Process and apparatus for processing printing products
AssigneeFerag AG
InventorsWerner Honegger, Egon Hansch
Life of this patent
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Abstract
The processing drum, rotatable about the axis for processing printing products, has advancing means for the step-by-step advancing of the printing products deposited in a straddling manner on the rests. In the upper region of the circulating path, these advancing means perform a working stroke about the axis and in the lower region a return stroke. The processing drum has a drawing member reaching around it from below, on which drawing member holding members are arranged at the spacing (A) of the rests, in order to prevent the printing products from falling down when they pass through the lower part of the circulating path and at the same time to support the elongate processing drum.
Claims18
A process for processing printing products, comprising the steps in which folded printing products are deposited in at least one feed section of a processing drum driven rotationally about an approximately horizontal axis, in a straddling manner on saddle-shaped rests of said drum, which rests are distributed regularly in the circumferential direction and run approximately parallel to the axis, and are then transported in a transporting direction during the course of revolutions of the processing drum step by step along the rests to a removal section of the processing drum and, when passing through a section of the lower part of the circulating path about the axis, in which section the fold of the printing products is directed essentially downward, are prevented from falling off the processing drum, wherein the printing products are advanced in the upper part of the circulating path by at least one part of a step in each case by pushing against their trailing edges, as seen in the transporting direction, and the printing products whose advancement in the direction of the axis is held at a standstill in the lower part of the circulating path in said section are exclusively prevented from falling off the rests by endless holding means which are arranged underneath the processing drum and move with the rests.
An apparatus for processing printing products comprising:
- a processing drum driven rotationally about an approximately horizontal axis and having saddle-shaped rests which are distributed regularly in the circumferential direction, run approximately parallel to the axis and are arranged on approximately radial wall elements, the drum having at least one feed section, in which folded printing products can be deposited in a straddling manner on the rests, having a removal section, which is offset with respect to said feed section in the direction of the axis and in which the processed printing products can be carried away from the processing drum, and having transport means for the step-by-step transport of the printing products from the feed section to the removal section, the transport means performing a working stroke during the course of a revolution of the processing drum in the direction from the feed section toward the removal section and a return stroke in the opposite direction, wherein the transport means are formed by advancing means which act on the printing products exclusively in a pushing manner and, as seen in the direction of the working stroke, on the trailing edges of said products, perform at least a part of the working stroke in each case in an upper region of the circulating path and are advancing-inactive in a section of the circulating path in which the rests are directed essentially downward, and wherein underneath the processing drum there are arranged endless holding means which, at least in said section of the circulating path, reach around the processing drum and move synchronously with the rest to prevent the printing products from falling off the processing drum in the section in which the rests are directed essentially downward.
Dependencies are inferred from the claim text.