CN115889105B - Negative electrode slurry coating equipment and method - Google Patents
Negative electrode slurry coating equipment and method Download PDFInfo
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- CN115889105B CN115889105B CN202211453198.XA CN202211453198A CN115889105B CN 115889105 B CN115889105 B CN 115889105B CN 202211453198 A CN202211453198 A CN 202211453198A CN 115889105 B CN115889105 B CN 115889105B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a negative electrode slurry coating device and a method, which belong to the technical field of battery manufacturing, and comprise a base, a coil stock mechanism, a treatment box, a coating machine main body, a material pressing mechanism and a scraping and deslagging mechanism, wherein: the material winding mechanism comprises a main support frame and a pole piece roller, wherein the main support frame is fixedly connected to the upper end of the base, the pole piece roller is rotationally connected in the main support frame, and the pole piece is wound on the circumferential surface of the pole piece roller; this scheme is through scraping material, row's material and the mode of polishing to the polar plate processing, effectively gets rid of the protruding part on pole piece surface, makes the thick liquids coating more even to can discharge the thick liquids of striking off, in order to avoid the thick liquids adhesion of striking off at the inner wall of handling the case, improve the production quality of battery.
Description
Technical Field
The invention belongs to the technical field of battery manufacturing, and particularly relates to negative electrode slurry coating equipment and a method.
Background
The battery refers to a cup, a tank or other container or a part of space of a composite container which contains electrolyte solution and metal electrodes to generate current, and a device capable of converting chemical energy into electric energy is provided with a positive electrode and a negative electrode. Such as a solar cell. The performance parameters of the battery are mainly electromotive force, capacity, specific energy and resistance. The battery is used as an energy source, the current which has stable voltage, stable current, long-time stable power supply and little influence from the outside can be obtained, the battery has simple structure, convenient carrying, simple and easy charging and discharging operation, is not influenced by the outside climate and temperature, has stable and reliable performance, and plays a great role in various aspects in the life of the modern society.
In the prior art, a patent document with a part of battery pole piece coating is disclosed, and a Chinese patent with the application number of CN201911187809.9 discloses a lithium battery pole piece coating machine; comprises a machine body; the inner surface of the machine body is rotatably connected with a first winding rod in the inner wall of the rear side through a rotating shaft; the left side of the first winding rod is fixedly connected with a first baffle plate on the inner surface of the machine body; the left side of the first baffle is fixedly connected with an annular plate on the inner surface of the machine body; the left side of the annular plate is rotationally connected with evenly arranged rotary rods on the inner surface of the machine body through a rotary shaft; the left side of the second baffle is rotationally connected with uniformly arranged press rollers on the inner surface of the machine body through a rotating shaft; the left side of the press roller is rotationally connected with uniformly arranged coating heads on the inner surface of the machine body through a rotating shaft; the left side of the coating head is rotatably connected with a second winding rod on the inner surface of the machine body through a rotating shaft; the invention is mainly used for solving the problems that when the existing lithium battery pole piece coating machine is used for coating, the quality of the used pole piece is poor, so that the uneven coating and the different coating thickness of the pole piece can occur after the coating is finished.
Coating is one of the most important technological processes of lithium ion batteries, when some lithium battery pole piece coating machines in the market are used for coating, a protruding part exists on a pole piece with poor quality in the coating working process, so that slurry coating is uneven, the thickness of the pole piece is uneven, a scraping function is arranged in general equipment, the problem of different coating thicknesses is solved in a scraping mode, but the scraped part can remain in the equipment and easily adhere to the inside of the equipment and the back of the pole piece, the production quality of a battery is influenced, and therefore, the negative electrode slurry coating equipment and the negative electrode slurry coating method are provided.
Disclosure of Invention
The invention aims to provide a negative electrode slurry coating device and a negative electrode slurry coating method, which aim to solve the problems that in the prior art, a poor-quality pole piece is provided with a convex part in the coating work, so that slurry coating is uneven, the thickness of the pole piece is uneven, a scraping function is arranged in common equipment, and the problem of different coating thicknesses is solved in a scraping mode, but the scraped part is remained in the equipment and is easy to adhere to the inside of the equipment and the reverse side of the pole piece, so that the production quality of a battery is influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a negative electrode slurry coating apparatus comprising:
a base;
the material rolling mechanism comprises a main support frame and a pole piece roller, wherein the main support frame is fixedly connected to the upper end of the base, the pole piece roller is rotatably connected in the main support frame, and the pole piece is wound on the circumferential surface of the pole piece roller;
the treatment box is fixedly connected to the upper end of the base, a feeding hole is formed in one side, close to the main support frame, of the treatment box, a discharging hole is formed in one side, far away from the main support frame, of the treatment box, an upper interface is formed in the upper side of the treatment box, a plurality of third guide rollers are rotatably connected in the treatment box, and the pole piece enters the treatment box from the feeding hole and penetrates through the discharging hole by bypassing the plurality of third guide rollers;
the coating machine main body is fixedly connected to the upper end of the upper interface, and the lower side of the coating machine main body is provided with a coating nozzle which extends into the treatment box;
the material pressing mechanism is arranged between the pole piece roller and the processing box and is used for rolling the pole piece, so that the surface of the pole piece is smoother; and
the scraping and deslagging mechanism is arranged on the processing box and is used for scraping redundant paint on the surface of the pole piece, so that the surface of the pole piece is smoother, and the redundant paint is discharged.
As a preferable aspect of the present invention, the pressing mechanism includes:
the support plates are provided with two support plates which are fixedly connected to the upper end of the base;
the first heater is fixedly connected between the two support plates;
the two ends of the first guide roller are fixedly connected between the two support plates;
the press roll is positioned on the upper side of the first transition ring, and the pole piece passes through the space between the press roll and the first transition ring; and
the adjusting component is provided with two groups, and is arranged on two sides of the press roller to adjust the distance between the press roller and the first transition ring.
As a preferable scheme of the invention, each group of the adjusting assemblies comprises a first mounting frame, a bearing sleeve and a first electric push rod, wherein the first mounting frame is fixedly connected to the upper end of the base, one ends of the bearing sleeve and the first electric push rod are both rotationally connected to the first mounting frame, and the extension end of the first electric push rod is rotationally connected to the bearing sleeve; the compression roller is rotatably connected between the other ends of the two bearing sleeves.
As a preferable scheme of the invention, the scraping and deslagging mechanism comprises:
the hollowed-out table is fixedly connected between the inner walls of the processing box and positioned at the lower side of the coating nozzle, and the pole piece moves and bypasses the upper side of the hollowed-out table;
an extension shaft rotatably connected between inner walls of the processing box;
the scraper is fixedly connected to the circumferential surface of the extension shaft, and the tail end of the scraper is close to the surface of the pole piece;
the conveying bin is fixedly connected to the inner wall of the treatment box, one end of the conveying bin penetrates through the treatment box and extends outwards, an opening is formed in the upper side of the conveying bin, and a slag hole is fixedly connected to the lower side of the conveying bin;
the collecting box is fixedly connected to the upper end of the base, the upper end of the collecting box is provided with a collecting port, and the lower end of the slag outlet is fixedly connected to the collecting port;
the fine adjustment assemblies are provided with two groups and are arranged on two sides of the extension shaft, and the fine adjustment assemblies are used for fine adjustment of the distance between the scraper and the pole piece so as to scrape redundant slurry; and
and the deslagging assembly is arranged on the lower side of the scraper and is used for receiving and discharging redundant slurry.
As a preferable scheme of the invention, each group of fine tuning components comprises an extension rod and a third electric push rod, wherein the third electric push rod is rotatably connected to the inner wall of the treatment box, one end of the extension rod is fixedly connected to the circumferential surface of the extension shaft, and the other end of the extension rod is fixedly connected to the extension end of the third electric push rod.
As a preferable scheme of the invention, the deslagging assembly comprises two driving rollers, a conveying belt, a screw conveyer, a driving gear, a driven gear and a third servo motor, wherein the two driving rollers are all rotationally connected between the inner walls of the processing box, one driving roller is positioned in the conveying bin, the conveying belt is in transmission connection between the two driving rollers, one side of the conveying belt is positioned in the opening, the screw conveyer is rotationally connected in the conveying bin, one end of the screw conveyer and one end of one driving roller penetrate through the processing box and extend outwards, the driving gear is fixedly connected with one end of the screw conveyer, the driven gear is fixedly connected with one end of one driving roller, the driving gear is meshed with the driven gear, the third servo motor is fixedly connected with the side part of the processing box, and the output end of the third servo motor is fixedly connected with the other end of the screw conveyer.
As a preferable scheme of the invention, the inner walls of the treatment boxes are rotationally connected with the polishing rollers, the polishing rollers are positioned between the hollowed-out table and the conveyer belt, the side parts of the treatment boxes are fixedly connected with the second servo motors, and the output ends of the second servo motors are fixedly connected with the polishing rollers.
As a preferable scheme of the invention, the first heater is fixedly connected in the supporting plate, the second transition ring is fixedly connected in the treatment box, the second heater is fixedly connected in the second transition ring, and the second transition ring is positioned at the lower side of the conveying belt.
As a preferable scheme of the invention, the upper end of the base is fixedly connected with two second installation frames, a plurality of second guide rollers are rotatably connected between the two second installation frames, straight notch openings are respectively formed in the two second installation frames, sliding sleeves are respectively and slidably connected in the two straight notch openings, a stretching roller is rotatably connected between the two sliding sleeves, one side part of one second installation frame is fixedly connected with a first servo motor, the output end of the first servo motor is fixedly connected with one second guide roller, the upper ends of the two second installation frames are fixedly connected with second electric push rods, and the extension ends of the two second electric push rods are respectively and fixedly connected with the corresponding sliding sleeves.
A method of using a negative electrode slurry coating apparatus, comprising the steps of:
s1, adjusting tension: controlling the extension ends of the two second electric push rods to move up and down, wherein the extension ends of the two second electric push rods drive the sliding sleeve to move up and down, so as to drive the stretching roller to move up and down, and the stretching roller can drive the pole piece to move when moving up and down, so that the tension of the pole piece is changed, and the pole piece is in a tension state when moving;
s2, flattening and preheating: controlling the extending ends of the two first electric push rods to move up and down, enabling the extending ends of the two first electric push rods to drive the bearing sleeves to move in a small range, further driving the press rollers to move in a small range, enabling the distance between the press rollers and the first excessive rings to change along with the small range movement, enabling the pole pieces to bypass the first guide rollers and pass through the upper sides of the first excessive rings, enabling the pole pieces to be subjected to pressure of the press rollers when passing between the press rollers and the first excessive rings, so as to reduce uneven surfaces of the pole pieces, starting the first heater, heating the first excessive rings by the first heater, and gradually heating the pole pieces when passing through the surfaces of the first excessive rings;
s3, coating: when the pole piece passes through the upper side of the hollowed-out table by bypassing the third guide roller, starting the main body of the coater, outputting slurry through the coating nozzle, and coating the pole piece;
s4, scraping off redundant slurry: controlling the extension ends of the two third electric push rods to drive the extension rods to move, and gradually approaching the tail ends of the scrapers to the hollowed-out table, wherein when the pole pieces pass between the hollowed-out table and the scrapers, the scrapers can scrape slurry with uneven thickness on the surface of the extension shaft;
s5, polishing: starting a second servo motor, driving the grinding roller to rotate at a high speed through the output end of the second servo motor, and enabling the grinding roller to be in contact with the surface of the pole piece, so that slurry on the surface of the grinding roller is continuously ground, and the grinding roller is smooth and flat;
s6, deslagging: starting a third servo motor, driving one of the driving rollers to rotate through the output end of the third servo motor, further driving the conveying belt to move, scraping and polishing to generate slurry, falling to the upper side of the conveying belt, and entering the conveying bin under the conveying of the conveying belt;
s7, deslagging: the driven gear rotates along with the driving roller, the driving gear is driven to rotate under the meshing action, then the spiral conveyor is driven to rotate, the spiral conveyor drives slurry generated by scraping and polishing to move, and the slurry generated by scraping and polishing enters the collecting box through the slag hole to finish collection;
s8, drying: when the pole piece passes through the second transition ring, the second heater is started to secondarily heat the pole piece, so that the sizing agent is shaped, and coating is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. in this scheme when the pole piece is between fretwork platform and scraper, the scraper can strike off the inhomogeneous thick liquids of extension axle surface thickness, the output through second servo motor drives the high-speed rotation of dull polish roller, can constantly polish the thick liquids on dull polish roller surface, make it smooth and flat, strike off and polish the thick liquids that produce and fall to the upside of conveyer belt, screw conveyer drives the thick liquids removal of striking off and polishing production, strike off and polish the thick liquids that produce and get into the collecting box through the slag notch, this scheme is through scraping the material, arrange the material and the mode of polishing is processed the pole piece, effectively get rid of the protruding part on pole piece surface, make the thick liquids coating more even, and can discharge the thick liquids of striking off, in order to avoid the thick liquids adhesion of striking off to the inner wall of handling the case, improve the production quality of battery.
2. In this scheme, the extension end of control two first electric putter reciprocates, and the extension end of two first electric putter drives the bearing housing and removes by a small margin, and then drives the compression roller and remove by a small margin, and the distance of compression roller and first excessive circle changes thereupon, and the pole piece walks around the upside that first guide roller passed through first excessive circle, when making the pole piece pass through between compression roller and the first excessive circle, receives the pressure of compression roller to reduce pole piece surface unevenness department, more level and smooth when making pole piece coating thick liquids.
3. In this scheme carry out secondary heating through first heater and second heater to the polar plate, can accelerate stoving thick liquids, make the thick liquids can be faster at the surface design of pole piece.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A in accordance with the present invention;
FIG. 3 is a side elevational structural view of the present invention;
FIG. 4 is a schematic diagram of an exploded view of the flattening mechanism of the present invention;
FIG. 5 is an exploded view of the conveyor mechanism of the present invention;
FIG. 6 is a cross-sectional view of the treatment tank of the present invention;
FIG. 7 is a schematic view of a slag discharging mechanism according to the present invention;
FIG. 8 is an exploded view of the slag extractor of the present invention;
FIG. 9 is an overall cross-sectional block diagram of the present invention;
FIG. 10 is a schematic view of a doctor blade of the present invention;
fig. 11 is a flow chart of the present invention.
The reference numerals in the figures illustrate: 1. a base; 2. a main support frame; 3. a pole piece roller; 4. a pole piece; 5. a treatment box; 501. a discharge port; 502. a feed inlet; 503. an upper interface; 6. a coater main body; 601. a paint nozzle; 7. a support plate; 701. a first transition ring; 8. a first heater; 9. a first mounting frame; 10. a bearing sleeve; 11. a press roller; 12. a first electric push rod; 13. a first guide roller; 14. a second mounting frame; 15. a second guide roller; 16. a first servo motor; 17. a straight slot; 18. a sliding sleeve; 19. a second electric push rod; 20. a hollowed-out table; 21. a third guide roller; 22. a second heater; 23. a second transition ring; 24. an extension shaft; 25. a scraper; 26. an extension rod; 27. a third electric push rod; 28. a scrub roller; 29. a second servo motor; 30. a driving roller; 31. a conveyor belt; 32. a conveying bin; 33. an opening; 34. a screw conveyor; 35. a slag outlet; 36. a collection box; 37. a collection port; 38. a drive gear; 39. a driven gear; 40. a third servo motor; 41. stretching rollers.
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.
Examples
Referring to fig. 1 to 11, the technical solution provided in this embodiment is as follows:
the utility model provides a negative pole thick liquids coating equipment, includes base 1, coil stock mechanism, processing box 5, coating machine main part 6, swager constructs and scrapes material deslagging mechanism, wherein: the material winding mechanism comprises a main support frame 2 and a pole piece roller 3, wherein the main support frame 2 is fixedly connected to the upper end of the base 1, the pole piece roller 3 is rotatably connected in the main support frame 2, and the pole piece 4 is wound on the circumferential surface of the pole piece roller 3; the treatment box 5 is fixedly connected to the upper end of the base 1, a feed inlet 502 is formed in one side, close to the main support frame 2, of the treatment box, a discharge outlet 501 is formed in one side, far away from the main support frame 2, of the treatment box 5, an upper interface 503 is formed in the upper side of the treatment box 5, a plurality of third guide rollers 21 are rotatably connected to the treatment box 5, and the pole piece 4 enters the treatment box 5 through the feed inlet 502 and passes through the discharge outlet 501 by bypassing the plurality of third guide rollers 21; the coater main body 6 is fixedly connected to the upper end of the upper interface 503, and a coating nozzle 601 is arranged at the lower side of the coater main body, and the coating nozzle 601 extends into the processing box 5; the material pressing mechanism is arranged between the pole piece roller 3 and the processing box 5 and is used for rolling the pole piece 4, so that the surface of the pole piece 4 is smoother; the scraping and deslagging mechanism is arranged on the processing box 5 and is used for scraping redundant paint on the surface of the pole piece 4, so that the surface of the pole piece 4 is smoother, and the redundant paint is discharged.
In the specific embodiment of the invention, the surface of the first excessive ring 701 is smooth and flat, the pole piece 4 is attached to the upper side of the first excessive ring 701 by bypassing the first guide roller 13, the press roller 11 is positioned on the upper side of the first excessive ring 701, the extending ends of the two first electric push rods 12 are controlled to move up and down, the extending ends of the two first electric push rods 12 drive the bearing bush 10 to move in a small amplitude so as to drive the press roller 11 to move in a small amplitude, the distance between the press roller 11 and the first excessive ring 701 is changed, the pole piece 4 bypasses the upper side of the first excessive ring 701 by bypassing the first guide roller 13, when the pole piece 4 passes between the press roller 11 and the first excessive ring 701, the pressure of the press roller 11 is applied to reduce the uneven surface of the pole piece 4, the first heater 8 is started, the first excessive ring 701 is heated by the first heater 8, the pole piece 4 is gradually heated when passing the surface of the first excessive ring 701, the pole piece 4 is preheated, so that the pole piece 4 can be dried more quickly when being coated with slurry, the hollow platform 20 is hollow structure, the pole piece 4 is attached to the upper side and the lower side of the hollow platform 20, when the pole piece moves to the upper side of the hollow platform 20, the main body 6 of the coating machine is started, the slurry is output through the coating nozzle 601, the pole piece 4 is coated, when the pole piece 4 passes through the space between the hollow platform 20 and the scraper 25, the scraper 25 can scrape the slurry with uneven thickness on the surface of the extension shaft 24, the grinding roller 28 is contacted with the surface of the pole piece 4, the grinding roller 28 is driven to rotate at a high speed through the output end of the second servo motor 29, the slurry on the surface of the grinding roller 28 can be continuously ground, the slurry is smooth and flat, the slurry generated by scraping and grinding falls to the upper side of the conveying belt 31, one of the driving rollers 30 is driven to rotate through the output end of the third servo motor 40, the conveying belt 31 is driven to move, the conveying belt 31 is conveyed into the conveying bin 32, the driven gear 39 rotates along with the driving roller 30, the driving gear 38 is driven to rotate under the action of meshing, the spiral conveyer 34 is driven to rotate, the spiral conveyer 34 drives slurry generated by scraping and polishing to move, the slurry generated by scraping and polishing enters the collecting box 36 through the slag hole 35 to be collected, when the pole piece 4 passes through the second transition ring 23, the second heater 22 is started to secondarily heat the pole piece 4, the slurry is shaped, coating is completed, the pole piece 4 is processed in the manner of scraping, discharging and polishing, the protruding part on the surface of the pole piece 4 is effectively removed, the slurry coating is more uniform, the scraped slurry can be discharged, the scraped slurry is prevented from adhering to the inner wall of the processing box 5, and the production quality of a battery is improved.
Specifically, the swager constructs including backup pad 7, first heater 8, first guide roller 13, compression roller 11 and adjusting part, wherein: the two support plates 7 are fixedly connected to the upper end of the base 1; the first heater 8 is fixedly connected between the two support plates 7; the two ends of the first guide roller 13 are fixedly connected between the two support plates 7; the compression roller 11 is positioned on the upper side of the first transition ring 701, and the pole piece 4 passes through the space between the compression roller 11 and the first transition ring 701; the adjusting components are provided with two groups, are arranged on two sides of the press roller 11 to adjust the distance between the press roller 11 and the first transition ring 701, each group of adjusting components comprises a first mounting frame 9, a bearing sleeve 10 and a first electric push rod 12, the first mounting frame 9 is fixedly connected to the upper end of the base 1, one ends of the bearing sleeve 10 and the first electric push rod 12 are both rotationally connected to the first mounting frame 9, and the extension end of the first electric push rod 12 is rotationally connected to the bearing sleeve 10; the press roller 11 is rotatably connected between the other ends of the two bearing housings 10.
In the embodiment of the invention, the extending ends of the two first electric push rods 12 are controlled to move up and down, the extending ends of the two first electric push rods 12 drive the bearing sleeves 10 to move in a small range, and then drive the press rollers 11 to move in a small range, the distance between the press rollers 11 and the first transition ring 701 is changed along with the movement, and the pole piece 4 bypasses the first guide roller 13 to pass through the upper side of the first transition ring 701, so that the pole piece 4 is stressed by the press rollers 11 when passing between the press rollers 11 and the first transition ring 701, and the uneven surface of the pole piece 4 is reduced.
Specifically, scrape material deslagging mechanism includes fretwork platform 20, extension axle 24, scraper 25, carries storehouse 32, collection box 36, fine setting subassembly and deslagging subassembly, wherein: the hollowed-out table 20 is fixedly connected between the inner walls of the processing box 5 and is positioned at the lower side of the coating nozzle 601, and the pole piece 4 moves and bypasses the upper side of the hollowed-out table 20; the extension shaft 24 is rotatably connected between the inner walls of the processing box 5; the scraper 25 is fixedly connected to the circumferential surface of the extension shaft 24, and the tail end of the scraper 25 is close to the surface of the pole piece 4; the conveying bin 32 is fixedly connected to the inner wall of the processing box 5, one end of the conveying bin penetrates through the processing box 5 and extends outwards, an opening 33 is formed in the upper side of the conveying bin, and a slag outlet 35 is fixedly connected to the lower side of the conveying bin; the collecting box 36 is fixedly connected to the upper end of the base 1, the upper end of the collecting box is provided with a collecting opening 37, and the lower end of the slag outlet 35 is fixedly connected to the collecting opening 37; the fine adjustment assemblies are provided with two groups, are arranged on two sides of the extension shaft 24 and are used for finely adjusting the distance between the scraper 25 and the pole piece 4 to scrape excessive slurry, each group of fine adjustment assemblies comprises an extension rod 26 and a third electric push rod 27, the third electric push rod 27 is rotatably connected to the inner wall of the treatment box 5, one end of the extension rod 26 is fixedly connected to the circumferential surface of the extension shaft 24, and the other end of the extension rod 26 is fixedly connected to the extension end of the third electric push rod 27; the deslagging assembly is arranged on the lower side of the scraper 25 and is used for receiving and discharging redundant slurry, the deslagging assembly comprises two driving rollers 30, a conveying belt 31, a screw conveyer 34, a driving gear 38, a driven gear 39 and a third servo motor 40, the two driving rollers 30 are all rotationally connected between the inner walls of the treatment box 5, one driving roller 30 is positioned in a conveying bin 32, the conveying belt 31 is in transmission connection between the two driving rollers 30, one side of the conveying belt 31 is positioned in an opening 33, the screw conveyer 34 is rotationally connected in the conveying bin 32, one ends of the screw conveyer 34 and one driving roller 30 penetrate through the treatment box 5 and extend outwards, the driving gear 38 is fixedly connected to one end of the screw conveyer 34, the driven gear 39 is fixedly connected to one end of one driving roller 30, the driving gear 38 is meshed with the driven gear 39, the third servo motor 40 is fixedly connected to the side part of the treatment box 5, and the output end of the third servo motor 40 is fixedly connected to the other end of the screw conveyer 34.
In the embodiment of the invention, the conveying bin 32, the driven gear 39, the driving gear 38 and the slag hole 35 are positioned on one side of the processing box 5, the driven gear 39 is positioned on the other side of the processing box 5, the opening 33 is arranged for guiding the conveying belt 31 to move, when the pole piece 4 passes through the space between the hollow table 20 and the scraper 25, the scraper 25 can scrape the slurry with uneven thickness on the surface of the extension shaft 24, the grinding roller 28 contacts with the surface of the pole piece 4, the slurry generated by scraping falls to the upper side of the conveying belt 31, one of the driving rollers 30 is driven to rotate through the output end of the third servo motor 40, the conveying belt 31 is driven to move, the driven gear 39 rotates along with the driving roller 30 under the conveying of the conveying belt 31, the driving gear 38 is driven to rotate under the meshing effect, the spiral conveyor 34 is driven to rotate, the slurry generated by scraping and polishing is driven by the spiral conveyor 34 to move, the slurry generated by scraping and polishing passes through the slag hole 35 and enters the collecting box 36, the residual slurry is directly collected, and the residual slurry is controlled to be driven by the extending ends of the two third electric push rods 27 to drive the extension rods 26 to move along with the hollow table 25, and the distance between the two electric push rods and the end 25 can be adjusted gradually close to the space between the hollow table 25 and the actual blade 20.
Specifically, the inner walls of the treatment box 5 are rotationally connected with the grinding roller 28, the grinding roller 28 is positioned between the hollowed-out table 20 and the conveying belt 31, the side part of the treatment box 5 is fixedly connected with the second servo motor 29, and the output end of the second servo motor 29 is fixedly connected with the grinding roller 28.
In the specific embodiment of the invention, when the pole piece 4 passes between the hollowed-out table 20 and the scraper 25, the output end of the second servo motor 29 drives the grinding roller 28 to rotate at a high speed, so that the slurry on the surface of the grinding roller 28 can be continuously ground, the surface of the grinding roller is smooth and flat, and the slurry generated by grinding falls onto the upper side of the conveying belt 31.
Specifically, the first heater 8 is fixedly connected with the supporting plate 7, the second transition ring 23 is fixedly connected with the processing box 5, the second heater 22 is fixedly connected with the second transition ring 23, and the second transition ring 23 is positioned on the lower side of the conveying belt 31.
In the specific embodiment of the invention, after the pole piece 4 finishes the polishing procedure, the second heater 22 is started to heat the pole piece 4 for the second time, so that the sizing agent is shaped, and the coating is finished.
Specifically, the upper end fixedly connected with two second mounting brackets 14 of base 1, rotate between two second mounting brackets 14 and be connected with a plurality of second guide rollers 15, straight notch 17 has all been seted up on two second mounting brackets 14, all sliding connection has sliding sleeve 18 in two straight notch 17, rotate between two sliding sleeve 18 and be connected with stretching roller 41, the lateral part fixedly connected with first servo motor 16 of one of them second mounting brackets 14, the output fixedly connected with of first servo motor 16 one of them second guide roller 15, the equal fixedly connected with second electric putter 19 of upper end of two second mounting brackets 14, the extension end of two second electric putter 19 respectively with corresponding sliding sleeve 18 fixed connection.
In the specific embodiment of the invention, the treatment box 5 is positioned between the press roller 11 and the second guide rollers 15, the first servo motor 16 is started in operation, one of the second guide rollers 15 is driven to rotate through the output end of the first servo motor 16, the pole piece 4 can be pulled to move, the extending ends of the two second electric push rods 19 are controlled to move up and down, the extending ends of the two second electric push rods 19 drive the sliding sleeve 18 to move up and down, the stretching roller 41 is driven to move up and down, the stretching roller 41 drives the pole piece 4 to move when moving up and down, the tension of the pole piece 4 is changed, the pole piece 4 is in tension when moving, and the friction resistance for driving the pole piece 4 to move is provided.
A method of using a negative electrode slurry coating apparatus, comprising the steps of:
s1, adjusting tension: controlling the extension ends of the two second electric push rods 19 to move up and down, wherein the extension ends of the two second electric push rods 19 drive the sliding sleeve 18 to move up and down, and further drive the stretching roller 41 to move up and down, and the stretching roller 41 drives the pole piece 4 to move when moving up and down, so that the tension of the pole piece 4 is changed, and the pole piece 4 is in a tension state when moving;
s2, flattening and preheating: controlling the extension ends of the two first electric push rods 12 to move up and down, driving the bearing sleeve 10 to move in a small range by the extension ends of the two first electric push rods 12, driving the press roller 11 to move in a small range, changing the distance between the press roller 11 and the first excessive ring 701, enabling the pole piece 4 to pass through the upper side of the first excessive ring 701 by bypassing the first guide roller 13, enabling the pole piece 4 to be under the pressure of the press roller 11 when passing between the press roller 11 and the first excessive ring 701, reducing uneven parts of the surface of the pole piece 4, starting the first heater 8, heating the first excessive ring 701 by the first heater 8, and gradually heating the pole piece 4 when passing through the surface of the first excessive ring 701;
s3, coating: when the pole piece 4 passes through the upper side of the hollowed-out table 20 by bypassing the third guide roller 21, starting the coater main body 6, outputting slurry through the coating nozzle 601, and coating the pole piece 4;
s4, scraping off redundant slurry: controlling the extension ends of the two third electric push rods 27 to drive the extension rods 26 to move, so that the tail ends of the scrapers 25 are gradually close to the hollow tables 20, and when the pole pieces 4 pass between the hollow tables 20 and the scrapers 25, the scrapers 25 can scrape slurry with uneven thickness on the surface of the extension shaft 24;
s5, polishing: starting a second servo motor 29, driving the grinding roller 28 to rotate at a high speed through the output end of the second servo motor 29, and enabling the grinding roller 28 to be in contact with the surface of the pole piece 4, so that slurry on the surface of the grinding roller 28 is continuously ground to be smooth and flat;
s6, deslagging: starting a third servo motor 40, driving one of the driving rollers 30 to rotate through the output end of the third servo motor 40, further driving the conveying belt 31 to move, scraping and polishing slurry to fall onto the upper side of the conveying belt 31, and entering the conveying bin 32 under the conveying of the conveying belt 31;
s7, deslagging: the driven gear 39 rotates along with the driving roller 30, and drives the driving gear 38 to rotate under the meshing action, so as to drive the screw conveyor 34 to rotate, the screw conveyor 34 drives slurry generated by scraping and polishing to move, and the slurry generated by scraping and polishing enters the collecting box 36 through the slag hole 35 to finish collection;
s8, drying: when the pole piece 4 passes through the second transition ring 23, the second heater 22 is started to heat the pole piece 4 for the second time, so that the sizing agent is shaped, and the coating is completed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A negative electrode slurry coating apparatus, characterized by comprising:
a base (1);
the material rolling mechanism comprises a main support frame (2) and a pole piece roller (3), wherein the main support frame (2) is fixedly connected to the upper end of the base (1), the pole piece roller (3) is rotatably connected in the main support frame (2), and a pole piece (4) is wound on the circumferential surface of the pole piece roller (3);
the treatment box (5) is fixedly connected to the upper end of the base (1), a feeding hole (502) is formed in one side, close to the main support frame (2), of the treatment box, a discharging hole (501) is formed in one side, far away from the main support frame (2), of the treatment box (5), an upper interface (503) is formed in the upper side of the treatment box (5), a plurality of third guide rollers (21) are rotationally connected to the treatment box (5), and the pole piece (4) enters the treatment box (5) from the feeding hole (502) and penetrates through the discharging hole (501) by bypassing the plurality of third guide rollers (21);
a coater body (6) fixedly connected to the upper end of the upper interface (503), the lower side of which is provided with a coating nozzle (601), the coating nozzle (601) extending into the processing box (5);
the material pressing mechanism is arranged between the pole piece roller (3) and the processing box (5) and is used for rolling the pole piece (4) so that the surface of the pole piece (4) is smoother; and
the scraping and deslagging mechanism is arranged on the treatment box (5) and is used for scraping redundant paint on the surface of the pole piece (4), so that the surface of the pole piece (4) is smoother, and the redundant paint is discharged;
the material pressing mechanism comprises:
the two support plates (7) are arranged and are fixedly connected to the upper end of the base (1);
a first heater (8) fixedly connected between the two support plates (7);
the two ends of the first guide roller (13) are fixedly connected between the two support plates (7);
a press roller (11) which is positioned on the upper side of the first transition ring (701), wherein the pole piece (4) passes through the space between the press roller (11) and the first transition ring (701); and
the adjusting assemblies are provided with two groups and are arranged on two sides of the press roller (11) to adjust the distance between the press roller (11) and the first transition ring (701);
each group of adjusting components comprises a first mounting frame (9), a bearing sleeve (10) and a first electric push rod (12), wherein the first mounting frame (9) is fixedly connected to the upper end of the base (1), one ends of the bearing sleeve (10) and the first electric push rod (12) are rotatably connected to the first mounting frame (9), and the extension end of the first electric push rod (12) is rotatably connected to the bearing sleeve (10); the compression roller (11) is rotationally connected between the other ends of the two bearing sleeves (10);
the scraping and deslagging mechanism comprises:
the hollowed-out table (20) is fixedly connected between the inner walls of the processing box (5) and is positioned at the lower side of the coating nozzle (601), and the pole piece (4) moves and bypasses the upper side of the hollowed-out table (20);
an extension shaft (24) rotatably connected between the inner walls of the processing box (5);
a scraper (25) fixedly connected to the circumferential surface of the extension shaft (24), the end of the scraper (25) being close to the surface of the pole piece (4);
the conveying bin (32) is fixedly connected to the inner wall of the treatment box (5), one end of the conveying bin penetrates through the treatment box (5) and extends outwards, an opening (33) is formed in the upper side of the conveying bin, and a slag outlet (35) is fixedly connected to the lower side of the conveying bin;
the collecting box (36) is fixedly connected to the upper end of the base (1), the upper end of the collecting box is provided with a collecting opening (37), and the lower end of the slag outlet (35) is fixedly connected to the collecting opening (37);
the fine adjustment assemblies are provided with two groups and are arranged on two sides of the extension shaft (24) and are used for fine adjustment of the distance between the scraper (25) and the pole piece (4) so as to scrape redundant slurry; and
a deslagging assembly arranged at the lower side of the scraper (25) and used for receiving and discharging redundant slurry;
each group of fine adjustment components comprises an extension rod (26) and a third electric push rod (27), the third electric push rods (27) are rotatably connected to the inner wall of the treatment box (5), one ends of the extension rods (26) are fixedly connected to the circumferential surface of the extension shaft (24), and the other ends of the extension rods (26) are fixedly connected to the extension ends of the third electric push rods (27);
the deslagging assembly comprises two driving rollers (30), a conveying belt (31), a spiral conveyer (34), a driving gear (38), a driven gear (39) and a third servo motor (40), wherein the two driving rollers (30) are all rotationally connected between the inner walls of the treatment box (5), one driving roller (30) is positioned in the conveying bin (32), the conveying belt (31) is in transmission connection between the two driving rollers (30), one side of the conveying belt (31) is positioned in an opening (33), the spiral conveyer (34) is rotationally connected in the conveying bin (32), one end of the spiral conveyer (34) and one end of one driving roller (30) penetrate through the treatment box (5) and extend outwards, the driving gear (38) is fixedly connected with one end of the spiral conveyer (34), the driven gear (39) is fixedly connected with one end of one driving roller (30), the driving gear (38) is meshed with the driven gear (39), and the third servo motor (40) is fixedly connected with one end of the side of the treatment box (5), and the other end of the third servo motor (40) is fixedly connected with the output end of the spiral conveyer (34);
the novel polishing device is characterized in that a polishing roller (28) is rotationally connected between the inner walls of the treatment box (5), the polishing roller (28) is located between the hollowed-out table (20) and the conveying belt (31), a second servo motor (29) is fixedly connected to the side portion of the treatment box (5), and the output end of the second servo motor (29) is fixedly connected to the polishing roller (28).
2. The negative electrode slurry coating device according to claim 1, wherein the first heater (8) is fixedly connected in the supporting plate (7), the second transition ring (23) is fixedly connected in the processing box (5), the second heater (22) is fixedly connected in the second transition ring (23), and the second transition ring (23) is positioned on the lower side of the conveying belt (31).
3. The negative electrode slurry coating device according to claim 2, wherein the upper end of the base (1) is fixedly connected with two second installation frames (14), a plurality of second guide rollers (15) are rotatably connected between the two second installation frames (14), straight slots (17) are formed in the two second installation frames (14), sliding sleeves (18) are slidably connected in the two straight slots (17), stretching rollers (41) are rotatably connected between the two sliding sleeves (18), one of the side parts of the second installation frames (14) is fixedly connected with a first servo motor (16), one of the second guide rollers (15) is fixedly connected with the output end of the first servo motor (16), the upper ends of the two second installation frames (14) are fixedly connected with second electric push rods (19), and the extending ends of the two second electric push rods (19) are respectively fixedly connected with the corresponding sliding sleeves (18).
4. A method of using the negative electrode slurry coating apparatus according to claim 3, characterized in that a negative electrode slurry coating apparatus according to claim 3 is applied, comprising the steps of:
s1, adjusting tension: controlling the extension ends of the two second electric push rods (19) to move up and down, wherein the extension ends of the two second electric push rods (19) drive the sliding sleeve (18) to move up and down, and further drive the stretching roller (41) to move up and down, and the stretching roller (41) can drive the pole piece (4) to move when moving up and down, so that the tension of the pole piece (4) is changed, and the pole piece (4) is in a tension state when moving;
s2, flattening and preheating: controlling the extending ends of the two first electric push rods (12) to move up and down, driving the bearing sleeve (10) to move in a small range by the extending ends of the two first electric push rods (12) so as to drive the press roller (11) to move in a small range, changing the distance between the press roller (11) and the first transition ring (701) along with the small range, enabling the pole piece (4) to bypass the first guide roller (13) and pass through the upper side of the first transition ring (701), and enabling the pole piece (4) to be under the pressure of the press roller (11) when passing between the press roller (11) and the first transition ring (701) so as to reduce the uneven surface of the pole piece (4), starting the first heater (8), and enabling the first heater (8) to heat the first transition ring (701), wherein the pole piece (4) is gradually heated when passing through the surface of the first transition ring (701);
s3, coating: when the pole piece (4) bypasses the third guide roller (21) and passes through the upper side of the hollowed-out table (20), the coater main body (6) is started, slurry is output through the coating nozzle (601), and coating work is carried out on the pole piece (4);
s4, scraping off redundant slurry: controlling the extension ends of the two third electric push rods (27) to drive the extension rods (26) to move, so that the tail ends of the scrapers (25) are gradually close to the hollowed-out table (20), and when the pole pieces (4) pass through the hollowed-out table (20) and the scrapers (25), the scrapers (25) can scrape slurry with uneven surface thickness of the extension shafts (24);
s5, polishing: starting a second servo motor (29), driving a grinding roller (28) to rotate at a high speed through the output end of the second servo motor (29), and enabling the grinding roller (28) to be in contact with the surface of the pole piece (4), so that slurry on the surface of the grinding roller (28) is continuously ground to be smooth and flat;
s6, deslagging: starting a third servo motor (40), driving one of the driving rollers (30) to rotate through the output end of the third servo motor (40), further driving the conveying belt (31) to move, scraping and polishing slurry to fall onto the upper side of the conveying belt (31), and entering the conveying bin (32) under the conveying of the conveying belt (31);
s7, deslagging: the driven gear (39) rotates along with the driving roller (30), the driving gear (38) is driven to rotate under the meshing action, the screw conveyor (34) is driven to rotate, the screw conveyor (34) drives slurry generated by scraping and polishing to move, and the slurry generated by scraping and polishing enters the collecting box (36) through the slag hole (35) to finish collection;
s8, drying: when the pole piece (4) passes through the second transition ring (23), the second heater (22) is started to heat the pole piece (4) for the second time, so that the sizing agent is shaped, and the coating is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211453198.XA CN115889105B (en) | 2022-11-21 | 2022-11-21 | Negative electrode slurry coating equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211453198.XA CN115889105B (en) | 2022-11-21 | 2022-11-21 | Negative electrode slurry coating equipment and method |
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| CN115889105B true CN115889105B (en) | 2023-10-03 |
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| KR101710169B1 (en) * | 2015-09-24 | 2017-02-24 | 롯데케미칼 주식회사 | Manufacturing apparatus for coated electrode |
| CN207546914U (en) * | 2017-11-29 | 2018-06-29 | 河南超威电源有限公司 | Machine applies automatic scraping roller arrangement |
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| CN217059018U (en) * | 2022-04-19 | 2022-07-26 | 杭州匠心至信科技有限公司 | Multi-station automatic dye weighing system |
| CN217392854U (en) * | 2021-09-29 | 2022-09-09 | 芜湖市秋华保温材料有限责任公司 | Slurry scraping device for anti-dripping composite heat-insulating brick |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101710169B1 (en) * | 2015-09-24 | 2017-02-24 | 롯데케미칼 주식회사 | Manufacturing apparatus for coated electrode |
| CN207546914U (en) * | 2017-11-29 | 2018-06-29 | 河南超威电源有限公司 | Machine applies automatic scraping roller arrangement |
| CN214234600U (en) * | 2020-10-27 | 2021-09-21 | 江西省允福亨新能源有限责任公司 | High-precision transfer type lithium ion battery pole piece coating machine |
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