WO2023197833A1 - 裁切装置、裁切方法及裁切设备 - Google Patents

裁切装置、裁切方法及裁切设备 Download PDF

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Publication number
WO2023197833A1
WO2023197833A1 PCT/CN2023/082569 CN2023082569W WO2023197833A1 WO 2023197833 A1 WO2023197833 A1 WO 2023197833A1 CN 2023082569 W CN2023082569 W CN 2023082569W WO 2023197833 A1 WO2023197833 A1 WO 2023197833A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
base
cutters
cutting device
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/082569
Other languages
English (en)
French (fr)
Inventor
史云茹
文志华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
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.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to KR1020247024728A priority Critical patent/KR102865074B1/ko
Priority to EP23787480.5A priority patent/EP4506094A4/en
Publication of WO2023197833A1 publication Critical patent/WO2023197833A1/zh
Priority to US18/911,266 priority patent/US12304098B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/065—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/02—Shearing machines or shearing devices cutting by blades which move parallel to themselves having both upper and lower moving blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/0006—Means for guiding the cutter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/085—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2685—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member flexible mounting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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

Definitions

  • the present application relates to the technical field of battery manufacturing, specifically, to a cutting device, a cutting method and cutting equipment.
  • Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection.
  • battery technology is an important factor related to their development.
  • This application provides a cutting device, cutting method and cutting equipment, which can reduce the risk of the cutter scratching the material tape and improve the cutting quality of the material tape.
  • the application provides a cutting device, including: a base; a pair of cutters installed on the base; and a driving mechanism for driving the pair of cutters to close with each other along a first direction or Open; the adjustment mechanism is configured to drive at least a portion of the base to elastically deform in the second direction before the driving mechanism drives the pair of cutters to open or during the opening process, so that the pair of cutters can be opened.
  • the cutter creates a gap in the second direction, which is the movement direction of the cutting material and intersects with the first direction.
  • the adjusting mechanism causes the driving base to elastically deform in the second direction before the driving mechanism drives the pair of cutters to open or during the opening process, thereby causing the pair of cutters to move in the second direction.
  • the gap is generated, which reduces the risk of a pair of cutters coming into contact with the tape during the opening process, reduces the probability of a pair of cutters scratching the tape, and improves the cutting quality of the tape.
  • the second direction is perpendicular to the first direction.
  • the second direction is perpendicular to the first direction, and the cutting device has a simple structure and is easy to design and process.
  • the base includes a first base body and a second base body, and at least a part of the first base body can move in the second direction relative to the second base body;
  • a pair of cutters includes a first cutter and a second cutter; the first cutter is arranged on the first base, and the second cutter is arranged on the second base; the adjustment The mechanism is configured to enable at least a portion of the first base body to elastically deform relative to the second base body along the second direction before the driving mechanism drives the pair of cutters to open or during the opening process. and causing the gap to be generated in the second direction between the first cutting knife and the second cutting knife.
  • the first cutting knife is arranged on the first base body to realize the positioning of the first cutting knife
  • the second cutting knife is arranged on the second base body to realize the positioning of the second cutting knife
  • the adjustment mechanism is used to make the third cutting knife
  • At least a part of the base body is elastically deformed in the second direction relative to the second base body, so that a gap is generated between the first cutting blade and the second cutting blade in the second direction.
  • the first base includes a first part and a second part, the first part can elastically deform relative to the second part along the second direction, and the second part is in contact with the second part.
  • the second base body is connected; the first cutting knife is arranged on the first part.
  • the first cutter connected to the first part causes the first cutter and the second cutter to move when the first part elastically deforms.
  • a gap is created in the second direction, making it easy to adjust.
  • At least one gap that is elastically deformable along the second direction is provided between the first part and the second part; the adjustment mechanism is configured to adjust the gap of the gap. Elastic deformation.
  • the setting of the gap can allow the first base body to elastically deform, so as to create a gap between the pair of cutters in the second direction.
  • the slit generally extends along a third direction that is perpendicular to the second direction and the first direction.
  • the gap generally extends along the third direction, so that the first base body can elastically deform in the second direction.
  • the first base includes at least two first parts, the first parts are arranged along a third direction, and the third direction is perpendicular to the second direction and the first direction.
  • the first part is arranged along the third direction, so that the first base body can elastically deform and the pair of cutters can easily create a gap in the second direction.
  • the pair of cutters includes a first cutter and a second cutter, the first cutter is movably connected to the first part along the first direction, and the third cutter The two cutting knives are fixed on the second base body.
  • the first cutting knife can move in the first direction relative to the first part, and the second cutting knife is fixed on the second base body to ensure that the first cutting knife and the second cutting knife cooperate stably.
  • the first part is provided with a guide hole
  • the cutting device further includes: a guide rod extending along the first direction and slidably passing through the guide hole; wherein, the The first cutting knife is fixed on the guide rod.
  • the first cutting knife is connected through a guide rod passing through the guide hole, so that the first cutting knife can It is capable of moving in the first direction relative to the base, so that the first cutting knife and the second cutting knife can be closed or opened with each other to ensure stable movement of the first cutting knife.
  • the gap includes a straight line segment and an arc segment connected to each other, the straight line segment extends along the third direction, and the straight line segment and the arc segment extend along the third direction.
  • the center of the guide hole coincides with the center of the arc segment.
  • the arc segment is used to avoid the guide hole, so that the guide rod and the base are closely matched, and the size of the base in the second direction is reduced.
  • the extension line of the straight segment passes through the center of the guide hole.
  • the extension line of the straight segment passes through the center of the guide hole, so that the cooperation between the guide rod and the base is relatively compact.
  • the first portion is provided with a weakened portion.
  • the provision of the weakened portion can reduce the difficulty of elastic deformation of the base.
  • the weakened portion includes a plurality of through holes, each of the through holes extends along the third direction, and the plurality of through holes are arranged along the second direction.
  • the arrangement of multiple through holes can weaken the base in the second direction, thereby reducing the difficulty of elastic deformation of the base in the second direction.
  • the adjustment mechanism is installed between the first part and the second part.
  • the setting position of the adjusting mechanism is convenient for driving the first part to elastically deform relative to the second part, and the adjustment is simple.
  • the adjustment mechanism includes a piezoelectric ceramic actuator.
  • the piezoelectric ceramic actuator has a compact structure and small volume.
  • the application provides a cutting method, which includes: driving a pair of cutters to close with each other along a first direction to cut the material strip; causing a gap in the pair of cutters in the second direction , the second direction is the movement direction of the cutting material and intersects with the first direction; the pair of cutting knives are driven to open along the first direction.
  • the present application provides a cutting device, which includes: a conveying device for conveying the pole piece; and the cutting device provided in any of the above embodiments for cutting the pole piece.
  • Figure 1 is an isometric view of a cutting device provided by some embodiments of the present application.
  • Figure 2 is a schematic structural diagram of a cutting device provided by some embodiments of the present application.
  • Figure 3 is a schematic structural diagram of the gap of the base provided by some embodiments of the present application.
  • Figure 4 is a cross-sectional view along the A-A direction of Figure 3;
  • Figure 5 is a cross-sectional view along the B-B direction of Figure 3;
  • Figure 6 is a schematic flow chart of a cutting method provided by some embodiments of the present application.
  • Figure 7 is a schematic block diagram of a cutting device provided by some embodiments of the present application.
  • Marking description 100-cutting device; 10-base; 11-gap; 111-straight line segment; 112-arc segment; 12-guide hole; 13-weakened portion; 131-through hole; 14-first base body ; 141-first part; 142-second part; 15-second seat; 16-accommodating cavity; 17-hollow portion; 20-a pair of cutters; 21-first cutter; 22-second cutter; 30-Driving mechanism; 31-Driving connection piece; 40-Adjusting mechanism; 50-Guide rod; 60-Connecting plate; 71-First stopper; 72-Second stopper; 900-Conveying device; 1000-Cutting cut equipment.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to means two or more pieces (including two pieces), unless otherwise clearly and specifically limited.
  • the battery mentioned refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack.
  • the battery mentioned refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode plate, a negative electrode plate and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector that is not coated with the positive electrode active material layer protrudes from the current collector that is coated with the positive electrode active material layer.
  • the current collector that is not coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector that is not coated with the negative electrode active material layer protrudes from the current collector that is coated with the negative electrode active material layer.
  • the current collector that is not coated with the negative electrode active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon.
  • the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the isolation film can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.
  • pole pieces are usually rolled into rolls for movement between processes. Due to the long length of the pole piece strip, the pole piece strip needs to be cut during the battery manufacturing process to obtain pole pieces of the required length.
  • a cutting device is usually used to cut the material tape.
  • the cutting device includes a pair of cutters, and the pair of cutters are closed with each other to cut the material tape.
  • the inventor found that after the cutting is completed, a pair of cutters are opened.
  • the material belt will move with the cutters, causing the cutter to easily scratch the material belt, thereby damaging the material belt and causing the cutting of the material belt to be difficult. Poor quality.
