| 摘要 |
In a device for fastening perforating rules or blades on rolls (perforating cylinders) in printing machines, the perforating cylinder (26) has at least one receiver groove (25) for a perforating rule (11) in which a clamping strip (10) provided with hydraulic clamping devices can be inserted. Said clamping devices press the perforating rule into frictional engagement with a cheek of the receiver groove. The clamping strip (10) constitutes the cylinder housing for a plurality of pressure pistons (13) which form the movable boundaries of intercommunicating pressure chambers (13') completely filled with a pressure-transmitting medium. The volume occupied by the pressure-transmitting medium can be decreased and subsequently increased by means of a pressure regulator (16). The pressure-transmitting medium used is a thermoplastic which is introduced into the pressure chambers (13', 14) of the clamping strip (10) in the liquid state and hardens after filling to a flexible body.
|
