Variable end-of-stroke device for the raising and lowering of a pressing arm in a fixed column and rotating platform winding apparatus

Abstract

The present invention refers to a device for raising and lowering a pressing arm in a fixed column and rotating platform winding apparatus. The device comprises a pneumatic cylinder that extends vertically along the column, an arm-holder trolley that can be raised and lowered along said column and connection means between said cylinder and said trolley, that can be moved between hooking points at different heights along the vertical axis of the trolley.

1 . Device for raising and lowering a pressing arm in a fixed column and rotating platform winding apparatus, comprising a pneumatic cylinder that extends vertically along the column, an arm-holder trolley that can be raised and lowered along said column and connection means between said cylinder and said trolley, characterized in that said connection means can be moved between hooking points at different heights along the vertical axis of the trolley.  
     
     
         2 . Device according to  claim 1 , characterized in that said connection means are constituted by screws with wide head that pass through a bored head of the stem of the cylinder and terminate in a screw knob.  
     
     
         3 . Device according to  claim 2 , characterized in that said hooking points are defined by eyelets made in a wall of the trolley and presenting a narrow part in which the screw can be engaged and a widened part through which the head of the screw can pass for engaging and disengaging with the eyelet.