CN219123285U - Battery cell blanking device - Google Patents

Battery cell blanking device Download PDF

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Publication number
CN219123285U
CN219123285U CN202223194822.7U CN202223194822U CN219123285U CN 219123285 U CN219123285 U CN 219123285U CN 202223194822 U CN202223194822 U CN 202223194822U CN 219123285 U CN219123285 U CN 219123285U
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China
Prior art keywords
blanking
pressing plate
battery cell
blanking clamp
driving unit
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Active
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CN202223194822.7U
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Chinese (zh)
Inventor
曹海霞
毛德智
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Zhuhai Higrand Technology Co Ltd
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Zhuhai Higrand Technology Co Ltd
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Priority to CN202223194822.7U priority Critical patent/CN219123285U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

Electric core unloader includes: the blanking clamp assembly comprises a blanking clamp capable of moving in the transverse direction and/or the longitudinal direction, the blanking clamp comprises a pair of inner blanking clamp plates and a pair of outer blanking clamp plates, the outer side of each inner blanking clamp plate is correspondingly provided with an outer blanking clamp plate, the inner blanking clamp plates and the outer blanking clamp plates which are correspondingly arranged can move relatively, and the inner blanking clamp plates are provided with heating elements; the shaping assembly comprises a cold pressing and blanking mechanism, a hot pressing mechanism and a battery cell conveying mechanism, wherein the cold pressing and blanking mechanism and the hot pressing mechanism are sequentially arranged, and the battery cell conveying mechanism conveys the battery cell from the position of the cold pressing and blanking mechanism to the position of the hot pressing mechanism. The utility model can heat the arc angle areas on two sides of the battery core, can rapidly transfer the battery core to the cold pressing and hot pressing shaping station, and performs high-pressure cold pressing and hot pressing shaping on the battery core, so that the inner pole piece and the diaphragm are stuck together, wrinkling is prevented, and the quality of the battery core is improved.

Description

Battery cell blanking device
Technical Field
The utility model belongs to the technical field of lithium battery manufacturing equipment, and particularly relates to a battery core blanking device in lithium battery winding equipment.
Background
The battery cell of the large-size square lithium battery can be produced by adopting two processes of winding and lamination. The winding process has a higher efficiency than the lamination process. The winding equipment used in the winding process is that the positive pole piece, the negative pole piece and the diaphragm are concentrated to the winding needle, the winding needle clamps the diaphragm and the pole piece which are stacked in sequence to wind the diaphragm and the pole piece to form a winding core, and then the circular battery core is stretched into a square battery core through a blanking device. The square battery cell manufactured through the winding process can form arc angles at two ends of the battery cell in the width direction in the stretching process, gaps can exist between the pole pieces in the arc angle areas and the diaphragm, the circumference of the inner layer of the battery cell is reduced, the diaphragm and the pole pieces are easily wrinkled, and the quality of a finished battery is affected.
Disclosure of Invention
The utility model aims to provide a battery cell blanking device which can better shape a battery cell and prevent a diaphragm and a pole piece in an arc angle area from being wrinkled so as to improve the quality of a battery.
In order to achieve the above object, the present utility model adopts the following technical solutions:
electric core unloader includes: the blanking clamp assembly comprises a blanking clamp capable of moving in the transverse direction and/or the longitudinal direction, the blanking clamp comprises a pair of inner blanking clamp plates and a pair of outer blanking clamp plates, the outer side of each inner blanking clamp plate is correspondingly provided with an outer blanking clamp plate, the inner blanking clamp plates and the outer blanking clamp plates which are correspondingly arranged can move relatively, and the inner blanking clamp plates are provided with heating elements; the shaping assembly comprises a cold pressing and blanking mechanism, a hot pressing mechanism and a battery cell conveying mechanism, wherein the cold pressing and blanking mechanism and the hot pressing mechanism are sequentially arranged, and the battery cell conveying mechanism conveys the battery cell from the position of the cold pressing and blanking mechanism to the position of the hot pressing mechanism.
According to the battery cell blanking device, the cold pressing blanking mechanism comprises the mounting frame, and the pulling-out pressing plate and the cold pressing plate which are arranged on the mounting frame, wherein the pulling-out pressing plate and the cold pressing plate can move along the vertical direction independently of each other, so that the pulling-out pressing plate and the cold pressing plate are respectively pressed in the middle of the battery cell and around the battery cell; the cold pressing and blanking mechanism is used for being matched with the blanking clamp, taking down the battery cell from the blanking clamp to the battery cell conveying mechanism, and carrying out cold pressing shaping on the battery cell, and the hot pressing mechanism is used for carrying out hot pressing shaping on the battery cell.
According to the battery cell blanking device, optionally, the cold pressing blanking mechanism further comprises a first pressing plate driving unit for driving the pulling-out pressing plate to move up and down and a second pressing plate driving unit for driving the cold pressing plate to move up and down, and the driving force of the first pressing plate driving unit is smaller than that of the second pressing plate driving unit.
According to the battery cell blanking device, optionally, the first pressing plate driving unit is an air cylinder, and the second pressing plate driving unit is a motor.
According to the battery cell blanking device, optionally, the cold pressing plate is provided with the hollowed-out portion, and the pulling-out pressing plate is located in the hollowed-out portion.
According to the battery cell blanking device, the hot pressing mechanism comprises the hot pressing plate capable of being pressed on the battery cell and the hot pressing plate driving unit for driving the hot pressing plate to move up and down.
The battery core blanking device is characterized in that the blanking clamp assembly comprises a battery core transverse moving mechanism used for transferring the battery core in the horizontal direction, the battery core transverse moving mechanism comprises a transverse moving driving unit, a transverse moving sliding frame and a transverse moving transmission piece, the blanking clamp is arranged on the transverse moving sliding frame, and the transverse moving driving unit is connected with the transverse moving sliding frame through the transverse moving transmission piece and controls the transverse moving sliding frame to move in the horizontal direction.
The battery core blanking device is characterized in that the blanking clamp assembly comprises a battery core longitudinal movement mechanism used for transferring the battery core in the vertical direction, the battery core longitudinal movement mechanism comprises a longitudinal movement driving unit, a longitudinal movement sliding frame and a longitudinal movement transmission piece, the blanking clamp is arranged on the longitudinal movement sliding frame, the longitudinal movement sliding frame is arranged on the transverse movement sliding frame in a vertically movable mode, and the longitudinal movement driving unit is connected with the longitudinal movement sliding frame through the longitudinal movement transmission piece and controls the longitudinal movement sliding frame to move up and down.
The battery cell blanking device is characterized in that the outer blanking clamp plate is controlled by the clamping cylinder to move in the radial direction of the winding needle, so that the outer blanking clamp plate is close to or separated from the inner blanking clamp plate; and/or the inner blanking clamp plate is controlled by the contact pin driving unit to be inserted into or withdrawn from the battery cell along the axial direction of the battery cell.
The battery cell blanking device, as described above, optionally, further comprises a stretching driving unit, wherein the stretching driving unit is used for controlling the inner blanking clamping plates and the outer blanking clamping plates which are respectively positioned at two sides of the width direction of the battery cell and clamp the pole piece and the diaphragm to stretch the battery cell outwards.
According to the technical scheme, the blanking clamp provided by the utility model adopts the inner blanking clamp plate with the heating function, and in the process that the blanking device takes down the battery core from the winding needle, the arc angle areas on two sides of the battery core can be heated, so that the pole pieces and the diaphragms positioned in the areas are deformed in a shaping way, the gaps between the pole pieces and the diaphragms in the areas are reduced, and the risk of wrinkling of the pole pieces and the diaphragms in the inner layer is reduced; meanwhile, the cold pressing and blanking mechanism in the shaping assembly has the cold pressing and shaping functions, and can simultaneously realize blanking of the battery cells from the winding needle, two working procedures can be completed by one station, the battery cells can be rapidly transferred to the cold pressing and hot pressing shaping stations, and the battery cells are subjected to high-pressure cold pressing and hot pressing and shaping, so that the inner-layer pole pieces and the diaphragms are stuck together, wrinkling is prevented, and the quality of the battery cells is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the following description will briefly explain the embodiments or the drawings required for the description of the prior art, it being obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a battery cell blanking device according to an embodiment of the present utility model;
FIG. 2 is a schematic view of another angle of the battery cell blanking device according to the embodiment of the present utility model;
FIG. 3 is a schematic structural view of a blanking clip assembly according to an embodiment of the present utility model;
FIG. 4 is a schematic structural view of a blanking clip according to an embodiment of the present utility model;
FIG. 5 is a schematic view of another angle of the blanking clip according to the embodiment of the present utility model;
FIG. 6 is a schematic structural view of a shaping assembly according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a shaping assembly according to another embodiment of the present utility model.
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
Detailed Description
In describing embodiments of the present utility model in detail, the drawings showing the structure of the device are not to scale locally for ease of illustration, and the schematic illustrations are merely examples, which should not limit the scope of the utility model. It should be noted that the drawings are in simplified form and are not to scale precisely, but rather are merely intended to facilitate and clearly illustrate the embodiments of the present utility model. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance or implying the number of technical features indicated; the terms "forward," "reverse," "bottom," "upper," "lower," and the like are used for convenience in describing and simplifying the description only, and do not denote or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, the battery cell blanking device of the embodiment includes a blanking clamp assembly 1 and a shaping assembly 2, wherein the blanking clamp assembly 1 is used for taking down a battery cell from a winding core and moving to the shaping assembly 2, and the shaping assembly 2 performs cold pressing and hot pressing on the battery cell in sequence to shape the battery cell.
The blanking clamp assembly 1 comprises a blanking clamp 1-1, a cell traversing mechanism 1-2 and a cell longitudinal moving mechanism 1-3, wherein the cell traversing mechanism 1-2 is used for transferring a cell (blanking clamp) in the transverse direction (horizontal direction) so that the cell moves in the horizontal direction and moves to the shaping assembly 2. The cell longitudinal moving mechanism 1-3 is used for transferring the cell in the longitudinal direction (vertical direction) and moving the cell to the same height position as the shaping assembly 2. The cell traversing mechanism 1-2 of the present embodiment includes a traversing driving unit 1-2a, a traversing carriage 1-2b and a traversing transmission member 1-2c, the traversing driving unit 1-2a is connected to the traversing carriage 1-2b through the traversing transmission member 1-2c, and controls the traversing carriage 1-2b to move in the horizontal direction. The traversing driving unit 1-2a of the embodiment adopts a motor, the traversing driving piece 1-2c adopts a screw rod driving piece, an output shaft of the motor is connected with a screw rod, and a screw rod nut is connected with the traversing carriage 1-2b, so that when the motor runs, the movement of the traversing carriage is controlled by the screw rod driving piece.
The battery cell longitudinal movement mechanism 1-3 of the embodiment comprises a longitudinal movement driving unit 1-3a, a longitudinal movement sliding frame 1-3b and a longitudinal movement transmission piece 1-3c, wherein the blanking clamp 1-1 is arranged on the longitudinal movement sliding frame 1-3b, and the longitudinal movement sliding frame 1-3b is arranged on the transverse movement sliding frame 1-2b in a vertically movable manner. The longitudinal movement driving unit 1-3a is connected with the longitudinal movement sliding frame 1-3b through the longitudinal movement transmission piece 1-3c, and controls the longitudinal movement sliding frame 1-3b and the blanking clamp 1-1 positioned on the longitudinal movement sliding frame to move up and down. The longitudinal movement driving units 1-3a and the longitudinal movement transmission members 1-3c of the embodiment also respectively adopt motors and screw transmission members.
Referring to fig. 3, 4 and 5, the blanking clamp 1-1 of the present embodiment includes a pair of inner blanking clamp plates 1-1a and a pair of outer blanking clamp plates 1-1b, wherein an outer blanking clamp plate 1-1b is correspondingly disposed on the outer side of each inner blanking clamp plate 1-1a, and the inner blanking clamp plates 1-1a and the outer blanking clamp plates 1-1b which are correspondingly disposed are relatively disposed in the radial direction of the winding needle 100 and can relatively move therebetween so as to be close to each other for clamping or separating from each other. The heating element is arranged in the inner blanking clamp plate 1-1a, so that the inner blanking clamp plate 1-1a has a heating function, and when the inner blanking clamp plate 1-1a and the outer blanking clamp plate 1-1b are clamped, a pole piece and a diaphragm between the inner blanking clamp plate 1-1a and the outer blanking clamp plate 1-1b can be heated. The outer blanking clamp 1-1b of the present embodiment controls its movement in the radial direction of the winding needle 100 by a clamping cylinder 1-4 (outer blanking clamp clamping driving unit) so as to approach the inner blanking clamp 1-1a and to leave the inner blanking clamp 1-1a. The inner blanking clamp plate 1-1a and the outer blanking clamp plate 1-1b can synchronously move outwards under the action of a stretching driving unit (not shown), so that the round battery cell 200 is stretched into a square battery cell. The stretching driving unit of the embodiment adopts a motor, and after the winding needle 100 withdraws from the battery cell, the motor controls the inner blanking clamp plate 1-1a and the outer blanking clamp plate 1-1b which are respectively clamped between the pole pieces and the diaphragms positioned at the two ends of the width direction of the battery cell to be mutually far away through the stretching screw rod 1-5, so that the battery cell 200 is stretched outwards to form a square shape. The inner blanking clamp plate 1-1a can be simultaneously inserted into or withdrawn from the battery cell along the axial direction of the battery cell 200 under the control of the pin driving unit 1-6. The pin driving units 1 to 6 of the present embodiment employ air cylinders.
Referring to fig. 1 and 7, the shaping assembly 2 of the present embodiment includes a cold-pressing mechanism 2-1, a hot-pressing mechanism 2-2, and a cell conveying mechanism 2-3. Wherein, the cold pressing blanking mechanism 2-1 is used for being matched with the blanking clamp 1-1, and the battery cell 200 is taken down from the blanking clamp 1-1 to the battery cell conveying mechanism 2-3, and meanwhile, the battery cell 200 is subjected to cold pressing shaping. The hot pressing mechanism 2-2 is used for hot pressing and shaping the battery cell 200 under the heating condition, and further compacting the battery cell 200. The cell conveying mechanism 2-3 is used for conveying the cells from the cold pressing blanking mechanism 2-1 to the cell conveying mechanism 2-3.
The cold-pressing blanking mechanism 2-1 comprises a mounting frame 2-1a, a pulling-out pressing plate 2-1b and a cold-pressing plate 2-1c, wherein the pulling-out pressing plate 2-1b and the cold-pressing plate 2-1c can move in the vertical direction, so that the battery cell is pressed on the battery cell conveying mechanism 2-3. The up-and-down movement of the pull-out pressing plate 2-1b and the cold pressing plate 2-1c are controlled by different driving units respectively, the pull-out pressing plate 2-1b is controlled by a first pressing plate driving unit (not shown) to move up and down and press the middle of the battery cell, and the cold pressing plate 2-1c is controlled by a second pressing plate driving unit 2-4 to move up and down and press the periphery of the battery cell. Because the action of pulling out clamp plate 2-1b is to press the electric core, make electric core position fixed, make things convenient for interior unloading splint 1-1a to withdraw from the electric core, do not need too big pressure, and cold pressing clamp plate 2-1 c's action is to cold pressing the design to the electric core, therefore the driving force (the downforce) of first clamp plate drive unit is less than the driving force (the downforce) of second clamp plate drive unit, can adopt the quick drive unit of action. In the embodiment, the air cylinder is used as a first pressing plate driving unit, and the motor is used as a second pressing plate driving unit, so that corresponding pressure is provided according to different requirements. The cold pressing plate 2-1c of the embodiment is in a shape like a Chinese character 'hui', that is, the cold pressing plate 2-1c has a hollowed-out portion, the drawing pressing plate 2-1b is square and is arranged in the hollowed-out portion of the cold pressing plate 2-1c, and the cold pressing plate 2-1c surrounds the periphery of the drawing pressing plate 2-1 b. The second pressing plate driving unit of the embodiment controls the cold pressing plate 2-1c to move up and down through the driving wheel 2-5, the synchronous belt 2-6 and the driving screw rod 2-7. The structure of the hot pressing mechanism 2-2 is approximately the same as that of the cold pressing mechanism, except that the hot pressing mechanism does not have a small pressing plate pressed in the middle of the battery core, but a whole hot pressing plate pressed on the battery core, namely the hot pressing mechanism 2-2 comprises a hot pressing plate and a hot pressing plate driving unit for controlling the hot pressing plate to move up and down. The electric core conveying mechanism 2-3 is positioned below the cold blanking mechanism 2-1 and the hot pressing mechanism-2, and in specific application, the electric core conveying mechanism 2-3 can adopt a conventional conveyer such as a belt conveyer and the like.
The working process of the battery cell blanking device is described below:
after the winding needle 100 is wound into the battery core 200 by sandwiching the pole pieces and the diaphragms which are sequentially stacked, the inner blanking clamp plate 1-1a extends into the battery core 200 from the periphery of the winding needle 100 and is positioned at the innermost layer of the battery core 200;
then the outer blanking clamp plate 1-1b moves towards the direction close to the inner blanking clamp plate 1-1a, and is matched with the inner blanking clamp plate 1-1a to clamp a pole piece and a diaphragm positioned between the two, and the two sets of outer blanking clamp plates 1-1b and the inner blanking clamp plate 1-1a are respectively clamped at two sides of the battery cell 200;
after the outer blanking clamp plate 1-1b and the inner blanking clamp plate 1-1a are clamped, the battery cell 200 is stretched to two sides, the round battery cell 200 is stretched to be square, and in the process that the outer blanking clamp plate 1-1b and the inner blanking clamp plate 1-1a clamp pole pieces and diaphragms, the inner blanking clamp plate 1-1a heats the inner layers of the battery cell 200, so that the pole pieces and diaphragms in arc angle areas at two ends of the battery cell 200 generate certain shaping deformation, and gaps between the diaphragms in the arc angle areas and the pole pieces are reduced; the arc angle area is an area of the battery cell clamped by the inner blanking clamp plate and the outer blanking clamp plate;
after the electric core 200 is stretched, the internal blanking clamp plate 1-1a stops heating, the electric core traversing mechanism 1-2 and the electric core longitudinal moving mechanism 1-3 act, the electric core 200 is transferred to the electric core conveying mechanism 2-3, and the electric core 200 is conveyed to the position where the cold pressing blanking mechanism 2-1 is located by the electric core conveying mechanism 2-3; the pull-out pressing plate 2-1 moves downwards to press the battery cell 200 on the battery cell conveying mechanism 2-3, the pull-out pressing plate 2-1 presses the middle of the battery cell, and the movement of the inner blanking clamping plate 1-1a is not influenced, so that the inner blanking clamping plate 1-1a can smoothly withdraw from the battery cell 200, then the cold pressing plate 2-1c moves downwards and presses the periphery of the battery cell 200, and cold pressing shaping is carried out on the battery cell 200; the cold-pressing blanking mechanism 2-1 finishes the operations of taking out the battery cell from the winding needle and cold-pressing shaping in one station;
after cold pressing, the cell conveying structure 2-3 conveys the cell 200 to the position of the hot pressing mechanism 2-2, the hot pressing plate moves downwards and presses the cell 200, the cell 200 is hot-pressed and shaped, and after hot pressing, the cell 200 is conveyed to the next station.
According to the blanking clamp, the internal blanking clamp plate with the heating function is adopted, and in the process of blanking the battery cell from the winding needle, the pole pieces and the diaphragms in the arc angle areas on two sides of the battery cell are heated, so that the pole pieces and the diaphragms in the arc angle areas generate a certain amount of plastic deformation, the gap between the diaphragm pole pieces in the area is reduced, the risk of wrinkling of the inner pole pieces is reduced, and the quality of the battery cell is improved; moreover, cold pressing down the feed mechanism in the design subassembly not only has the function of cold pressing the design, can also realize the unloading of electric core from the needle of rolling up simultaneously, and two processes just can be accomplished to a station, can take out the electric core from the unloading clamp promptly after can carrying out the high pressure design to the electric core, reduces the risk of inlayer fold, is favorable to improving the quality of electric core.
Of course, the technical concept of the present utility model is not limited to the above embodiments, and many different embodiments can be obtained according to the concept of the present utility model, for example, the driving unit may be a motor, a conventional mechanical driving structure such as a cylinder, an electric rod, a servo mechanism, etc., and the sliding connection structure between the components may be a structure of a guide rail and a slide block, or a structure of a slide groove and a slide block; such modifications and equivalents are intended to be included within the scope of the present utility model.

Claims (10)

1. Electric core unloader, its characterized in that includes:
the blanking clamp assembly comprises a blanking clamp capable of moving in the transverse direction and/or the longitudinal direction, the blanking clamp comprises a pair of inner blanking clamp plates and a pair of outer blanking clamp plates, the outer side of each inner blanking clamp plate is correspondingly provided with an outer blanking clamp plate, the inner blanking clamp plates and the outer blanking clamp plates which are correspondingly arranged can move relatively, and the inner blanking clamp plates are provided with heating elements;
the shaping assembly comprises a cold pressing and blanking mechanism, a hot pressing mechanism and a battery cell conveying mechanism, wherein the cold pressing and blanking mechanism and the hot pressing mechanism are sequentially arranged, and the battery cell conveying mechanism conveys the battery cell from the position of the cold pressing and blanking mechanism to the position of the hot pressing mechanism.
2. The cell blanking device of claim 1, wherein: the cold pressing and blanking mechanism comprises a mounting frame, and a pulling-out pressing plate and a cold pressing plate which are arranged on the mounting frame, wherein the pulling-out pressing plate and the cold pressing plate can move along the vertical direction independently of each other, so that the pulling-out pressing plate and the cold pressing plate are respectively pressed in the middle of the battery core and around the battery core; the cold pressing and blanking mechanism is used for being matched with the blanking clamp, taking down the battery cell from the blanking clamp to the battery cell conveying mechanism, and carrying out cold pressing shaping on the battery cell, and the hot pressing mechanism is used for carrying out hot pressing shaping on the battery cell.
3. The cell blanking device of claim 2, wherein: the cold pressing and blanking mechanism further comprises a first pressing plate driving unit for driving the pulling-out pressing plate to move up and down and a second pressing plate driving unit for driving the cold pressing plate to move up and down, and the driving force of the first pressing plate driving unit is smaller than that of the second pressing plate driving unit.
4. The cell blanking device of claim 3, wherein: the first pressing plate driving unit is an air cylinder, and the second pressing plate driving unit is a motor.
5. The cell blanking device of claim 2, wherein: the cold pressing plate is provided with a hollowed-out portion, and the pulling-out pressing plate is located in the hollowed-out portion.
6. The cell blanking device of claim 1, wherein: the hot pressing mechanism comprises a hot pressing plate capable of being pressed on the battery core and a hot pressing plate driving unit for driving the hot pressing plate to move up and down.
7. The cell blanking device of claim 1, wherein: the blanking clamp assembly further comprises a battery core transverse moving mechanism for transferring the battery core in the horizontal direction, the battery core transverse moving mechanism comprises a transverse moving driving unit, a transverse moving sliding frame and a transverse moving transmission piece, the blanking clamp is arranged on the transverse moving sliding frame, and the transverse moving driving unit is connected with the transverse moving sliding frame through the transverse moving transmission piece and controls the transverse moving sliding frame to move in the horizontal direction.
8. The cell blanking device of claim 7, wherein: the blanking clamp assembly further comprises a battery core longitudinal movement mechanism for transferring the battery core in the upper degree in the vertical direction, the battery core longitudinal movement mechanism comprises a longitudinal movement driving unit, a longitudinal movement sliding frame and a longitudinal movement transmission part, the blanking clamp is arranged on the longitudinal movement sliding frame, the longitudinal movement sliding frame is arranged on the transverse movement sliding frame in a vertically movable manner, and the longitudinal movement driving unit is connected with the longitudinal movement sliding frame through the longitudinal movement transmission part and controls the longitudinal movement sliding frame to move up and down.
9. The cell blanking device of claim 1, wherein: the outer blanking clamp plate can move in the radial direction of the winding needle under the control of the clamping cylinder so as to approach or leave the inner blanking clamp plate; and/or the inner blanking clamp plate is controlled by the contact pin driving unit to be inserted into or withdrawn from the battery cell along the axial direction of the battery cell.
10. The cell blanking device of claim 1, wherein: the battery cell also comprises a stretching driving unit, wherein the stretching driving unit is used for controlling an inner blanking clamping plate and an outer blanking clamping plate which are respectively positioned at two sides of the width direction of the battery cell and used for clamping the pole piece and the diaphragm to stretch the battery cell outwards.
CN202223194822.7U 2022-11-28 2022-11-28 Battery cell blanking device Active CN219123285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223194822.7U CN219123285U (en) 2022-11-28 2022-11-28 Battery cell blanking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223194822.7U CN219123285U (en) 2022-11-28 2022-11-28 Battery cell blanking device

Publications (1)

Publication Number Publication Date
CN219123285U true CN219123285U (en) 2023-06-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223194822.7U Active CN219123285U (en) 2022-11-28 2022-11-28 Battery cell blanking device

Country Status (1)

Country Link
CN (1) CN219123285U (en)

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