CN118054095A - Edge sealing assembly line for current collector or aluminum plastic film of lithium battery - Google Patents
Edge sealing assembly line for current collector or aluminum plastic film of lithium battery Download PDFInfo
- Publication number
- CN118054095A CN118054095A CN202410456247.8A CN202410456247A CN118054095A CN 118054095 A CN118054095 A CN 118054095A CN 202410456247 A CN202410456247 A CN 202410456247A CN 118054095 A CN118054095 A CN 118054095A
- Authority
- CN
- China
- Prior art keywords
- adhesive tape
- unit
- roller
- edge sealing
- insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 61
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000002985 plastic film Substances 0.000 title claims abstract description 21
- 229920006255 plastic film Polymers 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 143
- 239000002390 adhesive tape Substances 0.000 claims abstract description 117
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000037303 wrinkles Effects 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 56
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000010030 laminating Methods 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 12
- 238000010008 shearing Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003032 molecular docking Methods 0.000 description 6
- 239000000306 component Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The invention relates to the technical field of lithium battery production, in particular to a current collector or aluminum plastic film edge sealing assembly line of a lithium battery, which comprises an unreeling unit, an edge sealing unit, a leveling unit, a curing unit and a reeling unit, wherein the unreeling unit is used for discharging materials, and the materials are the current collector or the aluminum plastic film; the edge sealing unit is used for carrying out edge sealing treatment on two sides of the material by adopting an insulating adhesive tape; the leveling unit is used for leveling the edge-sealed materials so as to eliminate wrinkles of the materials and the insulating adhesive tapes; the curing unit is used for curing the insulating adhesive tape of the flattened material; the winding unit is used for winding the cured material. According to the invention, the edge sealing unit, the leveling unit and the curing unit are matched, so that the two sides of the material are sealed by the insulating adhesive tapes and the insulating adhesive tapes are cured on the two sides of the material, so that the sharper side edges of the material are coated due to slitting, and adjacent parts are not cut when the material is assembled.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to a current collector or aluminum plastic film edge sealing assembly line of a lithium battery.
Background
The current collector and the aluminum plastic film of the lithium battery are one of core components of the lithium battery, and are usually stored in a winding mode, when the lithium battery needs to be used, the lithium battery is cut into proper specifications after being discharged through an unreeling mechanism, and then the lithium battery is reeled and transferred to a corresponding device for use.
The material is cut before use, so that the cuts on two sides (or at least one side) of the material are very sharp, and adjacent parts are easily cut during assembly, thereby influencing the yield and quality of the assembled lithium battery.
Disclosure of Invention
The invention provides a current collector or aluminum plastic film edge sealing assembly line of a lithium battery aiming at the problems in the prior art, and the protection effect is achieved by edge sealing of materials of the lithium battery.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention provides a current collector or aluminum plastic film edge sealing assembly line of a lithium battery, which comprises an unreeling unit, an edge sealing unit, a leveling unit, a curing unit and a reeling unit,
The unreeling unit is used for discharging materials, and the materials are current collectors or aluminum plastic films;
The edge sealing unit is used for carrying out edge sealing treatment on two sides of the material by adopting an insulating adhesive tape;
The leveling unit is used for leveling the edge-sealed materials so as to eliminate wrinkles of the materials and the insulating adhesive tapes;
The curing unit is used for curing the insulating adhesive tape of the flattened material;
the winding unit is used for winding the cured material.
Further, the edge sealing unit comprises an edge sealing frame, an upper roller, a lower roller, a driving module, a pressing and pasting module and two guiding modules, wherein the upper roller and the lower roller are both rotatably arranged on the edge sealing frame, a channel for allowing materials and insulating tapes to pass through is formed between the upper roller and the lower roller, the driving module is used for driving the upper roller and the lower roller to rotate, the edge sealing frame is positioned between the two guiding modules, and the guiding modules are used for conveying the insulating tapes and pasting the insulating tapes on the side edges of the materials;
the two sides of the upper roller and the two sides of the lower roller are respectively provided with a profiling part, the profiling parts are round tables, and the radius of the profiling parts gradually increases from one end connected with the upper roller or the lower roller to the other end; the profiling part is used for abutting the insulating adhesive tape and forcing the insulating adhesive tape to bend;
the pressing and pasting module is used for forcing the bent insulating adhesive tape to be bent to the pasting material.
Further, the pressing and pasting module comprises two pressing and pasting rollers and two limiting pressing grooves, wherein the two pressing and pasting rollers are respectively positioned at two sides of the edge sealing frame, and the two limiting pressing grooves are respectively positioned at two sides of the edge sealing frame;
The working mode of the edge sealing unit specifically comprises the following steps:
the two guide modules respectively transfer the insulating adhesive tapes to two sides of the bonding material;
Flattening the material by matching the upper roller with the lower roller, and bending the insulating adhesive tape through the profiling part, wherein the bending angle of the insulating adhesive tape is 30-50 degrees;
the material passes between two pressing and pasting rollers, and the insulating adhesive tape is pressed to the upper surface and the lower surface of the material by the pressing and pasting rollers;
two sides of the material pass through two side limiting pressing grooves respectively, and the insulating adhesive tape is secondarily pressed through the limiting pressing grooves.
Further, the guiding module comprises a tape feeding mechanism, a tape temporary storage mechanism, a tape separating mechanism and a tape laminating roller,
The adhesive tape feeding mechanism is used for unreeling the adhesive tape;
The adhesive tape temporary storage mechanism is used for storing adhesive tapes and releasing the stored adhesive tapes when the adhesive tape feeding mechanism changes the rolls of the adhesive tapes;
the adhesive tape separating mechanism is used for separating the adhesive tape from the release paper;
the adhesive tape laminating roller is used for laminating the adhesive tape after separating release paper to the side of the material.
Further, the adhesive tape feeding mechanism comprises a turntable assembly, a feeding monitoring device, a material shearing assembly, a connection table, a material pressing assembly and a material pulling assembly, wherein the turntable assembly is provided with at least two unreeling stations;
The mode of unwinding the adhesive tape by the adhesive tape feeding mechanism specifically comprises the following steps:
A. unreeling the adhesive tape through one unreeling station, so that the adhesive tape passes through the connection platform and then is transmitted to the adhesive tape separating mechanism, and assembling new adhesive tape material rolls at other unreeling stations; in the unreeling process, storing the adhesive tape with preset length through an adhesive tape temporary storage mechanism;
B. the thickness of the adhesive tape material roll in unreeling is obtained through a feeding monitoring device, when the thickness is smaller than a preset value, the material shearing assembly is controlled to shear the adhesive tape, and then the turntable assembly rotates to switch the unreeling station of the unreeling adhesive tape;
C. after the time t, the adhesive tape is pressed by the pressing component; wherein t is a constant greater than 0;
D. after the turntable assembly finishes switching the unreeling station, detecting the head end position of a new adhesive tape roll by a feeding monitoring device, and then controlling a material pulling assembly to transfer the head end of the adhesive tape roll to a connection platform;
E. The pressed adhesive tape is connected with the head end of the new adhesive tape roll through the connection platform.
Further, the pressing and pasting module further comprises two limit baffles, and a transmission channel is formed between the two limit baffles; the two sides of the material are adhered with insulating tapes and then are transferred into the transmission channel, and the adhesion between the material and the insulating tapes is maintained through the limiting baffle.
Further, the leveling unit includes thickness monitor, goes up conflict roller, down conflict roller, leveling drive module, the lever of stepping down and lever drive module, and the leveling drive module is used for driving conflict roller and conflict roller rotation down, goes up the clearance that forms between conflict roller and the lower conflict roller and is used for letting material and insulating tape pass, and thickness monitor is located between banding unit and the last conflict roller, goes up the conflict roller and installs in the one end of stepping down the lever, and lever drive module is used for driving the other end of stepping down the lever and goes up and down in order to drive the lift of last conflict roller.
Further, the lever driving module comprises a permanent magnet, an electromagnet and a current controller, the abdication lever is provided with a driving end and a driven end, the length ratio of the driving end to the driven end is less than 10:1, the permanent magnet is arranged at the driving end, and the upper abutting roller is arranged at the driven end; the working mode of the leveling unit comprises the following steps:
S1, an electromagnet is electrified to generate magnetism, and a permanent magnet is adsorbed to enable an upper abutting roller to abut against materials and an insulating adhesive tape;
S2, monitoring the state of insulating tapes on two sides of the material to be in the gap through a thickness monitor, and executing a step S3 when the state is connection; when the state is thickness spread, executing step S4;
s3, the current controller controls and switches the current direction to drive the upper abutting roller to tilt, so that the yielding of the abutting joint position is realized;
s4, the current controller increases output current to ensure that the upper abutting roller has enough lower pressure flattening staggered positions.
Further, the leveling driving module comprises a driving motor, a belt transmission mechanism, a tensioning piece and a transmission piece, wherein the driving motor is in driving connection with the upper abutting roller and the lower abutting roller through the belt transmission mechanism, and the tensioning piece is used for abutting the belt transmission mechanism to keep the tensioning force of the belt transmission mechanism; the transmission piece is arranged on the upper abutting roller and rises and falls along with the upper abutting roller, the transmission piece is provided with a first inclined plane, and the tensioning piece is provided with a second inclined plane matched with the first inclined plane; the tensioning member is also connected with an elastic mechanism for forcing the tensioning member to move in a direction away from the belt drive mechanism.
Further, a deviation rectifying unit is arranged between the unreeling unit and the edge sealing unit and between the reeling unit and the curing unit respectively, the deviation rectifying unit is provided with a visual module, and the deviation rectifying unit judges whether the material belt deviates according to an image shot by the visual module and carries out deviation rectifying treatment on the material belt when the material belt deviates.
