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US 12,472,719 B2Granted
Multiple roller embosser and method for selecting an embossing roller
AssigneeValmet Tissue Converting S.p.A.
InventorsMauro Ricci, Fabrizio Lorenzi
Life of this patent
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Abstract
The embosser includes two load-bearing structures that are mutually movable to approach and move away from each other. The first load-bearing structure supports a plurality of first embossing rollers that can be selectively brought to an operating position, in which they cooperate with a first pressure roller. The second load-bearing structure supports one or more second embossing rollers cooperating with a second pressure roller. The two support structures can be moved away from each other to allow the selection movement of the first embossing rollers.
Claims15
An embosser comprising:
- a first load-bearing structure, on which a plurality of first embossing rollers is supported, each first embossing roller of said first embossing rollers having a respective rotation axis, wherein the first embossing rollers are rotatably mounted on a movable support, the movable support being movable with respect to the first load-bearing structure;
- and wherein the movable support is provided with a selection movement with respect to the first load-bearing structure, to selectively arrange in an operating position one of said first embossing rollers mounted on the movable support;
- a first pressure roller adapted to form a first embossing nip with the one of the first embossing rollers which is in the operating position;
- wherein the first pressure roller is supported on the first load-bearing structure;
- a first path for a first ply of web material, said first path extending through the first embossing nip;
- a second load-bearing structure, on which at least a second embossing roller is rotatably supported;
- a second pressure roller adapted to form, with said at least a second embossing roller, a second embossing nip;
- wherein the second pressure roller is supported on the second load-bearing structure;
- a second path for a second ply of web material extending around the second pressure roller;
- wherein the first load-bearing structure and the second load-bearing structure are movable relative to each other to take a position of mutual approach and a position of mutual distancing;
- wherein the position of mutual distancing is such that the first embossing rollers can be moved relative to the first load-bearing structure to perform the selection movement of the movable support.
8 more elements
Dependencies are inferred from the claim text.