To solve such a problem that the transfer of an intermediate material from a hot press to a cold press having to be made most preferential from an aspect of molding is delayed according to circumstances by the delay or the like of construction work not only to deteriorate the quality of a laminated sheet but also to bring about the lowering of productivity.

A loader is equipped with a first feed means for transferring a carrier plate loaded with the laminating material from a loader to the hot press and a second feed means for transferring a carrier plate loaded with the intermediate material from the hot press to the cold press. The second feed means of the loader is constituted so as to be capable of performing the locking and non-locking with the carrier plate in a freely selective manner.