CN108672200A - Apparatus for coating and coating method - Google Patents
Apparatus for coating and coating method Download PDFInfo
- Publication number
- CN108672200A CN108672200A CN201810396809.9A CN201810396809A CN108672200A CN 108672200 A CN108672200 A CN 108672200A CN 201810396809 A CN201810396809 A CN 201810396809A CN 108672200 A CN108672200 A CN 108672200A
- Authority
- CN
- China
- Prior art keywords
- coating
- roller
- soaking
- mesh film
- soaks
- 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
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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
-
- 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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
The invention belongs to mesh film coating process technical field, it is related to a kind of apparatus for coating and coating method.The apparatus for coating is used for coating net pore membrane comprising coating die head soaks component and coating backing roller, and component and the coating backing roller of soaking is set gradually along mesh film conveying direction, and the component that soaks is for soaking mesh film；The mesh film is surrounded on at least partly outer wall of the coating backing roller, and the coating die head is equipped with inlet port and outlet port, and the discharge port is directed at the coating backing roller and is coated with the mesh film of the outer wall to being surrounded on the coating backing roller.The apparatus for coating can make the mesh on mesh film keep moistening in coating process, and anode and cathode slurry is easy to merge with the solvent soaked in component, anode and cathode slurry is more rapidly infiltrated through in mesh, the air in mesh is squeezed out, while anode and cathode slurry being avoided to be sticked in the auxiliary film compound with mesh film.
Description
Technical field
The invention belongs to mesh film coating process technical fields, more particularly to a kind of apparatus for coating and coating method.
Background technology
The common coating process of lithium electricity is directly coated on not having meshed aluminium foil and copper foil by coating apparatus at present
Anode and cathode slurry.
Mesh film coating process is the new process of lithium battery and super capacitance field, also referred to as 3D coatings in industry,
This technique can improve lithium electricity surface density.But since mesh film has mesh, carried out according to existing coating apparatus and technique
Coating, anode and cathode slurry can penetrate mesh and adhere on the roller of coating apparatus, thus existing coating apparatus and technique can not
Meet the coating requirement of mesh film.
It is adhered on the roller of coating apparatus to prevent anode and cathode slurry from penetrating mesh, in the prior art usually in mesh film
A kind of first compound auxiliary coated film in the back side is coated again.But the coating process can bring new problem, the hole on mesh film
Become nonpenerative hole, thus cause the air in mesh and be not easy to be discharged, when coating is also easy to produce bubble, and it is close to reduce face
Degree.In addition, the pole piece out-of-flatness after coating, or even will appear pit, coating is not achieved and requires.
Invention content
The technical problem to be solved by the present invention is to：The technology of bubble is also easy to produce in coating for existing coating apparatus
Problem provides a kind of apparatus for coating and coating method.
In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides a kind of apparatus for coating, for being coated with mesh
Film comprising coating die head soaks component and coating backing roller, and component and the coating backing roller of soaking is along mesh film conveying side
To setting gradually, the component that soaks is for soaking the mesh film；
The mesh film is surrounded on at least partly outer wall of the coating backing roller, the coating die head be equipped with feed inlet and
Discharge port, the discharge port are directed at the coating backing roller and are applied with the mesh film of the outer wall to being surrounded on the coating backing roller
Cloth.
Apparatus for coating according to the ... of the embodiment of the present invention is before coating soaked mesh film by soaking the solvent in component,
The mesh on mesh film is set to keep moistening in coating process, when anode and cathode slurry is coated to mesh from the discharge port of coating die head
When on film, since anode and cathode slurry is easy to merge with the solvent soaked in component so that anode and cathode slurry can more rapidly ooze
It penetrates in mesh, the air in mesh is squeezed out, while anode and cathode slurry being avoided to be sticked in the auxiliary film compound with mesh film.
In addition, the apparatus for coating of the embodiment of the present invention is simple in structure and cost is relatively low.
Optionally, the component that soaks includes soaking roller and soaking vessels, and the soaking vessels are for soaking described soak
Roller, the roller that soaks is for soaking mesh film.
Optionally, the soaking vessels are flux bath, and soaking solvent, the part for soaking roller are equipped in the flux bath
It immerses in the soaking solvent, the part that do not immerse in the soaking solvent for soaking roller offsets with mesh film；
The soaking solvent is water or N-Methyl pyrrolidone.
Optionally, the periphery for soaking roller is surrounded with water-holding portion, the water-holding portion for draw it is described soak it is molten
Agent and by the soaking solvent be coated on the mesh film on.
