Patent ID: 6722274
Filing Date: 2004-04-20
Classification: B41F

Abstract:
A screen printing gripper comprising a screen printing gripper body supporting a gripping and tensioning assembly supporting, in turn, a gripping element to grip an edge portion of a fabric material to be tensioned on a frame, wherein said screen printing gripper further comprises a pneumatic device for lowering said gripping and tensioning assembly and a bottom abutment cam operating as an end of stroke element for a bearing foot element rigid with said gripping and tensioning assembly, said abutment cam being designed for providing a variable lowering stroke of said gripping and tensioning assembly depending on a withdrawn stroke of said gripping element, to provide a variable lowering movement of said gripping and tensioning assembly varying depending on a tensioning stroke of said fabric material, said lowering movement comprising a main lowering movement and an additional rotary lowering movement.