CN111715461A - Universal electrode coating system for lithium/sodium ion battery - Google Patents
Universal electrode coating system for lithium/sodium ion battery Download PDFInfo
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- CN111715461A CN111715461A CN202010616573.2A CN202010616573A CN111715461A CN 111715461 A CN111715461 A CN 111715461A CN 202010616573 A CN202010616573 A CN 202010616573A CN 111715461 A CN111715461 A CN 111715461A
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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
- B05C1/02—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 separate articles
- B05C1/025—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 separate articles to flat rectangular articles, e.g. flat sheets
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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
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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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- 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
Abstract
The invention discloses a universal electrode coating system for a lithium/sodium ion battery, which comprises a supporting plate, a bottom plate, a brushing device and a linear moving mechanism, wherein the supporting plate is provided with a substrate, the upper side of the bottom plate is concavely provided with a slot, a buffer device is arranged in the slot, and the supporting plate has a compression force on the buffer device when inserted in the slot; a pressing device is arranged outside the slot and used for limiting the ejection of the supporting plate; the brushing device comprises a roller arranged above the bottom plate, and a roller shaft is arranged in the roller and can rotate around the roller shaft; two ends of the roller shaft extend out of the roller and are respectively fixedly connected with the lifting structure; the linear moving mechanism comprises a screw rod, the screw rod is arranged on two sides of the bottom plate, a sliding block is slidably arranged on the screw rod, and the sliding block can pull the brushing device to slide through a connecting component. The invention prevents the support plate and the battery substrate from displacement in the coating process through the buffer device and the pressing device, and ensures the stability of the coating process.
Description
Technical Field
The invention belongs to the technical field of battery processing, and particularly relates to a universal electrode coating system for a lithium/sodium ion battery.
Background
With the increasing severity of the problems of energy shortage, environmental pollution and the like, the development and search of novel clean and sustainable energy becomes a crucial problem; the lithium ion battery has the characteristics of high electrochemical capacity, high energy density, good cycle performance and the like, is widely applied to portable electronic products and large energy storage equipment, and is also the most widely used mobile power supply in the current market.
Sodium and lithium are elements in the same main group in the periodic table of elements, have similar physicochemical properties, and sodium resources are widely distributed and low in price, so that the production cost of the battery can be reduced, and therefore, the possibility of replacing lithium ion batteries exists and the attention is paid more and more.
The electrode of lithium and sodium ion battery is the core of battery and can be divided into positive electrode and negative electrode, the positive electrode substrate is generally aluminum foil, and the negative electrode substrate is generally copper foil. As is well known, electrode coating is a critical step in the battery assembly process, and as the requirement of the prior art on coating quality is higher and higher, the electrode coating method of lithium and sodium ion batteries needs to be improved at present.
The working principle of the existing coating system is that a scraper moving at a constant speed pushes slurry to uniformly coat the slurry on the surface of a battery substrate to form a film; but it has the following drawbacks: 1. because the scraper has a certain friction force with the electrode slurry in the horizontal propelling process, the problem of local slurry accumulation is easily caused when the electrode slurry with higher viscosity is used for coating, so that the film forming is uneven to influence the quality of an electrode finished product; 2. the blade or the substrate inevitably generates minute vibration during the coating process, which also causes the film forming quality of the slurry to be reduced; 3. in the coating operation process, the condition that the slurry needs to be replaced occurs, in order to prevent cross contamination among the slurries, the part of the scraper contacting the slurry needs to be thoroughly cleaned, and the cleaning process has low efficiency, long time consumption and high labor intensity; in particular, for some slurries with larger viscosity and smaller electrode material particle size, the whole cleaning process is more difficult, and there is a possibility that a trace amount of electrode material is still adsorbed on the surface of the cleaned blade, which causes pollution to subsequent slurry coating.
Therefore, it is a technical problem to be solved by those skilled in the art to provide a universal electrode coating system for lithium/sodium ion batteries, which has a simple structure, can improve the film-forming quality of battery electrode coating, can reduce cross contamination caused by frequent slurry replacement, has uniform coating and film formation, is stable in coating process, and can replace slurry quickly and efficiently.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a general electrode coating system for a lithium/sodium ion battery, which has a simple structure, can improve the film forming quality of battery electrode coating, reduces cross contamination caused by frequent slurry replacement, has uniform coating film forming, stable coating process and quick and efficient slurry replacement.
