CN114024017A - Continuous reciprocating lamination mechanism and lamination method - Google Patents
Continuous reciprocating lamination mechanism and lamination method Download PDFInfo
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- CN114024017A CN114024017A CN202111523805.0A CN202111523805A CN114024017A CN 114024017 A CN114024017 A CN 114024017A CN 202111523805 A CN202111523805 A CN 202111523805A CN 114024017 A CN114024017 A CN 114024017A
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- 238000003475 lamination Methods 0.000 title claims abstract description 342
- 230000007246 mechanism Effects 0.000 title claims abstract description 205
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 228
- 230000033001 locomotion Effects 0.000 claims abstract description 43
- 238000010030 laminating Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 36
- 239000003990 capacitor Substances 0.000 description 10
- 239000007784 solid electrolyte Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- 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
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The invention discloses a continuous reciprocating movement lamination mechanism, which comprises: a lamination table; the belt material conveying mechanism is used for continuously conveying belt materials and enabling the belt materials to be folded back and forth on the laminating table; a sheet material conveying mechanism for conveying sheet-shaped sheet materials and stacking the sheet materials on the belt material in sequence after the belt material is folded each time; the folding positioning mechanism is used for controlling the positions of the two ends of the belt material to be folded back and forth; the belt material conveying mechanism comprises a lamination roller set and a folding driving mechanism; the lamination roller group comprises two lamination rollers for guiding strip materials; the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively and enabling the strip material to be folded back and forth on the lamination table. The invention also discloses a movable lamination method.
Description
Technical Field
The invention belongs to the technical field of manufacturing of batteries or capacitors, and particularly relates to a continuous reciprocating movement lamination mechanism and a lamination method.
Background
The chinese patent with publication number CN202067866U discloses a semi-automatic lamination machine of lithium cell, including diaphragm book, lamination platform, left magazine, right magazine and rack platform, the lamination platform is installed on the mesa of rack platform, left side magazine and right magazine with the lamination platform is central symmetry configuration, all place the lithium cell pole piece that remains the lamination in left side magazine and the right magazine, pending lithium cell pole piece passes through the sucking disc device and follows take out and the pressure equipment is in left side magazine or the right magazine the lamination bench, the diaphragm book sets up the top of rack platform will through the transmission of transmission deflector roll the diaphragm centre gripping and the pressure equipment of package on the diaphragm are between two adjacent lithium cell pole pieces, two adjacent lithium cell pole pieces are got from respectively in proper order left side magazine and right magazine. The existing lamination machine adopts a suction disc device to suck the lithium battery pole pieces onto the lamination table from the left and right material boxes in sequence, and the lithium battery pole pieces are separated by a diaphragm, so that a battery structure is formed.
Although the existing laminating machine can meet the requirement of battery production to a certain extent through a laminating mode, the following defects still exist:
1) the battery pole pieces need to be stored in corresponding material boxes in advance, so that continuous production cannot be realized, and the production efficiency is low;
2) the positioning device can only be suitable for the battery pole piece with smaller size, when the battery pole piece is larger, due to the characteristic of thinner thickness of the battery pole piece, the sucker can easily cause the defects of bending and even breaking of the battery pole piece when absorbing the large-size battery pole piece, and meanwhile, the positioning precision requirement required when the large-size battery pole piece is laminated is difficult to realize.
Disclosure of Invention
In view of the above, the present invention provides a continuous reciprocating lamination mechanism and a lamination method, which can achieve continuous lamination, and have better versatility and higher lamination efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides a continuous reciprocating lamination mechanism, which comprises:
a lamination table;
the belt material conveying mechanism is used for continuously conveying belt materials in a belt shape and enabling the belt materials to be folded back and forth on the laminating table;
a sheet material conveying mechanism for conveying sheet-shaped sheet materials and stacking the sheet materials on the belt material in sequence after the belt material is folded each time;
the folding positioning mechanism is used for controlling the positions of the two ends of the belt material to be folded back and forth;
the belt material conveying mechanism comprises a lamination roller set and a folding driving mechanism; the lamination roller group comprises two lamination rollers for guiding strip materials; the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively and enabling the strip material to be folded back and forth on the lamination table.
Furthermore, the folding positioning mechanism comprises a positioning rod, a positioning pressing needle or a positioning pressing block which are respectively positioned at the two ends of the belt material which folds back and forth.
The lamination pressing mechanism is used for pressing and fixing the uppermost sheet material on the corresponding belt material.
Further, the lamination pressing mechanism comprises a lamination pressing rod, a lamination pressing pin or a lamination pressing block which are respectively positioned at two ends of the sheet material.
Further, the belt material conveying mechanism further comprises a guide roller set, and the guide roller set comprises two guide rollers for guiding the belt material.
Further, still include area material buffer memory mechanism, area material buffer memory mechanism includes the fixed roller, the fixed roller with be equipped with between the guide roller set the movable roll and be used for the drive the movable roll removes in order to control the tensile tension mechanism of area material.
Further, the two sheet material conveying mechanisms are respectively positioned at two ends of the laminating table, which are vertical to the axis of the laminating roller, or at two sides of the laminating table, which are parallel to the axis of the laminating roller; or the sheet material conveying mechanism is arranged as one and is positioned on one side of the lamination table parallel to the axis of the lamination roller.
Further, the folding driving mechanism comprises a first movement driving mechanism and a second movement driving mechanism, the first movement driving mechanism is used for driving the lamination roller group and the lamination table to move relatively along a first direction parallel to the table top of the lamination table, and the second movement driving mechanism is used for driving the lamination roller group and the lamination table to move relatively along a second direction perpendicular to the table top of the lamination table.
Further, the first movement driving mechanism drives the lamination roller group and/or the lamination table to move in a first direction.
Further, the second movement driving mechanism includes a roller group movement driving mechanism and a lamination table movement driving mechanism for driving the lamination roller group and the lamination table to move in the second direction, respectively.
Further, the second movement driving mechanism is used for driving the lamination roller group to move along a second direction; the lamination driving mechanism is used for driving the sheet stock conveying mechanism to move along the second direction.
The invention also provides a continuous reciprocating lamination method, which is characterized by comprising the following steps: the method comprises the following steps:
1) enabling the lamination roller group to be located at the end part of the first end of the strip material which is folded back and forth, and pressing and fixing the strip material at the first end by using a folding and positioning mechanism;
2) sheet-shaped sheet materials are stacked on the belt materials by using a sheet material conveying mechanism;
3) the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively, so that the lamination roller group moves to the end position of a second end of the strip material which is folded back and forth relative to the lamination table, and the folding positioning mechanism is used for pressing and fixing the strip material at the second end;
4) sheet-shaped sheet materials are stacked on the belt materials by using a sheet material conveying mechanism;
5) the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively, so that the lamination roller group moves to the end position of the first end of the strip material which is folded back and forth relative to the lamination table, and the folding positioning mechanism is used for pressing and fixing the strip material at the first end;
6) and (5) circulating the step 2) to the step 5) until the lamination is finished.
Further, in the step 1), after the folding positioning mechanism is used for compressing and fixing the belt material at the first end, the lamination roller group and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller group and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
Further, in the step 2), after the sheet is stacked on the belt material, the sheet is pressed and fixed.
Further, in step 3), after the lamination roller group moves to the end position of the second end of the strip material to be folded back and forth relative to the lamination table, the lamination roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the lamination roller group and the table top of the lamination table is reduced, the strip material positioned at the uppermost layer is attached to the sheet material positioned below the lamination roller group, and then the strip material at the second end is pressed and fixed by the folding positioning mechanism.
Further, after the folding positioning mechanism is used for compressing and fixing the belt material at the second end, the lamination roller set and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller set and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
Further, in the step 4), after the sheet is stacked on the belt material, the sheet is pressed and fixed.
Further, in the step 5), after the lamination roller group moves to the end position of the first end where the strip material is folded back and forth relative to the lamination table, the lamination roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the lamination roller group and the table top of the lamination table is reduced, the strip material positioned at the uppermost layer is attached to the sheet material positioned below the lamination roller group, and then the strip material at the first end is pressed and fixed by the folding positioning mechanism.
Further, after the folding positioning mechanism is used for compressing and fixing the belt material at the first end, the lamination roller set and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller set and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
The invention has the beneficial effects that:
the continuous reciprocating lamination mechanism can meet the lamination production requirement of batteries or capacitors, and particularly can control the positions of a first end and a second end of the strip material in reciprocating folding by controlling the distance range of relative movement of the lamination roller set and the lamination table, namely the length between the first end and the second end of the strip material in reciprocating folding is controlled, so that the lamination requirement of pole pieces with different sizes is met, the continuous reciprocating lamination mechanism is particularly suitable for the lamination requirement of large-size pole pieces, and has better universality and higher lamination efficiency.
The belt material can be a diaphragm, the sheet materials can be a first pole piece and a second pole piece, and the first pole piece and the second pole piece which are in sheet shapes are sequentially overlapped on the diaphragm by using the sheet material conveying mechanism in the process of reciprocating folding of the diaphragm, so that the diaphragm is arranged between the adjacent first pole piece and the second pole piece, and a battery or capacitor structure is formed.
The belt material can also be a first pole piece, and a second pole piece in a sheet shape is sequentially overlapped on the diaphragm by using a sheet material conveying mechanism in the process of reciprocating folding the first pole piece; at this time, a diaphragm or a solid electrolyte layer can be compounded on each of the two sides of the first pole piece; or, a diaphragm or a solid electrolyte layer is respectively compounded on two sides of the second pole piece; or, a diaphragm or a solid electrolyte layer is compounded on one corresponding side of the first pole piece and the second pole piece, so that a diaphragm or a solid electrolyte layer is arranged between the first pole piece and the second pole piece which are adjacent after lamination, and a battery or capacitor structure is formed.
Of course, the belt material can also be a second pole piece, and the sheet material can be a first pole piece, and the principle is the same and will not be described again.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic structural view of an embodiment of a continuous reciprocating lamination mechanism of the present invention;
FIG. 2 is detail A of FIG. 1;
FIG. 3 is a schematic view of the lamination roller set at the first end with the strip secured in compression;
FIG. 4 is a schematic view of the structure after the sheet material is laminated on the web;
FIG. 5 is a schematic view of the first state of the lamination roller set as it moves toward the second end;
FIG. 6 is a schematic view of the second state of the lamination roller set as it moves toward the second end;
FIG. 7 is a schematic view of a third condition of the lamination roller set as it moves toward the second end;
FIG. 8 is a schematic view of the lamination roller set reduced from the lamination station to engage the web with the sheet;
FIG. 9 is a schematic view of the lamination roller set at the second end with the strip secured in compression;
FIG. 10 is a schematic view of the structure after laminating a sheet material on a web;
FIG. 11 is a schematic view of the construction of the first state of the lamination roller set as it moves toward the first end;
FIG. 12 is a structural view of the lamination roller set in a second condition as it moves toward the first end;
FIG. 13 is a structural view of a third condition of the lamination roller set as it moves toward the first end;
FIG. 14 is a schematic view of the lamination roller set reduced from the lamination station to engage the web with the sheet;
FIG. 15 is a schematic view of the lamination roller set at the first end with the strip secured in compression;
fig. 16 is a schematic view of a structure for increasing the spacing between the lamination roller set and the lamination table.
Description of reference numerals:
1-carrying materials; 2-sheet material;
10-a lamination station; 11-a lamination roller; 12-positioning a pressing block; 13-lamination briquetting; 14-a guide roll; 15-fixed roller; 16-a moving roll; and 17-a sheet material conveying mechanism.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in fig. 1, the embodiment of the continuous reciprocating lamination mechanism of the invention has a schematic structural diagram. The continuous reciprocating lamination mechanism of the embodiment comprises:
a lamination stage 10;
the belt material conveying mechanism is used for continuously conveying the belt material 1 in a belt shape and enabling the belt material 1 to be folded back and forth on the lamination table 10;
a sheet material conveying mechanism for conveying sheet-shaped sheet materials 2 and stacking the sheet materials 2 on the belt material 1 in sequence after the belt material 1 is folded each time;
and the folding positioning mechanism is used for controlling the positions of the two ends of the belt material 1 which are folded back and forth.
Specifically, the belt material conveying mechanism of the embodiment comprises a lamination roller group and a folding driving mechanism. The lamination roller set of the present embodiment comprises two lamination rollers 11 for guiding the strip 1. The folding drive mechanism of the present embodiment is used to drive the relative movement between the lamination roller set and the lamination station 10 and to fold the strip 1 back and forth on the lamination station 10.
