Method and apparatus for the stream feeding delivery of sheet products
AssigneeAlbert-Frankenthal AG
InventorsEmil Fischer, Rudolf Stab
Life of this patent
Estimating the term…
Abstract
Sheet-like products coming off a folder are firstly transported some distance before being caused to overlap. In order to slow down the products to cause this to take place and to arrange them in a perfectly regular feed stream without being damaged, the products are engaged by grippers that are moved along a preferably arcuate path on a support in the course of which the products are slowed down by the grippers to the speed of a delivery belt on which the products are then deposited.
Claims23
A stream feeding apparatus for receiving sheet-like products from a supply device at a supply speed and delivering said products in the form of an overlapped feed stream to a delivery belt at a delivery speed that is lower than the supply speed, comprising
- a cylindrically shaped drum having an outer wall defining a support means and a path of motion which at an uptake end thereof is aligned with a plane of motion of said products as defined by said supply device, said support means having a length in excess of the length of such product as measured in the direction of transport thereof and extending as far as said delivery belt,
- grippers adapted to move generally parallel to said support means from said supply device to said delivery belt, said grippers being arranged in rows and displaceable relative to said support means,
- means for pivoting said grippers relative to the outer wall of said drum so as to grip said products at said supply device and release same at said delivery belt,
- gripper driving means for decelerating said grippers on moving parallel to said support means from generally the same speed as said supply device to generally the same speed as said delivery belt and releasing said products for further transport on said belt and then accelerating said grippers on moving from said delivery belt back to said supply device, and
- means for driving said drum at a steady angular speed whose speed in complete revolutions in equal to the average angular speed of said grippers.
Dependencies are inferred from the claim text.