Drawing machine
US7661285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Sep 19, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C1/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drawing machine includes a plate unit, a clamping device, a transmit member, a driving device and a cam. The transmit member includes a following roller. The driving device includes a main linkage inserted through the plate unit and having first and second ends. The cam includes first and second cam paths, with the first cam path disposed between two sides of the second cam path. When the cam is in a first position, the distances between the first cam path and two sides of the second cam path are different. When the cam is in a second position, the distances between the first cam path and two sides of the second cam path are equal. The following roller drives the main linkage to pivot, with the clamping device driven to clamp a rod or pipe. The plate unit is driven by the second cam path and reciprocates along the cam axially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.