station b1.
  • the winding needle 62 located at the first station b1 rotates by itself to wind the assembly tape a5 to form a battery cell.
  • the winding needle 62 of the first station b1 stops rotating, and rotates with the turret 61 to the second station b2, and at the same time, the other winding needle 62 rotates with the turret 61 to the first station b1.
  • the combined material belt a5 located between the first station b1 and the second station b2 is wound on the guide roller 70, and under the guidance of the guide roller 70, passes through the first station
  • the combined material strip a5 at the position b1 is aligned with the slit of the winding needle 62 on the first position b1.
  • the rolling needle 62 located at the first station b1 is controlled to extend out, so that the combined material strip a5 passing through the first station b1 enters the slit of the rolling needle 62 , and then the combined material strip a5 is clamped and fixed by the rolling needle 62 . Then, the cutting device 80 cuts off the combined material strip a5 passing between the first station b1 and the second station b2, so that the electric core on the winding needle 62 of the second station b2 is separated from the combined material strip a5, so that Subsequent processing and blanking are carried out on the electric core on the winding pin 62 .
  • the combined material tape a5 formed by the film doubling device 50 is located in the slit of the winding needle 62 of the first station b1, the next battery core can be directly wound and formed, and there is no need to reassemble the cathode sheet a3 And the anode pole piece a4 performs the inserting action. That is to say, after the forming of a battery cell is completed, the next battery cell can be rolled again without performing the inserting action (that is, inserting the starting ends of the cathode pole piece a3 and the anode pole piece a4 into the film doubling device 50 ). Winding greatly reduces the transition time between forming two batteries and improves production efficiency.
  • the first pole piece processing device 32 first cuts off the passing cathode pole piece a3, and then cuts off the first upstream cutting end d1 formed by the cathode pole piece a3 and The first downstream cut ends d2 are separated (that is, they are separated from each other by a certain distance), and then the separated first upstream cut ends d1 and first downstream cut ends d2 are bonded together by adhesive tape.
  • the tape between the first upstream cut end d1 and the first downstream cut end d2 forms a first tape portion.
  • the cutting device 80 cuts off the composite tape a5 from the adhesive tape, that is, cuts off the first adhesive tape portion on the first diaphragm a1, the cathode sheet a3, the second diaphragm a2, and the anode sheet a4, and cuts off the composite tape a5.
  • the first upstream cut-off end d1 and the first downstream cut-off end d2 of the cathode pole piece a3 are still wrapped with adhesive tape, so as to prevent the burrs of the first upstream cut-off end d1 and the first downstream cut-off end d2 from being exposed, thereby avoiding the impact of the burrs on the quality and quality of the battery cell.
  • Safety has adverse effects, that is, it is beneficial to improve the quality and safety of batteries.
  • the film doubling device 50 can be closed in sequence according to the order of the first diaphragm a1 , the cathode sheet a3 , the second diaphragm a2 and the anode sheet a4 .
  • the membrane doubling device 50 can also be folded together in sequence according to the order of the first diaphragm a1 , the anode pole piece a4 , the second membrane a2 and the cathode pole piece a3 .
  • each needle roll has a first outer needle, a first inner needle, a second outer needle and a second inner needle.
  • the first outer needle and the second outer needle are arranged oppositely, and the surfaces on one side away from each other are combined to form an outer contour surface for winding the electric core.
  • the first inner needle is arranged on the side of the first outer needle facing the second outer needle, and the second inner needle is arranged on the side of the second outer needle facing the first outer needle.
  • the above-mentioned slit is formed between them, and the combined material strip a5 in the slit is clamped by the relative movement of the first inner needle and the second inner needle.
  • the stretching out of the rolling needle means that the first outer needle and the second outer needle move axially so that the combined material strip a5 enters the slit between the first inner needle and the second inner needle.
  • the retraction of the winding needle refers to: the first outer needle and the second outer needle move in opposite directions in the axial direction so that the combined material strip a5 exits from the slit between the first inner needle and the second inner needle.
  • the first pole piece processing device 32 includes a first clamping assembly 321 , a first cutting assembly 322 , a first gluing assembly 323 and a second clamping assembly 324 sequentially arranged from upstream to downstream. Both the first clamping assembly 321 and the second clamping assembly 324 are used to clamp the passing cathode sheet a3, and both can move downstream.
  • the first cutting assembly 322 is used to cut off the passing cathode sheet a3 and form the above-mentioned first upstream cutting end d1 and first downstream cutting end d2.
  • first pinch assembly 321 and the second pinch assembly 324 when they move downstream, they can respectively drive the first upstream cut-off end d1 and the first downstream cut-off end d2 of the cathode sheet a3 to move to the first gluing assembly 323 and separated from each other.
  • the first gluing component 323 is used to stick the tape to the first upstream cut end d1 and the first downstream cut end d2 of the cathode sheet a3, so that the first upstream cut end d1 and the first downstream cut end d2 are connected by the tape.
  • the moving distance of the second pinch assembly 324 is greater than the moving distance of the first pinch assembly 321, that is, the moving distance of the first downstream cut-off end d2 is greater than the moving distance of the first upstream cut-off end d1, so as to reach the first gluing assembly
  • the first upstream cut-off end d1 and the first downstream cut-off end d2 are spaced apart from each other.
  • the first adhesive assembly 323 is used to bond the tape f to the first upstream cut end d1 and the first downstream cut end d2 from one side of the cathode sheet a3, thereby using
  • the adhesive tape f pasted on one side connects the first upstream cut end d1 and the first downstream cut end d2 of the cathode electrode piece a3.
  • the cathode pole piece a3, the second diaphragm a2 and the anode pole piece a4 are brought together by the film combining device 50, since the first adhesive tape part of the cathode pole piece a3 has only one layer of tape, the combined material after the close-up The tape a5 is thinner at the first tape portion, which is beneficial for the cutting device 80 to cut, and the cutting quality is better.
  • the first adhesive assembly 323 is used to bond two tapes f to the first upstream cut end d1 and the first downstream cut end from both sides of the cathode sheet a3 respectively d2, so that the first upstream cut-off end d1 and the first downstream cut-off end d2 are connected by two tapes f on both sides of the cathode sheet a3, so that the first upstream cut-off end d1 and the first downstream cut-off end d2 are firmly connected.
  • the first adhesive tape portion on the cathode tab a3 has two layers of adhesive tape.
  • the adhesive tape includes a first adhesive tape f1 , a second adhesive tape f2 and a third adhesive tape f3 .
  • the first adhesive assembly 323 is used to bond the first tape f1 to the first upstream cut end d1 and the first downstream cut end d2 from the first side of the cathode sheet a3, and to attach the second adhesive tape f2 to the cathode sheet a3.
  • the second side is bonded to the first upstream cut end d1 and the first tape f1
  • the third tape f3 is bonded to the first downstream cut end d2 and the first tape f1 from the second side of the cathode sheet a3.
  • the first tape part is the part of the first tape f located between the second tape f2 and the third tape f3, that is, the first tape part has only one layer of tape.
  • a long adhesive tape i.e. the first adhesive tape f1
  • two short adhesive tapes i.e.
  • the second adhesive tape f2 and the third adhesive tape f3) are used to connect the first upstream cut-off end d1 and the first downstream cut-off end d2, on the one hand making the first
  • the upstream cut-off end d1 and the first downstream cut-off end d2 are firmly connected, and on the other hand, the thickness of the position between the two short tapes on the cathode pole piece a3 in the combined material tape a5 after being brought together is relatively thin (that is, the first tape portion
  • the thickness is relatively thin), which is beneficial for the cutting device 80 to cut off the combined material tape a5 (that is, cut off the second tape portion) at the position between the two short tapes, so as to ensure the cutting quality.
  • the side of the first adhesive tape f1 facing the cathode sheet a3 has a first glue-coated area, a non-glue-coated area and a second glue-coated area in sequence.
  • the first glued area is bonded to the first downstream cut end d2, and the second glued area is bonded to the first upstream cut end d1.
  • One end of the third adhesive tape f3 is bonded to the first downstream cut-off end d2, and the other end is bonded to the first glued area.
  • One end of the second adhesive tape f3 is bonded to the first upstream cut-off end d1, and the other end is bonded to the second glued area.
  • the area between the first adhesive tape f1 corresponding to the second adhesive tape f2 and the third adhesive tape f3 is a non-adhesive area, so as to prevent the first adhesive tape f1 from adhering to other components during tape running.
  • the first clamping assembly 321 has two oppositely arranged first clamping parts 3211, and a hole is formed between the two first clamping parts 3211 for supplying The first pinch channel through which the cathode pole piece a3 passes. At least one of the two first clamping members 3211 can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the cathode pole piece a3.
  • the second clamping assembly 324 has two second clamping parts 3241 arranged oppositely, and a second clamping part for passing the cathode electrode piece a3 is formed between the two second clamping parts 3241. aisle. At least one of the two second clamping members 3241 can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the cathode pole piece a3.
  • the first cutting assembly 322 has two first cutting knives 3221 arranged opposite to each other, and a first cutting channel through which the cathode electrode piece a3 passes is formed between the two first cutting knives 3221 .
  • One of the two first cutters 3221 can be controlled to approach or move away from the other, so as to realize the cutting action of cutting the cathode sheet a3.
  • the first cutting assembly 322 can also adopt other structures, such as a structure in which a cutter is used to cut the cathode electrode sheet a3 along the width direction of the cathode electrode sheet a3, as long as it can It only needs to cut off the cathode sheet a3, which is not limited here.
  • the first adhesive assembly 323 has two oppositely arranged first adhesive members 3231, and a first adhesive channel through which the cathode sheet a3 passes is formed between the two first adhesive members 3231.
  • the two first glue-absorbing parts 3231 are both used to absorb the adhesive tape. It can be understood that, when one-sided adhesive application is adopted, one of the first glue-absorbing parts 3231 absorbs the adhesive tape, and the other first adhesive-absorbing part 3231 does not absorb the adhesive tape. When using double-sided glue application, the two first glue-absorbing parts 3231 both absorb the adhesive tape. When sticking the long adhesive tape and the short adhesive tape, one of the first adhesive absorbing parts 3231 absorbs a first adhesive tape f1, and the other first adhesive absorbing part 3231 absorbs the second adhesive tape f2 and the third adhesive tape f3.
  • the two first glue-absorbing parts 3231 can be controlled to approach or move away from each other, so that the adhesive tape can be adhered to the first upstream cut-off end d1 and the first downstream cut-off end d2 of the cathode electrode piece a3.
  • the winding equipment is not limited to the process of cutting, separating, and then glueing and connecting the cathode sheet a3.
  • the anode pole piece a4 can also be cut off, separated, and then glued and connected.
  • the winding equipment further includes a second pole piece processing device 42 , and the second pole piece processing device 42 is arranged between the film doubling device 50 and the fourth unwinding device 41 .
  • the second pole piece processing device 42 is used to cut off the passing anode pole piece a4, and the second upstream cut-off end d3 (see FIG. 8 ) and the second downstream cut-off end d4 (see FIG.
  • the cutting device 80 is used to cut off the first diaphragm a1, the first tape portion on the cathode electrode sheet a3, the second diaphragm a2, and the second tape portion on the anode electrode sheet a4 at one time, and the combined material tape a5 after cutting
  • the first upstream cut-off end d1 and the first downstream cut-off end d2 of the cathode pole piece a3 are still wrapped by tape
  • the second upstream cut-off end d3 and the second downstream cut-off end d4 of the anode pole piece a4 are also still wrapped by tape, In this way, the exposure of the burrs on the first upstream cut end d1, the first downstream cut end d2, the second upstream cut end d3 and the second downstream cut end d4 is avoided, thereby preventing the burrs from adversely affecting the quality and safety of the cell, that is, It is beneficial to improve the quality and safety of the electric core.
  • the distance between the first upstream cut-off end d1 and the first downstream cut-off end d2 of the cathode pole piece a3 is the first distance
  • the second upstream cut-off end d3 and the second upstream cut-off end d3 of the anode pole piece a4 are The distance between the second downstream cut ends d4 is the second distance.
  • the first spacing is greater than the second spacing, so that at the end of the wound battery core, the first upstream cut-off end d1 of the cathode pole piece a3 and the second upstream cut-off end d3 of the anode pole piece a4 are misaligned with each other, and the cathode pole piece The first upstream cut-off end d1 of the piece a3 is wrapped by the anode pole piece a4.
  • the second pole piece processing device 42 includes a third clamping assembly 421 , a second cutting assembly 422 , a second gluing assembly 423 and a fourth clamping assembly 424 arranged sequentially from upstream to downstream. Both the third clamping assembly 421 and the fourth clamping assembly 424 are used to clamp the passing anode pole piece a4, and both can move downstream, and the second cutting assembly 422 is used to cut off the passing anode pole piece a4 and form the above-mentioned A second upstream cut-off end d3 and a second downstream cut-off end d4.
  • the third pinch assembly 421 and the fourth pinch assembly 424 move downstream, they can respectively drive the second upstream cut-off end d3 and the second downstream cut-off end d4 of the anode pole piece a4 to move to the second gluing assembly 423 and separated from each other.
  • the second gluing component 423 is used to stick the tape to the second upstream cut end d3 and the second downstream cut end d4 of the anode pole piece a4, so that the second upstream cut end d3 and the second downstream cut end d4 are connected by the tape.
  • the moving distance of the fourth clamping assembly 424 is greater than the moving distance of the third clamping assembly 421, that is, the moving distance of the second downstream cutting end d4 is greater than the moving distance of the second upstream cutting end d3, so as to reach the second glue
  • the second upstream cut-off end d3 and the second downstream cut-off end d4 are spaced apart from each other.
  • the second gluing component 423 is used to bond the tape f to the second upstream cut-off end d3 and the second downstream cut-off end d4 from one side of the anode sheet a4, thereby utilizing
  • the tape f pasted on one side connects the second upstream cut end d3 and the second downstream cut end d4 of the anode pole piece a4.
  • the cathode pole piece a3, the second diaphragm a2 and the anode pole piece a4 are brought together by the film combining device 50, since the second adhesive tape part of the anode pole piece a4 has only one layer of tape, the combined material belt formed by bringing them together a5 has a thinner thickness at the second adhesive tape portion, which is beneficial to cutting by the cutting device 80, and the cutting quality is better.
  • the second adhesive assembly 423 is used to bond two adhesive tapes f to the second upstream cut-off end d3 and the second downstream cut-off end from both sides of the anode sheet a4 respectively d4, that is, use two tapes f on both sides of the anode piece a4 to connect the second upstream cut end d3 and the second downstream cut end d4, so that the second upstream cut end d3 and the second downstream cut end d4 are firmly connected.
  • the second tape portion on the anode tab a4 has two layers of tape.
  • the adhesive tape includes a first adhesive tape f1 , a second adhesive tape f2 and a third adhesive tape f3 .
  • the second adhesive assembly 423 is used to bond the first adhesive tape f1 to the second upstream cut-off end d3 and the second downstream cut-off end d4 from the first side of the anode pole piece a4, and to attach the second adhesive tape f2 to the anode pole piece a4.
  • the second side is bonded to the second upstream cut end d3 and the first tape f1
  • the third tape f3 is bonded to the second downstream cut end d4 and the first tape f1 from the second side of the anode sheet a4.
  • the second tape part is the part of the first tape f1 located between the second tape f2 and the third tape f3, that is, the second tape parts each have a layer of tape.
  • a long adhesive tape i.e. the first adhesive tape f1
  • two short adhesive tapes i.e.
  • the second adhesive tape f2 and the third adhesive tape f3) are used to connect the second upstream cut-off end d3 and the second downstream cut-off end d4, on the one hand making the second
  • the upstream cut-off end d3 and the second downstream cut-off end d4 are firmly connected, and on the other hand, the thickness of the position between the two short tapes on the anode pole piece a4 in the combined material tape a5 is thinner (that is, the thickness of the second tape portion is thinner ), it is beneficial for the cutting device 80 to cut off the combined material tape a5 at the position between the two short tapes (that is, at the second tape portion), so as to ensure the cutting quality.
  • the side of the first adhesive tape f1 facing the anode sheet a4 has a first glue-coated area, a non-glue-coated area and a second glue-coated area in sequence.
  • the first glued area is bonded to the second downstream cut end d4, and the second glued area is bonded to the second upstream cut end d3.
  • One end of the third adhesive tape f3 is bonded to the second downstream cut end d4, and the other end is bonded to the first glued area.
  • One end of the second adhesive tape f2 is bonded to the second upstream cut-off end d3, and the other end is bonded to the second glued area.
  • the area between the first adhesive tape f1 corresponding to the second adhesive tape f2 and the third adhesive tape f3 is a non-adhesive area, so as to prevent the first adhesive tape f1 from adhering to other components during tape running.
  • the third clamping assembly 421 has two third clamping parts 4211 arranged oppositely, and the anode is formed between the two third clamping parts 4211.
  • At least one of the two third clamping members 4211 can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the anode pole piece a4.
  • the fourth clamping assembly 424 has two oppositely arranged fourth clamping parts 4241, and a fourth clamping part is formed between the two fourth clamping parts 4241 for the passage of the anode pole piece a4. aisle. At least one of the two fourth clamping members 4241 can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the anode pole piece a4.
  • the second cutting assembly 422 has two second cutting knives 4221 arranged opposite to each other, and a second cutting channel through which the anode piece a4 passes is formed between the two second cutting knives 4221 .
  • One of the two second cutters 4221 can be controlled to approach or move away from the other, so as to realize the cutting action of cutting off the anode pole piece a4.
  • the second cutting assembly 422 may also adopt other structures, such as a structure in which the anode pole piece a4 is cut along the width direction of the anode pole piece a4 by using a cutter, as long as it can It only needs to cut off the anode pole piece a4, which is not limited here.
  • the second adhesive component 423 has two second glue-absorbing parts 4231 arranged oppositely, and a second glue-applying channel through which the anode sheet a4 passes is formed between the two second glue-absorbing parts 4231.
  • the two second glue-absorbing parts 4231 are both used to absorb the adhesive tape. It can be understood that, when one-sided adhesive application is adopted, one of the second glue-absorbing parts 4231 absorbs the adhesive tape, and the other second adhesive-absorbing part 4231 does not absorb the adhesive tape. When double-sided glue application is adopted, the two second glue-absorbing parts 4231 both absorb the adhesive tape. When sticking the long adhesive tape and the short adhesive tape, one of the second adhesive absorbing parts 4231 absorbs the first adhesive tape f1, and the other second adhesive absorbing part 4231 absorbs the second adhesive tape f2 and the third adhesive tape f3.
  • the two second glue-absorbing parts 4231 can be controlled to approach or move away from each other, so as to stick the adhesive tape between the second upstream cut-off end d3 and the second downstream cut-off end d4 of the anode sheet a4.
  • the winding equipment further includes a first feeding device 90 a arranged between the film doubling device 50 and the first pole piece processing device 32 .
  • the first feeding device 90a includes a first feeding assembly 91a, the first feeding assembly 91a has two oppositely arranged first feeding rollers 911a, and a cathode electrode is formed between the two first feeding rollers 911a. At least one of the two first feeding rollers 911a can be controlled to approach or move away from the other in the first feeding channel through which the sheet a3 passes, and both of them can rotate around their own axes.
  • the two first feeding rollers 911a are mutually Approaching until the cathode pole piece a3 is clamped, the two first feeding rollers 911a rotate in opposite directions around their own axes, thereby transporting the cathode pole piece a3 downstream until the starting end of the cathode pole piece a3 passes through the film combining device 50 in sequence And the slit of the rolling needle 62 located in the first station b1.
  • one of the two first feeding rollers 911a is a driving roller, and the other is a driven roller.
  • the driving roller is driven and Rotate around its own axis, thereby driving the driven roller to reversely rotate around its own axis (for example, when the driving roller rotates clockwise, the driven roller rotates counterclockwise), thereby driving the cathode pole piece a3 to pass through the first feeding channel and to It moves downstream, and then sequentially passes through the film doubling device 50 and the slit of the winding needle 62 at the first station b1.
  • the two first feeding rollers 911a can also be driving rollers, as long as the cathode sheet a3 can be transported downstream and passed through the film combining device 50 and the first station b1 in sequence.
  • the slit of the winding needle 62 is sufficient, and is not limited here.
  • the two first feed rollers 911a of the first feed assembly 91a can be controlled to move axially along itself, so as to drive the cathode sheet a3 clamped by the two first feed rollers 911a for deflection correction.
  • the first feeding device 90a further includes a first clamping component 93a and a first cutting component 92a.
