| 摘要 |
A device for punching, stamping and/or shaping flat elements ( 29 ) includes a base body ( 1 ) with a table ( 18 ) and support ( 26 ) for the flat element ( 29 ), and a base plate ( 17 ), which supports a punch ( 24 ), and which is advanced with a drive ( 4,5 ) toward the support ( 26 ) and into a working station (II), bringing the punch ( 24 ) into contact with the support ( 26 ). A large number of successive, very short, highly precise, punching strokes make punched holes or stampings. Short stop periods and short clock times are used for fast moving flat elements ( 29 ). Transfer apparatus ( 9, 7; 35; 43; 46 ) coupled between the drive ( 4,5 ) and the base plate ( 17 ) move the base plate ( 17 ) without building up pressure from a position of rest (I) The punch ( 24 ) is not in contact with the support ( 26 ), up to immediately in front of working position (II). The base plate ( 17 ) is then moved into working position (II) while producing a high pressure between the base plate ( 17 ) and the flat element ( 29 ). During further operation of the drive ( 4,5 ), the base plate ( 17 ) is returned to the position of rest (I,II) without building up pressure. |
