CN207254685U - A kind of lithium ion battery coating machine backflow of slurry device - Google Patents
A kind of lithium ion battery coating machine backflow of slurry device Download PDFInfo
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- CN207254685U CN207254685U CN201721050295.9U CN201721050295U CN207254685U CN 207254685 U CN207254685 U CN 207254685U CN 201721050295 U CN201721050295 U CN 201721050295U CN 207254685 U CN207254685 U CN 207254685U
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- slurry
- buffer tank
- backflash
- diaphragm pump
- coating machine
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Abstract
It the utility model is related to lithium battery slurry production technical field, particularly a kind of lithium ion battery coating machine backflow of slurry device, including slurry buffer tank, the slurry buffer tank is connected by pipeline with pneumatic diaphragm pump, the pneumatic diaphragm pump is connected by slurry return pipe with backflash, the backflash is connected by slurry return pipe with die head, and the die head is connected by screw pump with slurry buffer tank, and the pneumatic diaphragm pump is connected by compressed air pipe with PLC controller.With the above structure, the utility model controls pneumatic diaphragm pump and solenoid valve by the level sensor in backflash, realize automatic cycle of the slurry in coater head, effectively avoid slurry gas in cyclic process and be mixed into, improve the qualification rate of coating pole piece.
Description
Technical field
Lithium battery slurry production technical field is the utility model is related to, particularly a kind of lithium ion battery coating machine slurry returns
Flow device.
Background technology
The battery core of lithium battery includes pole piece, is coated with slurry on pole piece, and pole piece is divided into positive plate and negative plate, on positive plate
Coated with anode sizing agent, cathode size is coated with negative plate, during lithium battery is produced, after the completion of slurry preparation, is made
It is coated to coating machine on pole piece.
203678638 U of Chinese utility model patent CN disclose a kind of lithium battery pole piece coating machine slurry conveying device,
Slurry is conveyed for the applicator roll to coating machine, is related to a kind of feeding mouth and is arranged on lithium battery pole in hopper under the slurry page
Piece coating machine slurry conveying device, this slurry conveying device is included immediately below the applicator roll, for holding the material of slurry
Groove, is provided with hopper for stirring slurry to prevent the blender of slurry sediment, hopper is equipped with what is be connected with fluid-conveying pipe
Feeding mouth, this slurry conveying device further include the feeding engine for slurry to be sent into hopper from the feeding mouth, the feeding mouth
In setting and hopper under slurry liquid face.Feeding mouth is arranged in hopper under slurry liquid face, in fluid-conveying pipe and hopper
It is connection, therefore need to only controls feeding engine accurately to control the liquid level in hopper to the hydraulic pressure that slurry provides, starches at the same time
Material nor fall into hopper, therefore slurry is also not easy to be splashed to outside hopper from top to down.
The content of the invention
The utility model technical issues that need to address are to provide one kind and avoid being mixed into slurry coater head cyclic process
The lithium battery coating machine backflow of slurry device of gas.
To solve above-mentioned technical problem, a kind of lithium ion battery coating machine backflow of slurry device of the utility model, bag
Slurry buffer tank is included, the slurry buffer tank is connected by pipeline with pneumatic diaphragm pump, and the pneumatic diaphragm pump passes through slurry
Return duct is connected with backflash, and the backflash is connected by slurry return pipe with die head, and the die head passes through screw pump
It is connected with slurry buffer tank, the pneumatic diaphragm pump is connected by compressed air pipe with PLC controller.
Further, the slurry buffer tank upper end is provided with pressure balance gas interface, and the slurry buffer tank upper end leads to
Excess pressure equalizing main is connected with backflash.
Further, it is provided with agitating paddle in the slurry buffer tank.
Further, solenoid valve, the reflux are provided with the pipeline between the slurry buffer tank and pneumatic diaphragm pump
Liquid level sensor is provided with groove, the solenoid valve, liquid level sensor are all electrically connected with PLC controller.
Further, the liquid level sensor in the backflash is located at backflash 1/2~2/3.
With the above structure, the utility model controls pneumatic diaphragm pump and electricity by the level sensor in backflash
Magnet valve, realize automatic cycle of the slurry in coater head, effectively avoids slurry gas in cyclic process and is mixed into, improves
The qualification rate of coating pole piece；In addition, oil system slurry is solved by using nitrogen well as the Balance Air between each system
Expect the contact with air, abnormal appearance problem is coated with caused by avoiding slurry water suction, not only control effect is good, simple in structure,
And it is easily achieved on-line automatic control and transmission.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structure diagram of lithium ion battery coating machine backflow of slurry device of the utility model.
In figure：1 is slurry buffer tank, and 2 be screw pump, and 3 be die head, and 4 be backflow of slurry pipeline, and 5 be backflash, and 6 be liquid
Level sensor, 7 be pneumatic diaphragm pump, and 8 be pressure-equalizing passageway, and 9 be solenoid valve, and 10 be agitating paddle, and 11 connect for pressure balance gas
Mouthful, 12 be PLC controller
Embodiment
As shown in Figure 1, a kind of lithium ion battery coating machine backflow of slurry device of the utility model, including slurry buffer tank
1, the slurry buffer tank 1 is connected by pipeline with pneumatic diaphragm pump 7, the pneumatic diaphragm pump 7 by slurry return pipe 4 with
Backflash 5 is connected, and the backflash 5 is connected by slurry return pipe with die head 3, and the die head 3 passes through screw pump 2 and slurry
Material buffer tank 1 is connected, and the pneumatic diaphragm pump 7 is connected by compressed air pipe with PLC controller 12.
Further, 1 upper end of slurry buffer tank is provided with pressure balance gas interface 11, on the slurry buffer tank 1
End is connected by pressure-equalizing passageway 8 with backflash 5, and agitating paddle 10 is provided with the slurry buffer tank 1.
Further, it is provided with solenoid valve 9 on the pipeline between the slurry buffer tank 1 and pneumatic diaphragm pump 7, described time
Liquid level sensor 6 is provided with chute 5, the solenoid valve 9, liquid level sensor 6 are all electrically connected with PLC controller 12.Described time
Liquid level sensor 6 in chute 5 is located at backflash 1/2~2/3.
In slurry loop processes, slurry is entered by buffer tank 1 through screw pump 2, die head 3 and backflow of slurry pipeline 4 to flow back
In groove 5, when the liquid level in backflash 5 reaches level sensor 6, PLC control system opens comperssed air starting pneumatic diaphragm
Pump 7, while solenoid valve 9 is opened, slurry is back in slurry buffer tank 1 through diaphragm pump 7.In addition, backflash 5 and slurry buffer tank
1 is connected by pressure-equalizing passageway 8, it is ensured that backflash 5 is in equilibrium state, whole reflux with the pressure in buffer tank 1
System uses nitrogen, and as balanced gas, it is contact of the slurry with moisture in air to avoid oil.
The operation principle of the utility model is as follows：Coating machine backflow of slurry device according to present embodiment,
Slurry back up through liquid level sensor, PLC control system, pneumatic diaphragm pump and electromagnetism between backflash and slurry buffer tank
Valve, which is realized, carries out on-line automatic control, its principle has：1) when the liquid level of slurry in backflash reaches liquid level sensor device, liquid level
The confession that sensor by PLC controller, can be compressed air gives disconnection, so as to control the startup of pneumatic diaphragm pump with stopping
Only, solenoid valve is at the same time opened or closed, realizes the automatic back flow of slurry；2) interface between backflash and slurry buffer tank
Its bottom is respectively positioned on, and liquid level sensor is located at the first half of backflash 1/2, during backflow of slurry, reflux line interface
The first half holds certain slurry all the time, effectively avoids being mixed into for gas；3) by using nitrogen as pressure balance gas
Body, it is contact of the slurry with air effectively to solve oil, avoids slurry water suction and causes coating abnormal appearance.
Although the foregoing describing specific embodiment of the present utility model, those skilled in the art should manage
Solution, these are merely illustrative of, and various changes or modifications can be made to present embodiment, without departing from the original of the utility model
Reason and essence, the scope of protection of the utility model are only limited by the claims that follow.
Claims (5)
1. a kind of lithium ion battery coating machine backflow of slurry device, including slurry buffer tank, it is characterised in that：The slurry caching
Tank is connected by pipeline with pneumatic diaphragm pump, and the pneumatic diaphragm pump is connected by slurry return pipe with backflash, described
Backflash is connected by slurry return pipe with die head, and the die head is connected by screw pump with slurry buffer tank, the gas
Dynamic diaphragm pump is connected by compressed air pipe with PLC controller.
A kind of 2. lithium ion battery coating machine backflow of slurry device described in accordance with the claim 1, it is characterised in that：The slurry
Buffer tank upper end is provided with pressure balance gas interface, and the slurry buffer tank upper end is connected by pressure-equalizing passageway with backflash
Connect.
A kind of 3. lithium ion battery coating machine backflow of slurry device described in accordance with the claim 1, it is characterised in that：The slurry
Agitating paddle is provided with buffer tank.
A kind of 4. lithium ion battery coating machine backflow of slurry device described in accordance with the claim 1, it is characterised in that：The slurry
Solenoid valve is provided with pipeline between buffer tank and pneumatic diaphragm pump, liquid level sensor is provided with the backflash, it is described
Solenoid valve, liquid level sensor are all electrically connected with PLC controller.
5. according to a kind of lithium ion battery coating machine backflow of slurry device described in claim 4, it is characterised in that：The reflux
Liquid level sensor in groove is located at backflash 1/2~2/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050295.9U CN207254685U (en) | 2017-08-22 | 2017-08-22 | A kind of lithium ion battery coating machine backflow of slurry device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050295.9U CN207254685U (en) | 2017-08-22 | 2017-08-22 | A kind of lithium ion battery coating machine backflow of slurry device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207254685U true CN207254685U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721050295.9U Active CN207254685U (en) | 2017-08-22 | 2017-08-22 | A kind of lithium ion battery coating machine backflow of slurry device |
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| CN (1) | CN207254685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380456A (en) * | 2018-04-30 | 2018-08-10 | 中航锂电（江苏）有限公司 | A kind of lithium ion battery coating machine size circulations device |
-
2017
- 2017-08-22 CN CN201721050295.9U patent/CN207254685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380456A (en) * | 2018-04-30 | 2018-08-10 | 中航锂电（江苏）有限公司 | A kind of lithium ion battery coating machine size circulations device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 213200 Jiangdong Avenue 1, Jintan District, Jiangsu, Changzhou Patentee after: AVIC lithium Technology Co.,Ltd. Address before: 213200 Jiangdong Avenue 1, Jintan District, Jiangsu, Changzhou Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC lithium Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. |