Optionally, the apparatus for coating further includes baking oven, is passed through by the mesh film that the coating backing roller is drawn described
Baking oven.
Optionally, the roller that soaks is arranged side by side with the coating backing roller, and soaks roller and the coating backing roller described
Between be formed with logical material gap, the mesh film passes through the logical material gap, the both side surface of the mesh film to abut institute respectively
It states and soaks roller and the coating backing roller.
Optionally, the apparatus for coating further included roller, it is described cross roller and be used to mesh film being provided to described soak component.
On the other hand, an embodiment of the present invention provides a kind of coating methods, are used for coating net pore membrane, including
It is bonded auxiliary film in the side of mesh film, forms composite web pore membrane；
The composite web pore membrane is provided to and soaks component, it is described soak component to the mesh film of the composite web pore membrane into
Row soaks；
It is soaked the composite web pore membrane derived from component by described and is delivered to coating backing roller, the composite web pore membrane is equipped with auxiliary
The side of film is helped to be fitted on the coating backing roller, the composite web pore membrane is equipped with the side of mesh film towards coating die head；
The mesh film is coated by coating die head.
Optionally, the coating method further includes：
Composite web pore membrane after coating, which is provided in baking oven, makes its drying.
Optionally, the component that soaks includes soaking roller and flux bath, and soaking solvent is equipped in the flux bath；
" the composite web pore membrane is provided to and soaks component, it is described to soak mesh film of the component to the composite web pore membrane
Soaked " include：
The composite web pore membrane is crossed into roller by one and is provided to described soak on roller；
The part that described will soak roller is immersed in the flux bath, makes described to soak roller and immerse the part in the flux bath
Draw the soaking solvent in the flux bath；
Roller is soaked described in rotation, and the soaking solvent for soaking roller absorption is made to be coated to the mesh film of the composite web pore membrane
On, so that the mesh film of the composite web pore membrane is soaked.
Description of the drawings
Fig. 1 is the schematic diagram for the apparatus for coating that one embodiment of the invention provides.
Reference numeral in specification is as follows：
1, coating die head；101, discharge port；
2, roller is crossed；
3, component is soaked；301, roller is soaked；302, flux bath；303, soaking solvent；
4, coating backing roller；
5, composite web pore membrane；
6, baking oven.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, the apparatus for coating that one embodiment of the invention provides, is used for coating net pore membrane comprising coating die head
1, it crosses roller 2, soak component 3 and coating backing roller 4, it is described to soak component 3 and the coating backing roller 4 along mesh film conveying direction successively
Setting, the component 3 that soaks is for soaking the mesh film.
The mesh film is surrounded on at least partly outer wall of the coating backing roller 4, and the coating die head 1 is equipped with feed inlet
With discharge port 101, the discharge port 101 is directed at the coating backing roller 4 with the mesh in the outside to being surrounded on the coating backing roller 4
Film is coated.
Apparatus for coating provided in an embodiment of the present invention passes through the solvent soaked in component 3 by mesh film before coating
It soaks, the mesh on mesh film is made to keep moistening in coating process, when anode and cathode slurry is from the discharge port of the coating die head 1
101 when being coated on mesh film, since anode and cathode slurry is easy to soak the solvent in component 3 with described and merge so that positive and negative anodes
Slurry can be infiltrated through more rapidly in mesh, the air in mesh is squeezed out, while anode and cathode slurry be avoided to be sticked to and net
In the compound auxiliary film of pore membrane.In addition, the apparatus for coating of the embodiment of the present invention is simple in structure and cost is relatively low.
It should be noted that composite web pore membrane 5 shown in figure is composite film of the mesh film with auxiliary film after compound, it is multiple
It is mesh film conveying direction to close the arrow on mesh film 5.In coating process, it is only necessary to the mesh film in composite web pore membrane 5 into
Row is soaked and is coated with.Auxiliary film can be used for preventing soaking solvent 303 or anode and cathode slurry to be sticked on coating backing roller 4, simultaneously
Also mesh film can be made preferably to be soaked and be coated with, after the completion of coating, auxiliary film need to be removed from mesh film.
In one embodiment, described to soak as shown in Figure 1, the component 3 that soaks includes soaking roller 301 and soaking vessels
Container soaks roller 301 described in being used to soak, and the roller 301 that soaks is for soaking mesh film.
Preferably, the roller 301 that soaks is foam roller, i.e., is arranged foamed cotton layer in the outer ring of roll shaft.
