Automatic saw chain grinding machine, has grinding disc positioning device and saw chain drive controlled by two connected switches

摘要

The positioning device for the grinding disc (6) is controlled by a first switch (2) and the saw chain drive (16) is controlled by a second switch electrically connected to the first switch. The positioning device comprises a first cam disc (1) with a control part (5) for cooperating with the first switch. The drive comprises a second cam disc (18) with a control part (18a) for cooperating with the second switch. The drive device moves the saw chain (11) along a support (21) and a device is included for fixing the saw chain into position relative to this support.