CN118287345B - Diaphragm coating device for sodium ion battery production and coating method thereof - Google Patents
Diaphragm coating device for sodium ion battery production and coating method thereof Download PDFInfo
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- CN118287345B CN118287345B CN202410711425.7A CN202410711425A CN118287345B CN 118287345 B CN118287345 B CN 118287345B CN 202410711425 A CN202410711425 A CN 202410711425A CN 118287345 B CN118287345 B CN 118287345B
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- battery diaphragm
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- folding
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- 238000000576 coating method Methods 0.000 title claims abstract description 97
- 239000011248 coating agent Substances 0.000 title claims abstract description 88
- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 25
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 24
- 238000000429 assembly Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 48
- 238000001035 drying Methods 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 3
- 230000008602 contraction Effects 0.000 claims 2
- 239000000306 component Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 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
- 239000003973 paint Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/02—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to surfaces by single means not covered by groups B05C1/00 - B05C7/00, whether or not also using other means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/16—Rotary folders
-
- 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
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of battery diaphragm coating, and particularly discloses a diaphragm coating device for sodium ion battery production and a coating method thereof, wherein the device comprises the following steps: the device comprises two movable seats and two groups of conveying components, wherein the movable seats are provided with a first folding roller and a second folding roller, the first folding roller is positioned at the bottom of a battery diaphragm, and the second folding roller is positioned above the battery diaphragm; the conveying assembly comprises two conveying belts which are respectively positioned at the top and the bottom of the battery diaphragm; according to the diaphragm coating device for sodium ion battery production and the coating method thereof, the second folding roller rotates around the first folding roller to fold the battery diaphragm, and the folded battery diaphragm is clamped and conveyed by the conveying belts on the two groups of conveying assemblies, so that when the battery diaphragm passes through the coating mechanism, the battery diaphragm is not required to be coated at intervals, a blank section reserved for the battery diaphragm is not required to pass through the coating mechanism, and the coating efficiency of the battery diaphragm is improved.
Description
Technical Field
The invention relates to the technical field of battery diaphragm coating, in particular to a diaphragm coating device for sodium ion battery production and a coating method thereof.
Background
The sodium ion battery is a secondary battery which works by means of sodium ions moving between a positive electrode and a negative electrode, and is similar to the lithium ion battery in working principle and structure, wherein a diaphragm of the sodium ion battery is one of core components of the sodium ion battery, has a remarkable effect on the overall performance of the battery, and in order to improve the battery performance and safety of the sodium ion battery diaphragm, special materials are generally coated on the sodium ion battery diaphragm, and the sodium ion battery diaphragm after coating is dried by a drying device.
The Chinese patent application document with the publication number of CN117181514A discloses a diaphragm coating device with an on-line thickness measuring function, which comprises a box body and a cross rod, wherein a film winding disc, a film collecting disc and a conveying disc are rotatably arranged on the cross rod; the support is installed on the top of box, be provided with the monitoring head on the support, quantitative coating mechanism installs on the box, the top of confession liquid system is linked together with coating roller one and coating roller two respectively, synchronous adjustment mechanism's one end and the inboard butt of diaphragm, synchronous adjustment mechanism still is connected with quantitative coating mechanism, the bottom and the synchronous adjustment mechanism transmission of elasticity straining device are connected, this application can carry out real-time supervision to the thickness of diaphragm coating, and under the unusual circumstances of monitoring coating thickness appearance, carry out thickness's regulation to the coating roller one and diaphragm, the coating roller two and the distance between the diaphragm, the thickness that the coating roller kept unanimous around guaranteeing the diaphragm, and make coating roller one and coating roller two keep steady transmission, finally ensure the quality of coating.
However, the above patent suffers from the following disadvantages: in order to enhance the safety and thermal management of the battery separator, a plurality of blank sections are often reserved at intervals when the battery separator is coated, and at the moment, the blank sections which are not coated on the separator also pass through a coating mechanism, so that the working efficiency of coating the separator is easily reduced.
Disclosure of Invention
The invention provides a diaphragm coating device for sodium ion battery production and a coating method thereof, and aims to solve the problem that in the related art, blank sections which are not coated on a diaphragm can pass through a coating mechanism and the working efficiency of diaphragm coating is easy to reduce.