In one embodiment, as shown in Figure 1, the soaking vessels are flux bath 302, leaching is equipped in the flux bath 302
Wet solvent 303, the part for soaking roller 301 are immersed in the soaking solvent 303, and described to soak not immersing for roller 301 described
Part in soaking solvent 303 offsets with mesh film.
The part for soaking roller 301 is immersed in the soaking solvent 303, and the roller 301 that soaks can be made fully to adsorb leaching
Wet solvent 303.The rotation direction for soaking roller 301 and mesh film tape transport direction (coating direction) on the contrary, can uniformly by
The soaking solvent 303 is coated on mesh film without generating dewdrop.
The soaking solvent 303 is preferably that viscosity is relatively low and do not interfere with the solvent of the composition of anode and cathode slurry, e.g., water or
NMP (N-Methyl pyrrolidone) etc..The soaking solvent 303 selects the lower solvent of viscosity, has and is easy to make it to be seeped into mesh film
On mesh in, so that the mesh on mesh film is kept moistening in coating process, when anode and cathode slurry is from the coating die head 1
When discharge port 101 is coated on mesh film, since the viscosity of the soaking solvent 303 is relatively low, keep anode and cathode slurry easy and institute
The fusion of soaking solvent 303 is stated, to which in the mesh on rapid osmotic networking pore membrane, the air in mesh be squeezed out.
In one embodiment, the periphery for soaking roller 301 is surrounded with water-holding portion, and the water-holding portion is for drawing institute
It states soaking solvent and the soaking solvent is coated on the mesh film.
In one embodiment, the apparatus for coating further includes baking oven, is worn by the mesh film that the coating backing roller 4 is drawn
Cross the baking oven 6.
Mesh film after the baking oven 6 is used to be coated with is dried, with the finished product after being cured.
In one embodiment, as shown in Figure 1, the roller 301 that soaks is arranged side by side with the coating backing roller 4, and described
It soaks and is formed with logical material gap between roller 301 and the coating backing roller 4, the mesh film passes through the logical material gap, the net
The both side surface of pore membrane soaks roller 301 and the coating backing roller 4 described in abutting respectively.It can directly be provided after so that mesh film is soaked
To the outer wall of the coating backing roller 4, the use space of the apparatus for coating is reduced.
In one embodiment, as shown in Figure 1, the apparatus for coating further included roller 2, the roller 2 of crossing is used for mesh film
Component 3 is soaked described in leading to.The coating method that one embodiment of the invention provides is used for coating net pore membrane comprising following step
Suddenly：
It is bonded auxiliary film in the side of mesh film, forms composite web pore membrane；
The composite web pore membrane is provided to and soaks component, it is described soak component to the mesh film of the composite web pore membrane into
Row soaks；
It is soaked the composite web pore membrane derived from component by described and is delivered to coating backing roller, the composite web pore membrane is equipped with auxiliary
The side of film is helped to be fitted on the coating backing roller, the composite web pore membrane is equipped with the side of mesh film towards coating die head；
The mesh film is coated by coating die head.
In one embodiment, the coating method further includes：
Composite web pore membrane after coating, which is provided in baking oven, makes its drying.
In one embodiment, the component that soaks includes soaking roller and flux bath, and soaking solvent is equipped in the flux bath.
" the composite web pore membrane is provided to and soaks component, it is described to soak mesh film of the component to the composite web pore membrane
Soaked " include：
The composite web pore membrane is crossed into roller by one and is provided to described soak on roller；
The part that described will soak roller is immersed in the flux bath, makes described to soak roller and immerse the part in the flux bath
Draw the soaking solvent in the flux bath；
Roller is soaked described in rotation, and the soaking solvent for soaking roller absorption is made to be coated to the mesh film of the composite web pore membrane
On, so that the mesh film of the composite web pore membrane is soaked.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of apparatus for coating is used for coating net pore membrane, which is characterized in that including coating die head, component and coating backing roller are soaked,
Component and the coating backing roller of soaking is set gradually along mesh film conveying direction, and the component that soaks is used for the mesh
Film soaks；
The mesh film is surrounded on at least partly outer wall of the coating backing roller, and the coating die head is equipped with feed inlet and discharging
Mouthful, the discharge port is directed at the coating backing roller and is coated with the mesh film of the outer wall to being surrounded on the coating backing roller.
2. apparatus for coating according to claim 1, which is characterized in that the component that soaks is including soaking roller and soaking appearance
Device, the soaking vessels for soak it is described soak roller, the roller that soaks is for soaking mesh film.
3. apparatus for coating according to claim 2, which is characterized in that the soaking vessels are flux bath, the flux bath
Interior to be equipped with soaking solvent, the part for soaking roller is immersed in the soaking solvent, it is described soak roller do not immerse described soak
Part in solvent offsets with mesh film；
The soaking solvent is water or N-Methyl pyrrolidone.
4. apparatus for coating according to claim 3, which is characterized in that the periphery for soaking roller is surrounded with water suction
Portion, the water-holding portion is for drawing the soaking solvent and the soaking solvent being coated on the mesh film.
5. apparatus for coating according to claim 3, which is characterized in that the apparatus for coating further includes baking oven, by the painting
The mesh film that cloth back flow roll is drawn passes through the baking oven.
6. apparatus for coating according to claim 2, which is characterized in that the roller that soaks is set side by side with the coating backing roller
It sets, and logical material gap is formed between roller and the coating backing roller in described soak, the mesh film passes through the logical material gap,
The both side surface of the mesh film soaks roller and the coating backing roller described in abutting respectively.
7. apparatus for coating according to claim 1, which is characterized in that the apparatus for coating further included roller, described to cross roller
Described component is soaked for mesh film to be provided to.
8. a kind of coating method is used for coating net pore membrane, which is characterized in that including
It is bonded auxiliary film in the side of mesh film, forms composite web pore membrane；
The composite web pore membrane is provided to and soaks component, the component that soaks soaks the mesh film of the composite web pore membrane
It is wet；
It is soaked the composite web pore membrane derived from component by described and is delivered to coating backing roller, the composite web pore membrane is equipped with auxiliary film
Side be fitted on the coating backing roller, the composite web pore membrane is equipped with the side of mesh film towards coating die head；
The mesh film is coated by coating die head.
9. coating method according to claim 7, which is characterized in that the coating method further includes：
Composite web pore membrane after coating, which is provided in baking oven, makes its drying.
10. coating method according to claim 8 or claim 9, which is characterized in that the component that soaks includes soaking roller and solvent
Slot is equipped with soaking solvent in the flux bath；
" the composite web pore membrane is provided to and soaks component, the component that soaks carries out the mesh film of the composite web pore membrane
Soak " include：
The composite web pore membrane is crossed into roller by one and is provided to described soak on roller；
The part for soaking roller is immersed in the flux bath, the roller that soaks is made to immerse the absorption of the part in the flux bath
Soaking solvent in the flux bath；
Roller is soaked described in rotation, and the soaking solvent for soaking roller absorption is made to be coated on the mesh film of the composite web pore membrane,
The mesh film of the composite web pore membrane is set to soak.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396809.9A CN108672200A (en) | 2018-04-28 | 2018-04-28 | Apparatus for coating and coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396809.9A CN108672200A (en) | 2018-04-28 | 2018-04-28 | Apparatus for coating and coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108672200A true CN108672200A (en) | 2018-10-19 |
Family
ID=63802244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396809.9A Pending CN108672200A (en) | 2018-04-28 | 2018-04-28 | Apparatus for coating and coating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672200A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102089904A (en) * | 2008-04-07 | 2011-06-08 | 丰田自动车株式会社 | Coater and method of coating |
| CN102179346A (en) * | 2011-04-28 | 2011-09-14 | 东莞市九州浩德新能源设备有限公司 | Mesh coating machine and method |
| JP2012075980A (en) * | 2010-09-30 | 2012-04-19 | Hirano Tecseed Co Ltd | Coating apparatus |
| JP2016085957A (en) * | 2014-10-24 | 2016-05-19 | 株式会社豊田自動織機 | Manufacturing device of electrode and electrode |
-
2018
- 2018-04-28 CN CN201810396809.9A patent/CN108672200A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102089904A (en) * | 2008-04-07 | 2011-06-08 | 丰田自动车株式会社 | Coater and method of coating |
| JP2012075980A (en) * | 2010-09-30 | 2012-04-19 | Hirano Tecseed Co Ltd | Coating apparatus |
| CN102179346A (en) * | 2011-04-28 | 2011-09-14 | 东莞市九州浩德新能源设备有限公司 | Mesh coating machine and method |
| JP2016085957A (en) * | 2014-10-24 | 2016-05-19 | 株式会社豊田自動織機 | Manufacturing device of electrode and electrode |
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Application publication date: 20181019 |