Transport device with reduced fluid consumption
OwnerZollner Alfred, Zollner Wernerinventors
Life of this patent
Estimating the term…
Abstract
A transport device is described, which is adapted to transport a recording medium on a transport belt through a printing unit. The conveyor belt has a plurality of holes that have a first cross-sectional area towards the recording medium. Air is pumped out of the holes by means of a negative pressure unit in order to build up a negative pressure in the holes. In the process, the fluid is pumped over a second cross-sectional area that is smaller as compared to the first cross-sectional area. As a result, relatively high holding forces on the recording medium can be achieved with relatively low fluid consumption.
Claims10
A transport device for transporting a recording medium through a printing unit of a printing device the transport device comprising:
- a conveyor belt;
- a movement unit configured to move the conveyor belt through the printing unit,
- wherein the conveyor belt includes a plurality of holes,
- wherein the conveyor belt is configured to transport the recording medium on a front side of the conveyor belt, and
- wherein the plurality of holes on the front side of the conveyor belt has a first cross-sectional area;
- a negative pressure unit configured to generate a negative pressure in the plurality of holes of the transport belt by pumping out a fluid, so that a holding force is caused on the recording medium at the first cross-sectional area of the plurality of holes, and
- the fluid for building up the negative pressure is pumped out through a second cross-sectional area that is smaller than the first cross-sectional area.
Dependencies are inferred from the claim text.