Krupp Kunststofftechnik Gmbh

Krupp Kunststofftechnik Gesellschaft MIT Beschrankter Haftung

Steffen Rotz

Norbert Lentz

Karl-Heinz Witt

Hubert Kania

Thomas Kolodzey

A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper and the lower frame part, respectively. Each knife holder assembly includes a bearing shaft composed of a first bearing shaft part having a longitudinal axis and an adjoining second bearing shaft part. The first bearing shaft part is received in a recess of a respective frame part for turning motions therein about the longitudinal axis. A first securing arrangement immobilizes the first bearing shaft part relative to the respective frame part. A rotary bearing surrounds the second bearing shaft part and has a rotary axis which is offset relative to the longitudinal axis to define an eccentricity therewith. A rotary knife is mounted on the rotary bearing. The rotary knife of the first knife holder assembly and the rotary knife of the second knife holder assembly cooperate with one another and together define a cutting plane which passes through the rotary bearing of the upper and lower knife holder assemblies. A second securing arrangement affixes the rotary knife to the rotary bearing.

Holder unit for a rotary knife pair

An apparatus for flanging an edge of a can body includes a flanging tool which has an inner tool part having an outer circumferential flanging face for engaging an inner surface of a circumferential edge zone of the can body; an outer tool part surrounding the inner tool part and having an inner circumferential abutment face surrounding the flanging face for abutting a periphery of the can body edge during flanging of the can body edge by the flanging face; an axially hollow, non-rotatable spindle to which the outer tool part is affixed and which has a first axis; a rotary shaft received in the spindle and having a second axis coinciding with the first axis; and a shaft stub affixed to and extending from the shaft. The inner tool part is rotatably mounted on the shaft stub which has a central, third axis disposed at an inclination to the second axis. The second and third axes intersect in a point situated substantially at an axial location corresponding to an axial location of the flanging face of the inner tool part.

Growing community of inventors

Essen, Germany

Steffen Rotz