CN110534815B - Lamination machine - Google Patents
Lamination machine Download PDFInfo
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- CN110534815B CN110534815B CN201910853925.3A CN201910853925A CN110534815B CN 110534815 B CN110534815 B CN 110534815B CN 201910853925 A CN201910853925 A CN 201910853925A CN 110534815 B CN110534815 B CN 110534815B
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- China
- Prior art keywords
- composite unit
- lamination
- working surface
- composite
- lamination table
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- 238000003475 lamination Methods 0.000 title claims abstract description 194
- 239000002131 composite material Substances 0.000 claims abstract description 225
- 239000000463 material Substances 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 60
- 210000000078 claw Anatomy 0.000 claims description 26
- 238000001179 sorption measurement Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 22
- 239000002699 waste material Substances 0.000 claims description 13
- 150000001875 compounds Chemical group 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009823 thermal lamination Methods 0.000 description 1
Classifications
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
Abstract
The application discloses lamination machine includes: a rotating body capable of rotating around a rotating shaft of the rotating body by a preset angle according to a preset rotating direction, and a feeding position and a lamination position which are arranged at the periphery of the circumference of the rotating body; the rotating body includes: at least two working surfaces which are arranged around the peripheral outer wall of the device, and a fixing mechanism positioned on each working surface; the rotating body rotates around the rotating shaft along a fixed rotating direction so as to switch the working surface between a feeding position and a lamination position; the working surface is used for receiving the composite unit material belt at a feeding position, and the feeding position is provided with a cutting mechanism for cutting the composite unit material belt to form a composite unit; the fixing mechanism is used for fixing the composite unit material belt and the composite unit and releasing the composite unit; the lamination position is provided with a lamination table positioned below the rotating body; the lamination bench is used for receiving the composite unit to form a lamination cell. The working face is enclosed and established on the circumference outer wall of rotator, practices thrift equipment installation space, and then practices thrift the production space, simultaneously, for the production mode that current piles up, improves production efficiency.
Description
Technical Field
The application relates to the field of lithium battery production and manufacturing equipment, in particular to a lamination machine.
Background
In the production process of the lithium ion battery, the traditional thermal lamination mode is that a positive pole piece material belt, a negative pole piece material belt and a diaphragm material belt are rolled together through a thermal compression roller to form a composite unit material belt, then a cutting mechanism cuts the composite unit material belt to form composite units, the composite units are sequentially placed on a conveyor belt, the composite units are grabbed on the conveyor belt through a mechanical arm and then placed on a lamination table, and a pressing needle on the lamination table is used for pressing the composite units to form a lamination battery core from the lamination of the composite units to the preset layer number. In the mode, the manufactured composite units are sequentially transferred to the lamination table through the mechanical arm to be stacked, the connection time of each process is long, and the production efficiency is low. Meanwhile, laminated composite units are not uniformly compacted, dislocation is easy to occur, and when a finished battery core is assembled subsequently, the battery core is too loose, so that the yield of a subsequent finished battery is greatly influenced.
Disclosure of Invention
The application provides a lamination machine to improve the production efficiency of finished product lamination electric core.
The application provides a lamination machine, include:
a rotary body rotatable around its own rotation axis in a fixed rotation direction, and a material inlet position and a lamination position provided at the periphery of the rotary body in the fixed rotation direction;
the rotating body includes: at least two working surfaces which are arranged on the peripheral outer wall of the machine tool in a surrounding manner, and a fixing mechanism positioned on each working surface; the rotating body rotates around the rotating shaft along a fixed rotating direction so as to switch the working surface between a material inlet position and a lamination position; the working surface is used for receiving the composite unit material belt at a feeding position, the feeding position is provided with a cutting mechanism for cutting the composite unit material belt to form a composite unit, and the fixing mechanism is used for fixing the composite unit material belt and the composite unit; the lamination position is provided with a lamination table positioned below the rotating body, and the fixing mechanism is also used for releasing the composite unit to the lamination table; the lamination table is used for receiving the composite units and laminating the received composite units to a preset layer number to form a lamination cell.
The lamination machine is characterized in that a plane of a composite unit on a working surface above the lamination table is parallel to the plane of the lamination table, and a composite unit detection system is further arranged at the lamination position and used for detecting whether deviation of offset between the composite unit on the working surface above the lamination table and the edge of the composite unit released to the lamination table in the horizontal direction is within a preset range; the lamination table further comprises a lamination table horizontal driving assembly for driving the lamination table to reciprocate along the horizontal direction, and the lamination table horizontal driving assembly drives the lamination table to move along the opposite direction of the offset in the horizontal direction so as to adjust the offset between the edge of the composite unit switched onto the working surface above the lamination table and the edge of the composite unit released onto the lamination table to be within a preset range.
The lamination machine is characterized in that a battery core unloading mechanism is further arranged at the lamination position and used for unloading the lamination battery core; the lamination table further comprises a lamination table vertical driving assembly used for driving the lamination table to reciprocate along the vertical direction, and the lamination table vertical driving assembly drives the lamination table to move downwards in the vertical direction to avoid the battery core unloading mechanism to unload materials, or drives the lamination table to move upwards in the vertical direction to receive materials.
The lamination machine is characterized in that a composite unit material belt detection system and a composite unit material belt adjusting mechanism are further arranged at the material inlet position, and the composite unit material belt detection system is used for detecting whether deviation between the edge of the composite unit material belt received on the working surface and the edge of the working surface is within a preset range; the composite unit material belt adjusting mechanism is used for correcting the composite unit material belt along the opposite direction of the composite unit material belt deviation so as to enable the deviation between the edge of the composite unit material belt and the edge of the working surface to be in a preset range.
The lamination machine, wherein, fixed establishment includes: a compacting assembly for compacting or releasing the composite unit strip prior to forming the composite unit and for releasing the composite unit after forming the composite unit; the adsorption assembly is used for adsorbing or releasing the composite unit after the composite unit is formed.
The lamination machine, wherein, compress tightly the subassembly and include: the pressing claws are arranged on two opposite sides of the working surface along the width direction of the composite unit material belt, the first pressing claw driving unit is used for driving the pressing claws to move towards or away from the working surface, and the second pressing claw driving unit is used for driving the pressing claws which move towards or away from the working surface to rotate in the horizontal plane; the adsorption assembly includes: the plurality of adsorption holes are arranged on each working surface and are externally connected with a negative pressure device for generating vacuum adsorption force; after the composite unit is formed, the negative pressure device works to enable the plurality of adsorption holes to generate vacuum adsorption force so as to adsorb the composite unit; when the composite unit which is qualified in detection of the brothers rotates above the lamination table along with any working surface and is opposite to the lamination table, the negative pressure device breaks vacuum so that the plurality of adsorption holes release the composite unit.
The lamination machine is characterized in that the lamination table is further provided with a pressing needle assembly used for pressing and releasing the composite unit on the lamination table or avoiding the composite unit to be released on the lamination table.
The lamination machine, wherein, the pressure needle subassembly includes: the pressing needle is used for driving the pressing needle to reciprocate along the direction perpendicular to the lamination table so as to press the first pressing needle driving unit of the compound unit, and driving the pressing needle to reciprocate along the direction perpendicular to the axial direction of the pressing needle so as to avoid the second pressing needle driving unit of the compound unit.
The lamination machine comprises a waste sheet detection system and a waste sheet removing mechanism, wherein the waste sheet detection system is arranged on the periphery of the rotating body in a surrounding mode, the waste sheet removing mechanism is used for removing waste sheets, the waste sheet detection system is used for detecting whether a composite unit is qualified or not, and the waste sheet removing mechanism is used for adsorbing and transferring unqualified composite units through a vacuum adsorption effect.
The lamination machine, wherein, the mechanism is rejected to waste sheet includes: the vacuum chuck driving assembly is used for driving the vacuum chuck to move towards or away from the unqualified composite unit; the vacuum chuck driving assembly drives the vacuum chuck to move towards the unqualified composite unit, and the vacuum chuck is used for generating vacuum negative pressure to adsorb the unqualified composite unit; the vacuum chuck driving assembly drives the vacuum chuck to move away from the unqualified composite unit, and the vacuum chuck breaks vacuum to release the unqualified composite unit.
The beneficial effects of the invention are as follows:
the application provides a lamination machine, include: a rotary body rotatable around its own rotation axis in a fixed rotation direction, and a material inlet position and a lamination position provided at the periphery of the rotary body in the fixed rotation direction; the rotating body includes: at least two working surfaces which are arranged on the peripheral outer wall of the machine tool in a surrounding manner, and a fixing mechanism positioned on each working surface; the rotating body rotates around the rotating shaft along a fixed rotating direction so as to switch the working surface between a material inlet position and a lamination position; the working surface is used for receiving the composite unit material belt at a feeding position, and the feeding position is provided with a cutting mechanism for cutting the composite unit material belt to form a composite unit; the fixing mechanism is used for fixing the composite unit material belt and the composite unit; the lamination position is provided with a lamination table positioned below the rotating body, and the fixing mechanism is also used for releasing the composite unit to the lamination table; the lamination table is used for receiving the composite units and laminating the received composite units to a preset layer number to form a lamination cell. A plurality of working faces enclose and establish on the circumference outer wall of rotator, have practiced thrift the installation space of equipment, and then practice thrift production space, simultaneously, for the production mode that current piles up, through the mode of switching station for compound unit that forms on the working face releases to the lamination bench, need not the manipulator and shifts compound unit, is showing improvement production efficiency.
Drawings
FIG. 1 is an isometric view of a lamination machine provided herein;
fig. 2 is a front view of the lamination machine provided in the present application;
fig. 3 is a schematic diagram illustrating a first operation of rotating a rotating body in the lamination machine provided in the present application;
fig. 4 is a second schematic diagram of the rotation action of the rotating body in the lamination machine provided in the present application;
fig. 5 is a schematic diagram of a third action of rotating a rotating body in the lamination machine provided by the application;
fig. 6 is a schematic diagram of a rotation motion of a rotating body in the lamination machine provided by the application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments.
Referring to fig. 1 and 2, the lamination machine provided in this embodiment mainly includes: the composite unit material belt manufacturing device 100 comprises a rotating body 10, a material inlet position A and a lamination position B which are arranged around the periphery of the rotating body 10.
The composite unit tape producing device 100 is used for producing a composite unit tape 101, and conveying the produced composite unit tape 101 onto the working surface 12 of the rotating body 10 at the inlet level a. As shown in fig. 2, the composite unit tape producing apparatus 100 includes: a pair of heated rollers 103, a plurality of rollers 104 and a deflection correction system 105. The composite unit tape 101 includes: the separator comprises two layers of laminated separator strips, a positive electrode plate strip or a negative electrode plate strip arranged between the two layers of separator strips, and a negative electrode plate strip or a positive electrode plate strip arranged on the upper surface of the uppermost layer of separator strip or a negative electrode plate strip or a positive electrode plate strip arranged on the lower surface of the lowermost layer of separator strip. The pair of hot-pressing rollers 103 are used for compounding two layers of laminated diaphragm belts, a positive electrode plate belt or a negative electrode plate belt arranged between the two layers of diaphragm belts, and a negative electrode plate belt or a positive electrode plate belt arranged on the upper surface of the uppermost layer of diaphragm belts, or a negative electrode plate belt or a positive electrode plate belt arranged on the lower surface of the lowermost layer of diaphragm belts into a whole in a hot-rolling mode, so that a composite unit belt 101 is obtained, the composite unit belt 101 is penetrated on a plurality of passing rods 104 to convey the composite unit belt 101, sufficient tension is provided for the conveyed composite unit belt 101, and a correction system 105 is used for correcting correction of the composite unit belt 101 which generates offset in the conveying process, so that conveying consistency is maintained.
The rotating body 10 has a rotating shaft 11 in the axial direction, the rotating body 10 is rotatable about its rotating shaft 11 in a fixed rotation direction, the fixed rotation direction of the rotating body 10 is determined according to the conveying direction of the composite unit tape 101 conveyed by the composite unit tape producing device 100, and as shown in fig. 2, the conveying direction of the composite unit tape 101 is the left-right direction, and the fixed rotation direction is the clockwise direction.
The rotating body 10 includes: at least two working surfaces 12 provided around the outer peripheral wall of the rotary body 10, and fixing means provided on each working surface 12. The rotary body 10 rotates about its own axis of rotation 11 in a fixed rotational direction, switching the respective working surfaces 12 between the insertion position a and the lamination position B. At the entry level a, the work surface 12 receives the composite unit tape 101 produced and output from the composite unit tape producing apparatus 100, and a cutting mechanism 20 is further provided at the entry level a, and the cutting mechanism 20 is configured to cut the composite unit tape 101 received on the work surface 12 at the entry level a to form a composite unit 102. At the feeding level a, the fixing mechanism on the working surface 12 is used for fixing the composite unit tape 101 received on the working surface 12 thereat, and fixing the formed composite unit 102 after the cutting mechanism 20 cuts the composite unit tape 101. At the lamination position B, there is provided a lamination stage 30 located below the rotary body 10, and after the rotary body 10 switches the working face 12 formed with the complex unit 102 from the feed position a to the lamination position B in a fixed rotation direction about its own rotation axis, the aforementioned fixing mechanism releases the complex unit 102 onto the lamination stage 30, and the lamination stage 30 serves to receive the released complex unit 102. After the rotating body rotates for multiple times, the formed composite units 102 are sequentially released to the lamination table 30, namely, the next released composite unit 102 is laminated to the last released composite unit 102, so that the sequentially formed composite units are stacked until the lamination stack is up to the preset layer number required by the lamination battery cell, and the lamination battery cell is formed. In this way, the transfer mode of the composite unit is realized only through the rotation of the rotary body 10 and the release of the fixing mechanism, so that not only is the installation space of equipment saved, but also the transfer process is simplified, the transfer time is saved, and the production efficiency of the laminated battery cell is improved.
As above, the fixing mechanism includes: a compacting assembly and an adsorbing assembly, wherein the compacting assembly is used for compacting or avoiding the composite unit material tape 101 before forming the composite unit 102 and for releasing the composite unit after forming the composite unit. The adsorption assembly is used to adsorb or release the complex unit 102 after forming the complex unit, i.e., adsorb the complex unit released by the compression assembly.
The compression assembly includes: the two pressing claws 13, the first pressing claw driving unit and the second pressing claw driving unit are respectively arranged on each pressing claw 13, the two pressing claws 13 are arranged on two opposite sides of the working surface 12 along the width direction of the composite unit material belt 101, the first pressing claw driving unit is used for driving the pressing claws 13 to move towards the direction close to or away from the working surface 12, and the second pressing claw driving unit is used for driving the pressing claws 13 after moving towards the direction away from the working surface 12 to rotate in the horizontal plane. The adsorption assembly includes: and a plurality of suction holes 14 provided on each working surface 12, wherein the suction holes 14 are externally connected with a negative pressure device, the negative pressure device is operated to generate vacuum suction force to the suction holes 14, and the negative pressure device is stopped to break vacuum to the suction holes 14 generated with the vacuum suction force.
Before the working surface 12 at the feeding level a receives the composite unit tape 101 produced and output from the composite unit tape producing device 100, the first pressing claw driving unit drives the pressing claw 13 to move away from the working surface 12, the second pressing claw driving unit drives the pressing claw 13 moving away from the working surface 12 to rotate in the horizontal plane, and the rotated position of the pressing claw 13 meets the requirement of avoiding the composite unit tape 102 output from the composite unit tape producing device 100, so that the composite unit tape 102 output from the composite unit tape producing device 100 can be smoothly conveyed to the working surface 12 at the feeding level a. After the working surface 12 at the feeding level a receives the composite unit tape 101 produced and output from the composite unit tape producing apparatus 100, the second presser driving unit drives the rotated presser 13 to reset, and the first presser driving unit drives the reset presser 13 to move in a direction approaching the working surface 12 to press the composite unit tape 102. At this time, the cutting mechanism 20 operates to cut the composite unit material tape 101 to form the composite unit 102, the plurality of suction holes 14 on the working surface 12 generate vacuum suction force under the action of the negative pressure device to suck the composite unit 102, and at the same time, the first gripper driving unit drives the gripper 13 pressed on the composite unit 102 to move in a direction away from the working surface 12, and the second gripper driving unit drives the gripper 13 moved in a direction away from the working surface 12 to rotate in a horizontal plane so as to avoid the composite unit 102. In this way, after the working surface 12 forming the composite unit 102 switches the working surface 12 from the feeding position a to the lamination position B along the fixed rotation direction around the rotation axis of the rotating body 10, the pressing assembly does not need to execute the driving action again, and only the plurality of the adsorption holes 14 are needed to break the vacuum, so as to release the adsorbed composite unit 102, thus improving the release speed of the composite unit 102 and further improving the lamination efficiency.
In this application, a pressing pin assembly (not shown in the drawings) is further disposed on the lamination table 30, and the pressing pin assembly is used for pressing the composite unit 102 released onto the lamination table 30, or avoiding the composite unit 102 to be released onto the lamination table 30. The composite unit 102 to be released onto the lamination table 30 refers to a composite unit that is not released by the fixing mechanism after the working face 12 on which the composite unit 102 is formed is switched from the insertion position a to the lamination position B.
Specifically, the above-mentioned pressure needle subassembly includes: the pressing needle driving unit is used for driving the pressing needle to reciprocate along the direction perpendicular to the lamination table 30 and away from or close to the lamination table 30, and the second pressing needle driving unit is used for driving the pressing needle moving along the direction away from the lamination table 30 to rotate in the horizontal plane so as to avoid the composite unit 102 to be released. When the working surface 12 on which the composite unit 102 is formed is switched from the feeding position a to the lamination position B or at the time of switching, the first pressing needle driving unit drives the pressing needle to move in a direction away from the lamination table 30 along a direction perpendicular to the lamination table 30, and the second pressing needle driving unit drives the pressing needle after moving in a direction away from the lamination table 30 to rotate in a horizontal plane so as to avoid the composite unit 102 to be released. After the composite unit 102 to be released is released onto the lamination table 30, the second pressing needle driving unit drives the pressing needle to reset, and the first pressing needle driving unit drives the reset pressing needle to move in a direction perpendicular to the lamination table 30 to a direction close to the lamination table so as to press the composite unit 102. This is cycled back and forth to stack the composite units 102 to form a laminated cell.
In the present application, the plane of the composite unit 102 on the working surface 12 above the lamination stage 30 switched from the feeding position a to the lamination stage B is parallel to the plane of the lamination stage 30, that is, the plane of the composite unit 102 on the working surface 12 above the lamination stage 30 switched from the feeding position a to the lamination stage B is parallel to the plane of the composite unit 102 released to the lamination stage 30. As a preferred embodiment, since the composite unit 102 is a flexible sheet-like structure, it is only necessary to ensure that the plane of the working surface 12 above the lamination table 30 at the position of the lamination station B, which is switched from the feeding position a, is parallel to the plane of the lamination table 30.
As described above, after ensuring that the plane of the working surface 12 above the lamination table 30 at the position switched from the feeding position a to the lamination position B is parallel to the plane of the lamination table 30, that is, the to-be-released composite unit 102 and the composite unit 102 released onto the lamination table 30 are parallel, it is convenient to determine whether the two composite units 102 are aligned or whether the deviation of the alignment is within the preset range. Correspondingly, a compound unit detection system (not shown) is also provided at the lamination station B, for detecting whether the deviation of the offset between the compound unit 102 switched onto the working face 12 above the lamination table 30 and the edge of the compound unit 102 released onto the lamination table 30 in the horizontal direction is within a preset range. A lamination stage horizontal driving assembly 31 for driving the lamination stage 30 to reciprocate in the horizontal direction is further provided on the lamination stage 30, and the lamination stage horizontal driving assembly 31 drives the lamination stage to move in the opposite direction of the offset in the horizontal direction so as to adjust the deviation between the composite units 102 switched to the working face 12 row above the lamination stage 30 and the edges of the composite units 102 released to the lamination stage 30 within a preset range, thereby avoiding the deviation of the multi-layer composite units 102 stacked on the lamination stage 30 in the stacking direction and affecting the quality of finished laminated cells.
And a battery core unloading mechanism 40 is further arranged at the lamination position B, and the battery core unloading mechanism 40 is used for unloading the formed lamination battery core so as to transfer the lamination battery core to the next procedure to perform procedures such as lamination, rubberizing and the like on the lamination battery core. In particular, the cell discharge mechanism 40 may be a robotic arm that transfers the stacked cells by clamping or suction.
In an embodiment, the lamination table 30 is further provided with a lamination table vertical driving assembly 32 for driving the lamination table 30 to reciprocate in a vertical direction, and the lamination table vertical driving assembly 32 drives the lamination table 30 to move downward in the vertical direction to avoid the battery cell unloading mechanism 40 for unloading, or drives the lamination table 30 to move upward in the vertical direction to receive the released composite unit 102, because the battery cell is formed close to the rotating body, so that the battery cell unloading mechanism 40 is inconvenient to be close to the transferring lamination battery cell.
In some embodiments, in order to reduce the occurrence of the offset phenomenon of the composite unit tape 101 received on the working surface 12 due to the unavoidable occurrence of the offset phenomenon of the composite unit tape 102 received at the receiving position a, a composite unit tape detection system for detecting whether the deviation of at least one edge of the composite unit tape 101 received on the working surface 12 at the receiving position a from at least one edge of the working surface 12 is within a predetermined orientation or not and a composite unit tape adjustment mechanism (not shown) for correcting the composite unit tape 102 in a direction opposite to the deviation of the composite unit tape 102 such that the deviation between the at least one edge of the composite unit tape 102 and the at least one edge of the working surface 12 is within a predetermined range are further provided at the receiving position a.
In the above embodiment, the composite unit material belt detection system may be a CCD imaging detection system or a photoelectric sensor detection system, for example, two photoelectric sensors are disposed above the rotating body 10, and the two photoelectric sensors are respectively disposed above two side edges of the working surface 12 along the axial direction of the rotating shaft 11 at the feeding position a, and are respectively used for detecting whether the deviation of the offset between the two side edges of the composite unit material belt 102 in the width direction and the two side edges on the working surface 12 is within a preset range. The composite unit material belt adjusting mechanism can be a mechanical arm, and the composite unit material belt is corrected along the opposite direction of the offset in a pushing mode of the mechanical arm.
In one embodiment, the lamination machine provided herein further includes: the waste sheet detection system is arranged around the periphery of the rotating body 10 and is used for detecting whether the composite unit 102 is qualified or not, and the waste sheet removing mechanism is used for adsorbing and transferring the unqualified composite unit 102 under the action of vacuum adsorption force.
As described above, the composite unit 102 includes: the separator comprises two layers of laminated diaphragms, a positive electrode plate or a negative electrode plate arranged between the two layers of diaphragms, and a negative electrode plate or a positive electrode plate arranged on the upper surface of an upper layer of diaphragms, or a negative electrode plate or a positive electrode plate arranged on the lower surface of a lower layer of diaphragms. The waste sheet detection system can detect whether the deviation between the pole piece and the diaphragm in the up-down lamination direction is in a preset direction or not through a CCD imaging principle, so that whether the composite unit is qualified or not can be judged. It should be noted that the scrap detection system may be disposed at the feeding position a or at the lamination position B.
The scrap removing mechanism includes: the vacuum chuck driving assembly is used for driving the vacuum chuck to move towards or away from the unqualified composite unit, the vacuum chuck driving assembly is used for driving the vacuum chuck to move towards the unqualified composite unit, and the vacuum chuck is used for generating vacuum adsorption force to adsorb the unqualified composite unit. The vacuum chuck driving assembly drives the vacuum chuck adsorbed with the unqualified composite unit to move in a direction away from the unqualified composite unit, and then the vacuum chuck breaks vacuum to release the unqualified composite unit, so that the unqualified composite unit is recycled.
In this application, four working surfaces 12 are disposed on the circumferential outer wall of the rotary body 10, that is, the four working surfaces 12 are equally arrayed along the circumferential outer wall of the rotary body 10, so that the four working surfaces 12 are adjacent to each other, and the sides of the two adjacent working surfaces 12 are coincident or not coincident. Of course, in other embodiments, the number of work surfaces 12 may be other values, such as: three, five, six, etc., are not listed here.
It will be appreciated that the cross-section of the rotating body 10 is a quadrilateral with four working surfaces 12 on each side of the quadrilateral. It will be appreciated that when four working surfaces 12 are provided, each rotation of the rotating body 10 about its own axis of rotation 11 in a fixed direction is at an angle between two adjacent working surfaces 12, i.e. 90 °, and that each rotation of the rotating body 10 with four working surfaces 12 by 90 ° requires one working surface 12 facing downwards and opposite the lamination table 30.
In the following, the description of the rotation of the rotary body will be given by taking setting up four working surfaces as an example, and meanwhile, in order to facilitate the description of cutting and scrap removing, a cutting position C and a scrap removing position D are specially added, a cutting mechanism 20 and a scrap detecting system are set at the cutting position C, and a scrap removing mechanism is set at the scrap removing position D.
Referring to fig. 3, at the working surface 12 at the feeding level a, the first gripper driving unit on the working surface 12 drives the gripper 13 to move away from the working surface 12 at the feeding level a, the second gripper driving unit drives the gripper moving away from the working surface 12 at the feeding level a to rotate in the horizontal plane so as to avoid the composite unit material belt 101 manufactured and output by the composite unit manufacturing device 100, after the composite unit material belt 101 is conveyed onto the working surface 12 at the feeding level a, the second gripper driving unit drives the gripper 13 to reset, and the first gripper driving unit drives the gripper 13 to move towards the working surface 12 so as to press the composite unit material belt.
Referring to fig. 4, which is a schematic view of the rotary body 10 rotated 90 ° about the rotary shaft 11 in a fixed rotation direction (i.e., a direction indicated by a solid arc arrow in the drawing), the working surface 12 at the original material level a is switched to the cutting position C, and accordingly, the cutting mechanism 20 is disposed at the cutting position C, after which the working surface 12 switched to the material level a receives the composite unit tape 101 again, and the cutting mechanism 20 cuts between the two working surfaces 12 the composite unit tape 101 again received on the working surface 12 at the original material level a and the composite unit tape 101 switched to the working surface 12 at the original material level a at the cutting position C to form the composite unit 102 on the working surface 12 at the original material level a switched to the cutting position C. The plurality of adsorption holes 14 on the working surface 12 at the original feeding position A switched to the cutting position C generate vacuum adsorption force under the action of the negative pressure device to adsorb the composite unit 102, and simultaneously, the pressing claw 13 repeatedly avoids the action of the composite unit material belt 101 under the driving of the two pressing claw driving units.
In this embodiment, the scrap detection system is disposed at the cutting position C to detect whether the composite unit is acceptable, the acceptable composite unit is released to the lamination stage at the lamination position B, and the unacceptable composite unit is not released to the lamination stage and is transferred to the scrap removing position D along with the rotation of the rotating body 10.
In this embodiment, the cutting position C may further be provided with a composite unit detecting system and a composite unit adjusting mechanism, where the composite unit detecting system is configured to detect whether a deviation between an edge of the composite unit and an edge of the working surface is within a preset range, and the composite unit adjusting mechanism is configured to move the composite unit in a direction opposite to the offset direction, and the deviation between the edge of the composite unit and the edge of the working surface is adjusted to be within the preset range, so as to meet a requirement of a subsequent process.
Referring to fig. 5, a schematic diagram is shown in which the rotating body 10 rotates 90 ° around the rotating shaft 11 along a fixed rotation direction (i.e. the direction indicated by the solid arc arrow in the drawing), the working surface 12 switched to the cutting position C is switched to the lamination position B, and the qualified composite unit 102 is detected by the scrap detection system on the working surface 12, so that the negative pressure device circumscribed by the plurality of suction holes 14 on the working surface 12 stops working, so that the plurality of negative pressure holes 14 break vacuum, and the qualified composite unit 102 is released to the lamination table 30.
Referring to fig. 6, the defective composite unit detected by the scrap detection system is transferred to the scrap removing position D along with the rotational flow of the rotary body 10, and the scrap removing mechanism provided at the scrap removing position D adsorbs and transfers the defective composite unit by the action of the vacuum adsorption force.
To sum up, the lamination machine that this application provided, not only effectually practiced thrift the space occupancy of equipment, can also improve the efficiency of production lamination electric core.
The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the invention pertains, based on the idea of the invention.
Claims (10)
1. A lamination machine, comprising:
a rotary body rotatable around its own rotation axis in a fixed rotation direction, and a material inlet position and a lamination position provided at the periphery of the rotary body in the fixed rotation direction;
the rotating body includes: at least two working surfaces which are arranged on the peripheral outer wall of the machine tool in a surrounding manner, and a fixing mechanism positioned on each working surface; the rotating body rotates around the rotating shaft along a fixed rotating direction so as to switch the working surface between a material inlet position and a lamination position; the working surface is used for receiving the composite unit material belt at a feeding position, the feeding position is provided with a cutting mechanism for cutting the composite unit material belt to form a composite unit, and the fixing mechanism is used for fixing the composite unit material belt and the composite unit; the lamination position is provided with a lamination table positioned below the rotating body, and the fixing mechanism is also used for releasing the composite unit to the lamination table; the lamination table is used for receiving the composite units and laminating the received composite units to a preset layer number to form a lamination cell.