In order to solve the technical problems, the invention adopts the following technical scheme:
a lithium/sodium ion battery universal electrode coating system comprises a bottom plate, and is characterized in that:
the upper side of the bottom plate is provided with a slot which penetrates through the front side of the bottom plate, so that a socket is formed on the front side of the bottom plate; a supporting plate is arranged in the slot, and a positioning groove for mounting a substrate is arranged on the upper side of the supporting plate; the two sides of the supporting plate are connected with the two sides of the slot in a sliding fit manner, so that the supporting plate can move back and forth along the slot; a buffer device is arranged between the rear side of the supporting plate and the rear side of the slot; the front side of the bottom plate is provided with two pressing devices, the pressing devices are distributed on two sides of the slot and are rotatably connected with the bottom plate, and the pressing devices can be contacted with the front side of the supporting plate by rotating the pressing devices and can be matched with the buffer device to press the supporting plate in the slot;
four upright posts are vertically arranged above the bottom plate, the upright posts are distributed in a rectangular shape and are positioned at the outer side of the positioning groove, and a connecting line of the two upright posts which are positioned at one side of the positioning groove and distributed along the front-back direction of the bottom plate is parallel to a connecting line of the two upright posts positioned at the other side of the positioning groove; two linear moving mechanisms are respectively arranged on two sides of the positioning groove along the front-back direction of the bottom plate and are respectively connected with the upright posts on two sides of the positioning groove, wherein the two linear moving mechanisms are driven by a driving motor;
a brushing mechanism is arranged between the two linear moving mechanisms, the brushing mechanism comprises a horizontal plate which is horizontally arranged, and two ends of the horizontal plate are respectively connected with the adjacent linear moving mechanisms through connecting rods; a roller is horizontally arranged below the transverse plate, the roller is rotatably sleeved on a roller shaft, and two ends of the roller shaft are respectively connected with the transverse plate through a lifting structure; a coating film is detachably arranged on the roller and winds around the roller for a circle; wherein, the two ends of the roller and the coating film extend to the outer sides of the two sides of the positioning groove.
Further, the both sides wall of slot is sunken to the direction that deviates from mutually and is formed the spout, the relative both sides of backup pad are located the spout, and the upper and lower both sides of backup pad correspond with the upper and lower both sides laminating of spout.
Furthermore, the buffer device comprises a buffer plate which is vertically arranged in the slot and is parallel to the rear side wall of the slot, and a plurality of buffer springs are arranged between the rear side of the buffer plate and the rear side wall of the slot; the buffer springs are distributed along the length direction of the buffer plate, and two ends of the buffer springs are fixedly connected with the rear side of the buffer plate and the rear side wall of the slot respectively; the front side of the buffer board corresponds to the support board and is provided with a clamping groove, and the rear side of the support board can be inserted into the clamping groove and is clamped with the buffer board.
Furthermore, the pressing device comprises a pressing plate, one end of the pressing plate is provided with a guide rod, a movable sleeve is sleeved on the guide rod, and the movable sleeve is rotatably connected with the guide rod and can synchronously move along the axial direction of the guide rod along with the guide rod; a guide groove corresponding to the guide rod is arranged on the front side of the bottom plate, the guide rod and the movable sleeve both extend into the guide groove and are in clearance fit with the guide groove, so that the guide rod can freely rotate and slide along the guide groove, and in the rotating process of the guide rod, the other end of the compression plate can be staggered with the front side of the slot; the guide rod is sleeved with a compression spring, one end of the compression spring is fixedly connected with the bottom of the guide groove, and the other end of the compression spring is fixedly connected with the movable sleeve.
Furthermore, a fixing hole is formed in one side, far away from the guide rod, of the pressing plate, a fixing rod corresponding to the fixing hole is arranged on the two vertical columns close to the front side of the bottom plate, and after the pressing plate rotates around the axis of the guide rod, the fixing hole can be opposite to the fixing rod and sleeved into the fixing rod.
Further, the linear moving mechanism comprises a box body, the box body is connected with the upper ends of the two vertical columns on the same side of the positioning groove, a screw rod is arranged in the box body along the length direction of the box body, and two ends of the screw rod are rotatably connected with two ends of the box body; the screw rod is sleeved with a sliding block, the sliding block is in threaded fit connection with the screw rod, and when the screw rod rotates, the sliding block can move along the screw rod; one side of each of the two box bodies, which is opposite to the other side, is provided with a strip-shaped hole along the length direction of the box body, and the upper end of each connecting rod is bent towards the corresponding strip-shaped hole and then extends into the box body and is connected with the sliding block; the driving motor is positioned at the rear end of one box body, and a driving motor shaft of the driving motor is connected with a screw rod in the box body; the driving motor is characterized in that a driving wheel is further arranged on a driving motor shaft of the driving motor, a screw rod in the other box body extends out of the rear end of the box body and is connected with a driven wheel, the driving wheel and the driven wheel are connected through a transmission belt, and the screw rods in the two box bodies can be driven to synchronously rotate through the transmission belt.
Furthermore, the lifting structure comprises two vertically arranged lifting screw rods, the two lifting screw rods are respectively close to two ends of the transverse plate, and the lifting screw rods vertically penetrate through the transverse plate and are in threaded fit connection with the transverse plate; the lower end of the lifting screw is provided with a connecting block, and the lower end of the lifting screw is connected with the connecting block through a bearing; and two ends of the roller shaft are correspondingly connected with the two connecting blocks.
Furthermore, a turntable is arranged at the upper end of the lifting screw rod.
Furthermore, two fixing devices are arranged on the roller and are respectively positioned at the outer sides of the two sides of the positioning groove, and the coating film is fixedly connected with the roller through the fixing devices; the fixing device comprises an annular fixing sleeve, and the fixing sleeve is used for being sleeved on the coating film to fix the coating film and the roller.
Furthermore, a fixed block is arranged on the outer side of the fixed sleeve, one end of the fixed block is connected with the fixed sleeve, and the other end of the fixed block extends towards the direction of the positioning groove; a fixing bolt is also vertically arranged at one end of the fixing block, which is far away from the fixing sleeve; wherein, the two ends of the coating film are provided with overlapped parts, the fixing bolt is opposite to the overlapped parts and presses the overlapped parts on the roller.
Compared with the prior art, the invention has the following beneficial effects:
1. this general electrode coating system of lithium/sodium ion battery drives the lead screw synchronous rotation in two boxes through driving motor and drive belt to make the nut that the screw thread cup jointed take place horizontal migration on the lead screw, simultaneously, the device of applying paint also can synchronous horizontal motion, thereby make running roller and coating film do the uniform velocity roll on the battery substrate, the friction of running roller with thick liquids has been reduced, thereby the even coating of thick liquids on the battery substrate is on the substrate surface, and, utilize driving motor's positive and negative commentaries on classics can also realize this coating system's reciprocal coating.
2. According to the lithium/sodium ion battery universal electrode coating system, the buffer device is arranged on the rear side inside the slot of the bottom plate, and the pressing device arranged on the front side of the bottom plate is utilized, so that the pressing plate has a pressing force towards the inner side of the slot, and a part of the pressing plate is in contact with the supporting plate, so that the supporting plate can be tightly pressed, the supporting plate and the battery substrate are prevented from being displaced in the coating process, and the stability of coating work is ensured; because the buffer spring and the compression spring exist, when the vibration in the coating process is transmitted to the supporting plate, the vibration can be slowed down by the buffer spring and the compression spring, so that the influence of the vibration on the coating work is reduced, and the stability of the coating process is further ensured.
3. According to the lithium/sodium ion battery universal electrode coating system, a layer of coating film is laid on the outer surface of a roller, and the coating film and the roller are fixed together by using a fixing device; during coating, the coating film is used for replacing the roller to directly contact with the slurry, after coating is finished, the coating film is only required to be taken down, the slurry on the surface of the coating film is recovered and then discarded, and the roller is not in contact with the slurry, so that cleaning is not required, and the risk of cross contamination is avoided; meanwhile, the battery substrate is coated in a rolling mode of the roller, so that the coating precision and uniformity are improved, the friction force between the battery substrate and the roller is reduced in a rolling mode, and the possibility of displacement and vibration of the supporting plate and the battery substrate is further avoided.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is an overall elevational view of the present invention;
FIG. 3 is an overall top view of the present invention;
FIG. 4 is a schematic perspective view of the present invention at a cassette;
FIG. 5 is a schematic structural diagram of the base plate of the present invention;
FIG. 6 is a schematic structural view of the support plate and the bottom plate of the present invention in a separated state;
FIG. 7 is a partial top view of the base plate of the present invention;
FIG. 8 is a schematic view of the structure of a roll and a coating film according to the present invention;
FIG. 9 is a schematic view of the structure of the fixing device of the present invention;
FIG. 10 is a schematic view of a buffer device according to the present invention;
FIG. 11 is an enlarged view of the structure of FIG. 10 at A in accordance with the present invention;
FIG. 12 is a schematic view of the construction of the compacting apparatus of the present invention;
fig. 13 is an exploded view of the compression device of the present invention.
The reference numbers illustrate: a support plate 1; a base plate 2; a column 21; a case 22; a transmission belt 24; a drive motor 25; a fixing bar 26; a support plate 27; a substrate 3; a buffer device 4; a buffer plate 41; a card slot 42; a buffer spring 43; a pressing device 5; a pressing plate 51; a guide rod 52; a compression spring 53; a movable sleeve 54; a fixing hole 55; a roller 6; a coating film 61; a fixing sleeve 62; a fixed block 63; a fixing bolt 64; a roller shaft 7; a lifting structure 8; a lifting screw 81; a connecting block 82; a turntable 83; a screw rod 9; a slider 10; a connecting rod 11; a cross plate 12.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
Example 1: referring to fig. 1 to 13, a coating system for a universal electrode of a lithium/sodium ion battery includes a base plate 2, wherein a slot is formed on an upper side of the base plate 2, and the slot penetrates through a front side of the base plate 2, so that a socket is formed on the front side of the base plate 2. A supporting plate 1 is arranged in the slot, and a positioning groove for mounting a substrate 3 is arranged on the upper side of the supporting plate 1; the two sides of the supporting plate 1 are connected with the two sides of the slot in a sliding fit mode, so that the supporting plate 1 can move back and forth along the slot. A buffer device 4 is arranged between the rear side of the supporting plate 1 and the rear side of the slot. Two pressing devices 5 are arranged on the front side of the bottom plate 2, the pressing devices 5 are distributed on two sides of the slot and are rotatably connected with the bottom plate 2, the pressing devices 5 can be contacted with the front side of the supporting plate 1 by rotating the pressing devices 5, and the supporting plate 1 can be pressed in the slot by matching with the buffer device 4.
Four upright posts 21 are vertically arranged above the bottom plate 2, and the upright posts 21 are distributed in a rectangular shape and are positioned on the outer side of the positioning groove; wherein, the connecting line of the two upright posts 21 which are positioned at one side of the positioning groove and distributed along the front and back direction of the bottom plate 2 is parallel to the connecting line of the two upright posts 21 positioned at the other side of the positioning groove. Two linear moving mechanisms arranged along the front and back directions of the bottom plate 2 are respectively arranged at two sides of the positioning groove and are respectively connected with the upright posts 21 at two sides of the positioning groove; wherein the two linear moving mechanisms are driven by a driving motor 25.
A brushing mechanism is arranged between the two linear moving mechanisms, the brushing mechanism comprises a horizontal plate 12 which is horizontally arranged, and two ends of the horizontal plate 12 are respectively connected with the adjacent linear moving mechanisms through connecting rods 11. A roller 6 is horizontally arranged below the transverse plate 12, the roller 6 is rotatably sleeved on a roller shaft 7, and two ends of the roller shaft 7 are respectively connected with the transverse plate 12 through a lifting structure. A coating film 61 is detachably arranged on the roller 6, and the coating film 61 winds around the roller 6 for a circle; wherein, the two ends of the roller 6 and the coating film 61 extend to the outer sides of the two sides of the positioning groove.
Therefore, the buffer device is arranged on the rear side inside the slot on the bottom plate, and the pressing device is arranged on the front side of the slot, so that the pressing device has a pressing force towards the inner side of the slot on the supporting plate in the slot to limit the ejection of the supporting plate, the supporting plate and the battery substrate on the upper side of the supporting plate are prevented from being displaced in the coating process, and the stability of the coating process is ensured. Moreover, the supporting plate can be adjusted to a proper height through the lifting structure, and the roller shaft is horizontally displaced through the linear moving mechanism, so that the roller rolls, the slurry on the battery substrate can be uniformly coated on the surface of the battery substrate, and the coating precision and uniformity are improved; on the other hand, the friction force between the roller and the battery substrate is reduced in a rolling mode, and the quality of the finished electrode product is improved. During coating, the coating film is used for replacing a mode that a roller is directly contacted with the slurry, after the coating is finished, the coating film only needs to be taken down from the roller, and after the slurry on the surface of the coating film is recovered, the coating film can be discarded; because the roller does not contact with the slurry in the whole coating process, the roller does not need to be cleaned, and the risk of cross contamination is reduced.
The two side walls of the slot are sunken towards the direction deviating from each other to form a sliding groove, the two opposite sides of the supporting plate 1 are located in the sliding groove, and the upper side and the lower side of the supporting plate 1 are correspondingly attached to the upper side and the lower side of the sliding groove. Like this, make things convenient for the displacement of backup pad in the slot, simultaneously, the both sides of backup pad are also fixed by the bottom plate restriction, have strengthened stability. The buffer device 4 comprises a buffer plate 41, the buffer plate 41 is vertically arranged in the slot and is parallel to the rear side wall of the slot, and a plurality of buffer springs 43 are arranged between the rear side of the buffer plate and the rear side wall of the slot; the buffer springs 43 are distributed along the length direction of the buffer plate 41, and two ends of the buffer springs are respectively fixedly connected with the rear side of the buffer plate 41 and the rear side wall of the slot. A clamping groove 42 is formed in the front side of the buffer plate 41 corresponding to the support plate 1, and the rear side of the support plate 1 can be inserted into the clamping groove 42 and clamped with the buffer plate 41; in specific implementation, the buffer board is of an inverted L shape (the lower part of the front side of the buffer board is formed into a clamping groove 42), so that the support board can be effectively pressed in the clamping groove.
Therefore, due to the existence of the buffer spring, when the vibration generated in the coating process is transmitted to the supporting plate, the vibration is buffered by the buffer spring, so that the influence of the vibration on the coating work is reduced, and the coating stability is further ensured; in addition, when the supporting plate is inserted into the slot, the side part of the supporting plate can be inserted into the clamping groove, and the stability of coating is also ensured.
The pressing device 5 comprises a pressing plate 51, one end of the pressing plate 51 is provided with a guide rod 52, a movable sleeve 54 is sleeved on the guide rod 52, the movable sleeve 54 is rotatably connected with the guide rod 52 and can synchronously move along the axial direction of the guide rod 52, a guide groove corresponding to the guide rod 52 is arranged on the front side of the bottom plate 2, the guide rod 52 and the movable sleeve 54 both extend into the guide groove and are in clearance fit with the guide groove, so that the guide rod 52 can freely rotate and slide along the guide groove, and in the rotating process of the guide rod 52, the other end of the pressing plate 51 can form dislocation with the front side of the slot (namely, overlap with the front side of the slot). A compression spring 53 is sleeved on the guide rod 52, one end of the compression spring 53 is fixedly connected with the groove bottom of the guide groove, and the other end of the compression spring 53 is fixedly connected with a movable sleeve 54.
Therefore, one part of the pressing plate is fixed on the bottom plate, and the other part of the pressing plate is contacted with the supporting plate, so that the supporting plate can be tightly pressed in the slot; in addition, the compression spring also slows down the vibration of the working plate during the coating process.
The linear moving mechanism comprises a box body 22, and the box body 22 is connected with the upper ends of the two upright posts 21 on the same side of the positioning groove. A screw rod 9 is arranged in the box body 22 along the length direction of the box body, and two ends of the screw rod 9 are rotatably connected with two ends of the box body 22 through bearings. The screw rod 9 is sleeved with a sliding block 10, the sliding block 10 is connected with the screw rod 9 in a threaded fit mode, and when the screw rod 9 rotates, the sliding block 10 can move along the screw rod 9. Two box bodies 22 one side in opposite directions has seted up a bar hole along its length direction respectively, the upper end of connecting rod 11 is stretched into in the box body 21 towards the bending back of the bar hole direction that corresponds to link to each other with slider 10. The driving motor 25 is located at the rear end of one of the box bodies 21, and a driving motor shaft of the driving motor is connected with the screw rod 9 in the box body 21. A driving wheel is further arranged on a driving motor shaft of the driving motor 25, the screw rod 9 in the other box body extends out from the rear end of the box body 21 and is connected with a driven wheel, the driving wheel and the driven wheel are connected through a transmission belt 24, and the screw rods 9 in the two box bodies 21 can be driven to synchronously rotate through the transmission belt 24. In operation, the drive motor 25 is a forward and reverse drive motor.
This application drives the lead screw through driving motor and rotates, and the lead screw in two boxes bodies passes through the drive belt synchronous rotation, and like this, the nut that cup joints on two lead screws can carry out synchronous horizontal migration to paint the device with a brush through the connecting rod pulling and carry out the displacement, and can make this device with a brush can the high efficiency and even reciprocal basement to the backup pad carry out battery material coating operation through driving motor's corotation and reversal.
The lifting structure 8 comprises two vertically arranged lifting screws 81, the two lifting screws 81 are respectively close to two ends of the transverse plate 12, and the lifting screws 81 vertically penetrate through the transverse plate 12 and are connected with the transverse plate 12 in a threaded fit mode. A connecting block 82 is arranged at the lower end of the lifting screw 81, and the lower end of the lifting screw 81 is connected with the connecting block 82 through a bearing. Two ends of the roller shaft 7 are correspondingly connected with the two connecting blocks 82; wherein, the upper end of the lifting screw 81 is also provided with a turntable 83.
Like this, realize the lift process of connecting block and roller axle through rotating lifting screw to the diaphragm can not follow lifting screw and rotate yet, makes the motion between elevation structure and the rectilinear movement mechanism noninterference, can fix a position the device of applying paint with a brush to arbitrary position.
Wherein, two fixing devices are arranged on the roller 6, the two fixing devices are respectively positioned at the outer sides of the two sides of the positioning groove, preferably respectively close to the two ends of the roller 6, and the coating film 61 is fixedly connected with the roller 6 through the fixing devices; wherein, the fixing device comprises an annular fixing sleeve 62, and the fixing sleeve 62 is used for being sleeved on the coating film 61 to fix the coating film 61 and the roller 6. A fixed block 63 is further arranged on the outer side of the fixed sleeve 62, one end of the fixed block 63 is connected with the fixed sleeve 62, and the other end of the fixed block 63 extends towards the positioning groove; a fixing bolt 64 is vertically arranged at one end of the fixing block 63 far away from the fixing sleeve 62; wherein both ends of the coating film 6 have an overlapped portion, and the fixing bolt 64 is opposed to the overlapped portion and presses the overlapped portion against the roller 6.
The width of the slot is larger than that of the battery substrate, so that the battery substrate can not be contacted with the bottom plate when the support plate is inserted into the bottom plate.
When the solar cell is implemented, the support plate 1 is made of tempered glass, and the cell substrate is embedded on the upper side of the tempered glass.
Wherein, a fixing hole 55 is further arranged on one side of the pressing plate 51 far away from the guide rod 52, fixing rods 26 corresponding to the fixing hole 55 are arranged on the two upright posts 21 near the front side of the bottom plate 2, and after the pressing plate 51 rotates around the axial lead of the guide rod 52, the fixing hole 55 can be opposite to the fixing rod 26 and sleeved in the fixing rod 26. In actual operation, the pressing plate 51 is pulled forward, the compression spring 53 is in a stretching state, then the pressing plate 51 is rotated (at this time, the supporting plate 1 is partially popped out from the slot) to align the fixing hole 55 with the fixing rod 26, and then the hand is released, at this time, the pressing plate 51 is displaced backward under the restoring force of the compression spring 53, and the fixing hole 55 is also sleeved in the fixing rod 26 to fix the pressing plate 51, so that the pressing plate 51 is prevented from rotating under the action of gravity.
Therefore, one part of the pressing plate is fixed on the bottom plate, and the other part of the pressing plate is contacted with the supporting plate, so that the supporting plate can be tightly pressed in the slot; in addition, the compression spring also slows down the vibration of the working plate during the coating process.
Wherein the orthographic projection width of the coating film 61 is larger than the width of the substrate 3, so that the coating film 61 can be kept with a fixed coating gap with the substrate completely and uniformly.
Wherein the distance between the two fixtures is greater than the horizontal width of the substrate 3, preventing the fixtures from contacting the substrate during the rotation of the roller 6.
The application of the coating system is as follows:
before coating, firstly, the supporting plate 1 and the substrate 3 embedded at the top thereof are inserted into the slot through the inserting opening of the bottom plate 2, the rear side of the supporting plate 1 presses the buffer device 4 backwards, then the pressing plate 51 is pulled forwards, the fixing hole 55 on the pressing plate 51 is separated from the fixing rod 26, the pressing plate 51 is rotated, the pressing plate 51 is aligned with the front side of the supporting plate 1, the pressing plate 51 is released, due to the rebounding action of the compression spring 53, the pressing plate 51 presses the supporting plate 1 tightly at the moment (the pressing plate 51 is contacted with the supporting plate 1 in a normal state, the pressing plate 51 is pulled outwards and released after rotation, the pressing plate 51 is sleeved outside the fixing rod 26 due to the action of the compression spring 53), then the coating film 61 is paved on the outer surface of the roller 6 (the shape of the coating film 61 after being unfolded is rectangular, the shape of the coating film after being paved on the surface of the roller 6 is a hollow cylindrical shape, tightening the fixing bolt 64 to fix the coating film 61 and the roller 6 together, pouring the slurry on the middle part of the surface of the substrate 3, rotating the turntable 83, rotating the lifting screw 81 at the moment, and stopping after the lifting screw is lowered to a proper height according to the thickness of the coating film 61;
during coating, the output shaft of the driving motor 14 and the transmission belt 24 drive the lead screws in the two box bodies 22 to synchronously rotate, so that nuts in threaded sleeve joint on the lead screws horizontally move, meanwhile, the coating device synchronously and horizontally moves, at the moment, the connecting rod 11 drives the transverse plate 12 to synchronously and horizontally move together, the roller 6 can roll above the substrate 3, and meanwhile, the coating system can carry out reciprocating coating by changing the rotating direction of the driving motor 14, so that the high efficiency and uniformity of coating are ensured;
the driving motor 14 is turned off, the coating operation is finished, the lifting screw 81 is rotated to enable the roller 6 to ascend, then the fixing bolt 64 is unscrewed, the coating film 61 is carefully taken off from the roller 6, the pressing plate 51 is pulled towards the rear side, after the pressing plate 51 is separated from the supporting plate 1, the pressing plate 51 is rotated to be in a vertical state (because the compression spring 53 has certain torsion), then after the fixing hole 55 is aligned with the fixing rod 26, the pressing plate 51 is loosened, the pressing plate 51 can be sleeved on the fixing rod 26, at the moment, the buffer spring 43 which is compressed all the time rebounds to drive the buffer plate 41 to pop out, at the moment, the supporting plate 1 is popped out by one end distance from the inside of the bottom plate 2, at the moment, the supporting plate 1 can be pulled to take out the coated substrate 3.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (10)
1. A lithium/sodium ion battery universal electrode coating system comprises a bottom plate, and is characterized in that:
the upper side of the bottom plate is provided with a slot which penetrates through the front side of the bottom plate, so that a socket is formed on the front side of the bottom plate; a supporting plate is arranged in the slot, and a positioning groove for mounting a substrate is arranged on the upper side of the supporting plate; the two sides of the supporting plate are connected with the two sides of the slot in a sliding fit manner, so that the supporting plate can move back and forth along the slot; a buffer device is arranged between the rear side of the supporting plate and the rear side of the slot; the front side of the bottom plate is provided with two pressing devices, the pressing devices are distributed on two sides of the slot and are rotatably connected with the bottom plate, and the pressing devices can be contacted with the front side of the supporting plate by rotating the pressing devices and can be matched with the buffer device to press the supporting plate in the slot;
four upright posts are vertically arranged above the bottom plate, the upright posts are distributed in a rectangular shape and are positioned at the outer side of the positioning groove, and a connecting line of the two upright posts which are positioned at one side of the positioning groove and distributed along the front-back direction of the bottom plate is parallel to a connecting line of the two upright posts positioned at the other side of the positioning groove; two linear moving mechanisms are respectively arranged on two sides of the positioning groove along the front-back direction of the bottom plate and are respectively connected with the upright posts on two sides of the positioning groove, wherein the two linear moving mechanisms are driven by a driving motor;
a brushing mechanism is arranged between the two linear moving mechanisms, the brushing mechanism comprises a horizontal plate which is horizontally arranged, and two ends of the horizontal plate are respectively connected with the adjacent linear moving mechanisms through connecting rods; a roller is horizontally arranged below the transverse plate, the roller is rotatably sleeved on a roller shaft, and two ends of the roller shaft are respectively connected with the transverse plate through a lifting structure; a coating film is detachably arranged on the roller and winds around the roller for a circle; wherein, the two ends of the roller and the coating film extend to the outer sides of the two sides of the positioning groove.
2. The coating system for a universal electrode of a lithium/sodium ion battery as claimed in claim 1, wherein two side walls of the slot are recessed in a direction away from each other to form a sliding slot, two opposite sides of the supporting plate are located in the sliding slot, and the upper and lower sides of the supporting plate are correspondingly attached to the upper and lower sides of the sliding slot.
3. The coating system of claim 2, wherein the buffer device comprises a buffer plate vertically disposed in the slot and parallel to the rear sidewall of the slot, and a plurality of buffer springs disposed between the rear side of the buffer plate and the rear sidewall of the slot; the buffer springs are distributed along the length direction of the buffer plate, and two ends of the buffer springs are fixedly connected with the rear side of the buffer plate and the rear side wall of the slot respectively; the front side of the buffer board corresponds to the support board and is provided with a clamping groove, and the rear side of the support board can be inserted into the clamping groove and is clamped with the buffer board.
4. The coating system of the universal electrode of the lithium/sodium ion battery as claimed in claim 1, wherein the compressing device comprises a compressing plate, one end of the compressing plate is provided with a guide rod, a movable sleeve is sleeved on the guide rod, and the movable sleeve is rotatably connected with the guide rod and can synchronously move along the axial direction of the guide rod along with the guide rod; a guide groove corresponding to the guide rod is arranged on the front side of the bottom plate, the guide rod and the movable sleeve both extend into the guide groove and are in clearance fit with the guide groove, so that the guide rod can freely rotate and slide along the guide groove, and in the rotating process of the guide rod, the other end of the compression plate can be staggered with the front side of the slot; the guide rod is sleeved with a compression spring, one end of the compression spring is fixedly connected with the bottom of the guide groove, and the other end of the compression spring is fixedly connected with the movable sleeve.
5. The coating system for a lithium/sodium ion battery universal electrode as claimed in claim 4, wherein the pressing plate is further provided with fixing holes at a side thereof away from the guide rods, fixing rods corresponding to the fixing holes are provided at the two pillars near the front side of the base plate, and the pressing plate is capable of allowing the fixing holes to face the fixing rods and to be fitted into the fixing rods after rotating around the axis of the guide rods.
6. The coating system of the universal electrode for the lithium/sodium ion battery according to claim 1, wherein the linear moving mechanism comprises a box body, the box body is connected with the upper ends of the two vertical columns on the same side of the positioning groove, a screw rod is arranged in the box body along the length direction of the box body, and two ends of the screw rod are rotatably connected with two ends of the box body; the screw rod is sleeved with a sliding block, the sliding block is in threaded fit connection with the screw rod, and when the screw rod rotates, the sliding block can move along the screw rod; one side of each of the two box bodies, which is opposite to the other side, is provided with a strip-shaped hole along the length direction of the box body, and the upper end of each connecting rod is bent towards the corresponding strip-shaped hole and then extends into the box body and is connected with the sliding block; the driving motor is positioned at the rear end of one box body, and a driving motor shaft of the driving motor is connected with a screw rod in the box body; the driving motor is characterized in that a driving wheel is further arranged on a driving motor shaft of the driving motor, a screw rod in the other box body extends out of the rear end of the box body and is connected with a driven wheel, the driving wheel and the driven wheel are connected through a transmission belt, and the screw rods in the two box bodies can be driven to synchronously rotate through the transmission belt.
7. The coating system of the lithium/sodium ion battery universal electrode as claimed in claim 1, wherein the lifting structure comprises two vertically arranged lifting screws, the two lifting screws are respectively close to two ends of the transverse plate, and the lifting screws vertically penetrate through the transverse plate and are in threaded fit with the transverse plate; the lower end of the lifting screw is provided with a connecting block, and the lower end of the lifting screw is connected with the connecting block through a bearing; and two ends of the roller shaft are correspondingly connected with the two connecting blocks.
8. The coating system for a lithium/sodium ion battery common electrode according to claim 7, wherein a turntable is further provided at an upper end of the elevating screw.
9. The coating system for a universal electrode of a lithium/sodium ion battery according to claim 1, wherein two fixing means are provided on the roller, the two fixing means being located at the outer sides of both sides of the positioning groove, respectively, and the coating film is fixedly connected to the roller through the fixing means; the fixing device comprises an annular fixing sleeve, and the fixing sleeve is used for being sleeved on the coating film to fix the coating film and the roller.
10. The coating system for a universal electrode of a li/na-ion battery as set forth in claim 9, wherein a fixing block is further provided at an outer side of the fixing pouch, one end of the fixing block being connected to the fixing pouch, and the other end thereof extending toward the positioning groove; a fixing bolt is also vertically arranged at one end of the fixing block, which is far away from the fixing sleeve; wherein, the two ends of the coating film are provided with overlapped parts, the fixing bolt is opposite to the overlapped parts and presses the overlapped parts on the roller.
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| CN202010616573.2A CN111715461B (en) | 2020-06-30 | 2020-06-30 | Universal electrode coating system for lithium/sodium ion battery |
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| CN202010616573.2A CN111715461B (en) | 2020-06-30 | 2020-06-30 | Universal electrode coating system for lithium/sodium ion battery |
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| CN113289869A (en) * | 2021-05-28 | 2021-08-24 | 深圳市长方集团股份有限公司 | LED packaging adhesive coating device |
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Effective date of registration: 20230719 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: No. 16, Fuling District, Chongqing, Chongqing Patentee before: YANGTZE NORMAL University Effective date of registration: 20230719 Address after: 413000 South of Guanlai Road, Changchun Economic Development Zone, Changchun Town, Ziyang District, Yiyang, Hunan Province, east of Jingyi Electronics Patentee after: Hunan Yifang Adhesive Tape Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. |
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