  • the cutter scratches the pole piece, which can easily cause the active material layer of the pole piece to be scraped off, thereby reducing the active material capacity of the pole piece, and in severe cases, the pole piece can be damaged. Deep scratches occur on the surface of the pole piece, which affects the strength of the pole piece, causing the pole piece to break during subsequent processing and affecting the performance of the pole piece.
  • the cutting device includes a base, a pair of cutters, a driving mechanism and an adjusting mechanism; the driving mechanism The mechanism is used to drive a pair of cutters to close or open each other along the first direction; the adjustment mechanism is configured to drive a pair of cutters when the driving mechanism Before the cutter is opened or during the opening process, the driving base is elastically deformed in a second direction to increase the movement gap of the pair of cutters, and the second direction intersects the first direction.
  • the adjustment mechanism drives the base to elastically deform in the second direction, increasing the movement gap between the pair of cutters, reducing the risk of the cutters coming into contact with the material strip during opening, thereby improving the cutting quality of the material strip.
  • the driving base elastically deforms in the second direction before the driving mechanism drives the pair of cutters to open or during the opening process, thereby increasing the movement gap of the pair of cutters and reducing the The risk of a pair of cutters coming into contact with the tape during the opening process reduces the probability of a pair of cutters scratching the tape and improves the cutting quality of the tape.
  • Figure 1 is an isometric view of a cutting device provided by some embodiments of the present application.
  • Figure 2 is a schematic structural diagram of a cutting device provided by some embodiments of the present application.
  • Figure 3 is a schematic diagram of some implementations of the present application. The example provides a structural schematic diagram of the gap of the base.
  • Figure 4 is a cross-sectional view along the A-A direction of Figure 3
  • Figure 5 is a cross-sectional view along the B-B direction of Figure 3.
  • the present application provides a cutting device 100.
  • the cutting device 100 includes a base 10 , a pair of cutters 20 , a driving mechanism 30 and an adjusting mechanism 40 .
  • the driving mechanism 30 is used to drive a pair of cutters 20 to close or open each other along the first direction Z;
  • the adjustment mechanism 40 is configured to drive at least one part of the base 10 before the driving mechanism 30 drives the pair of cutters 20 to open or during the opening process.
  • a part is elastically deformed in the second direction X, so that a pair of cutters 20 creates a gap in the second direction X; the second direction X is the movement direction of the cutting material and intersects with the first direction Z.
  • the direction indicated by the letter Z is the first direction
  • the direction indicated by the letter X is the second direction
  • the second direction X is the movement direction of the cutting material, which means that the cutting material moves along the second direction X.
  • the pair of cutters 20 closing with each other along the first direction Z means that the pair of cutters 20 are close to each other in the first direction Z, thereby cutting the material between the pair of cutters 20;
  • the pair of cutters 20 Opening along the first direction Z means that the blades of the pair of cutting knives 20 move away from each other in the first direction Z to reset, waiting for the next cutting of the material strip.
  • the pair of cutters 20 closing or opening each other along the first direction Z.
  • one of the pair of cutters 20 is close to or away from the other along the first direction Z, or a pair of cutters 20 can be closed or opened with each other along the first direction Z. 20 simultaneously move in opposite directions.
  • the adjustment mechanism 40 drives the base 10 to elastically deform, so that a gap is generated between the pair of cutters 20 in the second direction.
  • the gap between the pair of cutters 20 in the second direction refers to the distance in the second direction X between the surfaces of the pair of cutters 20 that are close to each other.
  • the thickness direction of the pair of cutters 20 may be arranged parallel to the second direction X, or may be arranged obliquely to the second direction X.
  • the conveying direction of the material belt can be set parallel to the second direction Cut the tape at an angle to the width of the tape.
  • the second direction X intersects the first direction Z, and the second direction X may be perpendicular to the first direction Z, or the second direction X may be arranged obliquely to the first direction Z.
  • the pair of cutters 20 can be ordinary cutters or ultrasonic cutters.
  • the driving mechanism 30 and the adjusting mechanism 40 can be electrically controlled mechanisms to realize automated cutting operations.
  • the material strip may be a pole piece, and the pole piece is a component used to form the electrode assembly of the battery cell.
  • the material belt may also be a composite material belt formed by combining the pole piece and the isolation film, or may be other forms of composite material belts that require higher surface quality.
  • Elastic deformation is a phenomenon in which a material deforms under the action of an external force, and the deformation completely disappears when the external force is removed.
  • the elastic deformation of the base 10 in the second direction X means that under the action of the adjustment mechanism 40 , at least a local area of the base 10 elastically deforms in the second direction Small changes.
  • the elastic deformation of the base 10 is a recoverable deformation.
  • the base 10 returns to its original shape. It should be noted that when the adjustment mechanism 40 drives the base 10 to elastically deform in the second direction A gap is created for the cutter 20 in the second direction.
  • the gap between the pair of cutters 20 in the second direction may be caused by both the pair of cutters 20 changing their positions under the elastic deformation of the base 10 , or it may be caused by one of the pair of cutters 20 being moved between the base 10 and the base 10 .
  • the position of one changes due to elastic deformation, while the other does not move.
  • the adjusting mechanism 40 drives the base 10 to elastically deform in the second direction
  • the knife 20 creates a gap in the second direction, which reduces the risk of the pair of cutters 20 coming into contact with the material tape during the opening process, reduces the probability of the pair of cutters 20 scratching the material tape, and improves the cutting of the material tape. quality.
  • the second direction X is perpendicular to the first direction Z.
  • the first direction Z may be a vertical direction, a horizontal direction or other directions.
  • the first direction Z is the vertical direction
  • the direction X is the vertical direction
  • the material belt is transported in the vertical direction
  • the thickness direction of the material belt extends in the horizontal direction.
  • the second direction X is perpendicular to the first direction Z.
  • the mutual closing or opening direction of the pair of cutters 20 is perpendicular to the movement gap adjustment direction of the pair of cutters 20 .
  • the second direction X and the first direction Z are arranged obliquely relative to the second direction X and the first direction Z, so that the cutting device 100 has a simpler structure and is easier to design and process.
  • the base 10 includes a first base 14 and a second base 15. At least a part of the first base 14 can move in the second direction X relative to the second base 15; a pair of cutters 20 includes a first cutting knife 21 and a second cutting knife 22; the first cutting knife 21 is arranged on the first base 14, and the second cutting knife 22 is arranged on the second base 15; the adjustment mechanism 40 is configured to drive The mechanism 30 drives the pair of cutters 20 before opening or during the opening process, so that at least a part of the first base 14 can elastically deform relative to the second base 15 along the second direction X, and the first cutter 21 and the second A gap is generated between the cutters 22 in the second direction X.
  • the first base body 14 and the second base body 15 can be connected into one body, or the first base body 14 and the second base body 15 can be integrally formed.
  • first base 14 can move in the second direction relative to the second base 15, so that at least a part of the first base 14 can move in the second direction X relative to the second base 15. Elastic deformation occurs; the part of the first base body 14 can elastically deform along the second direction X relative to the second base body 15, or, The entire first base body 14 is elastically deformed along the second direction X relative to the second base body 15 .
  • the first cutting knife 21 is arranged on the first base 14 to realize the positioning of the first cutting knife 21, and the second cutting knife 22 is arranged on the second base 15 to realize the positioning of the second cutting knife 22; through the adjustment mechanism 40 At least a part of the first base body 14 is elastically deformed along the second direction X relative to the second base body 15, so that a gap is generated between the first cutting blade 21 and the second cutting blade 22 in the second direction X.
  • the first base 14 includes a first part 141 and a second part 142.
  • the first part 141 can elastically deform relative to the second part 142 along the second direction 15 connection; the first cutting knife 21 is arranged on the first part 141.
  • the first part 141 can elastically deform relative to the second part 142 along the second direction
  • the deformed part that is, the first part 141 is easily elastically deformed relative to the second part 142 .
  • the cutter 22 creates a gap in the second direction X, which is easy to adjust.
  • At least one gap 11 elastically deformable in the second direction is provided between the first part 141 and the second part 142; the adjustment mechanism 40 is configured to adjust the elastic deformation of the gap 11.
  • the gap 11 is a gap opened on the first base 14.
  • the gap 11 becomes larger, so that the first cutting knife 21 and the second cutting knife 21 are enlarged.
  • the knife 22 creates a gap in the second direction X.
  • the gap 11 runs through the first base 14 along the first direction Z, so that the first base 14 is easily elastically deformed.
  • the arrangement of the gap 11 can allow the first base 14 to elastically deform, so as to create a gap in the second direction X between the pair of cutters 20 .
  • the slit 11 generally extends along a third direction Y, and the third direction Y is perpendicular to the second direction X and the first direction Z.
  • the direction indicated by the letter Y is the third direction
  • the third direction Y is perpendicular to the second direction X and perpendicular to the first direction Z.
