A marking tool drive system for a draughting or similar type of machine.

摘要

This invention describes improvements made to the working head of a draughting machine with a working surface which carries a strip material on which the machine is to operate. The working head includes an improved drive system as operative components for the working tools; said components are of the electromagnetic type and comprise a coil which almost completely surrounds the working tool incorporated into the electromagnet core. These components make it possible to move the tools along their own axis which are guided by two end bushings whereby means make it possible to remove said tools from or put in contact with the strip material which is placed on the working surface on reception of signals delivered from a controller. Said working head is fitted on a carriage which has a transmission system making it possible to move the head over the working surface in X- and Y-direction;