  • the first clamping assembly 93a is arranged upstream of the first feeding assembly 91a, and the first cutting assembly 92a is arranged between the first clamping assembly 93a and the first feeding assembly 91a.
  • the first clamping assembly 93a is used to clamp or loosen the passing cathode sheet a3, and can be controlled to approach or move away from the first cutting assembly 92a, and the first cutting assembly 92a is used to cut the passing cathode sheet a3.
  • the first clamping component 93a clamps the passing cathode piece a3 and moves toward the first cutting component 92a, so that the starting end of the cathode piece a3 penetrates the first cutting component 92a. Then use the first cutting assembly 92a to cut off the cathode pole piece a3, so as to remove the waste material section at the starting end of the cathode pole piece a3. Then, the first clamping component 93a continues to move toward the first cutting component 92a, so that the starting end of the cathode electrode piece a3 passes through the first cutting component 92a and the first feeding channel of the first feeding component 91a in sequence.
  • the two first feeding rollers 911a of the first feeding assembly 91a clamp the cathode sheet a3, and the first clamping assembly 93a releases the cathode sheet a3 and returns to the initial position.
  • the two first feeding rollers 911a move along the axial direction to rectify the deviation, and then rotate in opposite directions after the deviation is corrected, so as to drive the cathode sheet a3 to move downstream until the starting end of the cathode sheet a3 passes through the film combining device 50 and the The slit of the rolling needle 62 located in the first station b1 completes the feeding action.
  • the first clamping assembly 93a has two opposite first clamping pieces 931a, a first clamping channel is formed between the two first clamping pieces 931a for the cathode pole piece a3 to pass through, and At least one of the two first clamping parts 931a can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the cathode electrode piece a3 in the first clamping channel.
  • the first cutting assembly 92a has two oppositely arranged third cutting knives, a third cutting channel is formed between the two third cutting knives for the cathode sheet a3 to pass through, and the two third cutting knives At least one of the knives can be controlled to approach or move away from the other, so as to realize the cutting of the cathode sheet a3 in the third cutting channel.
  • the first cutting component 92a may also adopt other forms of cutting structure, as long as it can cut the cathode sheet a3, there is no limitation here.
  • the winding equipment further includes a second feeding device 90b arranged between the film doubling device 50 and the second pole piece processing device 42 .
  • the second feeding device 90b includes a second feeding assembly 91b, the second feeding assembly 91b has two oppositely arranged second feeding rollers 911b, and the anode is formed between the two second feeding rollers 911b.
  • the second feeding channel through which the pole piece a4 passes at least one of the two second feeding rollers 911b can be controlled to approach or move away from the other, and both can rotate around their own axes.
  • the two second feeding rollers 911b are mutually Approaching until the anode pole piece a4 is clamped, the two second feeding rollers 911b rotate in opposite directions around their own axes, thereby transporting the anode pole piece a4 downstream until the starting end of the anode pole piece a4 passes through the film combining device 50 in sequence And the slit of the rolling needle 62 located in the first station b1.
  • one of the two second feeding rollers 911b is a driving roller, and the other is a driven roller.
  • the driving roller is driven and Rotate around its own axis, thereby driving the driven roller to reversely rotate around its own axis (for example, when the driving roller rotates clockwise, the driven roller rotates counterclockwise), thereby driving the anode pole piece a4 to go downstream through the second feeding channel Move, and finally pass through the film doubling device 50 and the slit of the rolling needle 62 located in the first station b1 in sequence.
  • the two second feeding rollers 911b can also be driving rollers, as long as the anode sheet a4 can be transported downstream and passed through the film combining device 50 and the first station b1 in sequence.
  • the slit of the winding needle 62 is sufficient, and is not limited here.
  • the two second feeding rollers 911b of the second feeding assembly 91b can controllably move along their own axial direction, so as to drive the anode sheet a4 clamped by the two second feeding rollers 911b to correct the deflection.
  • the second feeding device 90b further includes a second clamping component 93b and a second cutting component 92b.
  • the second clamping assembly 93b is arranged upstream of the second feeding assembly 91b, and the second cutting assembly 92b is arranged between the second clamping assembly 93b and the second feeding assembly 91b.
  • the second clamping component 93b is used to clamp or loosen the passing anode pole piece a4, and can be controlled to approach or move away from the second cutting component 92b, and the second cutting component 92b is used to cut off the passing anode pole piece a4.
  • the second clamping component 93b clamps the passing anode pole piece a4 and moves toward the second cutting component 92b, so that the starting end of the anode pole piece a4 penetrates the second cutting component 92b. Then use the second cutting assembly 92b to cut off the anode pole piece a4, so as to remove the waste material section at the starting end of the anode pole piece a4. Then, the second clamping component 93b continues to move towards the second cutting component 92b, so that the starting end of the anode pole piece a4 passes through the second cutting component 92b and the second feeding channel of the second feeding component 91b in sequence.
  • the two second feeding rollers 911b of the second feeding component 91b clamp the anode pole piece a4, and the second clamping component 93b releases the anode pole piece a4 and returns to the initial position.
  • the two second feeding rollers 911b move along the axial direction to rectify the deviation, and then rotate in opposite directions after the deviation is corrected, so as to drive the anode pole piece a4 to continue to move downstream until the starting end of the anode pole piece a4 passes through the film combining device 50 in sequence And the slit of the rolling needle 62 located in the first station b1, so as to complete the feeding action.
  • the second clamping assembly 93b has two oppositely disposed second clamping pieces 931b, and a second clamping channel through which the anode piece a4 passes is formed between the two second clamping pieces 931b, and At least one of the two second clamping members 931b can be controlled to approach or move away from the other, so as to achieve clamping or loosening of the anode piece a4 in the second clamping channel.
  • the second cutting assembly 92b has two opposite fourth cutting knives, a fourth cutting channel is formed between the two fourth cutting knives for the anode sheet a4 to pass through, and the two fourth cutting knives At least one of the knives can be controlled to approach or move away from the other, so as to realize the cutting of the anode sheet a4 in the fourth cutting channel.
  • the second cutting assembly 92b may also adopt other forms of cutting structures, as long as it can cut the anode sheet a4, there is no limitation here.
  • the film-forming device 50 has a first film-forming roller 51 and a second film-forming roller 52 oppositely arranged, and the first film-forming roller 51 and the second film-forming roller 51 and the second film-forming roller 51 between the film rolls 52 is formed a film-combining channel through which the first diaphragm a1 , the cathode electrode sheet a3 , the second diaphragm a2 and the anode electrode sheet a4 pass. At least one of the first film application roller 51 and the second film application roller 52 can be controlled to approach or move away from the other, and both the first film application roller 51 and the second film application roller 52 can rotate around their own axes .
  • the first diaphragm a1 and the second separator a2 output by the first unwinding device 10 and the third unwinding device 20 sequentially pass through the laminating channel and the slit of the winding needle 62 at the first station b1.
  • the first feeding device 90a and the second feeding device 90b respectively pass the starting ends of the cathode pole piece a3 and the anode pole piece a4 into the film-combining channel.
  • the first film forming roller 51 and the second film forming roller 52 are close to each other and clamp the first diaphragm a1, the cathode electrode sheet a3, the second diaphragm a2 and the anode electrode sheet a4, so that the first diaphragm a1, the cathode electrode sheet a3, the first diaphragm a1
  • the two diaphragms a2 and the anode pole pieces a4 are brought together to form a combined strip a5.
  • the winding needle 62 at the first station b1 rotates on its own, and under the frictional force of the first diaphragm a1 and the second diaphragm a2, the cathode pole piece a3 and the anode pole piece a4 are driven to follow the first diaphragm a1 and the second diaphragm a2 moves together, and then is wound on the winding needle 62, that is, the winding of the electric core is realized.
  • the first film application roller 51 and the second film application roller 52 are close to each other to the position where there is a certain gap between them, and the first film application roller 51 and the second film application roller 52 do not press Close the first diaphragm a1, the cathode pole piece a3, the second diaphragm a2 and the anode pole piece a4, as long as the first diaphragm a1, the cathode pole piece a3, the second diaphragm a2 and the anode pole piece a4 are brought together, so that the combined material strip a5 can It only needs to enter smoothly into the slit of the winding needle 62 at the first station b1, and it is not limited here.
  • the friction between the first diaphragm a1 and the second diaphragm a2 is not relied on during the feeding action, so that the starting ends of the cathode electrode piece a3 and the anode electrode piece a4 pass through the membrane channel and are located at the first The slit of the rolling needle 62 of a station b1; instead rely on the first feeding assembly 91a and the second feeding assembly 91b to transport the cathode sheet a3 and the anode sheet a4 downstream respectively, so that the cathode sheet a3 and the anode sheet a4 The starting end of the anode pole piece a4 sequentially passes through the merging channel and the slit of the winding needle 62 at the first station b1.
  • three winding needles 62 are installed on the turret 61 , and the three winding needles 62 are arranged at intervals along the rotation direction of the turret 61 .
  • the winding device 60 also has a third station b3, and the three winding needles 62 sequentially pass through the first station b1, the second station b2 and the third station b3 during the rotation of the turret 61 .
  • the needle rollers 62 when one of the needle rollers 62 is located at the first station b1, the other two needle rollers 62 are located at the second station b2 and the third station b3 respectively.
  • the first station b1 is a winding station, that is, the coiling needle 62 at the first station b1 rotates to form a battery cell
  • the second station b2 is a gluing station, that is, at the The battery cells on the rolling needle 62 of the second station b2 are attached with tail tape, so as to avoid the loosening of the battery cells
  • the third station b3 is the blanking station, that is, the battery cells on the rolling needle 62 of the third station b3 Carry out blanking.
  • the guide rollers 70 also include three, and the three guide rollers 70 are installed on the turret 61 to rotate together with the turret 61, and each guide roller 70 is located between two adjacent rolling needles 62. between, so that each time one of the rolling pins 62 arrives at the first station b1, there must be a guide roller 70 arriving between the first station b1 and the second station b2, for the first station b1 and the second station b1
  • the combined material strip a5 between the stations b2 is wound, that is, the combined material strip a5 is guided, so that the combined material strip a5 can enter the slit of the rolled needle 62 when the needle 62 reaching the first station b1 stretches out .
  • first station b1 and the second station b2 are included, and only two roll needles 62 may be installed on the turret 61 .
  • first station b1 is a winding station
  • second station b2 is a blanking station.