The invention has the beneficial effects that: according to the invention, the edge sealing unit, the leveling unit and the curing unit are matched, so that the two sides of the material are sealed by the insulating adhesive tapes and the insulating adhesive tapes are cured on the two sides of the material, so that the sharper side edges of the material are coated due to slitting, and adjacent parts are not cut when the material is assembled.
Drawings
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is a schematic view of an edge banding unit of the present invention.
Fig. 3 is a schematic view of a tape feeding mechanism according to the present invention.
Fig. 4 is a schematic view of direction a in fig. 3.
Fig. 5 is a schematic view of a leveling unit of the present invention.
Reference numerals: 1-unreeling unit, 2-edge sealing unit, 3-leveling unit, 4-curing unit, 5-reeling unit, 6-deviation correcting unit, 7-vision module, 21-edge sealing frame, 22-upper roller, 24-driving module, 25-pressing and pasting module, 26-guiding module, 31-thickness monitor, 32-upper conflict roller, 33-lower conflict roller, 34-leveling driving module, 35-stepping lever, 36-lever driving module, 221-profiling part, 251-pressing and pasting roller, 252-limiting pressing groove, 253-limiting baffle plate, 261-adhesive tape feeding mechanism, 262-adhesive tape temporary storage mechanism, 263-adhesive tape separating mechanism, 264-adhesive tape pasting roller, 341-driving motor, 342-belt transmission mechanism, 343-tensioning piece, 344-transmission piece, 345-first inclined plane, 346-second inclined plane, 347-elastic mechanism, 361-permanent magnet, 362-electromagnet, 363-current controller, 2611-turntable assembly, 2612-feeding monitoring device, 3-261material cutting assembly, 4-docking station, 5-261, 6-pressing and 2617-reeling station.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the edge sealing assembly line for the current collector or the aluminum plastic film of the lithium battery provided by the invention comprises an unreeling unit 1, an edge sealing unit 2, a leveling unit 3, a curing unit 4 and a reeling unit 5,
The unreeling unit 1 is used for discharging materials, wherein the materials are current collectors or aluminum plastic films;
The edge sealing unit 2 is used for carrying out edge sealing treatment on two sides of the material by adopting an insulating adhesive tape;
the leveling unit 3 is used for leveling the edge-sealed materials so as to eliminate wrinkles of the materials and the insulating adhesive tape;
The curing unit 4 is used for curing the insulating adhesive tape of the flattened material;
the winding unit 5 is used for winding the cured material.
The material which is cut and rolled up is transferred to the invention, and edge sealing treatment is carried out on the material by the invention, so that insulating tapes are respectively coated on two sides of the material and cured, the material can be realized only through the insulating tapes when the material is contacted with adjacent parts, other parts are not cut due to sharp sides, and the yield of the battery is ensured.
In this embodiment, the edge sealing unit 2 includes an edge sealing frame 21, an upper roller 22, a lower roller (not shown), a driving module 24, a pressing module 25, and two guiding modules 26, wherein the upper roller 22 and the lower roller are both rotatably disposed on the edge sealing frame 21, a channel for passing materials and insulating tapes is disposed between the upper roller 22 and the lower roller, the driving module 24 is used for driving the upper roller 22 and the lower roller to rotate, the edge sealing frame 21 is disposed between the two guiding modules 26, and the guiding module 26 is used for conveying the insulating tapes and adhering the insulating tapes to the sides of the materials;
Profiling parts 221 are respectively arranged on two sides of the upper roller 22 and two sides of the lower roller, the profiling parts 221 are round tables, and the radius of the profiling parts 221 gradually increases from one end connected with the upper roller 22 or the lower roller to the other end; the profiling part 221 is used for abutting the insulating tape and forcing the insulating tape to bend;
The pressing and attaching module 25 is used for forcing the bent insulating tape to be bent to attach materials.
Specifically, the pressing and attaching module 25 includes two pressing and attaching rollers 251 and two limiting pressing grooves 252, the two pressing and attaching rollers 251 are respectively located at two sides of the edge sealing frame 21, and the two limiting pressing grooves 252 are respectively located at two sides of the edge sealing frame 21;
The operation mode of the edge sealing unit 2 specifically includes:
the two guide modules 26 respectively convey the insulating adhesive tapes to two sides of the bonding material;
The upper roller 22 and the lower roller are matched to carry out flattening treatment on the materials, and the insulating adhesive tape is bent through the profiling part 221, wherein the bending angle of the insulating adhesive tape is 30-50 degrees;
The material passes between two pressing rollers 251, and the insulating tape is pressed to the upper surface and the lower surface of the material by the pressing rollers 251;
The two sides of the material respectively pass through the two side limiting pressing grooves 252, and the insulating adhesive tape is secondarily pressed through the limiting pressing grooves 252.
According to the invention, the unreeling unit 1 and the reeling unit 5 are matched to realize the material transmission, before the material enters the upper roller 22 and the lower roller, the insulating adhesive tapes are guided to be attached to two sides of the material by the guide module 26, and then the material enters between the upper roller 22 and the lower roller for one-time compression. In order to ensure the adhesion of the insulating tape, the upper roller 22 and the lower roller mainly bend the insulating tape at an angle, for example, bend the insulating tape towards the material for 45 degrees, then press the insulating tape to be tightly attached to the material by the pressing and attaching module 25, thereby ensuring the bending direction of the insulating tape and reducing the wrinkles on the surface of the insulating tape as much as possible.
Besides the two pressing rollers 251 are adopted to press the bent insulating tape to the bonding material, the pressing module 25 also realizes the tight bonding of the insulating tape through the limiting pressing grooves 252, namely, two sides of the material pressed by the pressing rollers 251 pass through the limiting pressing grooves 252, and the two sides of the insulating tape are pressed against the side edges and the upper surface and the lower surface of the insulating tape through the limiting pressing grooves 252 so as to realize the secondary compaction of the insulating tape.
Specifically, the guiding module 26 includes a tape feeding mechanism 261, a tape temporary storage mechanism 262, a tape separating mechanism 263 and a tape laminating roller 264,
The adhesive tape feeding mechanism 261 is used for unreeling adhesive tapes;
The tape temporary storage mechanism 262 is used for storing the tape and releasing the stored tape when the tape feeding mechanism 261 changes the tape;
the tape separating mechanism 263 is used for separating the tape from the release paper;
The tape laminating roller 264 is used for laminating the tape after separating the release paper to the side of the material.
The feeding mode of the insulating tape is unreeling, and in order to realize unreeling without stopping, the invention specially provides the tape temporary storage mechanism 262, the tape temporary storage mechanism 262 belongs to a conventional structure, is used for paying out the insulating tape with a certain length stored in advance to compensate the reel-replacing time during reel-replacing, and stores the insulating tape with a certain length again in a mode of improving the unreeling rate of the unreeling station 2617 after reel-replacing, thereby ensuring the edge sealing efficiency of the invention on materials.
The tape separating mechanism 263 of the present invention includes at least one separating roller for guiding the release paper to separate from the insulating tape, thereby ensuring that the insulating tape is reliably attached to the material.
Specifically, the adhesive tape feeding mechanism 261 includes a turntable assembly 2611, a feeding monitoring device 2612, a shearing assembly 2613, a docking station 2614, a pressing assembly 2615 and a pulling assembly 2616, wherein the turntable assembly 2611 is provided with at least two unreeling stations 2617;
The mode of unwinding the adhesive tape by the adhesive tape feeding mechanism specifically comprises the following steps:
A. the tape is unwound by one unwinding station 2617, so that the tape is transferred to the tape separating mechanism 263 after passing through the docking station 2614, and a new roll of tape is assembled at the other unwinding stations 2617; during unreeling, the tape of a preset length is stored by the tape temporary storage mechanism 262;
B. The thickness of the adhesive tape roll in unreeling is obtained through the feeding monitoring device 2612, when the thickness is smaller than a preset value, the material shearing assembly 2613 is controlled to shear the adhesive tape, and then the rotary table assembly 2611 is rotated to switch the unreeling station 2617 of the unreeled adhesive tape;
C. after the time t, the pressing component 2615 presses the adhesive tape; wherein t is a constant greater than 0;
D. When the turntable assembly 2611 finishes switching the unreeling station 2617, detecting the head end position of a new adhesive tape material roll through the feeding monitoring device 2612, and then controlling the material pulling assembly 2616 to transfer the head end of the adhesive tape material roll to the docking station 2614;
E. the tape held by the press and the head end of the new tape roll are connected by the connection table 2614.
The feeding monitoring device 2612 monitors the unreeling station 2617 for discharging the insulating tape currently through images, namely when the thickness of the insulating tape material roll displayed in the images is too small, the insulating tape needs to be replaced, at the moment, the material shearing assembly 2613 shears the insulating tape, the insulating tape at the sheared position is still transmitted, and the transmission rate of the insulating tape is basically constant, so that the sheared position is necessarily moved to the docking station 2614 after the lapse of t time, and at the moment, the material pressing assembly 2615 can press the insulating tape to wait for docking.
Before the roll is placed into the unwind station 2617, the leading end of the insulating tape on the roll may be unwound manually or by a manipulator. After the above manner is completed, after the reel changing station is switched, the vision device can scale the head end position of the material reel according to the image, then the material pulling component 2616 is controlled to grasp the head end and transfer to the connection platform 2614, and the connection platform 2614 is used for connecting one end of the insulating tape far away from the release paper, so that the insulating tape at two ends is prevented from being separated when the release paper is separated.
The connection platform 2614 can realize connection of the insulating adhesive tapes at two ends in a single-sided adhesive tape pasting, laser melting and bonding mode and the like; the material pulling component 2616 preferably adopts a mode of matching a vacuum chuck with a flexible robot to realize material grabbing, and can flexibly move and grab according to the head end position of the material roll monitored by the material feeding monitoring device 2612.
In this embodiment, the pressing module 25 further includes two limiting plates 253, and a transmission channel is formed between the two limiting plates 253; the two sides of the material are adhered with insulating tapes and then are transferred into the transmission channel, and the adhesion between the material and the insulating tapes is maintained through the limiting baffle 253.
