Machine for roughing side walls portions of a shoe
US5101528A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1990 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Nov 29, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/50209
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The speed of rotation of a side wall roughing tool (250) can be varied in accordances with the speed of relative movement between the tool (250) and side wall portions of the shoe being roughed (the traverse speed of the tool). To this end, a flow control arrangement (F) is provided including a plurality of flow control valves (CV1, CV2), the arrangement being such that, with the rate of flow through each such valve set, the operator can select one or other to be switched into the hydraulic circuit by which a hydraulic motor (232) is driven, said motor effecting rotation of the tool. The selection of one or other flow control valve (CV1, CV2) is made by the operator during the digitishing of the path of the tool relative to the shoe and such information is stored together with the programmed instruction, in the form of digitised corrdiante axis values, for said path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.