CN112421120A - Cell flattening equipment for lithium battery production process - Google Patents
Cell flattening equipment for lithium battery production process Download PDFInfo
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- CN112421120A CN112421120A CN202011341146.4A CN202011341146A CN112421120A CN 112421120 A CN112421120 A CN 112421120A CN 202011341146 A CN202011341146 A CN 202011341146A CN 112421120 A CN112421120 A CN 112421120A
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- battery cell
- material conveying
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 94
- 238000001125 extrusion Methods 0.000 claims abstract description 49
- 238000007599 discharging Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims description 33
- 239000002994 raw material Substances 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 108010066057 cabin-1 Proteins 0.000 description 10
- 238000003825 pressing Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000251729 Elasmobranchii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000004804 winding 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A core flattening device for a lithium battery production process comprises a working cabin, a blanking assembly, a material conveying assembly, a flattening assembly, a discharging assembly, a laser positioner assembly and a controller; the material conveying assembly is arranged in the working cabin; the blanking assembly is arranged above the feeding end of the material conveying assembly; the flattening component is arranged in the working cabin; the discharging component is arranged below the discharging end of the material conveying component. The invention realizes the high-efficiency circulation of blanking, flattening and discharging, and has strong automation performance; the die and the extrusion plate are convenient to mount and dismount; the cell is softened in a heating mode, the difficulty of a flattening process is reduced, and cold air is sent to the flattened cell to help the flattened cell to cool, so that the purpose of rapid shaping is realized, and the stability of a flattening effect is ensured; the center of the battery core is extruded through the extrusion plate, and the edge of the battery core is rotationally extruded by the extrusion roller, so that the battery core is uniformly stressed, and the flattened battery core is uniform in thickness; the fixing seat is in rotating fit with knocking, so that the fixing seat is stressed uniformly, and the unloading speed is accelerated.
Description
Technical Field
The invention relates to the field of lithium battery production, in particular to a core flattening device for a lithium battery production process.
Background
The lithium ion battery is a high-performance secondary battery, has the advantages of high working voltage, high volume and weight energy density, long service life, low self-discharge rate, no memory effect, environmental friendliness and the like, and is widely applied to the fields of mobile communication equipment, notebook computers, video recorders, PDAs (personal digital assistants), digital cameras, electric tools, torpedoes, missiles and the like. When the lithium ion battery is manufactured, a 'casing-in' process is carried out, namely, an electric core body which is formed by winding positive and negative pole pieces is placed in a casing. Because different types of battery cores have different size requirements on positive and negative pole pieces, and a certain reserved space must be kept in a shell to ensure the safety performance of the battery, but people hope to improve the capacity to the maximum extent, in the manufacturing process of the battery, the battery core body is often too thick to enter the shell, or the battery core pole piece is scratched in the shell entering process to cause short circuit or open circuit inside the battery, and after the excessively thick battery core enters the shell, the phenomenon of bulging in the pre-charging process is easy to occur, so that the battery is deformed or even explodes. In order to solve the problems, a flattening process is added before the electric core body is inserted into the shell, and the electric core is flattened by setting suitable technological parameters, so that the electric core is easy to be inserted into the shell after being flattened.
The existing core flattening equipment for the lithium battery production process is provided with a dead plate, the function is single, the thickness uniformity and the stability of a flattened core are poor, and the subsequent lithium battery processing effect is influenced.
In order to solve the problems, the application provides a cell flattening device for a lithium battery production process.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a core flattening device for a lithium battery production process. The invention realizes the high-efficiency circulation of blanking, flattening and discharging, and has strong automation performance; the die and the extrusion plate are convenient to mount and dismount; the cell is softened in a heating mode, the difficulty of a flattening process is reduced, and cold air is sent to the flattened cell to help the flattened cell to cool, so that the purpose of rapid shaping is realized, and the stability of a flattening effect is ensured; the center of the battery core is extruded through the extrusion plate, and the edge of the battery core is rotationally extruded by the extrusion roller, so that the battery core is uniformly stressed, and the flattened battery core is uniform in thickness; the fixing seat is in rotating fit with knocking, so that the fixing seat is stressed uniformly, and the unloading speed is accelerated.
(II) technical scheme
In order to solve the problems, the invention provides a core flattening device for a lithium battery production process, which comprises a working cabin, a blanking assembly, a material conveying assembly, a flattening assembly, a discharging assembly, a laser positioner assembly and a controller, wherein the working cabin is provided with a feeding hole; the left end and the right end of the working cabin are respectively provided with a discharge hole and a feed hole; the material conveying assembly is arranged in the working cabin, and two ends of the material conveying assembly extend to the discharge port and the feed port; the blanking assembly is arranged above the feeding end of the material conveying assembly; the flattening component is arranged in the working cabin; the discharging component is arranged below the discharging end of the material conveying component; the controller is in communication connection with the blanking assembly, the material conveying assembly, the flattening assembly, the laser positioner assembly and the discharging assembly; the blanking assembly comprises a material storage box, a material partition plate, a telescopic plate, a first driving cylinder and a vacuum adsorption piece; the material storage box is arranged above the feeding end of the working cabin and is provided with a first laser receiving part of the laser positioner assembly; the material separating plate is arranged inside the material storage box along the vertical direction; the upper end of the telescopic plate which moves up and down is connected with the lower end of the material partition plate in a sliding way, and a blanking channel is reserved between the lower end of the telescopic plate and the bottom of the material storage box; the first driving cylinder is arranged on one side of the material storage box, and a telescopic rod of the first driving cylinder extends into the material storage box and is opposite to the blanking channel; the horizontally moving vacuum adsorption piece is connected with a telescopic rod end of the first driving cylinder; the material conveying assembly comprises a material discharging roller, a material feeding roller, a material conveying belt, a mould mounting part and a first driving motor; the discharging roller and the feeding roller which are driven by the first driving motor are respectively and rotatably arranged on the discharging end and the feeding end of the working cabin; the material conveying belt is sleeved with the discharge roller and the feed roller and synchronously rotates with the discharge roller and the feed roller; the die mounting piece comprises a mounting piece, a fixed seat and a die; one end of the mounting piece is connected with the material conveying belt, and the other end of the mounting piece is rotatably connected with the fixed seat; the mould is movably connected to the fixed seat; the fixed seat is provided with a laser emitting part of the laser locator component; the flattening assembly comprises a guide cover, a second driving cylinder, a squeezing plate, a squeezing roller, an air supply pipe, an air cooler and a guide plate; the guide cover is arranged at the top end of the inner wall of the working cabin, the guide opening faces the material conveying belt, and a second laser receiving part of the laser positioner assembly is arranged on the guide cover; the upper end of a guide plate moving along the inner wall of the guide cover is connected with the telescopic end of the second driving cylinder, and the lower end of the guide plate is movably connected with an extrusion plate; the extrusion roller is arranged at the periphery of the extrusion plate, and one end of the extrusion roller is rotatably connected with the side wall of the extrusion plate; heating layers are arranged at the working ends of the extrusion plate and the extrusion roller; the air inlet end of the blast pipe is communicated with the air cooler, and the air outlet end of the blast pipe is communicated with the lower end of the guide cover; the discharging assembly comprises a second driving motor and a knocking head; the second driving motor is arranged at the lower end of the working cabin; the knocking head is positioned below the discharge hole of the working cabin and is connected with a main shaft of the second driving motor.
Preferably, the controller is arranged on an outer wall of the work compartment.
Preferably, the top end of the working cabin is provided with a feeding port communicated with the material storage box; the dog-house is located the one side that separates the flitch.
Preferably, a feed opening is formed in the bottom end of the storage box; the feed opening is positioned at the other side of the material separating plate.
Preferably, the blanking assembly further comprises a third driving motor and a lead screw; the material separating plate is provided with a mounting groove with a downward opening; the third driving motor is arranged in the mounting groove; the lead screw driven by the third driving motor is arranged along the vertical direction, the upper end of the lead screw is connected with a main shaft of the third driving motor, and the lower end of the lead screw is in threaded connection with the telescopic plate.
Preferably, the expansion plate is slidably connected with the groove wall of the mounting groove.
Preferably, the die mount further comprises a threaded nail; the fixed seat is provided with a threaded hole; the mold is provided with a clamping hole; the screw thread nail is in threaded connection with the hole wall of the threaded hole, and is clamped with the clamping hole.
Preferably, the mounting part is provided with a fourth driving motor; the main shaft of the fourth driving motor is connected with the fixed seat.
Preferably, the lower end of the guide plate is provided with a connecting groove; the upper end of the extrusion plate is provided with a connector; the connecting head is in threaded connection with the groove wall of the connecting groove.
The invention also provides a method for flattening the battery core for the lithium battery production process, which comprises the following steps:
s1, selecting a proper die and a matched extrusion plate according to production requirements, and installing;
s2, charging a sufficient number of battery cells into the material storage box through the material feeding port;
s3, adjusting the telescopic plate to move up and down according to the thickness of the battery cell raw material, so that the blanking amount is accurate and stable each time;
s4, the material conveying belt rotates, and the die mounting piece moves along the processing direction;
s5, the first laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece moves to the position below the material storage box, the first driving cylinder pushes the vacuum adsorption piece to penetrate through the blanking channel to adsorb the battery cell raw material, and the battery cell raw material falls into the die from the blanking port;
s6, the second laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece moves to the position below the flattening assembly and is positioned in the guide cover, and the second driving cylinder pushes the guide plate to move downwards until the extrusion roller and the extrusion plate contact the cell raw material to rotationally heat the cell raw material;
s7, when the battery cell is softened, moving the extrusion plate and the extrusion roller downwards to extrude the battery cell, and simultaneously rotating the battery cell to enable the edge of the battery cell to be stressed uniformly;
s8, sending cold air to the flattened battery cell to accelerate cooling and shaping;
s9, finally, moving the die mounting piece to the discharging end, and knocking the fixing seat from the lower part by the knocking head in each direction under the rotating state of the die mounting piece so that the compacted battery cell is loosened and finally falls down.
The technical scheme of the invention has the following beneficial technical effects:
the automatic material discharging device has the advantages that the material conveying assembly, the flattening assembly, the discharging assembly and the discharging assembly are matched, so that efficient circulation of discharging, flattening and discharging is realized, the automation performance is high, the manual labor is reduced, and the production efficiency is increased;
the die and the extrusion plate are convenient to mount and dismount, corresponding replacement is convenient to carry out according to production requirements, and the maintenance is also convenient;
thirdly, softening the battery cell in a heating mode, reducing the difficulty of the flattening process, and then supplying cold air to the flattened battery cell to help the flattened battery cell to cool, so that the purpose of rapid shaping is realized, and the stability of the flattening effect is ensured;
fourthly, the center of the battery cell is extruded through the extrusion plate, and the edge of the battery cell is rotationally extruded by the extrusion roller, so that the battery cell is uniformly stressed, and the flattened battery cell is uniform in thickness;
fifth, the invention makes the force be uniform through the rotation of the fixed seat and the matching of knocking, accelerates the discharging speed, and avoids the damage of the fixed seat due to uneven force.
Drawings
Fig. 1 is a schematic diagram of an external structure of a cell flattening apparatus for a lithium battery production process according to the present invention.
Fig. 2 is a schematic diagram of an internal structure of a cell flattening apparatus for a lithium battery production process according to the present invention.
Fig. 3 is a schematic cross-sectional view of a blanking assembly in a cell flattening device for a lithium battery production process according to the present invention.
Fig. 4 is a cross-sectional view at a position a of a cell flattening apparatus for a lithium battery production process according to the present invention.
Fig. 5 is a cross-sectional view of a flattening assembly in a cell flattening apparatus for a lithium battery production process according to the present invention.
Fig. 6 is a bottom view of a guide plate in a cell flattening apparatus for a lithium battery production process according to the present invention.
Fig. 7 is an enlarged view of a portion B of a cell flattening apparatus for a lithium battery production process according to the present invention.
The attached drawings are marked as follows: 1. a working cabin; 2. a blanking assembly; 3. a material conveying component; 4. flattening the assembly; 5. a discharge assembly; 6. a controller; 7. a material storage box; 8. a material separating plate; 9. a retractable plate; 10. a third drive motor; 11. a lead screw; 12. a first driving cylinder; 13. a vacuum adsorption member; 14. a feeding port; 15. a feeding port; 16. a discharging roller; 17. a feed roll; 18. a material conveying belt; 19. a mold mount; 20. a first drive motor; 21. a mounting member; 22. a fixed seat; 23. a mold; 24. a threaded nail; 25. a guide housing; 26. a second driving cylinder; 27. a pressing plate; 28. a squeeze roll; 29. an air supply pipe; 30. an air cooler; 31. a knocking head; 32. a guide plate; 33. a second drive motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1
As shown in fig. 1-7, the core flattening device for the lithium battery production process, provided by the invention, comprises a working cabin 1, a blanking assembly 2, a material conveying assembly 3, a flattening assembly 4, a discharging assembly 5, a laser positioner assembly and a controller 6; the left end and the right end of the working cabin 1 are respectively provided with a discharge hole and a feed hole; the material conveying assembly 3 is arranged in the working cabin 1, and two ends of the material conveying assembly extend to the material outlet and the material inlet; the blanking component 2 is arranged above the feeding end of the material conveying component 3; the flattening assembly 4 is arranged in the working cabin 1; the discharging component 5 is arranged below the discharging end of the material conveying component 3; the controller 6 is in communication connection with the blanking assembly 2, the material conveying assembly 3, the flattening assembly 4, the laser positioner assembly and the discharging assembly 5; the blanking assembly 2 comprises a material storage box 7, a material partition plate 8, a telescopic plate 9, a first driving cylinder 12 and a vacuum adsorption piece 13; the material storage box 7 is arranged above the feeding end of the working cabin 1, and a first laser receiving part of the laser positioner assembly is arranged on the material storage box 7; the material separating plate 8 is arranged inside the material storage box 7 along the vertical direction; the upper end of the telescopic plate 9 which moves up and down is connected with the lower end of the material separating plate 8 in a sliding way, and a blanking channel is reserved between the lower end and the bottom of the material storage box 7; the first driving cylinder 12 is arranged on one side of the material storage box 7, and a telescopic rod of the first driving cylinder extends into the material storage box 7 and is opposite to the blanking channel; the horizontally moving vacuum adsorption piece 13 is connected with the telescopic rod end of the first driving cylinder 12; the material conveying component 3 comprises a discharge roller 16, a feed roller 17, a material conveying belt 18, a mould mounting part 19 and a first driving motor 20; the discharging roller 16 and the feeding roller 17 which are driven by the first driving motor 20 are respectively and rotatably arranged on the discharging end and the feeding end of the working cabin 1; the material conveying belt 18 is sleeved with the discharge roller 16 and the feed roller 17 and rotates synchronously with the same; the die mounting part 19 comprises a mounting part 21, a fixed seat 22 and a die 23; one end of the mounting piece 21 is connected with the material conveying belt 18, and the other end is rotatably connected with the fixed seat 22; the die 23 is movably connected on the fixed seat 22; the fixed seat 22 is provided with a laser emitting part of the laser locator component; the flattening assembly 4 comprises a guide cover 25, a second driving cylinder 26, a pressing plate 27, a pressing roller 28, an air supply pipe 29, an air cooler 30 and a guide plate 32; the guide cover 25 is arranged at the top end of the inner wall of the working cabin 1, the guide opening faces the material conveying belt 18, and a second laser receiving part of the laser locator component is arranged on the guide cover 25; the upper end of a guide plate 32 moving along the inner wall of the guide cover 25 is connected with the telescopic end of the second driving cylinder 26, and the lower end is movably connected with a squeezing plate 27; the extrusion roller 28 is arranged at the periphery of the extrusion plate 27, and one end of the extrusion roller is rotatably connected with the side wall of the extrusion plate 27; heating layers are arranged at the working ends of the extrusion plate 27 and the extrusion roller 28; the air inlet end of the blast pipe 29 is communicated with an air cooler 30, and the air outlet end is communicated with the lower end of the guide cover 25; the discharging assembly 5 comprises a second driving motor 33 and a knocking head 31; the second driving motor 33 is arranged at the lower end of the working cabin 1; the knocking head 31 is located below the discharge port of the working chamber 1 and is connected with the main shaft of the second driving motor 33.
In an alternative embodiment, the controller 6 is arranged on an outer wall of the working cabin 1.
In an alternative embodiment, the top end of the working cabin 1 is provided with a feeding port 15 communicated with the material storage box 7; the feeding port 15 is positioned at one side of the material separating plate 8.
In an optional embodiment, the bottom end of the storage box 7 is provided with a feed opening 14; the feed opening 14 is located on the other side of the material-separating plate 8.
In an alternative embodiment, the blanking assembly 2 further comprises a third driving motor 10 and a lead screw 11; the material separating plate 8 is provided with a mounting groove with a downward opening; the third driving motor 10 is arranged in the mounting groove; the lead screw 11 driven by the third driving motor 10 is arranged along the vertical direction, the upper end of the lead screw is connected with the main shaft of the third driving motor 10, and the lower end of the lead screw is in threaded connection with the telescopic plate 9.
In an alternative embodiment, the extension plate 9 is slidably connected to the groove wall of the installation groove.
In an alternative embodiment, the die mount 19 further includes threaded spikes 24; the fixed seat 22 is provided with a threaded hole; the mold 23 is provided with a clamping hole; the screw 24 is in threaded connection with the hole wall of the threaded hole and is clamped with the connecting clamp hole.
In an alternative embodiment, a fourth driving motor is provided on the mounting member 21; the main shaft of the fourth driving motor is connected with the fixed seat 22.
In an alternative embodiment, the lower end of the guide plate 32 is provided with a coupling groove; the upper end of the extrusion plate 27 is provided with a connector; the connecting head is in threaded connection with the groove wall of the connecting groove.
According to the cell flattening equipment for the lithium battery production process, efficient circulation of blanking, flattening and discharging is achieved through the matching of the material conveying assembly 3, the flattening assembly 4, the blanking assembly 2 and the discharging assembly 5, the automation performance is high, the manual labor is reduced, and the production efficiency is increased; the die 23 and the extrusion plate 27 are convenient to mount and dismount, and can be conveniently replaced correspondingly according to production needs and maintained; the cell is softened in a heating mode, the difficulty of a flattening process is reduced, and cold air is sent to the flattened cell to help the flattened cell to cool, so that the purpose of rapid shaping is realized, and the stability of a flattening effect is ensured; after being extruded by the extrusion plate 27, the edges of the battery cell are rotationally extruded by the extrusion roller 28, so that the battery cell is uniformly stressed, and the thickness of the flattened battery cell is uniform; the fixing seat 22 rotates, so that the stress is uniform, the unloading speed is accelerated, and the fixing seat 22 is prevented from being damaged due to uneven stress.
Example 2
The invention also provides a method for flattening the battery core for the lithium battery production process, which comprises the following steps:
s1, selecting a proper die 23 and a matched extrusion plate 27 according to production requirements, and installing;
s2, charging a sufficient number of battery cells into the storage box 7 through the feeding port 15;
s3, adjusting the expansion plate 9 to move up and down according to the thickness of the battery cell raw material, so that the blanking amount is accurate and stable each time;
s4, the material conveying belt 18 rotates, and the die mounting piece 19 moves along the processing direction;
s5, the first laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece 19 moves to the position below the material storage box 7, the first driving cylinder 12 pushes the vacuum adsorption piece 13 to penetrate through the blanking channel to adsorb the cell raw material, and the cell raw material falls into the die 23 from the blanking port 14;
s6, the second laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece 19 moves to the position below the flattening assembly 4 and is positioned in the guide cover 25, and the second driving air cylinder 26 pushes the guide plate 32 to move downwards until the extrusion roller 28 and the extrusion plate 27 contact the cell raw material to rotationally heat the cell raw material;
s7, when the battery cell is softened, moving the extrusion plate 27 and the extrusion roller 28 downwards to extrude the battery cell, and simultaneously rotating the battery cell to enable the edge of the battery cell to be stressed uniformly;
s8, sending cold air to the flattened battery cell to accelerate cooling and shaping;
s9, and finally the die mounting piece 19 is moved to the discharge end, and in its rotated state, the striking head 31 strikes the holder 22 from below in all directions, so that the compacted battery cell becomes loose and finally falls down.
The method for flattening the battery cell for the lithium battery production process is automatic, intelligent and simple to operate, reduces the labor intensity of workers, and improves the working efficiency and the flattening effect.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A core flattening device for a lithium battery production process is characterized by comprising a working cabin (1), a blanking assembly (2), a material conveying assembly (3), a flattening assembly (4), a discharging assembly (5), a laser positioner assembly and a controller (6); the left end and the right end of the working cabin (1) are respectively provided with a discharge hole and a feed hole; the material conveying assembly (3) is arranged in the working cabin (1), and two ends of the material conveying assembly extend to the discharge hole and the feed hole; the blanking component (2) is arranged above the feeding end of the material conveying component (3); the flattening component (4) is arranged in the working cabin (1); the discharging component (5) is arranged below the discharging end of the material conveying component (3); the controller (6) is in communication connection with the blanking assembly (2), the material conveying assembly (3), the flattening assembly (4), the laser positioner assembly and the discharging assembly (5);
the blanking assembly (2) comprises a material storage box (7), a material partition plate (8), a telescopic plate (9), a first driving cylinder (12) and a vacuum adsorption piece (13); the material storage box (7) is arranged above the feeding end of the working cabin (1), and a first laser receiving part of the laser positioner assembly is arranged on the material storage box (7); the material separating plate (8) is arranged inside the material storage box (7) along the vertical direction; the upper end of a retractable plate (9) which moves up and down is connected with the lower end of a material separating plate (8) in a sliding way, and a blanking channel is reserved between the lower end and the bottom of a material storage box (7); the first driving cylinder (12) is arranged on one side of the material storage box (7), and a telescopic rod of the first driving cylinder extends into the material storage box (7) and is opposite to the blanking channel; the horizontally moving vacuum adsorption piece (13) is connected with the telescopic rod end of the first driving cylinder (12);
the material conveying component (3) comprises a discharge roller (16), a feed roller (17), a material conveying belt (18), a mould mounting part (19) and a first driving motor (20); a discharge roller (16) and a feed roller (17) which are driven by a first driving motor (20) are respectively and rotatably arranged on the discharge end and the feed end of the working cabin (1); the material conveying belt (18) is sleeved with the discharge roller (16) and the feed roller (17) and rotates synchronously with the discharge roller and the feed roller; the die mounting piece (19) comprises a mounting piece (21), a fixed seat (22) and a die (23); one end of the mounting piece (21) is connected with the material conveying belt (18), and the other end is rotatably connected with the fixed seat (22); the mould (23) is movably connected on the fixed seat (22); the fixed seat (22) is provided with a laser emitting part of the laser positioner component;
the flattening assembly (4) comprises a guide cover (25), a second driving cylinder (26), a squeezing plate (27), a squeezing roller (28), an air supply pipe (29), an air cooler (30) and a guide plate (32); the guide cover (25) is arranged at the top end of the inner wall of the working cabin (1), the guide opening faces the material conveying belt (18), and a second laser receiving part of the laser positioner assembly is arranged on the guide cover (25); the upper end of a guide plate (32) moving along the inner wall of the guide cover (25) is connected with the telescopic end of the second driving cylinder (26), and the lower end is movably connected with a squeezing plate (27); the extrusion rollers (28) are arranged on the periphery of the extrusion plate (27), and one end of each extrusion roller is rotatably connected with the side wall of the extrusion plate (27); heating layers are arranged at the working ends of the extrusion plate (27) and the extrusion roller (28); the air inlet end of the blast pipe (29) is communicated with an air cooler (30), and the air outlet end is communicated with the lower end of the guide cover (25);
the discharging assembly (5) comprises a second driving motor (33) and a knocking head (31); the second driving motor (33) is arranged at the lower end of the working cabin (1); the knocking head (31) is positioned below the discharge hole of the working cabin (1) and is connected with a main shaft of a second driving motor (33).
2. The battery cell flattening apparatus for lithium battery production process according to claim 1, wherein the controller (6) is provided on an outer wall of the operating compartment (1).
3. The battery cell flattening equipment for the lithium battery production process according to claim 1, wherein a feeding port (15) communicated with the storage box (7) is formed at the top end of the working cabin (1); the feeding port (15) is positioned at one side of the material separating plate (8).
4. The battery cell flattening equipment for the lithium battery production process according to claim 3, wherein a feed opening (14) is formed at the bottom end of the storage box (7); the feed opening (14) is positioned at the other side of the material separating plate (8).
5. The battery cell flattening device for the lithium battery production process, according to claim 1, is characterized in that the blanking assembly (2) further comprises a third driving motor (10) and a lead screw (11); the material separating plate (8) is provided with a mounting groove with a downward opening; the third driving motor (10) is arranged in the mounting groove; the lead screw (11) driven by the third driving motor (10) is arranged along the vertical direction, the upper end of the lead screw is connected with a main shaft of the third driving motor (10), and the lower end of the lead screw is connected with the telescopic plate (9) in a threaded manner.
6. The battery cell flattening apparatus for lithium battery production process according to claim 1, wherein the expansion plate (9) is slidably connected to a groove wall of the installation groove.
7. The battery cell flattening apparatus for lithium battery production process according to claim 1, wherein the die mount (19) further includes a screw (24); a threaded hole is formed in the fixed seat (22); a clamping hole is formed in the die (23); the screw thread nail (24) is in threaded connection with the hole wall of the threaded hole and is clamped with the connecting clamp hole.
8. The battery cell flattening apparatus for lithium battery production process according to claim 1, wherein a fourth driving motor is provided on the mounting member (21); the main shaft of the fourth driving motor is connected with a fixed seat (22).
9. The battery cell flattening apparatus for lithium battery production process according to claim 1, wherein the lower end of the guide plate (32) is provided with a connection groove; the upper end of the extrusion plate (27) is provided with a connector; the connecting head is in threaded connection with the groove wall of the connecting groove.
10. The device for flattening the battery core for the lithium battery production process according to any one of claims 1 to 9, which provides a method for flattening the battery core for the lithium battery production process, and is characterized by comprising the following steps:
s1, selecting a proper die (23) and a matched extrusion plate (27) according to production requirements, and installing;
s2, charging a sufficient amount of battery cells into the storage box (7) through the feeding port (15);
s3, adjusting the expansion plate (9) to move up and down according to the thickness of the battery cell raw material, so that the blanking amount is accurate and stable each time;
s4, the material conveying belt (18) rotates, and the die mounting piece (19) moves along the processing direction;
s5, the first laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece (19) moves to the position below the material storage box (7), the first driving cylinder (12) pushes the vacuum adsorption piece (13) to penetrate through the blanking channel to adsorb the battery cell raw material, and the battery cell raw material falls into the die (23) from the blanking port (14);
s6, the second laser receiving part of the laser positioner assembly and the laser emitting part of the laser positioner assembly mutually sense, the die mounting piece (19) moves to the position below the flattening assembly (4) and is positioned in the guide cover (25), and the second driving air cylinder (26) pushes the guide plate (32) to move downwards until the extrusion roller (28) and the extrusion plate (27) contact the cell raw material to rotationally heat the cell raw material;
s7, when the battery cell is softened, moving the extrusion plate (27) and the extrusion roller (28) downwards to extrude the battery cell, and simultaneously rotating the battery cell to enable the edge of the battery cell to be stressed uniformly;
s8, sending cold air to the flattened battery cell to accelerate cooling and shaping;
s9, finally, moving the die mounting piece (19) to the discharging end, and knocking the fixing seat (22) from the lower part by the knocking head (31) in all directions under the rotating state of the die mounting piece, so that the compacted battery core is loosened and finally falls down.
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| CN202011341146.4A CN112421120B (en) | 2020-11-25 | 2020-11-25 | Cell flattening equipment for lithium battery production process |
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| CN114883630A (en) * | 2022-07-06 | 2022-08-09 | 楚能新能源股份有限公司 | Electricity core processingequipment |
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| CN112421120B (en) | 2022-02-08 |
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