Rotary cutting apparatus,申请号US19890419876-传众专利搜索

Rotary cutting apparatus

申请公布号：US4982637(A)

申请号：US19890419876

申请日期：1989.10.11

申请公布日期：1991.01.08

申请人：

MOBIL OIL CORPORATION

发明人：OSBORN, PAUL V.

分类号：B26D1/40;B26D7/18;B26F1/20;B26F1/38;B31B1/14;B31B1/20

主分类号：B26D1/40

摘要：Apparatus particularly suited for cutting continuously moving thermoplastic film such as linear low density polyethylene and includes a stationary anvil, preferably a roller of tool steel and a tungsten carbide die mounted for rotation along a circular arc intersecting the anvil. The roller is positioned at a stationary location along a circular arc for cyclicly contacting and rolling across the cutting surface for cutting the plastic film web passing between the roller and the cutting surface at the predetermined locations in the web. The roller is mounted on a support member by an assembly including a bracket mounting a shaft supporting the roller. The bracket is attached to one end of a rocker arm and the other end of the rocker arm is pivotally carried by the support member. A housing for a loading spring is carried by the support member adjacent the rocker arm. The housing has a tubular opening therethrough having an axial extending transversely to the axis of the shaft supporting the roller. A helical loading spring is disposed within the tubular opening of the housing and has one end engaging the rocker arm. A spring adjusting screw is carried in one end of the tubular opening in the housing for engaging the opposite end of the helical spring to adjust the load pressure of the spring applied to the roller. A stop member is carried by the support member on the opposite side of the rocker arm to limit movement of the roller in the direction of the cutting surface.