2. The lamination machine of claim 1, wherein the plane of the composite unit on the working surface above the lamination table is parallel to the plane of the lamination table, and the lamination position is further provided with a composite unit detection system for detecting whether a deviation of an offset between the composite unit on the working surface above the lamination table and an edge of the composite unit released onto the lamination table in a horizontal direction is within a preset range; the lamination table further comprises a lamination table horizontal driving assembly for driving the lamination table to reciprocate along the horizontal direction, and the lamination table horizontal driving assembly drives the lamination table to move along the opposite direction of the offset in the horizontal direction so as to adjust the offset between the edge of the composite unit switched onto the working surface above the lamination table and the edge of the composite unit released onto the lamination table to be within a preset range.
3. The lamination machine of claim 2, wherein a battery cell unloading mechanism is further arranged at the lamination position and is used for unloading the lamination battery cells; the lamination table further comprises a lamination table vertical driving assembly used for driving the lamination table to reciprocate along the vertical direction, and the lamination table vertical driving assembly drives the lamination table to move downwards in the vertical direction to avoid the battery core unloading mechanism to unload materials, or drives the lamination table to move upwards in the vertical direction to receive materials.
4. The lamination machine of claim 1, wherein the material inlet position is further provided with a composite unit material belt detection system and a composite unit material belt adjusting mechanism, and the composite unit material belt detection system is used for detecting whether deviation between the edge of the composite unit material belt received on the working surface and the edge of the working surface is within a preset range; the composite unit material belt adjusting mechanism is used for correcting the composite unit material belt along the opposite direction of the composite unit material belt deviation so as to enable the deviation between the edge of the composite unit material belt and the edge of the working surface to be in a preset range.
5. The lamination machine of claim 1, wherein the securing mechanism comprises: a compacting assembly for compacting or releasing the composite unit strip prior to forming the composite unit and for releasing the composite unit after forming the composite unit; the adsorption assembly is used for adsorbing or releasing the composite unit after the composite unit is formed.
6. The lamination machine of claim 5, wherein the hold down assembly comprises: the pressing claws are arranged on two opposite sides of the working surface along the width direction of the composite unit material belt, the first pressing claw driving unit is used for driving the pressing claws to move towards or away from the working surface, and the second pressing claw driving unit is used for driving the pressing claws which move towards or away from the working surface to rotate in the horizontal plane; the adsorption assembly includes: the plurality of adsorption holes are arranged on each working surface and are externally connected with a negative pressure device for generating vacuum adsorption force; after the composite unit is formed, the negative pressure device works to enable the plurality of adsorption holes to generate vacuum adsorption force so as to adsorb the composite unit; when the composite unit which is qualified in detection of the brothers rotates above the lamination table along with any working surface and is opposite to the lamination table, the negative pressure device breaks vacuum so that the plurality of adsorption holes release the composite unit.
7. The lamination machine of claim 1, wherein the lamination table is further provided with a needle pressing assembly for pressing the composite unit released to the lamination table or avoiding the composite unit to be released to the lamination table.
8. The lamination machine of claim 7, wherein the pin assembly comprises: the pressing needle is used for driving the pressing needle to reciprocate along the direction perpendicular to the lamination table so as to press the first pressing needle driving unit of the compound unit, and driving the pressing needle to reciprocate along the direction perpendicular to the axial direction of the pressing needle so as to avoid the second pressing needle driving unit of the compound unit.
9. The lamination machine of claim 1, further comprising: the waste piece detecting system is used for detecting whether the composite unit is qualified or not, and the waste piece removing mechanism is used for adsorbing and transferring the unqualified composite unit through the vacuum adsorption effect.
10. The lamination machine of claim 9, wherein the scrap removal mechanism comprises: the vacuum chuck driving assembly is used for driving the vacuum chuck to move towards or away from the unqualified composite unit; the vacuum chuck driving assembly drives the vacuum chuck to move towards the unqualified composite unit, and the vacuum chuck is used for generating vacuum negative pressure to adsorb the unqualified composite unit; the vacuum chuck driving assembly drives the vacuum chuck to move away from the unqualified composite unit, and the vacuum chuck breaks vacuum to release the unqualified composite unit.
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| CN112993415B (en) * | 2021-05-08 | 2021-10-15 | 蜂巢能源科技有限公司 | Lamination device and lamination equipment with same |
| CN116354142A (en) * | 2023-03-09 | 2023-06-30 | 三一技术装备有限公司 | Roller, sheet making system and battery cell production line |
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