Heidelberger Druckmaschinen Ag

Jean Francois Robert

Serge Lanvin

Philippe Robin

A folding jaw arrangement ( ) at a lateral surface ( ) of a product-carrying cylinder ( ) in folding apparatuses. The folding jaw arrangement ( ) includes a stationary folding jaw part ( ) and a movable folding jaw part ( ). Formed therebetween is a gap ( ) into which a folding means ( ) of further cylinder ( ) co-operating with the product-carrying cylinder ( ) plunges during the cross-folding of products. In the process, the product to be cross-folded passes from the further cylinder ( ) to the lateral surface ( ) of the product-carrying cylinder ( ) and is held thereon by the folding jaws ( ). The movable folding jaw part ( ) is provided with resilient regions ( ) via which the product is brought into and held in contact ( ) with the stationary folding jaw part ( ) of the folding jaw arrangement ( ).

Folding jaw arrangement on printed product-processing folding cylinders

An apparatus for varying a speed of flat products. The apparatus has a first, higher-speed conveyor arrangement containing conveyor drums and belts, and a second, slower speed conveyor configuration containing belt rollers and belts, in which the flat products are each transported between the belts of the first and second conveyor configurations. A pair of rollers with recesses is provided on the circumference in the conveying path of one of the two conveyor configurations). Rotational bodies move about their respective eccentric axes that in turn are located on crankshafts. The crankshafts rotate on axes with reference to the frame walls, and the rotational bodies and the crankshafts move at a constant angular speed omega.

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Creil, France

Jean Francois Robert