Patent ID: 9630372
Date: 2017-04-25
CPC Classifications: B29C,B29D,B29K,B29L,B31B,B31F

Claim:
1. An apparatus for producing a pressed paper piece by deep drawing a sheet-like blank that is primarily made of paper in use of a punch and a die, the apparatus comprising: means for maintaining a predetermined gap S between a lower surface of a first blank holder and an upper surface of the die during deep drawing, with the first blank holder being arranged in an outer peripheral region of a process portion of the blank, and a second blank holder having pressing means being arranged in a radially inner region in the process portion of the blank, wherein the second blank holder has a lower surface protruding more than the lower surface of the first blank holder, with a difference Z therebetween being S−T≦Z<S, where T is the thickness of the blank.