Process and apparatus for producing an endless seamed belt
US6457392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | May 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/944
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A novel method and apparatus for producing an endless flexible seamed belt using a punch and die is disclosed. The punch and die have patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies. Belt material is positioned between a stock gap between the punch and die and the force generating assembly is activated to provide the cutting force. Once the belt material is cut, the cutting force is removed and the force generating assembly returns to its retracted position. There are two cutting edges on the punch and die so that a first end of one belt and a second end of another belt are formed in a single cutting operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.