Abstract

本申请涉及一种卷绕设备。该卷绕设备包括：并膜装置，用于将途经的第一隔膜、阴极极片、第二隔膜和阳极极片并拢而形成组合料带；第一极片处理装置，用于切断途经的阴极极片，并将切断后形成的第一上游切断端和第一下游切断端彼此分离，且通过胶带将第一上游切断端和第一下游切断端连接；卷绕装置，包括转塔及至少两个卷针，转塔带动每一卷针依次途经第一工位和第二工位；及导向辊和切断装置，切断装置用于将途经的组合料带一次性切断；其中，位于第一工位的卷针随转塔转动至第二工位时，其中另一个卷针转动至第一工位，且位于第一工位与第二工位之间的组合料带绕经导向辊，使得位于第一工位的卷针能够夹持途经第一工位的组合料带。

Description

一种卷绕设备 技术领域
本申请涉及电池制造设备技术领域，更具体的说，涉及一种卷绕设备。
背景技术
电芯是锂离子电池的重要组成部分，一般由隔膜、阴极极片、隔膜、阳极极片四层料带卷绕形成电芯。然而，现有的卷绕设备不能实现连续卷绕，每卷绕一个电芯，需要两个极片入料装置分别将阳极极片和阴极极片插入卷针机构处，由于阳极极片和阴极极片的插片动作过程耗费时间长，严重影响电芯的卷绕效率。
发明内容
基于此，有必要针对现有技术中的卷绕设备每卷绕一个电芯均需要进行阳极极片和阴极极片的插片动作，耗费时间较长，严重影响电芯的卷绕效率的问题，提供一种改善上述缺陷的卷绕设备。
一种卷绕设备，包括：
第一放卷装置、第二放卷装置、第三放卷装置和第四放卷装置，分别用于输出第一隔膜、阴极极片、第二隔膜及阳极极片；
并膜装置，布置于所述第一放卷装置、第二放卷装置、第三放卷装置和第四放卷装置的下游，用于将途经的第一隔膜、阴极极片、第二隔膜和阳极极片并拢而形成组合料带；
第一极片处理装置，布置于所述第二放卷装置与所述并膜装置之间，用于切断途经的阴极极片，并将切断阴极极片后形成的第一上游切断端和第一下游切断端彼此分离，且通过胶带将第一上游切断端和第一下游切断端连接；第一上游切断端和第一下游切断端之间的胶带形成第一胶带部；
卷绕装置，包括转塔及安装于所述转塔上的至少两个卷针，所述转塔可转动地设置，以带动每一所述卷针依次途经第一工位和第二工位，所述第一工位位于所述并膜装置的下游；及
导向辊和切断装置，均布置于所述第一工位和所述第二工位之间，所述切断装置用于将途经的第一隔膜、阴极极片上的第一胶带部、第二隔膜和阳极极片一次性切断；
其中，位于所述第一工位的所述卷针随所述转塔转动至所述第二工位时，其中另一个所述卷针转动至所述第一工位，且位于所述第一工位与所述第二工位之间的组合料带绕经所述导向辊；在所述导向辊的导向作用下，使得位于所述第一工位的所述卷针能够夹持途经所述第一工位的组合料带。
在其中一个实施例中，所述第一极片处理装置包括由上游至下游依次布设的第一夹送组件、第一裁切组件、第一贴胶组件及第二夹送组件；
所述第一夹送组件和所述第二夹送组件均用于夹持途经的阴极极片，且均能够向下游移动，所述第一裁切组件用于切断途经的阴极极片并形成第一上游切断端和第一下游切断端；
其中，所述第一夹送组件和所述第二夹送组件向下游移动的过程中，能够分别带动第一上游切断端和第一下游切断端移动至所述第一贴胶组件处且彼此分离，所述第一贴胶组件用于通过胶带粘接第一上游切断端和第一下游切断端。
在其中一个实施例中，在所述第一夹送组件和所述第二夹送组件分别带动 第一上游切断端和第一下游切断端移动至所述第一贴胶组件处时，所述第二夹送组件的移动距离大于所述第一夹送组件的移动距离。
在其中一个实施例中，所述第一贴胶组件用于将胶带由阴极极片的一侧粘接第一上游切断端和第一下游切断端。
在其中一个实施例中，所述第一贴胶组件用于将两个胶带分别由阴极极片的两侧粘接第一上游切断端和第一下游切断端。
在其中一个实施例中，所述胶带包括第一胶带、第二胶带和第三胶带，所述第一贴胶组件用于将所述第一胶带由阴极极片的第一侧粘接第一上游切断端和第一下游切断端，并将所述第二胶带由阴极极片的第二侧粘接第一上游切断端和所述第一胶带，且将所述第三胶带由阴极极片的第二侧粘接第一下游切断端和所述第一胶带。
在其中一个实施例中，所述卷绕设备还包括第二极片处理装置，所述第二极片处理装置布置于所述并膜装置与所述第四放卷装置之间，用于切断途经的阳极极片，并将切断阳极极片后形成的第二上游切断端和第二下游切断端彼此分离，且通过胶带将第二上游切断端和第二下游切断端连接；第二上游切断端和第二下游切断端之间的胶带形成第二胶带部；
所述切断装置用于将途经的第一隔膜、阴极极片上的第一胶带部、第二隔膜及阳极极片上的第二胶带部一次性切断。
在其中一个实施例中，所述第二极片处理装置包括由上游至下游依次布设的第三夹送组件、第二裁切组件、第二贴胶组件及第四夹送组件；
所述第三夹送组件和所述第四夹送组件均用于夹持途经的阳极极片，且均能够向下游移动，所述第二裁切组件用于切断途经的阳极极片并形成第二上游切断端和第二下游切断端；
其中，所述第三夹送组件和所述第四夹送组件向下游移动的过程中，能够分别带动第二上游切断端和第二下游切断端移动至所述第二贴胶组件处且彼此分离，所述第二贴胶组件用于通过胶带粘接第二上游切断端和第二下游切断端。
在其中一个实施例中，在所述第三夹送组件和所述第四夹送组件分别带动第二上游切断端和第二下游切断端移动至所述第二贴胶组件处时，所述第四夹送组件的移动距离大于所述第三夹送组件的移动距离。
在其中一个实施例中，所述第二贴胶组件用于将胶带由阳极极片的一侧粘接第二上游切断端和第二下游切断端。
在其中一个实施例中，所述第二贴胶组件用于将两个胶带分别由阳极极片的两侧粘接第二上游切断端和第二下游切断端。
在其中一个实施例中，所述胶带包括第一胶带、第二胶带和第三胶带，所述第二贴胶组件用于将所述第一胶带由阳极极片的第一侧粘接第二上游切断端和第二下游切断端，并将所述第二胶带由阳极极片的第二侧粘接第二上游切断端和所述第一胶带，且将所述第三胶带由阳极极片的第二侧粘接第二下游切断端和所述第一胶带。
在其中一个实施例中，所述卷绕设备还包括布置于所述并膜装置与所述第一极片处理装置之间的第一入料装置；
所述第一入料装置包括第一入料组件，所述第一入料组件具有两个相对设置的第一入料辊，两个所述第一入料辊之间形成用于供阴极极片穿过的第一入料通道，两个所述第一入料辊中的至少一者可受控地相对另一者靠近或远离，且均绕自身轴线可转动。
在其中一个实施例中，两个所述第一入料辊均可受控地沿自身轴向移动，以带动被两个所述第一入料辊夹紧的阴极极片进行纠偏。
在其中一个实施例中，所述第一入料装置还包括第一夹持组件和第一切断组件，所述第一夹持组件布置于所述第一入料组件的上游，所述第一切断组件布置于所述第一夹持组件和所述第一入料组件之间；所述第一夹持组件用于夹紧或松开途经的阴极极片，且可受控地朝向所述第一切断组件靠近或远离，所述第一切断组件用于切断途经的阴极极片。
在其中一个实施例中，所述卷绕设备还包括布置于所述并膜装置与所述第四放卷装置之间的第二入料装置；
所述第二入料装置包括第二入料组件，所述第二入料组件具有两个相对设置的第二入料辊，两个所述第二入料辊之间形成用于供阳极极片穿过的第二入料通道，两个所述第二入料辊中的至少一者可受控地相对另一者靠近或远离，且均绕自身轴线可转动。
在其中一个实施例中，两个所述第二入料辊可受控地沿自身轴向移动，以带动被两个所述第二入料辊夹紧的阳极极片进行纠偏。
在其中一个实施例中，所述第二入料装置还包括第二夹持组件和第二切断组件，所述第二夹持组件布置于所述第二入料组件的上游，所述第二切断组件布置于所述第二夹持组件和所述第二入料组件之间；
所述第二夹持组件用于夹紧或松开途经的阳极极片，且可受控地朝向所述第二切断组件靠近或远离，所述第二切断组件用于切断途经的阳极极片。
在其中一个实施例中，所述并膜装置具有相对设置的所述第一并膜辊和所述第二并膜辊，所述第一并膜辊和所述第二并膜辊之间形成供第一隔膜、阴极极片、第二隔膜和阳极极片穿过的并膜通道；所述第一并膜辊和所述第二并膜辊的其中至少一者可受控地相对另一者靠近或远离，且所述第一并膜辊和所述第二并膜辊均绕自身轴线可转动。
在其中一个实施例中，所述转塔上安装有三个所述卷针，三个所述卷针沿所述转塔的旋转方向间隔布设；所述卷绕装置还具有第三工位，三个所述卷针随所述转塔转动的过程中依次途经所述第一工位、所述第二工位和所述第三工位；当其中一个所述卷针位于所述第一工位时，其余两个所述卷针分别位于所述第二工位和所述第三工位；
所述导向辊设置为三个，每相邻两个所述卷针之间均具有所述导向辊。
上述卷绕设备，第一放卷装置、第二放卷装置、第三放卷装置及第四放卷装置分别放卷输出的第一隔膜、阴极极片、第二隔膜及阳极极片被并膜装置并拢而形成组合料带，被并拢后形成的组合料带到达第一工位的卷针。位于第一工位的卷针自转而将组合料带卷绕形成电芯。
当一个电芯卷绕完成后，第一工位的卷针停止自转，并随转塔转动至第二工位，同时另一卷针随转塔转动至第一工位。此时，由于转塔的转动，使得位于第一工位和第二工位之间的组合料带绕在导向辊上，在导向辊的导向作用下，途经第一工位的组合料带与位于第一工位上的卷针的狭缝对齐。控制位于第一工位的卷针伸出，使得途经第一工位的组合料带进入该卷针的狭缝内，进而该组合料带被卷针夹持固定。然后，切断装置将途经第一工位和第二工位之间的组合料带切断，使得位于第二工位的卷针上的电芯与组合料带分离，以便于对该卷针上的电芯进行后续处理并下料。并且，由于被并膜装置并拢形成的组合料带位于第一工位的卷针的狭缝内，从而可直接进行下一电芯的卷绕成型，无需再对阴极极片和阳极极片进行插片动作。也就是说，当一个电芯成型完成后，无需再进行插片动作(即将阴极极片和阳极极片的起始端插入至并膜装置)，即可再次进行下一个电芯的卷绕，大大减少了成型两个电芯之间的过渡时间，提高了生产效率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其它的附图。
图1为本申请一实施例中卷绕设备的结构示意图；
图2为图1所示的卷绕设备的结构示意图(电芯卷绕完成的卷针由第一工位转动至第二工位)；
图3为图1所示的卷绕设备的第一极片处理装置的贴胶方式的示意图；
图4为图1所示的卷绕设备的第一极片处理装置的另一贴胶方式的示意图；
图5为图1所示的卷绕设备的第一极片处理装置的又一贴胶方式的示意图；
图6为本申请另一实施例中卷绕设备的结构示意图；
图7为图6所示的卷绕设备的结构示意图(电芯卷绕完成的卷针由第一工位转动至第二工位)；
图8为图6所示的卷绕设备的第二极片处理装置的贴胶方式的示意图；
图9为图6所示的卷绕设备的第二极片处理装置的另一贴胶方式的示意图；
图10为图6所示的卷绕设备的第二极片处理装置的又一贴胶方式的示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是 全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
请参阅图1及图2，本申请一实施例提供的一种卷绕设备，包括第一放卷装置10、第二放卷装置31、第三放卷装置20、第四放卷装置41、第一极片处理装置32、并膜装置50、卷绕装置60、导向辊70及切断装置80。第一放卷装置10用于向下游输出第一隔膜a1，第二放卷装置31用于向下游输出阴极极片a3，第三放卷装置20用于向下游输出第二隔膜a2，第四放卷装置41用于向下游输出阳极极片a4。
并膜装置50布置于第一放卷装置10、第二放卷装置31、第三放卷装置20和第四放卷装置41的下游，用于将途经的第一隔膜a1、阴极极片a3、第二隔膜a2及阳极极片a4并拢而形成组合料带a5。该第一极片处理装置32布置于第二放卷装置31与并膜装置50之间，以切断途经的阴极极片a3，并将切断阴极 极片a3形成的第一上游切断端d1(见图3)和第一下游切断端d2(见图3)彼此分离，且通过胶带将阴极极片a3的第一上游切断端d1和第一下游切断端d2重新连接。第一上游切断端d1和第一下游切断端d2之间的胶带形成第一胶带部。
卷绕装置60包括转塔61及安装于转塔61上的至少两个卷针62，且每一卷针62相对转塔61可伸出或缩回。转塔61可转动地设置，且该至少两个卷针62随转塔61转动的过程中依次途经第一工位b1和第二工位b2，第一工位b1位于并膜装置50的下游，使得经过并膜装置50并拢后的组合料带a5输送到达第一工位b1的卷针62上。导向辊70布置于第一工位b1和第二工位b2之间，用于供第一工位b1和第二工位b2之间的组合料带a5绕经。切断装置80布置于第一工位b1和第二工位b2之间，以将途经的第一隔膜a1、阴极极片a3上的第一胶带部、第二隔膜a2及阳极极片a4一次性切断。
其中，位于第一工位b1的卷针62随转塔61转动至第二工位b2时，其中另一个卷针62转动至第一工位b1，且位于第一工位b1和第二工位b2之间的组合料带a5绕在导向辊70上，以使位于第一工位b1的卷针62上的狭缝与途经第一工位b1的组合料带a5对齐，使得位于第一工位b1的卷针62伸出时途经第一工位b1的组合料带a5能够进入该卷针62的狭缝内而被夹紧固定，方便后续进行卷绕。
上述卷绕设备，第一放卷装置10、第二放卷装置31、第三放卷装置20及第四放卷装置41分别放卷输出的第一隔膜a1、阴极极片a3、第二隔膜a2及阳极极片a4被并膜装置50并拢而形成组合料带a5，被并拢后形成的组合料带a5到达第一工位b1的卷针62。位于第一工位b1的卷针62自转而将组合料带a5卷绕形成电芯。
当一个电芯卷绕完成后，第一工位b1的卷针62停止自转，并随转塔61转动至第二工位b2，同时另一卷针62随转塔61转动至第一工位b1。此时，由于转塔61的转动，使得位于第一工位b1和第二工位b2之间的组合料带a5绕在导向辊70上，在导向辊70的导向作用下，途经第一工位b1的组合料带a5与位于第一工位b1上的卷针62的狭缝对齐。控制位于第一工位b1的卷针62伸出，使得途经第一工位b1的组合料带a5进入该卷针62的狭缝内，进而该组合料带a5被卷针62夹持固定。然后，切断装置80将途经第一工位b1和第二工位b2之间的组合料带a5切断，使得位于第二工位b2的卷针62上的电芯与组合料带a5分离，以便于对该卷针62上的电芯进行后续处理并下料。并且，由于被并膜装置50并拢形成的组合料带a5位于第一工位b1的卷针62的狭缝内，从而可直接进行下一电芯的卷绕成型，无需再对阴极极片a3和阳极极片a4进行插片动作。也就是说，当一个电芯成型完成后，无需再进行插片动作(即将阴极极片a3和阳极极片a4的起始端插入至并膜装置50)，即可再次进行下一个电芯的卷绕，大大减少了成型两个电芯之间的过渡时间，提高了生产效率。
需要说明的是，阴极极片a3在进入并膜装置50之前，第一极片处理装置32首先将途经的阴极极片a3切断，然后将切断阴极极片a3形成的第一上游切断端d1和第一下游切断端d2分离(即彼此间隔一定的距离)，再然后利用胶带将分离后的第一上游切断端d1和第一下游切断端d2粘接。该第一上游切断端d1和第一下游切断端d2之间的胶带形成第一胶带部。如此，切断装置80由胶带处将组合料带a5切断，即切断第一隔膜a1、阴极极片a3上的第一胶带部、第二隔膜a2及阳极极片a4，切断组合料带a5后的阴极极片a3的第一上游切断端d1和第一下游切断端d2依然被胶带包裹，避免第一上游切断端d1和第一下游切断端d2的毛刺外露，进而避免毛刺对电芯的质量和安全性造成不良影响， 即有利于提高电芯的质量和安全性。
还需要说明的是，在插片动作中容易出现极片插入位置不准确的现象，严重影响电芯的质量。在本申请的卷绕设备中，在成型两个电芯之间无需进行插片动作，从而避免了出现极片插入位置不准确的现象，进而有利于提高电芯的质量。可以理解的是，当对卷针62上的电芯进行下料时，卷针62相对转塔61缩回，从而实现从电芯中抽出。
还需要说明的是，在一较佳的实施例中，并膜装置50可按照第一隔膜a1、阴极极片a3、第二隔膜a2及阳极极片a4的顺序依次并拢。在另一个实施例中，并膜装置50也可按照第一隔膜a1、阳极极片a4、第二隔膜a2及阴极极片a3的顺序依次并拢。
具体到实施例中，每一卷针具有第一外针、第一内针、第二外针和第二内针。第一外针和第二外针相对设置，且彼此背离的一侧表面组合形成用于卷绕电芯的外轮廓面。第一内针设置于第一外针朝向第二外针的一侧，第二内针设置于第二外针朝向第一外针的一侧，利用该第一内针和第二内针之间形成上述狭缝，且通过第一内针和第二内针相对移动以夹紧狭缝内的组合料带a5。需要说明的是，卷针的伸出指的是：第一外针和第二外针沿轴向移动使得组合料带a5进入第一内针和第二内针之间的狭缝内。卷针的缩回指的是：第一外针和第二外针沿轴向反向移动使得组合料带a5从第一内针和第二内针之间的狭缝退出。
本申请的实施例中，第一极片处理装置32包括由上游至下游依次布设的第一夹送组件321、第一裁切组件322、第一贴胶组件323及第二夹送组件324。第一夹送组件321和第二夹送组件324均用于夹持途经的阴极极片a3，且均能够向下游移动。第一裁切组件322用于切断途经的阴极极片a3并形成上述第一 上游切断端d1和第一下游切断端d2。其中，第一夹送组件321和第二夹送组件324向下游移动的过程中，能够分别带动阴极极片a3的第一上游切断端d1和第一下游切断端d2移动至第一贴胶组件323处且彼此分离。第一贴胶组件323用于将胶带粘贴至阴极极片a3的第一上游切断端d1和第一下游切断端d2，使得第一上游切断端d1和第一下游切断端d2通过该胶带连接。
具体到实施例中，在第一夹送组件321和第二夹送组件324分别带动阴极极片a3的第一上游切断端d1和第一下游切断端d2移动至第一贴胶组件323处时，第二夹送组件324的移动距离大于第一夹送组件321的移动距离，即第一下游切断端d2移动的距离大于第一上游切断端d1移动的距离，从而使得到达第一贴胶组件323处时，第一上游切断端d1和第一下游切断端d2彼此间隔。
请参见图3所示，具体到实施例中，第一贴胶组件323用于将胶带f由阴极极片a3的一侧粘接第一上游切断端d1和第一下游切断端d2，从而利用单侧粘贴的胶带f连接阴极极片a3的第一上游切断端d1和第一下游切断端d2。通过并膜装置50将第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4并拢后，由于阴极极片a3的第一胶带部只有一层胶带，因此该并拢后的组合料带a5在第一胶带部处厚度较薄，有利于切断装置80进行切断，裁切质量较好。
请参见图4所示，在另一实施例中，第一贴胶组件323用于将两个胶带f分别由阴极极片a3的两侧粘接第一上游切断端d1和第一下游切断端d2，从而利用阴极极片a3的两侧的两个胶带f连接第一上游切断端d1和第一下游切断端d2，使得第一上游切断端d1和第一下游切断端d2连接牢靠。此时，阴极极片a3上的第一胶带部具有两层胶带。
请参见图5所示，在又一实施例中，胶带包括第一胶带f1、第二胶带f2及第三胶带f3。第一贴胶组件323用于将第一胶带f1由阴极极片a3的第一侧粘 接第一上游切断端d1和第一下游切断端d2，并将第二胶带f2由阴极极片a3的第二侧粘接第一上游切断端d1和第一胶带f1，且将第三胶带f3由阴极极片a3的第二侧粘接第一下游切断端d2和第一胶带f1。其中，阴极极片a3的第一侧与第二侧彼此背离。第一胶带部为第一胶带f位于第二胶带f2与第三胶带f3之间的部分，即第一胶带部仅具有一层胶带。如此，利用一个长胶带(即第一胶带f1)和两个短胶带(即第二胶带f2和第三胶带f3)连接第一上游切断端d1和第一下游切断端d2，一方面使得第一上游切断端d1和第一下游切断端d2连接牢靠，另一方面使得被并拢后的组合料带a5中阴极极片a3上的两个短胶带之间的位置厚度较薄(即第一胶带部的厚度较薄)，有利于切断装置80由两个短胶带之间的位置将组合料带a5切断(即切断第二胶带部)，确保裁切质量。
进一步地，第一胶带f1的朝向阴极极片a3的一侧依次具有第一涂胶区域、非涂胶区域及第二涂胶区域。第一涂胶区域与第一下游切断端d2粘接，第二涂胶区域与第一上游切断端d1粘接。第三胶带f3的一端与第一下游切断端d2粘接，另一端与第一涂胶区域粘接。第二胶带f3的一端与第一上游切断端d1粘接，另一端与第二涂胶区域粘接。如此，第一胶带f1对应于第二胶带f2和第三胶带f3之间的区域即为非涂胶区域，从而避免第一胶带f1在走带过程中与其他元件粘连。
请继续参见图1及图2所示，具体到实施例中，第一夹送组件321具有两个相对布设的第一夹紧件3211，两个第一夹紧件3211之间形成用于供阴极极片a3穿过的第一夹送通道。两个第一夹紧件3211的其中至少一者可受控地朝向另一者靠近或远离，从而实现对阴极极片a3的夹紧或松开。
具体到实施例中，第二夹送组件324具有两个相对布设的第二夹紧件3241，两个第二夹紧件3241之间形成用于供阴极极片a3穿过的第二夹送通道。两个 第二夹紧件3241的其中至少一者可受控地朝向另一者靠近或远离，从而实现对阴极极片a3的夹紧或松开。
具体到实施例中，第一裁切组件322具有两个相对布设的第一切刀3221，两个第一切刀3221之间形成供阴极极片a3穿过的第一裁切通道。两个第一切刀3221的其中一者可受控地朝向另一者靠近或远离，从而实现切断阴极极片a3的切断动作。需要说明的是，在其他实施例中，第一裁切组件322也可采用其他结构，例如利用一个切刀沿阴极极片a3的宽幅方向对阴极极片a3进行裁切的结构，只要能够将阴极极片a3切断即可，在此不作限定。
具体到实施例中，第一贴胶组件323具有两个相对布设的第一吸胶件3231，两个第一吸胶件3231之间形成供阴极极片a3穿过的第一贴胶通道，且两个第一吸胶件3231均用于吸附胶带。可以理解的是，当采用单侧贴胶时，其中一个第一吸胶件3231吸附胶带，另一第一吸胶件3231不吸附胶带。当采用双侧贴胶时，两个第一吸胶件3231均吸附胶带。当采用贴长胶带和短胶带的方式时，其中一个第一吸胶件3231吸附一个第一胶带f1，其中另一个第一吸胶件3231吸附第二胶带f2和第三胶带f3。
两个第一吸胶件3231可受控地彼此靠近或远离，从而实现将吸附的胶带粘接阴极极片a3的第一上游切断端d1和第一下游切断端d2。
需要说明的是，卷绕设备并不仅限于仅对阴极极片a3进行切断、分离、再贴胶连接的处理。在其他实施例中，阳极极片a4也可进行切断、分离、再贴胶连接的处理。请参见图6及图7所示，具体地，卷绕设备还包括第二极片处理装置42，该第二极片处理装置42布置于并膜装置50与第四放卷装置41之间。第二极片处理装置42用于切断途经的阳极极片a4，并将切断阳极极片a4后形 成的第二上游切断端d3(见图8)和第二下游切断端d4(见图8)彼此分离，且通过胶带将阳极极片a4的第二上游切断端d3和第二下游切断端d4连接。该第二上游切断端d3和第二下游切断端d4之间的胶带形成第二胶带部。切断装置80用于将途经的第一隔膜a1、阴极极片a3上的第一胶带部、第二隔膜a2及阳极极片a4上的第二胶带部一次性切断，切断后的组合料带a5中的阴极极片a3的第一上游切断端d1和第一下游切断端d2依然被胶带包裹，且阳极极片a4的第二上游切断端d3和第二下游切断端d4也依然被胶带包裹，从而避免第一上游切断端d1、第一下游切断端d2、第二上游切断端d3和第二下游切断端d4的毛刺外露，进而避免毛刺对电芯的质量和安全性造成不良影响，即有利于提高电芯的质量和安全性。
需要说明的是，在一个实施例中，阴极极片a3的第一上游切断端d1和第一下游切断端d2之间的间距为第一间距，阳极极片a4的第二上游切断端d3和第二下游切断端d4之间的间距为第二间距。该第一间距大于第二间距，使得在卷绕完成的电芯的收尾处，阴极极片a3的第一上游切断端d1与阳极极片a4的第二上游切断端d3彼此错位，且阴极极片a3的第一上游切断端d1被阳极极片a4包裹。
本申请的实施例中，第二极片处理装置42包括由上游至下游依次布设的第三夹送组件421、第二裁切组件422、第二贴胶组件423及第四夹送组件424。第三夹送组件421和第四夹送组件424均用于夹持途经的阳极极片a4，且均能够向下游移动，第二裁切组件422用于切断途经的阳极极片a4并形成上述第二上游切断端d3和第二下游切断端d4。其中，第三夹送组件421和第四夹送组件424向下游移动的过程中，能够分别带动阳极极片a4的第二上游切断端d3和第二下游切断端d4移动至第二贴胶组件423处且彼此分离。第二贴胶组件423用 于将胶带粘贴至阳极极片a4的第二上游切断端d3和第二下游切断端d4，使得第二上游切断端d3和第二下游切断端d4通过该胶带连接。
具体到实施例中，在第三夹送组件421和第四夹送组件424分别带动阳极极片a4的第二上游切断端d3和第二下游切断端d4移动至第二贴胶组件423处时，第四夹送组件424的移动距离大于第三夹送组件421的移动距离，即第二下游切断端d4移动的距离大于第二上游切断端d3的移动的距离，从而使得到达第二贴胶组件423处时，第二上游切断端d3和第二下游切断端d4彼此间隔。
请参见图8所示，具体到实施例中，第二贴胶组件423用于将胶带f由阳极极片a4的一侧粘接第二上游切断端d3和第二下游切断端d4，从而利用单侧粘贴的胶带f连接阳极极片a4的第二上游切断端d3和第二下游切断端d4。通过并膜装置50将第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4并拢后，由于阳极极片a4的第二胶带部只有一层胶带，因此并拢形成的组合料带a5在第二胶带部处厚度较薄，有利于切断装置80进行切断，裁切质量较好。
请参见图9所示，在另一实施例中，第二贴胶组件423用于将两个胶带f分别由阳极极片a4的两侧粘接第二上游切断端d3和第二下游切断端d4，即利用阳极极片a4的两侧的两个胶带f连接第二上游切断端d3和第二下游切断端d4，使得第二上游切断端d3和第二下游切断端d4连接牢靠。此时，阳极极片a4上的第二胶带部具有两层胶带。
请参见图10所示，在又一实施例中，胶带包括第一胶带f1、第二胶带f2及第三胶带f3。第二贴胶组件423用于将第一胶带f1由阳极极片a4的第一侧粘接第二上游切断端d3和第二下游切断端d4，并将第二胶带f2由阳极极片a4的第二侧粘接第二上游切断端d3和第一胶带f1，且将第三胶带f3由阳极极片a4的第二侧粘接第二下游切断端d4和第一胶带f1。其中，阳极极片a4的第一 侧与第二侧彼此背离。第二胶带部为第一胶带f1位于第二胶带f2与第三胶带f3之间的部分，即第二胶带部均具有一层胶带。如此，利用一个长胶带(即第一胶带f1)和两个短胶带(即第二胶带f2和第三胶带f3)连接第二上游切断端d3和第二下游切断端d4，一方面使得第二上游切断端d3和第二下游切断端d4连接牢靠，另一方面使得组合料带a5中阳极极片a4上的两个短胶带之间的位置厚度较薄(即第二胶带部的厚度较薄)，有利于切断装置80由两个短胶带之间的位置(即第二胶带部处)将组合料带a5切断，确保裁切质量。
进一步地，第一胶带f1的朝向阳极极片a4的一侧依次具有第一涂胶区域、非涂胶区域及第二涂胶区域。第一涂胶区域与第二下游切断端d4粘接，第二涂胶区域与第二上游切断端d3粘接。第三胶带f3的一端与第二下游切断端d4粘接，另一端与第一涂胶区域粘接。第二胶带f2的一端与第二上游切断端d3粘接，另一端与第二涂胶区域粘接。如此，第一胶带f1对应于第二胶带f2和第三胶带f3之间的区域即为非涂胶区域，从而避免第一胶带f1在走带过程中与其他元件粘连。
请参见图6至图7所示，具体到实施例中，第三夹送组件421具有两个相对布设的第三夹紧件4211，两个第三夹紧件4211之间形成用于供阳极极片a4穿过的第三夹送通道。两个第三夹紧件4211的其中至少一者可受控地朝向另一者靠近或远离，从而实现对阳极极片a4的夹紧或松开。
具体到实施例中，第四夹送组件424具有两个相对布设的第四夹紧件4241，两个第四夹紧件4241之间形成用于供阳极极片a4穿过的第四夹送通道。两个第四夹紧件4241的其中至少一者可受控地朝向另一者靠近或远离，从而实现对阳极极片a4的夹紧或松开。
具体到实施例中，第二裁切组件422具有两个相对布设的第二切刀4221， 两个第二切刀4221之间形成供阳极极片a4穿过的第二裁切通道。两个第二切刀4221的其中一者可受控地朝向另一者靠近或远离，从而实现切断阳极极片a4的切断动作。需要说明的是，在其他实施例中，第二裁切组件422也可采用其他结构，例如利用一个切刀沿阳极极片a4的宽幅方向对阳极极片a4进行裁切的结构，只要能够将阳极极片a4切断即可，在此不作限定。
具体到实施例中，第二贴胶组件423具有两个相对布设的第二吸胶件4231，两个第二吸胶件4231之间形成供阳极极片a4穿过的第二贴胶通道，且两个第二吸胶件4231均用于吸附胶带。可以理解的是，当采用单侧贴胶时，其中一个第二吸胶件4231吸附胶带，另一第二吸胶件4231不吸附胶带。当采用双侧贴胶时，两个第二吸胶件4231均吸附胶带。当采用贴长胶带和短胶带的方式时，其中一个第二吸胶件4231吸附一个第一胶带f1，其中另一个第二吸胶件4231吸附第二胶带f2和第三胶带f3。
两个第二吸胶件4231可受控地彼此靠近或远离，从而实现将吸附的胶带粘贴至阳极极片a4的第二上游切断端d3和第二下游切断端d4之间。
