CN117977006A - Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method - Google Patents

Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method Download PDF

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Publication number
CN117977006A
CN117977006A CN202410081693.5A CN202410081693A CN117977006A CN 117977006 A CN117977006 A CN 117977006A CN 202410081693 A CN202410081693 A CN 202410081693A CN 117977006 A CN117977006 A CN 117977006A
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CN
China
Prior art keywords
lamination
pressing
knife
press
blade
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.)
Pending
Application number
CN202410081693.5A
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Chinese (zh)
Inventor
黄冬
韩冰
纪荣进
李聪
郑明清
陈杰
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.)
Huizhou Liwinon Energy Technology Co Ltd
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Huizhou Liwinon Energy 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.)
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Publication date
Application filed by Huizhou Liwinon Energy Technology Co Ltd filed Critical Huizhou Liwinon Energy Technology Co Ltd
Priority to CN202410081693.5A priority Critical patent/CN117977006A/en
Publication of CN117977006A publication Critical patent/CN117977006A/en
Pending legal-status Critical Current

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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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • 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
    • H01M10/0468—Compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/005—Devices for making primary cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a lamination pressing cutter adjusting device, lamination equipment and a lamination pressing cutter adjusting method, which belong to the technical field of lamination battery production.

Description

Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method
Technical Field
The invention relates to the technical field of laminated battery production, in particular to a laminated pressing tool adjusting device, laminated equipment and a laminated pressing tool adjusting method.
Background
The lamination machine is one of key equipment for lithium battery production, and is equipment for alternately stacking positive plates and negative plates and controlling the diaphragm to form Z-shaped lap winding in the process to manufacture the battery cell. In the process of lapping the diaphragm, a pressing knife needs to be controlled to press the diaphragm, so that the diaphragm is ensured not to be wrinkled in the lamination process, and the lamination overhang precision is improved. However, in the related art, a plurality of pressing blades with different sizes (mainly, length sizes) are required to be purchased to cope with the production of laminated batteries with different models, and repositioning and calibration are required after each time of changing the pressing blades, so that the production efficiency is affected. If the pressing knife with proper length is not replaced, the diaphragm is easy to fold, and the risk of lithium precipitation occurs.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the laminated pressing knife adjusting device which can adjust the length of the pressing knife to be matched with the size of the laminated battery cell without changing the pressing knife.
The invention also provides lamination equipment applying the lamination pressing tool adjusting device.
The invention also provides a lamination pressing tool adjusting method applied to the lamination equipment.
According to the first aspect of the invention, the laminated pressing cutter adjusting device comprises a device main body, a pressing cutter and a driving mechanism, wherein the pressing cutter is movably and adjustably arranged on the device main body along a first direction; the driving mechanism is arranged between the pressing knife and the device main body and used for controlling the pressing knife to move and adjust along the first direction.
The laminated pressing knife adjusting device provided by the embodiment of the invention has at least the following beneficial effects: according to the laminated pressing knife adjusting device, the pressing knife which is adjusted in the moving mode along the first direction is arranged, so that the extending length of the pressing knife relative to the device main body can be adjusted according to the size of the laminated battery core in the production of laminated batteries with different models and sizes, the extending length is matched with the size of the laminated battery core, the diaphragm is effectively pressed and fixed along the first direction, the diaphragm is prevented from being wrinkled, and the lithium precipitation risk caused by the diaphragm wrinkled is further solved. According to the laminated pressing cutter adjusting device, the extending length of the pressing cutter is automatically adjusted through the driving mechanism to adapt to production of laminated batteries of different types, so that a mode that a plurality of pressing cutters are purchased in the related prior art to be replaced to adapt to production of laminated batteries of different types is replaced, the processes of disassembling and assembling the pressing cutter and correcting the position of the pressing cutter are omitted, the production efficiency is greatly improved, a plurality of pressing cutters are not required to be purchased, and the production cost is reduced. From the aspect of compressing and fixing the diaphragm, the laminated pressing knife adjusting device can adjust the extending length of the pressing knife according to the length dimension of the laminated battery core, so that the extending length completely corresponds to the dimension of the laminated battery core, and in the related prior art, in order to improve efficiency and reduce cost, the situation that the laminated battery core with one dimension range is compatible by using the single-dimension pressing knife exists, so that the laminated pressing knife adjusting device has better compressing and fixing effect on the diaphragm, and is beneficial to improving the production quality of laminated batteries.
