Bwg Bergwerk-und Walzwerk-maschinenbau Gmbh

Bwg Bergwerk-und Walzwerk-maschinenbaum Gmbh

Bergwerk-und Walzwerk-maschinenbau Gmbh

Herbert Lux

Oskar Felix Noe

Andreas Noe

Rolf Noe

Dieter Baukloh

Willi Dotsch

Hermann Koppers

Dieter Hohl

Heinz-Wilhelm Berger

A reel for coiling and uncoiling metal strips includes an expanding mandrel which is actuated by a spreader cylinder. The expanding mandrel is driven by a drive motor with a control and computing unit for determining the outer diameter of the coil at any given time. The outer diameter is introduced into a microprocessor which determines the initial spreading pressure and the winding pull to be maintained. The winding pull to be maintained is introduced into the control and computing unit. The microprocessor further determines, in dependence on the outer diameter of the coil, the required spreading pressure which is generated in the spreading cyclinder. As a result, the expanding mandrel always operates with a spreading force which is dependent upon the outer diameter of the coil at any given time, so that overloading is eliminated and wear is substantially reduced.

Coiling reel

A strip treatment apparatus, for example for metal strips includes a strip drive and a strip store disposed both at the apparatus entry and apparatus exit with a processing section being disposed between the two stores and a strip drive being disposed after the processing section. The two loop trolleys or roll tables of the strip stores are mechanically interconnected to form a movable unit. The strip drive disposed after the processing section and/or the strip drives at the entry and exit of the apparatus are operative as drives for moving the interconnected loop trolleys or interconnected roll tables, so that independent drives for these movable units can be omitted.

Strip drive for advancing materials for processing

The method and apparatus provide for transversely separating and laterally trimming or finishing continuously passing strips in processing lines for strip material, such as metallic strip. The strip is first severed in transverse direction and immediately thereafter is trimmed at the sides thereof. The time required for adjusting the lateral shears is approximately equal to that of the coil exchange operation leading to the time gained, and stoppages of strip in the operating stages are precluded.

Method of and apparatus for processing strip

A metal strip is spanned over a plurality of rollers carried on a pair of frames. A single heavy-duty drive motor rotates a common drive shaft that is connected via bevel gearing to the sun gears of a plurality of planetary-gear assemblies each having its planet carrier connected to the respective roller. The ring gear of one of these assemblies is fixed whereas the ring gears of all of the other assemblies are connected to respective compensating motors. A torque sensor at the output of each compensating motor generates an actual value signal indicating the amount of torque being applied by that motor to the respective ring gear. The comparator compares this actual-value signal with a set point coming from a single set-point generator and varies the motor speed in accordance with the difference between these two signals.

Method of and apparatus for stretching a metal strip

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Mulheim, Germany

Herbert Lux