请参见图1及图6所示，本申请的实施例中，卷绕设备还包括布置于并膜装置50与第一极片处理装置32之间的第一入料装置90a。第一入料装置90a包括第一入料组件91a，该第一入料组件91a具有两个相对设置的第一入料辊911a，两个第一入料辊911a之间形成用于供阴极极片a3穿过的第一入料通道，两个第一入料辊911a中的至少一者可受控地相对另一者靠近或远离，且均绕自身轴线可转动。如此，当需要进行入料动作(即将阴极极片a3的起始端依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝)时，两个第一入料辊911a彼此靠近直至夹紧阴极极片a3，两个第一入料辊911a彼此绕自身轴线反向转动， 从而将阴极极片a3向下游输送，直至阴极极片a3的起始端依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝。
需要说明的是，两个第一入料辊911a的其中一个为主动辊，其中另一个为从动辊，当两个第一入料辊911a夹紧阴极极片a3时，主动辊被驱动而绕自身轴线转动，从而带动从动辊绕自身轴线反向转动(例如主动辊沿顺时针转动时，从动辊沿逆时针转动)，从而驱使阴极极片a3穿过第一入料通道并向下游移动，进而依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝。当然，在其他实施例中，两个第一入料辊911a也可均为主动辊，只要能够实现将阴极极片a3向下游输送并依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝即可，在此不作限定。
进一步地，第一入料组件91a的两个第一入料辊911a可受控地沿自身轴向移动，从而实现带动被两个第一入料辊911a夹紧的阴极极片a3进行纠偏。
具体到实施例中，第一入料装置90a还包括第一夹持组件93a和第一切断组件92a。第一夹持组件93a布置于第一入料组件91a的上游，第一切断组件92a布置于第一夹持组件93a和第一入料组件91a之间。第一夹持组件93a用于夹紧或松开途经的阴极极片a3，且可受控地朝向第一切断组件92a靠近或远离，第一切断组件92a用于切断途经的阴极极片a3。如此，当需要进行入料动作时，第一夹持组件93a夹紧途经的阴极极片a3，并朝向第一切断组件92a移动，使得阴极极片a3的起始端穿入第一切断组件92a。然后利用第一切断组件92a切断阴极极片a3，以去除阴极极片a3起始端的废料段。然后，第一夹持组件93a继续朝向第一切断组件92a移动，使得阴极极片a3的起始端依次穿过第一切断组件92a和第一入料组件91a的第一入料通道。然后，第一入料组件91a的两个第一入料辊911a夹紧阴极极片a3，第一夹持组件93a松开阴极极片a3并复 位至初始位置。两个第一入料辊911a沿轴向移动进行纠偏，纠偏到位后再彼此反向转动，从而带动阴极极片a3向下游移动，直至阴极极片a3的起始端依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝，从而完成入料动作。
更加具有地，第一夹持组件93a具有两个相对设置的第一夹持件931a，该两个第一夹持件931a之间形成供阴极极片a3穿过的第一夹持通道，且两个第一夹持件931a的其中至少一者可受控地朝向另一者靠近或远离，从而实现对第一夹持通道内的阴极极片a3的夹紧或松开。
更加具有地，第一切断组件92a具有两个相对设置的第三切刀，该两个第三切刀之间形成供阴极极片a3穿过的第三裁切通道，且两个第三切刀中的至少一者相对另一者可受控地靠近或远离，从而实现对第三裁切通道内的阴极极片a3的裁切。需要说明的是，在其他实施例中，第一切断组件92a也可采用其它形式的裁切结构，只要能够将阴极极片a3切断即可，在此不作限定。
本申请的实施例中，卷绕设备还包括布置于并膜装置50与第二极片处理装置42之间的第二入料装置90b。该第二入料装置90b包括第二入料组件91b，该第二入料组件91b具有两个相对设置的第二入料辊911b，两个第二入料辊911b之间形成用于供阳极极片a4穿过的第二入料通道，两个第二入料辊911b中的至少一者可受控地相对另一者靠近或远离，且均绕自身轴线可转动。如此，当需要进行入料动作(即将阳极极片a4的起始端依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝)时，两个第二入料辊911b彼此靠近直至夹紧阳极极片a4，两个第二入料辊911b彼此绕自身轴线反向转动，从而将阳极极片a4向下游输送，直至阳极极片a4的起始端依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝。
需要说明的是，两个第二入料辊911b的其中一个为主动辊，其中另一个为从动辊，当两个第二入料辊911b夹紧阳极极片a4时，主动辊被驱动而绕自身轴线转动，从而带动从动辊绕自身轴线反向转动(例如主动辊沿顺时针转动时，从动辊沿逆时针转动)，从而驱使阳极极片a4穿过第二入料通道向下游移动，并最终依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝。当然，在其他实施例中，两个第二入料辊911b也可均为主动辊，只要能够实现将阳极极片a4向下游输送并依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝即可，在此不作限定。
进一步地，第二入料组件91b的两个第二入料辊911b可受控地沿自身轴向移动，从而带动对被两个第二入料辊911b夹紧的阳极极片a4进行纠偏。
具体到实施例中，第二入料装置90b还包括第二夹持组件93b和第二切断组件92b。第二夹持组件93b布置于第二入料组件91b的上游，第二切断组件92b布置于第二夹持组件93b和第二入料组件91b之间。第二夹持组件93b用于夹紧或松开途经的阳极极片a4，且可受控地朝向第二切断组件92b靠近或远离，第二切断组件92b用于切断途经的阳极极片a4。如此，当需要进行入料动作时，第二夹持组件93b夹紧途经的阳极极片a4，并朝向第二切断组件92b移动，使得阳极极片a4的起始端穿入第二切断组件92b。然后利用第二切断组件92b切断阳极极片a4，以去除阳极极片a4起始端的废料段。然后，第二夹持组件93b继续朝向第二切断组件92b移动，使得阳极极片a4的起始端依次穿过第二切断组件92b和第二入料组件91b的第二入料通道。然后，第二入料组件91b的两个第二入料辊911b夹紧阳极极片a4，第二夹持组件93b松开阳极极片a4并复位至初始位置。两个第二入料辊911b沿轴向移动进行纠偏，纠偏到位后再彼此反向转动，从而带动阳极极片a4继续向下游移动，直至阳极极片a4的起始端 依次穿过并膜装置50和位于第一工位b1的卷针62的狭缝，从而完成入料动作。
更加具有地，第二夹持组件93b具有两个相对设置的第二夹持件931b，该两个第二夹持件931b之间形成供阳极极片a4穿过的第二夹持通道，且两个第二夹持件931b的其中至少一者可受控地朝向另一者靠近或远离，从而实现对第二夹持通道内的阳极极片a4的夹紧或松开。
更加具有地，第二切断组件92b具有两个相对设置的第四切刀，该两个第四切刀之间形成供阳极极片a4穿过的第四裁切通道，且两个第四切刀中的至少一者相对另一者可受控地靠近或远离，从而实现对第四裁切通道内的阳极极片a4的裁切。需要说明的是，在其他实施例中，第二切断组件92b也可采用其它形式的裁切结构，只要能够将阳极极片a4切断即可，在此不作限定。
请继续参见图1及图2所示，本申请的实施例中，并膜装置50具有相对设置的第一并膜辊51和第二并膜辊52，第一并膜辊51和第二并膜辊52之间形成供第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4穿过的并膜通道。第一并膜辊51和第二并膜辊52的其中至少一者可受控地相对另一者靠近或远离，且第一并膜辊51和第二并膜辊52均绕自身轴线可转动。如此，初始时，第一放卷装置10和第三放卷装置20输出的第一隔膜a1和第二隔离a2依次穿过并膜通道和位于第一工位b1的卷针62的狭缝。第一入料装置90a和第二入料装置90b分别将阴极极片a3和阳极极片a4的起始端穿入至并膜通道。第一并膜辊51和第二并膜辊52彼此靠近而夹紧第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4，使得第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4并拢而形成组合料带a5。此时，位于第一工位b1的卷针62自转，在第一隔膜a1和第二隔膜a2的摩擦力作用下，带动阴极极片a3和阳极极片a4跟随第一隔膜a1和第二隔膜a2一同移动，进而卷绕在卷针62上，即实现电芯的卷绕。
当然，在其它实施例中，第一并膜辊51和第二并膜辊52彼此靠近至二者之间存在一定间隙的位置，第一并膜辊51和第二并膜辊52并不压紧第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4，只要将第一隔膜a1、阴极极片a3、第二隔膜a2和阳极极片a4并拢，使得组合料带a5能够顺畅地进入位于第一工位b1的卷针62的狭缝即可，在此不作限定。此时，在进行入料动作时并不是依靠与第一隔膜a1和第二隔膜a2之间的摩擦力，使得阴极极片a3和阳极极片a4的起始端依次穿过并膜通道和位于第一工位b1的卷针62的狭缝；而是依靠第一入料组件91a和第二入料组件91b分别将阴极极片a3和阳极极片a4向下游的输送，使得阴极极片a3和阳极极片a4的起始端依次穿过并膜通道和位于第一工位b1的卷针62的狭缝。
本申请的实施例中，转塔61上安装有三个卷针62，三个卷针62沿转塔61的旋转方向间隔布设。卷绕装置60还具有第三工位b3，三个卷针62随转塔61转动的过程中依次途经第一工位b1、第二工位b2和第三工位b3。并且，当其中一个卷针62位于第一工位b1时，其余两个卷针62分别位于第二工位b2和第三工位b3。作为一种实施方式，第一工位b1为卷绕工位，即位于第一工位b1的卷针62自转而卷绕形成电芯；第二工位b2为贴胶工位，即在位于第二工位b2的卷针62上的电芯贴尾部胶带，从而避免电芯松散；第三工位b3为下料工位，即对位于第三工位b3的卷针62上的电芯进行下料。
具体到实施例中，导向辊70也包括三个，三个导向辊70均安装于转塔61上，以跟随转塔61一同旋转，并且，每一导向辊70位于相邻两个卷针62之间，使得每次其中一个卷针62到达第一工位b1时，必然有一个导向辊70到达第一工位b1和第二工位b2之间，以供第一工位b1和第二工位b2之间的组合料带a5绕经，即对组合料带a5进行导向，使得到达第一工位b1的卷针62伸出时组 合料带a5能够进入该卷针62的狭缝中。
需要说明的是，在其它实施例中，仅包括第一工位b1和第二工位b2，转塔61上也可只安装两个卷针62。此时，第一工位b1为卷绕工位，第二工位b2为下料工位。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种卷绕设备，其特征在于，包括：
    第一放卷装置、第二放卷装置、第三放卷装置和第四放卷装置，分别用于输出第一隔膜、阴极极片、第二隔膜及阳极极片；
    并膜装置，布置于所述第一放卷装置、第二放卷装置、第三放卷装置和第四放卷装置的下游，用于将途经的第一隔膜、阴极极片、第二隔膜和阳极极片并拢而形成组合料带；
    第一极片处理装置，布置于所述第二放卷装置与所述并膜装置之间，所述第一极片处理装置用于切断途经的阴极极片，并将切断阴极极片后形成的第一上游切断端和第一下游切断端彼此分离，且通过胶带将第一上游切断端和第一下游切断端连接；第一上游切断端和第一下游切断端之间的胶带形成第一胶带部；
    卷绕装置，包括转塔及安装于所述转塔上的至少两个卷针，所述转塔可转动地设置，以带动每一所述卷针依次途经第一工位和第二工位，所述第一工位位于所述并膜装置的下游；及
    导向辊和切断装置，均布置于所述第一工位和所述第二工位之间，所述切断装置用于将途经的第一隔膜、阴极极片上的第一胶带部、第二隔膜和阳极极片一次性切断；
    其中，位于所述第一工位的所述卷针随所述转塔转动至所述第二工位时，其中另一个所述卷针转动至所述第一工位，且位于所述第一工位与所述第二工位之间的组合料带绕经所述导向辊；在所述导向辊的导向作用下，使得位于所述第一工位的所述卷针能够夹持途经所述第一工位的组合料带。
  2. 根据权利要求1所述的卷绕设备，其特征在于，所述第一极片处理装置包括由上游至下游依次布设的第一夹送组件、第一裁切组件、第一贴胶组件及 第二夹送组件；
    所述第一夹送组件和所述第二夹送组件均用于夹持途经的阴极极片，且均能够向下游移动，所述第一裁切组件用于切断途经的阴极极片并形成第一上游切断端和第一下游切断端；
    其中，所述第一夹送组件和所述第二夹送组件向下游移动的过程中，能够分别带动第一上游切断端和第一下游切断端移动至所述第一贴胶组件处且彼此分离，所述第一贴胶组件用于通过胶带粘接第一上游切断端和第一下游切断端。
  3. 根据权利要求2所述的卷绕设备，其特征在于，在所述第一夹送组件和所述第二夹送组件分别带动第一上游切断端和第一下游切断端移动至所述第一贴胶组件处时，所述第二夹送组件的移动距离大于所述第一夹送组件的移动距离。
  4. 根据权利要求2所述的卷绕设备，其特征在于，所述第一贴胶组件用于将胶带由阴极极片的一侧粘接第一上游切断端和第一下游切断端。
  5. 根据权利要求2所述的卷绕设备，其特征在于，所述第一贴胶组件用于将两个胶带分别由阴极极片的两侧粘接第一上游切断端和第一下游切断端。
  6. 根据权利要求2所述的卷绕设备，其特征在于，所述胶带包括第一胶带、第二胶带和第三胶带，所述第一贴胶组件用于将所述第一胶带由阴极极片的第一侧粘接第一上游切断端和第一下游切断端，并将所述第二胶带由阴极极片的第二侧粘接第一上游切断端和所述第一胶带，且将所述第三胶带由阴极极片的第二侧粘接第一下游切断端和所述第一胶带。
  7. 根据权利要求1所述的卷绕设备，其特征在于，所述卷绕设备还包括布置于所述并膜装置与所述第四放卷装置之间的第二极片处理装置，所述第二极片处理装置用于切断途经的阳极极片，并将切断阳极极片后形成的第二上游切 断端和第二下游切断端彼此分离，且通过胶带将第二上游切断端和第二下游切断端连接；第二上游切断端和第二下游切断端之间的胶带形成第二胶带部；
    所述切断装置用于将途经的第一隔膜、阴极极片上的第一胶带部、第二隔膜及阳极极片上的第二胶带部一次性切断。
  8. 根据权利要求7所述的卷绕设备，其特征在于，所述第二极片处理装置包括由上游至下游依次布设的第三夹送组件、第二裁切组件、第二贴胶组件及第四夹送组件；
    所述第三夹送组件和所述第四夹送组件均用于夹持途经的阳极极片，且均能够向下游移动，所述第二裁切组件用于切断途经的阳极极片并形成第二上游切断端和第二下游切断端；
    其中，所述第三夹送组件和所述第四夹送组件向下游移动的过程中，能够分别带动第二上游切断端和第二下游切断端移动至所述第二贴胶组件处且彼此分离，所述第二贴胶组件用于通过胶带粘接第二上游切断端和第二下游切断端。
  9. 根据权利要求8所述的卷绕设备，其特征在于，在所述第三夹送组件和所述第四夹送组件分别带动第二上游切断端和第二下游切断端移动至所述第二贴胶组件处时，所述第四夹送组件的移动距离大于所述第三夹送组件的移动距离。
  10. 根据权利要求8所述的卷绕设备，其特征在于，所述第二贴胶组件用于将胶带由阳极极片的一侧粘接第二上游切断端和第二下游切断端。
  11. 根据权利要求8所述的卷绕设备，其特征在于，所述第二贴胶组件用于将两个胶带分别由阳极极片的两侧粘接第二上游切断端和第二下游切断端。
  12. 根据权利要求8所述的卷绕设备，其特征在于，所述胶带包括第一胶带、第二胶带和第三胶带，所述第二贴胶组件用于将所述第一胶带由阳极极片 的第一侧粘接第二上游切断端和第二下游切断端，并将所述第二胶带由阳极极片的第二侧粘接第二上游切断端和所述第一胶带，且将所述第三胶带由阳极极片的第二侧粘接第二下游切断端和所述第一胶带。
  13. 根据权利要求1至12任一项所述的卷绕设备，其特征在于，所述卷绕设备还包括布置于所述并膜装置与所述第一极片处理装置之间的第一入料装置；
    所述第一入料装置包括第一入料组件，所述第一入料组件具有两个相对设置的第一入料辊，两个所述第一入料辊之间形成用于供阴极极片穿过的第一入料通道，两个所述第一入料辊中的至少一者可受控地相对另一者靠近或远离，且均绕自身轴线可转动。
  14. 根据权利要求13所述的卷绕设备，其特征在于，两个所述第一入料辊均可受控地沿自身轴向移动，以带动被两个所述第一入料辊夹紧的阴极极片进行纠偏。
  15. 根据权利要求13所述的卷绕设备，其特征在于，所述第一入料装置还包括第一夹持组件和第一切断组件，所述第一夹持组件布置于所述第一入料组件的上游，所述第一切断组件布置于所述第一夹持组件和所述第一入料组件之间；所述第一夹持组件用于夹紧或松开途经的阴极极片，且可受控地朝向所述第一切断组件靠近或远离，所述第一切断组件用于切断途经的阴极极片。
  16. 根据权利要求1至12任一项所述的卷绕设备，其特征在于，所述卷绕设备还包括布置于所述并膜装置与所述第四放卷装置之间的第二入料装置；
    所述第二入料装置包括第二入料组件，所述第二入料组件具有两个相对设置的第二入料辊，两个所述第二入料辊之间形成用于供阳极极片穿过的第二入料通道，两个所述第二入料辊中的至少一者可受控地相对另一者靠近或远离， 且均绕自身轴线可转动。
  17. 根据权利要求16所述的卷绕设备，其特征在于，两个所述第二入料辊可受控地沿自身轴向移动，以带动被两个所述第二入料辊夹紧的阳极极片进行纠偏。
  18. 根据权利要求16所述的卷绕设备，其特征在于，所述第二入料装置还包括第二夹持组件和第二切断组件，所述第二夹持组件布置于所述第二入料组件的上游，所述第二切断组件布置于所述第二夹持组件和所述第二入料组件之间；
    所述第二夹持组件用于夹紧或松开途经的阳极极片，且可受控地朝向所述第二切断组件靠近或远离，所述第二切断组件用于切断途经的阳极极片。
  19. 根据权利要求1至12任一项所述的卷绕设备，其特征在于，所述并膜装置具有相对设置的所述第一并膜辊和所述第二并膜辊，所述第一并膜辊和所述第二并膜辊之间形成供第一隔膜、阴极极片、第二隔膜和阳极极片穿过的并膜通道；所述第一并膜辊和所述第二并膜辊的其中至少一者可受控地相对另一者靠近或远离，且所述第一并膜辊和所述第二并膜辊均绕自身轴线可转动。
  20. 根据权利要求1至12任一项所述的卷绕设备，其特征在于，所述转塔上安装有三个所述卷针，三个所述卷针沿所述转塔的旋转方向间隔布设；所述卷绕装置还具有第三工位，三个所述卷针随所述转塔转动的过程中依次途经所述第一工位、所述第二工位和所述第三工位；当其中一个所述卷针位于所述第一工位时，其余两个所述卷针分别位于所述第二工位和所述第三工位；
    所述导向辊设置为三个，每相邻两个所述卷针之间均具有所述导向辊。
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