CN210279700U - Coating die head for single-group or multi-group lithium battery pole piece - Google Patents
Coating die head for single-group or multi-group lithium battery pole piece Download PDFInfo
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- CN210279700U CN210279700U CN201921121964.6U CN201921121964U CN210279700U CN 210279700 U CN210279700 U CN 210279700U CN 201921121964 U CN201921121964 U CN 201921121964U CN 210279700 U CN210279700 U CN 210279700U
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- 238000000576 coating method Methods 0.000 title claims abstract description 79
- 239000011248 coating agent Substances 0.000 title claims abstract description 78
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000006255 coating slurry Substances 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 26
- 230000007704 transition Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000007765 extrusion coating Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000007581 slurry coating method Methods 0.000 description 2
- 241000283070 Equus zebra Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses a coating die head for single group or multiunit lithium battery pole piece, including upper die head and lower die head, be equipped with the feed inlet at upper die head or lower die head and be provided with the silo that is used for holding the coating thick liquids in the lower die head, feed inlet and silo intercommunication, the front side of upper die head and lower die head forms the die mouth with mutually supporting, wherein, the die cavity that holds the coating thick liquids is enclosed into to upper die head and lower die head, and the slit of die mouth is formed by upper die head and lower die head looks interval in the front side of die cavity; the silo extends along the length direction of lower die head, and the perpendicular to coating direction distributes between upper die head and the lower die head and is provided with a plurality of adjusting sliding blocks, and adjusting sliding block slides along lower die head surface, and adjusting sliding block cooperates the discharge gate that forms the coating thick liquids that have variable width at the die nozzle side. The utility model discloses a die cavity size is adjusted to the control slider, has realized the online adjustment of the coating width of coating die head, and the die cavity need not to be opened in the adjustment process, has improved production efficiency, is favorable to the uniformity production of product.
Description
Technical Field
The utility model relates to a lithium battery pole piece manufacture equipment field especially relates to a coating die head that is used for singly organizing or multiunit lithium battery pole piece.
Background
With the development of new energy industries such as electric vehicles, energy storage batteries and the like in the global range. Power lithium batteries are also of high interest as recognized ideal energy storage elements. The coating machine is key production process equipment of the power lithium battery pole piece. At present, the coating process of the lithium battery pole piece mainly comprises a scraper type, a roller coating transfer type, a slit extrusion type and the like. The extrusion coating process is that coating slurry is extruded along a gap of a coating die under a certain pressure and a certain flow rate and is transferred onto a base material, and the extrusion coating machine is simple in structure, compact in equipment and convenient to debug, can be used for coating of high-viscosity fluid and can obtain a coating with high precision, so that the extrusion coating gradually becomes one of mainstream coating technologies.
At present, the construction cost of an extrusion coating production line of battery pole pieces is high, for example, a slurry mixing coating production line with high automation degree generally needs billions of elements, meanwhile, the updating of power lithium batteries is fast, and one production line is often required to produce pole pieces of various battery models. Accordingly, those skilled in the art have endeavored to provide apparatus for producing various types of lithium battery pole pieces. For example, chinese patent application publication No. CN109585782A discloses an extrusion coating apparatus, which realizes asymmetric zebra coating with different coating width properties by arranging die head shims with different widths of flow dividing ports to match with an upper die head and a lower die head.
The novel die head gasket is provided to realize coating of multiple types of lithium battery pole pieces, is an improvement mode commonly used at present, but needs to be stopped to replace a corresponding size gasket and can be reproduced after readjustment, and the operation is a conventional means in the industry at present, and a die cavity needs to be opened, cleaned, installed, corrected, debugged and tested during operation, so that the production efficiency is delayed, production materials are wasted, and the consequences of large equipment abrasion, low precision, poor product consistency and the like are caused.
In order to achieve a quick and efficient remodeling while reducing waste of raw materials and man-hours, those skilled in the art have worked to develop a coating die for a single or multiple sets of lithium battery pole pieces.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide a coating die head for singly organizing or multiunit lithium battery pole piece, can reduce or avoid because the shut down that the pole piece width transform caused.
In order to achieve the purpose, the utility model provides a coating die head for single group or multiunit lithium battery pole piece, including upper die head and lower die head, upper die head or lower die head are equipped with the feed inlet and are provided with the silo that is used for holding the coating slurry in the lower die head, and the feed inlet communicates with the silo, and the front side of upper die head and lower die head forms the die mouth in coordination, wherein, upper die head and lower die head enclose the die cavity of coating slurry, and the front side of die cavity is by upper die head and lower die head looks interval and form the slit of die mouth; the silo extends along the length direction of lower die head, and the perpendicular to coating direction distributes between upper die head and the lower die head and is provided with a plurality of adjusting sliding blocks, and adjusting sliding block slides along lower die head surface, and adjusting sliding block cooperates the discharge gate that forms the coating thick liquids that have variable width at the die nozzle side.
Further, the adjusting slide block at least comprises a first slide block and a second slide block which are positioned at two ends of the lower die head.
The utility model discloses an in an embodiment, adjust the slider still including being located the linkage slider between first slider and the second slider, be equipped with at least one sliding block set spare between first slider and the second slider, sliding block set spare includes linkage slider and link gear, and the link gear setting is in the outside of die head down and be connected with the linkage slider, and link gear control linkage slider slides along die head down and perpendicular to coating direction.
Furthermore, the linkage mechanism comprises a linkage rod, a sliding sleeve and a connecting strip, the sliding sleeve is connected to the outer edge of the linkage rod through threads, and two ends of the connecting strip are respectively hinged with the sliding sleeve and the linkage sliding block; under the transmission of the linkage rod, the sliding sleeve slides along the linkage rod and pulls the linkage sliding block to slide through the connecting strip.
Furthermore, each sliding block assembly is provided with one or two linkage sliding blocks, and each linkage sliding block is connected with the sliding sleeve through a connecting strip.
Preferably, the outer end of the linkage rod is connected with a handle or a rotating motor.
In one embodiment of the present invention, the connection of the rear side and both sides of the upper die and the lower die is provided with a gasket.
Preferably, a buffer groove is arranged between the material groove and the die nozzle, and the buffer groove has an extending direction parallel to the material groove.
Further preferably, a transition step is arranged between the material groove and the buffer groove, and the height of the transition step is not higher than that of the material outlet.
The utility model discloses an in another embodiment, the die head both ends respectively are equipped with a telescopic machanism down, and telescopic machanism includes the telescopic link, and first slider and second slider all slide with telescopic link fixed connection and under the telescopic link traction.
The utility model has the following technical characteristics:
(1) the utility model realizes the online adjustment of the coating width of the coating die head by adjusting the size of the die cavity through the plurality of sliding blocks sliding along the lower die head, and the die cavity does not need to be opened in the adjustment process, thereby avoiding maintenance procedures such as cleaning and debugging, improving the production efficiency and being beneficial to the consistent production of products;
(2) the utility model discloses set up the activity that link gear etc. come control slide block, adjusted width size through motors etc. and carry out the precision adjustment, improve the coating precision of battery sheet, be favorable to improving product quality.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a coating die head for a lithium battery pole piece according to the present invention.
Fig. 2 is a schematic structural diagram of a gasket for a coating die head of a lithium battery pole piece according to the present invention.
Fig. 3 is a partially enlarged schematic view of the structure at a in fig. 1.
Fig. 4 is a schematic structural view of a lower die part of another embodiment of the coating die head for lithium battery pole pieces of the present invention.
Fig. 5 is a schematic structural diagram of another preferred embodiment of the coating die head for lithium battery pole pieces of the present invention.
FIG. 6 is a schematic cross-sectional view of the coating die of the lithium battery pole piece shown in FIG. 5 along the direction C-C.
Fig. 7 is a schematic structural diagram of the sliding block assembly of the coating die head of the lithium battery pole piece of the present invention.
Fig. 8 is a schematic view of a partial structure at the slide assembly B in the coating die of fig. 6 (ganged slide closed state).
Fig. 9 is a schematic view of a partial structure at the slide assembly B in the coating die of fig. 6 (linked slide open state).
Fig. 10 is a schematic structural view of a linkage slider in a coating die head of a lithium battery pole piece of the present invention.
Fig. 11 is a schematic structural view of another embodiment of the coating die head for lithium battery pole pieces of the present invention.
Fig. 12 is a schematic diagram of another control scheme of the first slide block of the coating die head of the lithium battery pole piece of the present invention.
Fig. 13 is a schematic structural diagram of a coating die head with multiple sets of sliding block assemblies for lithium battery pole pieces.
In the figure, 1, 11, 12, 2, 21, 22, 23, 24, 25, 26, 27, 271, 28, 3, 4, 41, 42, 421, 43, 5, 51, 52, 53, 54, 55, 56 rotating electrical machines horizontal pushing electrical machines.
Detailed Description
Example 1
Fig. 1 shows a coating die head for a single group of lithium battery pole pieces, which includes an upper die head 1 and a lower die head 2, the lower die head 2 is provided with a feed port 21 and a trough 22 for accommodating coating slurry, the feed port 21 is communicated with the trough 22, the upper die head 1 and the lower die head 2 enclose a die cavity for coating slurry, and the front sides of the upper die head 1 and the lower die head 2 cooperatively form a die nozzle 3. Specifically, the rear sides and both sides of the upper die 1 and the lower die 2 are connected by studs, and a gasket 23 is provided at the connection, as shown in fig. 2, the gasket 23 has a certain thickness and forms steps at the rear sides and both sides at the lower die 2, so that the rear sides and both sides of the upper die 1 and the lower die 2 are hermetically connected by the gasket 23 and are penetrated and connected by the studs to form a die cavity, and the front sides form slits of the die nozzle 3 due to the absence of the gasket 23. A first slide block 24 and a second slide block 25 are distributed between the upper die head 1 and the lower die head 2 and are perpendicular to the coating direction (which means the extrusion direction of the coating slurry), and the first slide block 24 and the second slide block 25 are matched at the side of the die nozzle 3 to form a discharge port of the coating slurry with variable width.
The front end of the upper die head 1 is also provided with an adjusting gap 11 which is oriented to be vertical to the coating direction, and the adjusting gap 11 is provided with a gap adjusting mechanism for adjusting the opening size of the coating slurry at the discharge hole of the die nozzle 3. The clearance adjustment mechanism includes along adjusting 11 length direction evenly distributed's in clearance several and adjusts screw 12 to and from 1 top of last die head through adjusting the adjusting screw 12 and connect the adjusting screw who adjusts 11 bottoms in clearance, adjust the size of discharge gate through the degree that sets up adjusting screw and through the screw of screwing up, be favorable to ensureing the evenly distributed of coating thickness.
The trough 22 extends along the length direction of the lower die head 2, the feed inlet 21 is externally connected with a feed pipeline, coating slurry enters the trough 22 from the feed inlet 21, after the trough 22 is filled with the slurry, the coating slurry overflows the die cavity, and under the pressure of the feed pipeline, the coating slurry overflows the trough 22 and then reaches the slit of the die nozzle 3. Preferably, a buffer groove 26 is provided between the hopper 22 and the nozzle 3, the buffer groove 26 has an extending direction parallel to the hopper 22, the lower die head 2 has a transition step 27 between the hopper 22 and the buffer groove 26, the transition step 27 has a height not higher than the discharge port, and the structure thereof is as shown in fig. 3. Coating slurry overflows from the trough 22, flows through the transition step 27, reaches the buffer tank 26, flows to the discharge port, and is subjected to multiple buffering processes, so that the coating slurry has uniform and moderate internal pressure when reaching the discharge port, uniform coating of the lithium battery pole pieces is facilitated, and uniform film thickness after coating is achieved.
The cross-sectional shapes of the first slide block 24 and the second slide block 25 along the length direction thereof correspond to the longitudinal cross-sectional shape of the die cavity in the same direction, therefore, the lower sides of the two slide blocks fill the gaps of the material groove 22 and the buffer groove 26 on the lower sides thereof, and play a role of a fence for the coating slurry in the die cavity, the position of the feed port 21 is located between the two slide blocks (for example, located in the middle of the lower die head 2, the feed port 21 is arranged to avoid being located outside the area surrounded by the slide blocks due to the movement of the slide blocks), the coating slurry is distributed between the two slide blocks along with the feeding of the feed port 21, and is finally extruded along the discharge port formed between the two slide blocks, and the coating width can be realized by adjusting the distance between the first slide block.
Two ends of the lower die head 2 are respectively provided with a telescopic mechanism 4 which comprises a telescopic rod 41, and the first sliding block 24 and the second sliding block 25 are both connected with the telescopic rod 41 and slide under the traction of the telescopic rod 41. Preferably, the first slider 24 and the second slider 25 are provided with a drawing block 42 extending outwards, the drawing block 42 has at least two drawing columns 421, the drawing columns 421 are uniformly distributed along a plane and horizontally penetrate through the outer wall of the lower die head 2 to be connected with the first slider 24 and the second slider 25 therein, and the drawing columns are used for guiding the first slider 24 and the second slider 25 to enable the first slider 24 and the second slider 25 to horizontally and stably slide. The telescopic rod 41 passes through the traction block 42 and is fixedly connected with the traction block. The distance between the two sliding blocks is adjusted according to production requirements to realize width adjustment of extrusion coating, in the adjustment process, a die cavity does not need to be opened, and subsequent production can be carried out only after the internal pressure of coating slurry is stable because the volume of the die cavity is changed after the positions of the sliding blocks are adjusted.
Example 2
The embodiment provides a coating die head for a single group of lithium battery pole pieces, which is similar to the structure of embodiment 1 and comprises an upper die head 1 and a lower die head 2, wherein the lower die head 2 is provided with a feed inlet 21 and a trough 22 for containing coating slurry, the feed inlet 21 is communicated with the trough 22, the upper die head 1 and the lower die head 2 enclose a die cavity for coating slurry, and the front sides of the upper die head 1 and the lower die head 2 are matched to form a die nozzle 3. The difference is that no gasket is arranged at the joint between the upper die head 1 and the lower die head 2, as shown in fig. 4, a connecting platform 28 is formed at the joint surface of the upper die head 1 or the lower die head 2, the connecting platform 28 is integrally formed with the upper/lower die heads, is arranged at the joint of the rear side and the two sides, and is provided with a screw hole, and after the upper die head 1 and the lower die head 2 are connected through a stud, a slit of the die nozzle 3 is formed at the front side. And a first slide block 24 and a second slide block 25 are distributed between the upper die head 1 and the lower die head 2 and are perpendicular to the coating direction, and the first slide block 24 and the second slide block 25 are matched on the side of the die nozzle 3 to form a coating slurry outlet with variable width.
Example 3
Fig. 5 and 6 show a preferred embodiment of a coating die head for single or multiple groups of lithium battery pole pieces, which includes an upper die head 1 and a lower die head 2, wherein the lower die head 2 is provided with a feed inlet 21 and a trough 22 for containing coating slurry, the feed inlet 21 is externally connected with a feed pipe and is communicated with the trough 22, the upper die head 1 and the lower die head 2 enclose a die cavity for coating slurry, and the front sides of the upper die head 1 and the lower die head 2 cooperatively form a die nozzle 3. Specifically, the rear side and both sides of the upper die 1 and the lower die 2 are connected by a stud, and a slit is formed in the front side due to a height difference by providing a spacer 23 or an integrally formed connecting table 28 on the rear side and both sides of the joint surface. Thus, the rear and both sides of the upper die 1 and the lower die 2 are connected via sealing to form a cavity, and the front side forms a slit of the nozzle 3. Silo 22 extends along the length direction of lower die head 2, and coating slurry gets into silo 22 from feed inlet 21, still is equipped with dashpot 26 between silo 22 and die nozzle 3, and dashpot 26 has the extending direction parallel with silo 22, and lower die head 2 has transition halfpace 27 between silo 22 and dashpot 26, and transition halfpace 27 is not higher than the discharge gate. The coating slurry enters from the feed inlet 21, overflows from the feed chute 22, flows through the transition step 27, reaches the buffer tank 26, flows to the discharge outlet, and is uniformly coated on the battery pole piece through the die nozzle 3 in the process of multiple times of buffering.
In the gap between the upper die head 1 and the lower die head 2, a first slider 24 and a second slider 25 are arranged in a direction perpendicular to the coating direction, and the first slider 24 and the second slider 25 slide against the lower die head 2. A slide block assembly 5 is arranged between the first slide block 24 and the second slide block 25, the slide block assemblies 5 are respectively arranged on left and right side linkage slide blocks 51 and a linkage rod 52 arranged on the outer side of the lower die head 2, the linkage rod 52 passes through the side wall of the lower die head 2 through a connecting hole and extends into the die cavity, a sliding sleeve 53 is arranged outside the linkage rod 52 and is connected with the linkage slide blocks 51, and the linkage rod 52 and the sliding sleeve 53 are in threaded fit transmission to convert the rotation of the linkage rod 52 into the movement of the sliding sleeve 53 along the linkage rod 52. Two connecting strips 54 are arranged on the sliding sleeve 53 and connected, the connecting strips 54 are respectively rotatably connected with the linkage sliding block 51 on one side, two ends of each connecting strip 54 are respectively hinged with the sliding sleeve 53 and the linkage sliding block 51, optionally, two ends of each connecting strip 54 are provided with shaft holes, the sliding sleeve 53 and the linkage sliding block 51 are respectively provided with a shaft column, and the shaft holes of the connecting strips 54 are sleeved on the shaft columns to realize movable connection; when the sliding sleeve 53 moves along the connecting bar 54 to make the connecting bar 54 rotate and then fold toward the linkage rod 52, the linkage sliders 51 at the two sides are drawn to close, and when the sliding sleeve 53 moves along the connecting bar 54 to make the connecting bar 54 rotate and then open in the direction back to the linkage rod 52, the linkage sliders 51 at the two sides are pushed by the connecting bar 54 to open, so that the distance is increased.
In this example, a specific embodiment of the above-described linkage mechanism is shown, and the left and right two linkage sliders 51 are controlled by the linkage mechanism to slide along the lower die 2 and perpendicular to the coating direction, as shown in fig. 7. Wherein, a linkage rod 52 in the linkage mechanism passes through the lower die head 2 and the trough 22 and stops at one side of a transition step 27 between the trough 22 and the buffer trough 26. A limit groove 271 is formed in the transition step platform 27, and the moving area of the sliding sleeve 53 on the linkage rod 52 is limited to a linear portion between the limit groove 271 and the inner side wall of the trough 22. As shown in fig. 8-9, when the sliding sleeve 53 is driven by the linkage rod 52 to move forward, the connecting bars 54 connected with the sliding sleeve tend to be folded, and the linkage sliders 51 at the two sides are pulled to slide towards each other; when the sliding sleeve 53 is driven by the linkage rod to move towards the rear side, the connecting bar 54 is opened, and the linkage sliding blocks 51 at the two sides are pushed to slide back and forth, so that the distance is increased.
The two ends of the lower die head 2 are respectively provided with a telescopic mechanism 4, each telescopic mechanism 4 comprises a telescopic rod 41, the telescopic rods 41 at the two ends are respectively connected with the first sliding block 24 and the second sliding block 25, and the telescopic rods 41 stretch to drive the first sliding block 24 and the second sliding block 25 to slide.
Therefore, four sliders are slidably disposed on the lower die head 2 of the present embodiment, wherein the first slider 24 and the second slider 25 at two ends respectively control sliding, and the two linkage sliders 51 in the middle are driven by the linkage rod 52 to simultaneously slide in the opening or closing direction. The cross-sectional shape of the four sliders in the vertical direction in the coating direction corresponds to the cross-sectional shape of the cavity, and as shown in fig. 10, each slider acts as a fence for the coating slurry in the cavity, and by cooperation of the four sliders, at least one flow area of the coating slurry is defined, and a discharge port with a variable width is formed in cooperation on the die nozzle 3 side.
In one embodiment of the present embodiment, a left-side first slide 24 and a left-side interlocking slide 51 define a slurry coating area, a right-side interlocking slide 51 and a right-side second slide 25 define another slurry coating area, two feed openings 21 are respectively arranged between the two sets of slides, and the slide distance of the slides is controlled not to exceed the feed openings 21 so that the feed openings 21 leak out of the areas, thereby forming a coating die head with variable width for two sets of lithium battery pole pieces through the two sets of slides.
When the precision requirement on the coating width is low, in the linkage mechanism and the telescopic mechanism 4, the outer end part of the linkage rod 52 is provided with a handle 55 for controlling the linkage rod 52 to rotate along the central shaft thereof so as to drive the linkage sliding blocks 51 at the two sides to slide; the outer end of the telescopic rod 41 is also provided with a handle 55 for an operator to hold the handle 55 to move forward and backward to pull the connected slide block to slide forward and backward correspondingly, and to adjust in real time according to the measured coating width.
Example 4
The embodiment provides a coating die head for single-group or multi-group lithium battery pole pieces, the structure of the coating die head is the same as that of the embodiment 3, and compared with the structure of the embodiment 3, the coating die head of the embodiment is improved in that a linkage mechanism and a telescopic mechanism 4 are both driven by a motor connection, as shown in fig. 11. Specifically, the end of the linkage rod 52 of the linkage mechanism is connected with a rotating motor 56, and the rotating motor 56 drives the linkage rod 52 to rotate, so that the precise sliding of the linkage sliders 51 at two sides is controlled; the end of the telescopic rod 41 of the telescopic mechanism 4 is connected with a horizontal pushing motor 43, the output end of the horizontal pushing motor 43 is connected with the telescopic rod 41, and the first sliding block 24 and the second sliding block 25 are both connected with the telescopic rod 41 and precisely slide back and forth under the driving of the horizontal pushing motor 43. The selection of the motor is selected according to the precision requirement of actual width adjustment, and a motor product which is common in the field is adopted. Preferably, the motor is a servo motor to achieve precise control. The motors are connected to the outer side of the lower die head 2 through motor seats.
Example 5
The embodiment provides a coating die head for single-group or multi-group lithium battery pole pieces, which has the same structure as that of embodiment 4, and compared with the structure of embodiment 4, the difference of the embodiment is that the telescopic mechanisms 4 on both sides of the lower die head 2 are eliminated, and a two-side linkage mechanism is additionally arranged to control the first slide block 24 and the second slide block 25.
As shown in fig. 12, similarly to the middle linkage mechanism in the previous embodiment, linkage rods 52 driven by a motor are respectively arranged at the same side of the lower die head 2 and corresponding positions of the first slide block 24 and the second slide block 25, a sliding sleeve 53 is arranged on the linkage rods 52, the first slide block 24 and the second slide block 25 are respectively hinged with a connecting bar 54, and the other end of the connecting bar 54 is hinged with the sliding sleeve 53. During adjustment, the motor drives the linkage rod 52 to rotate, so that the sliding sleeve 53 is controlled to slide back and forth along the linkage rod 52 to drive the connecting strip 54, and the connecting strip 54 pulls the other end of the sliding sleeve to be movably connected with the first sliding block 24 or the second sliding block 25, so that sliding control of the first sliding block 24 and the second sliding block 25 is realized.
Example 6
The present embodiment provides a coating die head for single or multiple groups of lithium battery pole pieces, which has the same structure as that of embodiment 4, and compared with the structure of embodiment 4, the difference of the present embodiment is that multiple groups of linkage mechanisms are arranged between the first slider 24 and the second slider 25, as shown in fig. 13, the coating die head for lithium battery pole pieces with two groups of linkage mechanisms forms a plurality of coating discharge ports on the side of the die nozzle 3 through the cooperation of the plurality of sliders.
According to the scheme of this embodiment, under the prerequisite that does not influence the feeding of feed inlet 21, lithium-ion battery pole piece's coating die head can set up the distance between each slider according to actual need and form a plurality of discharge gates that have variable coating width to need not open the die cavity during above-mentioned adjustment, only need make the discharge gate reach the product requirement according to required width through corresponding motor, wait to coat after the thick liquids flow in the thick liquids die cavity is stable after the adjustment, can continue to produce.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A coating die head for a single group or multiple groups of lithium battery pole pieces comprises an upper die head and a lower die head, wherein a feed inlet is formed in the upper die head or the lower die head, a trough used for containing coating slurry is arranged in the lower die head, the feed inlet is communicated with the trough, and the front sides of the upper die head and the lower die head are matched to form a die nozzle; the silo extends along the length direction of lower die head, and the perpendicular to coating direction distributes between upper die head and the lower die head and is provided with a plurality of adjusting sliding blocks, and adjusting sliding block slides along lower die head surface, and adjusting sliding block cooperates the discharge gate that forms the coating thick liquids that have variable width at the die nozzle side.
2. The coating die of claim 1, wherein the adjustment slides include at least a first slide and a second slide positioned at opposite ends of the lower die.
3. The coating die of claim 2, wherein the adjustment slide further comprises a linkage slide positioned between the first slide and the second slide, at least one slide assembly positioned between the first slide and the second slide, the slide assembly comprising a linkage slide and a linkage mechanism, the linkage mechanism positioned outside the lower die and coupled to the linkage slide, the linkage mechanism controlling the linkage slide to slide along the lower die and perpendicular to the coating direction.
4. The coating die head of claim 3, wherein the linkage mechanism comprises a linkage rod, a sliding sleeve and a connecting strip, the sliding sleeve is connected with the outer edge of the linkage rod through threads, and two ends of the connecting strip are respectively hinged with the sliding sleeve and the linkage sliding block; under the transmission of the linkage rod, the sliding sleeve slides along the linkage rod and pulls the linkage sliding block to slide through the connecting strip.
5. The coating die of claim 4 wherein there are one or two ganged slides in each slide assembly and each ganged slide is connected to the slide sleeve by a connecting bar.
6. The coating die of claim 4, wherein the outer end of the linkage bar is connected to a handle or a rotating motor.
7. The coating die of claim 1, wherein the upper die and the lower die are provided with shims at the junctions of the rear side and the two sides.
8. The coating die of claim 1, wherein a buffer slot is provided between the trough and the die nozzle, the buffer slot having a direction of extension parallel to the trough.
9. The coating die of claim 8, wherein a transition step is provided between the hopper and the buffer tank, and the height of the transition step is not higher than that of the discharge port.
10. The coating die head of claim 1, wherein the lower die head is provided with a telescoping mechanism at each end, the telescoping mechanism comprises a telescoping rod, and the first slide block and the second slide block are fixedly connected with the telescoping rod and slide under the traction of the telescoping rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921121964.6U CN210279700U (en) | 2019-07-17 | 2019-07-17 | Coating die head for single-group or multi-group lithium battery pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921121964.6U CN210279700U (en) | 2019-07-17 | 2019-07-17 | Coating die head for single-group or multi-group lithium battery pole piece |
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| CN210279700U true CN210279700U (en) | 2020-04-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302942A (en) * | 2019-07-17 | 2019-10-08 | 宁波维科电池有限公司 | For single group or the coating die head of multiple groups lithium battery pole slice |
| CN114505432A (en) * | 2022-02-24 | 2022-05-17 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing cross section width of stamping part and pier extrusion finish cutting process |
| CN116060251A (en) * | 2021-10-29 | 2023-05-05 | 宁德时代新能源科技股份有限公司 | Coating device, coating system and coating method |
| CN116441118A (en) * | 2023-04-10 | 2023-07-18 | 上川精密科技(无锡)有限公司 | Lithium battery coating die head cavity structure |
| WO2024039190A1 (en) * | 2022-08-17 | 2024-02-22 | 주식회사 엘지에너지솔루션 | Slot die coater capable of automatically controlling position of shim plate and method for controlling position of shim plate of slot die coater |
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2019
- 2019-07-17 CN CN201921121964.6U patent/CN210279700U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302942A (en) * | 2019-07-17 | 2019-10-08 | 宁波维科电池有限公司 | For single group or the coating die head of multiple groups lithium battery pole slice |
| CN110302942B (en) * | 2019-07-17 | 2024-05-24 | 宁波维科电池有限公司 | Coating die head for single or multiple groups of lithium battery pole pieces |
| CN116060251A (en) * | 2021-10-29 | 2023-05-05 | 宁德时代新能源科技股份有限公司 | Coating device, coating system and coating method |
| CN114505432A (en) * | 2022-02-24 | 2022-05-17 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing cross section width of stamping part and pier extrusion finish cutting process |
| CN114505432B (en) * | 2022-02-24 | 2024-05-14 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing section width of stamping part and pier extrusion precision cutting process |
| WO2024039190A1 (en) * | 2022-08-17 | 2024-02-22 | 주식회사 엘지에너지솔루션 | Slot die coater capable of automatically controlling position of shim plate and method for controlling position of shim plate of slot die coater |
| CN116441118A (en) * | 2023-04-10 | 2023-07-18 | 上川精密科技(无锡)有限公司 | Lithium battery coating die head cavity structure |
| CN116441118B (en) * | 2023-04-10 | 2024-02-13 | 上川精密科技(无锡)有限公司 | Lithium battery coating die head cavity structure |
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