Further, the folding positioning mechanism comprises a positioning rod, a positioning pressing pin or a positioning pressing block which are respectively positioned at the two ends of the belt material 1 folded back and forth. The folding positioning mechanism of the embodiment comprises positioning press blocks 12 respectively positioned at two end positions of the belt material 1 which is folded back and forth, and the positioning press blocks 12 are arranged at the end positions of the belt material 1 which is folded, so that the belt material 1 can be positioned and folded, and particularly, the positioning press blocks 12 are pressed on the belt material 1 positioned at the uppermost layer. Of course, the stacking and positioning mechanism can achieve the same technical purpose by adopting a positioning rod and a positioning needle pressing mode, and the description is not repeated.
Further, the continuous reciprocating lamination mechanism of the embodiment further comprises a lamination pressing mechanism, specifically, the lamination pressing mechanism is used for pressing and fixing the uppermost sheet 2 on the corresponding belt material 1, so as to prevent the sheet 2 from being displaced and dislocated in the process of folding the belt material 1 back and forth. The lamination pressing mechanism comprises a lamination pressing rod, a lamination pressing pin or a lamination pressing block which are respectively positioned at two ends of the sheet material 2. The lamination pressing mechanism of the present embodiment includes lamination press blocks 13 respectively located at both ends of the sheet 2.
Further, area material conveying mechanism still includes the guide roller set, and the guide roller set is including two guide rollers 14 that are used for leading area material 1, leads area material 1 through setting up two guide rollers 14, drives area material 1 reciprocating motion's in-process at the lamination roller set, all can realize the direction purpose to area material 1. The continuous reciprocating movement lamination mechanism of this embodiment still includes area material buffer memory mechanism, and area material buffer memory mechanism includes fixed roll 15, is equipped with between fixed roll 15 and the guide roller set and moves roller 16 and be used for driving the tension mechanism that moves in order to control area material 1 tension. The tension mechanism is arranged to drive the movable roller 16 to move, so that the tension of the belt material 1 can be kept stable, and the belt material 1 with a certain length can be stored among the fixed roller 15, the movable roller 16 and the guide roller group, so that the requirement of the lamination of the belt material 1 is met, and meanwhile, the buffer function is achieved. Specifically, the tension mechanism can be realized by adopting various existing tension stabilizing mechanisms, and the description is not repeated.
Further, two sheet material conveying mechanisms 17 are arranged and are respectively positioned at two ends of the laminating table 10, which are vertical to the axis of the laminating roller 11, or at two sides of the laminating table 10, which are parallel to the axis of the laminating roller 11; or the sheet conveying mechanism 17 is provided as one and located on one side of the lamination table 10 in parallel with the axis of the lamination roller 11. Specifically, if there are two types of sheet materials, for example, when the sheet materials are the first and second sheet materials, the sheet material conveying mechanism 17 needs to be two; if the sheet material is only one, for example, when the sheet material is the first or second pole piece, the sheet material conveying mechanism 17 can be only one; of course, if the sheet material is only one, for example, if the sheet material is the first or second sheet material, the sheet material conveying mechanism 17 may be two. The two sheet conveying mechanisms 17 of this embodiment are provided at both ends of the laminating table 10 perpendicular to the axis of the laminating roller 11, and the two sheet conveying mechanisms 17 sequentially laminate the sheet-like sheets 2 on the uppermost tape member 1. Specifically, the sheet material conveying mechanism 17 may be implemented by using various existing sheet material conveying mechanisms 17, such as a conveying belt mechanism, a conveying roller mechanism, a manipulator device, and the like, which will not be described in detail.
Further, the folding drive mechanism includes a first movement drive mechanism for driving relative movement between the lamination roller set and the lamination table 10 in a first direction parallel to the table top of the lamination table 10 and a second movement drive mechanism for driving relative movement between the lamination roller set and the lamination table 10 in a second direction perpendicular to the table top of the lamination table. The first direction in the embodiment described is perpendicular to the axis of the lamination roller 11. The first moving driving mechanism and the second moving driving mechanism can be realized by adopting various existing modes, such as a threaded screw rod mechanism, a gear rack mechanism and the like, and description is not repeated.
Further, the first movement driving mechanism drives the lamination roller group and/or the lamination table to move in the first direction. That is, the first movement driving mechanism may drive the lamination roller group to move in the first direction, may drive the lamination stage to move in the first direction, and may drive the lamination roller group and the lamination stage to move in the first direction at the same time, as long as it is satisfied that the lamination roller group can move back and forth between the first end and the second end of the web 1 folded back and forth with respect to the lamination stage 10.
Further, the second movement driving mechanism includes a roller group movement driving mechanism and a lamination table movement driving mechanism for driving the lamination roller group and the lamination table respectively to move in the second direction, that is, the lamination roller group can be driven separately by the roller group movement driving mechanism to move in the second direction relative to the lamination table 10, so that the distance between the strip 1 and the top strip 1 which is already folded during the folding process can be adjusted, and the interference between the lamination roller group and the top strip 1 which is already folded can be avoided. The lamination stage 10 is individually controlled to move in the second direction by the lamination stage movement driving mechanism, so that when the lamination of the web 1 and the sheet 2 is completed, the lamination stage 10 is controlled to move to have a distance between the lamination stage 10 and the sheet conveying mechanism 17 in a direction perpendicular to the table surface of the lamination stage 10, the distance of each step movement of the lamination stage 10 is equal to the thickness of at least one lamination unit, and the "thickness of one lamination unit" herein refers to the total thickness of the laminated web 1 and the laminated sheet 2. Specifically, the roller group movement driving mechanism and the lamination table movement driving mechanism can be realized by adopting various existing driving mechanisms, such as a threaded screw rod mechanism, a gear and rack mechanism and the like, and the description is not repeated. Of course, in some embodiments, the second moving driving mechanism is used for driving the lamination roller group to move along the second direction, and a lamination driving mechanism for driving the sheet conveying mechanism 17 to move along the second direction may also be provided, i.e. the distance between the sheet conveying mechanism 17 and the lamination table 10 can be adjusted by driving the sheet conveying mechanism 17 to move relative to the lamination table 10, so as to meet the lamination requirement of the sheet material 2.
The continuous reciprocating lamination mechanism of the embodiment continuously conveys the strip material 1 by arranging the strip material conveying mechanism, folds the strip material 1 on the lamination table 10 back and forth, so that the purpose of continuous lamination can be realized, and the flaky sheet materials 2 are sequentially stacked on the belt material 1, so that a structure of a battery or a capacitor is formed between the adjacent belt material 1 and the sheet materials 2, namely, the continuous reciprocating lamination mechanism of the embodiment can meet the lamination production requirement of a battery or a capacitor, and particularly, by controlling the distance range of relative movement between the lamination roller group and the lamination table, the positions of the first end and the second end of the strip material which is folded back and forth can be controlled, namely the length between the first end and the second end of the strip material which is folded back and forth is controlled, the lamination requirements of pole pieces with different sizes are met, the lamination device is particularly suitable for the lamination requirements of pole pieces with large sizes, the universality is better, and the lamination efficiency is higher.
The strip material of the embodiment can be a diaphragm, the sheet materials can be a first pole piece and a second pole piece, and in the process of folding the diaphragm back and forth, the first pole piece and the second pole piece which are in sheet shapes are sequentially overlapped on the diaphragm by using the sheet material conveying mechanism, so that the diaphragm is arranged between the adjacent first pole piece and the second pole piece, and a battery or capacitor structure is formed.
The belt material of the embodiment can also be a first pole piece, and a second pole piece in a sheet shape is sequentially overlapped on the diaphragm by using a sheet material conveying mechanism in the process of reciprocating folding the first pole piece; at this time, a diaphragm or a solid electrolyte layer can be compounded on each of the two sides of the first pole piece; or, a diaphragm or a solid electrolyte layer is respectively compounded on two sides of the second pole piece; or, the diaphragm or the solid electrolyte layer is compounded on one corresponding side of the first pole piece and the second pole piece, so that a diaphragm or a solid electrolyte layer is arranged between the adjacent first pole piece and the second pole piece after lamination, and a battery or capacitor structure is formed.
Of course, the belt material can also be a second pole piece, and the sheet material can be a first pole piece, and the principle is the same and will not be described again.
Specifically, when the battery is produced, the first pole piece can be the positive pole of the battery, and the second pole piece can be the negative pole of the battery; of course, the first pole piece may be a battery negative electrode, and the second pole piece may be a battery positive electrode. When the capacitor is produced, the first pole piece and the second pole piece are both capacitor electrodes.
The following describes in detail a specific embodiment of the moving lamination method of the present invention in conjunction with the above-described continuous reciprocating lamination mechanism.
The continuous reciprocating lamination moving method comprises the following steps:
1) the lamination roller set is positioned at the end position of the first end of the strip 1 to be folded back and forth, and the strip 1 at the first end is pressed and fixed by the folding and positioning mechanism, as shown in fig. 3. Specifically, after the strip at the first end is pressed and fixed by the folding and positioning mechanism, the lamination roller set and the lamination table 10 are driven to move relatively along the second direction for a set distance, so that the distance between the lamination roller set and the table top of the lamination table 10 is increased, as shown in fig. 4. The relative movement between the lamination table 20 and the sheet conveying mechanism 17 is driven in the second direction to increase the interval between the lamination table 10 and the sheet conveying mechanism 17 by a distance of at least the thickness of one lamination unit, which is equal to the total thickness of the laminated one layer of the tape material 1 and the laminated one layer of the sheet material 2.
2) Sheet-like sheets 2 are stacked on the belt material 1 by the sheet conveying mechanism 17, as shown in fig. 4. Specifically, after the sheet 2 is stacked on the web 1, the sheet is pressed and fixed by a lamination pressing mechanism.
When the belt material 1 is a diaphragm, the first pole piece or the second pole piece which is in a sheet shape can be stacked on the belt material 1;
when the belt material 1 is a first pole piece, the second pole piece which is in a sheet shape is overlapped on the first pole piece;
when the strip 1 is a second pole piece, the first pole piece in the shape of a sheet is stacked on the first pole piece.
3) The folding drive mechanism is used for driving the lamination roller group to move relative to the lamination table 10, so that the lamination roller group moves relative to the lamination table 10 to the position of the end of the second end of the strip material 1 to be folded back and forth, and the folding positioning mechanism is used for pressing and fixing the strip material 1 at the second end, as shown in figures 5-8.
Specifically, after the lamination roller group moves to the end position of the second end of the strip material 1 to be folded back and forth relative to the lamination table 10, the lamination roller group and the lamination table 10 are driven to move relatively in the second direction by a set distance, the distance between the lamination roller group and the table surface of the lamination table 10 is reduced, the strip material 1 on the uppermost layer is attached to the sheet material 2 on the lower layer, and then the strip material 1 on the second end is pressed and fixed by the folding positioning mechanism, as shown in fig. 8-9.
After the second end of the strip material 1 is pressed and fixed by the folding and positioning mechanism, the lamination roller group and the lamination table 10 are driven to move relatively along the second direction for a set distance, and the distance between the lamination roller group and the table top of the lamination table 10 is increased, as shown in fig. 10. The relative movement between the lamination table 10 and the sheet material conveying mechanism 17 is driven in the second direction, so that the distance between the lamination table 10 and the sheet material conveying mechanism 17 is increased by the distance of the thickness of at least one lamination unit.
4) Sheet-like sheets 2 are stacked on the belt material 1 by a sheet conveying mechanism 17. After the sheet 2 is stacked on the web 1, the sheet 2 is pressed and fixed by the lamination pressing mechanism as shown in fig. 10.
When the strip 1 is a diaphragm, if the first pole piece is stacked on the diaphragm in the step 2), the second pole piece is stacked on the diaphragm in the step 4); if the second pole piece is stacked on the diaphragm in the step 2), the first pole piece is stacked on the diaphragm in the step 4);
when the belt material is a first pole piece, the second pole piece which is in a sheet shape is overlapped on the first pole piece;
when the strip material is a second pole piece, the first pole piece which is in a sheet shape is overlapped on the first pole piece.
5) The folding drive mechanism is used for driving the relative movement between the lamination roller group and the lamination table, so that the lamination roller group moves to the end position of the first end of the strip material to be folded back and forth relative to the lamination table, and the folding positioning mechanism is used for pressing and fixing the strip material at the first end, as shown in figures 11-14.
After the lamination roller group moves to the end position of the first end of the strip material 1 which is folded back and forth relative to the lamination table 10, the lamination roller group and the lamination table 10 are driven to move relatively along the second direction for a set distance, the distance between the lamination roller group and the table surface of the lamination table 10 is reduced, the strip material 1 at the uppermost layer is attached to the sheet material 2 at the lower part of the lamination roller group, and then the strip material 1 at the first end is pressed and fixed by the folding positioning mechanism, as shown in fig. 15.
After the strip material 1 at the first end is pressed and fixed by the folding positioning mechanism, the lamination roller group and the lamination table 10 are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller group and the table top of the lamination table 10 is increased, as shown in fig. 16; the relative movement between the lamination table 10 and the sheet material conveying mechanism 17 is driven in the second direction, so that the distance between the lamination table 10 and the sheet material conveying mechanism 17 is increased by the distance of the thickness of at least one lamination unit.
