To supply a work heated/formed at a pre-process working machine to a post-process working machine while effectively holding a temp in a two process continuous device.

A device is provided with a heating device 14 to hold a temp. of a work B sent from a pre-process with a heat generating body 18 arranged to an inner peripheral wall face by arranging a second work transfer means 9 in front of a work transfer means 7 and covering at least an upper half part near the second work transfer means 9 in the transfer direction of the work B and a blower 23 to shield the opening end part in front/back of the heating device 14 by an air curtain.