CN207667933U - Apparatus for coating - Google Patents
Apparatus for coating Download PDFInfo
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- CN207667933U CN207667933U CN201721619294.1U CN201721619294U CN207667933U CN 207667933 U CN207667933 U CN 207667933U CN 201721619294 U CN201721619294 U CN 201721619294U CN 207667933 U CN207667933 U CN 207667933U
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- coating
- die head
- crack
- diversion trench
- gasket
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Abstract
The utility model provides a kind of apparatus for coating, including upper die head, lower die head and gasket.Lower die head has the first charging aperture entered for the first coating and the first cavity；Upper die head has the second charging aperture entered for the second coating and the second cavity；Gasket has the first diversion trench, is connected to the first cavity and with open first opening forward, the first diversion trench and upper die head and lower die head form the first coating crack；Gasket also has the second diversion trench equipped with coupling recess portion, the lower surface of coupling recess portion and the lower surface of gasket are coplanar, the both ends transversely of coupling recess portion are connected to two medial surfaces of the second diversion trench, coupling recess portion forms the second opening to open front, and coupling recess portion and the upper die head and lower die head of the second diversion trench form the second coating crack.In the apparatus for coating of the utility model, the presence of coupling recess portion reduces the thickness for the second paint coatings being coated on band, so as to reduce the abrasion to roll while cost is reduced.
Description
Technical field
The utility model is related to coating applications more particularly to a kind of apparatus for coating.
Background technology
Lithium ion battery industry development is rapid, and safety problem is always the most important thing.Lithium battery generally by anode pole piece,
Cathode sheet and isolation film between the two are wound, in order to avoid anode pole piece burrs on edges and cathode sheet contact occur
Short circuit, cathode sheet edge can apply insulating layer coating (such as insulating layer that material is ceramic slurry), to play the role of insulation, from
And improve safety.
In order to improve safety, in the process of the cathode coating before preparing lithium ion battery, will be prepared with apparatus for coating
Good active material layer slurry and insulating layer slurry be uniformly coated to respectively the corresponding region on band S (such as aluminium foil) to
Form pole piece, the coating width of insulating layer mainly by change the gasket of apparatus for coating opening width and opening chamfering come
Control, however thickness is but without effective control method.Such as it as shown in fig. 7, is formed as activity on band S after coating
It first paint coatings C1 of material layer and is applied as the second paint coatings C2, the first paint coatings C1 of insulating layer and the second coating
Layer C2 equal thickness, if the slurry for being coated to the second paint coatings C2 is ceramic slurry, at present ceramic layer coats thickness 40~
100um, not only cost is higher for blocked up coating thickness, and easily squeezes and occur with the first paint coatings C1 as active material layer
Drum side etc. is abnormal, and during subsequent pole piece calandering steps, with the mass production of cold pressing, for rolling for roll-in pole piece
Roller is susceptible to abrasion, when roll has certain abrasion, easily causes cold pressing broken belt, is normally produced to influence producing line.
Invention content
It in view of the existing technical defect, can be the purpose of this utility model is to provide a kind of apparatus for coating
Reduce the abrasion to roll while reducing cost.
To achieve the goals above, the utility model provides a kind of apparatus for coating, including：Upper die head；Lower die head, it is fixed
In the lower section of upper die head and upper die head pairing；Gasket is fixed between upper die head and lower die head.Wherein, lower die head has：First
Feed inlet enters for the first coating；And first cavity, the first cavity hatch in the upper surface of lower die head and be communicated in first into
Material mouth；Upper die head has：Second charging aperture enters for the second coating；And second cavity, the second cavity hatch is in upper die head
Lower surface and it is communicated in second charging aperture；Gasket has：First diversion trench is arranged along the horizontal, penetrates through gasket along the vertical direction
Subregion is formed, and is connected to the first cavity and with open first opening forward, the first diversion trench and upper die head and lower die head
The first coating crack is formed together.Gasket also has：Second diversion trench, it is transversely arranged spaced apart with the first diversion trench, second
Diversion trench is equipped with coupling recess portion, and the lower surface of coupling recess portion and the lower surface of gasket are coplanar, the both ends transversely of coupling recess portion
Two medial surfaces of the second diversion trench are connected to, coupling recess portion forms the second opening to open front, the company of the second diversion trench
It connects recess portion and forms the second coating crack together with upper die head and lower die head.
The beneficial effects of the utility model are as follows：In the apparatus for coating of the utility model, first charging aperture, the first cavity
With the first return guide trough at first flow, second charging aperture, the second cavity and the second return guide trough are at second flow channel, such as are applying
When cloth cathode sheet, cathode active material slurry flows to the first water conservancy diversion as the first slurry from first charging aperture into the first cavity
Slot, ceramic slurry flows to the second diversion trench as the second coating from second charging aperture into the second cavity, due to coupling recess portion
In the presence of so that the thickness for flowing to the ceramic slurry of the second coating crevice place of the second opening is less than the first painting for flowing to the first opening
The thickness of the cathode active material slurry of cloth crevice place reduces the thickness for the second paint coatings being coated on band, to
The subsequently abrasion to roll can be reduced while cost is reduced.
