L. Schuler Gmbh

Otto Rasenberger

Hans Braun

Gunter Cieslok

Helmut Fetzer

Driving apparatus for imparting linear reciprocating movement to a shear on a flying shear apparatus or the like. A continuously constantly rotatable axle is provided with a pair of disks having cam surfaces on the periphery thereof engageable with guide rollers fixed at two lever arms of a three-armed lever, the third lever arm being connected to the flying shear by way of a coupling rod pivotably attached at the third lever arm and the flying shear. The cam disks are configured so as to impart motion to the shear in a feeding direction with a first feed segment of increasing velocity, a second feed segment of constant velocity, and a third feed segment of decreasing velocity, whereby the shearing operation can conveniently be executed during the phase of constant velocity. The cam surfaces are so constructed that motion of the shear in the return stroke direction includes a first return segment of increasing velocity and a second return segment of decreasing velocity, without the interposition of a constant velocity section.

Drive mechanism for a reciprocating feed

Apparatus for driving an automatic workpiece conveyor in a press train which includes a plurality of linkage members articulated to one another to drivingly interconnect a drive element of a press with a workpiece conveyor. The linkage members are interconnected and configured so as to assure movement of the workpiece conveyor between two end positions, with a predetermined stopping interval at the end position, with a continuously moving press drive element. These linkage members include a coupling point interconnecting two of the members which is constrained to move in a predetermined path including two arcuate sections spaced from one another and having the same radius of curvature, which arcuate sections correspond to the end positions of the conveyor. A secondary linkage system is provided for operating a turning device for turning the workpieces when in the end positions. This secondary system includes a two-arm lever having an adjusting motor for threadably moving two parts with respect to one another to effect turning operations. This two-armed lever is pivotally mounted at a rocker arm of the driving linkage for the conveyor.

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Goeppingen, Germany

Otto Rasenberger