Method and equipment for control and manufacture of corrugated cardboard
AssigneeValmet Automation Oy
InventorsMarkku Mäntylä, Mikko Lassila, Mikko Talonen, Kari Söder, Marko Toskala
Life of this patent
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Abstract
Control equipment for the manufacture of corrugated cardboard. The manufacturing equipment includes a gluing unit, a sensor arrangement and actuator equipment. The actuator equipment is adapted to adjust the moisture on a first surface of a liner on the basis of measurements taken by the sensor arrangement for gluing the liner by its first surface to a fluting paper.
Claims15
An apparatus for the manufacture of corrugated cardboard, the apparatus comprising:
- a gluing unit;
- heating equipment adjacent to the gluing unit;
- a first sensor arrangement disposed around a liner and being configured to measure a moisture of a first surface of the liner, the first surface of the liner being glued to a fluting paper;
- a second sensor arrangement disposed around the liner and being configured to measure a temperature of the liner;
- and
- at least one steam box disposed between the gluing unit and the heating equipment, the at least one steam box being configured to control the temperature and moisture of the liner by adjusting an amount of steam directed at the liner in response to the measured moisture and the measured temperature of the liner by the first and second sensor arrangements, wherein the moisture of the liner may be decreased or increased by the at least one steam box.
A method for the manufacture of corrugated cardboard, the method comprising:
- measuring a moisture of a first surface of a liner by a first sensor arrangement disposed around the liner, the first surface of the liner being glued to a fluting paper;
- measuring a temperature of the liner by a second sensor arrangement disposed around the liner;
- and
- controlling the temperature and moisture of the liner by adjusting an amount of steam directed at the liner, by at least one steam box disposed between a gluing unit and a heating equipment, in response to the measured moisture and the measured temperature of the liner by the first and second sensor arrangements, wherein the moisture of the liner may be decreased or increased by the at least one steam box.
A manufacturing method of corrugated cardboard, the manufacturing method comprising:
- measuring a moisture of a first surface of a liner by a first sensor arrangement disposed around the liner;
- measuring a temperature of the liner by a second sensor arrangement disposed around the liner;
- controlling the temperature and moisture of the liner by adjusting an amount of steam directed at the liner, by at least one steam box disposed between a gluing unit and a heating equipment, in response to the measured moisture and the measured temperature of the liner by the first and second sensor arrangements, wherein the moisture of the liner may be decreased or increased by the at least one steam box;
- and
- gluing, by the gluing unit, the first surface of the liner and a fluting paper to each other.
A process controller adapted to control manufacture of corrugated cardboard, the process controller comprising:
- at least one memory storing a computer program code;
- and
- at least one processor operatively coupled to the at least one memory, the computer program code stored in the at least one memory and the at least one processor causing the process controller to:
- measure a moisture of a first surface of a liner by a first sensor arrangement disposed around the liner, the first surface of the liner being glued to a fluting paper;
- measure a temperature of the liner by a second sensor arrangement disposed around the liner;
- and
- control the temperature and moisture of the liner by adjusting an amount of steam directed at the liner, by at least one steam box disposed between a gluing unit and a heating equipment, in response to the measured moisture and the measured temperature of the liner by the first and second sensor arrangements, wherein the moisture of the liner may be decreased or increased by the at least one steam box.
Dependencies are inferred from the claim text.