Apparatus for cleaning rolling roll for electrode and cleaning method

Patent metadata

Field	Value
Publication number	US-11577290-B2
Application number	US-202017059624-A
Country	US
Kind code	B2
Filing date	Jan 23, 2020
Priority date	Jan 25, 2019
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

The present invention relates to an electrode rolling roll cleaning apparatus for removing pollutants on an electrode rolling roll, the apparatus comprising: a cleaning part for cleaning a rolling roll by bringing the rolling roll into contact with a cleaning member; an air spraying part for spraying air onto the rolling roll; a heating part for applying heat to the rolling roll so as to dry the rolling roll; and a scraper part for mechanically removing a cleaning liquid and foreign substances attached to the rolling roll.

First claim

The invention claimed is:

1. An apparatus for cleaning an electrode rolling roll by removing contaminants from the electrode rolling roll, the apparatus comprising:
a cleaning part configured to bring the rolling roll into contact with a cleaning member to thereby clean the rolling roll;
an air spray unit configured to spray air to the rolling roll;
a heating unit configured to dry the rolling roll by applying heat to the rolling roll; and
a scraper unit configured to mechanically remove cleaning liquid and foreign substances attached to the rolling roll,

wherein the scraper unit comprises:
a scraping pad having a tip portion formed therein adapted to contact the surface of the rolling roll to thereby scrape off foreign materials attached to the surface of the rolling roll;
a moving rail configured to provide a path for reciprocating the scraper unit in a front-rear direction; and
a body unit having a moving member configured to move a pad holder and the scraper unit adapted to fix the scraping pad along the moving rail, at an external side, and having a motor configured to provide power for driving the moving member, at an inside, and
wherein the scraper unit is configured to scrape off foreign materials while the tip portion repeatedly contacts and separates from the rolling roll at regular rolling distance intervals, as the scraper unit reciprocates on the moving rail by the moving member.

2. The apparatus of claim 1 , wherein the cleaning part comprises:
a supply roll configured to supply the cleaning member;
a cleaning unit configured to bring the cleaning member into contact with the rolling roll to thereby clean a surface of the rolling roll;
a cleaning liquid spray unit configured to spray cleaning liquid onto the cleaning member; and
a winding roll configured to recover the cleaning member having cleaned the surface of the rolling roll.

3. The apparatus of claim 2 , wherein the cleaning member is non-woven fabric.

4. The apparatus of claim 2 , wherein the cleaning liquid is at least one selected from the group consisting of water and alcohol-based compounds.

5. The apparatus of claim 2 , wherein a moving direction of the cleaning member is a direction opposite to a rotational direction of the rolling roll.

6. The apparatus of claim 1 , wherein the scraper unit is located between the cleaning part and an air spray unit.

7. The apparatus of claim 1 , wherein the scraper unit is positioned next to the heating unit.

8. The apparatus of claim 1 , wherein the tip portion is V-shaped, U-shaped or “␣”-shaped.

9. The apparatus of claim 1 , wherein two or more scraper units are installed within the apparatus.

10. The apparatus of claim 1 , wherein the scraper unit is configured to scrape off foreign materials by bringing the tip portion into contact with the rolling roll by moving in a rolling roll direction each time when the rolling roll rolls the electrode by 250 to 350 m.

11. The apparatus of claim 1 , wherein the tip portion is in contact with the rolling roll for 5 to 15 seconds.

12. The apparatus of claim 1 , wherein the air spray unit is located next to the heating unit.

13. The apparatus of claim 1 , further comprising: a foreign material collection container,
wherein the foreign material collection container is located below an upper roll and a lower roll constituting the rolling roll.

Assignees

• Lg Chemical Ltd
• Lg Energy Solution Ltd

Inventors

• Park Kun Ha
• Yang Seung Gi
• Lee Ung Ju

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• B08B5/023 Primary

  Cleaning travelling work · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• B08B7/0071

  by heating (B08B7/0035 takes precedence) · CPC title

• B21B28/02

  Maintaining rolls in effective condition, e.g. reconditioning · CPC title