CN117019710B - Oil removing device and method for lithium battery diaphragm casting piece - Google Patents
Oil removing device and method for lithium battery diaphragm casting piece Download PDFInfo
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- CN117019710B CN117019710B CN202311271901.XA CN202311271901A CN117019710B CN 117019710 B CN117019710 B CN 117019710B CN 202311271901 A CN202311271901 A CN 202311271901A CN 117019710 B CN117019710 B CN 117019710B
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- oil
- lithium battery
- battery diaphragm
- strip
- scraping plate
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 89
- 238000005266 casting Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007790 scraping Methods 0.000 claims abstract description 120
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of lithium battery processing, and discloses an oil removing device and method for a lithium battery diaphragm casting piece, wherein the oil removing device comprises the following steps of; the device comprises a box body and a strip-shaped shell, wherein the strip-shaped shell is fixedly arranged on one side of the box body, a rectangular hole is formed in the bottom end of one side of the strip-shaped shell, and the strip-shaped shell is communicated with the inner cavity of the box body through the rectangular hole; the oil scraping recovery mechanism is arranged in the inner cavity of the strip-shaped shell; the oil absorption assembly is arranged at the top end of the inner cavity of the box body; the lithium battery diaphragm casting piece penetrates through the strip-shaped shell and the inner cavity of the box body. According to the oil removing device and method for the lithium battery diaphragm casting piece, the oil films on two sides of the lithium battery diaphragm casting piece can be scraped and removed through the first oil scraping plate and the second oil scraping plate respectively through the oil scraping recovery mechanism, and oil film resources are effectively utilized through collection and recovery of the oil films in the scraping process, so that cost and resources are saved.
Description
Technical Field
The invention relates to the technical field of lithium battery processing, in particular to an oil removing device and method for a lithium battery diaphragm casting piece.
Background
In the structure of the lithium battery, the diaphragm is one of key inner layer components, the performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, the characteristics of capacity, circulation, safety and the like of the battery are directly influenced, the diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery, the diaphragm has the main role of separating the positive electrode from the negative electrode of the battery and preventing the contact of the two electrodes from being short-circuited, and in addition, the diaphragm has the function of enabling electrolyte ions to pass through; the preparation method of the lithium battery diaphragm cast sheet is divided into a dry method and a wet method, the wet method is also called a phase separation method or a thermal phase separation method, liquid hydrocarbon or some micromolecular substances are mixed with polyolefin resin, heated and melted to form a uniform mixture, then cooled and subjected to phase separation, pressed to obtain a diaphragm, then the diaphragm is heated to be close to the melting point temperature, subjected to biaxial stretching to orient molecular chains, finally kept warm for a certain time, residual solvents are eluted and extracted by volatile substances, so that a microporous membrane material which is mutually communicated is obtained, but the diaphragm cast sheet obtained through stretching is covered with an oil film, so that during extraction treatment, a certain amount of extraction solvents are consumed to increase the production cost, the extraction time is prolonged, the extraction pore-forming effect is influenced, and the quality of the diaphragm is influenced.
At present, when the lithium battery diaphragm casting piece is deoiled, an organic solvent (such as acetone and ether solvent) is generally used for soaking and flushing the diaphragm, the solvent can help to dissolve and remove grease on the surface of the diaphragm, but the operation is complex, drying is also needed, and a removed oil film is formed by an additive or a surface treating agent, so that the lithium battery diaphragm casting piece has certain recycling value, and resources are wasted by directly dissolving and removing the oil film, and the cost consumption is high.
Disclosure of Invention
The invention aims to provide an oil removing device and method for a lithium battery diaphragm casting piece, which are used for solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: an oil removal device for lithium battery diaphragm casting sheets, comprising;
a case;
the strip-shaped shell is fixedly arranged on one side of the box body, a rectangular hole is formed in the bottom end of one side of the strip-shaped shell, and the strip-shaped shell is communicated with the inner cavity of the box body through the rectangular hole;
the oil scraping recovery mechanism is arranged in the inner cavity of the strip-shaped shell;
the oil absorption assembly is arranged at the top end of the inner cavity of the box body;
the lithium battery diaphragm casting piece penetrates through the strip-shaped shell and the inner cavity of the box body.
The oil scraping recovery mechanism comprises:
the first driving roller is rotationally arranged at the top end of the inner cavity of the strip-shaped shell along the front-back direction;
the second driving roller is rotationally arranged at the bottom end of the inner cavity of the strip-shaped shell along the front-back direction;
the first oil scraping plate is rotatably arranged at the top end of the inner cavity of the strip-shaped shell;
the second oil scraping plate is rotatably arranged at the bottom end of the inner cavity of the strip-shaped shell;
the top ends of the first oil scraping plate and the second oil scraping plate are fixedly provided with scraping strips, and the scraping strips positioned on the first oil scraping plate are in contact with the lithium battery diaphragm casting piece;
the base is fixedly arranged at the bottom end of one side of the box body;
the oil storage tank is placed at the top end of the base;
the left end and the right end of the front side and the rear side of the strip-shaped shell are fixedly provided with oil outlet pipes, the left side and the right side of the oil outlet pipes extend into the inner cavities of the strip-shaped shell and are respectively communicated with the inner cavities of the second oil scraping plate and the first oil scraping plate, and one end of each oil outlet pipe is communicated with the inner cavity of the oil storage tank.
Preferably, the shape of the first oil scraping plate and the second oil scraping plate is L-shaped, and the front side and the rear side of the first oil scraping plate and the rear side of the second oil scraping plate are fixedly provided with oil baffles.
Preferably, the oil scraping recovery mechanism further comprises:
the torsion spring is arranged between the first oil scraping plate and the inner cavity of the strip-shaped shell;
the first hydraulic cylinder is rotationally arranged at the bottom end of the inner cavity of the strip-shaped shell through a pin shaft, and the top end of the first hydraulic cylinder is rotationally arranged at one side of the bottom end of the second oil scraping plate through a pin shaft;
the strip-shaped columns are fixedly arranged at the top ends of the front side and the rear side of the second oil scraping plate;
the sliding block is arranged on the inner side of the strip-shaped column, and the sliding block is inserted into the inner cavity of the sliding groove;
the compaction roller is rotationally arranged between the two sliding blocks;
the spring is fixedly arranged between the sliding block and the inner cavity of the sliding groove.
Preferably, the first oil scraping plate and the second oil scraping plate are respectively positioned at the left side and the right side of the lithium battery diaphragm casting piece.
Preferably, the pinch roller is closely attached to one side of the second oil scraping plate.
Preferably, the oil absorbing assembly includes:
the rotating shafts are rotatably arranged on the left side and the right side of the top end of the inner cavity of the box body;
the oil suction rollers are sleeved on the outer wall of the rotating shaft, and the lithium battery diaphragm casting sheet sequentially bypasses the two oil suction rollers and extends out through one side of the box body;
the push plate is sleeved with the outer wall of the rotating shaft, and the front side of the oil suction roller is rotationally connected with the rear side of the push plate through a bearing;
the second hydraulic cylinder is fixedly arranged on the front side of the box body, and the rear side of the second hydraulic cylinder extends into the inner cavity of the box body and is fixedly connected with the front side of the push plate.
Preferably, the two oil absorbing rollers are arranged in a vertically staggered mode, and the lithium battery diaphragm casting sheet bypasses the outer wall of the lower oil absorbing roller and winds out through the top end of the outer wall of the upper oil absorbing roller.
The application method of the oil removal device for the lithium battery diaphragm casting piece comprises the following steps:
step one: the lithium battery diaphragm casting piece penetrates through the inner cavities of the strip-shaped shell and the box body, the lithium battery diaphragm casting piece is controlled to be transferred to one side, and when passing between the first driving roller and the first oil scraping plate, the first oil scraping plate drives the scraping strip to be tightly pressed on the outer wall of the first driving roller under the elastic force of the torsion spring, so that the scraping strip scrapes an oil film on one side of the lithium battery diaphragm casting piece, scraped oil flows into the first oil scraping plate, and flows into an oil storage tank through the oil outlet pipe to be collected;
step two: starting a first hydraulic cylinder to enable the first hydraulic cylinder to push a second oil scraping plate to rotate to one side, so that the scraping bar can press a lithium battery diaphragm casting piece on the other side, tension of the lithium battery diaphragm casting piece in transmission can be adjusted, a sliding block can be pulled to move in a sliding groove under the action of elasticity of a spring, a compression roller is compressed on one side of the scraping bar, the lithium battery diaphragm casting piece is tightly attached to one side of the scraping bar, and under the support of the compression roller, an oil film on the other side of the lithium battery diaphragm casting piece is scraped by the scraping bar on the second oil scraping plate and flows into an oil storage tank through an oil outlet pipe to be collected;
step three: the lithium battery diaphragm cast piece after oil film scraping is transmitted to the two oil absorption rollers through the second driving roller so as to thoroughly adsorb and clean residual oil stains on the upper side and the lower side of the outer wall of the lithium battery diaphragm cast piece, and the second hydraulic cylinder is started so that the second hydraulic cylinder pushes the push plate until the push plate drives the oil absorption rollers to move towards the rear side under the support of the rotating shaft, so that the lithium battery diaphragm cast piece wound on the outer wall of the oil absorption rollers is contacted with one side of the outer wall of the oil absorption rollers.
The oil removing device and method for the lithium battery diaphragm casting sheet provided by the invention have the beneficial effects that:
1. according to the invention, the oil films on two sides of the lithium battery diaphragm casting piece can be scraped and removed through the first oil scraping plate and the second oil scraping plate respectively by the oil scraping recovery mechanism, and through the collection and recovery of the oil films in the scraping process, the effective utilization of oil film resources is realized, the cost and the resources are saved, and the tightness of the lithium battery diaphragm casting piece is adjusted by adjusting the position of the second oil scraping plate, so that the proper use state of the diaphragm is ensured.
2. According to the invention, the oil film of the lithium battery diaphragm casting sheet can be thoroughly cleaned by arranging the oil suction assembly, and oil stains are effectively removed by moving the oil suction roller, so that the surface of the diaphragm is clean, and the operation is simple.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front cross-sectional view of the bar-shaped case of the present invention.
Fig. 3 is a top cross-sectional view of a bar of the present invention.
Fig. 4 is a schematic structural view of a first wiper plate according to the present invention.
Fig. 5 is a top cross-sectional view of the case of the present invention.
Fig. 6 is a front cross-sectional view of the case of the present invention.
In the figure: 1. a case; 2. a bar-shaped shell; 3. a rectangular hole; 4. a scraping oil recovery mechanism; 41. a first driving roller; 42. a second driving roller; 43. a first oil scraper; 44. a second oil scraper; 45. scraping the strip; 46. a base; 47. an oil storage tank; 48. an oil outlet pipe; 49. an oil baffle plate; 410. a torsion spring; 411. a first hydraulic cylinder; 412. a bar-shaped column; 413. a slide block; 414. a chute; 415. a pinch roller; 416. a spring; 5. an oil absorbing assembly; 51. a rotating shaft; 52. an oil suction roller; 53. a push plate; 54. a second hydraulic cylinder; 6. lithium battery separator casting.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: an oil removing device and method for lithium battery diaphragm casting sheets are provided, and the oil removing device comprises; the device comprises a box body 1, a strip-shaped shell 2, a rectangular hole 3, a scraping oil recovery mechanism 4, an oil absorption assembly 5 and a lithium battery diaphragm casting piece 6;
the strip-shaped shell 2 is fixedly arranged on one side of the box body 1, a rectangular hole 3 is formed in the bottom end of one side of the strip-shaped shell 2, the strip-shaped shell 2 is communicated with the inner cavity of the box body 1 through the rectangular hole 3, the oil scraping recovery mechanism 4 is arranged in the inner cavity of the strip-shaped shell 2, the oil absorption assembly 5 is arranged on the top end of the inner cavity of the box body 1, and the lithium battery diaphragm casting piece 6 penetrates through the strip-shaped shell 2 and the inner cavity of the box body 1.
As a preferred embodiment, the wiper oil recovery mechanism 4 includes: the first driving roller 41, the second driving roller 42, the first oil scraping plate 43, the second oil scraping plate 44, the scraping strip 45, the base 46, the oil storage tank 47, the oil outlet pipe 48, the oil baffle 49, the torsion spring 410, the first hydraulic cylinder 411, the bar column 412, the sliding block 413, the sliding groove 414, the pressing roller 415 and the spring 416;
in order to scrape lithium battery diaphragm cast piece 6, first driving roller 41 rotates along the front and back direction to set up on the inner chamber top of bar shell 2, second driving roller 42 rotates along the front and back direction to set up on the inner chamber bottom of bar shell 2, first oil scraping plate 43 rotates to set up on the inner chamber top of bar shell 2, second oil scraping plate 44 rotates to set up on the inner chamber bottom of bar shell 2, the top of first oil scraping plate 43 and second oil scraping plate 44 is all fixed to be provided with scraping strip 45, and be located the scraping strip 45 of first oil scraping plate 43 and lithium battery diaphragm cast piece 6 and contact.
In order to collect the scraped oil film, the base 46 is fixedly arranged at one side bottom end of the tank body 1, the oil storage tank 47 is arranged at the top end of the base 46, the oil outlet pipes 48 are fixedly arranged at the left and right ends of the front side and the rear side of the strip-shaped shell 2, the left and right oil outlet pipes 48 extend into the inner cavity of the strip-shaped shell 2 and are respectively communicated with the second oil scraping plate 44 and the inner cavity of the first oil scraping plate 43, and one end of the oil outlet pipe 48 is communicated with the inner cavity of the oil storage tank 47.
As a preferred solution, the first oil scraper 43 and the second oil scraper 44 are L-shaped, and the oil baffle 49 is fixedly disposed on both front and rear sides of the first oil scraper 43 and the second oil scraper 44.
In order to limit the first oil scraping plate 43, the torsion spring 410 is arranged between the first oil scraping plate 43 and the inner cavity of the strip-shaped shell 2, and under the action of the elasticity of the torsion spring 410, the first oil scraping plate 43 drives the scraping strip 45 to be tightly pressed on the outer wall of the first driving roller 41, so that the scraping strip 45 scrapes an oil film on one side of the lithium battery diaphragm casting piece 6.
In order to adjust the angle of the second oil scraping plate 44, the first hydraulic cylinder 411 is rotatably arranged at the bottom end of the inner cavity of the strip-shaped shell 2 through a pin shaft, the top end of the first hydraulic cylinder 411 is rotatably arranged at one side of the bottom end of the second oil scraping plate 44 through a pin shaft, and the first hydraulic cylinder 411 can push the second oil scraping plate 44 to rotate to one side, so that the scraping strip 45 can press the lithium battery diaphragm casting piece 6 at the other side, and the tension degree of the lithium battery diaphragm casting piece 6 in transmission can be adjusted.
In order to enable the lithium battery diaphragm casting piece 6 to be in close contact with the scraping strips 45 on the second scraping plate 44, strip-shaped columns 412 are fixedly arranged at the top ends of the front side and the rear side of the second scraping plate 44, sliding grooves 414 are formed in the inner sides of the strip-shaped columns 412, sliding blocks 413 are inserted into inner cavities of the sliding grooves 414, pressing rollers 415 are rotatably arranged between the two sliding blocks 413, springs 416 are fixedly arranged between the sliding blocks 413 and the inner cavities of the sliding grooves 414, and the sliding blocks 413 can be pulled to move in the sliding grooves 414 under the action of elasticity of the springs 416 so as to press the pressing rollers 415 on one sides of the scraping strips 45.
Preferably, the first oil scraping plate 43 and the second oil scraping plate 44 are respectively located at the left side and the right side of the lithium battery diaphragm casting piece 6, so that oil films can be scraped at the same time at the left side and the right side of the lithium battery diaphragm casting piece.
Preferably, the pressing roller 415 is closely attached to one side of the second wiper 44, so that the lithium battery separator casting 6 is closely attached to one side of the wiper strip 45.
Preferably, further, the oil absorbing assembly 5 includes: a rotating shaft 51, an oil suction roller 52, a push plate 53 and a second hydraulic cylinder 54;
in order to thoroughly remove an oil film on the lithium battery diaphragm casting sheet 6, a rotating shaft 51 is rotatably arranged on the left side and the right side of the top end of the inner cavity of the box body 1, the oil suction rollers 52 are sleeved on the outer wall of the rotating shaft 51, the lithium battery diaphragm casting sheet 6 sequentially bypasses the two oil suction rollers 52 and extends out from one side of the box body 1, the push plate 53 is sleeved on the outer wall of the rotating shaft 51, the front side of the oil suction rollers 52 is rotatably connected with the rear side of the push plate 53 through a bearing, a second hydraulic cylinder 54 is fixedly arranged on the front side of the box body 1, the rear side of the second hydraulic cylinder 54 extends into the inner cavity of the box body 1 and is fixedly connected with the front side of the push plate 53, and the second hydraulic cylinder 54 pushes the push plate 53 until the push plate 53 drives the oil suction rollers 52 to move towards the rear side under the support of the rotating shaft 51, so that the lithium battery diaphragm casting sheet 6 wound on the outer wall of the oil suction rollers 52 contacts with one side of the outer wall of the oil suction rollers 52.
As a preferable scheme, the two oil suction rollers 52 are arranged up and down in a staggered manner, and the lithium battery diaphragm casting sheet 6 bypasses the outer wall of the lower oil suction roller 52 and winds out through the top end of the outer wall of the upper oil suction roller 52 so as to adsorb oil films on two sides of the lithium battery diaphragm casting sheet 6.
The application method of the oil removal device for the lithium battery diaphragm casting piece comprises the following steps:
step one: the lithium battery diaphragm casting piece 6 passes through the inner cavities of the strip-shaped shell 2 and the box body 1, the lithium battery diaphragm casting piece 6 is controlled to be transferred to one side, when the lithium battery diaphragm casting piece 6 passes between the first driving roller 41 and the first oil scraping plate 43, the first oil scraping plate 43 drives the scraping strip 45 to be tightly pressed on the outer wall of the first driving roller 41 under the elastic force of the torsion spring 410, so that the scraping strip 45 scrapes an oil film on one side of the lithium battery diaphragm casting piece 6, and scraped oil flows into the first oil scraping plate 43 and flows into the oil storage tank 47 through the oil outlet pipe 48 to be collected;
step two: the first hydraulic cylinder 411 is started to enable the first hydraulic cylinder 411 to push the second oil scraping plate 44 to rotate to one side, so that the scraping strip 45 can be used for pressing the lithium battery diaphragm casting piece 6 on the other side, tension of the lithium battery diaphragm casting piece 6 in transmission can be adjusted, the sliding block 413 can be pulled to move in the sliding groove 414 under the elastic force of the spring 416, the pressing roller 415 is pressed on one side of the scraping strip 45, the lithium battery diaphragm casting piece 6 is tightly attached on one side of the scraping strip 45, and under the support of the pressing roller 415, the scraping strip 45 on the second oil scraping plate 44 is used for scraping an oil film on the other side of the lithium battery diaphragm casting piece 6 and flows into the oil storage tank 47 through the oil outlet pipe 48 to be collected, so that the oil film can be removed, the oil film can be recycled, and cost and resources are saved;
step three: the lithium battery diaphragm casting sheet 6 after oil film scraping is transferred to the two oil suction rollers 52 through the second driving roller 42, so that residual oil stains on the upper side and the lower side of the outer wall of the lithium battery diaphragm casting sheet 6 are thoroughly adsorbed and cleaned, the second hydraulic cylinder 54 is started, the second hydraulic cylinder 54 pushes the push plate 53 until the push plate 53 drives the oil suction rollers 52 to move towards the rear side under the support of the rotating shaft 51, and the lithium battery diaphragm casting sheet 6 wound on the outer wall of the oil suction rollers 52 is contacted with one side of the outer wall of the oil suction rollers 52, so that the use efficiency of the oil suction rollers 52 is improved, the oil removal effect is improved, and wide popularization is facilitated.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A deoiling device for lithium cell diaphragm cast piece, its characterized in that: comprises the following steps of;
a case (1);
the strip-shaped shell (2) is fixedly arranged on one side of the box body (1), a rectangular hole (3) is formed in the bottom end of one side of the strip-shaped shell (2), and the strip-shaped shell (2) is communicated with the inner cavity of the box body (1) through the rectangular hole (3);
the oil scraping recovery mechanism (4) is arranged in the inner cavity of the strip-shaped shell (2);
the oil absorption assembly (5) is arranged at the top end of the inner cavity of the box body (1);
the lithium battery diaphragm casting piece (6) penetrates through the inner cavities of the strip-shaped shell (2) and the box body (1);
the oil scraping recovery mechanism (4) comprises:
the first driving roller (41) is rotationally arranged at the top end of the inner cavity of the strip-shaped shell (2) along the front-back direction;
the second driving roller (42) is rotationally arranged at the bottom end of the inner cavity of the strip-shaped shell (2) along the front-back direction;
the first oil scraping plate (43) is rotatably arranged at the top end of the inner cavity of the strip-shaped shell (2);
the second oil scraping plate (44) is rotatably arranged at the bottom end of the inner cavity of the strip-shaped shell (2);
the scraping strips (45) are fixedly arranged at the top ends of the first scraping plate (43) and the second scraping plate (44), and the scraping strips (45) positioned on the first scraping plate (43) are in contact with the lithium battery diaphragm casting piece (6);
the base (46) is fixedly arranged at the bottom end of one side of the box body (1);
an oil tank (47) placed on the top end of the base (46);
the oil outlet pipe (48), both ends are all fixed to be provided with out oil pipe (48) around bar shell (2), and left and right sides go out oil pipe (48) extend into the inner chamber of bar shell (2) and respectively with the second scrape oil pan (44) with the inner chamber of first scrape oil pan (43) communicates with each other, go out oil pipe (48) one end with the inner chamber of oil storage tank (47) communicates with each other.
2. The oil removal device for the lithium battery diaphragm casting sheet according to claim 1, wherein the oil removal device comprises: the shape of the first oil scraping plate (43) and the second oil scraping plate (44) is L-shaped, and oil baffle plates (49) are fixedly arranged on the front side and the rear side of the first oil scraping plate (43) and the second oil scraping plate (44).
3. The oil removal device for the lithium battery diaphragm casting sheet according to claim 2, wherein: the oil scraping recovery mechanism (4) further comprises:
a torsion spring (410) arranged between the first oil scraping plate (43) and the inner cavity of the strip-shaped shell (2);
the first hydraulic cylinder (411) is rotationally arranged at the bottom end of the inner cavity of the strip-shaped shell (2) through a pin shaft, and the top end of the first hydraulic cylinder (411) is rotationally arranged at one side of the bottom end of the second oil scraping plate (44) through a pin shaft;
the strip-shaped columns (412) are fixedly arranged at the top ends of the front side and the rear side of the second oil scraping plate (44);
the sliding block (413), the inner side of the bar-shaped column (412) is provided with a sliding groove (414), and the inner cavity of the sliding groove (414) is inserted with the sliding block (413);
a pinch roller (415) rotatably disposed between the two sliders (413);
and the spring (416) is fixedly arranged between the sliding block (413) and the inner cavity of the sliding groove (414).
4. The oil removal device for the lithium battery diaphragm casting sheet according to claim 3, wherein: the first oil scraping plate (43) and the second oil scraping plate (44) are respectively positioned at the left side and the right side of the lithium battery diaphragm casting piece (6).
5. The oil removal device for the lithium battery diaphragm casting piece according to claim 4, wherein: the pressing roller (415) is closely attached to one side of the second oil scraping plate (44).
6. The oil removal device for the lithium battery diaphragm casting piece according to claim 5, wherein the oil removal device comprises: the oil absorbing assembly (5) comprises:
the rotating shafts (51) are rotatably arranged on the left side and the right side of the top end of the inner cavity of the box body (1);
the oil suction rollers (52) are sleeved on the outer wall of the rotating shaft (51), and the lithium battery diaphragm casting sheet (6) sequentially bypasses the two oil suction rollers (52) and extends out from one side of the box body (1);
the pushing plate (53) is sleeved with the outer wall of the rotating shaft (51), and the front side of the oil suction roller (52) is rotationally connected with the rear side of the pushing plate (53) through a bearing;
the second hydraulic cylinder (54) is fixedly arranged on the front side of the box body (1), and the rear side of the second hydraulic cylinder (54) extends into the inner cavity of the box body (1) and is fixedly connected with the front side of the push plate (53).
7. The oil removal device for the lithium battery diaphragm casting sheet according to claim 6, wherein: the two oil suction rollers (52) are arranged in an up-and-down staggered mode, and the lithium battery diaphragm casting sheet (6) bypasses the outer wall of the lower oil suction roller (52) and winds out through the top end of the outer wall of the upper oil suction roller (52).
8. The method for using the oil removal device for the lithium battery diaphragm casting piece, which is disclosed in claim 7, is characterized in that: the method comprises the following steps:
step one: the lithium battery diaphragm casting piece (6) passes through the inner cavities of the strip-shaped shell (2) and the box body (1), the lithium battery diaphragm casting piece (6) is controlled to be transferred to one side, when the lithium battery diaphragm casting piece (6) passes through the space between the first transmission roller (41) and the first oil scraping plate (43), under the elastic force of the torsion spring (410), the first oil scraping plate (43) drives the scraping strip (45) to be tightly pressed on the outer wall of the first transmission roller (41), so that the scraping strip (45) scrapes an oil film on one side of the lithium battery diaphragm casting piece (6), and scraped oil flows into the first oil scraping plate (43) and flows into the oil storage tank (47) for collection through the oil outlet pipe (48);
step two: starting a first hydraulic cylinder (411) to enable the first hydraulic cylinder (411) to push a second oil scraping plate (44) to rotate to one side, so that a scraping strip (45) can press a lithium battery diaphragm casting piece (6) on the other side, tension of the lithium battery diaphragm casting piece (6) in transmission can be adjusted, a sliding block (413) can be pulled to move in a sliding groove (414) under the action of elasticity of a spring (416), so that a pressing roller (415) is pressed on one side of the scraping strip (45), the lithium battery diaphragm casting piece (6) is tightly attached on one side of the scraping strip (45), and under the support of the pressing roller (415), an oil film on the other side of the lithium battery diaphragm casting piece (6) is scraped off by the scraping strip (45) on the second oil scraping plate (44) and flows into an oil storage tank (47) through an oil outlet pipe (48) to be collected;
step three: the lithium battery diaphragm casting piece (6) after oil film scraping is transferred to the two oil suction rollers (52) through the second driving roller (42) so as to thoroughly adsorb and clean residual oil stains on the upper side and the lower side of the outer wall of the lithium battery diaphragm casting piece (6), and the second hydraulic cylinder (54) is started so that the second hydraulic cylinder (54) pushes the push plate (53) until the push plate (53) drives the oil suction rollers (52) to move towards the rear side under the support of the rotating shaft (51), so that the lithium battery diaphragm casting piece (6) wound on the outer wall of the oil suction rollers (52) is contacted with one side of the outer wall of the oil suction rollers (52).
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| CN202311271901.XA CN117019710B (en) | 2023-09-28 | 2023-09-28 | Oil removing device and method for lithium battery diaphragm casting piece |
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| CN117019710B true CN117019710B (en) | 2023-12-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117276804B (en) * | 2023-11-23 | 2024-01-30 | 泰州衡川新能源材料科技有限公司 | Lithium battery diaphragm extraction and drying control device and control method |
| CN117463663B (en) * | 2023-12-25 | 2024-03-15 | 泰州衡川新能源材料科技有限公司 | Device and method for removing oil from membrane head of lithium battery diaphragm |
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