Apparatus for evenly spacing successive printed products
AssigneeFerag AG
InventorWalter Reist
Life of this patent
Estimating the term…
Abstract
Sheet-like products are fed to the transfer location by a first conveyor. A detector arrangement determines the spacing between the products and controls the first predetermined speed of a second conveyor correspondingly, with the result that, at the transfer location, the formation of the products have a predefined spacing. If the second conveyor is driven, at the stationary transfer location, at the first predetermined speed which differs from a second predetermined speed at the stationary discharge location, the conveying length of the second conveyor changes, thereby displacing a deflection wheel. Different spacings between fed products can thus be evened out.
Claims10
An apparatus for evenly spacing successive sheet-like products comprising:
- a first conveyor for feeding products having a spacing between mutually corresponding edges of successive products to a stationary transfer location;
- a second conveyor positioned downstream of the first conveyor to receive said products at the transfer location and convey the products to a discharge location, said second conveyor having an adjustable effective conveying length extending from the transfer location to the discharge location;
- a detector arrangement positioned upstream of the transfer location for detecting the spacing between the successive products arranged on the first conveyor;
- a first motor for driving said second conveyor at an adjustable first predetermined speed at said transfer location wherein said first speed is adjusted dependent upon signals received from the detector arrangement such that the spacing between mutually corresponding edges of successive products corresponds to a predetermined spacing;
- and
- a second drive motor for driving said second conveyor at a second predetermined speed at said discharge location wherein the effective length of the second conveyor is adjusted as a function of the first predetermined speed of said second conveyor at the transfer location and the second predetermined speed of the second conveyor at the discharge location.
Dependencies are inferred from the claim text.