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US 12,011,900 B2Granted
Single facer for manufacturing a corrugated board with a facilitated system for replacing the pressing belt
AssigneeFosber S.p.A.
InventorMauro Adami
Life of this patent
Estimating the term…
Abstract
The single facer includes a load-bearing frame for housing a first corrugating roller and a second corrugating roller, meshing with each other and mounted in the load-bearing frame. The single facer further includes a pivoting structure, pivoted to the load-bearing frame about a pivoting axis and including two pivoting arms supporting two guide rollers of a continuous flexible member. Two actuators raise and lower the pivoting arms and the guide rollers. A hinge system allows to keep the pivoting structure cantilevered to replace the continuous flexible member.
Claims14
A single facer for manufacturing a single face corrugated board, comprising:
- a load-bearing frame;
- a first corrugating roller and a second corrugating roller, meshing with each other and associated with the load-bearing frame;
- a pivoting structure, pivoted to the load-bearing frame about a pivoting axis, wherein the pivoting structure comprises:
- a first pivoting arm, pivoted to the load-bearing frame by a first hinge system on a first side of the single facer;
- and a second pivoting arm on a second side of the single facer;
- wherein the first pivoting arm and the second pivoting arm are rigidly connected to each other;
- a first guide roller with a first rotation axis, supported on the first pivoting arm and on the second pivoting arm;
- a second guide roller with a second rotation axis, supported on the first pivoting arm and on the second pivoting arm;
- a continuous flexible member, guided about the first guide roller and the second guide roller;
- a first actuator associated with the first pivoting arm and forming a first constraint between the first pivoting arm and the load-bearing frame;
- a second actuator associated with the second pivoting arm and forming a second constraint between the second pivoting arm and the load-bearing frame;
- wherein the first actuator and the second actuator are adapted to bring the pivoting structure to a working position, wherein the first guide roller and the second guide roller are adjacent to the second corrugating roller, and to a raised position, wherein the first guide roller and the second guide roller are spaced apart from the second corrugating roller;
- and wherein the first hinge system forms a constraint with the load-bearing frame adapted to support in a cantilevered fashion the first guide roller and the second guide roller when the second pivoting arm is released from the load-bearing frame, so as to allow removal of the continuous flexible member from the second side of the single facer.
10 more elements
A method for operating a single facer comprising:
- a load-bearing frame, a first corrugating roller and a second corrugating roller meshing with each other and associated with the load-bearing frame;
- a pivoting structure, pivoted to the load-bearing frame about a pivoting axis, wherein the pivoting structure comprises a first pivoting arm, pivoted to the load-bearing frame by a first hinge system on a first side of the single facer, and a second pivoting arm on a second side of the single facer, and wherein the first pivoting arm and the second pivoting arm are rigidly connected to each other;
- a first guide roller and a second guide roller supported on the first pivoting arm and on the second pivoting arm;
- a continuous flexible member, guided about the first guide roller and the second guide roller;
- a first actuator associated with the first pivoting arm and forming a first constraint between the first pivoting arm and the load-bearing frame;
- a second actuator associated with the second pivoting arm and forming a second constraint between the second pivoting arm and the load-bearing frame, wherein the method comprises steps to replace the continuous flexible member as follows:
- moving the first guide roller and the second guide roller away from the second corrugating roller;
- releasing the second actuator from the second pivoting arm and supporting the second pivoting arm, the first guide roller and the second guide roller in a cantilevered fashion by the first pivoting arm;
- removing the continuous flexible member from the first guide roller and from the second guide roller;
- inserting a new continuous flexible member on the first guide roller and on the second guide roller;
- connecting the second actuator to the second pivoting arm;
- lowering the pivoting structure toward the second corrugating roller;
- and
- pressing the continuous flexible member against the second corrugating roller.
11 more elements
A single facer for manufacturing a single face corrugated board, comprising:
- a load-bearing frame;
- a first corrugating roller and a second corrugating roller, meshing with each other and associated with the load-bearing frame;
- a pressing unit pivoted to the load-bearing frame about a pivoting axis and comprising:
- a first pivoting arm;
- a second pivoting arm rigidly connected to the first pivoting arm;
- a first guide roller with a first rotation axis, supported on the first pivoting arm and on the second pivoting arm;
- a second guide roller with a second rotation axis, supported on the first pivoting arm and on the second pivoting arm;
- a continuous flexible member, guided about the first guide roller and the second guide roller;
- wherein the first pivoting arm is adapted to support in a cantilevered fashion on the load-bearing frame the second pivoting arm, the first guide roller and the second guide roller, to allow removal of the continuous flexible member from the side of the second pivoting arm.
6 more elements
Dependencies are inferred from the claim text.