CN208527143U - A kind of extrusion coating machine die head gasket and die head - Google Patents
A kind of extrusion coating machine die head gasket and die head Download PDFInfo
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- CN208527143U CN208527143U CN201820807519.4U CN201820807519U CN208527143U CN 208527143 U CN208527143 U CN 208527143U CN 201820807519 U CN201820807519 U CN 201820807519U CN 208527143 U CN208527143 U CN 208527143U
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Abstract
The utility model discloses a kind of extrusion coating machine die head gaskets, including edge bearing main body, flow-stopping plate, flow distribution plate, the edge bearing main body includes a long side and two short sides, described flow-stopping plate one end is vertical with described short side one end to be connect, the flow-stopping plate other end is equipped with curved portion, chamfering, the flow distribution plate is set between two short sides, and it is connect with the long side, the flow distribution plate two sides are equipped with curved portion, chamfering, the curved portion is respectively positioned on close to this side of the long side, forms diffluence pass between the flow-stopping plate and the flow distribution plate.The utility model has the advantages that reducing the flow rate of slurry of flow-stopping plate and flow distribution plate edge by the cooperation of curved portion and chamfering, keep flow rate of slurry uniform, significantly reduce coating medium area edge drum side phenomenon, it solves the problems, such as due to the unstable caused battery core Capacity uniformity of coating medium area thickness and safety, die head gasket is quick for installation, it prevents die head gasket from shifting, keeps the consistency of coated face density and coating medium area thickness.
Description
Technical field
The utility model relates to extrusion coating machine field more particularly to a kind of extrusion coating machine die head gaskets and die head.
Background technique
The all-round developing lithium ion battery new energy automobile of country at this stage, the quality of lithium ion battery is for new-energy automobile
Quality it is most important.In the production process of lithium ion battery, the coating of pole piece is essential process, pole coating
Quality directly affects battery capacity consistency and safety.
Pole coating has pressure chamber in extrusion coating machine die head usually using extrusion coater, when slurry is from pressure chamber
After centre enters extrusion coating machine, slurry is coated uniformly on substrate and is dried by certain pressure, is made into battery, because
For the feeding manner and discharge method of extrusion coating machine die head, slurry feeds no-buffer, and discharge no-buffer, flows through baffle
The flow rate of slurry at edges of boards edge and flow distribution plate edge is especially fast, and slurry expects easily to produce at area edge about 3~5mm after drying in an oven
Raw drum side, in coating and roll-in, easily broken band, causes largely to scrap, and seriously affect the consistency and safety of battery capacity
Property.In addition, die head gasket is easy displacement during the installation process, die head gasket is somewhat tilted, and will lead to coated face density
It changes with coating medium area thickness, and the variation of coated face density and coating medium area thickness directly affects the good of coating quality
It is bad, to influence the quality of battery.
Utility model content
Purpose of utility model: in view of the above problems, the object of the present invention is to provide a kind of extrusion coating machine die head pads
Piece and die head make slurry keep uniform flow velocity by die head, and pole coating is made to keep thickness uniform, and material area edge is not likely to produce
Drum side, keeps the consistency of coated face density and coating medium area thickness.
Technical solution:
A kind of extrusion coating machine die head gasket, including edge bearing main body, flow-stopping plate, flow distribution plate, the edge bearing main body include one
Long side and two short sides, described flow-stopping plate one end is vertical with described short side one end to be connect, and the flow-stopping plate other end is equipped with arc
Shape portion, chamfering, the flow distribution plate is set between two short sides, and is connect with the long side, and the flow distribution plate two sides are all provided with
There are curved portion, chamfering, the curved portion is respectively positioned on close to this side of the long side, shape between the flow-stopping plate and the flow distribution plate
At diffluence pass, effectively alleviate the flow rate of slurry for flowing through flow-stopping plate, flow distribution plate edge.
Specifically, the curved portion includes concave arc portion, outer convex curvilinear, the concave arc portion is disposed in proximity to institute
State this side of long side.When slurry flow to concave arc portion, flow velocity is substantially reduced, and slurry is along outer convex curvilinear fair current to chamfering
Place, keeps uniform flow velocity.
The length of the chamfering be 0.5~6mm, specifically, the chamfering be 3mm × 1mm, flow through the stream of slurry of chamfering
Speed reduces.
Preferably, for the ease of the positioning of die head gasket, which further includes card slot, and the card slot is opened
In the edge bearing main body.
The invention also discloses a kind of extrusion coating machine die heads, including die head gasket, upper die head, lower die head, pressure
Chamber, conveyance conduit, locating slot, the pressure chamber are opened in the lower die head, table on the conveyance conduit and the lower die head
Face connection, the locating slot are opened up along three side of lower die head, and the die head gasket is set in the locating slot, and are located at described
Between upper die head and the lower die head, the upper die head is fastened by bolts with the lower die head, in fastening upper die head and lower die
When head, locating slot can prevent die head gasket from shifting.
Preferably, which further includes positioning column, and the positioning column is set in the lower die head, positioning column
Corresponding with the card slot that die head gasket opens up, die head gasket is stuck on positioning column, accurate positioning.
The utility model has the advantages that compared with prior art, the utility model has the advantages that smart structural design, by curved portion and falls
The cooperation at angle reduces the flow rate of slurry of flow-stopping plate and flow distribution plate edge, keeps flow rate of slurry uniform, hence it is evident that reduces coating medium area edge
Drum side phenomenon solves the problems, such as to reduce due to the unstable caused battery core Capacity uniformity of coating medium area thickness and safety
Coating and nipping process band of discontinuance number reduce learies, and die head gasket is quick for installation, prevent die head gasket from shifting, and keep applying
The consistency of cloth surface density and coating medium area thickness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of die head gasket；
Fig. 2 is part A partial enlarged view in Fig. 1；
Fig. 3 is part B partial enlarged view in Fig. 1；
Fig. 4 is that extrusion coating machine die head is coated with status diagram；
Fig. 5 is upper die head structural schematic diagram；
Fig. 6 is lower die head structural schematic diagram；
Fig. 7 is pole coating schematic diagram；
Fig. 8 is the transverse gage comparison diagram of the pole piece prepared and the pole piece of prior art preparation in the present embodiment.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after having read the utility model, art technology
Personnel fall within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figure 1, a kind of extrusion coating machine die head gasket, including edge bearing main body, flow-stopping plate 1, flow distribution plate 2, card slot 8.
Edge bearing main body includes a long side 3 and two short sides 4, and two short sides 4 are perpendicularly fixed at 3 both ends of long side.1 one end of flow-stopping plate with it is short
The one end on side 4 vertically connects, and 1 other end of flow-stopping plate is equipped with curved portion, chamfering 5.Flow distribution plate 2 is set between two short sides 4, point
One end of flowing plate 2 and long side 3 are fixed, and quantity and the position of flow distribution plate 2 according to the demand of pole coating, can be arranged.Such as Fig. 2 institute
Show, the other end of flow distribution plate 2 is set there are two chamfering 5, and the size of chamfering 5 can be selected according to the flow velocity of required slurry, chamfering 5
Length range is 0.5~6mm, and the size of chamfering 5 selects 3mm × 1mm in the present embodiment.Curved portion is set to 2 two sides of flow distribution plate,
It is adjacent with chamfering 5.As shown in figure 3, curved portion includes concave arc portion 6 and outer convex curvilinear 7, concave arc portion 6, which is set to, to be leaned on
Nearly this side of long side 3.Diffluence pass is formed between flow-stopping plate 1 and flow distribution plate 2.Card slot 8 is opened in edge bearing main body, die head gasket
When 15 installation, card slot 8 is placed on positioning column 14, is accurately positioned, and prevents die head gasket 15 mobile.
As Figure 4-Figure 6, the invention also discloses a kind of extrusion coating machine die head, including above-mentioned die head gasket 15,
Upper die head 9, lower die head 10, pressure chamber 11, conveyance conduit 12, locating slot 13, positioning column 14.Pressure chamber 11 is opened in lower die head 10
In, pressure stabilizing is used in slurry conveying.Conveyance conduit 12 is connected to 10 upper surface of lower die head.Locating slot 13 along lower die head 10 three
While open up, die head gasket 15 with a thickness of 1mm, die head gasket 15 is set in locating slot 13, and is located at upper die head 9 and lower die head
Between 10, upper die head 9 is fastened by bolts with lower die head 10.Positioning column 14 is arranged three, is respectively arranged on three sides of lower die head 10
On.
The present embodiment is coated using positive ternary system slurry, and wherein slurry viscosity is 6000cp (25 DEG C), solid
Content is 69%.When slurry is coated with, back flow roll 16 drives substrate 17 to move, and extrusion coating machine is uniformly coated on anode and cathode slurry
On substrate.Slurry is coated on substrate 17 by die head, and dash area as shown in Figure 7 is dispensing area, is dried by baking oven, is made
It is made pole piece, pole piece carries out transverse gage test, and thickness test result is as shown in band circle lines in Fig. 8, band square block lines
To use existing die head gasket to be coated to obtain the transverse gage test result of pole piece, the edge thickness skiving of the present embodiment
Effect is significantly better than the edge skiving effect of existing pole piece.
By the way that curved portion and chamfering is arranged at flow-stopping plate, flow distribution plate edge, when slurry flow to diffluence pass, concave arc portion makes
Flow rate of slurry reduces, and slurry flow to chamfering along concave arc portion, outer convex curvilinear, is effectively reduced flow rate of slurry, reinforcement
Area edge skiving effect reduced the drum side phenomenon of high flow rate bring coating medium area edge.It is fixed by being arranged in lower die head
Position slot and positioning column opens up card slot on die head gasket, so that the positioning of die head gasket is facilitated accurate, install convenient, keep coated face close
The consistency of degree and coating medium area thickness.
Claims (7)
1. a kind of extrusion coating machine die head gasket, it is characterised in that: described including edge bearing main body, flow-stopping plate (1), flow distribution plate (2)
Edge bearing main body includes a long side (3) and two short sides (4), and described flow-stopping plate (1) one end is vertical with the short side (4) one end to be connected
Connect, flow-stopping plate (1) other end is equipped with curved portion, chamfering (5), the flow distribution plate (2) be set to two short sides (4) it
Between, and connect with the long side (3), flow distribution plate (2) two sides are equipped with curved portion, chamfering (5), and the curved portion is respectively positioned on
Close to the long side (3) this side, diffluence pass is formed between the flow-stopping plate (1) and the flow distribution plate (2).
2. a kind of extrusion coating machine die head gasket according to claim 1, it is characterised in that: the curved portion includes indent
Curved portion (6), outer convex curvilinear (7), the concave arc portion (6) are disposed in proximity to the long side (3) this side.
3. a kind of extrusion coating machine die head gasket according to claim 1, it is characterised in that: the length of the chamfering (5)
For 0.5~6mm.
4. a kind of extrusion coating machine die head gasket according to claim 1, it is characterised in that: the chamfering (5) be 3mm ×
1mm。
5. a kind of extrusion coating machine die head gasket according to any one of claims 1-4, it is characterised in that: further include card
Slot (8), the card slot (8) are opened in the edge bearing main body.
6. a kind of extrusion coating machine die head including die head gasket described in claim 1, it is characterised in that: further include upper die head
(9), lower die head (10), pressure chamber (11), conveyance conduit (12), locating slot (13), the pressure chamber (11) be opened in it is described under
In die head (10), the conveyance conduit (12) is connected to the lower die head (10) upper surface, and the locating slot (13) is under described
(10) three side of die head opens up, the die head gasket be set to the locating slot (13) in, and be located at the upper die head (9) and it is described under
Between die head (10), the upper die head (9) is fastened by bolts with the lower die head (10).
7. a kind of extrusion coating machine die head according to claim 6, it is characterised in that: it further include positioning column (14), it is described
Positioning column (14) is set on the lower die head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820807519.4U CN208527143U (en) | 2018-05-29 | 2018-05-29 | A kind of extrusion coating machine die head gasket and die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820807519.4U CN208527143U (en) | 2018-05-29 | 2018-05-29 | A kind of extrusion coating machine die head gasket and die head |
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| Publication Number | Publication Date |
|---|---|
| CN208527143U true CN208527143U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820807519.4U Active CN208527143U (en) | 2018-05-29 | 2018-05-29 | A kind of extrusion coating machine die head gasket and die head |
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| Country | Link |
|---|---|
| CN (1) | CN208527143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108745775A (en) * | 2018-05-29 | 2018-11-06 | 安徽力信能源科技有限责任公司 | A kind of extrusion coating machine die head gasket and die head |
| CN109865641A (en) * | 2019-03-07 | 2019-06-11 | 东莞维科电池有限公司 | A kind of coated face density control method, device, equipment and the storage medium of extrusion coating machine |
-
2018
- 2018-05-29 CN CN201820807519.4U patent/CN208527143U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108745775A (en) * | 2018-05-29 | 2018-11-06 | 安徽力信能源科技有限责任公司 | A kind of extrusion coating machine die head gasket and die head |
| CN109865641A (en) * | 2019-03-07 | 2019-06-11 | 东莞维科电池有限公司 | A kind of coated face density control method, device, equipment and the storage medium of extrusion coating machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 2 Dagang Dashan Road, Zhenjiang New District, Zhenjiang City, Jiangsu Province Patentee after: Lixin (Jiangsu) Energy Technology Co.,Ltd. Address before: 237300 Jinjiazhai Road, Modern Industrial Park, Jinzhai County, Lu'an City, Anhui Province Patentee before: ANHUI LIXIN ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |