CN220716476U - Extrusion coating composite gasket - Google Patents
Extrusion coating composite gasket Download PDFInfo
- Publication number
- CN220716476U CN220716476U CN202322247738.5U CN202322247738U CN220716476U CN 220716476 U CN220716476 U CN 220716476U CN 202322247738 U CN202322247738 U CN 202322247738U CN 220716476 U CN220716476 U CN 220716476U
- Authority
- CN
- China
- Prior art keywords
- gasket
- parts
- mountain
- connecting edge
- hole
- 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.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 238000007765 extrusion coating Methods 0.000 title abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to the technical field of extrusion coating, in particular to an extrusion coating composite gasket which comprises a mountain-shaped gasket and an auxiliary gasket, wherein the mountain-shaped gasket and the auxiliary gasket are fixedly connected and tightly attached to each other, a through hole is formed in the mountain-shaped gasket, a bulge matched with the through hole is arranged on the auxiliary gasket, and the auxiliary gasket comprises a second connecting edge, two second side edges, a second partition part and a second opening edge which are integrally formed; the second connecting edge, the two second side edges and the second opening edge form a rectangular frame, the second separation part is vertically arranged in the middle of the second connecting edge and is connected with the second opening edge, so that the problems that the thickness of part of the mountain-shaped gasket is small, the strength is low, the installation is difficult, the middle separation part is suspended, the dispensing discharge is unstable, the material mixing is easy to occur and the like are solved.
Description
Technical Field
The utility model relates to the technical field of extrusion coating, in particular to an extrusion coating composite gasket.
Background
The extrusion coating technology is an advanced coating technology, can obtain a coating with higher precision, and currently, the lithium ion power battery industry commonly adopts the extrusion coating technology to manufacture a battery pole piece; the slurry with certain flow enters the die cavity in the die head from the feeding port of the extrusion head, stable pressure is formed, and finally the slurry is sprayed out from the slit outlet of the die head and coated on the foil. The extrusion die head is a key component for coating the lithium battery, the quality and uniformity of a coated pole piece are directly determined, the coating die head structure mainly comprises an upper die, a lower die and a gasket, and the gasket is arranged between the upper die and the lower die through a mounting hole. Meanwhile, a dispensing runner is further formed on the gasket, the dispensing runner is a channel through which ceramic material flows in the die cavity, and the dispensing process is a relatively mature process in the industry at present, and is mainly to coat a ceramic layer on the most edge of an action coating (a coating formed by slurry) of the lithium ion battery, so that the safety performance of the lithium ion battery is improved.
In the extrusion coating process, the mountain-shaped gasket is used for extruding coating slurry and extruding coating ceramic protective layers to achieve the aim of synchronously coating protective layers in the coating process, gaskets with different thicknesses need to be replaced in the production switching process of different models, but the mountain-shaped gasket with smaller thickness (the thickness is less than 0.6 mm) is small in thickness and low in strength when in use, the installation is difficult, a dispensing runner is arranged on a middle separation part, and the problems of unstable dispensing discharge, material mixing and the like are very easy to occur under the condition that the separation part is suspended.
Disclosure of Invention
The utility model provides an extrusion coating composite gasket, which solves the problems that the existing extrusion coating process is difficult to install due to small thickness and low strength of part of the mountain-shaped gasket, and the middle separation part is suspended, so that unstable dispensing and discharging, material mixing and the like are easy to occur.
The utility model relates to an extrusion coating composite gasket which adopts the following technical scheme:
comprises a mountain-shaped gasket and an auxiliary gasket which are fixedly connected with each other and are tightly attached to each other; the mountain-shaped gasket is provided with a through hole, and the auxiliary gasket is provided with a bulge matched with the through hole; the mountain-shaped gasket comprises a first connecting edge, a first side edge and a first separation part, wherein the first side edge is respectively and vertically arranged with two ends of the first connecting edge, the first separation part is vertically arranged in the middle of the first connecting edge, a first extension part is vertically arranged at the end part of the first side edge far away from the first connecting edge, and the first extension part extends to the first separation part; the top ends of the two first extending parts are flush with the top ends of the first separating parts, the space between the two first extending parts and the first separating parts forms two first openings, and the space between the two first side edges and the first separating parts forms two first inner cavities; the first connecting edge, the first side edge, the first separation part and the first extension part are integrally formed; the two first extension parts are provided with first adhesive dispensing flow passages on two sides of the end face, close to the first separation part, of the outer end of the first separation part;
the auxiliary gasket comprises a second connecting edge, second side edges which are respectively and vertically arranged at two ends of the second connecting edge, and second partition parts which are vertically arranged in the middle of the second connecting edge, wherein the two second side edges are flush with the top ends of the second partition parts, and two second inner cavities are formed in the space between the two second side edges and the second partition parts; the auxiliary gasket further comprises a second opening edge, a second connecting edge, two second side edges and a second opening edge form a rectangular frame, and the second connecting edge, the second side edges, the second partition parts and the second opening edge are integrally formed; the second connecting edge, the second side edge, the second partition part and the second inner cavity are respectively the same as the first connecting edge, the first side edge, the first partition part and the second inner cavity in shape and size; the width of the second opening edge is equal to that of the first extension part, and the width direction of the first extension part is perpendicular to the extension direction of the first extension part.
Preferably, the thickness of the protrusions is smaller than the depth of the through holes.
Preferably, the through hole is not in communication with the first dispensing flow passage.
Preferably, a plurality of first mounting holes are formed in the mountain-shaped gasket, and second mounting holes corresponding to the first mounting holes are formed in the auxiliary gasket.
Preferably, the through hole is a U-shaped through hole, the through hole surrounds the outer contour of the first inner cavity, the bulge is a U-shaped bulge, and the bulge surrounds the outer contour of the second inner cavity.
Preferably, the side surface of the mountain-shaped gasket, which is close to the auxiliary gasket, is provided with a first inner bonding area, the side surface of the auxiliary gasket, which is close to the mountain-shaped gasket, is provided with a second inner bonding area, the first inner bonding area is positioned in the area between the through hole and the first inner cavity, the second inner bonding area is positioned in the area between the bulge and the second inner cavity, and the first inner bonding area and the second inner bonding area are adhered by using sealant.
Compared with the prior art, the utility model has the beneficial effects that:
1. the auxiliary gasket is arranged at the bottom of the mountain-shaped gasket, so that the thickness of the mountain-shaped gasket is increased, the strength of the mountain-shaped gasket is enhanced, and the installation difficulty of the mountain-shaped gasket is reduced; the second connecting edge, the two second side edges and the second opening edge of the auxiliary gasket form a rectangular frame, so that the size of a discharge hole (namely the first opening) is unchanged and normal discharge is not influenced when the novel composite gasket is compared with the original mountain-shaped gasket.
2. The second connecting edge, the two second side edges and the second opening edge of the auxiliary gasket form a rectangular frame, and the second connecting edge, the second side edges, the second partition parts and the second opening edge are integrally formed, so that the originally suspended first partition parts of the mountain-shaped gasket positioned on the second connecting edge are supported, and the problems of unstable ceramic material discharging and ceramic material mixing in the dispensing process are avoided.
3. The mountain-shaped gasket and the auxiliary gasket are matched through the through holes and the protrusions, so that the mountain-shaped gasket and the auxiliary gasket are prevented from generating relative displacement.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of a mountain shaped shim of the present utility model;
FIG. 2 is a top view of the auxiliary gasket of the present utility model;
description of the reference numerals
1. A mountain-shaped gasket; 2. an auxiliary gasket; 11. a through hole; 12. a first connecting edge; 13. a first side; 14. a first partition; 15. a first extension; 16. a first dispensing runner; 17. a first inboard bond area; 18. a first mounting hole; 21. a protrusion; 22. a second connecting edge; 23. a second side; 24. a second partition; 25. a second opening edge; 26. a second inboard bond area; 27. and a second mounting hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model discloses an embodiment of an extrusion coating composite gasket, as shown in fig. 1 and 2, 1, an extrusion coating composite gasket, which is characterized in that: comprises a mountain-shaped gasket 1 and an auxiliary gasket 2 which are fixedly connected with each other and are tightly attached to each other; the mountain-shaped gasket 1 is provided with a through hole 11, and the auxiliary gasket 2 is provided with a bulge 21 matched with the through hole 11;
the mountain-shaped gasket 1 comprises a first connecting edge 12, a first side edge 13 and a first separation part 14, wherein the first side edge 13 is respectively and vertically arranged at two ends of the first connecting edge 12, the first separation part 14 is vertically arranged in the middle of the first connecting edge 12, a first extension part 15 is vertically arranged at the end part of the first side edge 13 far away from the first connecting edge 12, and the first extension part 15 extends to the first separation part 14;
the top ends of the two first extending parts 15 are flush with the top ends of the first separating parts 14, the space between the two first extending parts 15 and the first separating parts 14 forms two first openings, and the space between the two first side edges 13 and the first separating parts 14 forms two first inner cavities; the first connecting edge 12, the first side edge 13, the first partition 14 and the first extension 15 are integrally formed; the two first extension parts 15 are provided with first adhesive dispensing flow passages 16 near the end surfaces of the first separation parts 14 and at two sides of the outer ends of the first separation parts 14;
the auxiliary gasket 2 comprises a second connecting edge 22, second side edges 23 which are respectively and vertically arranged at two ends of the second connecting edge 22, and second partition parts 24 which are vertically arranged in the middle of the second connecting edge 22, wherein the two second side edges 23 are flush with the top ends of the second partition parts 24, and two second inner cavities are formed in the space between the two second side edges 23 and the second partition parts 24; the auxiliary gasket 2 further comprises a second opening edge 25, wherein the second connecting edge 22, the two second side edges 23 and the second opening edge 25 form a rectangular frame, and the second connecting edge 22, the second side edges 23, the second separation part 24 and the second opening edge 25 are integrally formed; the second connecting edge 22, the second side edge 23, the second partition portion 24 and the second inner cavity are respectively the same as the first connecting edge 12, the first side edge 13, the first partition portion 14 and the second inner cavity in shape and size; the second opening edge 25 has the same width as the first extension portion 15, and the width direction of the first extension portion 15 is perpendicular to the extending direction thereof.
In this embodiment, the thickness of the protrusion 21 is smaller than the depth of the through hole 11.
In this embodiment, the through hole 11 is a U-shaped through hole, the through hole 11 is disposed around the outer contour of the first inner cavity, the protrusion 21 is a U-shaped protrusion, and the protrusion 21 is disposed around the outer contour of the second inner cavity.
In this embodiment, the side surface of the mountain-shaped gasket 1, which is close to the auxiliary gasket 2, is provided with a first inner bonding area 17, the side surface of the auxiliary gasket 2, which is close to the mountain-shaped gasket 1, is provided with a second inner bonding area 26, the first inner bonding area 17 is located in the area between the through hole 11 and the first inner cavity, the second inner bonding area 26 is located in the area between the protrusion 21 and the second inner cavity, and the first inner bonding area 17 and the second inner bonding area 26 are adhered by using sealant.
In this embodiment, further, the auxiliary gasket 2 is clamped at the bottom of the chevron-shaped gasket 1 through the cooperation of the through hole 11 and the protrusion 21.
In this embodiment, further, the thickness of the mountain-shaped spacer 1 is less than 0.6mm, and the thickness of the auxiliary spacer 2 is 0.8mm to 1.5mm.
The assembly process of the extrusion coating composite gasket comprises the following steps: firstly, the second inner side bonding area 26 of the auxiliary gasket 2 is smeared with sealant, then the U-shaped bulges on the auxiliary gasket 2 are aligned and clamped into the U-shaped through holes of the mountain-shaped gasket 1, and finally, pressure is uniformly applied to ensure that the two parts are tightly adhered.
The utility model is particularly used as follows: the assembled composite gasket is horizontally placed between an upper die and a lower die of the coating die head structure, the mountain-shaped gasket 1 is guaranteed to be close to the upper die, and the coating dispensing process can be normally performed after the first mounting holes 18 and the second mounting holes 27 are mounted.
The auxiliary gasket 2 is arranged at the bottom of the mountain-shaped gasket 1, so that the thickness of the mountain-shaped gasket 1 is increased, the strength of the mountain-shaped gasket 1 is enhanced, and the installation difficulty of the mountain-shaped gasket 1 is reduced; the second connecting edge 22, the two second side edges 23 and the second opening edge 25 of the auxiliary gasket 2 form a rectangular frame, so that the size of the discharge port, namely the first opening, is unchanged compared with that of the original mountain-shaped gasket 1, and normal discharge is not influenced. The second connecting edge 22, the two second side edges and the 23 second opening edge 25 of the auxiliary gasket 2 form a rectangular frame, and the second connecting edge 22, the second side edge 23, the second separation part 24 and the second opening edge 25 are integrally formed, so that the original suspended first separation part 14 of the mountain-shaped gasket 1 positioned on the auxiliary gasket is supported, and the problems that ceramic materials are unstable in discharging and mixed with slurry in the dispensing process are avoided. The mountain-shaped gasket 1 and the auxiliary gasket 2 are matched with the bulge 21 by adopting the through holes 11, so that the mountain-shaped gasket 1 and the auxiliary gasket 2 are prevented from generating relative displacement.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. An extrusion coated composite gasket, characterized in that: comprises a mountain-shaped gasket (1) and an auxiliary gasket (2) which are fixedly connected with each other and are tightly attached to each other; the mountain-shaped gasket (1) is provided with a through hole (11), and the auxiliary gasket (2) is provided with a bulge (21) matched with the through hole (11);
the mountain-shaped gasket (1) comprises a first connecting edge (12), first side edges (13) which are respectively and vertically arranged at two ends of the first connecting edge (12), and first separation parts (14) which are vertically arranged in the middle of the first connecting edge (12), wherein first extension parts (15) are vertically arranged at the end parts, far away from the first connecting edge (12), of the first side edges (13), and the first extension parts (15) extend to the first separation parts (14); the top ends of the two first extending parts (15) are flush with the top ends of the first separating parts (14), the space between the two first extending parts (15) and the first separating parts (14) forms two first openings, and the space between the two first side edges (13) and the first separating parts (14) forms two first inner cavities; the first connecting edge (12), the first side edge (13), the first separation part (14) and the first extension part (15) are integrally formed; the two first extension parts (15) are close to the end face of the first separation part (14), and the two sides of the outer end of the first separation part (14) are provided with first adhesive dispensing flow passages (16);
the auxiliary gasket (2) comprises a second connecting edge (22), second side edges (23) which are respectively and vertically arranged at two ends of the second connecting edge (22), and second partition parts (24) which are vertically arranged in the middle of the second connecting edge (22), wherein the two second side edges (23) are flush with the top ends of the second partition parts (24), and two second inner cavities are formed in the space between the two second side edges (23) and the second partition parts (24); the auxiliary gasket (2) further comprises a second opening edge (25), the second connecting edge (22), two second side edges (23) and the second opening edge (25) form a rectangular frame, and the second connecting edge (22), the second side edges (23), the second partition parts (24) and the second opening edge (25) are integrally formed;
the second connecting side (22), the second side (23), the second partition (24) and the second inner cavity are respectively the same as the first connecting side (12), the first side (13), the first partition (14) and the second inner cavity in shape and size; the width of the second opening edge (25) is equal to that of the first extension part (15), and the width direction of the first extension part (15) is perpendicular to the extension direction.