According to some embodiments of the invention, the drive mechanism comprises:
The rolling assembly comprises a rolling press part and a pressure-bearing part, wherein the rolling press part is rotationally arranged, the rolling press part is abutted against one end face of the pressing knife, and the pressure-bearing part is abutted against the other end face of the pressing knife relative to the rolling press part;
The driving assembly is in transmission connection with the roller press part and used for controlling the roller press part to rotate positively or negatively.
According to some embodiments of the invention, the roll nip comprises a drive wheel and the nip comprises a driven wheel, the axis of the driven wheel being parallel to the drive wheel.
According to some embodiments of the invention, at least one of the driving wheel and the driven wheel is provided with a first friction line on the outer peripheral surface, and at least one end surface of the pressing knife is provided with a second friction line along the length direction.
According to some embodiments of the invention, the drive assembly is drivingly connected to both ends of the roller nip.
According to some embodiments of the invention, the device body is provided with a limiting structure defining an adjustment channel extending in the first direction, the hold-down knife being housed within the adjustment channel.
According to some embodiments of the invention, the limiting structure comprises a chute provided on the device body, and the adjusting channel is formed by the chute.
According to a second aspect of the present invention, a lamination apparatus includes two sets of lamination press blade adjusting devices as described above, and the two sets of lamination press blade adjusting devices are arranged along the first direction and keep the press blade at one end of the two sets of lamination press blade adjusting devices that are opposite to each other.
The lamination equipment provided by the embodiment of the invention has at least the following beneficial effects: according to the lamination equipment, the two groups of lamination pressing knife adjusting devices are arranged along the first direction, the two groups of lamination pressing knife adjusting devices are kept opposite and vertical, the extension length of the two groups of pressing knives can be adjusted, and when lamination processing is carried out, only the lamination battery cores are orderly placed in the lamination station, and the diaphragms can be pressed and fixed from two sides by the two groups of lamination pressing knife adjusting devices. In carrying out the lamination battery production of different model sizes, can adjust the extension length of clamp knife for the device main part according to the size of lamination electric core, make it with the size adaptation of lamination electric core to effectively compress tightly fixedly to the diaphragm, avoid the diaphragm to produce the fold, and then solve the risk that produces the lithium analysis because of the diaphragm fold. When the lamination equipment disclosed by the invention is used for producing lamination batteries of different types, only the driving mechanism is used for adjusting the movement of the pressing cutter, the processes of disassembling and assembling the pressing cutter and correcting the position of the pressing cutter again are omitted, the production efficiency is greatly improved, a plurality of pressing cutters are not required to be purchased, and the production cost is reduced.
According to some embodiments of the invention, the maximum extension of the blade relative to the device body is at least equal to one half of the dimension of the laminated cell in the first direction.
According to a third aspect of the present invention, a lamination pressing tool adjusting method is applied to the lamination equipment, and includes: and starting the driving mechanism according to the length dimension of the processed lamination battery core, controlling the pressing knife to move and adjust along the first direction until the extension length of the pressing knife relative to the device main body is one half of the length dimension of the lamination battery core, and then performing lamination operation.
The lamination pressing tool adjusting method provided by the embodiment of the invention has at least the following beneficial effects: according to the laminated pressing knife adjusting method, the extension length of the pressing knife is half of the length of the laminated battery core according to the length dimension of the laminated battery core, when the laminated pressing knife adjusting devices on two sides compress the diaphragm, the edges of the pressing knives on two sides can be controlled to be connected, and the diaphragm is completely compressed along the length direction of the laminated battery core, so that the occurrence of wrinkles of the diaphragm is avoided. Compared with the mode of changing the pressing knife in the prior art, the method omits the steps of disassembling the pressing knife and installing the pressing knife, does not need to position and calibrate the pressing knife again compared with the mode of changing the pressing knife, and greatly improves the production efficiency and the production quality.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic alignment of a laminated blade adjustment apparatus and laminated battery cell of the present invention;
FIG. 2 is a schematic representation of the relationship of two sets of lamination press blade adjustment devices in the lamination apparatus of the present invention;
fig. 3 is a schematic structural view of a driving mechanism in the laminated pressing blade adjusting device of the present invention.
In the figure:
100-pressing cutters and 101-grooves;
200-driving components, 201-driving motors and 202-double-output-shaft reduction boxes;
300-rolling components, 301-driving wheels, 302-driven wheels, 303-mounting frames and 304-convex ribs;
400-lamination cell.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The lamination machine is one of key equipment for lithium battery production, and is equipment for alternately stacking positive plates and negative plates and controlling the diaphragm to form Z-shaped lap winding in the process to manufacture the battery cell. In the process of lapping the diaphragm, a pressing knife needs to be controlled to press the diaphragm, so that the diaphragm is ensured not to be wrinkled in the lamination process, and the lamination overhang precision is improved. However, in the related art, a plurality of pressing blades with different sizes (mainly, length sizes) are required to be purchased to cope with the production of laminated batteries with different models, and repositioning and calibration are required after each time of changing the pressing blades, so that the production efficiency is affected. If the pressing knife with proper length is not replaced, the diaphragm is easy to fold, and the risk of lithium precipitation occurs.
Therefore, the invention provides a laminated pressing knife adjusting device which is matched with the size of a laminated battery cell by adjusting the extension length of a pressing knife, and the pressing knife does not need to be replaced.
Referring to fig. 1 to 3, a laminated blade pressing adjustment device according to an embodiment of the present invention includes a device body, a blade 100, and a driving mechanism, the blade 100 being movably and adjustably provided to the device body in a first direction; the driving mechanism is arranged between the pressing knife 100 and the device main body and is used for controlling the pressing knife 100 to move and adjust along the first direction.
It will be appreciated that in the lamination process, the diaphragm is generally pressed and positioned from two ends corresponding to the length direction of the lamination cell 400, so that when the lamination process is applied, the lamination pressing tool adjusting device is properly adjusted, so that the first direction is parallel to the length direction of the patch cell.
According to the laminated pressing knife adjusting device, the pressing knife 100 which is adjusted in the moving mode along the first direction is arranged, so that the extending length of the pressing knife 100 relative to the device main body can be adjusted according to the size of the laminated battery core 400 in the production of laminated batteries with different types and sizes, the extending length is matched with the size of the laminated battery core 400, the diaphragm is effectively pressed and fixed along the first direction, the diaphragm is prevented from being wrinkled, and the lithium precipitation risk caused by the diaphragm wrinkled is further solved.
According to the laminated pressing tool adjusting device, the extension length of the pressing tool 100 is automatically adjusted through the driving mechanism to adapt to production of laminated batteries of different types, so that a mode of purchasing a plurality of pressing tools 100 to replace the mode of adapting to production of laminated batteries of different types in the related prior art is replaced, the processes of disassembling the pressing tool 100 and correcting the position of the pressing tool 100 again are omitted, the production efficiency is greatly improved, a plurality of pressing tools 100 are not required to be purchased, and the production cost is reduced.
Meanwhile, from the aspect of compressing and fixing the diaphragm, the laminated pressing blade adjusting device in the invention can adjust the extension length of the pressing blade 100 according to the length dimension of the laminated battery cell 400, so that the extension length completely corresponds to the dimension of the laminated battery cell 400, and in the related prior art, in order to improve efficiency and reduce cost, the laminated battery cell 400 in a dimension range is compatible by using the single-dimension pressing blade 100, so that the laminated pressing blade adjusting device in the invention has better compressing and fixing effect on the diaphragm, and is beneficial to improving the production quality of laminated batteries.
In some embodiments of the present invention, the driving mechanism includes a roll press assembly 300 and a driving assembly 200, wherein the roll press assembly 300 includes a roll press portion rotatably disposed and abutting one end face of the press blade 100, and a press portion abutting the other end face of the press blade 100 with respect to the roll press portion. The driving assembly 200 is in transmission connection with the roller press part and is used for controlling the roller press part to rotate positively or reversely. It can be understood that, since the pressing blade 100 is in a flat strip structure, two end surfaces of the pressing blade 100 in this embodiment are an end surface of the pressing blade 100 for pressing the diaphragm and another end surface facing away from the pressing blade. According to the laminated pressing tool adjusting device, the pressing tool 100 is pressed through the cooperation of the rolling part and the pressure bearing part, the pressing tool 100 can be positioned and clamped, the situation that the pressing tool 100 moves uncontrollably along the first direction is avoided, and therefore the movement adjusting precision of the pressing tool 100 can be ensured. When it is necessary to adjust the extension length of the pressing blade 100 with respect to the apparatus body, the driving assembly 200 is started, the roller press is controlled to rotate, the pressing blade 100 is driven to move in the first direction by friction, and the pressing blade 100 can be controlled to extend or retract with respect to the apparatus body by switching the rotation direction.
In some embodiments of the present invention, the pressure bearing portion is a polished rod structure, and the press blade 100 is clamped from both end surfaces of the press blade 100 in cooperation with the roll pressing portion. The pressure-bearing portion in this embodiment adopts a polished rod structure, so that the friction between the pressure-bearing portion and the pressure knife 100 can be prevented from affecting the adjustment accuracy of the movement adjustment of the pressure knife 100 along the first direction.
In some embodiments of the invention, the roller press comprises a driving wheel 301, the press comprises a driven wheel 302, and the axle center of the driven wheel 302 is parallel to the driving wheel 301. The rolling assembly 300 in this embodiment is provided with a structure form of the driving wheel 301 and the driven wheel 302, when the driving wheel 301 rotates under the driving of the driving assembly 200, the friction force is utilized to drive the pressing knife 100 to move along the first direction, and meanwhile, the driven wheel 302 also follows the rotation, so that the problem that the friction force affects the adjustment precision of the pressing knife 100 can be avoided.
It is understood that the driven wheel 302 may use the friction force between the driven wheel 302 and the pressing tool 100 to follow rotation when the pressing tool 100 moves, or a synchronous structure may be disposed between the driving wheel 301 and the driven wheel 302 to realize synchronous movement, which can be flexibly set by those skilled in the art according to requirements.
On the basis of the above-described structural arrangement, in some embodiments of the present invention, the driving wheel 301 and the driven wheel 302 are each provided with a first friction pattern on the outer peripheral surface, and both end surfaces of the pressing blade 100 are provided with a second friction pattern in the length direction. Since the driving wheel 301 drives the pressing blade 100 to move by friction force, improving the friction force is an effective means for ensuring the adjustment accuracy of the pressing blade 100. In this embodiment, by providing the first friction lines on the outer peripheral surfaces of the driving wheel 301 and the driven wheel 302 and providing the second friction lines on the two end surfaces of the pressing tool 100, the friction force for driving the pressing tool 100 to move can be greatly improved in a limited condition, and the adjustment accuracy of the pressing tool 100 is ensured.
Since one end surface of the pressing blade 100 is used for pressing the diaphragm, the second friction pattern located on the end surface adopts a concave pattern. The other end surface of the pressing tool 100 and the first friction lines on the driving wheel 301 and the driven wheel 302 may be convex lines or concave lines.
In some embodiments of the present invention, both the driving wheel 301 and the driven wheel 302 are provided as rubber wheels, by employing rubber wheels to ensure the clamping action on the press blade 100.
In some embodiments of the present invention, the primary wheel 301 and the secondary wheel 302 are each provided in a rigid structure that rigidly abuts the clamp knife 100 to effect clamping of the clamp knife 100.
