CN211538390U - Extrusion coating gasket and extrusion coating device - Google Patents
Extrusion coating gasket and extrusion coating device Download PDFInfo
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- CN211538390U CN211538390U CN201922062283.3U CN201922062283U CN211538390U CN 211538390 U CN211538390 U CN 211538390U CN 201922062283 U CN201922062283 U CN 201922062283U CN 211538390 U CN211538390 U CN 211538390U
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- 238000007765 extrusion coating Methods 0.000 title claims abstract description 34
- 230000008859 change Effects 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the field of lithium battery production equipment, and discloses an extrusion coating gasket and an extrusion coating device, wherein the extrusion coating gasket comprises a U-shaped gasket main body with an opening at one end, any one of two opposite inner side walls of the gasket main body is provided with a master slice which is convexly arranged towards the other inner side wall, and the master slice is arranged at the opening end part of the gasket main body; the film forming device also comprises sub-sheets, wherein the free end of each master sheet is connected with one sub-sheet, and a film outlet is formed between the two sub-sheets; each sub-sheet can adjust the relative position along the width direction of the film outlet relative to the corresponding mother sheet so as to change the width of the film outlet. The utility model discloses all be connected with a subplate at the free end of every master slice, every subplate can be adjusted for the relative position of the width direction of corresponding master slice along the film outlet in order to change the width of film outlet to satisfy the demand of carrying out the extrusion coating to the pole piece of different width, need not the whole gasket of changing, improved production efficiency, reduced manufacturing cost.
Description
Technical Field
The utility model relates to a lithium cell production facility field especially relates to an extrusion coating gasket and extrusion coating device.
Background
The extrusion coating process is to extrude one or more layers of coating liquid from the gap of an extrusion nozzle to form a meniscus between the extrusion nozzle and a coated substrate, and transfer the coating liquid onto a running support to form a thin layer. In the production process of the lithium battery, the pole piece of the lithium battery needs to be extruded and coated.
Extrusion coating unit's gasket includes the gasket main part and locates the film outlet on the gasket main part, and current gasket is monolithic structure, when coating the pole piece of different width, need change the gasket so that the width of film outlet and the width adaptation of pole piece.
However, the method of replacing the gasket integrally has the following problems: (1) the extrusion coating process may be performed on gaskets with different widths, so that gaskets with different film opening widths and various sizes need to be prepared, and the production cost is increased; (2) and the time consumption is longer when the gasket is integrally replaced, and the production efficiency is reduced.
Therefore, there is a need for an extrusion coated gasket to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an extrusion coating gasket and extrusion coating device has solved the problem that needs the whole gasket of changing, has improved production efficiency, has reduced manufacturing cost.
To achieve the purpose, the utility model adopts the following technical proposal:
an extrusion coating gasket comprises a U-shaped gasket main body with an opening at one end, wherein a master piece protruding towards the other inner side wall is arranged on any one of the two opposite inner side walls of the gasket main body, and the master piece is arranged at the opening end part of the gasket main body; further comprising:
the free end of each master slice is connected with one sub slice, and a film outlet is formed between the two sub slices; and adjusting the relative position of each sub-sheet relative to the corresponding mother sheet along the width direction of the film outlet to change the width of the film outlet.
As a preferable technical scheme of the extrusion coating gasket, each master slice is provided with at least two first grooves distributed along the width direction of the film outlet, and a first protrusion is formed between every two adjacent first grooves;
the sub-sheet is provided with at least two second grooves distributed along the width direction of the film outlet, and a second bulge is formed between every two adjacent second grooves;
the first protrusion is in inserting fit with the second groove, and the second protrusion is in inserting fit with the first groove.
As a preferable technical solution of the extrusion coating gasket, each of the mother sheets is provided with a first slot having an opening pointing to another mother sheet, the first slot has a first inner wall and a second inner wall which are arranged oppositely from top to bottom, and the first inner wall and the second inner wall are provided with at least two first grooves distributed along the width direction of the film outlet;
the top wall of the sub-sheet is provided with second bulges which are in one-to-one correspondence with the first grooves on the first inner wall, and the bottom wall of the sub-sheet is provided with second bulges which are in one-to-one correspondence with the first grooves on the second inner wall.