  • the length direction of the pair of cutters 20 may extend along the third direction Y.
  • the gap 11 generally extends along the third direction Y, which means that the gap 11 basically extends along the third direction Y.
  • the length direction of the gap 11 is the third direction Y; optionally, the line connecting the two endpoints of the gap 11 Can be parallel to the third direction Y.
  • the slit 11 when the slit 11 has a linear structure, the slit 11 extends along the third direction Y; for another example, most areas of the slit 11 extend along the third direction Y, and some areas extend along the direction intersecting the third direction Y.
  • the slit 11 generally extends along the third direction Y, which is perpendicular to the second direction X, the width direction of the slit 11 is the second direction X, so that the base 10 can elastically deform in the second direction X.
  • the first base 14 includes at least two first parts 141 , the first parts 141 are arranged along a third direction Y, and the third direction Y is perpendicular to the second direction X and the first direction Z.
  • the arrangement of the first parts 141 along the third direction Y means that the plurality of first parts 141 are arranged at intervals along the third direction Y. In the third direction Y, the plurality of first parts 141 are arranged in sequence.
  • the first part 141 is arranged along the third direction Y, so that the first base 14 can elastically deform so that A gap is easily generated in the second direction X between the pair of cutters 20 .
  • a pair of cutters 20 includes a first cutter 21 and a second cutter 22, and the first cutter 21 is movable along the first direction Z.
  • the ground is connected to the first part 141, and the second cutter 22 is fixed to the second base 15.
  • the first cutting knife 21 is movably connected to the first part 141 along the first direction Z, so that the first cutting knife 21 can move along the first direction Z relative to the first part 141 .
  • the first cutting knife 21 and the second cutting knife 22 can be closed or opened with each other.
  • the first cutting knife 21 can move along the first direction Z relative to the first part 141, and the second cutting knife 22 is fixed to the second base body 15 to ensure that the first cutting knife 21 and the second cutting knife 22 cooperate stably.
  • the first part 141 is provided with a guide hole 12
  • the cutting device 100 further includes a guide rod 50 extending along the first direction Z and slidably passing through it. It is provided in the guide hole 12; among them, the first cutting knife 21 is fixed on the guide rod 50.
  • the guide hole 12 is a hole opened in the first part 141 and extending along the first direction Z.
  • the guide hole 12 may be a through hole, or the guide hole 12 may be a blind hole.
  • the guide hole 12 may be a through hole, and the two ends of the guide rod 50 are respectively exposed at the two ends of the guide hole 12 .
  • the guide rod 50 is a rod-shaped structure and is used to cooperate with the guide hole 12 to guide the movement of the first cutting knife 21 relative to the base 10 to ensure that the first cutting knife 21 moves along the first direction Z.
  • the first cutting knife 21 is connected through the guide rod 50 passing through the guide hole 12 to ensure that the first cutting knife 21 can move in the first direction Z relative to the base 10 to facilitate the first cutting knife 21 and the second cutting knife 22 mutually close or open to ensure the stable movement of the first cutting knife 21.
  • the guide hole 12 is located on one side of the slit 11 .
  • the guide hole 12 is located on one side of the slit 11 , which means that the guide hole 12 is located on one side of the slit 11 along the second direction X.
  • the guide hole 12 is the matching position between the guide rod 50 and the first part 141, that is, the matching position between the first cutting knife 21 and the first part 141.
  • the guide hole 12 is located on one side of the gap 11 so that the position of the guide rod 50 changes when the size of the gap 11 changes, thereby causing the first cutting knife 21 and the second cutting knife 22 to move in the second direction X. gap.
  • the gap 11 includes a straight line segment 111 and an arc segment 112 connected to each other.
  • the straight line segment 111 extends along the third direction Y, and the straight line segment 111 and the arc segment 112 extend along the third direction Y.
  • the third direction Y is arranged alternately, and the center of the guide hole 12 coincides with the center of the arc segment 112 .
  • Straight line segments 111 and arc segments 112 are alternately arranged along the third direction Y, which means that there are multiple straight line segments 111 and arc segments 112. Two adjacent straight segments 111 are connected by arc segments 112, and two adjacent straight segments 111 are connected by arc segments 112. The arc segments 112 are connected by straight segments 111 .
  • the first base 14 is provided with a plurality of guide holes 12.
  • the plurality of guide holes 12 are spaced apart along the third direction Y.
  • the guide rods 50 are provided with a plurality of guide rods. 50 corresponds to a plurality of guide holes 12 one-to-one, and each guide rod 50 is inserted into the corresponding guide hole 12; each guide hole 12 corresponds to an arc.
  • Section 112 in this embodiment, the first cutting knife 21 and the first base 14 have multiple connection positions in the third direction Y. Since the length direction of the first cutting knife 21 is the third direction Y, the first cutting knife 21 and the base 10 have multiple connection positions in the third direction Y, ensuring that the first cutting knife 21 moves smoothly relative to the base 10 .
  • the center of the arc segment 112 coincides with the center of the guide hole 12, and the arc segment 112 arches toward the side of the gap 11 away from the guide hole 12; the arc segment 112 is used to avoid the guide hole 12, so that the guide rod 50 is in contact with the base.
  • the fit of the base 10 is compact, reducing the size of the base 10 in the second direction X.
  • the extension line of the straight segment 111 passes through the center of the guide hole 12 .
  • the extension line of the straight segment 111 passes through the center of the guide hole 12.
  • the arc segment 112 has a semicircular structure.
  • the extension line of the straight segment 111 passes through the center of the guide hole 12, so that the cooperation between the guide rod 50 and the base 10 is relatively compact.
  • the first portion 141 is provided with a weakened portion 13 . As shown in FIGS. 1 and 3 , the weakened portion 13 and the guide hole 12 are located on the same side of the gap 11 .
  • the weakened portion 13 is an area on the first portion 141 used to reduce elastic deformation of the base 10 .
  • the weakened portion 13 can be a through hole, a gap, or other structures on the base 10 .
  • the difficulty of elastic deformation of the base 10 is reduced, and elastic deformation is facilitated in local areas of the base 10.
  • the first part 141 is provided with a plurality of weakened portions 13 , and the plurality of weakened portions 13 are spaced apart along the third direction Y.
  • the arrangement of multiple weakened portions 13 can weaken the base 10 at multiple positions in the third direction Y, thereby reducing the difficulty of elastic deformation of the base 10 .
  • the weakened portion 13 includes a plurality of through holes 131 , each through hole 131 extends along the third direction Y, and the plurality of through holes 131 are arranged along the second direction X. .
  • Each through hole 131 extends along the third direction Y, so that the extending direction of the through hole 131 is parallel to the extending direction of the slit 11 so that the base 10 can easily deform elastically.
  • the provision of multiple through holes 131 can weaken the base 10 in the second direction X, thereby reducing the difficulty of elastic deformation of the base 10 in the second direction X.
  • the second cutter 22 is fixed to both ends of the base 10 along the third direction Y.
  • the second cutter 22 is fixed to both ends of the base 10 along the third direction Y, so as to facilitate the installation of other components in the area between the two ends of the base 10 and rationally utilize the installation space.
  • the base 10 includes a first base 14 and two second bases 15.
  • the two second bases 15 are connected to both ends of the first base 14 along the third direction Y.
  • the second cutter 22 is fixed to the two second bases 15, the first cutter 21 is connected to the first base 14, and the gap 11 penetrates the first base 14 along the first direction Z.
  • the first base body 14, the two second base bodies 15 and the second cutter 22 form a receiving space.
  • the cutting device 100 also includes a connecting plate 60.
  • the connecting plate 60 is disposed in the receiving space, and the guide rod 50 is inserted into the first base body 14.
  • One end of the base body 14 and the guide rod 50 is connected to the connecting plate 60, and the first cutter 21 is connected to the connecting plate 60, so that the cutting device 100 has a compact structure and facilitates the assembly of the first cutter 21 and the base 10.
  • the adjustment mechanism 40 is installed between the first part 141 and the second part 142.
  • the adjustment mechanism 40 is installed between the first part 141 and the second part 142 to facilitate positioning and support of the adjustment mechanism 40 .
  • the adjustment mechanism 40 is configured to adjust the size of the gap 11.
  • the adjustment mechanism 40 adjusts the size of the gap 11 to facilitate driving the first part 141 to elastically deform in the second direction X relative to the second part 142, so that the pair of cutters 20 can be A gap is generated in the second direction X, and the adjustment is simple.
  • the base 10 has an accommodation cavity 16 connected with the gap 11 , and the adjustment mechanism 40 is disposed in the accommodation cavity 16 .
  • the adjustment mechanism 40 is disposed in the accommodation cavity 16 to facilitate the protection of the adjustment mechanism 40.
  • the cutting device 100 has a compact structure and reduces space occupation.
  • the accommodation cavity 16 extends along the second direction X. Both ends of the accommodation cavity 16 are located on both sides of the gap 11 .
  • the two ends of the adjustment mechanism 40 along the second direction Adjust the size of gap 11.
