CN-224208284-U - Spraying device and conveying system of diaphragm

Abstract

The utility model discloses a spraying device and a conveying system for a diaphragm, wherein the spraying device comprises a diaphragm inlet, a diaphragm outlet, a first guide roller, a second guide roller and a bottom roller, the first guide roller is used for leading the diaphragm into the diaphragm inlet, the second guide roller is used for leading the diaphragm out to the diaphragm outlet, the first guide roller and the second guide roller are positioned on the same horizontal plane, the bottom roller is used for guiding the diaphragm from the first guide roller to the second guide roller, the bottom roller is positioned below the first guide roller and the second guide roller, and a space for accommodating a first spraying machine is arranged between the first guide roller and the bottom roller or between the bottom roller and the second guide roller. The spraying device has lower use cost.

Inventors

• Chao Dangan
• Zuo Linyan

Assignees

• 苏州捷力新能源材料有限公司

Dates

Publication Date

20260508

Application Date

20241230

Claims (10)

1. 1. A spray coating device for a diaphragm comprising a diaphragm inlet and a diaphragm outlet, the spray coating device further comprising: A first guide roller for introducing a septum into the septum inlet; The second guide roller is used for leading out the diaphragm to the diaphragm outlet, and the first guide roller and the second guide roller are positioned on the same horizontal plane; The bottom roller is used for guiding the diaphragm from the first guide roller to the second guide roller, the bottom roller is positioned below the first guide roller and the second guide roller, and a space for accommodating a first spraying machine is arranged between the first guide roller and the bottom roller or between the bottom roller and the second guide roller.
2. 2. The spray apparatus of claim 1, wherein a plurality of adjustment rollers are disposed between the bottom roller and the first guide roller, the adjustment rollers including a first adjustment roller and a second adjustment roller, the first adjustment roller being positioned below the first guide roller, the second adjustment roller being positioned below the first adjustment roller.
3. 3. The spray apparatus of claim 2, wherein said bottom roller is positioned directly below said second guide roller such that said diaphragm passes vertically between said bottom roller and said second guide roller.
4. 4. A spray device according to claim 3, wherein the first applicator is located between the bottom roller and the second guide roller, the nozzle of the first applicator being directed towards the diaphragm.
5. 5. The spraying device of claim 4, wherein the distance between the bottom roller and the second guide roller is 80-120cm.
6. 6. The spray apparatus of claim 2, wherein surfaces of said first guide roller, said second guide roller, said bottom roller, and said adjustment roller are coated with a ceramic coating.
7. 7. The spray device of claim 1, further comprising an auxiliary roller located between the second guide roller and the diaphragm outlet.
8. 8. The spray apparatus of claim 7 further comprising a second applicator positioned between the auxiliary roller and the second guide roller, a nozzle of the second applicator facing the diaphragm.
9. 9. A diaphragm conveying system comprising a secondary transverse pulling device and a tertiary transverse pulling device, characterized in that the conveying system further comprises a spraying device according to any one of claims 1 to 8, wherein the spraying device is arranged between the secondary transverse pulling device and the tertiary transverse pulling device, an outlet of the secondary transverse pulling device is communicated with an inlet of the diaphragm, and an inlet of the tertiary transverse pulling device is communicated with an outlet of the diaphragm.
10. 10. The conveying system according to claim 9, wherein the temperature in the secondary transverse drawing device is 110-140 ℃, the air quantity is 20-50m 3 /min, the temperature in the tertiary transverse drawing device is 110-130 ℃, and the air quantity is 15-40m 3 /min.

Description

Spraying device and conveying system of diaphragm Technical Field The utility model belongs to the technical field of diaphragm production, and particularly relates to a diaphragm spraying device and a diaphragm conveying system. Background The diaphragm is one of three main materials in the lithium ion battery, and is directly related to the cycle life, safety, current density and the like of the battery. With the rapid development of modern industry, separator materials are widely used in various fields such as electronics, packaging, optics, etc. The requirements for the surface treatment of the diaphragm are also increasing, and the traditional off-line coating spraying gradually exposes a plurality of defects, such as increased production flow and use cost, for which on-line spraying has been developed, but the current on-line spraying still has the problem of requiring higher use cost, such as the stage from the inlet of the diaphragm to the outlet of the diaphragm during spraying, the diaphragm is always rising, and more electric energy is required to be consumed. Disclosure of utility model In view of the above, the utility model provides a spraying device and a conveying system for a diaphragm, which have lower use cost. In order to achieve the above purpose, the utility model adopts the following technical scheme: A spray coating device for a diaphragm, comprising a diaphragm inlet and a diaphragm outlet, the spray coating device further comprising: A first guide roller for introducing a septum into the septum inlet; the second guide roller is used for leading out the diaphragm to the diaphragm outlet, and the first guide roller and the second guide roller are positioned on the same horizontal plane; The bottom roller is used for guiding the diaphragm from the first guide roller to the second guide roller, the bottom roller is positioned below the first guide roller and the second guide roller, and a space for accommodating a first spraying machine is arranged between the first guide roller and the bottom roller or between the bottom roller and the second guide roller. In a preferred embodiment, a plurality of adjusting rollers are arranged between the bottom roller and the first guide roller, the adjusting rollers comprise a first adjusting roller and a second adjusting roller, the first adjusting roller is located below the first guide roller, and the second adjusting roller is located below the first adjusting roller. In a preferred embodiment, the bottom roller is located directly below the second guide roller such that the diaphragm passes vertically between the bottom roller and the second guide roller. In a preferred embodiment, the first applicator is located between the bottom roller and the second guide roller, with the nozzle of the first applicator facing the diaphragm. In a preferred embodiment, the distance between the bottom roller and the second guiding roller is 80-120cm. Specifically, the distance between the bottom roller and the second guide roller is 100cm. In a more preferred embodiment, the surfaces of the first guide roller, the second guide roller, the bottom roller, and the conditioning roller are coated with a ceramic coating. By arranging the ceramic coating, the friction coefficient of the guide roller, the bottom roller and the adjusting roller and the diaphragm is reduced, and static electricity is reduced. In a preferred embodiment, the spraying device further comprises an auxiliary roller, which is located between the second guide roller and the diaphragm outlet. In a preferred embodiment, the spraying device further comprises a second sprayer located between the auxiliary roller and the second guide roller, the nozzle of the second sprayer facing the diaphragm. The utility model also adopts the following technical scheme: the utility model provides a conveying system of diaphragm, includes secondary violently draws the device and tertiary violently draws the device, conveying system still includes spraying device, spraying device sets up secondary violently draw the device with tertiary violently draw between the device, the export of secondary violently draw the device with diaphragm entry intercommunication, tertiary violently draw the entry of device with the diaphragm export intercommunication. In a preferred embodiment, the temperature in the secondary transverse drawing device is 110-140 ℃, the air quantity is 20-50m 3/min, the temperature in the tertiary transverse drawing device is 110-130 ℃, and the air quantity is 15-40m 3/min. Compared with the prior art, the utility model has the following advantages: According to the spraying device disclosed by the utility model, when the diaphragm is sprayed, the path of the diaphragm firstly passes through the bottom roller by the first guide roller and then passes through the second guide roller by the bottom roller, and the diaphragm can downwards move by virtue of self gravity when passing from the first guide r