CN117096282A - Sodium ion battery pole piece treatment facility - Google Patents
Sodium ion battery pole piece treatment facility Download PDFInfo
- Publication number
- CN117096282A CN117096282A CN202311329894.4A CN202311329894A CN117096282A CN 117096282 A CN117096282 A CN 117096282A CN 202311329894 A CN202311329894 A CN 202311329894A CN 117096282 A CN117096282 A CN 117096282A
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- Prior art keywords
- seat
- sliding
- roller
- baffle
- ion battery
- Prior art date
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- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 56
- 238000003825 pressing Methods 0.000 claims abstract description 133
- 238000004519 manufacturing process Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 27
- 239000003507 refrigerant Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims 4
- 238000003466 welding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 38
- 238000007906 compression Methods 0.000 description 38
- 230000000903 blocking effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001915 proofreading effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Classifications
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses sodium ion battery pole piece treatment equipment, and relates to the technical field of sodium ion battery production. The invention comprises a primary pressing piece, wherein the primary pressing piece comprises a fixed frame, a mounting seat, a pressing roller and a driving assembly, wherein one pressing roller and one mounting seat are assembled into one pressing roller piece, and the two pressing roller pieces are arranged on the fixed frame in an up-down opposite way; the driving component comprises a driving piece, a plurality of conductive connecting rods and conductive teeth, wherein the conductive connecting rods are movably arranged on the fixing frame and are connected with the conductive teeth, and the driving piece is matched with the press roller through the conductive connecting rods and the conductive teeth; the invention is designed by arranging the press rolls separately, can facilitate the replacement and maintenance of the press surfaces of the press rolls, can be directly locked after the distance between the press roll parts is adjusted by arranging the transmission parts, and does not need to consider the problem of changing the rotating speeds of the upper press roll and the lower press roll caused by changing the distance.
Description
Technical Field
The invention belongs to the technical field of sodium ion battery production, and particularly relates to sodium ion battery pole piece treatment equipment.
Background
The sodium ion battery is used as a new technical direction, so that the use safety of the battery can be effectively improved, and sodium elements are widely distributed in the nature, so that the sodium ion battery is convenient to obtain; in the production process of sodium ion batteries, in order to improve the conversion efficiency of the batteries and pull up the energy density of the batteries, sodium ion battery pole pieces are extremely important in the production of the batteries.
The sodium ion battery pole piece needs to undergo a plurality of procedures, wherein the cold pressing process directly determines the product yield of the sodium ion battery pole piece production. At present, the common battery production process is one-time cold pressing, but the one-time cold pressing has poor digestion capability on the internal stress of the battery pole piece, and has great influence on the yield of the product. The secondary cold pressing process effectively alleviates this problem. With the acceleration of technical iteration, the equipment for cold pressing the battery pole piece also needs to be replaced along with the technical iteration, and the problems of troublesome replacement of the compression roller, high economic cost and time cost of replacement and the like in cold pressing are particularly obvious in the situation.
Disclosure of Invention
The invention aims to provide sodium ion battery pole piece treatment equipment, which solves the existing problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to sodium ion battery pole piece treatment equipment, which comprises secondary cold pressing equipment, wherein the secondary cold pressing equipment comprises a primary pressing piece, a primary pressing piece treatment production line, a secondary pressing piece treatment production line and temperature control equipment, and the primary pressing piece is sequentially connected with the primary pressing piece treatment production line, the secondary pressing piece and the secondary pressing piece treatment production line and is connected with the temperature control equipment; after the sodium ion battery pole piece enters the equipment, starting from a primary pressing part to finishing a secondary pressing part processing production line, wherein the primary pressing part and the secondary pressing part have the same structure, the primary pressing part processing production line and the secondary pressing part processing production line both comprise drying equipment and cooling processing equipment, and the cooling equipment is arranged at a lower station of the drying equipment; when a sodium ion battery pole piece to be treated enters treatment equipment, carrying out primary pressing piece cold pressing, enabling the sodium ion battery pole piece after the pressing piece to enter a treatment production line of the primary pressing piece, carrying out drying and cooling treatment, carrying out secondary pressing piece cold pressing after cooling, and carrying out drying and cooling after secondary pressing piece cold pressing to obtain a qualified sodium ion battery pole piece;
the primary pressing piece comprises a fixing frame, a mounting seat, pressing rollers and a driving assembly, wherein one pressing roller and one mounting seat are assembled into one pressing roller piece, and the two pressing roller pieces are arranged on the fixing frame in an up-down opposite mode; the driving component comprises a driving piece, a plurality of conductive connecting rods and conductive teeth, wherein the conductive connecting rods are movably arranged on the fixing frame and are connected with the conductive teeth, and the driving piece is matched with the press roller through the conductive connecting rods and the conductive teeth; the fixing frame is arranged in the processing equipment and used for fixing the compression roller and the driving component; the driving assembly provides power output for the press roller, and when the sodium ion battery pole piece passes through the space between the upper press roller piece and the lower press roller piece, the rolling press roller presses the sodium ion battery pole piece to finish cold pressing operation;
the temperature control equipment is connected with the press roller and is used for monitoring and controlling the temperature of the surface of the press roller, so that the problem that the process does not reach the standard and the product yield is reduced due to temperature rise caused by heat accumulation on the press roller when excessive sodium ion battery pole pieces pass through the press roller is prevented.