  • the accommodation cavity 16 is a structure with openings at both ends, so that the adjustment mechanism 40 can be placed in the accommodation cavity 16; a first stopper 71 is provided at one end opening of the accommodation cavity 16, and the first stopper 71 is located at the adjustment position.
  • a second stopper 72 is provided at the other end opening of the accommodation cavity 16, and the second stopper 72 is detachably connected to the base 10.
  • the second stopper 72 can It is threadedly connected with the base 10 , or the second stopper 72 can be snap-fitted with the base 10 to prevent the adjustment mechanism 40 from being separated from the accommodation cavity 16 .
  • the adjustment mechanism 40 includes a piezoelectric ceramic actuator.
  • Piezoelectric ceramic actuators have the advantages of high precision, short response time, compact structure and small size.
  • Piezoelectric ceramics use their material characteristics to undergo mechanical deformation under the action of voltage, and under the action of mechanical stress, the relative displacement of the internal positive and negative charge centers causes polarization, which is a piezoelectric effect.
  • the piezoelectric ceramic In the energized state, the piezoelectric ceramic can become longer in the distribution direction of the two electrodes (ie, the second direction X), and can be shortened to the original size in the de-energized state.
  • the piezoelectric ceramic actuator When the piezoelectric ceramic actuator is energized, the piezoelectric ceramic deforms and extends along the second direction X, causing the driving base 10 to elastically deform, so that the width of the gap 11 becomes larger.
  • the piezoelectric ceramic actuator When the piezoelectric ceramic actuator is powered off, the piezoelectric ceramic deforms and retracts along the second direction X, and the base 10 returns to the initial state under the action of its own material properties.
  • the piezoelectric ceramic actuator is in the form of a cylinder.
  • the adjustment mechanism 40 may also be an electric push rod, an electrode screw nut mechanism, etc.
  • the driving mechanism 30 includes a driving connection member 31 that is movably disposed on the base 10 along the first direction Z.
  • One end of the driving connection member 31 The power source is connected, and the driving connection member 31 moves along the first direction Z under the action of the power source, thereby driving the pair of cutters 20 to close or open each other along the first direction Z.
  • the cutting device 100 includes a connecting plate 60
  • one end of the driving connector 31 is connected to the connecting plate 60, and the other end is connected to the power source.
  • the driving connecting piece 31 drives the connecting plate 60 to move along the first direction Z
  • the connecting plate 60 drives the first cutting knife 21 to move along the first direction Z, so that the first cutting knife 21 approaches Or stay away from the second cutter 22.
  • the power source may be a combination of a motor and a cam, or the power source may be an electric push rod, or the power source may be other linear drive mechanisms 30 .
  • the base 10 is also provided with a hollow portion 17 for reducing the weight of the base 10 .
  • the blade of the first cutting knife 21 and the blade of the second cutting knife 22 are arranged at an angle, so as to achieve a better cutting effect on the material strip.
  • the application provides a cutting device 100 .
  • the cutting device 100 includes a base 10 , a pair of cutters 20 , a driving mechanism 30 and an adjusting mechanism 40 .
  • the pair of cutters 20 includes a first cutter 21 and a second cutter 22.
  • the first cutter 21 is movably connected to the base 10 along the first direction Z
  • the second cutter 22 is fixed to the base 10 along the first direction Z. Both ends of Y in three directions.
  • the driving mechanism 30 is used to drive the first cutting knife 21 to move along the first direction Z, so that the first cutting knife 21 approaches or moves away from the second cutting knife 22 .
  • the base 10 is provided with a slit 11 and a guide hole 12.
  • the slit 11 generally extends along the third direction Y.
  • the slit 11 is used to allow the base 10 to deform.
  • the guide hole 12 extends along the first direction Z, and the guide hole 12 is located at the width of the slit 11. direction side.
  • the first cutting knife 21 is connected to the guide rod 50 .
  • the guide rod 50 is inserted into the guide hole 12 .
  • the guide rod 50 can move along the first direction Z relative to the base 10 to drive the first cutting knife 21 along the first direction Z. move.
  • the adjustment mechanism 40 is a piezoelectric ceramic actuator and is used to adjust the size of the gap 11 .
  • the piezoelectric ceramic actuator is energized, and the piezoelectric ceramic actuator increases the width of the gap 11, thereby increasing the width of the first cutter 21 and the second cutter 22.
  • the movement gap of the second cutter 22 in the second direction The cutting quality of the tape.
  • FIG. 6 shows a schematic flow chart of a cutting method 800 provided by some embodiments of the present application. According to some embodiments of the present application, as shown in Figure 6, the present application also provides a cutting method 800.
  • the cutting method 800 includes:
  • the second direction X is the movement direction of the cutting material strip and intersects with the first direction Z;
  • driving the pair of cutters 20 to close with each other along the first direction Z means driving the first cutter 21 and the second cutter 22 to approach each other in the first direction Z; driving the pair of cutters 20 to close with each other along the first direction Z; Opening in one direction Z means driving the first cutting knife 21 and the second cutting knife 22 to move away from each other in the first direction Z.
  • cutting method 800 of some embodiments of the present application can be, but is not limited to, implemented using the cutting device 100 of any of the above embodiments.
  • FIG. 7 shows a schematic block diagram of a cutting device 1000 provided by some embodiments of the present application.
  • the present application also provides a cutting device 1000.
  • the cutting device 1000 includes a conveying device 900 and a cutting device 100.
  • the conveying device 900 is used to convey the pole pieces, and the cutting device 100 is used to cut the pole pieces.
  • the cutting device 100 is provided with an adjustment mechanism 40, which can After lowering a pair of cutters 20 to cut the material tape, the material tape is scratched during the opening process.
  • the cutting quality of the material tape is high and meets the process requirements.

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Abstract

一种裁切装置、裁切方法及裁切设备，属于电池制造技术领域。该裁切装置（100）包括：基座（10）；一对切刀（20），安装于基座（10）；驱动机构（30），用于驱动一对切刀（20）沿第一方向相互闭合或打开；调节机构（40），被配置为在驱动机构（30）驱动一对切刀（20）打开之前或打开过程中，驱动基座的至少一部分在第二方向上产生弹性变形，以使一对切刀（20）在第二方向上产生间隙，第二方向为裁切物料的运动方向，并与第一方向相交。该裁切装置（100），能够降低切刀剐蹭料带的风险，提高料带的裁切质量。

Description

裁切装置、裁切方法及裁切设备
相关申请的交叉引用
本申请要求享有于2022年04月12日提交的名称为“裁切装置、裁切方法及裁切设备”的中国专利申请CN202210380774.6的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池制造技术领域，具体而言，涉及一种裁切装置、裁切方法及裁切设备。
背景技术
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池的制造过程中，需要使用裁切装置对极片进行裁切，但是裁切过程中切刀会有刮蹭料带的风险，导致裁切后的极片的质量较差。
发明内容
本申请提供一种裁切装置、裁切方法及裁切设备，能够降低切刀剐蹭料带的风险，提高料带的裁切质量。
本申请是通过下述技术方案实现的：
第一方面，本申请提供了一种裁切装置，包括：基座；一对切刀，安装于所述基座；驱动机构，用于驱动所述一对切刀沿第一方向相互闭合或打开；调节机构，被配置为在所述驱动机构驱动所述一对切刀打开之前或打开过程中，驱动所述基座的至少一部分在第二方向上产生弹性变形，以使所述一对切刀在所述第二方向上产生间隙，所述第二方向为裁切物料的运动方向，并与所述第一方向相交。
根据本申请实施例的裁切装置，通过调节机构在驱动机构驱动一对切刀打开之前或打开过程中驱动基座在第二方向上产生弹性变形，从而使一对切刀在第二方向上产生间隙，降低一对切刀在打开的过程中与料带接触的风险，降低了一对切刀对料带刮蹭的概率，提高了料带的裁切质量。
根据本申请的一些实施例，所述第二方向与所述第一方向垂直。
在上述方案中，第二方向与第一方向垂直，裁切装置构造简单，便于设计及加工成型。
根据本申请的一些实施例，所述基座包括第一座体和第二座体，所述第一座体的至少一部分能够相对所述第二座体沿所述第二方向运动；所述一对切刀包括第一切刀和第二切刀；所述第一切刀设置于所述第一座体上，所述第二切刀设置于所述第二座体上；所述调节机构被配置为在所述驱动机构驱动所述一对切刀打开之前或打开过程中，使所述第一座体的至少一部分能够相对所述第二座体沿所述第二方向产生弹性变形，并使所述第一切刀与所述第二切刀之间在所述第二方向上产生所述间隙。
在上述方案中，第一切刀设置于第一座体，实现对第一切刀的定位，第二切刀设置于第二座体，实现对第二切刀的定位；通过调节机构使第一座体的至少一部分相对第二座体沿第二方向产生弹性变形，以使第一切刀和第二切刀在第二方向上产生间隙。
根据本申请的一些实施例，所述第一座体包括第一部分和第二部分，所述第一部分可相对所述第二部分沿所述第二方向产生弹性变形，所述第二部分与所述第二座体连接；所述第一切刀设置在所述第一部分上。
在上述方案中，由于第一部分可相对第二部分沿第二方向产生弹性变形，以使得与第一部分连接的第一切刀在第一部分产生弹性变形时，使第一切刀和第二切刀在第二方向上产生间隙，调节方便。
根据本申请的一些实施例，所述第一部分与所述第二部分之间设置有至少一个可沿所述第二方向弹性变形的缝隙；所述调节机构被配置为调节所述缝隙的所述弹性变形。
在上述方案中，缝隙的设置，能够允许第一座体产生弹性变形，以实现一对切刀之间在第二方向上产生间隙。
根据本申请的一些实施例，所述缝隙大体沿第三方向延伸，所述第三方向垂直于所述第二方向和所述第一方向。
在上述方案中，缝隙大体沿第三方向延伸，以便于第一座体能够在第二方向上产生弹性变形。
根据本申请的一些实施例，所述第一座体包括至少两个所述第一部分，所述第一部分沿第三方向排列，所述第三方向垂直于所述第二方向和所述第一方向。
在上述方案中，第一部分沿第三方向排列，以便于第一座体产生弹性变形而使得一对切刀容易在第二方向上产生间隙。
根据本申请的一些实施例，所述一对切刀包括第一切刀和第二切刀，所述第一切刀沿所述第一方向可移动地连接于所述第一部分，所述第二切刀固定于所述第二座体。
在上述方案中，第一切刀能够相对于第一部分沿第一方向移动，第二切刀固定于第二座体，保证第一切刀与第二切刀配合稳定。
根据本申请的一些实施例，所述第一部分设置有导向孔，所述裁切装置还包括：导向杆，沿所述第一方向延伸且可滑动地穿设于所述导向孔；其中，所述第一切刀固定于所述导向杆。
在上述方案中，第一切刀通过穿设于导向孔的导向杆连接，以使得第一切刀能 够相对于基座沿第一方向移动，便于第一切刀与第二切刀相互闭合或打开，保证第一切刀移动稳定。
根据本申请的一些实施例，所述缝隙包括相互连接的直线段和弧线段，所述直线段沿所述第三方向延伸，所述直线段和所述弧线段沿所述第三方向交替设置，所述导向孔的中心与所述弧线段的圆心重合。
在上述方案中，弧线段用于避让导向孔，以使得导向杆与基座的配合紧凑，减小基座在第二方向的尺寸。
根据本申请的一些实施例，所述直线段的延长线经过所述导向孔的中心。
在上述方案中，直线段的延长线经过导向孔的中心，使得导向杆与基座的配合较为紧凑。
根据本申请的一些实施例，所述第一部分设置有弱化部。
在上述方案中，弱化部的设置，能够降低基座产生弹性变形的难度。
根据本申请的一些实施例，所述弱化部包括多个通孔，每个所述通孔沿所述第三方向延伸，所述多个通孔沿所述第二方向排列。
在上述方案中，多个通孔的设置，能够在第二方向上弱化基座，以降低基座沿第二方向产生弹性变形的难度。
根据本申请的一些实施例，所述调节机构安装于所述第一部分和所述第二部分之间。
在上述方案中，调节机构的设置位置，便于驱动第一部分相对第二部分产生弹性变形，调节简单。
根据本申请的一些实施例，所述调节机构包括压电陶瓷促动器。
在上述方案中，压电陶瓷促动器，结构紧凑，体积小。
第二方面，本申请提供了一种裁切方法，包括：驱动一对切刀沿第一方向相互闭合，以对料带进行裁切；使所述一对切刀在第二方向上产生间隙，所述第二方向为裁切物料的运动方向，并与所述第一方向相交；驱动所述一对切刀沿所述第一方向打开。
第三方面，本申请提供了一种裁切设备，其包括：输送装置，用于输送极片；上述任一实施例提供的裁切装置，用于裁切所述极片。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，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，还可以根据这些附图获得其他相关的附图。
图1为本申请一些实施例提供的裁切装置的轴测图；
图2为本申请一些实施例提供的裁切装置的结构示意图；
图3为本申请一些实施例提供的基座的缝隙的结构示意图；
图4为图3的A-A方向的剖视图；
图5为图3的B-B方向的剖视图；
图6为本申请一些实施例提供的裁切方法的示意性流程图；
图7为本申请一些实施例提供的裁切设备的示意性框图；
在附图中，附图并未按照实际的比例绘制。
标记说明：100-裁切装置；10-基座；11-缝隙；111-直线段；112-弧线段；12-导向孔；13-弱化部；131-通孔；14-第一座体；141-第一部分；142-第二部分；15-第二座体；16-容纳腔；17-镂空部；20-一对切刀；21-第一切刀；22-第二切刀；30-驱动机构；31-驱动连接件；40-调节机构；50-导向杆；60-连接板；71-第一止挡件；72-第二止挡件；900-输送装置；1000-裁切设备。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，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、特定顺序或主次关系。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：存在A，同时存在A和B，存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)，除非另有明确具体的限定。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底” “内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“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；也可以是机械连接，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。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实施例中的具体含义。
在本申请中，所提及的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提及的电池可以包括电池模块或电池包等。
在本申请中，所提及的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提及的电池可以包括电池模块或电池包等。
电池单体包括电极组件和电解液，电极组件由正极极片、负极极片和隔离膜组成。电池单体主要依靠金属离子在正极极片和负极极片之间移动来工作。正极极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔离膜的材质可以为PP(polypropylene，聚丙烯)或PE(polyethylene，聚乙烯)等。
在极片的生产过程中，极片通常收卷为卷料的形式进行工序之间的移动。极片料带由于长度较长，在电池制造的过程中需要对极片料带进行裁切，以获得所需长度的极片。
相关技术中，通常采用裁切装置对料带进行裁切，裁切装置包括一对切刀，一对切刀相互闭合将料带切断。发明人发现，当切削完成后，一对切刀打开，在切刀打开的过程中，料带会跟随切刀移动，导致切刀容易刮蹭料带，从而损伤料带，料带的裁切质量较差。例如，以料带为极片为例，当裁切极片时，切刀刮蹭极片，容易导致极片的活性物质层被刮掉，从而降低极片的活性物质容量，严重时使得极片的表面产生较深的刮痕而影响极片的强度，导致极片在后续加工过程中断裂，影响极片的性能。
鉴于此，为了解决料带的裁切质量较差的问题，发明人经过深入研究，设计了一种裁切装置，该裁切装置包括基座、一对切刀、驱动机构及调节机构；驱动机构用于驱动一对切刀沿第一方向相互闭合或打开；调节机构被配置为在驱动机构驱动一对 切刀打开之前或打开过程中，驱动基座在第二方向上产生弹性变形，以增大一对切刀的运动间隙，第二方向与第一方向相交。通过调节机构驱动基座在第二方向上产生弹性变形，增大一对切刀的运动间隙，降低切刀在打开的过程中与料带接触的风险，进而提高料带的裁切质量。
当采用该裁切装置裁切料带时，在驱动机构驱动一对切刀打开之前或打开过程中驱动基座在第二方向上产生弹性变形，从而增大一对切刀的运动间隙，降低一对切刀在打开的过程中与料带接触的风险，降低了一对切刀对料带刮蹭的概率，提高了料带的裁切质量。
请参见图1至图5，图1为本申请一些实施例提供的裁切装置的轴测图，图2为本申请一些实施例提供的裁切装置的结构示意图，图3为本申请一些实施例提供的基座的缝隙的结构示意图，图4为图3的A-A方向的剖视图，图5为图3的B-B方向的剖视图。
根据本申请的一些实施例，如图1至图5，本申请提供了一种裁切装置100。该裁切装置100包括基座10、一对切刀20、驱动机构30及调节机构40。驱动机构30用于驱动一对切刀20沿第一方向Z相互闭合或打开；调节机构40被配置为在驱动机构30驱动一对切刀20打开之前或打开过程中，驱动基座10的至少一部分在第二方向X上产生弹性变形，以使一对切刀20在第二方向X上产生间隙；第二方向X为裁切物料的运动方向，并与第一方向Z相交。
图中，字母Z所指示的方向为第一方向，字母X所指示的方向为第二方向。第二方向X为裁切物料的运动方向是指，裁切物料沿第二方向X移动。
一对切刀20沿第一方向Z相互闭合，是指一对切刀20在第一方向Z上相互靠近，从而对位于一对切刀20之间的物料进行裁切；一对切刀20沿第一方向Z打开，是指一对切刀20的刀刃在第一方向Z上相互远离以复位，以待下一次裁切料带。
一对切刀20沿第一方向Z相互闭合或打开的实施方式有多种，例如，一对切刀20中的一者沿第一方向Z靠近或远离另一者，或者，一对切刀20同时向相反的方向运动。
为了裁切料带，一对切刀20之间在第二方向上没有间隙；调节机构40驱动基座10产生弹性形变，使得一对切刀20在第二方向上产生间隙。
一对切刀20在第二方向上的间隙，是指在第二方向X上，一对切刀20的相互靠近的表面之间的距离。
一对切刀20的厚度方向可以与第二方向X平行设置，也可以与第二方向X倾斜设置。
料带的输送方向可以与第二方向X平行设置，裁切装置100沿料带的宽度方向裁切料带；或者，料带的输送方向可以与第二方向X倾斜设置，裁切装置100沿倾斜于料带的宽度方向裁切料带。
第二方向X与第一方向Z相交，第二方向X可以与第一方向Z垂直，或者，第二方向X可以与第一方向Z倾斜设置。
一对切刀20可以为普通切刀，也可以为超声波切刀。
驱动机构30和调节机构40可以为电气控制的机构，以实现自动化裁切作业。
在本申请的一些实施例中，料带可以为极片，极片为用于成型电池单体的电极组件的部件。在其他实施例中，料带也可以为极片与隔离膜复合后形成的复合料带，也可以为其他形式的对表面质量有要求较高的复合料带。
弹性变形是材料在外力作用下产生变形，当外力去除后变形完全消失的现象。
基座10在第二方向X上产生弹性变形，是指基座10在调节机构40的作用下，至少局部区域在第二方向X上产生弹性变形，导致该局部区域上的部件的位置发生较小的变化。基座10的弹性变形是可恢复的变形，当调节机构40作用于基座10的作用力消失后，基座10恢复原状。需要指出的是，在调节机构40驱动基座10在第二方向X上产生弹性变形时，可以为基座10的部分区域产生弹性变形，也可以为基座10整体产生弹性变形，以使一对切刀20在第二方向上产生间隙。
一对切刀20在第二方向上产生间隙，可以为一对切刀20均在基座10的弹性变形下发生位置改变，或者，可以为一对切刀20中的一者在基座10的弹性变形下发生位置改变，另一者位置不动。
根据本申请实施例的裁切装置100，通过调节机构40在驱动机构30驱动一对切刀20打开之前或打开过程中驱动基座10在第二方向X上产生弹性变形，从而使一对切刀20在第二方向上产生间隙，降低一对切刀20在打开的过程中与料带接触的风险，降低了一对切刀20对料带刮蹭的概率，提高了料带的裁切质量。
根据本申请的一些实施例，第二方向X与第一方向Z垂直。
第一方向Z可以为竖直方向、水平方向或者其他方向。例如，第一方向Z为竖直方向，第二方向X为水平方向，料带沿水平方向输送，料带的厚度方向沿竖直方向延伸；又例如，第一方向Z为水平方向，第二方向X为竖直方向，料带沿竖直方向输送，料带的厚度方向沿水平方向延伸。
第二方向X与第一方向Z垂直，换句话说，一对切刀20的相互闭合或打开方向与一对切刀20的运动间隙调节方向垂直设置。相对于第二方向X与第一方向Z倾斜设置的方式，第二方向X与第一方向Z垂直，使得裁切装置100构造较为简单，便于设计及加工成型。
根据本申请的一些实施例，基座10包括第一座体14和第二座体15，第一座体14的至少一部分能够相对第二座体15沿第二方向X运动；一对切刀20包括第一切刀21和第二切刀22；第一切刀21设置于第一座体14上，第二切刀22设置于第二座体15上；调节机构40被配置为在驱动机构30驱动一对切刀20打开之前或打开过程中，使第一座体14的至少一部分能够相对第二座体15沿第二方向X产生弹性变形，并使第一切刀21与第二切刀22之间在第二方向X上产生间隙。
第一座体14与第二座体15可以连接于一体，或者，第一座体14和第二座体15可以一体成型。
需要指出的是，第一座体14的至少一部分能够相对于第二座体15沿第二方向运动，以使第一座体14的至少一部分能够相对于第二座体15沿第二方向X产生弹性变形；第一座体14的部分能够相对于第二座体15沿第二方向X产生弹性变形，或者， 第一座体14整体相对于第二座体15沿第二方向X产生弹性变形。
第一切刀21设置于第一座体14，实现对第一切刀21的定位，第二切刀22设置于第二座体15，实现对第二切刀22的定位；通过调节机构40使第一座体14的至少一部分相对第二座体15沿第二方向X产生弹性变形，以使第一切刀21和第二切刀22在第二方向X上产生间隙。
根据本申请的一些实施例，第一座体14包括第一部分141和第二部分142，第一部分141可相对第二部分142沿第二方向X产生弹性变形，第二部分142与第二座体15连接；第一切刀21设置在第一部分141上。
第一部分141可相对第二部分142沿第二方向X产生弹性变形，并且第二部分142与第二座体15连接，可以理解为，第一部分141为第一座体14的上的能够产生弹性变形的部分，也即，第一部分141相对于第二部分142容易产生弹性变形。
由于第一部分141可相对第二部分142沿第二方向X产生弹性变形，以使得与第一部分141连接的第一切刀21在第一部分141产生弹性变形时，使第一切刀21和第二切刀22在第二方向X上产生间隙，调节方便。
