Cutting device, cutting method, and cutting apparatus

Patent metadata

Field	Value
Publication number	US-12304098-B2
Application number	US-202418911266-A
Country	US
Kind code	B2
Filing date	Oct 10, 2024
Priority date	Apr 12, 2022
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

Provided are a cutting device, a cutting method, and a cutting apparatus. The cutting device includes a base; a pair of cutting blades, mounted to the base; a drive mechanism, configured to drive the pair of cutting blades to close or open to each other in a first direction; and an adjusting mechanism, configured to drive at least a portion of the base to undergo elastic deformation in a second direction before or during an opening process of the pair of cutting blades driven by the drive mechanism, so as to form a clearance between the pair of cutting blades in the second direction, wherein the second direction is a movement direction of a cutting material and intersects with the first direction.

First claim

What is claimed is:

1. A cutting device, comprising
a base;
a pair of cutting blades, mounted on the base;
a drive mechanism, configured to drive the pair of cutting blades to close or open to each other in a first direction; and
an adjusting mechanism, configured to drive at least a portion of the base to undergo elastic deformation in a second direction before or during an opening process of the pair of cutting blades driven by the drive mechanism, so as to form a clearance between the pair of cutting blades in the second direction, wherein the second direction is a movement direction of a cutting material and intersects with the first direction,
wherein the base comprises a first base body and a second base body, and at least a portion of the first base body is capable of moving along the second direction relative to the second base body, the pair of cutting blades comprise a first cutting blade and a second cutting blade, the first cutting blade is provided on the first base body and the second cutting blade is provided on the second base body, the adjusting mechanism is configured to enable at least a portion of the first base body to undergo elastic deformation relative to the second base body along the second direction before or during the opening process of the pair of cutting blades driven by the drive mechanism, thereby forming the clearance between the first cutting blade and the second cutting blade along the second direction.

2. The cutting device according to claim 1 , wherein the second direction is perpendicular to the first direction.

3. The cutting device according to claim 1 , wherein the first base body comprises a first portion and a second portion; the first portion can undergo elastic deformation relative to the second base body along the second direction, and the second portion is connected to the second base body; and the first cutting blade is arranged on the first portion.

4. The cutting device according to claim 3 , wherein at least one gap, which can undergo elastic deformation along the second direction, is provided between the first portion and the second portion; and the adjusting mechanism is configured to adjust the elastic deformation of the gap.

5. The cutting device according to claim 4 , wherein the gap generally extends along a third direction, and the third direction is perpendicular to the second direction and the first direction.

6. The cutting device according to claim 4 , wherein the first base body comprises at least two first portions; the first portions are arranged along a third direction; and the third direction is perpendicular to the second direction and the first direction.

7. The cutting device according to claim 4 , wherein the first portion is provided with a guide hole, and the cutting device further comprises:
a guide rod, extending in the first direction and slidably inserted through the guide hole,
wherein the first cutting blade is fixed to the guide rod.

8. The cutting device according to claim 7 , wherein the gap comprises interconnected straight segment and curved segment; the straight segment extends along a third direction, the third direction is perpendicular to the second direction and the first direction; the straight segment and the curved segment are alternately arranged along the third direction; and a center of the guide hole coincides with a circle center of the curved segment.

9. The cutting device according to claim 8 , wherein an extension line of the straight segment passes through the center of the guide hole.

10. The cutting device according to claim 3 , wherein the pair of cutting blades comprises the first cutting blade and the second cutting blade; the first cutting blade is connected to the first portion along the first direction in a moving manner; and the second cutting blade is fixed to the second base body.

11. The cutting device according to claim 3 , wherein the first portion is provided with a weakened part.

12. The cutting device according to claim 11 , wherein the weakened part comprises multiple through holes, with each through hole extending along a third direction, the third direction is perpendicular to the second direction and the first direction; and the multiple through holes are arranged along the second direction.

13. The cutting device according to claim 3 , wherein the adjusting mechanism is mounted between the first portion and the second portion.

14. The cutting device according to claim 13 , wherein the adjusting mechanism comprises a piezoelectric ceramic actuator.

15. A cutting method, comprising:
driving a pair of cutting blades of a cutting device to close to each other along a first direction to cut a material strip, the pair of cutting blades are mounted on a base of the cutting device, wherein the base comprises a first base body and a second base body, at least a portion of the first base body is capable of moving along the second direction relative to the second base body, the pair of cutting blades comprise a first cutting blade and a second cutting blade, the first cutting blade is provided on the first base body and the second cutting blade is provided on the second base body;
driving the pair of cutting blades to open in the first direction; and
driving at least a portion of the first base body to undergo elastic deformation relative to the second base body along the second direction before or during an opening process of the pair of cutting blades to form a clearance between the first cutting blade and the second cutting blade along the second direction,
wherein the second direction is a movement direction of a cutting material and intersects the first direction.

16. A cutting apparatus, comprising:
a conveying device, configured for conveying an electrode sheet; and
a cutting device configured for cutting the electrode sheet, wherein the cutting device comprises:
a base;
a pair of cutting blades, mounted on the base;
a drive mechanism, configured to drive the pair of cutting blades to close or open to each other in a first direction; and
an adjusting mechanism, configured to drive at least a portion of the base to undergo elastic deformation in a second direction before or during an opening process of the pair of cutting blades driven by the drive mechanism, so as to form a clearance between the pair of cutting blades in the second direction, wherein the second direction is a movement direction of a cutting material and intersects with the first direction,
wherein the base comprises a first base body and a second base body, and at least a portion of the first base body is capable of moving along the second direction relative to the second base body, the pair of cutting blades comprise a first cutting blade and a second cutting blade, the first cutting blade is provided on the first base body and the second cutting blade is provided on the second base body, the adjusting mechanism is configured to enable at least a portion of the first base body to undergo elastic deformation relative to the second base body along the second direction before or during the opening process of the pair of cutting blades driven by the drive mechanism, thereby forming the clearance between the first cutting blade and the second cutting blade along the second direction.

17. The cutting device according to claim 16 , wherein the first base body comprises a first portion and a second portion; the first portion can undergo elastic deformation relative to the second base body along the second direction, and the second portion is connected to the second base body; and the first

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• Shi Yunru
• Wen Zhihua

Classifications

• H01M4/04

  Processes of manufacture in general · CPC title

• B26D7/2614

  Means for mounting the cutting member · CPC title

• B26D2007/2685

  flexible mounting means · CPC title

• B26D7/0006

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

• B26D5/08

  Means for actuating the cutting member to effect the cut · CPC title