To precisely support a sheet material without producing displacement and a seam even with pliable sheet material thin paper, etc., by providing a pressing plate to clamp and support the sheet material by pressing it on a mold plate by positioning it against the mold plate free to approach and part from it.

A sheet material 11 is held and supported along an overall region from which refuse is removed between a lower surface of a pressing plate 27 of a template 24 and a mold plate 41 of a female mold 22 as the lower surface of the pressing plate 27 of the template 24 makes contact with an upper surface of the sheet material 11 and a coil spring 31 is compressed as it is further lowered. Consequently, even in the case when the sheet material 11 is pliable paper such as thin paper, etc., it is possible to certainly support it without producing a seam and displacement of refuse is never slipped. Thereafter, a contact part 36 of a punching member 25 hits a central part of refuse, pushes down refuse and extracts and drops it over a projection part 45 of the mold plate 41.