根据本申请的一些实施例，第一部分141与第二部分142之间设置有至少一个可沿第二方向弹性变形的缝隙11；调节机构40被配置为调节缝隙11的弹性变形。
缝隙11为第一座体14上开设的缝，当第一部分141相对第二部分142产生弹性变形时，可以理解为缝隙11的大小改变，缝隙11变大使得第一切刀21和第二切刀22在第二方向X上产生间隙。可选地，缝隙11沿第一方向Z贯穿第一座体14，以便于第一座体14容易产生弹性变形。
缝隙11的设置，能够允许第一座体14产生弹性变形，以实现一对切刀20之间在第二方向X上产生间隙。
根据本申请的一些实施例，如图1和图3所示，缝隙11大体沿第三方向Y延伸，第三方向Y垂直于第二方向X和第一方向Z。
图中，字母Y所指示的方向为第三方向，第三方向Y垂直于第二方向X，并且垂直于第一方向Z。
一对切刀20的长度方向可以沿第三方向Y延伸。
缝隙11大体沿第三方向Y延伸，是指缝隙11基本沿第三方向Y延伸，换句话说，缝隙11的长度方向为第三方向Y；可选地，缝隙11的两个端点的连线可以与第三方向Y平行。例如，缝隙11呈直线结构时，缝隙11沿第三方向Y延伸；又例如，缝隙11的大部分区域沿第三方向Y延伸，个别区域沿与第三方向Y相交的方向延伸。
由于缝隙11大体沿第三方向Y延伸，第三方向Y与第二方向X垂直，缝隙11的宽度方向为第二方向X，以便于基座10能够在第二方向X上产生弹性变形。
根据本申请的一些实施例，第一座体14包括至少两个第一部分141，第一部分141沿第三方向Y排列，第三方向Y垂直于第二方向X和第一方向Z。
第一部分141沿第三方向Y排列，是指多个第一部分141沿第三方向Y间隔设置，在第三方向Y上，多个第一部分141依次排布。
第一部分141沿第三方向Y排列，以便于第一座体14产生弹性变形而使得 一对切刀20容易在第二方向X上产生间隙。
根据本申请的一些实施例，如图1、图2和图4所示，一对切刀20包括第一切刀21和第二切刀22，第一切刀21沿第一方向Z可移动地连接于第一部分141，第二切刀22固定于第二座体15。
第一切刀21沿第一方向Z可移动地连接于第一部分141，使得第一切刀21能够相对于第一部分141沿第一方向Z移动。当第一切刀21沿第一方向Z移动时，能够实现第一切刀21与第二切刀22的相互闭合或打开。
第一切刀21能够相对于第一部分141沿第一方向Z移动，第二切刀22固定于第二座体15，保证第一切刀21与第二切刀22配合稳定。
根据本申请的一些实施例，如图2和图5所示，第一部分141设置有导向孔12，裁切装置100还包括导向杆50，导向杆50沿第一方向Z延伸且可滑动地穿设于导向孔12；其中，第一切刀21固定于导向杆50。
导向孔12为第一部分141上开设的、沿第一方向Z延伸的孔。可选地，导向孔12可以为通孔，或者，导向孔12也可以为盲孔。为了保证导向杆50与导向孔12的配合稳定，导向孔12可以为通孔，导向杆50的两端分别在导向孔12的两端露出。
导向杆50为杆状结构，用于与导向孔12配合来实现第一切刀21相对于基座10的移动导向，以保证第一切刀21沿第一方向Z移动。
第一切刀21通过穿设于导向孔12的导向杆50连接，以保证第一切刀21能够相对于基座10沿第一方向Z移动，便于第一切刀21与第二切刀22相互闭合或打开，保证第一切刀21移动稳定。
根据本申请的一些实施例，如图1和图3所示，导向孔12位于缝隙11的一侧。
导向孔12位于缝隙11的一侧，是指导向孔12位于缝隙11的沿第二方向X的一侧。导向孔12为导向杆50与第一部分141的配合位置，也即第一切刀21与第一部分141的配合位置，当基座10产生弹性变形、缝隙11的大小改变时，导向孔12的位置发生改变，使得第一切刀21的位置发生改变，从而使第一切刀21与第二切刀22在第二方向X上产生间隙。
导向孔12位于缝隙11的一侧，以便于导向杆50在缝隙11的大小改变时导向杆50的位置发生改变，进而使第一切刀21和第二切刀22在第二方向X上产生间隙。
根据本申请的一些实施例，如图1和图3示，缝隙11包括相互连接的直线段111和弧线段112，直线段111沿第三方向Y延伸，直线段111和弧线段112沿第三方向Y交替设置，导向孔12的中心与弧线段112的圆心重合。
直线段111和弧线段112沿第三方向Y交替设置，是指直线段111和弧线段112均设置有多个，相邻两个直线段111通过弧线段112连接，相邻两个弧线段112通过直线段111连接。
如图1和图3所示，第一座体14设置有多个导向孔12，多个导向孔12沿第三方向Y间隔设置，对应地，导向杆50设置有多个，多个导向杆50与多个导向孔12一一对应，每个导向杆50插设于对应的导向孔12内；每个导向孔12对应一个弧线 段112，此种实施例中，第一切刀21与第一座体14在第三方向Y上具有多个连接位置。由于第一切刀21的长度方向为第三方向Y，第一切刀21与基座10在第三方向Y上具有多个连接位置，保证第一切刀21相对于基座10移动平稳。
弧线段112的圆心与导向孔12的中心重合，弧线段112朝向缝隙11的背离导向孔12的一侧拱起；弧线段112用于避让导向孔12，以使得导向杆50与基座10的配合紧凑，减小基座10在第二方向X的尺寸。
根据本申请的一些实施例，直线段111的延长线经过导向孔12的中心。
直线段111的延长线经过导向孔12的中心，换句话说，弧线段112呈半圆结构。
在上述方案中，直线段111的延长线经过导向孔12的中心，使得导向杆50与基座10的配合较为紧凑。
根据本申请的一些实施例，第一部分141设置有弱化部13。如图1和图3所示，弱化部13和导向孔12位于缝隙11的同一侧。
弱化部13为第一部分141上的用于降低基座10产生弹性变形的区域，例如，弱化部13可以为基座10上的通孔、缝隙等结构。
通过设置弱化部13，降低基座10产生弹性变形的难度，便于基座10的局部区域产生弹性变形。
根据本申请的一些实施例，如图1和图3所示，第一部分141设置有多个弱化部13，多个弱化部13沿第三方向Y间隔设置。
多个弱化部13的设置，能够在第三方向Y上多个位置弱化基座10，以降低基座10产生弹性变形的难度。
根据本申请的一些实施例，如图1和图2所示，弱化部13包括多个通孔131，每个通孔131沿第三方向Y延伸，多个通孔131沿第二方向X排列。
每个通孔131沿第三方向Y延伸，使得通孔131的延伸方向与缝隙11的延伸方向平行，以便于基座10容易产生弹性变形。
在上述方案中，多个通孔131的设置，能够在第二方向X上弱化基座10，以降低基座10沿第二方向X产生弹性变形的难度。
根据本申请的一些实施例，如图2和图5所示，第二切刀22固定于基座10的沿第三方向Y的两端。
在上述方案中，第二切刀22固定于基座10的沿第三方向Y的两端，以便于在基座10的两端之间的区域设置其他部件，合理利用安装空间。
如图2和图5所示，基座10包括第一座体14和两个第二座体15，两个第二座体15连接于第一座体14的沿第三方向Y的两端，第二切刀22固定于两个第二座体15，第一切刀21连接于第一座体14，缝隙11沿第一方向Z贯穿第一座体14。第一座体14、两个第二座体15及第二切刀22围成容纳空间，裁切装置100还包括连接板60，连接板60设置于容纳空间内，导向杆50插设于第一座体14，导向杆50的一端连接于连接板60，第一切刀21连接于连接板60，使得裁切装置100结构紧凑，便于实现第一切刀21和基座10的装配。
根据本申请的一些实施例，调节机构40安装于第一部分141和第二部分142之间。
调节机构40安装于第一部分141和第二部分142之间，以便于实现对调节机构40的定位支撑。
调节机构40被配置为调节缝隙11的大小，通过调节机构40调节缝隙11的大小，便于驱动第一部分141相对第二部分142在第二方向X上产生弹性变形，以使一对切刀20在第二方向X上产生间隙，调节简单。
根据本申请的一些实施例，如图4所示，基座10具有与缝隙11连通的容纳腔16，调节机构40设置于容纳腔16内。
在上述方案中，调节机构40设置于容纳腔16内，便于保护调节机构40，同时，裁切装置100结构紧凑，减少空间占用。
如图4所示，容纳腔16沿第二方向X延伸，容纳腔16的两端位于缝隙11的两侧，调节机构40的沿第二方向X的两端分别连接于基座10，以便于调节缝隙11的大小。可选地，容纳腔16为两端开口的结构，以便于调节机构40放置于容纳腔16内；容纳腔16的一端开口处设置有第一止挡件71，第一止挡件71位于调节机构40与基座10之间；容纳腔16的另一端开口处设置有第二止挡件72，第二止挡件72与基座10可拆卸地连接，例如，第二止挡件72可以与基座10螺纹连接，或者，第二止挡件72可以与基座10卡接，以避免调节机构40脱离容纳腔16。
根据本申请的一些实施例，调节机构40包括压电陶瓷促动器。
压电陶瓷促动器，具有高精度、响应时间短的优点，并且结构紧凑，体积小。
压电陶瓷利用其材料特性在电压作用下能够发生机械形变，以及在机械应力作用下引起内部正负电荷中心相对位移而发生极化，即具备压电效应。在通电状态下，压电陶瓷能够在两个电极的分布方向(即第二方向X)上变长，以及在断电状态下缩短至原有尺寸。
压电陶瓷促动器通电，压电陶瓷变形，沿第二方向X伸长，驱动基座10产生弹性变形，使得缝隙11的宽度变大。当压电陶瓷促动器断电后，压电陶瓷变形，沿第二方向X缩回，基座10在自身材料性能的作用下恢复初始状态。
可选地，压电陶瓷促动器呈圆柱体。
根据本申请的一些实施例，调节机构40还可以为电推杆、电极丝杆螺母机构等。
根据本申请的一些实施例，如图1和图5所示，驱动机构30包括驱动连接件31，驱动连接件31沿第一方向Z可移动地设置于基座10，驱动连接件31的一端连接动力源，驱动连接件31在动力源的作用下沿第一方向Z运动，从而带动一对切刀20沿第一方向Z相互闭合或打开。
可选地，在裁切装置100包括连接板60的实施例中，驱动连接件31的一端连接于连接板60，另一端连接于动力源。驱动连接件31沿第一方向Z带动连接板60移动时，连接板60带动第一切刀21沿第一方向Z移动，从而使得第一切刀21靠近 或远离第二切刀22。动力源可以为电机与凸轮的结合形式，或者，动力源可以为电推杆，又或者，动力源还可以为其他直线驱动机构30。
根据本申请的一些实施例，基座10还设置有镂空部17，用于减轻基座10的重量。
根据本申请的一些实施例，如图2所示，第一切刀21的刀刃与第二切刀22的刀刃呈夹角设置，以便于对料带具有较好的裁切效果。
根据申请的一些实施例，参见图1至图5，本申请提供了一种裁切装置100，裁切装置100包括基座10、一对切刀20、驱动机构30和调节机构40。一对切刀20包括第一切刀21和第二切刀22，第一切刀21沿第一方向Z可移动地连接于基座10，第二切刀22固定于基座10的沿第三方向Y的两端。驱动机构30用于驱动第一切刀21沿第一方向Z移动，以使第一切刀21靠近或远离第二切刀22。基座10设置有缝隙11和导向孔12，缝隙11大体沿第三方向Y延伸，缝隙11用于允许基座10变形；导向孔12沿第一方向Z延伸，导向孔12位于缝隙11的宽度方向的一侧。第一切刀21连接于导向杆50，导向杆50插设于导向孔12内，导向杆50能够沿第一方向Z相对于基座10移动，以带动第一切刀21沿第一方向Z移动。调节机构40为压电陶瓷促动器，用于调节缝隙11的大小。
在第一切刀21与第二切刀22闭合裁切料带后，压电陶瓷促动器通电，压电陶瓷促动器使得缝隙11的宽度变大，从而增大第一切刀21和第二切刀22在第二方向X上的运动间隙，降低一对切刀20在打开的过程中与料带接触的风险，降低了一对切刀20对料带刮蹭的概率，提高了料带的裁切质量。当一对切刀20打开后，压电陶瓷促动器断电，基座10在自身材料特性的作用下恢复初始状态，以待下一次裁切。
图6示出了本申请一些实施例提供的裁切方法800的示意性流程图。根据本申请的一些实施例，如图6所示，本申请还提供了一种裁切方法800，该裁切方法800包括：
S801，驱动一对切刀20沿第一方向Z相互闭合，以对料带进行裁切；
S802，使一对切刀20在第二方向X上产生间隙，第二方向X为裁切料带的运动方向，并与第一方向Z相交；
S803，驱动一对切刀20沿第一方向Z打开。
需要指出的是，驱动一对切刀20沿第一方向Z相互闭合是指，驱动第一切刀21和第二切刀22在第一方向Z上相互靠近；驱动一对切刀20沿第一方向Z打开是指，驱动第一切刀21和第二切刀22在第一方向Z上相互远离。
可以理解的是，本申请的一些实施例的裁切方法800可以但不局限于使用上述任一实施例的裁切装置100来实施。
图7示出了本申请一些实施例提供的裁切设备1000的示意性框图。根据本申请的一些实施例，如图7所示，本申请还提供了一种裁切设备1000，该裁切设备1000包括输送装置900和裁切装置100。输送装置900用于输送极片，裁切装置100用于裁切极片。
根据本申请实施例的裁切设备1000，裁切装置100具备调节机构40，能够 降低一对切刀20对料带进行裁切后、打开的过程中刮蹭料带，料带的裁切质量较高，满足工艺需求。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (17)

  1. 一种裁切装置，包括：
    基座；
    一对切刀，安装于所述基座；
    驱动机构，用于驱动所述一对切刀沿第一方向相互闭合或打开；
    调节机构，被配置为在所述驱动机构驱动所述一对切刀打开之前或打开过程中，驱动所述基座的至少一部分在第二方向上产生弹性变形，以使所述一对切刀在所述第二方向上产生间隙，所述第二方向为裁切物料的运动方向，并与所述第一方向相交。
  2. 根据权利要求1所述的裁切装置，其中，所述第二方向与所述第一方向垂直。
  3. 根据权利要求1或2所述的裁切装置，其中，所述基座包括第一座体和第二座体，所述第一座体的至少一部分能够相对所述第二座体沿所述第二方向运动；所述一对切刀包括第一切刀和第二切刀；所述第一切刀设置于所述第一座体上；所述第二切刀设置于所述第二座体上；所述调节机构被配置为在所述驱动机构驱动所述一对切刀打开之前或打开过程中，使所述第一座体的至少一部分能够相对所述第二座体沿所述第二方向产生弹性变形，并使所述第一切刀与所述第二切刀之间在所述第二方向上产生所述间隙。
  4. 根据权利要求3所述的裁切装置，其中，所述第一座体包括第一部分和第二部分，所述第一部分可相对所述第二座体沿所述第二方向产生弹性变形，所述第二部分与所述第二座体连接；所述第一切刀设置在所述第一部分上。
  5. 根据权利要求4所述的裁切装置，其中，所述第一部分与所述第二部分之间设置有至少一个可沿所述第二方向弹性变形的缝隙；所述调节机构被配置为调节所述缝隙的所述弹性变形。
  6. 根据权利要求5所述的裁切装置，其中，所述缝隙大体沿第三方向延伸，所述第三方向垂直于所述第二方向和所述第一方向。
  7. 根据权利要求5所述的裁切装置，其中，所述第一座体包括至少两个所述第一部分，所述第一部分沿第三方向排列，所述第三方向垂直于所述第二方向和所述第一方向。
  8. 根据权利要求4或5所述的裁切装置，其中，所述一对切刀包括第一切刀和第二切刀，所述第一切刀沿所述第一方向可移动地连接于所述第一部分，所述第二切刀固定于所述第二座体。
  9. 根据权利要求5-8中任一项所述的裁切装置，其中，所述第一部分设置有导向孔，所述裁切装置还包括：
    导向杆，沿所述第一方向延伸且可滑动地穿设于所述导向孔；
    其中，所述第一切刀固定于所述导向杆。
  10. 根据权利要求9所述的裁切装置，其中，所述缝隙包括相互连接的直线段和弧线段，所述直线段沿所述第三方向延伸，所述直线段和所述弧线段沿所述第三方向交替设置，所述导向孔的中心与所述弧线段的圆心重合。
  11. 根据权利要求10所述的裁切装置，其中，所述直线段的延长线经过所述导向孔的中心。
  12. 根据权利要求4或5所述的裁切装置，其中，所述第一部分设置有弱化部。
  13. 根据权利要求12所述的裁切装置，其中，所述弱化部包括多个通孔，每个所述通孔沿所述第三方向延伸，所述多个通孔沿所述第二方向排列。
  14. 根据权利要求4-13中任一项所述的裁切装置，其中，所述调节机构安装于所述第一部分和所述第二部分之间。
  15. 根据权利要求14所述的裁切装置，其中，所述调节机构包括压电陶瓷促动器。
  16. 一种裁切方法，包括：
    驱动一对切刀沿第一方向相互闭合，以对料带进行裁切；
    使所述一对切刀在第二方向上产生间隙，所述第二方向为裁切物料的运动方向，并与所述第一方向相交；
    驱动所述一对切刀沿所述第一方向打开。
  17. 一种裁切设备，包括：
    输送装置，用于输送极片；
    如权利要求1-15中任一项所述的裁切装置，用于裁切所述极片。
PCT/CN2023/082569 2022-04-12 2023-03-20 裁切装置、裁切方法及裁切设备 Ceased WO2023197833A1 (zh)

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EP23787480.5A EP4506094A4 (en) 2022-04-12 2023-03-20 CUTTING DEVICE, CUTTING METHOD AND CUTTING APPARATUS
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005003204B3 (de) * 2005-01-24 2006-06-22 Koenig & Bauer Ag Vorrichtung zum Querschneiden von einer Materialbahn in einzelne Materialabschnitte
DE102010019325A1 (de) * 2010-05-03 2011-11-03 RÜHLE GmbH Vorrichtung zum Bearbeiten von Lebensmitteln
CN209986063U (zh) * 2019-04-17 2020-01-24 深圳吉阳智能科技有限公司 一种极片裁切装置及切片设备
CN212793911U (zh) * 2020-06-28 2021-03-26 深圳市盛隆丰实业有限公司 裁切结构和包圆产品加工设备
CN214443491U (zh) * 2021-01-13 2021-10-22 无锡先导智能装备股份有限公司 刀具、裁切装置及叠片机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765293A (en) * 1971-02-26 1973-10-16 Moeller & Neumann Gmbh Overload protection arrangement for plate shears
US3968714A (en) * 1974-01-11 1976-07-13 Charles Kuchyt Heavy duty shear
US4131223A (en) * 1977-12-05 1978-12-26 Scovill Manufacturing Company Apparatus for gapping a slide fastener
US5237901A (en) * 1992-04-06 1993-08-24 Rohrer Special Machinery Inc. Shear
US8312801B2 (en) * 2007-12-28 2012-11-20 The Bardbury Company Methods and apparatus to adjust the lateral clearance between cutting blades of shearing machines
WO2011161786A1 (ja) * 2010-06-23 2011-12-29 株式会社トライヤーン シート状部材用カッター
CN102785266B (zh) * 2012-08-15 2013-12-25 南通大学 浮动式裁切装置
CN105592989B (zh) * 2013-09-30 2018-10-12 日产自动车株式会社 金属箔的切断装置
KR101750602B1 (ko) * 2014-10-28 2017-06-23 주식회사 엘지화학 전극 절단장치
CN207952750U (zh) 2017-11-17 2018-10-12 深圳市德鸿晟自动化科技有限公司 锂电池极片裁切装置
CN110227852A (zh) * 2019-06-19 2019-09-13 常德烟草机械有限责任公司 一种锂电池极片切割装置
CN211680215U (zh) * 2020-03-18 2020-10-16 惠州市华沃科技有限公司 一种无毛刺裁切装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005003204B3 (de) * 2005-01-24 2006-06-22 Koenig & Bauer Ag Vorrichtung zum Querschneiden von einer Materialbahn in einzelne Materialabschnitte
DE102010019325A1 (de) * 2010-05-03 2011-11-03 RÜHLE GmbH Vorrichtung zum Bearbeiten von Lebensmitteln
CN209986063U (zh) * 2019-04-17 2020-01-24 深圳吉阳智能科技有限公司 一种极片裁切装置及切片设备
CN212793911U (zh) * 2020-06-28 2021-03-26 深圳市盛隆丰实业有限公司 裁切结构和包圆产品加工设备
CN214443491U (zh) * 2021-01-13 2021-10-22 无锡先导智能装备股份有限公司 刀具、裁切装置及叠片机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4506094A4 *

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KR20240119342A (ko) 2024-08-06
US20250033234A1 (en) 2025-01-30
CN116921759A (zh) 2023-10-24
KR102865074B1 (ko) 2025-09-25

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