6) And (5) circulating the step 2) to the step 5) until the lamination is finished.
The "thickness of one lamination unit" herein refers to the total thickness of one layer of tape material 1 and one layer of sheet material 2 stacked together.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (19)
1. A continuous reciprocating lamination mechanism is characterized in that: the method comprises the following steps:
a lamination table;
the belt material conveying mechanism is used for continuously conveying belt materials in a belt shape and enabling the belt materials to be folded back and forth on the laminating table;
a sheet material conveying mechanism for conveying sheet-shaped sheet materials and stacking the sheet materials on the belt material in sequence after the belt material is folded each time;
the folding positioning mechanism is used for controlling the positions of the two ends of the belt material to be folded back and forth;
the belt material conveying mechanism comprises a lamination roller set and a folding driving mechanism; the lamination roller group comprises two lamination rollers for guiding strip materials; the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively and enabling the strip material to be folded back and forth on the lamination table.
2. The continuous reciprocal moving lamination mechanism of claim 1, wherein: the folding positioning mechanism comprises positioning rods, positioning press pins or positioning press blocks which are respectively positioned at the two ends of the belt material which is folded back and forth.
3. The continuous reciprocal moving lamination mechanism of claim 1, wherein: the lamination pressing mechanism is used for pressing and fixing the uppermost sheet material on the corresponding belt material.
4. The continuous reciprocal moving lamination mechanism of claim 3, wherein: the lamination pressing mechanism comprises a lamination pressing rod, a lamination pressing pin or a lamination pressing block which are respectively positioned at two ends of the sheet stock.
5. The continuous reciprocal moving lamination mechanism of claim 1, wherein: the belt material conveying mechanism further comprises a guide roller set, and the guide roller set comprises two guide rollers for guiding the belt material.
6. The continuous reciprocal moving lamination mechanism of claim 5, wherein: still include area material buffer memory mechanism, area material buffer memory mechanism includes the fixed roll, the fixed roll with be equipped with between the guide roller set the movable roll with be used for the drive the movable roll removes in order to control the tensile tension mechanism of area material.
7. The continuous reciprocal moving lamination mechanism of claim 1, wherein: the two sheet material conveying mechanisms are respectively positioned at two ends of the laminating table perpendicular to the axis of the laminating roller or at two sides of the laminating table parallel to the axis of the laminating roller; or the sheet material conveying mechanism is arranged as one and is positioned on one side of the lamination table parallel to the axis of the lamination roller.
8. A continuous reciprocating lamination mechanism according to any one of claims 1 to 7, wherein: the folding driving mechanism comprises a first movement driving mechanism and a second movement driving mechanism, wherein the first movement driving mechanism is used for driving the lamination roller group and the lamination table to move relatively along a first direction parallel to the table top of the lamination table, and the second movement driving mechanism is used for driving the lamination roller group and the lamination table to move relatively along a second direction perpendicular to the table top of the lamination table.
9. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the first movement driving mechanism drives the lamination roller group and/or the lamination table to move along a first direction.
10. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the second movement driving mechanism comprises a roller group movement driving mechanism and a lamination table movement driving mechanism which are used for respectively driving the lamination roller group and the lamination table to move along a second direction.
11. The continuous reciprocal moving lamination mechanism of claim 8, wherein: the second movement driving mechanism is used for driving the lamination roller group to move along a second direction; the lamination driving mechanism is used for driving the sheet stock conveying mechanism to move along the second direction.
12. A method of continuously reciprocating laminations, characterized by: the method comprises the following steps:
1) enabling the lamination roller group to be located at the end part of the first end of the strip material which is folded back and forth, and pressing and fixing the strip material at the first end by using a folding and positioning mechanism;
2) sheet-shaped sheet materials are stacked on the belt materials by using a sheet material conveying mechanism;
3) the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively, so that the lamination roller group moves to the end position of a second end of the strip material which is folded back and forth relative to the lamination table, and the folding positioning mechanism is used for pressing and fixing the strip material at the second end;
4) sheet-shaped sheet materials are stacked on the belt materials by using a sheet material conveying mechanism;
5) the folding driving mechanism is used for driving the lamination roller group and the lamination table to move relatively, so that the lamination roller group moves to the end position of the first end of the strip material which is folded back and forth relative to the lamination table, and the folding positioning mechanism is used for pressing and fixing the strip material at the first end;
6) and (5) circulating the step 2) to the step 5) until the lamination is finished.