As a preferred technical solution of the extrusion coating gasket, each of the sub-sheets is provided with a first slot having an opening pointing to the corresponding master sheet, the first slot is provided with a first inner wall and a second inner wall which are oppositely arranged up and down, and the first inner wall and the second inner wall are provided with at least two first grooves distributed along the width direction of the film outlet;
the top wall of the master slice is provided with second bulges which are in one-to-one correspondence with the first grooves on the first inner wall, and the bottom wall of the master slice is provided with second bulges which are in one-to-one correspondence with the first grooves on the second inner wall.
As a preferable technical solution of the extrusion coating gasket, a chamfer is formed between a side surface of each sub-sheet facing the bottom wall of the gasket main body and an end surface of the sub-sheet forming the film outlet.
As a preferred technical solution of the extrusion coating gasket, two sub-sheets connected to two of the mother sheets form a sub-sheet set, at least two sub-sheet sets are provided, and the mother sheet can be selectively paired with any one of the sub-sheet sets, so that the two mother sheets and the two sub-sheets in the sub-sheet set are correspondingly connected one by one;
the chamfer sizes on the two sub-sheets in the same sub-sheet group are the same, and the chamfer sizes on the sub-sheets in at least two sub-sheet groups are different.
As a preferable technical solution of the extrusion coating gasket, the width adjustment ranges of the film outlets formed by one-to-one corresponding connection of the sub-sheets and the mother sheet in at least two sub-sheet groups are different.
As a preferable technical solution of the extrusion coating gasket, the thickness of the sub-sheet is equal to the thickness of the mother sheet and equal to the thickness of the gasket main body, and the top surface of the sub-sheet is flush with the top surface of the gasket main body.
The utility model also provides an extrusion coating device, including foretell extrusion coating gasket.
The utility model has the advantages that: the utility model provides an extrusion coating gasket all is connected with a sub-piece at the free end of every master slice, along the width of a membrane mouth in order to change for the relative position of a membrane mouth width direction through adjusting every sub-piece for the master slice that corresponds.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural view of an extrusion coated gasket according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
fig. 3 is a schematic structural view of an extrusion coated gasket according to an embodiment of the present invention.
In the figure:
1. a gasket body; 11. a master slice; 111. a first protrusion; 2. sub-pieces; 21. a second protrusion; 3. and a film outlet.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
Example one
As shown in fig. 1 and fig. 2, the present embodiment provides an extrusion coating gasket, which includes a U-shaped gasket main body 1 with an opening at one end, wherein a mother sheet 11 protruding toward the other inner side wall is disposed on any inner side wall of two opposite inner side walls of the gasket main body 1, and the mother sheet 11 is disposed at an opening end portion of the gasket main body 1.
The extrusion coating gasket further comprises sub-sheets 2, the free end of each mother sheet 11 is connected with one sub-sheet 2, and a film outlet 3 is formed between the two sub-sheets 2; the relative position of each sub-sheet 2 with respect to the corresponding master sheet 11 in the width direction of the film outlet 3 is adjusted to change the width of the film outlet 3.
Specifically, each master slice 11 is provided with at least two first grooves distributed along the width direction of the film outlet 3, and a first protrusion 111 is formed between every two adjacent first grooves; the sub-sheet 2 is provided with at least two second grooves distributed along the width direction of the film outlet 3, and a second bulge 21 is formed between every two adjacent second grooves; the first protrusion 111 is in plug-in fit with the second groove, and the second protrusion 21 is in plug-in fit with the first groove.
In this embodiment, each master slice 11 is provided with a first slot with an opening pointing to another master slice 11, the first slot is provided with a first inner wall and a second inner wall which are oppositely arranged up and down, and the first inner wall and the second inner wall are provided with at least two first grooves distributed along the width direction of the film outlet 3;
the top wall of the sub-sheet 2 is provided with second bulges 21 which are in one-to-one correspondence with the first grooves on the first inner wall, and the bottom wall of the sub-sheet 2 is provided with second bulges 21 which are in one-to-one correspondence with the first grooves on the second inner wall. Through the relative position of the first arch 111 and the second recess of adjustment mutual joint and the protruding 21 of second and the first recess of mutual joint to change the relative position between master slice 11 and the son piece 2 that corresponds, thereby change the width of the play membrane mouth 3 that forms between two son pieces 2, in order to satisfy the demand of carrying out extrusion coating to the pole piece of different width.
In this embodiment, the distance between the first groove and the first protrusion 111 in the width direction of the film outlet 3 is equal, the distance between the second groove and the second protrusion 21 in the width direction of the film outlet 3 is equal, and the distance between the first groove and the second groove in the width direction of the film outlet is equal. Through the setting, the width of the film outlet 3 is quantized, and the relative position of each sub-film 2 relative to the corresponding mother film 11 along the width direction of the film outlet 3 can be adjusted according to actual requirements.
Further, a chamfer is formed between the side surface of each sub-sheet 2 facing the bottom wall of the gasket main body 1 and the end surface of the sub-sheet 2 forming the film outlet 3. The chamfer may be a bevel or a fillet, and the chamfer is taken as a fillet in the embodiment.
In this embodiment, the two sub-sheets 2 connected to the two mother sheets 11 form at least two sub-sheet groups, and the mother sheet 11 can be selectively paired with any one of the sub-sheet groups, so that the two mother sheets 11 are connected with the two sub-sheets 2 in the sub-sheet group in a one-to-one correspondence manner; the chamfer sizes on the two sub-pieces 2 in the same sub-piece group are the same, and the chamfer sizes on the sub-pieces 2 in at least two sub-piece groups are different.
Furthermore, the width adjusting ranges of the film outlets 3 formed by connecting the sub-sheets 2 in at least two sub-sheet groups and the mother sheet 11 in a one-to-one correspondence manner are different. By adopting the arrangement, the adjusting range of the width of the film outlet 3 can be further expanded so as to meet the actual use requirement.
In this embodiment, the thickness of the sub-sheet 2 is equal to the thickness of the master sheet 11 and equal to the thickness of the gasket main body 1, and the top surface of the sub-sheet 2 is flush with the top surface of the gasket main body 1.
The embodiment also provides an extrusion coating device which comprises the extrusion coating gasket.
Example two
The difference between the present embodiment and the first embodiment is that, as shown in fig. 3, each sub-sheet 2 has an opening pointing to a first open groove of the corresponding master sheet 11, the first open groove has a first inner wall and a second inner wall which are arranged oppositely up and down, and the first inner wall and the second inner wall are both provided with at least two first grooves distributed along the width direction of the film outlet 3;
the top wall of the master slice 11 is provided with second bulges 21 which are in one-to-one correspondence with the first grooves on the first inner wall, and the bottom wall of the master slice 11 is provided with second bulges 21 which are in one-to-one correspondence with the first grooves on the second inner wall.
In other embodiments, the sub-sheet 2 can also be moved relative to the mother sheet 11 along the width direction of the film outlet 3 to change the width of the film outlet 3, but the first protrusion 111 and the second protrusion 21 are required to be capable of elastic deformation.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. An extrusion coating gasket comprises a U-shaped gasket main body (1) with an opening at one end, wherein a mother sheet (11) protruding towards the other inner side wall is arranged on any one of the two opposite inner side walls of the gasket main body (1), and the mother sheet (11) is arranged at the opening end part of the gasket main body (1); it is characterized by also comprising:
the free end of each master slice (11) is connected with one sub slice (2), and a film outlet (3) is formed between the two sub slices (2); each sub-sheet (2) can adjust the relative position of the sub-sheet relative to the corresponding mother sheet (11) along the width direction of the film outlet (3) so as to change the width of the film outlet (3).
2. The extrusion-coated gasket as recited in claim 1, wherein each of the mother sheets (11) is provided with at least two first grooves distributed along the width direction of the film outlet (3), and a first protrusion (111) is formed between two adjacent first grooves;
at least two second grooves distributed along the width direction of the film outlet (3) are formed in the sub-sheet (2), and a second protrusion (21) is formed between every two adjacent second grooves;
the first protrusion (111) is in plug fit with the second groove, and the second protrusion (21) is in plug fit with the first groove.