Referring to fig. 3, in some embodiments of the present invention, a driving mechanism is provided with a mounting bracket 303, and a driving wheel 301 and a driven wheel 302 are rotatably mounted on the mounting bracket 303 in the up-down direction as shown, and a distance between the driving wheel 301 and the driven wheel 302 is adapted to the thickness of the pressing blade 100. The drive assembly 200 is mounted on a mounting bracket 303 above the drive wheel 301. The driving assembly 200 is provided with a driving motor 201 and a double-output-shaft reduction gearbox 202 connected with the output end of the driving motor 201, wherein the double-output-shaft reduction gearbox 202 is coaxially provided with two output shafts, and the output shafts are parallel to a driving wheel 301. The two output shafts are respectively connected with one end of the driving wheel 301 through a driving belt or a gear transmission. When the double-output-shaft reduction gearbox 202 is in operation, the driving motor 201 is started, and the driving wheel 301 is driven to rotate by power through the output shaft of the double-output-shaft reduction gearbox 202, so that the driving wheel 301 can be utilized to drive the pressing knife 100 to move. In this process, the driven wheel 302 cooperates with the driving wheel 301 to press the pressing blade 100, thereby ensuring a driving force for controlling the movement of the pressing blade 100. In the case where a synchronizing structure is provided between the driven wheel 302 and the driving wheel 301, the driven wheel 302 can also apply a moving driving force to the pressing blade 100. According to the embodiment, through driving the two ends of the driving wheel 301 at the same time, the deviation of the rotating speeds of the two ends of the driving wheel 301 caused by the assembly clearance can be avoided, and further the deviation problem of the pressing knife 100 is caused, so that the adjustment control precision of the pressing knife 100 is improved.
In some embodiments of the present invention, the outer circumferential surfaces of the driving wheel 301 and the driven wheel 302 are provided with driving gears, and the surface of the pressing blade 100 is provided with racks engaging the driving gears in a concave manner in the longitudinal direction (i.e., the first direction). When the driving wheel 301 rotates, the movement of the pressing blade 100 is precisely controlled by driving the gear to engage the rack.
In some embodiments of the present invention, the device body is provided with a limiting structure defining an adjustment channel extending in a first direction, and the compression knife 100 is accommodated in the adjustment channel. Because the pressing tool 100 needs to ensure the position accuracy to realize that the diaphragm is accurately pressed at the edge position of the width direction of the lamination battery cell 400 in the lamination processing, the structure setting of the embodiment is adopted, the pressing tool 100 is limited through the limiting structure, the pressing tool 100 can be ensured not to have position deviation, the pressing tool 100 is prevented from having deviation when the pressing tool 100 is moved and adjusted along the first direction, the pressing tool 100 is simultaneously enabled to have sufficient structural stability, and the deviation can not occur due to the stress of one end in the process of pressing the diaphragm.
In some embodiments of the present invention, the limiting structure includes a chute provided on the device body, and the adjusting channel is formed by the chute. The width and thickness dimensions of the chute are adapted to the press blade 100, so that the press blade 100 is limited in the up-down, left-right direction. The length dimension of the chute can be flexibly set, and only the requirement that the pressing knife 100 can accommodate the pressing knife 100 in the range of the adjusting stroke is met. Because the width dimension of the pressing knife 100 is not large, the clamping and limiting effects of the rolling assembly 300 on the pressing knife 100 are limited, the embodiment utilizes the sliding groove to limit the pressing knife 100, so that the limiting requirement can be met, the precision requirement of the pressing knife 100 can be met, the structural design is simple, and the stability is good. It is understood that, based on the structure of the present embodiment, the bearing portion may be formed by using the side wall of the chute, without separately providing the bearing portion.
In some embodiments of the present invention, the lamination press blade adjusting device is provided with a plurality of rolling assemblies 300 side by side along the first direction, and the limit structure is formed in such a manner that the plurality of rolling assemblies 300 clamp the press blade 100 together. It will be appreciated that in this embodiment, the adjustment channel is formed by the roll space between the roll nip and the press nip. Considering that the pressing blade 100 is not wide, the clamping of the pressing blade 100 by the rolling assembly 300 is only the clamping in the thickness direction, so further, the limiting structure of the embodiment further includes a plurality of sub-roller assemblies corresponding to the two narrow sides of the pressing blade 100 in the thickness direction, each sub-roller assembly is rotatably provided with one pressing roller, and the distance between the two pressing rollers of the sub-roller assembly is adapted to the width of the pressing blade 100, so that when the pressing blade 100 moves to the sub-roller assembly, the two pressing rollers abut against the two narrow sides of the pressing blade 100 in the thickness direction.
Referring to fig. 1 to 3, in some embodiments of the present invention, a lamination press blade adjusting apparatus includes an apparatus body, a press blade 100, and a driving mechanism. The device body is provided with a chute in which the press blade 100 is slidably fitted. The driving mechanism comprises a mounting frame 303, a driving wheel 301, a driven wheel 302, a driving motor 201 and a double-output shaft reduction gearbox 202 which are arranged on the mounting frame 303, wherein the mounting frame 303 is fixedly connected with the device main body and is positioned at one end of the chute. The driving wheel 301 and the driven wheel 302 are vertically distributed and rotatably mounted on the mounting frame 303. The driving wheel 301 and the driven wheel 302 are identical in size, and the distance (not the center-to-center distance) therebetween is adapted to the thickness of the pressing blade 100 so as to abut against the upper and lower end surfaces of the pressing blade 100. The two sides of the double-output shaft reduction gearbox 202 are coaxially provided with output shafts, and the two output shafts are correspondingly connected with the two ends of the driving wheel 301 through a transmission belt. The outer peripheral surfaces of the driving wheel 301 and the driven wheel 302 are uniformly provided with a plurality of ribs 304, and the lengths of the ribs 304 are parallel to the axes of the driving wheel 301 and the driven wheel 302. The upper and lower end surfaces of the pressing knife 100 are provided with a plurality of grooves 101 along the length direction, and the distance between two adjacent grooves 101 is matched with the arc-shaped length between two adjacent ribs 304 on the driving wheel 301 and the driven wheel 302, so that the ribs 304 are matched with the grooves 101 in the rotation process.
It will be appreciated that the driving mechanism may also be a telescopic structure such as an air cylinder, etc., which is disposed at the end of the pressing blade 100 to control the stretching or retracting of the pressing blade 100.
The invention also provides lamination equipment, which comprises two groups of lamination pressing knife adjusting devices, wherein the two groups of lamination pressing knife adjusting devices are distributed along the first direction, and the pressing knife 100 is kept at the opposite ends of the two groups of lamination pressing knife adjusting devices. Each group comprises two lamination pressing knife adjusting devices. When the laminated battery cell 400 is placed on a laminated station and the diaphragm is wound, the four laminated pressing knife adjusting devices enter one end of the diaphragm, which is far away from the laminated battery cell 400, from two ends of the laminated battery cell 400 in the length direction and move towards the diaphragm, so that the diaphragm is pressed and fixed at four vertex angle positions corresponding to the laminated battery cell 400.
According to the lamination equipment, two groups of lamination press knife adjusting devices are arranged along the first direction, and the two groups of lamination press knife adjusting devices are kept opposite to each other, so that the extension length of the two groups of press knives 100 can be adjusted, and when lamination processing is carried out, only the lamination battery cores 400 are orderly placed in a lamination station, and the diaphragms can be pressed and fixed from two sides by the two groups of lamination press knife adjusting devices. In carrying out the lamination battery production of different model sizes, can be according to lamination electric core 400's size adjustment pressure sword 100 for the extension length of device main part, make it with lamination electric core 400's size adaptation to effectively compress tightly fixedly to the diaphragm, avoid the diaphragm to produce the fold, and then solve the risk that produces the lithium evolution because of the diaphragm fold. When the lamination equipment is used for producing lamination batteries of different types, only the driving mechanism is used for adjusting the movement of the pressing knife 100, the processes of disassembling and assembling the pressing knife 100 and correcting the position of the pressing knife 100 again are omitted, the production efficiency is greatly improved, a plurality of pressing knives 100 are not required to be purchased, and the production cost is reduced.
In some embodiments of the present invention, the maximum extension of the clamping knife 100 relative to the device body is at least equal to one half the dimension of the laminated cell 400 in the first direction. It will be appreciated that when the diaphragm is fully compressed along the length direction of the laminated cell 400, the diaphragm will not wrinkle any more, and the embodiment can ensure that the diaphragm is fully compressed along the length direction of the laminated cell 400 by controlling the movement of the laminated blade adjusting device by limiting the adjusting length of the blades 100, and no blank area is left between the two blades 100. It should be noted that the lamination apparatus is further provided with a related adjusting structure for controlling the movement of the lamination press blade adjusting device, which will not be described herein.
The invention also provides a lamination pressing tool adjusting method which is applied to the lamination equipment of any embodiment, and comprises the following steps: according to the length dimension of the processed laminated battery cell 400, a driving mechanism is started, the pressing knife 100 is controlled to move and adjust along the first direction until the extension length of the pressing knife 100 relative to the device main body is half of the length dimension of the laminated battery cell 400, and then lamination operation is carried out.
According to the laminated pressing knife adjusting method, the extension length of the pressing knife 100 is half of the length of the laminated battery cell 400 according to the length dimension of the laminated battery cell 400, when the laminated pressing knife adjusting devices on two sides compress the diaphragm, the edges of the pressing knives 100 on two sides can be controlled to be connected, and the diaphragm is completely compressed along the length direction of the laminated battery cell 400, so that the occurrence of wrinkles of the diaphragm is avoided. Compared with the prior art that the pressing knife 100 is replaced, the steps of disassembling the pressing knife 100 and installing the pressing knife 100 are omitted, and compared with the method that the pressing knife 100 is replaced, the pressing knife 100 does not need to be positioned and calibrated again, so that the production efficiency and the production quality are greatly improved.
In summary, according to the laminated pressing tool adjusting device, the laminated equipment and the laminated pressing tool adjusting method provided by the invention, by adjusting the telescopic length of the pressing tool 100, the membrane can be ensured not to be wrinkled in the lamination process, the laminated battery production of various types can be compatible, the mold changing time in the production process is reduced, and the precision of the laminated overhang can be improved compared with that of the conventional pressing tool 100.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (10)

1. A lamination press blade adjusting device, comprising:
a device body;
a pressing blade provided in the apparatus main body so as to be movable and adjustable in a first direction;
The driving mechanism is arranged between the pressing knife and the device main body and used for controlling the pressing knife to move and adjust along the first direction.
2. The lamination press adjustment apparatus of claim 1, wherein the drive mechanism comprises:
The rolling assembly comprises a rolling press part and a pressure-bearing part, wherein the rolling press part is rotationally arranged, the rolling press part is abutted against one end face of the pressing knife, and the pressure-bearing part is abutted against the other end face of the pressing knife relative to the rolling press part;
The driving assembly is in transmission connection with the roller press part and used for controlling the roller press part to rotate positively or negatively.
3. The laminated knife adjusting apparatus of claim 2, wherein the roller press comprises a drive wheel and the press comprises a driven wheel, the axis of the driven wheel being parallel to the drive wheel.
4. The laminated knife pressing adjustment device of claim 3, wherein at least one of the driving wheel and the driven wheel is provided with a first friction line on an outer peripheral surface, and at least one end surface of the knife pressing is provided with a second friction line along a length direction.
5. The lamination knife adjusting apparatus of claim 2, wherein the drive assembly drivingly connects the two ends of the roller nip.
6. The laminated knife adjustment apparatus of claim 1, wherein the apparatus body is provided with a limiting structure defining an adjustment channel extending in the first direction, the knife being received within the adjustment channel.
7. The laminated knife adjusting apparatus of claim 6, wherein the limiting structure comprises a chute provided on the apparatus body, and the adjusting passage is formed by the chute.
8. A lamination apparatus comprising two sets of lamination press blade adjustment means according to claim 1, said two sets of lamination press blade adjustment means being arranged in said first direction and maintaining said press blade at opposite ends of said two sets of lamination press blade adjustment means.
9. The lamination apparatus of claim 8, wherein a maximum extension of the press blade relative to the device body is at least equal to one half of a dimension of a lamination cell in the first direction.
10. A lamination press adjustment method for the lamination apparatus of claim 8, comprising: and starting the driving mechanism according to the length dimension of the processed lamination battery core, controlling the pressing knife to move and adjust along the first direction until the extension length of the pressing knife relative to the device main body is one half of the length dimension of the lamination battery core, and then performing lamination operation.
CN202410081693.5A 2024-01-19 2024-01-19 Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method Pending CN117977006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410081693.5A CN117977006A (en) 2024-01-19 2024-01-19 Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410081693.5A CN117977006A (en) 2024-01-19 2024-01-19 Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method

Publications (1)

Publication Number Publication Date
CN117977006A true CN117977006A (en) 2024-05-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410081693.5A Pending CN117977006A (en) 2024-01-19 2024-01-19 Lamination pressing tool adjusting device, lamination equipment and lamination pressing tool adjusting method

Country Status (1)

Country Link
CN (1) CN117977006A (en)

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