Electrode cutting device

Patent metadata

Field	Value
Publication number	US-12583140-B2
Application number	US-202117914224-A
Country	US
Kind code	B2
Filing date	Nov 10, 2021
Priority date	Nov 13, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An apparatus for cutting an electrode of a battery includes: an all-in-one cutting cartridge module including an upper knife and a lower knife; and a cradle where the all-in-one cutting cartridge module is mounted. The all-in-one cutting cartridge module includes a module frame and an upper knife holding unit which fixes and supports the upper knife and is supported in a manner that is vertically slidable on the module frame, and the lower knife is coupled to a lower portion of the module frame to face the upper knife. The upper knife and the lower knife are installed at the module cartridge, it is possible to quantitatively adjust the clearance and straightness of the upper knife and the lower knife in advance.

First claim

The invention claimed is:

1 . An apparatus for cutting an electrode, the apparatus comprising:
a cutting cartridge module including an upper knife and a lower knife; and a cradle having a vertically extending side including an insertion guide configured to guide insertion of the cutting cartridge module, wherein the cutting cartridge module is coupled to the cradle, wherein, the cutting cartridge module includes a fixed module frame fixed on the cutting cartridge module and an upper knife holding unit which supports the upper knife and is configured to be slidable on the fixed module frame, wherein the lower knife is coupled to a lower portion of the fixed module frame, the lower knife positioned to face the upper knife, and wherein a shank unit is coupled to an upper portion of the upper knife holding unit, a movable shank block is coupled to an upper portion of the cradle, the shank unit is coupled to the shank block, and the upper knife holding unit is configured to be moved by movement of the shank block.

2 . The apparatus of claim 1 , wherein;
the cradle includes an insertion passage, and the cutting cartridge module is configured to be inserted into the cradle through the insertion passage.

3 . The apparatus of claim 2 , wherein;
a surface of the cutting cartridge module is coupled to a surface of the cradle by a coupling member.

4 . The apparatus of claim 1 , wherein;
the shank unit includes a shank and a shank shaft, and a passage hole, through which the shank and the shank shaft of the shank unit pass, is formed on an upper portion of the fixed module frame.

5 . The apparatus of claim 1 , wherein;
the upper knife holding unit is slidably supported on a side portion of the fixed module frame by a cross roller guide.

6 . The apparatus of claim 5 , wherein;
the cross roller guide includes a first guide rail coupled to the fixed module frame, and a second guide rail coupled to the upper knife holding unit.

7 . The apparatus of claim 6 , wherein;
two pairs of cross roller guides are installed between the upper knife holding unit and the fixed module frame, a first guide rail of each pair is positioned at an external side of the fixed module frame in a width direction, and a second guide rail of each pair is positioned at an internal side of the fixed module frame in the width direction.

8 . The apparatus of claim 1 , wherein;
the upper knife holding unit is slidably supported on the fixed module frame by a guide master.

9 . The apparatus of claim 1 , wherein;
the upper knife includes a taper portion in which a blade of the upper knife slants in a first direction toward a center of the upper knife in a horizontal direction.

10 . The apparatus of claim 9 , wherein;
the taper portion is formed of multi-stage taper parts having different tilt angles, and
wherein the tilt angle of the multi-stage taper parts gradually decreases toward the center of the upper knife in the horizontal direction.

11 . The apparatus of claim 1 , wherein;
a stripper, which separates the electrode from the upper knife, is installed on an electrode inflow route between the upper knife and the lower knife.

12 . The apparatus of claim 1 , wherein;
a surface block of the upper knife is coupled to a surface of the upper knife holding unit.

13 . The apparatus of claim 1 , wherein:
the upper knife is configured to reciprocate vertically with respect to the lower knife.

Assignees

• Lg Energy Solution Ltd

Inventors

• Lee Hyeon Jin
• Park Sin Young
• Park Dong Hyeuk
• Kim Sang Wook

Classifications

• H01M10/0404

  Machines for assembling batteries · CPC title

• B26D5/02

  Means for moving the cutting member into its operative position for cutting · CPC title

• B26D5/06

  by electrical means · CPC title

• H01M4/04

  Processes of manufacture in general · CPC title

• B26D7/0006

  Means for guiding the cutter (for hand knives B26B29/06; for band-knives B26D1/54) · CPC title