Description of the drawings
Fig. 1 is the schematic diagram of the apparatus for coating of the utility model.
Fig. 2 is the stereogram of another angle of Fig. 1.
Fig. 3 is the exploded perspective view of Fig. 1.
Fig. 4 is the stereogram of the upper die head of Fig. 1.
Fig. 5 A are the stereograms of Fig. 1 splitted, and wherein gasket is not shown.
Fig. 5 B are another stereograms splitted of Fig. 1, and wherein gasket is not shown.
Fig. 6 is the schematic diagram of the gasket of the apparatus for coating of the utility model.
Fig. 7 is the schematic diagram of the band coated using the apparatus for coating of the prior art.
Fig. 8 is the schematic diagram of the band coated using the apparatus for coating of the utility model.
Wherein, the reference numerals are as follows：
1 upper die head, 321 coupling recess portion
11 second charging apertures 3,211 second are open
12 second cavity, 33 gas pressure relief slot
It is coated with lip on 13 upper grooves 4
2 lower die heads 5 times are coated with lip
21 first charging aperture G1 first are coated with crack
22 first cavity G2 second are coated with crack
23 lower groove T are lateral
3 gasket S bands
The 31 first uncoated areas diversion trench S0
311 first open C, 1 first paint coatings
32 second the second paint coatings of diversion trench C2
Specific implementation mode
It is described in detail apparatus for coating according to the present utility model with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 6, apparatus for coating according to the present utility model includes：Upper die head 1；Lower die head 2, is fixed on upper mold
First 1 lower section and 1 pairing of upper die head；Gasket 3 is fixed between upper die head 1 and lower die head 2；Wherein, lower die head 2 has：First
Feed inlet 21 enters for the first coating；And first cavity 22, the first cavity 22 are opened on upper surface and the connection of lower die head 2
In first charging aperture 21；Upper die head 1 has：Second charging aperture 11 enters for the second coating；And second cavity 12, the second chamber
Body 12 is opened on the lower surface of upper die head 1 and is communicated in second charging aperture 11；Gasket 3 has：First diversion trench 31, transversely T
Arrangement, the subregion of perforation gasket 3 is formed along the vertical direction, is connected to the first cavity 22 and with open first opening forward
311, the first diversion trench 31 forms the first coating crack G1 together with upper die head 1 and lower die head 2；Gasket 3 also has：Second water conservancy diversion
Slot 32, transversely T and the first diversion trench 31 are arranged spaced apart, and the second diversion trench 32 is equipped with coupling recess portion 321, coupling recess portion 321
Lower surface and the lower surface of gasket 3 it is coplanar, the both ends of the transversely T of coupling recess portion 321 are connected to the second diversion trench 32
Two medial surfaces, coupling recess portion 321 formed to open front second be open 3211, the coupling recess portion 321 of the second diversion trench 32 with
Upper die head 1 and lower die head 2 form the second coating crack G2 together.
In the apparatus for coating of the utility model, first charging aperture 21, the first cavity 22 and the first diversion trench 31 form the
One runner, second charging aperture 11, the second cavity 12 and the second diversion trench 32 form second flow channel, such as (referring concurrently to Fig. 8),
When coated cathode pole piece, cathode active material slurry flows to the as the first slurry from first charging aperture 21 into the first cavity 22
One diversion trench 31, ceramic slurry flow to the second diversion trench 32 as the second coating from second charging aperture 11 into the second cavity 12,
Due to the presence of coupling recess portion 321 so that flow to the thickness of the ceramic slurry at the second coating crack G2 of the second opening 3211
Less than the thickness of the cathode active material slurry at the first coating crack G1 for flowing to the first opening 311, reduces and be coated to band
The thickness of the second paint coatings C2 on material S, so as to reduce the subsequently abrasion to roll while cost is reduced.
First diversion trench 31 and the second diversion trench 32 can be quantitatively arranged according to needs of production.Implement one
In example, with reference to Fig. 6, respectively there are one the second diversion trenches 32 for tool in the both sides of lateral T for the first diversion trench 31 of gasket 3, accordingly, the
Respectively there are one the second coating crack G2 for tool in the both sides of lateral T by one coating crack G1.As a result, with reference to Fig. 8, the first paint coatings C1
A second paint coatings C2 is all had in the both sides of lateral T.In order to improve operating efficiency, the first diversion trench 31 of gasket 3 exists
At least two are set as in quantity, two the second diversion trenches 32 between two neighboring first diversion trench 31 are not connected to, accordingly,
First coating crack G1 is quantitatively set as at least two, two second coatings between two neighboring first coating crack G1
Crack G2 is not connected to.Thus, it is possible to form the item that the first paint coatings C1 shown in Fig. 8 and the second paint coatings C2 are alternately arranged
Line is coated with, and there are the uncoated area S0 of the uncoated any coating of band S between two neighboring second paint coatings C2.Work as band
Material S be secondary cell pole piece when, the first paint coatings C1 be active material layer, the second paint coatings C2 be insulating layer (such as
Insulating layer containing ceramic material), uncoated area S0 is used as forming lug.The electric polarity of pole piece can be cathode or anode, accordingly
Ground material is aluminium foil (corresponding cathode sheet) or copper foil (corresponding anode pole piece).
In the apparatus for coating of the utility model, second charging aperture 11 and the second cavity 12 can not be set up directly on upper mold
On first 1, but provided by wearing the water conservancy diversion bolt (not shown) of upper die head 1.
The first diversion trench 31 is avoided enter into order to provide pressure release chamber when 31 pressure of the first diversion trench is excessive
The first coating and enter the second coating of the second diversion trench 32 and be mixed pollution, gasket 3 is also with gas pressure relief slot 33, gas pressure relief slot
33 communicate with two the second diversion trenches 32 being set between two neighboring first diversion trench 31 respectively.
With reference to Fig. 3 and Fig. 4, upper die head 1 is equipped with：Upper groove 13, from the first coating crack G1 and the second sides coating crack G2
Lower surface it is upwardly recessed；Lower die head 2 is equipped with：Lower groove 23 is coated with the upper of the sides crack G2 from the first coating crack G1 and second
Surface is downwardly concaved；Apparatus for coating further includes：Upper coating lip 4, it is plate-like, it is fixedly installed on upper groove 13 and upper coating lip 4
Lower surface is concordant with the lower surface of upper die head 1, upper coating lip 4 along first coating crack G1 and second coating crack G2 pleurapophysis for
The side of upper die head 1；Lower coating lip 5, it is plate-like, it is fixedly installed on upper surface and the lower die head 2 of lower groove 23 and lower coating lip 5
Upper surface it is concordant, it is lower coating lip 5 along first coating crack G1 and second coating crack G2 pleurapophysis for lower die head 2 side；
Wherein, upper coating lip 4 and lower coating lip 5 from above and below will in the first coating crack G1 and the second sides coating crack G2 together
Gasket 3 is clamped.It is certainly not limited to this, upper coating lip 4 can be integrally formed with upper die head 1, and lower coating lip 5 can be with lower die head 2 one
It is body formed, without upper coating lip 4 and lower coating lip 5 is separately provided.
With reference to Fig. 3 and Fig. 6, the front end of the first opening 311 of the first diversion trench 31 is chamfering, the connection of the second diversion trench 32
The front end for the second opening 3211 that recess portion 321 is formed is chamfering.Thus the flow velocity of the first coating and the second coating is controlled.
Claims (6)
1. a kind of apparatus for coating, including：
Upper die head (1)；
Lower die head (2) is fixed on lower section and upper die head (1) pairing of upper die head (1)；
Gasket (3) is fixed between upper die head (1) and lower die head (2)；
Wherein,
Lower die head (2) has：First charging aperture (21) enters for the first coating；And first cavity (22), the first cavity (22)
It is opened on the upper surface of lower die head (2) and is communicated in first charging aperture (21)；
Upper die head (1) has：Second charging aperture (11) enters for the second coating；And second cavity (12), the second cavity (12)
It is opened on the lower surface of upper die head (1) and is communicated in second charging aperture (11)；
Gasket (3) has：First diversion trench (31), transversely (T) arrangement, along the vertical direction perforation gasket (3) subregion
It is formed, is connected to the first cavity (22) and with open first opening (311) forward, the first diversion trench (31) and upper die head (1)
Form the first coating crack (G1) together with lower die head (2)；
It is characterized in that,
Gasket (3) also has：Second diversion trench (32), transversely (T) and the first diversion trench (31) are arranged spaced apart, the second water conservancy diversion
Slot (32) is equipped with coupling recess portion (321), and the lower surface and the lower surface of gasket (3) of coupling recess portion (321) are coplanar, coupling recess portion
(321) both ends of transversely (T) are connected to two medial surfaces of the second diversion trench (32), coupling recess portion (321) formed to
Second opening (3211) of open front, coupling recess portion (321) and upper die head (1) and the lower die head (2) one of the second diversion trench (32)
It rises and forms the second coating crack (G2).
2. apparatus for coating according to claim 1, which is characterized in that the first diversion trench (31) of gasket (3) is at transverse direction (T)
Respectively tool is there are one the second diversion trench (32) for both sides, accordingly, the first coating crack (G1) respectively has one in the both sides of transverse direction (T)
A second coating crack (G2).
3. apparatus for coating according to claim 2, which is characterized in that the first diversion trench (31) of gasket (3) is quantitatively
At least two are set as, two the second diversion trenches (32) between two neighboring first diversion trench (31) are not connected to, accordingly, the
One coating crack (G1) is quantitatively set as at least two, two second paintings between two neighboring first coating crack (G1)
Cloth crack (G2) is not connected to.
4. apparatus for coating according to claim 3, which is characterized in that gasket (3) also has gas pressure relief slot (33), gas pressure relief slot
(33) it is communicated respectively with two the second diversion trenches (32) being set between two neighboring first diversion trench (31).
5. apparatus for coating according to claim 1, which is characterized in that
Upper die head (1) is equipped with：Upper groove (13), from first coating crack (G1) and second be coated with the side crack (G2) following table towards
It is upper recessed；
Lower die head (2) is equipped with：Lower groove (23), from first coating crack (G1) and second be coated with the side crack (G2) upper table towards
Under it is recessed；
Apparatus for coating further includes：
Upper coating lip (4), it is plate-like, it is fixedly installed on lower surface and the upper die head (1) of upper groove (13) and upper coating lip (4)
Lower surface is concordant, and upper coating lip (4) is along the first coating crack (G1) and the second coating crack (G2) pleurapophysis for upper die head (1)
Side；
Lower coating lip (5), it is plate-like, it is fixedly installed on upper surface and the lower die head (2) of lower groove (23) and lower coating lip (5)
Upper surface is concordant, and lower coating lip (5) is along the first coating crack (G1) and the second coating crack (G2) pleurapophysis for lower die head (2)
Side；
Wherein, upper coating lip (4) and lower coating lip (5) together the first coating crack (G1) and second be coated with the crack side (G2) from
Above and below by gasket (3) be clamped.
6. apparatus for coating according to claim 1, which is characterized in that the first opening (311) of the first diversion trench (31)
Front end is chamfering, and the second front end for being open (3211) that the coupling recess portion (321) of the second diversion trench (32) is formed is chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619294.1U CN207667933U (en) | 2017-11-28 | 2017-11-28 | Apparatus for coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619294.1U CN207667933U (en) | 2017-11-28 | 2017-11-28 | Apparatus for coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207667933U true CN207667933U (en) | 2018-07-31 |
Family
ID=62967082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619294.1U Active CN207667933U (en) | 2017-11-28 | 2017-11-28 | Apparatus for coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207667933U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225763A (en) * | 2018-10-30 | 2019-01-18 | 深圳市曼恩斯特科技有限公司 | Coating head, apparatus for coating and coating method |
| CN109482428A (en) * | 2018-12-05 | 2019-03-19 | 深圳市曼恩斯特科技有限公司 | Slot coated head |
| CN110302942A (en) * | 2019-07-17 | 2019-10-08 | 宁波维科电池有限公司 | For single group or the coating die head of multiple groups lithium battery pole slice |
| CN115041368A (en) * | 2022-08-16 | 2022-09-13 | 江苏时代新能源科技有限公司 | Coating device |
| WO2023106798A1 (en) * | 2021-12-08 | 2023-06-15 | 주식회사 엘지에너지솔루션 | Slot die shim and slot die including same |
-
2017
- 2017-11-28 CN CN201721619294.1U patent/CN207667933U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225763A (en) * | 2018-10-30 | 2019-01-18 | 深圳市曼恩斯特科技有限公司 | Coating head, apparatus for coating and coating method |
| CN109225763B (en) * | 2018-10-30 | 2024-05-03 | 深圳市曼恩斯特科技股份有限公司 | Coating head, coating device and coating method |
| CN109482428A (en) * | 2018-12-05 | 2019-03-19 | 深圳市曼恩斯特科技有限公司 | Slot coated head |
| CN110302942A (en) * | 2019-07-17 | 2019-10-08 | 宁波维科电池有限公司 | For single group or the coating die head of multiple groups lithium battery pole slice |
| CN110302942B (en) * | 2019-07-17 | 2024-05-24 | 宁波维科电池有限公司 | Coating die head for single or multiple groups of lithium battery pole pieces |
| WO2023106798A1 (en) * | 2021-12-08 | 2023-06-15 | 주식회사 엘지에너지솔루션 | Slot die shim and slot die including same |
| CN115041368A (en) * | 2022-08-16 | 2022-09-13 | 江苏时代新能源科技有限公司 | Coating device |
| CN116174245A (en) * | 2022-08-16 | 2023-05-30 | 江苏时代新能源科技有限公司 | Coating device |
| CN116174245B (en) * | 2022-08-16 | 2024-03-22 | 江苏时代新能源科技有限公司 | Coating device |
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