CN117358494A - Lithium battery pole piece coating device and lithium battery processing technology - Google Patents

Lithium battery pole piece coating device and lithium battery processing technology Download PDF

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Publication number
CN117358494A
CN117358494A CN202311479711.7A CN202311479711A CN117358494A CN 117358494 A CN117358494 A CN 117358494A CN 202311479711 A CN202311479711 A CN 202311479711A CN 117358494 A CN117358494 A CN 117358494A
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China
Prior art keywords
driving
coating
roller
lithium battery
fixedly arranged
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Application number
CN202311479711.7A
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Chinese (zh)
Inventor
段华勇
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Individual
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Individual
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Priority to CN202311479711.7A priority Critical patent/CN117358494A/en
Publication of CN117358494A publication Critical patent/CN117358494A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0817—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for removing partially liquid or other fluent material from the roller, e.g. scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0821—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by driving means for rollers or work
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention relates to the technical field of lithium battery processing and discloses a lithium battery pole piece coating device and a lithium battery processing technology. According to the invention, the comma scraper is automatically contacted with the coating roller after the back roller rotates for a set number of turns, so that the slurry is interrupted on the substrate, and is automatically separated from the coating roller after the back roller continuously rotates for a set number of turns, so that the problems that when a driving source of the back roller and a driving source of the comma scraper face unstable commercial power, fluctuation occurs in the number of turns driven by the driving source in a set time or the back roller or the comma scraper, the length of a slurry section formed by coating on the surface of the substrate is changed, an error exceeding a safety error range is generated with the length of the set slurry section, and the quality of a lithium battery is affected are avoided.

Description

Lithium battery pole piece coating device and lithium battery processing technology
Technical Field
The invention relates to the technical field of lithium battery processing, in particular to a lithium battery pole piece coating device and a lithium battery processing technology.
Background
Pole piece coating generally refers to a process of uniformly coating a uniformly stirred slurry on a current collector and drying an organic solvent in the slurry. The coating effect has important influence on the capacity, internal resistance, cycle life and safety of the battery. The coating process is a process based on the investigation of the physical properties of fluids by coating one or more layers of a liquid onto a substrate, typically a flexible film or backing paper, which is then oven dried or cured to form a film layer with a specific function. Currently, the coating mode of the lithium ion battery pole piece mainly comprises comma roller transfer coating and slit extrusion coating.
Wherein the slurry transfer amount is adjusted by comma doctor blade gap, and the slurry is transferred onto the substrate by rotation of the backing roll and the applicator roll. When the coating machine is used, after the back roller drives the substrate to travel a certain distance, the comma scraper rotates to be attached to the coating roller, so that tissue slurry is attached to the coating roller, after a blank area with a set length appears on the substrate, the comma scraper resets, and along with the rotation of the coating roller, the slurry is attached to the coating roller again and then transferred to the substrate, and intermittent coating of the substrate is realized.
However, when the back roller and the comma scraper rotate, an independent driving mode is adopted in practical application, the comma scraper runs again after the back roller rotates for a set time, when the driving source of the back roller and the driving source of the comma scraper face unstable commercial power, the number of circles of the back roller or the comma scraper driven by the driving source in the set time fluctuates, the length of a slurry section formed by coating on the surface of a substrate is changed, and the length of the slurry section exceeds an error in a safety error range, so that the quality of a lithium battery is affected.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a lithium battery pole piece coating device which has the advantages of automatically driving comma scraper to switch states and the like, and solves the problems that when a driving source of a back roller and a driving source of the comma scraper face unstable commercial power, the number of turns driven by the driving source to rotate by the back roller or the comma scraper within a set time fluctuates, the length of a slurry section formed by coating on the surface of a substrate is changed, and the length of the slurry section exceeds the error of a safety error range, so that the quality of a lithium battery is affected.
(II) technical scheme
In order to solve the technical problems that when the driving source of the back roller and the driving source of the comma scraper face unstable commercial power, the number of turns driven by the driving source to rotate by the back roller or the comma scraper within a set time fluctuates, so that the length of a slurry section formed by coating on the surface of a substrate is changed, and the length of the slurry section exceeds the error of a safety error range, and the quality of a lithium battery is influenced, the invention provides the following technical scheme:
the utility model provides a lithium battery pole piece coating device, includes the coating machine body, be provided with the coating frame on the coating machine body, the upper surface both ends of coating frame are fixed mounting respectively has drive frame and main drive frame on drive frame and the main drive frame rotate and install feeding guide roller, backing roll, ejection of compact guide roller, coating roller and comma scraper, the substrate is walked around behind the feeding guide roller, follow between the coating roll with around the backing roll motion, later pass through ejection of compact guide roller is discharged, and be provided with the thick liquids case on the coating frame, the thick liquids case with one side of coating roll is laminated mutually, so that the upper surface of thick liquids case with form between the coating roll and be connected with power through direct gear group, just the one end of backing roll with its rotation of drive system of direct gear group, the other end fixed mounting has intermittent drive frock, and the one end fixed mounting of comma scraper has the main drive subassembly, the main drive subassembly is used for driving the comma rotation, the main drive subassembly is in order to drive the accessory drive subassembly is fixed mounting with the accessory drive subassembly is used for translation mutually drives the accessory drive subassembly.
Preferably, the slurry tank comprises a tank body, one corner of the tank body is attached to the coating roller, so that the slurry tank is formed on the upper surface of the tank body, a material collecting tank is arranged on one side of the tank body, the bottom of the material collecting tank is communicated with the inner cavity of the tank body, slurry is contained in the tank body, and the slurry in the tank body is conveyed to the material collecting tank by a pump.
Preferably, the intermittent driving tool comprises a guide frame, an annular gear is arranged on the inner side of the guide frame in a sliding manner along the transverse direction, a limiting rod is fixedly arranged on one side of the annular gear, the limiting rod penetrates through and is in sliding fit with the guide frame, a limiting column is fixedly arranged on one side of the limiting rod, the limiting column moves along the surface of a guide block, the guide block is fixedly arranged on the transmission frame, a plurality of guide columns are fixedly arranged on the lower surface of the guide frame, and the guide columns are in sliding fit with the coater body along the longitudinal direction;
a driving wedge block is fixedly arranged at the bottom of one side of the inner gear ring, and penetrates through and is in sliding fit with the guide frame;
and the inner gear ring is meshed with driving teeth, the driving teeth are fixedly arranged on an intermediate transmission member, and the intermediate transmission member is connected with the back roller.
Preferably, the main driving assembly comprises a rotary gear, the rotary gear is meshed with a rack, the rack penetrates through and is in sliding fit with a shell, the shell is fixedly installed on the transmission frame, one end of the rack is fixedly provided with a driving column, the driving column is provided with a driving chute, a driving block is longitudinally in sliding fit with the driving chute, one side of the driving block is fixedly provided with an output shaft of a first air cylinder, and the first air cylinder is fixedly installed on the auxiliary driving assembly;
the lower surface fixed mounting of rack has the reset plate, the reset plate runs through and sliding fit has the guide arm that resets, the guide arm that resets is provided with reset spring coaxially, reset spring's both ends respectively fixed mounting reset plate with reset on the inner wall of guide arm.
Preferably, the auxiliary driving assembly comprises a transverse displacement seat which is in sliding fit on a base, the base is fixedly arranged on an output shaft of a second cylinder, the second cylinder is fixedly arranged on the lower surface of the shell, and one end, close to the driving wedge block, of the transverse displacement seat is fixedly arranged on the L-shaped driving arc block.
Preferably, the intermediate transmission member comprises an intermediate input shaft, the intermediate input shaft is fixedly mounted on the back roller, primary teeth are fixedly mounted on the intermediate input shaft, secondary teeth are meshed with the primary teeth, the secondary teeth are fixedly mounted on the intermediate output shaft, and driving teeth are fixedly mounted at one end of the intermediate output shaft.
Preferably, the coating machine body is further provided with an unreeling mechanism and a deviation rectifying tool, the unreeling mechanism is used for releasing the coiled material of the base material, and the deviation rectifying tool is used for monitoring and adjusting the advancing position of the base material.
Preferably, a drying box is further arranged on the coater body, and the drying box is used for removing moisture in the sizing agent on the base material.
A lithium battery processing technology uses the lithium battery pole piece coating device.
(III) beneficial effects
Compared with the prior art, the invention provides a lithium battery pole piece coating device, which has the following beneficial effects:
1. according to the invention, the comma scraper is automatically contacted with the coating roller after the back roller rotates for a set number of turns, so that the slurry is interrupted on the substrate, and is automatically separated from the coating roller after the back roller continuously rotates for a set number of turns, so that the problem that the quality of a lithium battery is affected due to the fact that the length of a slurry section formed by coating on the surface of the substrate is changed, and an error exceeding a safety error range is generated between the length of the slurry section and the set length of the slurry section when a driving source of the back roller and the driving source of the comma scraper face unstable commercial power and fluctuation occurs in the number of turns driven by the driving source in a set time is avoided.
2. In the invention, in an initial state (namely, when the coating roller can bring out the slurry), the L-shaped arc blocks only move unidirectionally, namely, the L-shaped arc blocks only move in a direction far away from the intermittent driving tool, and at the moment, the L-shaped arc blocks are output through the first cylinder, the driving block drives the driving column provided with the driving sliding groove to displace, so that the driving column drives the rack to displace, and the rack is meshed with the rotating gear, so that the displacement of the rack drives the rotating gear to rotate, and the rotating gear is fixedly arranged on the comma scraper, so that the comma scraper is driven to rotate, and the gap width between the comma scraper and the coating roller is regulated, thereby regulating the thickness of the slurry brought out by the coating roller, and further changing the thickness of the slurry on the substrate.
Drawings
Fig. 1 is a view showing the installation position of a drying box on a coater body according to the present invention;
FIG. 2 is a view of the mounting locations of the coating frame, the main drive frame and the drive frame of the present invention;
FIG. 3 is a block diagram showing the position of a feed guide roller of the present invention;
FIG. 4 is a schematic cross-sectional view of a feed guide roll, a back roll, a discharge guide roll, a coating roll, and a comma doctor blade of the present invention;
FIG. 5 is a diagram of the position of a drive tooth according to the present invention;
FIG. 6 is a block diagram of the position of the drive wedge of the present invention;
fig. 7 is a schematic cross-sectional view of a secondary drive assembly and a primary drive assembly of the present invention.
In the figure: 1. a coater body; 2. a coating frame; 3. a transmission frame; 4. a main driving frame; 5. a feed guide roller; 6. a back roller; 7. a discharge guide roller; 8. a coating roller; 9. comma scraper; 10. a slurry box; 1001. a case; 1002. a material collecting groove; 11. a slurry tank; 12. a guide frame; 13. an inner gear ring; 14. a limit rod; 15. a limit column; 16. a guide block; 17. a guide post; 18. a drive wedge; 19. a drive tooth; 20. a rotary gear; 21. a rack; 22. a housing; 23. a drive column; 24. driving the chute; 25. a driving block; 26. a first cylinder; 27. a transverse displacement seat; 28. a base; 29. an L-shaped driving arc block; 30. a reset plate; 31. resetting the guide rod; 32. a return spring; 33. an unreeling mechanism; 34. correcting a deviation tool; 35. a drying box; 36. and a second cylinder.
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.
As described in the background art, the prior art has shortcomings, and in order to solve the technical problems as described above, the application provides a lithium battery pole piece coating device.
Referring to fig. 1-7, a lithium battery pole piece coating device comprises a coating machine body 1, a coating frame 2 is arranged on the coating machine body 1, a transmission frame 3 and a main driving frame 4 are respectively and fixedly arranged at two ends of the upper surface of the coating frame 2, a feeding guide roller 5, a back roller 6, a discharging guide roller 7, a coating roller 8 and a comma scraper 9 are rotatably arranged on the transmission frame 3 and the main driving frame 4, a substrate moves around the back roller 6 between the coating roller 8 and the back roller 6 after bypassing the feeding guide roller 5, then is discharged through the discharging guide roller 7, a slurry box 10 is arranged on the coating frame 2, the slurry box 10 is attached to one side of the coating roller 8, so that a slurry box 11 is formed between the upper surface of the slurry box 10 and the coating roller 8, one end of the back roller 6 is in power connection with the coating roller 8 through a gear set, a power system is externally connected with the gear set to drive the power system to rotate, the other end of the power system is fixedly provided with an intermittent drive assembly, the other end of the power system is fixedly provided with the comma scraper 9, and the intermittent drive assembly is fixedly arranged on the main driving assembly is in parallel to the main driving assembly, and the intermittent drive assembly is fixedly arranged on the main driving assembly.
The spur gear group comprises two spur gears which are meshed with each other, the two spur gears are respectively and fixedly arranged on the coating roller 8 and the back roller 6, and one end, close to the spur gears, of each of the coating roller 8 and the back roller 6 is connected with a motor by using a synchronous belt and a synchronous wheel so as to realize synchronous and opposite rotation of the driving coating roller 8 and the back roller 6.
Then the substrate is moved around the back roller 6 between the coating roller 8 and the back roller 6 after bypassing the feeding guiding roller 5, and then discharged through the discharging guiding roller 7, during which the back roller 6 rotates to drive the substrate to move by the friction force between the back roller 6 and the substrate, meanwhile, the coating roller 8 brings the slurry in the slurry tank 11 due to the synchronous and opposite movement of the back roller 6 and the coating roller 8, and the slurry is transferred from the coating roller 8 to the surface of the substrate at the nearest place of the back roller 6, thereby completing the coating of the substrate, the rotation circle number of the back roller 6 is positively correlated with the travelling length of the substrate due to the travelling of the back roller 6, the single-section substrate coating distance is completed after the back roller 6 rotates for a set circle number, and an intermittent driving tool is fixedly arranged at one end of the back roller 6, therefore, when the back roller 6 rotates to the completion of single-section advancing of the substrate, the back roller 6 synchronously drives the intermittent driving tool to be attached to the auxiliary driving assembly, and the intermittent driving tool is enabled to squeeze the auxiliary driving assembly along with the rotation of the back roller 6, so that the auxiliary driving assembly is enabled to displace, and further the auxiliary driving assembly is enabled to drive the main driving assembly to move, so that the main driving assembly drives the comma scraper 9, the comma scraper 9 is enabled to rotate to be contacted with the coating roller 8, so that the comma scraper 9 scrapes off the slurry on the coating roller 8, when a slurry-free area on the coating roller 8 is enabled to be contacted with the substrate on the back roller 6, no slurry is transferred, and a slurry-free section is enabled to appear on the substrate, similarly, when the back roller 6 is continuously rotated for a set number of turns, the back roller 6 is enabled to drive the intermittent driving tool to reset to an initial position along with the rotation of the back roller 6, at the moment, both the auxiliary driving assembly and the main driving assembly are reset, so that the comma scraper 9 is separated from the coating roller 8, the slurry brought by the contact of the coating roller 8 with the slurry tank 11 is transferred to the substrate driven by the back roller 6 again, and then the above steps are repeated until the whole substrate is coated, so that the sectional coating of the substrate is realized.
The invention drives the substrate to move through the back roller 6 and drives the coating roller 8 to rotate so that the coating roller 8 adheres the slurry in the slurry tank 11 to the surface of the substrate to be carried out, and transfers the slurry to the substrate driven by the back roller 6 at one side of the coating roller 8, which is close to the back roller 6, thereby realizing the coating of the substrate surface, along with the rotation of the back roller 6, the coating roller 8 continuously coats the slurry on the substrate, when the back roller 6 rotates for a set number of turns, the coating roller 8 enables the slurry to form a coating area with a set length on the substrate, in the process, the back roller 6 synchronously drives the intermittent driving tool to operate, after the intermittent driving tool is attached to the auxiliary driving component, the auxiliary driving component is extruded to displace so as to drive the main driving component to move, thereby enabling the driving component to drive the comma scraper 9 to contact with the coating roller 8, the slurry on the surface of the coating roller 8 is scraped by the comma scraper 9, so that when the slurry-free area on the coating roller 8 is contacted with the substrate on the back roller 6, no slurry is transferred, and then a slurry-free section appears on the substrate, and similarly, when the back roller 6 rotates continuously for a set number of times, the back roller 6 drives the intermittent driving tool to reset to the initial position along with the rotation of the back roller 6, at the moment, the auxiliary driving component and the main driving component are reset, so that the comma scraper 9 is separated from the coating roller 8, at the moment, the slurry brought by the contact of the coating roller 8 with the slurry groove 11 is transferred onto the substrate driven by the back roller 6 again, after the back roller 6 rotates for a set number of times, the comma scraper 9 is automatically contacted with the coating roller 8, so that the slurry is interrupted on the substrate, and after the back roller 6 rotates continuously for a set number of times, the slurry is automatically separated from the coating roller 8, so that the slurry is continuously coated on the substrate, therefore, the problems that when the driving source of the back roller and the driving source of the comma scraper face unstable commercial power, the number of turns driven by the driving source in set time to rotate by the back roller or the comma scraper fluctuates, the length of a slurry section formed by coating on the surface of a substrate is changed, and the length of the slurry section exceeds the safety error range, and the quality of a lithium battery is affected are avoided.
Further, for the above slurry tank 10, the slurry tank 10 includes a tank 1001, where a corner of the tank 1001 is attached to the coating roller 8, so that the slurry tank 11 is formed on the upper surface of the tank 1001, and a collection tank 1002 is formed on one side of the tank 1001, the bottom of the collection tank 1002 is communicated with the inner cavity of the tank 1001, the slurry is contained in the tank 1001, and the slurry in the tank 1001 is conveyed into the collection tank 1002 by a pump;
the coating roller 8 is tightly attached to one corner of the box 1001, so that after the coating roller 8 transfers the slurry carried out from the slurry tank 11 onto a substrate, the coating roller is tightly attached to the box 1001, the box 1001 scrapes off the residual slurry on the surface of the coating roller 8, the phenomenon of falling off is avoided after the slurry is solidified due to layering phenomenon between the residual slurry and the new slurry, the falling slurry flows into the box 1001 after entering the aggregate tank 1002, and the residual slurry and other slurries are fully mixed through a stirring shaft arranged in the box 1001, so that the residual slurry and the other slurries are fused into a whole, and are input into the slurry tank 11 through a pump.
Further, for the intermittent driving tool, the intermittent driving tool comprises a guide frame 12, an inner gear ring 13 is mounted on the inner side of the guide frame 12 in a sliding manner along the transverse direction, a limit rod 14 is fixedly mounted on one side of the inner gear ring, a limit post 15 is fixedly mounted on one side of the limit rod 14 penetrating through and in sliding fit with the guide frame 12, the limit post 15 moves along the surface of a guide block 16, the guide block 16 is fixedly mounted on the transmission frame 3, a plurality of guide posts 17 are fixedly mounted on the lower surface of the guide frame 12, and the guide posts 17 are longitudinally in sliding fit with the coater body 1;
a driving wedge block 18 is fixedly arranged at the bottom of one side of the annular gear 13, and the driving wedge block 18 penetrates through and is in sliding fit with the guide frame 12;
and the inner gear ring 13 is meshed with driving teeth 19, and the driving teeth 19 are fixedly arranged on an intermediate transmission member, and the intermediate transmission member is connected with the back roller 6.
The intermediate transmission part comprises an intermediate input shaft which is fixedly arranged on the back roller 6, primary teeth which are meshed with secondary teeth are fixedly arranged on the intermediate input shaft, one end of the intermediate output shaft is fixedly provided with the driving teeth 19,
when the back roller 6 rotates, the intermediate input shaft is driven to rotate, the primary teeth are fixedly arranged on the intermediate input shaft so as to drive the primary teeth to rotate, the primary teeth are meshed with the secondary teeth so as to drive the secondary teeth to rotate, the secondary teeth are fixedly arranged on the intermediate output shaft so as to drive the intermediate output shaft to drive the driving teeth 19 to rotate, the tooth number ratio of the primary teeth and the secondary teeth is changed through the rotating mode, and therefore the angular speed between the back roller 6 and the driving teeth 19 is changed, and after the back roller 6 rotates for a plurality of circles, the driving teeth 19 only rotate for a certain proportion of circles.
The driving teeth 19 are rotated along with the rotation of the back roller 6, so that the driving teeth 19 drive the inner gear ring 13 meshed with the driving teeth 19 to translate up and down and left and right around the driving teeth, wherein, as the inner gear ring 13 is always meshed with the driving teeth 19, after the driving teeth 19 drive the inner gear ring 13 to move downwards along with the guide frame 12 by a set distance, the inner gear ring 13 is horizontally moved along with the rotation of the driving teeth 19, so that the inner gear ring 13 is horizontally displaced relative to the guide frame 12, thereby enabling the driving wedge block 18 mounted on the inner gear ring 13 to correspond to the auxiliary driving assembly, and as the driving teeth 19 continue to rotate, the driving teeth 19 drive the inner gear ring 13 to upwards displace, so that after the driving wedge block 18 contacts with the auxiliary driving assembly, the auxiliary driving assembly is extruded to displace, and the driving wedge block 18 and the auxiliary driving assembly are kept relatively sliding, so that the state of the auxiliary driving assembly is kept, then the driving wedge block 18 is separated from the auxiliary driving assembly, and the auxiliary driving assembly is reset.
Wherein the ring gear 13 is driven to move around the outer surface of the guide block 16 under the action of the guide frame 12, the limit lever 14, the limit post 15, etc. as the driving teeth 19 continuously rotate.
Further, for the main driving assembly, the main driving assembly comprises a rotary gear 20, the rotary gear 20 is meshed with a rack 21, the rack 21 penetrates through and is in sliding fit with a shell 22, the shell 22 is fixedly installed on the transmission frame 3, one end of the rack 21 is fixedly provided with a driving column 23, the driving column 23 is provided with a driving chute 24, the driving chute 24 is longitudinally and slidably matched with a driving block 25, one side of the driving block 25 is fixedly provided with an output shaft of a first cylinder 26, and the first cylinder 26 is fixedly installed on the auxiliary driving assembly;
the lower surface of the rack 21 is fixedly provided with a reset plate 30, the reset plate 30 penetrates through and is in sliding fit with a reset guide rod 31, the reset guide rod 31 is coaxially provided with a reset spring 32, and two ends of the reset spring 32 are respectively and fixedly arranged on the reset plate 30 and the inner wall of the reset guide rod 31;
the auxiliary driving assembly comprises a transverse displacement seat 27, the transverse displacement seat 27 is in sliding fit on a base 28, the base 28 is fixedly arranged on an output shaft of a second air cylinder 36, the second air cylinder 36 is fixedly arranged on the lower surface of the shell 22, and one end, close to the driving wedge block 18, of the transverse displacement seat 27 is fixedly arranged on an L-shaped driving arc block 29;
after the driving wedge 18 contacts with the L-shaped driving arc block 29, the driving wedge 18 is enabled to press the arc edge of the L-shaped arc block 29 along with the continuous upward movement of the driving wedge 18, so that the L-shaped arc block 29 translates until one side of the driving wedge 18 and one side of the L-shaped arc block 29 are attached, the L-shaped arc block 29 translates, the first cylinder 26 is fixedly arranged on the L-shaped arc block 29, so that the first cylinder 26 is driven to translate, the driving block 25 is fixedly arranged on the output shaft of the first cylinder 26, and the driving block 25 is in sliding fit with the driving chute 24, so that the driving column 23 provided with the driving chute 24 is driven to displace, the driving column 23 drives the rack 21 to displace, the rack 21 is meshed with the rotary gear 20, the rotary gear 20 is driven to rotate due to the displacement of the rack 21, and the comma scraper 9 is fixedly arranged on the comma scraper 9, so that the comma scraper 9 is enabled to contact with the coating roller 8, the slurry on the surface of the coating roller 8 is scraped, and the slurry on the backing roller 8 is enabled to be free from contacting with the substrate when the slurry on the backing roller 6 is enabled to be free from contacting with the substrate.
When the rack 21 is displaced, the reset plate 30 compresses the reset spring 32, so that the reset spring 32 generates elasticity, the rack 21 is reset under the action of the elasticity of the reset spring 32 after the driving wedge 18 continues to move upwards to be separated from the L-shaped arc block 29, and the comma scraper 9 is driven to reset, so that the comma scraper 9 is separated from the coating roller 8, and the coating roller 8 continues to coat the slurry on the substrate.
Wherein under initial condition (namely when coating roller 8 can take out the thick liquids), L row arc piece 29 only can one-way motion, L shape arc piece 29 only can be to keeping away from the direction removal of intermittent type drive frock, output through first cylinder 26 this moment, drive through drive piece 25 drive set up drive chute 24's drive post 23 carries out the displacement, make drive post 23 drive rack 21 carry out the displacement, because rack 21 meshes with rotatory gear 20, the displacement of rack 21 has driven rotatory gear 20 and has rotated, again because rotatory gear 20 fixed mounting is on comma scraper 9, thereby drive comma scraper 9 rotates, with the clearance width between regulation comma scraper 9 and the coating roller, thereby reach the thickness of the thick liquids that adjust coating roller 8 brought out, and then change the thickness of substrate sizing material.
Further, for the coater body 1, the coater body 1 is further provided with an unreeling mechanism 33 and a deviation rectifying tool 34, the unreeling mechanism 33 is used for releasing the coiled material of the base material, and the deviation rectifying tool 34 is used for monitoring and adjusting the advancing position of the base material.
Further, for the coater body 1, a drying box 35 is further disposed on the coater body 1, and the drying box 35 is used for removing the moisture in the substrate sizing agent.
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 hereto without departing from the spirit and principles of the present invention.

Claims (9)

1. The utility model provides a lithium battery pole piece coating device, includes coating machine body (1), its characterized in that: the coating machine comprises a coating machine body (1), wherein a coating frame (2) is arranged on the coating machine body (1), a transmission frame (3) and a main driving frame (4) are respectively and fixedly arranged at two ends of the upper surface of the coating frame (2), a feeding guide roller (5), a back roller (6), a discharging guide roller (7), a coating roller (8) and a comma scraper (9) are rotatably arranged on the transmission frame (3) and the main driving frame (4), a substrate bypasses the feeding guide roller (5), the coating roller (8) and the back roller (6) are wound around the back roller (6) to move, then pass through the discharging guide roller (7), a slurry box (10) is arranged on the coating frame (2), one side of the slurry box (10) is attached to one side of the coating roller (8), one end of the back roller (6) is connected with the coating roller (8) through a direct gear set, the other end of the back roller (6) is connected with the power supply, the other end of the coating roller is connected with the main driving component through a comma scraper (9) in an intermittent manner, the other end of the intermittent driving component is fixedly arranged on the main driving component, the intermittent driving component is connected with the intermittent driving component, and the intermittent driving component is arranged on one end of the intermittent driving component, to drive the translation of the primary drive assembly.
2. The lithium battery pole piece coating device according to claim 1, wherein: slurry box (10) includes box (1001), the one corner of box (1001) with coating roller (8) laminating mutually, so that the upper surface of box (1001) forms slurry tank (11), just collection silo (1002) have been seted up to one side of box (1001), the bottom of collection silo (1002) with the inner chamber of box (1001) is linked together, be used for holding the thick liquids in box (1001), and adopt the pump with the thick liquids in box (1001) are carried extremely in collection silo (1002).
3. The lithium battery pole piece coating device according to claim 2, wherein: the intermittent driving tool comprises a guide frame (12), an inner gear ring (13) is arranged on the inner side of the guide frame (12) in a sliding manner along the transverse direction, a limit rod (14) is fixedly arranged on one side of the inner gear ring, the limit rod (14) penetrates through and is in sliding fit with the guide frame (12), a limit column (15) is fixedly arranged on one side of the limit rod (14), the limit column (15) moves along the surface of a guide block (16), the guide block (16) is fixedly arranged on the transmission frame (3), a plurality of guide columns (17) are fixedly arranged on the lower surface of the guide frame (12), and the guide columns (17) are in longitudinal sliding fit with the coater body (1);
a driving wedge block (18) is fixedly arranged at the bottom of one side of the annular gear (13), and the driving wedge block (18) penetrates through and is in sliding fit with the guide frame (12);
and the inner gear ring (13) is meshed with driving teeth (19), the driving teeth (19) are fixedly arranged on an intermediate transmission member, and the intermediate transmission member is connected with the back roller (6).
4. A lithium battery pole piece coating device as in claim 3, wherein: the main driving assembly comprises a rotating gear (20), the rotating gear (20) is meshed with a rack (21), the rack (21) penetrates through and is in sliding fit with a shell (22), the shell (22) is fixedly installed on the transmission frame (3), a driving column (23) is fixedly installed at one end of the rack (21), a driving chute (24) is formed in the driving column (23), a driving block (25) is longitudinally in sliding fit with the driving chute (24), an output shaft of a first air cylinder (26) is fixedly installed at one side of the driving block (25), and the first air cylinder (26) is fixedly installed on the auxiliary driving assembly;
the lower surface fixed mounting of rack (21) has reset plate (30), reset plate (30) run through and sliding fit has reset guide pole (31), reset guide pole (31) coaxial set up reset spring (32), reset spring (32) both ends respectively fixed mounting reset plate (30) with on the inner wall of reset guide pole (31).
5. The lithium battery pole piece coating device according to claim 4, wherein: the auxiliary drive assembly comprises a transverse displacement seat (27), the transverse displacement seat (27) is in sliding fit on a base (28), the base (28) is fixedly arranged on an output shaft of a second air cylinder (36), the second air cylinder (36) is fixedly arranged on the lower surface of the shell (22), and one end, close to the driving wedge block (18), of the transverse displacement seat (27) is fixedly arranged on an L-shaped driving arc block (29).
6. The lithium battery pole piece coating device according to claim 5, wherein: the intermediate transmission piece comprises an intermediate input shaft, the intermediate input shaft is fixedly arranged on the back roller (6), primary teeth are fixedly arranged on the intermediate input shaft, secondary teeth are meshed with the primary teeth, the secondary teeth are fixedly arranged on the intermediate output shaft, and driving teeth (19) are fixedly arranged at one end of the intermediate output shaft.
7. The lithium battery pole piece coating device according to claim 6, wherein: the coating machine is characterized in that an unreeling mechanism (33) and a deviation rectifying tool (34) are further arranged on the coating machine body (1), the unreeling mechanism (33) is used for releasing base material coiled materials, and the deviation rectifying tool (34) is used for monitoring and adjusting the advancing position of the base material.
8. The lithium battery pole piece coating device according to claim 7, wherein: the coating machine is characterized in that a drying box (35) is further arranged on the coating machine body (1), and the drying box (35) is used for removing moisture in the sizing agent on the base material.
9. A lithium battery processing technology is characterized in that: the lithium battery processing technology uses the lithium battery pole piece coating device according to any one of claims 1-8.
CN202311479711.7A 2023-11-08 2023-11-08 Lithium battery pole piece coating device and lithium battery processing technology Withdrawn CN117358494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311479711.7A CN117358494A (en) 2023-11-08 2023-11-08 Lithium battery pole piece coating device and lithium battery processing technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311479711.7A CN117358494A (en) 2023-11-08 2023-11-08 Lithium battery pole piece coating device and lithium battery processing technology

Publications (1)

Publication Number Publication Date
CN117358494A true CN117358494A (en) 2024-01-09

Family

ID=89400296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311479711.7A Withdrawn CN117358494A (en) 2023-11-08 2023-11-08 Lithium battery pole piece coating device and lithium battery processing technology

Country Status (1)

Country Link
CN (1) CN117358494A (en)

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Application publication date: 20240109