13. The continuous reciprocal lamination process of claim 12, wherein: in the step 1), after the folding positioning mechanism is used for compressing and fixing the belt material at the first end, the lamination roller group and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller group and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
14. The continuous reciprocal lamination process of claim 12, wherein: and in the step 2), after the sheet materials are stacked on the belt materials, the sheet materials are pressed and fixed.
15. The continuous reciprocal lamination process of claim 12, wherein: in the step 3), after the lamination roller group moves to the end position of the second end of the strip material to be folded back and forth relative to the lamination table, the lamination roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the lamination roller group and the table top of the lamination table is reduced, the strip material positioned at the uppermost layer is attached to the sheet material positioned below the lamination roller group, and then the strip material at the second end is pressed and fixed by using the folding positioning mechanism.
16. The continuous reciprocal lamination process of claim 15, wherein: after the folding positioning mechanism is used for compressing and fixing the belt material at the second end, the lamination roller set and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller set and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
17. The continuous reciprocal lamination process of claim 12, wherein: and in the step 4), after the sheet materials are stacked on the belt materials, the sheet materials are pressed and fixed.
18. The continuous reciprocal lamination process of claim 12, wherein: in the step 5), after the lamination roller group moves to the end position of the first end of the strip material which is folded back and forth relative to the lamination table, the lamination roller group and the lamination table are driven to move relatively along the second direction for a set distance, the distance between the lamination roller group and the table surface of the lamination table is reduced, the strip material positioned at the uppermost layer is attached to the sheet material positioned below the lamination roller group, and then the strip material at the first end is pressed and fixed by using the folding positioning mechanism.
19. The continuous reciprocal lamination process of claim 18, wherein: after the folding positioning mechanism is used for compressing and fixing the belt material at the first end, the lamination roller set and the lamination table are driven to relatively move for a set distance along the second direction, and the distance between the lamination roller set and the table top of the lamination table is increased; and driving the lamination table and the sheet material conveying mechanism to relatively move along the second direction, so that the distance between the lamination table and the sheet material conveying mechanism is increased by the distance of the thickness of at least one lamination unit.
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| CN202111523805.0A CN114024017A (en) | 2021-12-14 | 2021-12-14 | Continuous reciprocating lamination mechanism and lamination method |
| CN202210098449.0A CN116264314A (en) | 2021-12-14 | 2022-01-27 | Folding mechanism, folding method, lamination mechanism and lamination method capable of continuously and reciprocally moving |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914272A (en) * | 2023-09-12 | 2023-10-20 | 宁德时代新能源科技股份有限公司 | Pole piece folding control method and device, pole piece folding device and battery production system |
| CN117352858A (en) * | 2022-06-27 | 2024-01-05 | 比亚迪股份有限公司 | Lamination device and lamination method of lamination device |
| CN117673427A (en) * | 2022-08-26 | 2024-03-08 | 比亚迪股份有限公司 | Battery cell preparation system, battery cell preparation method, laminated battery cell and battery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118136911A (en) * | 2023-12-22 | 2024-06-04 | 三一技术装备有限公司 | Sheet-making device, lamination device and battery production line |
-
2021
- 2021-12-14 CN CN202111523805.0A patent/CN114024017A/en active Pending
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2022
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117352858A (en) * | 2022-06-27 | 2024-01-05 | 比亚迪股份有限公司 | Lamination device and lamination method of lamination device |
| CN117352858B (en) * | 2022-06-27 | 2024-09-10 | 比亚迪股份有限公司 | Lamination device and lamination method of lamination device |
| CN117673427A (en) * | 2022-08-26 | 2024-03-08 | 比亚迪股份有限公司 | Battery cell preparation system, battery cell preparation method, laminated battery cell and battery |
| CN116914272A (en) * | 2023-09-12 | 2023-10-20 | 宁德时代新能源科技股份有限公司 | Pole piece folding control method and device, pole piece folding device and battery production system |
| CN116914272B (en) * | 2023-09-12 | 2024-02-06 | 宁德时代新能源科技股份有限公司 | Pole piece folding control method and device, pole piece folding device and battery production system |
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| CN116264314A (en) | 2023-06-16 |
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