CN218872675U - Coating device for adjusting surface density of head part of multi-segment gap pole piece - Google Patents
Coating device for adjusting surface density of head part of multi-segment gap pole piece Download PDFInfo
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- CN218872675U CN218872675U CN202223063486.2U CN202223063486U CN218872675U CN 218872675 U CN218872675 U CN 218872675U CN 202223063486 U CN202223063486 U CN 202223063486U CN 218872675 U CN218872675 U CN 218872675U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a coating device for adjusting the surface density of the head part of a multi-section gap pole piece, wherein a feed inlet of a coating valve is connected with a first outlet of a reflux valve, a second outlet of the reflux valve is connected with a feed inlet of a reflux reversing valve, and the feed inlet of the reflux valve is connected with a feed pipeline; a first outlet of the backflow reversing valve is connected with one end of the first backflow branch pipe, and a second outlet of the backflow reversing valve is connected with one end of the second backflow branch pipe; a first diaphragm valve is arranged on the first backflow branch pipe, and a second diaphragm valve is arranged on the second backflow branch pipe; the other end of the first backflow branch pipe is connected with the other end of the second backflow branch pipe and then connected with the backflow slurry outlet. The utility model discloses big or small piece pole piece prelude area density range is big problem when can effectively solving the multistage coating, can reduce the debug time and improve product quality.
Description
Technical Field
The utility model relates to an adjust coating unit of multisection gap pole piece prelude surface density belongs to lithium cell multistage formula coating technical field.
Background
The existing gap coating technology is to adjust the surface density of the head part of a pole piece by adjusting the opening of a diaphragm valve on a return pipeline. In the gap coating process, when the coating is finished, the coating valve is closed, the reflux valve is opened, the slurry flows back to the small handpiece tank from the reflux pipeline, the reflux pipeline is provided with a diaphragm valve, and the pressure in the slurry reflux pipeline can be controlled by adjusting the opening degree of the diaphragm valve.
The different closing time (different gaps) of the coating valves can influence the filling degree of the slurry in the backflow pipeline, so that the actual backflow pressure is influenced; therefore, a certain closing time (coating gap) needs to be matched with the opening degree of the corresponding diaphragm valve, so that the pole piece head area density in the process requirement range can be obtained.
However, when multiple segments of pole pieces are coated (2 segments of different gaps), the time for closing the coating valve for 2 times is different, and the opening of the diaphragm valve is only 1, so that the head part surface densities of two pole pieces are inconsistent and cannot be effectively adjusted, and the situation that the top limit of the head part surface density of one pole piece is higher and the head part surface density of the other pole piece is lower is easily caused.
Therefore, the utility model discloses a improve the problem that big or small piece pole piece prelude areal density is very poor when solving the multistage coating to coating device.
SUMMERY OF THE UTILITY MODEL
The purpose is as follows: in order to overcome the deficiencies in the prior art, the utility model provides an adjust coating unit of multisection gap pole piece prelude surface density.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does: a coating device for adjusting the surface density of a head part of a multi-segment gap pole piece comprises: the coating device comprises a coating valve and a feeding pipeline, wherein a feeding hole of the coating valve is connected with a first outlet of a reflux valve, a second outlet of the reflux valve is connected with a feeding hole of a reflux reversing valve, and the feeding hole of the reflux valve is connected with the feeding pipeline; a first outlet of the backflow reversing valve is connected with one end of the first backflow branch pipe, and a second outlet of the backflow reversing valve is connected with one end of the second backflow branch pipe; a first diaphragm valve is arranged on the first backflow branch pipe, and a second diaphragm valve is arranged on the second backflow branch pipe; the other end of the first backflow branch pipe is connected with the other end of the second backflow branch pipe and then connected with the backflow slurry outlet.
Further, a discharge hole of the coating valve is connected with the coating die head.
Further, the first diaphragm valve is used for controlling the pressure in the first return branch pipe.
Further, the second diaphragm valve is used for controlling the pressure in the second return branch pipe.
Furthermore, the other end of the backflow slurry outlet is connected with a small storage tank.
Further, the feed conduit is used for the entry of the feed slurry.
Furthermore, when the backflow reversing valve is in the first state, a feed port of the backflow reversing valve is communicated with the first backflow branch pipe. And when the backflow reversing valve is in the second state, the feed inlet of the backflow reversing valve is communicated with the second backflow branch pipe.
Furthermore, the backflow reversing valve adopts a pneumatic reversing ball valve.
Further, the inner diameter of the feeding pipeline is larger than the inner diameters of the first return branch pipe and the second return branch pipe.
Further, the pressure in the first return branch pipe is different from the pressure in the second return branch pipe.
Has the advantages that: the utility model provides a pair of adjust coating unit of multisection gap pole piece prelude surface density increases a switching-over valve on the back flow circuit, and both ends connect a diaphragm valve respectively, and each pole piece all controls backward flow pressure by corresponding diaphragm valve when scribbling big small-size piece pole piece. And a reversing function of a backflow pipeline is added, when the first pole piece is coated to a half, a reversing valve is switched, and the head part surface density of the small pole piece is controlled by another diaphragm valve to circulate.
The utility model discloses big or small piece pole piece prelude area density range is big problem when can effectively solving the multistage coating, can reduce the debug time and improve product quality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a three-dimensional schematic diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in the figure 1-2, the coating device for adjusting the head part surface density of the multi-segment gap pole piece is characterized in that a feed port 101 of a coating valve 1 is connected with a first outlet 201 of a return valve 2, a second outlet 202 of the return valve 2 is connected with a feed port 301 of a return reversing valve 3, and a feed port 203 of the return valve 2 is connected with a feed pipeline 9; a first outlet of the backflow reversing valve 3 is connected with one end of a first backflow branch pipe 4, and a second outlet is connected with one end of a second backflow branch pipe 5; a first diaphragm valve 6 is arranged on the first backflow branch pipe 4, and a second diaphragm valve 7 is arranged on the second backflow branch pipe 5; the other end of the first backflow branch pipe 4 is connected with the other end of the second backflow branch pipe 5 and then is connected with a backflow slurry outlet 8.
Further, the discharge port 102 of the coating valve 1 is connected with a coating die head.
Further, the first diaphragm valve 6 is used for controlling the pressure in the first return branch pipe 4.
Further, the second diaphragm valve 7 is used for controlling the pressure in the second return branch pipe 5.
Further, the other end of the backflow slurry outlet 8 is connected with a small storage tank.
Further, the feed conduit 9 is used for the entry of the feed slurry.
Further, when the backflow reversing valve 3 is in the first state, the feed inlet 301 of the backflow reversing valve 3 is communicated with the first backflow branch pipe 4. When the backflow reversing valve 6 is in the second state, the feed inlet 301 of the backflow reversing valve 3 is communicated with the second backflow branch pipe 5.
Further, the backflow reversing valve 3 is a pneumatic reversing ball valve.
Further, the inner pipe diameter of the feeding pipe 9 is larger than the inner pipe diameters of the first return branch pipe 4 and the second return branch pipe 5.
Further, the pressure in the first return branch 4 is different from the pressure in the second return branch 5.
Example (b):
the utility model relates to an adjust coating unit application method of multistage clearance pole piece prelude surface density as follows:
when coating is carried out in a clearance mode, slurry enters from a feeding pipeline 9 with the inner diameter of 22.5mm, the work flow of the device for controlling the head part surface density of the electrode membrane is as follows, the head part surface density is mainly influenced by the pressure at the discharge port 102 of a coating valve 1 connected with a coating die head, when the coating starts to be carried out for a long time, the pressure at the discharge port 102 is large, the head part surface density is high, and the pressure at the discharge port 102 is small, the head part surface density is low.
When white paint is left, the coating valve 1 is closed, the return valve 2 is opened, the return reversing valve 3 selects a gear, slurry flows into a pipeline with the inner diameter of 17mm to form a return branch pipe, and the return branch pipe is provided with a pressure P1 through a diaphragm valve.
When the film is coated for a long time, the coating valve 1 is opened, the reflux valve 2 is opened, the feed pipeline 9 is communicated with the feed inlet 301 of the reflux reversing valve 3 and the discharge outlet 102 of the coating valve 1, and the coating die head is coated at the pressure P1 to finish a section of gap coating.
When entering the next gap, the coating valve 1 is closed, the return valve 2 is opened, the return reversing valve 3 selects another gear, the slurry flows into another pipeline with the inner diameter of 17mm to form a return branch pipe, and the return branch pipe is provided with a pressure P2 through the diaphragm valve.
When the film is long, the coating valve 1 is opened, the reflux valve 2 is opened, the feed pipeline 9 is communicated with the feed inlet 301 of the reflux reversing valve 3 and the discharge outlet 102 of the coating valve 1, and the coating die head is coated at the pressure P2 to finish the gap coating.
With this reciprocal, through adjusting the diaphragm valve, realize the difference of different backward flow branch pipe internal pressure to realize the different pressure of coating valve 1 discharge gate, accomplish the switching of different time slot prelude face different density, with this, reduce the product range, improve product production efficiency and quality uniformity.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A coating device for adjusting the surface density of a head part of a multi-segment gap pole piece comprises: coating valve, charge-in pipeline, its characterized in that: the feed inlet of the coating valve is connected with the first outlet of the reflux valve, the second outlet of the reflux valve is connected with the feed inlet of the reflux reversing valve, and the feed inlet of the reflux valve is connected with the feed pipeline; a first outlet of the backflow reversing valve is connected with one end of the first backflow branch pipe, and a second outlet of the backflow reversing valve is connected with one end of the second backflow branch pipe; a first diaphragm valve is arranged on the first backflow branch pipe, and a second diaphragm valve is arranged on the second backflow branch pipe; the other end of the first backflow branch pipe is connected with the other end of the second backflow branch pipe and then connected with the backflow slurry outlet.
2. The coating device for adjusting the head surface density of the multi-segment gap pole piece according to claim 1, wherein: and the discharge hole of the coating valve is connected with the coating die head.
3. The coating device for adjusting the head surface density of the multi-segment gap pole piece according to claim 1, wherein: the first diaphragm valve is used for controlling the pressure in the first return branch pipe.
4. The coating device for adjusting the head surface density of the multi-segment gap pole piece according to claim 1, wherein: the second diaphragm valve is used for controlling the pressure in the second return branch pipe.
5. The coating device for adjusting the surface density of the head part of the multi-segment gap pole piece according to claim 1, wherein: the other end of the backflow slurry outlet is connected with a small storage tank.
6. The coating device for adjusting the head surface density of the multi-segment gap pole piece according to claim 1, wherein: the feed conduit is for the entry of a feed slurry.
7. The coating device for adjusting the surface density of the head part of the multi-segment gap pole piece according to claim 1, wherein: when the backflow reversing valve is in a first state, a feed port of the backflow reversing valve is communicated with the first backflow branch pipe; and when the backflow reversing valve is in the second state, the feed inlet of the backflow reversing valve is communicated with the second backflow branch pipe.
8. The coating device for adjusting the surface density of the head part of the multi-segment gap pole piece according to claim 1, wherein: the backflow reversing valve adopts a pneumatic reversing ball valve.
9. The coating device for adjusting the surface density of the head part of the multi-segment gap pole piece according to claim 1, wherein: the inner diameter of the feeding pipeline is larger than the inner diameters of the first return branch pipe and the second return branch pipe.
10. The coating device for adjusting the head surface density of the multi-segment gap pole piece according to claim 1, wherein: the pressure in the first return branch pipe is different from the pressure in the second return branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063486.2U CN218872675U (en) | 2022-11-18 | 2022-11-18 | Coating device for adjusting surface density of head part of multi-segment gap pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063486.2U CN218872675U (en) | 2022-11-18 | 2022-11-18 | Coating device for adjusting surface density of head part of multi-segment gap pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218872675U true CN218872675U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223063486.2U Active CN218872675U (en) | 2022-11-18 | 2022-11-18 | Coating device for adjusting surface density of head part of multi-segment gap pole piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN218872675U (en) |
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2022
- 2022-11-18 CN CN202223063486.2U patent/CN218872675U/en active Active
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