3. The extrusion-coated gasket as recited in claim 2, wherein each of the mother sheets (11) is provided with a first slot having an opening pointing to the other mother sheet (11), the first slot has a first inner wall and a second inner wall oppositely arranged up and down, and the first inner wall and the second inner wall are provided with at least two first grooves distributed along the width direction of the film outlet (3);
the top wall of the sub-sheet (2) is provided with second bulges (21) which are in one-to-one correspondence with the first grooves on the first inner wall, and the bottom wall of the sub-sheet (2) is provided with second bulges (21) which are in one-to-one correspondence with the first grooves on the second inner wall.
4. The extrusion-coated gasket as recited in claim 2, wherein each of the sub-sheets (2) is provided with a first slot having an opening pointing to the corresponding mother sheet (11), the first slot has a first inner wall and a second inner wall oppositely arranged up and down, and the first inner wall and the second inner wall are provided with at least two first grooves distributed along the width direction of the film outlet (3);
the top wall of the master slice (11) is provided with second bulges (21) corresponding to the first grooves on the first inner wall one by one, and the bottom wall of the master slice (11) is provided with second bulges (21) corresponding to the first grooves on the second inner wall one by one.
5. The extrusion-coated gasket as recited in claim 3 or 4, wherein the first grooves and the first protrusions (111) are equally spaced in the width direction of the film outlet (3), the second grooves and the second protrusions (21) are equally spaced in the width direction of the film outlet (3), and the first grooves and the second grooves are equally spaced in the width direction of the film outlet (3).
6. The extrusion coated gasket as set forth in claim 1, wherein a chamfer is formed between the side of each sub-sheet (2) facing the bottom wall of the gasket body (1) and the end face of the sub-sheet (2) forming the film outlet (3).
7. Extrusion coated gasket according to claim 6, wherein two of said sub-sheets (2) connected to two of said mother sheets (11) form a sub-sheet group, said sub-sheet group being provided with at least two, said mother sheet (11) being selectively mateable with any one of said sub-sheet groups to connect two of said mother sheets (11) with two of said sub-sheets (2) in a one-to-one correspondence;
the chamfer sizes on the two sub-sheets (2) in the same sub-sheet group are the same, and the chamfer sizes on the sub-sheets (2) in at least two sub-sheet groups are different.
8. The extrusion-coated gasket as recited in claim 7, wherein the width adjustment ranges of the film outlets (3) formed by connecting the sub-sheets (2) of at least two sub-sheet groups with the mother sheet (11) in a one-to-one correspondence manner are different.
9. Extrusion coated gasket according to claim 1, wherein the thickness of the sub-sheet (2) is equal to the thickness of the master sheet (11) and equal to the thickness of the gasket body (1), the top surface of the sub-sheet (2) being flush with the top surface of the gasket body (1).
10. An extrusion coating apparatus comprising the extrusion coating gasket of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062283.3U CN211538390U (en) | 2019-11-26 | 2019-11-26 | Extrusion coating gasket and extrusion coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062283.3U CN211538390U (en) | 2019-11-26 | 2019-11-26 | Extrusion coating gasket and extrusion coating device |
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| Publication Number | Publication Date |
|---|---|
| CN211538390U true CN211538390U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922062283.3U Active CN211538390U (en) | 2019-11-26 | 2019-11-26 | Extrusion coating gasket and extrusion coating device |
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|---|---|
| CN (1) | CN211538390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974151A (en) * | 2021-03-17 | 2021-06-18 | 横店集团东磁股份有限公司 | Coating gasket and coating device |
| CN113042326A (en) * | 2021-02-03 | 2021-06-29 | 万向一二三股份公司 | Coating die head gasket |
| CN113600411A (en) * | 2021-09-03 | 2021-11-05 | 苏州希盟科技股份有限公司 | Coating equipment |
-
2019
- 2019-11-26 CN CN201922062283.3U patent/CN211538390U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042326A (en) * | 2021-02-03 | 2021-06-29 | 万向一二三股份公司 | Coating die head gasket |
| CN112974151A (en) * | 2021-03-17 | 2021-06-18 | 横店集团东磁股份有限公司 | Coating gasket and coating device |
| CN113600411A (en) * | 2021-09-03 | 2021-11-05 | 苏州希盟科技股份有限公司 | Coating equipment |
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Effective date of registration: 20220125 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 523000 Dalang Town, Dongguan, Guangdong province Xiangshan Pine Hill Village Xiangshan Industrial Park Jiayuan Road No. 9 Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |