Machine trim press having counterbalance features
US6067886A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9473
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In accordance with one aspect of this invention an improved trim press is taught for use in separating molded articles from a web of material. The trim press includes a frame, a drive motor carried by the frame, a first platen carried by the frame, and a second platen carried by the frame and configured to be moved in reciprocation relative to the first platen. A first flywheel assembly is provided on the trim press having a weight with an eccentric mass, the weight being driven in rotation by the motor and coupled to drive the second platen via at least one kinematic linkage. The trim press also includes a second flywheel assembly having a weight with an eccentric mass, the weight being driven in rotation by the motor and coupled to drive the second platen via at least one kinematic linkage. In operation, the first flywheel assembly and the second flywheel assembly are constructed and arrange such that the eccentric mass of the associated weight on the first flywheel assembly is positioned in mirror image with the eccentric mass of the associate weight of the second flywheel assembly, the first and the second flywheel assemblies being driven in counter rotation so as to substantia…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.