WIRE TREATING METHOD IN WIRE-CUT ELECTRIC DISCHARGE MACHINING APPARATUS AND WIND-UP DEVICE USED IN THE METHOD THEREOF

PURPOSE:To form a wire in a compact coil-like shape in order to facilitate the handling thereof, by winding up a treated wire which has been clamped in its leading end part between opposed clamping members, and thereafter by separating the clamping members from each other to drop the wire into a coil box for treatment. CONSTITUTION:The leading end of a wire 27 fed to rollers is set between the flat front end faces 69 of clamping members 41, 43, and after the position of the leading end thereof is set, the clamping ember 41 is advanced by a cylinder 45 to clamp the leading end of the wire 27 between the flat front end faces 69 of the clamping members 41, 43, while wind-up parts 53 of the clamping members whose small diameter truncated conical cylindrical parts are opposed to each other, form a reel section. Then, a wind-up motor 67 is driven to start the wind-up of the wire 27, and a control means actuates a drive device 57 to move the reel section back and forth to wind up the wire in order. Then the wind-up to a predetermined amount is detected by a sensor or the like to stop the drive device and the like, and then the cylinder 45 returns the clamping member 41 to its original position. Accordingly, the coil of the wire 27A is dropped into a storage box 39 through a hole 71 in a base 47 for treatment.