2. An extrusion coated composite gasket according to claim 1 wherein: the thickness of the protrusion (21) is smaller than the depth of the through hole (11).
3. An extrusion coated composite gasket according to claim 1 wherein: the through hole (11) is not communicated with the first dispensing runner (16).
4. An extrusion coated composite gasket according to claim 1 wherein: a plurality of first mounting holes (18) are formed in the mountain-shaped gasket (1), and second mounting holes (27) corresponding to the first mounting holes (18) are formed in the auxiliary gasket (2).
5. An extrusion coated composite gasket according to claim 1 wherein: the through hole (11) is a U-shaped through hole, the through hole (11) is arranged around the outer contour of the first inner cavity, the bulge (21) is a U-shaped bulge, and the bulge (21) is arranged around the outer contour of the second inner cavity.
6. An extrusion coated composite gasket according to claim 1 wherein: the side that is close to supplementary gasket (2) of mountain shape gasket (1) has first inboard bonding region (17), the side that is close to mountain shape gasket (1) of supplementary gasket (2) has second inboard bonding region (26), first inboard bonding region (17) are located the region between through-hole (11) and the first inner chamber, second inboard bonding region (26) are located the region between protruding (21) and the second inner chamber, first inboard bonding region (17) with sealed glue is used to bond in second inboard bonding region (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247738.5U CN220716476U (en) | 2023-08-21 | 2023-08-21 | Extrusion coating composite gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247738.5U CN220716476U (en) | 2023-08-21 | 2023-08-21 | Extrusion coating composite gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220716476U true CN220716476U (en) | 2024-04-05 |
Family
ID=90489570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322247738.5U Active CN220716476U (en) | 2023-08-21 | 2023-08-21 | Extrusion coating composite gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220716476U (en) |
-
2023
- 2023-08-21 CN CN202322247738.5U patent/CN220716476U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2278195B1 (en) | Method of manufacturing seal part | |
| EP4152489A1 (en) | Button cell and manufacturing method therefor, and electronic device | |
| CN220716476U (en) | Extrusion coating composite gasket | |
| CN113680605A (en) | Adjustable die head for gluing | |
| CN102148383A (en) | Hybrid seal application process | |
| CN113510044B (en) | Small-surface-density slit type coating gasket | |
| CN110112361B (en) | Production system capable of eliminating thick edges of lithium battery pole pieces | |
| CN102259082A (en) | Paste baffle assisting polar plate to coat paste | |
| CN212113924U (en) | Gasket and slit coater | |
| CN112871579A (en) | Double-layer coating die head and coating machine | |
| CN211538417U (en) | Extrusion coating gasket and extrusion coating machine | |
| CN217664306U (en) | Coating gasket and coating die head | |
| CN111214848A (en) | Ion chromatography inhibitor | |
| CN111477911B (en) | Fuel cell and fuel cell stack | |
| CN114733714A (en) | Double-layer adhesive dispensing gasket and coating die head | |
| CN114447357A (en) | Metal bipolar plate and metal bipolar plate sealing structure forming method | |
| CN211964803U (en) | Novel weight control double-layer extrusion head | |
| CN115041368B (en) | Coating device | |
| CN220919747U (en) | Gasket for die head of extrusion coating machine and extrusion coating machine | |
| CN220776276U (en) | Waterproof structure and beauty instrument | |
| CN208375952U (en) | A kind of molding die for bridge cut-off aluminium door and window center sealing joint strip | |
| CN114100956A (en) | Application of pressure sensor in slit coating system | |
| CN217514603U (en) | Integrated pre-opening frame | |
| CN220550245U (en) | Electrolytic zinc cathode plate structure | |
| CN215542289U (en) | Extrusion die head and pole piece coating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |