Apparatus for transporting envelope blanks in an envelope making machine
AssigneeWinkler + Dunnebler Aktiengesellschaft
InventorMartin Blumle
Life of this patent
Estimating the term…
Abstract
An apparatus for transporting envelope blanks in an envelope making machine comprises at least one conveyor belt having a plurality of perforation holes therein, on which envelope blanks are transported through the machine in a conveyor plane. Beneath the conveyor belt is at least one suction chamber by means of which ambient air can be sucked through the perforation holes to retain blanks on the conveyor belt. At least one guide belt is provided on at least one side beside the conveyor belt in the direction of movement thereof. The conveyor belt and the guide belt are drivable so as to move synchronously in the direction of travel of the envelope blanks.
Claims16
Apparatus for transporting envelope blanks in an envelope making machine comprising:
- at least one conveyer belt having a plurality of perforation holes for transporting thereon the envelope blanks in a passage direction in a transport plane,
- at least one suction chamber beneath the conveyer belt and operable to suck ambient air through the perforation holes,
- at least one guide belt beside the conveyor belt on at least one of the two sides thereof in the passage direction,
- means for driving the conveyor belt and the at least one guide belt to move synchronously in the passage direction, and
- a stationary separating bar between the conveyor belt and the guide belt, said conveyor belt and said guide belt being arranged in said transport plane and said stationary separating bar being arranged in or a little below said transport plane.
In an envelope making machine an apparatus for transporting envelope blanks in an envelope making machine comprising:
- at least one conveyer belt having a plurality of perforation holes for transporting thereon the envelope blanks in a passage direction in a transport plane,
- at least one suction chamber beneath the conveyer belt and operable to draw ambient air through the perforation holes,
- at least one guide belt on at least one side of the conveyor belt,
- means for driving the conveyor belt and the guide belt for movement thereof synchronously in the passage direction, and
- a stationary separating bar between the conveyor belt and the guide belt,
- said conveyor belt and said guide belt being arranged in said transport plane and said stationary separating bar being arranged in or a little below said transport plane.
Dependencies are inferred from the claim text.