Preferably, the fixing frame comprises fixing plates, limit holes are formed in the side surfaces of the fixing plates, symmetrical screw rods are connected between the two fixing plates, the symmetrical screw rods are rotatably installed in the limit holes, rectangular sliding holes are formed in the side surfaces of the fixing plates, sliding grooves are formed in two opposite inner side surfaces of the sliding holes, sliding seats are connected in the sliding grooves in a sliding mode, and a fixing seat is fixedly installed below the sliding grooves; the sliding seat and the fixing seat are used for installing two opposite compression roller pieces, the compression roller pieces installed on the sliding seat can slide along with the sliding seat, the compression roller pieces installed on the fixing seat cannot move, the distance between the two compression roller pieces is adjusted by controlling the height of the sliding seat, and operations such as precision debugging and size replacement are facilitated.
Wherein, a baffle is movably arranged on the symmetrical screw rod, the baffle is fixed on the inner surface of the sodium ion battery pole piece treatment equipment, screw threads with opposite screw directions are respectively arranged on the peripheral side surfaces of the symmetrical screw rods on two sides of the baffle, a screw thread seat is respectively arranged on two sides of the baffle, the two screw thread seats are matched with the screw threads of the symmetrical screw rod to form a screw rod structure, the initial distance between the two screw thread seats and the baffle is the same, so that the distance between the two screw thread seats and the baffle is always the same in the adjusting process, the heights of the two sliding seats connected to the screw thread seats through the connecting rod are the same, and the procedure of horizontal correction is reduced; the baffle is used for limiting and reinforcing the symmetrical screw on one hand and blocking the two thread seats on the other hand, and when a fault occurs, the two thread seats are not positioned on the same side;
the fixing device comprises a fixing seat, a fixing limiting groove, a fixing side plate and a plurality of holes, wherein the fixing limiting groove is formed in the side surface of the fixing seat, the fixing side plate is fixedly connected to the other side surface of the fixing seat, and the fixing side plate is provided with the plurality of holes; the sliding seat is provided with a sliding limiting groove on the side surface, the other side surface of the sliding seat is fixedly connected with a sliding side plate, and a plurality of holes are formed in the sliding side plate; the positions of the openings on the fixed side plate and the sliding side plate are corresponding, and the sizes are the same; the upper surface of the sliding seat is welded with a connecting seat, the connecting seat is connected with a threaded seat through a connecting rod, and the connecting rod is in rotary connection with the connecting seat and the threaded seat; the fixed side plate and the sliding side plate are used for fixing and limiting the transmission connecting rod and the transmission teeth, and as the compression roller pieces are arranged in an upper compression roller piece and a lower compression roller piece, the distance between the upper compression roller piece and the lower compression roller piece is required to be adjusted, the position of the transmission teeth on the sliding side plate and the position of the sliding seat are kept relatively static, the position of the transmission teeth on the fixed side plate and the position of the fixed seat are kept relatively static, the power of the driving piece is uniformly transmitted through the transmission connecting rod, the stress at two ends of the compression roller can be balanced when the compression roller is driven, deformation of the surface of the compression roller caused by force application at one end for a long time is prevented, and the cold pressing yield of the sodium ion electrode sheet is further influenced.
Preferably, two support plates are arranged on one surface of the mounting seat, a semicircular clamping groove is formed in one side of each support plate, an arc buckle is connected to each clamping groove through a hinge, and the clamping groove and the arc buckle are mutually matched to form an annular structure; the inner surface of the clamping groove is provided with a groove; limiting plates are arranged on two opposite end surfaces of the mounting seat, and are in plug-in connection with the fixed limiting grooves or the sliding limiting grooves.
Preferably, the press roller comprises a roller, an inner pipe, a seat surface, a sleeve and a press surface, and is of a pipe body structure; the inner tube is movably arranged in the roller, the outer surface of the roller is fixedly connected with the seat surface, and the outer surface of the sleeve is fixedly connected with the pressing surface; the outer surface of the seat surface is provided with a plurality of protrusions, the inner surface of the sleeve is provided with a plurality of notches, and the protrusions and the notches are mutually nested and matched; the sleeve is nested on the outer surface of the seat surface; the inner pipe is connected with temperature control equipment; the compression roller is mainly divided into three parts, namely a roller and a seat surface which play a supporting and fixing role in order to conduct the inner pipe of the refrigerant, and a sleeve and a compression surface which are convenient to replace; because the sodium ion battery pole piece is produced and is required to be coated with materials on the surface of the aluminum foil current collector, the roughness degree and the particle size of the pressed surface are different by coating different materials, and therefore, the pressed surface with different roughness degrees and particle sizes is arranged on the peripheral side surface of the sleeve by taking the sleeve as a substrate, the time cost of equipment debugging caused by technical iteration, change of a demand party and the like can be reduced in the production process of the sodium ion battery pole piece.
The circumference of the roller is fixedly connected with two baffle seats, the two baffle seats are respectively arranged on two sides of the seat surface, the outer surface of each baffle seat is connected with a baffle ring, and the outer diameter of each baffle ring is larger than the inner diameter of the sleeve and smaller than the outer diameter of the pressing surface; the outer surface of the baffle seat is provided with a plurality of baffle grooves, the peripheral side surface of the baffle ring is provided with a plurality of through pin holes, the positions of the pin holes are opposite to the baffle grooves, the pin holes are internally provided with bolts, and one ends of the bolts extend into the baffle grooves; a lock hole is formed in one side, far away from the seat surface, of the blocking seat, the lock hole penetrates through the blocking groove, a lock pin is movably connected in the lock hole, a reset groove is formed in one side, close to the blocking groove, of the inner surface of the lock hole, a reset plate is mounted on Zhou Cemian of the lock pin, the reset plate is located in the reset groove, and a reset elastic piece is further arranged in the reset groove and is in elastic fit with the reset plate; the lock pin is matched with the bolt in a clamping way; the retaining seat is used for installing the retaining rings, and the sleeve and the pressing surface are fixed on the seat surface through the two retaining rings, so that the retaining seat is not easy to sideslip; through setting up the cooperation of keeping off groove, lockpin, reset groove, reset spring and reset plate, under the prerequisite that does not influence the use, improve the installation effectiveness of keeping off the ring.
The roller is also provided with two sliding shafts and two driving teeth, the two sliding shafts and the two driving teeth are respectively arranged at two ends of the roller, and the driving teeth, the sliding shafts and the baffle rings are arranged inwards from the two ends of the roller in sequence; the sliding shaft provides supporting force for the roller, reduces friction force between the roller and the sliding shaft through a bearing structure, and improves rotation efficiency of the roller; the same torque is obtained from the conductive teeth simultaneously by both drive teeth.
Wherein the sliding shaft is in clamping fit with the clamping groove; the drive teeth are meshed with the conduction teeth; the reset spring is a reset spring, and the reset spring pushes the reset plate so as to drive the lock pin to clamp the bolt.
Preferably, the driving member is an electric motor; the driving piece still need use the driving piece when connecting with partial conduction tooth, the driving piece is the duplex universal joint, through the driving piece of duplex universal joint, realizes when the sliding seat slides to different heights, can both obtain the same rotation angular velocity, just can obtain the same linear velocity when the conduction tooth that duplex universal joint both ends are connected's size is the same, and when using like this, need not too loaded down with trivial details proofreading just can realize the quick regulation between two compression roller pieces.
Preferably, the temperature control equipment comprises a temperature sensor, a temperature adjusting device, a connecting pipeline and a refrigerant, wherein the temperature sensor is arranged on a primary pressing piece, a primary pressing piece processing production line, a secondary pressing piece processing production line, the temperature sensor is electrically connected with the temperature adjusting device, the temperature adjusting device is connected with the connecting pipeline, the refrigerant is arranged in the connecting pipeline, the connecting pipeline is communicated with the inner pipe, the temperature of the refrigerant is controlled through the temperature adjusting equipment, and then the ambient temperature of each working procedure is controlled by the refrigerant.
The invention has the following beneficial effects:
according to the invention, the space can be more easily and accurately adjusted by using the screw rod structure of the symmetrical screw rod, the press surface of the press roller can be conveniently replaced and maintained by arranging the separation type design of the press roller, and the transmission piece can be directly locked after the space is adjusted by the press roller piece, so that the problem of change of the rotating speeds of the upper press roller and the lower press roller caused by change of the distance is not needed to be considered.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the internal structure of a primary compression element of the present invention;
FIG. 2 is a side view of the internal structure of the primary compression element of the present invention;
FIG. 3 is a schematic view of a fixing plate structure according to the present invention;
FIG. 4 is a side view of a mounting plate of the present invention;
FIG. 5 is a schematic view of the cross-sectional structure A-A of FIG. 4;
FIG. 6 is a schematic view of a press roll member according to the present invention;
FIG. 7 is a schematic view of a mounting base according to the present invention;
FIG. 8 is a schematic view of a press roll structure according to the present invention;
FIG. 9 is a side view of a press roll of the present invention;
FIG. 10 is a schematic view of the cross-sectional structure B-B in FIG. 9;
fig. 11 is a partial enlarged view of a portion a in fig. 10.
In the drawings, the list of components represented by the various numbers is as follows:
1. a fixing frame; 2. a mounting base; 3. a press roller; 4. a drive assembly; 101. a fixing plate; 102. a symmetrical screw; 103. a fixing seat; 104. a sliding seat; 1011. a slide hole; 1012. a chute; 1013. a limiting hole; 1021. a baffle; 1022. a screw seat; 1023. a connecting rod; 1031. a fixed limit groove; 1032. fixing the side plates; 1041. a connecting seat; 1042. sliding the side plates; 1043. a sliding limit groove; 201. a clamping groove; 202. arc buckles; 301. a roller; 302. an inner tube; 303. a seat surface; 304. a sleeve; 305. pressing the surface; 306. a slide shaft; 307. a drive tooth; 308. a baffle ring; 3011. a blocking seat; 3012. a blocking groove; 3013. a locking pin; 3014. a reset groove; 3015. resetting the spring piece; 3081. a plug pin; 401. a driving member; 402. a transmission member; 403. a conductive link; 404. conductive teeth.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, the present invention is a sodium ion battery pole piece treatment device, comprising a secondary cold pressing device, wherein the secondary cold pressing device comprises a primary pressing piece treatment production line, a secondary pressing piece treatment production line and a temperature control device, and the primary pressing piece is sequentially connected with the primary pressing piece treatment production line, the secondary pressing piece and the secondary pressing piece treatment production line and is connected with the temperature control device; after the sodium ion battery pole piece enters the equipment, starting from a primary pressing part to finishing a secondary pressing part processing production line, wherein the primary pressing part and the secondary pressing part have the same structure, the primary pressing part processing production line and the secondary pressing part processing production line both comprise drying equipment and cooling processing equipment, and the cooling equipment is arranged at a lower station of the drying equipment; when a sodium ion battery pole piece to be treated enters treatment equipment, carrying out primary pressing piece cold pressing, enabling the sodium ion battery pole piece after the pressing piece to enter a treatment production line of the primary pressing piece, carrying out drying and cooling treatment, carrying out secondary pressing piece cold pressing after cooling, and carrying out drying and cooling after secondary pressing piece cold pressing to obtain a qualified sodium ion battery pole piece;
the primary pressing piece comprises a fixing frame 1, a mounting seat 2, pressing rollers 3 and a driving assembly 4, wherein one pressing roller 3 and one mounting seat 2 are assembled into one pressing roller piece, and the two pressing roller pieces are arranged on the fixing frame 1 in an up-down opposite manner; the driving component 4 comprises a driving piece 401, a plurality of conductive connecting rods 403 and conductive teeth 404, wherein the conductive connecting rods 403 are movably arranged on the fixed frame 1 and are connected with the conductive teeth 404, and the driving piece 401 is matched with the press roller 3 through the conductive connecting rods 403 and the conductive teeth 404; the fixing frame 1 is arranged in the treatment equipment and is used for fixing the compression roller 3 and the driving component 4; the driving component 4 provides power output for the press roller 3, and when the sodium ion battery pole piece passes through the space between the upper press roller piece and the lower press roller piece, the rolling press roller 3 extrudes the sodium ion battery pole piece to finish cold pressing operation;
wherein, control by temperature change equipment is connected with compression roller 3, and control by temperature change equipment is used for monitoring and controlling the temperature on compression roller 3 surface, prevents to lead to the temperature to rise because of excessive sodium ion battery pole piece when passing through compression roller 3, and then causes technology not up to standard, reduces the problem of product yield.
The fixing frame 1 comprises fixing plates 101, limit holes 1013 are formed in the side surfaces of the fixing plates 101, symmetrical screws 102 are connected between the two fixing plates 101, the symmetrical screws 102 are rotatably installed in the limit holes 1013, rectangular sliding holes 1011 are formed in the side surfaces of the fixing plates 101, sliding grooves 1012 are formed in two opposite inner side surfaces of the sliding holes 1011, sliding seats 104 are slidably connected in the sliding grooves 1012, and fixing seats 103 are fixedly installed below the sliding grooves 1012; the sliding seat 104 and the fixing seat 103 are used for installing two opposite compression roller pieces, the compression roller pieces installed on the sliding seat 104 can slide along with the sliding seat 104, the compression roller pieces installed on the fixing seat 103 cannot move, the distance between the two compression roller pieces is adjusted by controlling the height of the sliding seat 104, and operations such as precision debugging and size replacement are facilitated.
Wherein, a baffle 1021 is movably installed on the symmetrical screw 102, the baffle 1021 is fixed on the inner surface of sodium ion battery pole piece processing equipment, threads with opposite spiral directions are respectively arranged on the peripheral sides of the symmetrical screw 102 on two sides of the baffle 1021, a thread seat 1022 is respectively installed on two sides of the baffle 1021, the two thread seats 1022 are in threaded fit with the symmetrical screw 102 to form a screw rod structure, the initial distance between the two thread seats 1022 and the baffle 1021 is the same, thus the distance between the two thread seats 1022 and the baffle 1021 is always the same in the adjusting process, the heights of two sliding seats 104 connected on the thread seats 1022 through a connecting rod 1023 are further the same, and the procedure of horizontal correction is reduced; the baffle 1021 is used for limiting and reinforcing the symmetrical screw 102 on one hand and blocking the two threaded seats 1022 on the other hand, and when a fault occurs, the two threaded seats 1022 are not positioned on the same side;
the fixing base 103 is provided with a fixing limit groove 1031 on a side surface thereof, the other side surface of the fixing base 103 is fixedly connected with a fixing side plate 1032, and a plurality of openings are formed in the fixing side plate 1032; a sliding limit groove 1043 is arranged on the side surface of the sliding seat 104, a sliding side plate 1042 is fixedly connected to the other side surface of the sliding seat 104, and a plurality of openings are arranged on the sliding side plate 1042; the fixed side plate 1032 and the sliding side plate 1042 have corresponding openings with the same size; the upper surface of the sliding seat 104 is welded with a connecting seat 1041, the connecting seat 1041 is connected with the threaded seat 1022 through a connecting rod 1023, and the connecting rod 1023 is rotationally connected with the connecting seat 1041 and the threaded seat 1022; the fixed side plate 1032 and the sliding side plate 1042 are both used for fixing and limiting the transmission connecting rod 403 and the transmission teeth 404, and because the upper and lower compression roller members are arranged and the distance between the upper and lower compression roller members needs to be adjusted, the position of the transmission teeth 404 on the sliding side plate 1042 should be kept relatively static with the position of the sliding seat 104, the position of the transmission teeth 404 on the fixed side plate 1032 should be kept relatively static with the position of the fixed seat 103, the power of the driving member 401 is uniformly transmitted through the transmission connecting rod 403, and when the compression roller 3 is driven, the stress at two ends of the compression roller 3 can be balanced, so that the surface deformation of the compression roller 3 caused by the application of force at one end for a long time is prevented, and the cold pressing yield of the sodium ion electrode sheet is further affected.
Two support plates are arranged on one surface of the mounting seat 2, a semicircular clamping groove 201 is formed in one side of each support plate, an arc buckle 202 is connected to the clamping groove 201 through a hinge, and the clamping groove 201 and the arc buckle 202 are matched with each other to form an annular structure; the inner surface of the clamping groove 201 is provided with a groove; limiting plates are arranged on two opposite end faces of the mounting seat 2 and are in plug-in fit with the fixed limiting grooves 1031 or the sliding limiting grooves 1043.
The compression roller 3 comprises a roller 301, an inner pipe 302, a seat surface 303, a sleeve 304 and a compression surface 305, and is of a pipe body structure; the inner tube 302 is movably arranged in the roller 301, the outer surface of the roller 301 is fixedly connected with the seat surface 303, and the outer surface of the sleeve 304 is fixedly connected with the pressing surface 305; the outer surface of the seat surface 303 is provided with a plurality of protrusions, the inner surface of the sleeve 304 is provided with a plurality of notches, and the protrusions and the notches are mutually nested and matched; the sleeve 304 is nested on the outer surface of the seat surface 303; the inner tube 302 is connected with a temperature control device; the compression roller 3 is mainly divided into three parts, namely a roller 301 and a seat surface 303 which play a supporting and fixing role in order to conduct the inner pipe 302 of the refrigerant, a sleeve 304 and a compression surface 305 which are convenient to replace; because the sodium ion battery pole piece is produced and needs to be coated with materials on the surface of the aluminum foil current collector, the roughness degree and the particle size of the pressed surface 305 are different by coating different materials, and therefore, the pressed surface 305 with different roughness degrees and particle sizes is arranged on the peripheral side surface of the sleeve 304 as a substrate, the time cost of equipment debugging caused by technical iteration, change of a demand party and the like can be reduced in the production process of the sodium ion battery pole piece.
The circumference of the roller 301 is also fixedly connected with two baffle seats 3011, the two baffle seats 3011 are respectively arranged at two sides of the seat surface 303, the outer surface of the baffle seat 3011 is connected with a baffle ring 308, and the outer diameter of the baffle ring 308 is larger than the inner diameter of the sleeve 304 and smaller than the outer diameter of the pressing surface 305; the outer surface of the baffle base 3011 is provided with a plurality of baffle grooves 3012, the peripheral side surface of the baffle ring 308 is provided with a plurality of through pin holes, the positions of the pin holes are opposite to the baffle grooves 3012, the pin holes are internally provided with bolts 3081, and one ends of the bolts 3081 extend into the baffle grooves 3012; a lock hole is formed in one side, far away from the seat surface 303, of the blocking seat 3011, the lock hole penetrates through the blocking groove 3012, a lock pin 3013 is movably connected in the lock hole, a reset groove 3014 is formed in one side, close to the blocking groove 3012, of the inner surface of the lock hole, a Zhou Cemian of the lock pin 3013 is provided with a reset plate, the reset plate is positioned in the reset groove 3014, a reset elastic piece 3015 is further arranged in the reset groove 3014, and the reset elastic piece 3015 is in elastic fit with the reset plate; the lock pin 3013 is matched with the lock pin 3081 in a clamping way; in order to install the baffle ring 308, the baffle base 3011 fixes the sleeve 304 and the pressing surface 305 on the base surface 303 through two baffle rings 308, so that the sleeve is not easy to slide; by providing the cooperative engagement of the blocking groove 3012, the lock pin 3013, the reset groove 3014, the reset spring 3015 and the reset plate, the installation efficiency of the blocking ring 308 is improved without affecting use.
The roller 301 is also provided with two sliding shafts 306 and two driving teeth 307, the two sliding shafts 306 and the two driving teeth 307 are respectively arranged at two ends of the roller 301, and the driving teeth 307, the sliding shafts 306 and the baffle rings 308 are respectively arranged inwards from the two ends of the roller 301 in sequence; the sliding shaft 306 provides supporting force for the roller 301, and reduces friction force between the roller 301 and the sliding shaft 306 through a bearing structure, so that the rotation efficiency of the roller 301 is improved; the same torque is obtained from the conducting teeth 404 simultaneously by both driving teeth 307.
Wherein, the sliding shaft 306 is matched with the clamping groove 201 in a clamping way; the drive teeth 307 engage the conductive teeth 404; the reset spring 3015 is a reset spring, and the reset spring 3015 pushes the reset plate, so as to drive the lock pin 3013 to clamp the bolt 3081.
Wherein the driving member 401 is a motor; the driving piece 401 still needs to use driving piece 402 when connecting with some conducting teeth 404, and driving piece 402 is the duplex universal joint, through duplex universal joint's driving piece 402, realizes when sliding seat 104 slides to different heights, can both obtain the same rotation angular velocity, just can obtain the same linear velocity when the conducting teeth 404 that duplex universal joint both ends are connected's size is the same, and when using like this, need not too complicated proofreading just can realize the quick regulation between two compression roller pieces.
The temperature control equipment comprises a temperature sensor, a temperature adjusting device, a connecting pipeline and a refrigerant, wherein the temperature sensor is arranged on a primary pressing piece, a primary pressing piece processing production line, a secondary pressing piece processing production line, the temperature sensor is electrically connected with the temperature adjusting device, the temperature adjusting device is connected with the connecting pipeline, the refrigerant is arranged in the connecting pipeline, the connecting pipeline is communicated with the inner pipe 302, the temperature of the refrigerant is controlled through the temperature adjusting equipment, and then the ambient temperature of each working procedure is controlled by the refrigerant.
The process has the following action principle: when the sodium ion battery pole piece enters the primary pressing piece, the sodium ion battery pole piece is cold pressed by the primary pressing piece, then enters the primary pressing piece processing line, enters the secondary pressing piece processing line after being dried and cooled, and finally obtains the sodium ion battery pole piece after cold pressing after being dried and cooled, and sends out the sodium ion battery pole piece after cold pressing.
When further description is needed, the primary pressing piece processing line and the secondary pressing piece processing line related to the invention can be supplemented by using the technical scheme which is already disclosed in the field and is mature;
wherein, the temperature control assembly needs to be further described; the temperature control component mainly aims at controlling the temperature requirement of the sodium ion battery pole piece during cold pressing, and when the temperature of the environment is controlled, the compression roller 3 often reduces the yield of products due to the problem of accumulated heat, so in the temperature control component, a connecting pipeline is discharged from an outlet of the products to an inlet of the products, namely, the connecting pipeline sequentially discharges pipes from a secondary pressing piece processing line, a primary pressing piece processing line and a primary pressing piece, and meanwhile, the flow direction of a refrigerant also flows according to the direction; the connecting pipelines at the secondary pressing part processing line and the primary pressing part processing line can be arranged into coiled pipe assemblies, the temperature of the environment is reduced through a fan or passive heat dissipation mode and the like, the cold pressing temperature at the secondary pressing part is ensured to be the optimal cold pressing temperature, and the temperature of secondary cold pressing can be set to be 12-15 ℃ by taking the sodium ion battery production process disclosed in Ningde age as an example; therefore, the temperature during primary cold pressing can be higher than the temperature, and the problems that the temperature difference between the inside and the outside of the sodium ion battery pole piece is overlarge during primary cold pressing, and the internal stress cannot be released to cause the breakage of a coating layer and the like can be reduced.
When the spacing is adjusted, the upper pressing roller piece and the lower pressing roller piece can be accurately adjusted more easily through the application of the screw rod structure of the symmetrical screw rod 102, the pressing surface 305 of the pressing roller 3 can be conveniently replaced and maintained through the separated design of the pressing roller 3, and the upper pressing roller piece and the lower pressing roller piece can be directly locked after the spacing is adjusted through the transmission piece 402, so that the problem of changing the rotating speed of the upper pressing roller 3 and the lower pressing roller 3 due to the change of the distance is not needed to be considered.
It should be further noted that the power source of the driving member 401 in the present invention may also be connected to a driving motor of a conveyor belt or a driving chain for driving the sodium ion battery pole piece to move in the processing apparatus, so as to reduce the number of motors.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (9)
1. The sodium ion battery pole piece treatment equipment comprises secondary cold pressing equipment, wherein the secondary cold pressing equipment comprises a primary pressing piece, a primary pressing piece treatment production line, a secondary pressing piece treatment production line and temperature control equipment, and the primary pressing piece is sequentially connected with the primary pressing piece treatment production line, the secondary pressing piece and the secondary pressing piece treatment production line and is connected with the temperature control equipment; the sodium ion battery pole piece is from beginning to the secondary press part processing production line by once the casting die department after entering equipment and is ended, and wherein once the casting die is the same with the structure of secondary casting die, and once casting die processing production line and secondary press part processing production line all include drying equipment and cooling treatment facility, and cooling equipment sets up in drying equipment's lower station, its characterized in that: the primary pressing piece comprises a fixing frame (1), a mounting seat (2), a pressing roller (3) and a driving assembly (4), wherein one pressing roller (3) and one mounting seat (2) are assembled into one pressing roller piece, and the two pressing roller pieces are arranged on the fixing frame (1) vertically opposite to each other; the driving component (4) comprises a driving piece (401), a plurality of conductive connecting rods (403) and conductive teeth (404), wherein the conductive connecting rods (403) are movably arranged on the fixing frame (1) and are connected with the conductive teeth (404), and the driving piece (401) is matched with the press roller (3) through the conductive connecting rods (403) and the conductive teeth (404);
wherein, the temperature control equipment is connected with the press roller (3).
2. The sodium ion battery pole piece treatment device according to claim 1, wherein the fixing frame (1) comprises fixing plates (101), limiting holes (1013) are formed in the side surfaces of the fixing plates (101), symmetrical screws (102) are connected between the two fixing plates (101), the symmetrical screws (102) are rotatably installed in the limiting holes (1013), rectangular sliding holes (1011) are formed in the side surfaces of the fixing plates (101), sliding grooves (1012) are formed in two opposite inner side surfaces of the sliding holes (1011), sliding seats (104) are connected in the sliding grooves (1012) in a sliding mode, and fixing seats (103) are fixedly installed below the sliding grooves (1012);
the symmetrical screw rod (102) is movably provided with a baffle plate (1021), the baffle plate (1021) is fixed on the inner surface of sodium ion battery pole piece processing equipment, the peripheral side surfaces of the symmetrical screw rod (102) on two sides of the baffle plate (1021) are respectively provided with threads with opposite screw directions, two sides of the baffle plate (1021) are respectively provided with a thread seat (1022), the two thread seats (1022) are in threaded fit with the symmetrical screw rod (102) to form a screw rod structure, and the initial distances between the two thread seats (1022) and the baffle plate (1021) are the same;
the fixing device comprises a fixing seat (103), a fixing limiting groove (1031) and a fixing side plate (1032), wherein the fixing limiting groove is formed in the side surface of the fixing seat (103), the fixing side plate (1032) is fixedly connected to the other side surface of the fixing seat (103), and a plurality of openings are formed in the fixing side plate (1032); a sliding limit groove (1043) is formed in the side surface of the sliding seat (104), a sliding side plate (1042) is fixedly connected to the other side surface of the sliding seat (104), and a plurality of holes are formed in the sliding side plate (1042); the fixed side plate (1032) and the sliding side plate (1042) are provided with corresponding open holes with the same size; the upper surface welding of sliding seat (104) has connecting seat (1041), and connecting seat (1041) is connected with screw thread seat (1022) through connecting rod (1023), and connecting rod (1023) are swivelling joint with connecting seat (1041), screw thread seat (1022).
3. The sodium ion battery pole piece treatment device according to claim 2, wherein two support plates are arranged on one surface of the mounting seat (2), semicircular clamping grooves (201) are formed in one side of each support plate, arc buckles (202) are connected to the clamping grooves (201) through hinges, and the clamping grooves (201) and the arc buckles (202) are matched with each other to form an annular structure; the inner surface of the clamping groove (201) is provided with a groove; limiting plates are arranged on two opposite end faces of the mounting seat (2), and are in plug-in connection with the fixed limiting grooves (1031) or the sliding limiting grooves (1043).
4. A sodium ion battery pole piece treatment device according to claim 3, wherein the press roller (3) comprises a roller (301), an inner tube (302), a seat surface (303), a sleeve (304) and a press surface (305), and the press roller are all of a tube body structure; the inner tube (302) is movably arranged in the roller (301), the outer surface of the roller (301) is fixedly connected with the seat surface (303), and the outer surface of the sleeve (304) is fixedly connected with the pressing surface (305); the outer surface of the seat surface (303) is provided with a plurality of bulges, the inner surface of the sleeve (304) is provided with a plurality of notches, and the bulges are mutually nested and matched with the notches; the sleeve (304) is nested on the outer surface of the seat surface (303); the inner tube (302) is connected with a temperature control device;
the circumference of the roller (301) is also fixedly connected with two baffle seats (3011), the two baffle seats (3011) are respectively arranged at two sides of the seat surface (303), the outer surface of the baffle seat (3011) is connected with a baffle ring (308), and the outer diameter of the baffle ring (308) is larger than the inner diameter of the sleeve (304) and smaller than the outer diameter of the pressing surface (305); the outer surface of the baffle seat (3011) is provided with a plurality of baffle grooves (3012), the peripheral side surface of the baffle ring (308) is provided with a plurality of through pin holes, the positions of the pin holes are opposite to the baffle grooves (3012), the pin holes are internally provided with bolts (3081), and one ends of the bolts (3081) extend into the baffle grooves (3012); a lock hole is formed in one side, far away from the seat surface (303), of the baffle seat (3011), the lock hole penetrates through the baffle groove (3012), a lock pin (3013) is movably connected in the lock hole, a reset groove (3014) is formed in one side, close to the baffle groove (3012), of the inner surface of the lock hole, a reset plate is mounted on Zhou Cemian of the lock pin (3013), the reset plate is located in the reset groove (3014), a reset spring (3015) is further arranged in the reset groove (3014), and the reset spring (3015) is in elastic fit with the reset plate; the lock pin (3013) is matched with the bolt (3081) in a clamping way;
the roller (301) is also provided with two sliding shafts (306) and two driving teeth (307), the two sliding shafts (306) and the two driving teeth (307) are respectively arranged at two ends of the roller (301), and the driving teeth (307), the sliding shafts (306) and the baffle rings (308) are sequentially arranged inwards from two ends of the roller (301);
wherein, the sliding shaft (306) is matched with the clamping groove (201) in a clamping way; the drive teeth (307) are engaged with the conductive teeth (404).
5. A sodium ion battery pole piece treatment device according to claim 4, characterized in that the driving member (401) is an electric motor.
6. A sodium ion battery pole piece treatment device according to claim 5, characterized in that a transmission member (402) is also required for the connection of the driving member (401) and the part of the conductive teeth (404).
7. A sodium ion battery pole piece treatment device according to claim 6, characterized in that the transmission member (402) is a duplex universal joint.
8. The sodium ion battery pole piece treatment device according to claim 7, wherein the temperature control device comprises a temperature sensor, a temperature adjusting device, a connecting pipeline and a refrigerant, the temperature sensor is arranged on a primary pressing piece, a primary pressing piece treatment production line, a secondary pressing piece and a secondary pressing piece treatment production line, the temperature sensor is electrically connected with the temperature adjusting device, the temperature adjusting device is connected with the connecting pipeline, the refrigerant is arranged in the connecting pipeline, and the connecting pipeline is communicated with the inner pipe (302).
9. A sodium ion battery pole piece handling apparatus as claimed in claim 8, wherein the return spring (3015) is a return spring.
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| CN202311329894.4A CN117096282B (en) | 2023-10-16 | 2023-10-16 | Sodium ion battery pole piece treatment facility |
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| CN202311329894.4A CN117096282B (en) | 2023-10-16 | 2023-10-16 | Sodium ion battery pole piece treatment facility |
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