US 2003/0188954 A1Published application

Device for turning piles of sheet-like material

AssigneeBobst SA

InventorNicolas Brizzi

Life of this patent

Estimating the term…

Loading patent…

Abstract

An apparatus for conveying blanks or sheets that are arranged in piles includes a frame that has an input and an output and a pre-section that aligns the piles of blanks along a longitudinal conveying path. The pile of blanks is conveyed to a turn-over grip that swivels around the horizontal axis that extends transversely to the longitudinal conveying path. The turn-over grip includes two conveying units that are juxtaposed to one another with one of them being used to deliver the piles entering the turn-over grip and the other which is used to remove the piles after the turn-over grip has turned the pile upside down. A tightening mechanism presses one of the conveying units towards the other during the rotation of the turn-over grip. A pusher carriage is situated between the two conveying units and driven by a motor.

Claims12

Dependent claims

A device for turning over piles of sheet material, comprising:

a frame including an input and an output aligned on a longitudinal conveying direction of the piles;
a turn-over grip mounted to swivel about a horizontal axis extending transversely to the longitudinal conveying path, the turn over grip including two conveying units juxtaposed to one another and including a first conveyor situated for delivering the piles entering the device and a second conveyor which is configured for unloading the piles after a pile has been turned over;
a tensioning device that is located to exert a pressure on a pile located between the first and second conveyors during the turning over of a pile;
and
a pushing mechanism disposed to form a stop for the piles in one position of the turn-over grip and to move to assist the unloading of a turn-over pile oft the second conveyor in another position of the turn-over grip.

2 more elements

Dependencies are inferred from the claim text.