Patent · US Expired

Apparatus for grinding cutting edges of knives in tobacco cutting machines

US4718198A · kind A · utility

2Cited by

7References

9Claims

0Family size

Assignee

Hauni-Werke Korber & Co. K.G. · DE

Inventors

Werner Komossa · Bornsen, DE
Nikolaus Hausler · Oststeinbek, DE

Key dates

Filing date	Jan 23, 1985
Grant date	Jan 12, 1988
Priority date	—
Expiry date	Jan 23, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B3/46
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The straight of undulate cutting edges of elongated knives on the rotary knife holder in a tobacco shredding machine are ground by a driven grinding wheel, whose axis makes a small acute angle with the axis of the holder, while the grinding wheel is rocked back and forth about an axis which is parallel to the axis of the grinding wheel and is located in a second plane parallel to a first plane which is tangential to the cylindrical path of the cutting edges. If the axial length of the grinding wheel is less than the length of the cutting edges, the grinding wheel is advanced stepwise in the axial direction of the holder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.