Because the thickness of both sides of material is very little, consequently after laminating the insulating tape, the restriction through limit baffle 253 is in order to force material and insulating tape to keep laminating state to carry out the transmission earlier, and after the insulating tape was buckled, its laminating degree between the material was promoted, and it is spacing and transfer by limit baffle 253 to continue this moment, just need not the insulating tape to carry out spacingly when insulating material is compressed tightly to laminating the material to the insulating tape can not drop has been guaranteed.
Of course, the pressing and pasting module 25 may also include two sets of rollers, and the rollers are in contact with the transmission mode to ensure that the insulating tape is transported along with the material.
In this embodiment, the leveling unit 3 includes a thickness monitor 31, an upper abutting roller 32, a lower abutting roller 33, a leveling driving module 34, a yielding lever 35 and a lever driving module 36, the leveling driving module 34 is used for driving the upper abutting roller 32 and the lower abutting roller 33 to rotate, a gap for allowing materials and insulating tapes to pass through is formed between the upper abutting roller 32 and the lower abutting roller 33, the thickness monitor 31 is located between the edge sealing unit 2 and the upper abutting roller 32, the upper abutting roller 32 is mounted at one end of the yielding lever 35, and the lever driving module 36 is used for driving the other end of the yielding lever 35 to lift so as to drive the upper abutting roller 32 to lift.
In the invention, after the materials are tightly attached to the insulating adhesive tape, the materials or the insulating adhesive tape may have wrinkles, so that the materials or the insulating adhesive tape may need to be leveled by adopting a leveling unit 3. The leveling unit 3 of the present invention detects the thickness of the material through the thickness monitor 31, and if the material or the insulating tape is in the connection position, the lever driving module 36 drives the upper abutting roller 32 to ascend to yield, so as to avoid the separation of the connection position.
In this embodiment, the lever driving module 36 includes a permanent magnet 361, an electromagnet 362, and a current controller 363, the yielding lever 35 has a driving end and a driven end, the ratio of the length of the driving end to the length of the driven end is less than 10:1, the permanent magnet 361 is mounted on the driving end, and the upper abutting roller 32 is mounted on the driven end;
Specifically, the working modes of the leveling unit 3 include:
S1, an electromagnet 362 is electrified to generate magnetism, and a permanent magnet 361 is adsorbed to enable an upper abutting roller 32 to abut against materials and an insulating adhesive tape;
s2, monitoring the state of insulating tapes on two sides of the material to be in the gap through a thickness monitor 31, and executing a step S3 when the state is connection; when the state is thickness spread, executing step S4;
S3, the current controller 363 controls the current direction to drive the upper abutting roller 32 to tilt so as to achieve the abdication of the abutting joint position;
And S4, the current controller 363 increases the output current to ensure that the upper abutting roller 32 has enough lower pressing force flattening spread positions.
Because the driving end of the abdication lever 35 is much longer than the driven end, the driving end can tilt the upper abutting roller 32 only by applying small force; meanwhile, the thickness change of the connection position is very small, so that the stroke of the driving end is not required to be large, and the yielding of the upper abutting roller 32 to the connection position can be controlled in an electromagnetic mode.
While a greater thickness is not caused by one of two conditions: one is to attach adhesive tape during connection, and the other is to cause different thicknesses at different positions due to production process defects.
For the former method, the upper abutting roller 32 is required to give way, while for the latter method, the upper abutting roller 32 is required to increase the holding force to ensure that the material and the insulating tape are pressed to the required thickness, so as to ensure that the thickness of the material is within the tolerance range.
The thickness monitor 31 of the present invention is preferably a high-precision CCD camera, and the problem of the above-mentioned thickness can be determined by color layering of materials, insulating tapes and connection tapes in the photographed image, so that the process is performed according to the state.
In this embodiment, the leveling driving module 34 includes a driving motor 341, a belt driving mechanism 342, a tensioning member 343, and a driving member 344, wherein the driving motor 341 is connected to the upper abutting roller 32 and the lower abutting roller 33 through the belt driving mechanism 342 in a driving manner, and the tensioning member 343 is used for abutting against the belt driving mechanism 342 to maintain the tensioning force of the belt driving mechanism 342; the transmission member 344 is disposed on the upper abutting roller 32 and rises and falls along with the upper abutting roller 32, the transmission member 344 is provided with a first inclined surface 345, and the tensioning member 343 is provided with a second inclined surface 346 for matching with the first inclined surface 345; the tensioner 343 is further connected with a resilient mechanism 347, the resilient mechanism 347 being adapted to urge the tensioner 343 to move away from the belt drive 342.
That is, in a normal state, the first inclined surface 345 collides with the second inclined surface 346, and the transmission member 344 forces the tension member 343 to collide with the belt transmission mechanism 342 so as to maintain the tension of the belt transmission mechanism 342; when the upper abutting roller 32 is required to be retracted, the upper abutting roller 32 is lifted to drive the transmission member 344 to be lifted, and at this time, the relative positions of the first inclined plane 345 and the second inclined plane 346 are changed, and the elastic mechanism 347 drives the tensioning member 343 to retract through elastic force, so as to avoid excessive compression on the belt transmission mechanism 342.
Through the above manner, the upper abutting roller 32 and the lower abutting roller 33 can be controlled to rotate by one driving motor 341, and the consistency of the rotating speeds of the upper abutting roller and the lower abutting roller is ensured; and the transmission effect can be still maintained when the yielding is required.
In this embodiment, a deviation rectifying unit 6 is respectively disposed between the unreeling unit 1 and the edge sealing unit 2, and between the reeling unit 5 and the curing unit 4, the deviation rectifying unit 6 has a vision module 7, and the deviation rectifying unit 6 judges whether the material belt deviates according to the image shot by the vision module 7, and performs deviation rectifying treatment on the material belt when the material belt deviates, so as to ensure that the transmission path of the material is stable and accurate, and thus the reliability and consistency of the edge sealing are ensured.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. A current collector or plastic-aluminum membrane banding assembly line of lithium cell, its characterized in that: comprises an unreeling unit, a banding unit, a leveling unit, a curing unit and a reeling unit,
The unreeling unit is used for discharging materials, and the materials are current collectors or aluminum plastic films;
The edge sealing unit is used for carrying out edge sealing treatment on two sides of the material by adopting an insulating adhesive tape;
The leveling unit is used for leveling the edge-sealed materials so as to eliminate wrinkles of the materials and the insulating adhesive tapes;
The curing unit is used for curing the insulating adhesive tape of the flattened material;
the winding unit is used for winding the cured material.
2. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 1, wherein: the edge sealing unit comprises an edge sealing frame, an upper roller, a lower roller, a driving module, a pressing and pasting module and two guiding modules, wherein the upper roller and the lower roller are both rotatably arranged on the edge sealing frame, a channel for allowing materials and insulating tapes to pass through is formed between the upper roller and the lower roller, the driving module is used for driving the upper roller and the lower roller to rotate, the edge sealing frame is positioned between the two guiding modules, and the guiding modules are used for conveying the insulating tapes and pasting the insulating tapes on the side edges of the materials;
the two sides of the upper roller and the two sides of the lower roller are respectively provided with a profiling part, the profiling parts are round tables, and the radius of the profiling parts gradually increases from one end connected with the upper roller or the lower roller to the other end; the profiling part is used for abutting the insulating adhesive tape and forcing the insulating adhesive tape to bend;
the pressing and pasting module is used for forcing the bent insulating adhesive tape to be bent to the pasting material.
3. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 2, wherein: the pressing and pasting module comprises two pressing and pasting rollers and two limiting pressing grooves, the two pressing and pasting rollers are respectively positioned on two sides of the edge sealing frame, and the two limiting pressing grooves are respectively positioned on two sides of the edge sealing frame;
The working mode of the edge sealing unit specifically comprises the following steps:
the two guide modules respectively transfer the insulating adhesive tapes to two sides of the bonding material;
Flattening the material by matching the upper roller with the lower roller, and bending the insulating adhesive tape through the profiling part, wherein the bending angle of the insulating adhesive tape is 30-50 degrees;
the material passes between two pressing and pasting rollers, and the insulating adhesive tape is pressed to the upper surface and the lower surface of the material by the pressing and pasting rollers;
two sides of the material pass through two side limiting pressing grooves respectively, and the insulating adhesive tape is secondarily pressed through the limiting pressing grooves.
4. A lithium battery current collector or aluminum plastic film edge sealing line according to claim 3, wherein: the guiding module comprises a rubber belt feeding mechanism, a rubber belt temporary storage mechanism, a rubber belt separating mechanism and a rubber belt attaching roller,
The adhesive tape feeding mechanism is used for unreeling the adhesive tape;
The adhesive tape temporary storage mechanism is used for storing adhesive tapes and releasing the stored adhesive tapes when the adhesive tape feeding mechanism changes the rolls of the adhesive tapes;
the adhesive tape separating mechanism is used for separating the adhesive tape from the release paper;
the adhesive tape laminating roller is used for laminating the adhesive tape after separating release paper to the side of the material.
5. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 4, wherein: the adhesive tape feeding mechanism comprises a turntable assembly, a feeding monitoring device, a shearing assembly, a connection table, a pressing assembly and a pulling assembly, wherein the turntable assembly is provided with at least two unreeling stations;
The mode of unwinding the adhesive tape by the adhesive tape feeding mechanism specifically comprises the following steps:
A. unreeling the adhesive tape through one unreeling station, so that the adhesive tape passes through the connection platform and then is transmitted to the adhesive tape separating mechanism, and assembling new adhesive tape material rolls at other unreeling stations; in the unreeling process, storing the adhesive tape with preset length through an adhesive tape temporary storage mechanism;
B. the thickness of the adhesive tape material roll in unreeling is obtained through a feeding monitoring device, when the thickness is smaller than a preset value, the material shearing assembly is controlled to shear the adhesive tape, and then the turntable assembly rotates to switch the unreeling station of the unreeling adhesive tape;
C. after the time t, the adhesive tape is pressed by the pressing component; wherein t is a constant greater than 0;
D. after the turntable assembly finishes switching the unreeling station, detecting the head end position of a new adhesive tape roll by a feeding monitoring device, and then controlling a material pulling assembly to transfer the head end of the adhesive tape roll to a connection platform;
E. The pressed adhesive tape is connected with the head end of the new adhesive tape roll through the connection platform.
6. A lithium battery current collector or aluminum plastic film edge sealing line according to claim 3, wherein: the pressing and pasting module further comprises two limit baffles, and a transmission channel is formed between the two limit baffles; the two sides of the material are adhered with insulating tapes and then are transferred into the transmission channel, and the adhesion between the material and the insulating tapes is maintained through the limiting baffle.
7. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 1, wherein: the leveling unit comprises a thickness monitor, an upper abutting roller, a lower abutting roller, a leveling driving module, a yielding lever and a lever driving module, wherein the leveling driving module is used for driving the upper abutting roller to rotate with the lower abutting roller, a gap for allowing materials and insulating tapes to pass through is formed between the upper abutting roller and the lower abutting roller, the thickness monitor is located between the edge sealing unit and the upper abutting roller, the upper abutting roller is arranged at one end of the yielding lever, and the lever driving module is used for driving the other end of the yielding lever to lift so as to drive the upper abutting roller to lift.
8. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 7, wherein: the lever driving module comprises a permanent magnet, an electromagnet and a current controller, the abdication lever is provided with a driving end and a driven end, the length ratio of the driving end to the driven end is less than 10:1, the permanent magnet is arranged at the driving end, and the upper abutting roller is arranged at the driven end; the working mode of the leveling unit comprises the following steps:
S1, an electromagnet is electrified to generate magnetism, and a permanent magnet is adsorbed to enable an upper abutting roller to abut against materials and an insulating adhesive tape;
S2, monitoring the state of insulating tapes on two sides of the material to be in the gap through a thickness monitor, and executing a step S3 when the state is connection; when the state is thickness spread, executing step S4;
s3, the current controller controls and switches the current direction to drive the upper abutting roller to tilt, so that the yielding of the abutting joint position is realized;
s4, the current controller increases output current to ensure that the upper abutting roller has enough lower pressure flattening staggered positions.
9. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 7, wherein: the leveling driving module comprises a driving motor, a belt transmission mechanism, a tensioning piece and a transmission piece, wherein the driving motor is in driving connection with the upper abutting roller and the lower abutting roller through the belt transmission mechanism, and the tensioning piece is used for abutting the belt transmission mechanism to keep the tensioning force of the belt transmission mechanism; the transmission piece is arranged on the upper abutting roller and rises and falls along with the upper abutting roller, the transmission piece is provided with a first inclined plane, and the tensioning piece is provided with a second inclined plane matched with the first inclined plane; the tensioning member is also connected with an elastic mechanism for forcing the tensioning member to move in a direction away from the belt drive mechanism.
10. The lithium battery current collector or aluminum plastic film edge sealing assembly line according to claim 1, wherein: and a deviation rectifying unit is respectively arranged between the unreeling unit and the edge sealing unit and between the reeling unit and the curing unit, the deviation rectifying unit is provided with a visual module, and the deviation rectifying unit judges whether the material belt deviates according to the image shot by the visual module and carries out deviation rectifying treatment on the material belt when the material belt deviates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456247.8A CN118054095A (en) | 2024-04-16 | 2024-04-16 | Edge sealing assembly line for current collector or aluminum plastic film of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456247.8A CN118054095A (en) | 2024-04-16 | 2024-04-16 | Edge sealing assembly line for current collector or aluminum plastic film of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118054095A true CN118054095A (en) | 2024-05-17 |
Family
ID=91046998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410456247.8A Pending CN118054095A (en) | 2024-04-16 | 2024-04-16 | Edge sealing assembly line for current collector or aluminum plastic film of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118054095A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1342278A2 (en) * | 2000-12-05 | 2003-09-10 | Danionics A/S | Electrochemical cells and their packaging |
| JP2005116213A (en) * | 2003-10-03 | 2005-04-28 | Sony Corp | Tape pasting device and method |
| CN109378527A (en) * | 2018-11-30 | 2019-02-22 | 珠海市嘉德电能科技有限公司 | A kind of battery core adhesive tape rubberizing mechanism |
| CN111362043A (en) * | 2020-03-13 | 2020-07-03 | 营口金辰机械股份有限公司 | Automatic adhesive tape positioning type edge sealing device for solar cell dual-glass assembly and edge sealing process thereof |
| KR20200086855A (en) * | 2019-01-10 | 2020-07-20 | 주식회사 에이팩코리아 | Edge Bending Machine Having Sub Driving Means For Facial Cutting Apparatus |
| CN113644358A (en) * | 2021-06-21 | 2021-11-12 | 广东嘉尚新能源科技有限公司 | Soft packet of lithium cell processing is with adhesive tape banding device that can continuous self calibration |
| CN114871051A (en) * | 2021-07-02 | 2022-08-09 | 广东嘉尚新能源科技有限公司 | Side molding equipment of soft packet of lithium cell of adaptable different shapes |
| WO2023274277A1 (en) * | 2021-06-30 | 2023-01-05 | 博锲思智能装备(青岛)有限公司 | Automatic side edge sealer for sheet material |
| CN218849567U (en) * | 2022-11-23 | 2023-04-11 | 广东鸿宝科技有限公司 | Automatic device of borduring of battery electricity core |
| CN117303051A (en) * | 2023-11-10 | 2023-12-29 | 珠海市崧源电子企业有限公司 | Shielding layer feeding device and transformer shielding copper foil encapsulation equipment |
-
2024
- 2024-04-16 CN CN202410456247.8A patent/CN118054095A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1342278A2 (en) * | 2000-12-05 | 2003-09-10 | Danionics A/S | Electrochemical cells and their packaging |
| JP2005116213A (en) * | 2003-10-03 | 2005-04-28 | Sony Corp | Tape pasting device and method |
| CN109378527A (en) * | 2018-11-30 | 2019-02-22 | 珠海市嘉德电能科技有限公司 | A kind of battery core adhesive tape rubberizing mechanism |
| KR20200086855A (en) * | 2019-01-10 | 2020-07-20 | 주식회사 에이팩코리아 | Edge Bending Machine Having Sub Driving Means For Facial Cutting Apparatus |
| CN111362043A (en) * | 2020-03-13 | 2020-07-03 | 营口金辰机械股份有限公司 | Automatic adhesive tape positioning type edge sealing device for solar cell dual-glass assembly and edge sealing process thereof |
| CN113644358A (en) * | 2021-06-21 | 2021-11-12 | 广东嘉尚新能源科技有限公司 | Soft packet of lithium cell processing is with adhesive tape banding device that can continuous self calibration |
| WO2023274277A1 (en) * | 2021-06-30 | 2023-01-05 | 博锲思智能装备(青岛)有限公司 | Automatic side edge sealer for sheet material |
| CN114871051A (en) * | 2021-07-02 | 2022-08-09 | 广东嘉尚新能源科技有限公司 | Side molding equipment of soft packet of lithium cell of adaptable different shapes |
| CN218849567U (en) * | 2022-11-23 | 2023-04-11 | 广东鸿宝科技有限公司 | Automatic device of borduring of battery electricity core |
| CN117303051A (en) * | 2023-11-10 | 2023-12-29 | 珠海市崧源电子企业有限公司 | Shielding layer feeding device and transformer shielding copper foil encapsulation equipment |
Non-Patent Citations (1)
| Title |
|---|
| 罗欣怡;: "一种软包装锂离子电池的封装技术", 仪器仪表用户, no. 08, 11 July 2018 (2018-07-11) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211687565U (en) | Automatic material changing and tape splicing device and lithium battery winding equipment | |
| CN108701869B (en) | Automatic tape changing device for winding battery cell and battery cell winding equipment | |
| WO2019222886A1 (en) | Plate manufacturing and rolling integrated machine | |
| CN111129556B (en) | Piece is rolled up laminating equipment and is used for membrane electrode's preparation system | |
| CN113233231B (en) | Reel changing device and adhesive tape pasting equipment | |
| CN108598547B (en) | Battery making machine | |
| CN114314109A (en) | Roll changing equipment | |
| CN112811225A (en) | Roll changing device and adhesive tape sticking equipment | |
| CN111029630B (en) | Preparation system for membrane electrode | |
| CN111924606B (en) | Tape splicing device and lamination equipment | |
| CN112635846A (en) | Cross cutting lamination all-in-one | |
| CN113401703A (en) | Automatic unreeling splicing tape deviation correcting device | |
| CN111180771A (en) | Coil stock laminating equipment and preparation system for membrane electrode | |
| CN114314111A (en) | Transfer device and reel changing equipment | |
| CN117602435A (en) | Multi-station device for label stripping and cutting | |
| CN117485957A (en) | Die cutting and discharging device for power battery protection sheet | |
| CN118054095A (en) | Edge sealing assembly line for current collector or aluminum plastic film of lithium battery | |
| CN209853423U (en) | Unwinding device and unwinding equipment | |
| CN117317395A (en) | Continuous winding equipment for negative electrode and winding method for lithium battery | |
| CN216996910U (en) | Tape splicing device and reel changing equipment | |
| CN110040548B (en) | Rewinding machine | |
| CN217417583U (en) | Transfer device and reel changing equipment | |
| CN215159586U (en) | Roll changing device and adhesive tape sticking equipment | |
| CN111689276A (en) | Unwinding device and unwinding equipment | |
| CN211605333U (en) | Tape splicing device and preparation equipment for lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |