CN108745775A - 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
- Publication number
- CN108745775A CN108745775A CN201810527483.9A CN201810527483A CN108745775A CN 108745775 A CN108745775 A CN 108745775A CN 201810527483 A CN201810527483 A CN 201810527483A CN 108745775 A CN108745775 A CN 108745775A
- Authority
- CN
- China
- Prior art keywords
- die head
- flow
- coating machine
- curved portion
- extrusion coating
- 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.)
- Pending
Links
- 238000007765 extrusion coating Methods 0.000 title claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 abstract description 24
- 239000011248 coating agent Substances 0.000 abstract description 19
- 238000000576 coating method Methods 0.000 abstract description 19
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000006256 anode slurry Substances 0.000 description 1
- 239000006257 cathode slurry Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011900 installation process 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
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect 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
-
- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention 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 and described short side one end vertical connection, 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 both sides are equipped with curved portion, chamfering, the curved portion is respectively positioned on close to this side of the long side, and diffluence pass is formed between the flow-stopping plate and the flow distribution plate.It is an advantage of the invention 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 present invention relates to extrusion coating machine field more particularly to a kind of extrusion coating machine die head gaskets and die head.
Background technology
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 usually using extrusion coater in extrusion coating machine die head, when slurry is from pressure chamber
After centre enters extrusion coating machine, slurry is coated uniformly on base material and is dried by certain pressure, makes 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, is also easy to produce at material area edge about 3~5mm after slurry is dried in an oven
Drum side, in coating and roll-in, easily broken band, causes largely to scrap, and seriously affect consistency and the safety of battery capacity.
In addition, die head gasket is easy displacement during the installation process, die head gasket somewhat tilts, and may result in coated face density and painting
Cloth area thickness changes, and the variation of coated face density and coating medium area thickness directly affects the quality of coating quality, from
And influence the quality of battery.
Invention content
Goal of the invention：In view of the above-mentioned problems, the object of the present invention is to provide a kind of extrusion coating machine die head gasket and die head,
So that slurry is kept uniform flow velocity by die head, pole coating is made to keep thickness uniform, material area edge is not likely to produce bulging 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 and described short side one end vertical connection, the flow-stopping plate other end are 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 both sides are all provided with
There are curved portion, chamfering, the curved portion to be 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 is that 0.5~6mm flows through the stream of slurry of chamfering specifically, the chamfering is 3mm × 1mm
Speed reduces.
Preferably, it is positioned for the ease 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 head, including it is die head gasket, upper die head, lower die head, pressure chamber, defeated
Pipeline, locating slot, the pressure chamber is sent to be opened in the lower die head, the conveyance conduit connects with the lower die head upper surface
Logical, the locating slot is opened up along three side of the lower die head, and the die head gasket is set in the locating slot, and is located at the upper mold
Between head and the lower die head, the upper die head is fastened by bolts with the lower die head, when fastening upper die head with lower die 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.
Advantageous effect：Compared with prior art, it is an advantage of the invention that smart structural design, pass through curved portion and chamfering
Cooperation 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 and rouses side
Phenomenon solves the problems, such as, due to the unstable caused battery core Capacity uniformity of coating medium area thickness and safety, to reduce coating
With nipping process band of discontinuance number, learies are reduced, die head gasket is quick for installation, prevents die head gasket from shifting, and keeps coated face
The consistency of density and coating medium area thickness.
Description of the drawings
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 of the pole piece and prior art preparation that are prepared in the present embodiment.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after having read the present invention, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
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
One end vertical connection on side 4,1 other end of flow-stopping plate are equipped with curved portion, chamfering 5.Flow distribution plate 2 is set between two short sides 4, shunting
One end of plate 2 is fixed with long side 3, and quantity and the position of flow distribution plate 2 according to the demand of pole coating, can be arranged.Such as Fig. 2 institutes
Show, the other end of flow distribution plate 3 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 3 both sides of flow distribution plate, with
Chamfering 5 is adjacent.As shown in figure 3, curved portion includes concave arc portion 6 and outer convex curvilinear 7, concave arc portion 6 is disposed in proximity to
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, and die head gasket 15 is pacified
When dress, card slot 8 is placed on positioning column 14, is accurately positioned, and prevents die head gasket 15 from moving.
As Figure 4-Figure 6, the invention also discloses a kind of extrusion coating machine die heads, including above-mentioned die head gasket 15, upper mold
First 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,
Voltage stabilizing is used for when slurry conveys.Conveyance conduit 12 is connected to 10 upper surface of lower die head.Locating slot 13 is along three sides of lower die head 10
Open up, the thickness of die head gasket 15 is 1mm, and die head gasket 15 is set in locating slot 13, and positioned at upper die head 9 and lower die head 10 it
Between, 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.
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 base material 17 to move, and extrusion coating machine is uniformly coated on anode and cathode slurry
On base material.Slurry is coated in by die head on base material 17, 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, in thickness test result such as Fig. 8 shown in band circle lines, 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
The edge skiving effect with obvious effects for being better than 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 for the coating medium area edge that high flow rate is brought.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：It is 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 (3) both 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：It 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：It 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 positioned at the upper die head (9) with 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：Further include positioning column (14), it is described
Positioning column (14) is set in the lower die head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527483.9A CN108745775A (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 |
|---|---|---|---|
| CN201810527483.9A CN108745775A (en) | 2018-05-29 | 2018-05-29 | A kind of extrusion coating machine die head gasket and die head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108745775A true CN108745775A (en) | 2018-11-06 |
Family
ID=64003314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527483.9A Pending CN108745775A (en) | 2018-05-29 | 2018-05-29 | A kind of extrusion coating machine die head gasket and die head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108745775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044680A (en) * | 2020-08-31 | 2020-12-08 | 天能帅福得能源股份有限公司 | Manufacturing method of coating gasket with uniform coating density |
| CN115870560A (en) * | 2022-12-30 | 2023-03-31 | 重庆太蓝新能源有限公司 | Cutting mechanism and packaging method |
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| JP2006181440A (en) * | 2004-12-27 | 2006-07-13 | Dainippon Printing Co Ltd | Die head |
| JP2007237128A (en) * | 2006-03-10 | 2007-09-20 | Fujifilm Corp | Application method and applicator |
| CN102553780A (en) * | 2011-12-20 | 2012-07-11 | 深圳市浩能科技有限公司 | Coating machine extrusion head for manufacturing lithium ion batteries |
| KR101288071B1 (en) * | 2012-03-30 | 2013-07-19 | 주식회사 디씨엔 | Slot coater |
| CN205146588U (en) * | 2015-11-16 | 2016-04-13 | 惠州市创明能源科技有限公司 | Extrusion coating machine is with extrusion die head and mould headrest piece |
| CN205270029U (en) * | 2015-10-28 | 2016-06-01 | 深圳市盛波光电科技有限公司 | Slit coating machine and gasket thereof |
| CN106007391A (en) * | 2015-03-26 | 2016-10-12 | 东丽工程株式会社 | Slit nozzle, coating method and coating device |
| CN107978729A (en) * | 2017-11-21 | 2018-05-01 | 中航锂电（洛阳）有限公司 | The definite method of die head gasket chamfer dimesion and the die head gasket for realizing this method |
| CN207385819U (en) * | 2017-08-24 | 2018-05-22 | 宁德时代新能源科技股份有限公司 | Apparatus for coating |
| CN208527143U (en) * | 2018-05-29 | 2019-02-22 | 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 |
-
2018
- 2018-05-29 CN CN201810527483.9A patent/CN108745775A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004275810A (en) * | 2003-03-12 | 2004-10-07 | Pi R & D Co Ltd | Coating die using shim plate and coating method using the same |
| JP2004283779A (en) * | 2003-03-25 | 2004-10-14 | Hirata Corp | Liquid coating device and liquid coating method |
| JP2006181440A (en) * | 2004-12-27 | 2006-07-13 | Dainippon Printing Co Ltd | Die head |
| JP2007237128A (en) * | 2006-03-10 | 2007-09-20 | Fujifilm Corp | Application method and applicator |
| CN102553780A (en) * | 2011-12-20 | 2012-07-11 | 深圳市浩能科技有限公司 | Coating machine extrusion head for manufacturing lithium ion batteries |
| KR101288071B1 (en) * | 2012-03-30 | 2013-07-19 | 주식회사 디씨엔 | Slot coater |
| CN106007391A (en) * | 2015-03-26 | 2016-10-12 | 东丽工程株式会社 | Slit nozzle, coating method and coating device |
| CN205270029U (en) * | 2015-10-28 | 2016-06-01 | 深圳市盛波光电科技有限公司 | Slit coating machine and gasket thereof |
| CN205146588U (en) * | 2015-11-16 | 2016-04-13 | 惠州市创明能源科技有限公司 | Extrusion coating machine is with extrusion die head and mould headrest piece |
| CN207385819U (en) * | 2017-08-24 | 2018-05-22 | 宁德时代新能源科技股份有限公司 | Apparatus for coating |
| CN107978729A (en) * | 2017-11-21 | 2018-05-01 | 中航锂电（洛阳）有限公司 | The definite method of die head gasket chamfer dimesion and the die head gasket for realizing this method |
| CN208527143U (en) * | 2018-05-29 | 2019-02-22 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044680A (en) * | 2020-08-31 | 2020-12-08 | 天能帅福得能源股份有限公司 | Manufacturing method of coating gasket with uniform coating density |
| CN115870560A (en) * | 2022-12-30 | 2023-03-31 | 重庆太蓝新能源有限公司 | Cutting mechanism and packaging method |
| CN115870560B (en) * | 2022-12-30 | 2024-01-26 | 重庆太蓝新能源有限公司 | Cutting mechanism and packaging method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |