AUTOMATIC WIRE INSERTING APPARATUS

摘要

An automatic wire inserting apparatus (1) for inserting a wire electrode (2) into upper side and lower side wire guides is provided with a means for annealing and fusing the wire electrode. The upper side and lower side energizing electrodes (20, 22) for supplying the wire electrode with a heating current are provided on the upper side wire guide (3). A vertically movable guide pipe (24) which the wire electrode can penetrate is provided between the upper side and lower side energizing electrodes. A heat insulating unit (28) having a through hole (50) which the guide pipe can pass through is provided between the upper side and lower side energizing electrodes. A cooling fluid supplying device (26) supplies a cooling fluid for cooling the wire electrode in the guide pipe. A blocking fluid supplying device (34) supplies a blocking fluid which prevents the cooling fluid from flowing into the through hole in the heat insulating unit.