CN114192346B - Coating gasket and coating die head - Google Patents
Coating gasket and coating die head Download PDFInfo
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- CN114192346B CN114192346B CN202111327430.0A CN202111327430A CN114192346B CN 114192346 B CN114192346 B CN 114192346B CN 202111327430 A CN202111327430 A CN 202111327430A CN 114192346 B CN114192346 B CN 114192346B
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- block
- gasket
- groove
- auxiliary material
- slurry
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- 239000011248 coating agent Substances 0.000 title claims abstract description 41
- 238000000576 coating method Methods 0.000 title claims abstract description 41
- 239000002002 slurry Substances 0.000 claims description 85
- 239000000463 material Substances 0.000 claims description 60
- 238000003475 lamination Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 11
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 5
- 239000000919 ceramic Substances 0.000 description 23
- 239000011888 foil Substances 0.000 description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007581 slurry coating method Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coating Apparatus (AREA)
Abstract
The utility model provides a coating gasket and coating die head, including the main part gasket, the main part gasket includes base member and at least two extend the block, two extend the block all set up on the same side of base member, and be provided with the interval between two extend the block, the base member is close to the lateral wall that extends the block and two side walls that extend the block enclose into the thick liquids groove jointly, in arbitrary one extension block, extend the block and be close to detachably on the lateral wall of thick liquids groove and set up a dog, the dog extends toward the thick liquids inslot, so, when the thick liquids thick side of coating is cut down to needs, only need change the dog with the width that changes the thick liquids stream can, thereby can cut down the thick side of pole piece fast accurately, effectively improve the quality of cutting down.
Description
Technical Field
The application relates to the technical field of lithium battery slurry coating, in particular to a coating gasket and a coating die head.
Background
The coating gasket is a structure used in a coating die head, and the coating die head can be used for coating battery slurry on a foil material in a strip shape to form a pole piece through the coating gasket, and the pole piece is dried and then subjected to cutting, tab welding, winding and other processes to form a winding core of a lithium battery, so that slurry coating is an important ring in the production process of the lithium battery, and the quality of coating is related to the quality of the subsequent lithium battery performance.
After the slurry is coated on the foil, the slurry on the side edge is exposed and volatilized faster, so that the slurry can be dried faster, thick edges are formed on the side edge by the slurry under the action of surface tension, and therefore the slurry is required to be thinned when coated, chamfering is formed at the slurry outlet of the gasket in the current stage, so that the width of the slurry extruded from the die head is increased, the thickness of the side edge is thinned when the slurry is coated on the foil, the thinning effect is determined by the size of the chamfering, the thickness of the slurry can be increased by increasing the chamfering, the thinning effect is increased, the extrusion width of the slurry can be reduced by reducing the chamfering, and the thinning effect is reduced.
However, the chamfering method has the following problems that the chamfering capability is poor, and when there is a slight difference in the size of the chamfer, the effect of chamfering is large, so that the purpose of precisely chamfering thick edges is difficult to achieve.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provide a coating gasket and a coating die head, which can improve the thickness trimming precision of a polar plate, thereby improving the trimming quality.
The aim of the application is realized by the following technical scheme:
a coated gasket comprising:
the main body gasket comprises a base body and at least two extending blocks, wherein the two extending blocks are arranged on the same side edge of the base body, a space is arranged between the two extending blocks, and the side wall, close to the extending blocks, of the base body and the side wall of the two extending blocks jointly enclose a slurry groove;
in any one of the extending blocks, a stop block is detachably arranged on the side wall, close to the slurry tank, of the extending block, and the stop block extends into the slurry tank.
In one embodiment, the extending block body is provided with a clamping groove, the stop block is provided with a clamping boss, and the clamping boss is accommodated in the clamping groove in an adaptive manner.
In one embodiment, two clamping grooves are formed, two clamping bosses are arranged, and the two clamping bosses are correspondingly accommodated in the two clamping grooves one by one.
In one embodiment, the clamping groove is in an L-shaped groove structure.
In one embodiment, the stop comprises at least two laminations, each lamination being stacked on top of the other to form the stop.
In one embodiment, the width of each lamination decreases from bottom to top in the stacking direction.
In one embodiment, the main body gasket is provided with an auxiliary material channel, and an opening of the auxiliary material channel is positioned on a side edge of the extension block away from the base body.
In one embodiment, the auxiliary material channel comprises a material guiding section, a first auxiliary material groove, a second auxiliary material groove and a material discharging section which are sequentially connected, and the opening is positioned at one end of the material discharging section away from the second auxiliary material groove.
In one embodiment, the first auxiliary material groove is located on one side surface of the main body gasket, the second auxiliary material groove is located on the other side surface of the main body gasket, and the first auxiliary material groove is communicated with the second auxiliary material groove.
A coating die comprising an upper die, a lower die, and a coating gasket as described in any of the foregoing, the coating gasket being disposed between the upper die and the lower die.
Compared with the prior art, the application has at least the following advantages:
the coating gasket and the coating die head comprise a main gasket, wherein the main gasket comprises a substrate and at least two extending blocks, the two extending blocks are arranged on the same side edge of the substrate, a space is arranged between the two extending blocks, the side wall of the substrate, which is close to the extending blocks, and the side wall of the two extending blocks jointly enclose a slurry groove, a stop block is detachably arranged on the side wall of the extending block, which is close to the slurry groove, in any one extending block, and the stop block extends into the slurry groove, so that when thick edges of coated slurry are required to be cut down, only the stop block is required to be replaced to change the width of slurry flow, thereby the thick edges of the pole pieces can be thinned rapidly and accurately, and the thinning quality is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front structure of a coated gasket according to an embodiment of the present application;
FIG. 2 is a schematic view of a portion of the structure of the coated gasket shown in FIG. 1;
FIG. 3 is a schematic view of a portion of the coated gasket shown in FIG. 1 at another angle;
FIG. 4 is a schematic view of a block according to an embodiment of the present application;
FIG. 5 is a schematic view of the partial enlarged structure of FIG. 1;
FIG. 6 is a schematic view of a portion of the back side of the coated gasket shown in FIG. 1;
fig. 7 is a schematic cross-sectional structure of a coating die according to an embodiment of the present application.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the application.
Referring to fig. 1, a coating gasket 10 includes a main gasket 100, the main gasket 100 includes a base 110 and at least two extending blocks 120, the two extending blocks 120 are disposed on the same side of the base 110, a space is provided between the two extending blocks 120, a slurry tank is enclosed by a sidewall of the base 110 adjacent to the extending blocks 120 and a sidewall of the two extending blocks 120, in any one extending block 120, a stopper 200 is detachably disposed on a sidewall of the extending block 120 adjacent to the slurry tank, and the stopper 200 extends into the slurry tank.
It should be noted that, the main body gasket 100 is formed by the base 110 and at least two extending blocks 120, for example, the base 110 is in a rectangular sheet structure as a whole, at least two extending blocks 120 are disposed on the same side edge of the base 110, a distance is disposed between the two extending blocks 120, so that the base 110 and the two extending blocks 120 form a structure similar to a U shape, and the side walls of the base 110 and the side walls of the extending blocks 120 jointly enclose a slurry tank, wherein the number of the extending blocks 120 is at least two, one slurry tank can be formed between every two adjacent extending blocks 120, and one slurry tank is used for coating a slurry belt on a foil, therefore, in practice, a plurality of extending blocks 120 can be disposed as required, for example, when 3 extending blocks 120 are disposed, two slurry tanks can be formed, so that the coating efficiency can be improved; in an embodiment, the extension block 120 and the base 110 are integrally formed, so as to improve the structural strength of the connection portion between the extension block 120 and the base 110 and prevent cracking.
Further, in each extension block 120, a detachable block 200 is disposed on a side wall of the extension block 120 adjacent to the slurry tank, and the block 200 extends and protrudes toward the slurry tank. The block 200 is detachably connected with the extension block 120, for example, a boss is formed on one of the extension block 120 and the block 200, a groove is formed on the other of the extension block and the block 200, and then the boss is clamped in the groove; secondly, the width of the slurry groove between the two extending blocks 120 is larger than that between the two extending blocks 200, which is equivalent to reducing the flowable width of the slurry by using the blocks 200, so that when the slurry is extruded through the blocks 200, the width of the slurry band is narrowed and widened from wide to narrow, and the slurry on both sides is diffused when the slurry is widened from narrow, and the thick edges when the slurry is coated are effectively reduced, thereby realizing the purpose of thinning the thick edges, and because the blocks 200 are detachably arranged on the extending blocks 120, when the slurry needs to be changed to pass through the distance between the two blocks 200, only the blocks 200 with different widths need to be changed, and thus, the width of the slurry flow channel can be changed by changing the blocks 200, and the blocks 200 reaching the optimal thick edge thinning can be rapidly and accurately determined.
Referring to fig. 2, in an embodiment, the extending block 120 is provided with a clamping groove 121, the stop block 200 is provided with a clamping boss 210, and the clamping boss 210 is accommodated in the clamping groove 121 in an adaptive manner.
It should be noted that, in order to realize the detachable installation of the stop block 200 on the extension block 120, the stop block 200 is prevented from sliding off from the extension block 120, so the extension block 120 is provided with the clamping groove 121, and the stop block 200 is provided with the clamping boss 210, wherein the clamping boss 210 and the clamping groove 121 are installed in an adapting manner, that is, the clamping boss 210 can be installed and accommodated in the clamping groove 121 without gaps.
Referring to fig. 2, in an embodiment, the clamping groove 121 is an L-shaped groove structure. It should be noted that, the clamping boss 210 is an L-shaped boss structure adapted to the L-shaped groove structure, so that the L-shaped boss structure can be ensured to be clamped in the L-shaped groove structure, the L-shaped boss structure is prevented from sliding out of the L-shaped groove structure, and when the coating gasket 10 is installed in the coating die head for use, the stop block 200 can be effectively prevented from falling off from the extension block 120.
Further, in an embodiment, the clamping groove 121 is a circular groove structure, the clamping boss 210 is a circular boss structure adapted to the circular groove structure, the outer side wall of the circular boss is clamped by the inner side wall of the circular groove, the purpose of clamping and fixing the stop block 200 and the extension block 120 can be achieved, further, the clamping groove 121 can be further provided with any groove structure, and only the clamping boss 210 is required to be provided with a boss structure adapted to the clamping groove 121, so that the fixing mode between the stop block 200 and the extension block 120 is more diversified.
Referring to fig. 2, in an embodiment, two clamping grooves 121 are formed, two clamping bosses 210 are provided, and the two clamping bosses 210 are accommodated in the two clamping grooves 121 in a one-to-one correspondence. It should be noted that, since the stopper 200 is usually configured in a rectangular structure in actual use, in order to improve stability of two ends of the stopper 200, structural strength between the stopper 200 and the extension block 120 is enhanced, and therefore, two clamping bosses 210 are disposed on the stopper 200, and two clamping grooves 121 are disposed on the extension block 120, so that the two clamping bosses 210 are accommodated in the two clamping grooves 121 in a one-to-one correspondence, and thus, structural strength of the stopper 200 can be effectively improved.
Referring to fig. 3, in one embodiment, the stop 200 includes at least two laminations 220, each lamination 220 being stacked on each other to form the stop 200, the width D of each lamination 220 decreasing from bottom to top in the stacking direction.
It should be noted that, when the stopper 200 is configured to be formed by stacking a plurality of laminations 220 in sequence, for example, the stopper 200 is configured to be formed by stacking three laminations 220, and when the laminations 220 are configured to be formed by stacking a plurality of laminations 220 with different widths, for example, when the width D of each lamination 220 decreases from the stacking direction from bottom to top, the stacked stopper 200 is configured to have a step structure, so that when the slurry passes through the stopper 200 having a step structure, the flow velocity of the edge of the slurry is improved, and the thick edge can be further reduced when the slurry is coated on the foil; in one embodiment, the clamping boss 210 is also a multi-layer structure.
Further, referring to fig. 4, in one embodiment, the width D of each lamination 220 varies alternately from bottom to top in the lamination direction. It should be noted that, when the widths of the laminations 220 in the stop 200 are alternately changed, when the slurry flows through the stop 200, the slurry edge is blocked by the lamination 220 with the larger width D to slow down the flow rate, and the flow rate of the slurry located on the lamination 220 with the smaller width D is not reduced, so that the flow rate of the slurry edge is changed in a staggered manner, and when the slurry is coated on the foil, the thick edge on the foil can be thinned.
Referring to fig. 3, in one embodiment, the sum of the thicknesses H of the laminations 220 is equal to the thickness G of the extension block 120. It should be noted that, since each lamination 220 is laminated to form the stopper 200, the thickness of each lamination 220 is set to be equal to the thickness of the extension block 120, so that the coating gasket 10 can be reliably clamped and fixed when being mounted on the coating die; for example, the thickness of the base 110 and the extension block 120 is in the range of 0.6mm to 1mm, and the extension block 120 and the base 110 are integrally formed, so the thickness of the body gasket 100 is in the range of 0.6mm to 1mm.
Referring to fig. 2 and 3, in one embodiment, in any of the extension blocks 120, an inclined block 300 is further disposed on a sidewall of the extension block 120 adjacent to the slurry tank, the inclined block 300 is disposed adjacent to the block 200, and the inclined block 300 is located on a side of the block 200 adjacent to the base 110.
It should be noted that, because the detachable structure is between the block 200 and the extension block 120, although the two are adaptive structures, a fine gap is inevitably formed between the two, so that in actual use, slurry is extruded into the fine gap under pressure, when the slurry extrudes the gap between the block 200 and the extension block 120 for a long time, the gap between the two is easily increased, in order to reduce extrusion of the slurry, the extension block 120 is provided with the inclined block 300, the inclined block 300 is provided with the inclined surface 310, and the slurry flowing through the inclined surface 310 is guided, so that extrusion of the slurry to the gap between the extension block 120 and the block 200 is effectively weakened, thereby realizing the purpose of protecting the block 200 and prolonging the service life of the block.
Referring to fig. 2, in one embodiment, the main body pad 100 is provided with an auxiliary material channel 130, and an opening of the auxiliary material channel 130 is located on a side of the extension block 120 away from the base 110.
It should be noted that, the main body gasket 100 is further provided with the auxiliary material channel 130, where the auxiliary material channel 130 is used for circulating ceramic slurry, specifically, the auxiliary material channel 130 extends from the base 110 to the extending block 120, and the auxiliary material channel 130 is located at one side of the slurry tank, and each slurry tank is surrounded by two extending blocks 120, so that the extending blocks 120 at two sides of the slurry tank are provided with the auxiliary material channel 130, and when the slurry is coated, the auxiliary material channel 130 is also coated with ceramic slurry, so that ceramic slurry can be coated at two sides of the slurry of the foil, and after ceramic slurry is coated on the foil, the subsequent generation of beads on the foil during welding of the formed pole pieces can be effectively avoided.
Referring to fig. 2, 5 and 6, in an embodiment, the auxiliary material channel 130 includes a material guiding section 131, a first auxiliary material tank 132, a second auxiliary material tank 133 and a material discharging section 134 sequentially connected, and an opening is located at an end of the material discharging section 134 away from the second auxiliary material tank 133.
It should be noted that, in order to realize the flow rate and flow control of the ceramic slurry in the auxiliary material channel 130, the auxiliary material channel 130 is configured to be sequentially connected by the material guiding section 131, the first auxiliary material groove 132, the second auxiliary material groove 133 and the discharging section 134, wherein the material guiding section 131 is located on the base 110, the first auxiliary material groove 132 is located on a connection part between the base 110 and the extending block 120, and a vertical structure is formed between the material guiding section 131 and the first auxiliary material groove 132, further, the second auxiliary material groove 133 and the discharging section 134 are both located on the extending block 120, wherein the opening of the auxiliary material channel 130 is located at one end of the discharging section 134 far from the second auxiliary material groove 133, so that when the ceramic slurry enters the material guiding section 131 through the coating die head, the flow rate of the ceramic slurry can be effectively reduced due to the need of right angle turning, and thus, the ceramic slurry is sequentially extruded from the discharging section 134 to be coated on the foil after passing through the first auxiliary material groove 132 and the second auxiliary material groove 133, so that the flow rate and flow control of the ceramic slurry is realized to improve the accuracy of the coating of the ceramic slurry on the foil material.
Further, referring to fig. 5 and 6, in one embodiment, the first auxiliary tank 132 is located on one side of the main body gasket 100, the second auxiliary tank 133 is located on the other side of the main body gasket 100, and the first auxiliary tank 132 is in communication with the second auxiliary tank 133.
It should be noted that, the first auxiliary groove 132 is located on one side surface of the main body gasket 100, that is, the first auxiliary groove 132 is not a through hole structure penetrating the main body gasket 100, but a groove with a certain depth is formed on one side surface of the main body gasket 100, for example, since the thickness of the main body gasket 100 ranges from 0.6mm to 1mm, for example, the thickness of the main body gasket 100 is 0.8mm, the depth of the first auxiliary groove 132 needs to be less than 0.8mm to ensure that the first auxiliary groove 132 does not penetrate the main body gasket 100; further, the second auxiliary tank 133 is located on the other side surface of the main body gasket 100, the structure of the second auxiliary tank 133 is similar to that of the first auxiliary tank 132, and the through hole structure of the main body gasket 100 is not penetrated, but the material guiding section 131 and the material discharging section 134 are penetrated through the main body gasket 100, further, one end portion of the first auxiliary tank 132, which is close to the second auxiliary tank 133, is overlapped, so that the first auxiliary tank 132 is communicated with the second auxiliary tank 133, for example, when the thickness of the main body gasket 100 is 0.8mm, the depth value of the first auxiliary tank 132 and the second auxiliary tank 133 is 0.6mm, when one end, which is close to the first auxiliary tank 132, is partially overlapped, the two can be realized, so that when ceramic slurry enters the first auxiliary tank 132 from the material guiding section 131, the flow of the ceramic slurry can be reduced, when the ceramic slurry flows from the first auxiliary tank 132 to the second auxiliary tank 133, the diameter of the communication hole between the first auxiliary tank 132 and the second auxiliary tank 133 is further reduced, for further reducing the flow of the ceramic slurry, for example, when the ceramic slurry enters the second auxiliary tank 132, the ceramic tank is further reduced, and the ceramic slurry can be coated on the edge of the foil material, and the ceramic slurry can be prevented from being coated on the edge of the thick edge of the ceramic tank 133, and the ceramic slurry can be effectively coated on the edge of the thick edge of the foil, and the ceramic material can be prevented from being formed, when the thick edge of the ceramic slurry is effectively coated edge, and the edge is formed, and the edge of the ceramic material can be coated on the edge when the edge is thick edge is required to be coated.
Referring to fig. 7, in one embodiment, a coating die 1 includes an upper die 20, a lower die 30, and a coating pad 10 according to any one of the above, wherein the coating pad 10 is disposed between the upper die 20 and the lower die 30.
The upper die head 20 and the lower die head 30 clamp and fix the coating gasket 10, wherein one of the upper die head 20 and the lower die head 30 is provided with a cavity for flowing battery slurry, and the cavity is communicated with the slurry tank; further, a cavity for ceramic slurry circulation is formed in one of the upper die 20 and the lower die 30, and the cavity is communicated with the guide section 131, so that battery slurry and ceramic slurry can be simultaneously coated.
Referring to fig. 1, in an embodiment, the main body gasket 100 is further provided with a plurality of fixing holes 140, and the fixing holes 140 are used for allowing fastening bolts to pass through for fixing, specifically, when the coating gasket 10 is installed in the coating die head, the fastening bolts pass through the upper die head 20, the coating gasket 10 and the lower die head 30 in sequence, so that the three can be reliably fixed.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (6)
1. A coated gasket comprising:
the main body gasket comprises a base body and at least two extending blocks, wherein the two extending blocks are arranged on the same side edge of the base body, a space is arranged between the two extending blocks, and the side wall, close to the extending blocks, of the base body and the side wall of the two extending blocks jointly enclose a slurry groove;
in any one of the extending blocks, a stop block is detachably arranged on the side wall of the extending block, which is close to the slurry tank, and extends into the slurry tank;
the stop comprises at least two laminations, each of the laminations being stacked upon the other to form the stop;
in any one of the extending blocks, an inclined block is further arranged on the side wall, close to the slurry tank, of the extending block, the inclined block is arranged adjacent to the stop block, the inclined block is positioned on one side, close to the base body, of the stop block, and an inclined surface is arranged on one side, close to the base body, of the inclined block;
an auxiliary material channel is formed in the main body gasket, and an opening of the auxiliary material channel is positioned on the side edge, far away from the base body, of the extension block body;
the auxiliary material channel comprises a material guide section, a first auxiliary material groove, a second auxiliary material groove and a discharging section which are sequentially connected, and the opening is positioned at one end of the discharging section away from the second auxiliary material groove;
the first auxiliary material groove is located on one side face of the main body gasket, the second auxiliary material groove is located on the other side face of the main body gasket, and the first auxiliary material groove is communicated with the second auxiliary material groove.
2. The coated gasket of claim 1, wherein the extension block is provided with a clamping groove, and the stop block is provided with a clamping boss, and the clamping boss is accommodated in the clamping groove in an adaptive manner.
3. The coated gasket of claim 2, wherein two clamping grooves are formed, two clamping bosses are arranged, and the two clamping bosses are accommodated in the two clamping grooves in a one-to-one correspondence.
4. A coated gasket according to claim 2 or 3, wherein the clamping groove is an L-shaped groove structure.
5. The coated gasket of claim 1 wherein the width of each of said laminations decreases from bottom to top in the stacking direction.
6. A coating die comprising an upper die, a lower die, and a coating gasket according to any one of claims 1 to 5 disposed between the upper die and the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327430.0A CN114192346B (en) | 2021-11-10 | 2021-11-10 | Coating gasket and coating die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327430.0A CN114192346B (en) | 2021-11-10 | 2021-11-10 | Coating gasket and coating die head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114192346A CN114192346A (en) | 2022-03-18 |
| CN114192346B true CN114192346B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111327430.0A Active CN114192346B (en) | 2021-11-10 | 2021-11-10 | Coating gasket and coating die head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115041368B (en) * | 2022-08-16 | 2023-04-11 | 江苏时代新能源科技有限公司 | Coating device |
| CN117784999B (en) * | 2024-02-23 | 2024-06-25 | 宁德时代新能源科技股份有限公司 | Coating method and system, computer device and storage medium |
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| CN214600087U (en) * | 2020-12-15 | 2021-11-05 | 欣旺达电动汽车电池有限公司 | Coating gasket, coating die head and coating device |
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| CN114192346A (en) | 2022-03-18 |
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