The invention relates to a diaphragm coating device for sodium ion battery production and a coating method thereof, comprising the following steps: pass material mechanism, coating mechanism and stoving mechanism, still include: the folding conveying mechanism is connected to the material conveying mechanism and comprises two movable seats, the two movable seats are respectively arranged on the front side and the rear side of the material conveying mechanism, the movable seats can move left and right, a first folding roller and a second folding roller are arranged on the movable seats, the first folding roller is positioned at the bottom of a battery diaphragm, the second folding roller is positioned above the battery diaphragm, and the second folding roller can rotate around the axis of the first folding roller, so that blank sections reserved for the battery diaphragm are folded; the folding conveying mechanism further comprises two groups of conveying components, the two groups of conveying components are respectively located on the front side and the rear side of the battery diaphragm, the conveying components comprise two conveying belts, the two conveying belts are respectively located at the top and the bottom of the battery diaphragm, and the two conveying belts can clamp and convey the folded battery diaphragm. The beneficial effects are that: the second folding roller can rotate around the axis of the first folding roller, the blank section reserved by the battery diaphragm is folded, two sides of the battery diaphragm are clamped by the conveying belts on the two groups of conveying assemblies, so that the folded part of the battery diaphragm can pass through the coating mechanism, the blank section of the battery diaphragm can not be coated, and the coating efficiency of the battery diaphragm is enhanced.
Preferably, the folding conveying mechanism further comprises two second automatic telescopic parts which are respectively connected to the front side and the rear side of the material conveying mechanism, and telescopic ends of the two second automatic telescopic parts are respectively connected with the two movable seats. The effect is that: the second automatic telescopic part pushes the movable seat, so that the second folding roller and the first folding roller can be driven to synchronously move in the same direction with the battery diaphragm, and the battery diaphragm is folded by the second folding roller and the first folding roller during conveying.
Preferably, the first folding roller is inserted on the movable seat, one end of the first folding roller, which is far away from the battery diaphragm, is connected with a movable part, an annular limiting groove is formed in the movable part, one end of the second folding roller is in limiting sliding connection in the annular limiting groove, a third automatic telescopic part is connected on the movable seat, and the telescopic end of the third automatic telescopic part is connected with the movable part. The effect is that: the movable part can be pushed by the third telescopic part, so that the movable part pulls the first folding roller and the second folding roller, and the first folding roller and the second folding roller are separated from the battery diaphragm.
Preferably, the moving seat is rotatably connected with a first pushing part, the second folding roller penetrates through the first pushing part and is movably connected with the first pushing part, the first pushing part is connected with a first gear, the moving seat is also connected with a second rotation driving source, an output shaft of the second rotation driving source is connected with a second gear, and the second gear is meshed with the first gear. The effect is that: the second rotation driving source drives the second gear and the first gear to be meshed for transmission, so that the first pushing part rotates and pushes the second folding roller to rotate around the first folding roller.
Preferably, the conveying assembly comprises two connecting frames, the left ends of the two connecting frames are respectively and rotatably connected with a driving roller, the right ends of the two connecting frames are respectively and rotatably connected with a driven roller, the two connecting frames are respectively and rotatably connected with a third rotation driving source, an output shaft of the third rotation driving source is connected with the driving roller, and the conveying belt is in transmission connection between the driving roller and the driven roller. The effect is that: the transmission among the driving roller, the driven roller and the conveyer belts can be driven by the third rotary driving source, so that the adjacent two conveyer belts can clamp the battery diaphragm.
Preferably, the drying mechanism is connected with a pushing mechanism, the pushing mechanism comprises a connecting arm, a mounting groove is formed in the connecting arm, a lifting part is inserted into the inner bottom wall of the mounting groove, the bottom of the lifting part penetrates through the bottom of the connecting arm and is rotationally connected with a second pushing part, the inner top wall of the mounting groove is connected with a detecting part, and a control part is connected onto the connecting arm. The effect is that: the second pushing part can push the battery diaphragm downwards after the clamping part loosens the blank section of the battery diaphragm, so that the battery diaphragm is in a straightened state, and the battery diaphragm on the material receiving roller is prevented from loosening.
Preferably, the inner top wall of the mounting groove is connected with a detecting part for detecting the ascending and descending distance of the lifting part, and the connecting arm is connected with a control part.
The invention also provides a coating method of the diaphragm for producing the sodium ion battery, which comprises the following steps:
s1: starting the conveyor belts on the two groups of conveyor assemblies, and pulling the battery diaphragm on the material conveying mechanism to move;
S2: starting the second folding roller to rotate around the first folding roller, and folding the blank section of the battery diaphragm by the second folding roller and the first folding roller;
s3: after the folded battery diaphragm blank section moves to the two groups of conveying components, clamping and conveying the folded battery diaphragm blank section through conveying belts on the two groups of conveying components;
s4: starting a coating mechanism to coat the battery diaphragm;
S5: starting a drying mechanism to dry the coated battery diaphragm;
S6: and starting a drying mechanism to wind up the dried battery diaphragm. The beneficial effects are that: the blank section reserved on the battery diaphragm is folded and is clamped and conveyed to the two sides of the battery diaphragm by the two groups of conveying components, so that the folded part of the battery diaphragm passes through the coating mechanism, and the blank section of the battery diaphragm cannot be coated.
The beneficial effects of the invention are as follows:
the second folding roller rotates around the first folding roller to fold the battery diaphragm, and the folded battery diaphragm is clamped and conveyed by the conveying belts on the two groups of conveying assemblies, so that the battery diaphragm does not need to be coated at intervals when passing through the coating mechanism, a blank section reserved by the battery diaphragm does not need to pass through the coating mechanism, and the coating efficiency of the battery diaphragm is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the material conveying mechanism, the coating mechanism and the drying mechanism of the present invention.
Fig. 3 is a schematic perspective view of a material conveying mechanism of the present invention.
Fig. 4 is a schematic cross-sectional perspective view of the present invention.
Fig. 5 is a schematic perspective view of the folding assembly and the feed mechanism of the present invention.
Fig. 6 is a schematic perspective view of a folding assembly of the present invention.
Fig. 7 is another perspective view of the folding assembly of the present invention.
Fig. 8 is a schematic structural view of a state diagram of the battery separator of the present invention after folding.
Fig. 9 is a schematic perspective view of a conveyor assembly of the present invention.
Fig. 10 is a schematic perspective view of the pushing mechanism of the present invention.
Reference numerals:
1. A material conveying mechanism; 11. a mounting frame; 12. a discharging roller; 13. a receiving roller; 14. a first driving roller; 15. a second driving roller; 16. a slide block; 17. an elastic part; 18. a third driving roller; 19. a first rotational drive source; 2. a coating mechanism; 21. a support arm; 22. a first automatic expansion part; 23. a coating section; 3. a drying mechanism; 31. a case; 32. a heating section; 33. a fourth driving roller; 4. a folding conveying mechanism; 41. a folding assembly; 411. a second automatic expansion part; 412. a movable seat; 4121. a guide opening; 413. a movable part; 4131. an annular limit groove; 414. a first folding roller; 415. a second folding roller; 416. a third automatic expansion part; 417. a first pushing part; 418. a second rotation driving source; 419. a first gear; 4110. a second gear; 42. a transport assembly; 421. a connecting frame; 422. a third rotation driving source; 423. a drive roll; 424. driven roller; 425. a conveyor belt; 5. a pushing mechanism; 51. a connecting arm; 511. a mounting groove; 52. a lifting part; 53. a second pushing part; 54. and a detection unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 10, the membrane coating device for sodium ion battery production of the invention comprises a material conveying mechanism 1, wherein the material conveying mechanism 1 is used for conveying battery membranes, the material conveying mechanism 1 is connected with a coating mechanism 2 and a drying mechanism 3, the coating mechanism 2 is used for coating the battery membranes, the drying mechanism 3 is used for drying the coated battery membranes, the material conveying mechanism 1 is also connected with a folding conveying mechanism 4, the folding conveying mechanism 4 is used for carrying out folding conveying on the battery membranes before coating the battery membranes, so that blank sections of the battery membranes are reserved, the coating efficiency of the battery membranes is improved, and the drying mechanism 3 is connected with a pushing mechanism 5 used for pushing the coated battery membranes after drying so as to restore folding parts, thereby facilitating subsequent rolling of the dried battery membranes.
As shown in fig. 1 to 3, the material conveying mechanism 1 comprises a mounting frame 11, the inside right-hand member of the mounting frame 11 is rotationally connected with a material discharging roller 12, and is used for unreeling a battery diaphragm, the inside left-hand member of the mounting frame 11 is rotationally connected with a material collecting roller 13, and is used for reeling the battery diaphragm, the inside right-hand member of the mounting frame 11 is rotationally connected with a first driving roller 14, the first driving roller 14 is located the upper left side of the material discharging roller 12, the top of the first driving roller 14 is provided with a second driving roller 15, part of battery diaphragm is located between the first driving roller 14 and the second driving roller 15, both ends all rotate around the second driving roller 15 are connected with a sliding block 16, the sliding block 16 is in limiting sliding connection on the mounting frame 11, and the sliding block 16 is connected with an elastic part 17 between the mounting frame 11, the elastic part 17 is a spring, and is used for applying downward thrust to the sliding block 16, so that the first driving roller 14 and the second driving roller 15 can clamp the battery diaphragm, the inside left-hand member of the mounting frame 11 is rotationally connected with a third driving roller 18, the third driving roller 18 is located the upper right side of the material collecting roller 13, the axis of the third driving roller 18 is located on the first driving roller 13, the same horizontal plane as the first driving roller 14 and the first driving roller 19 is connected with the first driving source 19, and the first driving roller 19 is connected with the first driving source 19.
The first rotation driving source 19 is started to drive the material receiving roller 13 to rotate at a constant speed, so that the material receiving roller 13 pulls the battery diaphragm, the material discharging roller 12 is driven to rotate, the battery diaphragm is discharged, and at the moment, the battery diaphragm can be clamped and driven through the first driving roller 14 and the second driving roller 15, so that the battery diaphragm is in a stretched state.
As shown in fig. 1, 2 and 4, the coating mechanism 2 includes a support arm 21 connected to the mounting frame 11, a first automatic telescopic part 22 is connected to the support arm 21, the first automatic telescopic part 22 is a cylinder with a downward telescopic end, a coating part 23 is connected to the telescopic end of the first automatic telescopic part 22, a material conveying hose is connected to the coating part 23, the coating part 23 is connected to a material conveying device (not shown in the drawings) through the material conveying hose, the material conveying device is started to convey the material into the coating part 23 through the material conveying hose, the coating part 23 coats the battery diaphragm, a distance sensor is connected to the coating part 23, a controller is connected to the support arm 21, the distance sensor and the first automatic telescopic part 22 are both connected to the controller, the distance sensor detects the distance between the coating part 23 and the battery diaphragm, the detected data is transmitted to the controller, and the controller starts the first automatic telescopic part 22 to drive the coating part 23 to move up and down, so that the distance between the coating part 23 and the battery diaphragm is kept constant, and the battery diaphragm is coated.
As shown in fig. 1, 2 and 4, the drying mechanism 3 includes a box 31 connected to the mounting frame 11, the box 31 is located at the left side of the coating portion 23, the battery diaphragm can pass through the box 31, the right side of the box 31 is open, an opening is formed in the left side of the box 31, the battery diaphragm enters from the right side of the box 31 and penetrates out from the left opening of the box 31, a fourth driving roller 33 is rotatably connected to the opening of the left side of the box 31, the top of the fourth driving roller 33 is in contact with the bottom of the battery diaphragm and is used for driving and supporting the bottom of the battery diaphragm, a heating portion 32 is connected to the inner side of the box 31, and the heating portion 32 can generate heat and heat air in the box 31 so as to dry the coated battery diaphragm.
As shown in fig. 1, fig. 4 to fig. 9, the folding conveying mechanism 4 includes two sets of folding assemblies 41 and two sets of conveying assemblies 42, the two sets of folding assemblies 41 are respectively located at the front side and the rear side of the battery diaphragm, and the two sets of folding assemblies 41 are respectively located at the left side of the two sets of second driving rollers 15, the two sets of conveying assemblies 42 are respectively located at the front side and the rear side of the battery diaphragm, and the two sets of conveying assemblies 42 are respectively located at the left side of the two sets of second driving rollers 15, the battery diaphragm before coating can be folded through the two sets of folding assemblies 41, the folded battery diaphragm can be clamped and conveyed through the two sets of conveying assemblies 42, and the two sets of conveying assemblies 42 are respectively located between the two sets of folding assemblies 41 so as to avoid being blocked by the conveying assemblies 42 when the folding assemblies 41 move.
With continued reference to fig. 1 and fig. 4 to fig. 9, the folding assembly 41 includes a second automatic telescopic portion 411 connected to the mounting frame 11, the second automatic telescopic portion 411 is an air cylinder, a movable seat 412 is connected to a telescopic end of the second automatic telescopic portion 411, a first folding roller 414 is inserted into the movable seat 412, a guide opening 4121 is formed in the movable seat 412, the guide opening 4121 is arc-shaped, the circle centers of the guide opening 4121 and the first folding roller 414 are located on the same axis, the top of the first folding roller 414 contacts with the bottom of the battery diaphragm, one end of the first folding roller 414, far from the battery diaphragm, is connected with a movable portion 413, an annular limiting groove 4131 is formed in the movable portion 413, the inner side of the annular limiting groove 4131 is connected with a second folding roller 415 in a limiting sliding manner, one end of the second folding roller 415 penetrates through the guide opening 4121, the circle centers of the guide opening 4121 and the annular limiting groove 4131 are located on the same axis, a third automatic telescopic portion 416 is connected to the movable seat 412, the third automatic telescopic portion 416 is formed in such a manner that the third automatic telescopic portion 416 is connected with one end of the movable portion 413, and the movable portion is far from the movable portion or the movable portion 413 is driven to move close to the third telescopic portion, or the movable portion is far from the movable portion 413, and is far from the movable portion is far from the movable, or the movable portion is far from the movable portion 413, and is near by the movable portion is driven.
With continued reference to fig. 1 and fig. 4 to fig. 9, the moving seat 412 is rotatably connected with a first pushing portion 417, the first folding roller 414 is located at an inner side of the first pushing portion 417, the first folding roller 414 is coaxially disposed with the first pushing portion 417, the second folding roller 415 penetrates through the first pushing portion 417 and is movably connected with the first pushing portion 417, the first pushing portion 417 is connected with a first gear 419, the moving seat 412 is further connected with a second rotation driving source 418, the second rotation driving source 418 is a motor, an output shaft of the second rotation driving source 418 is connected with a second gear 4110, and the second gear 4110 is meshed with the first gear 419.
The second automatic telescoping part 411 is started to drive the movable seat 412 to move, so that the movable seat 412 drives the first folding roller 414 and the second folding roller 415 to move, and therefore the first folding roller 414 and the second folding roller 415 move synchronously and in the same direction with the battery diaphragm, meanwhile, the second rotation driving source 418 is started to drive the meshing transmission between the second gear 4110 and the first gear 419, so that the first pushing part 417 is driven to rotate, the first pushing part 417 pushes the second folding roller 415 to move downwards along the guide opening 4121, and the battery diaphragm is pulled to fold (as shown in fig. 8), and at the moment, the battery diaphragm on the receiving roller 13 is pulled through the second folding roller 415, so that the receiving roller 13 is accelerated to discharge.
With continued reference to fig. 1 and fig. 4 to fig. 9, the conveying assembly 42 includes two connecting frames 421, the two connecting frames 421 are respectively located above and below the battery diaphragm, and the connecting frames 421 below are connected to the mounting frame 11, the connecting frames 421 above are connected to the supporting arm 21, the left ends of the two connecting frames 421 are all rotationally connected with the driving roller 423, the right ends of the two connecting frames 421 are all rotationally connected with the driven roller 424, the two connecting frames 421 are all connected with the third rotation driving source 422, the third rotation driving source 422 is a motor, the output shaft of the third rotation driving source 422 is connected with the driving roller 423, a conveying belt 425 is connected between the driving roller 423 and the driven roller 424 on the same connecting frame 421 in a transmission manner, the two conveying belts 425 are respectively located at the top and the bottom of the battery diaphragm, the battery diaphragm can be clamped and conveyed through the two conveying belts 425, and the second rotation driving source 418 is started to drive the driving roller 423, the driven roller 424 and the conveying belt 425 on the two sides of the battery diaphragm are clamped and conveyed through the conveying belts 425 on the two groups of conveying assembly 42 until the battery diaphragm is dried.
After the folding part of the battery diaphragm moves between the two conveying belts 425, the third automatic telescopic part 416 is started to drive the movable part 413 to move, the movable part 413 drives the first folding roller 414 and the second folding roller 415 to be separated from the folding part of the battery diaphragm, and the second automatic telescopic part 411 drives the folding assembly 41 to reset so as to wait for folding the blank section of the next battery diaphragm, and simultaneously, the conveying belts 425 on the two groups of conveying assemblies 42 clamp and convey the folded battery diaphragm to the coating mechanism 2, so that the coating part 23 does not need interval coating, the reserved blank section of the battery diaphragm does not need to pass through the coating part 23, the coating efficiency of the battery diaphragm is improved, and the intermittent coating of the coating mechanism 2 is prevented from influencing the coating effect of the battery diaphragm.
As shown in fig. 1, 4 and 10, the pushing mechanism 5 comprises a connecting arm 51 connected to the box 31, a mounting groove 511 is provided on the connecting arm 51, a lifting part 52 is inserted on the inner bottom wall of the mounting groove 511, the bottom of the lifting part 52 penetrates through the bottom of the connecting arm 51 and is rotatably connected with a second pushing part 53, the second pushing part 53 contacts with the top of the battery diaphragm, the inner top wall of the mounting groove 511 is connected with a detecting part 54, the detecting part 54 is a distance detector for detecting the distance between the inner top wall of the mounting groove 511 and the top of the lifting part 52, a control part is connected to the connecting arm 51, the detecting part 54 and the receiving roller 13 are both connected with the control part, after the folding part of the battery diaphragm is coated, dried and separated from the conveying component 42, the battery diaphragm is pressed down by the gravity of the second pushing part 53 and the lifting part 52, the folding part of the battery diaphragm is unfolded, the phenomenon of drawing of paint on the unfolded battery diaphragm is avoided, at the moment, the detected data are transmitted to the control part by the detection part 54, after the detected data are larger than a set value, the control part transmits signals to the first rotary driving source 19, the first rotary driving source 19 accelerates the rotation speed of the material receiving roller 13, the material receiving roller 13 accelerates the rolling speed of the coated and dried battery diaphragm, when the battery diaphragm is accelerated to be rolled, the battery diaphragm gradually pushes the second pushing part 53 to move upwards, after the detected data are smaller than the set value, the control part transmits signals to the first rotary driving source 19, and the first rotary driving source 19 slows down the rotation speed of the material receiving roller 13 to the initial uniform rotation.
The invention also provides a coating method of the diaphragm for producing the sodium ion battery, which comprises the following steps:
s1: activating the conveyor belt 425 on the two groups of conveyor assemblies 42 to pull the battery diaphragm on the material conveying mechanism 1 to move;
The method comprises the following steps: starting a second rotation driving source 418 to drive transmission among a driving roller 423, a driven roller 424 and a conveying belt 425, clamping and conveying two side edges of a battery diaphragm through the conveying belts 425 on the two groups of conveying assemblies 42, and at the moment, driving a discharging roller 12 to rotate by pulling the battery diaphragm, so that the battery diaphragm is unreeled;
s2: the second folding roller 415 is started to rotate around the first folding roller 414, and the blank section of the battery diaphragm is folded by the second folding roller 415 and the first folding roller 414;
The method comprises the following steps: the second automatic telescoping part 411 is started to drive the movable seat 412 to move, so that the movable seat 412 drives the first folding roller 414 and the second folding roller 415 to move, and therefore the first folding roller 414 and the second folding roller 415 move synchronously and in the same direction with the battery diaphragm, meanwhile, the second rotation driving source 418 is started to drive the meshing transmission between the second gear 4110 and the first gear 419, so that the first pushing part 417 is driven to rotate, the first pushing part 417 pushes the second folding roller 415 to move downwards along the guide opening 4121, and the battery diaphragm is pulled to fold, and at the moment, the battery diaphragm on the material receiving roller 13 is pulled by the second folding roller 415, so that the material receiving roller 13 is accelerated to discharge;
s3: after the folded battery diaphragm blank section moves to the two groups of conveying components 42, clamping and conveying the folded battery diaphragm blank section through conveying belts 425 on the two groups of conveying components 42;
The method comprises the following steps: after the folding part of the battery diaphragm moves between the two conveying belts 425, a third automatic telescopic part 416 is started to drive a movable part 413 to move, the movable part 413 drives a first folding roller 414 and a second folding roller 415 to be separated from the folding part of the battery diaphragm, the second automatic telescopic part 411 drives a folding assembly 41 to reset so as to wait for folding a blank section of the next battery diaphragm, and meanwhile, the folded battery diaphragm is clamped and conveyed to the coating mechanism 2 through the conveying belts 425 on the two groups of conveying assemblies 42;
S4: starting a coating mechanism 2 to coat the battery separator;
Starting a material conveying device, conveying materials into a coating part 23 through a material conveying hose, coating a battery diaphragm by the coating part 23, connecting a distance sensor to the coating part 23, detecting the distance between the coating part 23 and the battery diaphragm, connecting a controller to a supporting arm 21, connecting the distance sensor and a first automatic telescopic part 22 to the controller, detecting the distance between the coating part 23 and the battery diaphragm through the distance sensor, transmitting detected data to the controller, and starting the first automatic telescopic part 22 to drive the coating part 23 to move up and down by the controller, so that the distance between the coating part 23 and the battery diaphragm is kept constant;
s5: starting a drying mechanism 3 to dry the coated battery diaphragm;
the method comprises the following steps: starting the heating part 32 to generate heat and heat the air in the box 31, and drying the coated battery diaphragm by the hot air in the box 31;
s6: the material conveying mechanism 1 winds the dried battery diaphragm;
the method comprises the following steps: the first rotation driving source 19 is started to drive the material receiving roller 13 to rotate at a constant speed, the dried battery diaphragm is rolled up through the rotating material receiving roller 13, after the folding part of the battery diaphragm is coated, dried and separated from the conveying component 42, the battery diaphragm is pressed down by the gravity of the second pushing part 53 and the lifting part 52, so that the folding part of the battery diaphragm is unfolded, at the moment, the detected data is transmitted to the control part through the detecting part 54, after the detected data is larger than a set value, the signal is transmitted to the first rotation driving source 19 through the control part, the rotation speed of the material receiving roller 13 is accelerated through the first rotation driving source 19, so that the rolling speed of the battery diaphragm after coating and drying is accelerated, the second pushing part 53 is gradually pushed up through the battery diaphragm when the battery diaphragm is accelerated to be rolled up, and after the detected data is smaller than the set value, the signal is transmitted to the first rotation driving source 19 through the control part, and the rotation speed of the material receiving roller 13 is slowed down to the initial uniform rotation through the first rotation driving source 19.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. Diaphragm coating device is used in sodium ion battery production, including conveying material mechanism (1), coating mechanism (2) and stoving mechanism (3), its characterized in that still includes:
the folding conveying mechanism (4) is connected to the material conveying mechanism (1), the folding conveying mechanism (4) comprises two movable seats (412), the two movable seats (412) are respectively arranged on the front side and the rear side of the material conveying mechanism (1), the movable seats (412) can move left and right, a first folding roller (414) and a second folding roller (415) are arranged on the movable seats (412), the first folding roller (414) is arranged at the bottom of a battery diaphragm, the second folding roller (415) is arranged above the battery diaphragm, and the second folding roller (415) can rotate around the axis of the first folding roller (414) so as to fold a blank section reserved for the battery diaphragm;
The folding conveying mechanism (4) further comprises two groups of conveying assemblies (42), the two groups of conveying assemblies (42) are respectively positioned at the front side and the rear side of the battery diaphragm, the conveying assemblies (42) comprise two conveying belts (425), the two conveying belts (425) are respectively positioned at the top and the bottom of the battery diaphragm, and the two conveying belts (425) can clamp and convey the folded battery diaphragm;
The movable seat (412) is rotatably connected with a first pushing part (417), and the second folding roller (415) penetrates through the first pushing part (417) and is movably connected with the first pushing part;
The folding conveying mechanism (4) further comprises two second automatic telescopic parts (411) which are respectively connected to the front side and the rear side of the material conveying mechanism (1), and telescopic ends of the two second automatic telescopic parts (411) are respectively connected with the two movable seats (412);
the utility model discloses a battery pack, including movable seat (412), first folding roller (414), second folding roller (415), fixed seat (412) are gone up in grafting first folding roller (414) on movable seat (412), have seted up guiding mouth (4121) on movable seat (412), guiding mouth (4121) are the arc form, and the centre of a circle of guiding mouth (4121) and first folding roller (414) is located same axis, one end that battery diaphragm was kept away from to first folding roller (414) is connected with movable part (413), annular spacing groove (4131) has been seted up on movable part (413), one end spacing sliding connection of second folding roller (415) is in annular spacing groove (4131).
2. The separator coating device for sodium ion battery production according to claim 1, wherein a third automatic expansion and contraction part (416) is connected to the movable base (412), and an expansion end of the third automatic expansion and contraction part (416) is connected to the movable part (413).
3. The separator coating device for sodium ion battery production according to claim 1, wherein the first pushing portion (417) is connected with a first gear (419), the moving seat (412) is further connected with a second rotation driving source (418), an output shaft of the second rotation driving source (418) is connected with a second gear (4110), and the second gear (4110) is in meshed connection with the first gear (419).
4. The membrane coating device for sodium ion battery production according to claim 1, wherein the conveying assembly (42) comprises two connecting frames (421), the left ends of the two connecting frames (421) are respectively and rotatably connected with a driving roller (423), the right ends of the two connecting frames (421) are respectively and rotatably connected with a driven roller (424), the two connecting frames (421) are respectively and rotatably connected with a third rotation driving source (422), an output shaft of the third rotation driving source (422) is connected with the driving roller (423), and the conveying belt (425) is in transmission connection between the driving roller (423) and the driven roller (424).
5. The membrane coating device for sodium ion battery production according to claim 1, wherein the drying mechanism (3) is connected with a pushing mechanism (5), the pushing mechanism (5) comprises a connecting arm (51), an installation groove (511) is formed in the connecting arm (51), a lifting part (52) is inserted into the inner bottom wall of the installation groove (511), and the bottom of the lifting part (52) penetrates through the bottom of the connecting arm (51) and is rotationally connected with a second pushing part (53).
6. The separator coating device for sodium ion battery production according to claim 5, wherein the inner top wall of the installation groove (511) is connected with a detecting part (54) for detecting the ascending and descending distance of the ascending and descending part (52), and the connecting arm (51) is connected with a control part.
7. A method for coating a separator for sodium ion battery production, characterized by using the separator coating device for sodium ion battery production according to any one of the above claims 1 to 6, comprising the steps of:
S1: starting the conveyor belts (425) on the two groups of conveyor assemblies (42), and pulling the battery diaphragm on the material conveying mechanism (1) to move;
S2: the second folding roller (415) is started to rotate around the first folding roller (414), and the blank section of the battery diaphragm is folded by the second folding roller (415) and the first folding roller (414);
S3: after the folded battery diaphragm blank section moves to the two groups of conveying components (42), clamping and conveying the folded battery diaphragm blank section through conveying belts (425) on the two groups of conveying components (42);
S4: starting a coating mechanism (2) to coat the battery separator;
s5: starting a drying mechanism (3) to dry the coated battery diaphragm;
S6: and starting a material conveying mechanism (1) to wind up the dried battery diaphragm.
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| CN202410711425.7A CN118287345B (en) | 2024-06-04 | 2024-06-04 | Diaphragm coating device for sodium ion battery production and coating method thereof |
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| CH427482A (en) * | 1964-04-01 | 1966-12-31 | Pembroke Carton & Printing Co | Machine for the production of lined folding carton boxes or bags |
| DE3835953A1 (en) * | 1988-10-21 | 1990-04-26 | Hunkeler Ag Jos | Process and compression-folding machine for the folding and simultaneous adhesive bonding of form letters |
| CN2764499Y (en) * | 2004-12-06 | 2006-03-15 | 北京七星华创电子股份有限公司 | Intermittent control device for coating machine |
| KR100928316B1 (en) * | 2007-07-06 | 2009-11-25 | 삼성중공업 주식회사 | Automatic bonding device |
| WO2015162697A1 (en) * | 2014-04-22 | 2015-10-29 | エリーパワー株式会社 | Secondary-battery production method and production device |
| JP6906194B2 (en) * | 2018-02-23 | 2021-07-21 | パナソニックＩｐマネジメント株式会社 | Battery plate manufacturing method and coating equipment |
| KR102702689B1 (en) * | 2018-09-06 | 2024-09-05 | 주식회사 엘지에너지솔루션 | Battery cell folding gripper and battery cell folding device |
| JP7596683B2 (en) * | 2020-09-18 | 2024-12-10 | 京セラドキュメントソリューションズ株式会社 | Sheet folding device and sheet post-processing device equipped with same |
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| CN104069984A (en) * | 2013-03-27 | 2014-10-01 | 大日本网屏制造株式会社 | Intermittent coating apparatus and coating film forming system |
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