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US 2009/0250545 A1Published application
Rewinding machine to rewind web material on a core for rolls and corresponding method of winding
AssigneeFabio Perini S.p.A.
InventorsAlberto RECAMI, Giuliano PAGLIANI
Life of this patent
Estimating the term…
Abstract
In a rewinding machine for winding web material onto a core to form rolls which has an unusual capability for accurate regulation of the winding, the web material is supplied to a winding drum and is transferred to the core to form the roll. The core is supported, rotated in controlled manner, and transported along a path in which the roll of web material wound on the core is enlarged whilst bearing continuously on the winding drum.
Claims18
A rewinding machine for winding a web material onto a core to form rolls, comprising:
- a frame;
- a web supply path;
- along said web supply path, a first motor-driven winding drum supported by said frame and rotating at a peripheral velocity substantially corresponding to a web supply speed, at which said web is supplied along said web supply path, said web being fed in contact with and around said first winding drum;
- motor-driven core grippers for gripping said core during winding;
- a second motor-driven winding drum located in opposition to the first winding drum, a space being defined between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side;
- a core advancing path, along which the core is moved and along which the roll of web material wound on the core is increased;
- said path extending through said space, and said core entering said space at said inlet side and exiting said space at said outlet side;
- wherein said motor-driven grippers impart a rotation to the core whilst said roll of web material is in contact with and rotated by at least one of said first and second winding drums.
5 more elements
A rewinding machine for winding a web material onto a core to form rolls, comprising:
- a frame;
- a web supply path;
- arranged along said web supply path, a first motor-driven winding drum supported by said frame and rotating at a peripheral velocity substantially corresponding to a web supply speed, at which said web is supplied along said web supply path, said web being fed in contact with and around said first winding drum;
- motor-driven core grippers for gripping the ends of the core during winding;
- a second motor-driven winding drum located in opposition to the first winding drum, a space being defined between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side;
- a core advancing path, along which the core is moved and along which the roll of web material wound on the core is increased;
- said path extending through said space, and said core entering said space at said inlet side and exiting said space at said outlet side;
- wherein said motor-driven grippers impart a rotation to the core whilst said roll of web material is in contact with and rotated by said first winding drum.
5 more elements
A rewinding machine for winding a web material onto a core to form rolls, comprising:
- a frame;
- a web supply path;
- arranged along said web supply path, a first motor-driven winding drum supported by said frame and rotating at a peripheral velocity substantially corresponding to a web supply speed, at which said web is supplied along said web supply path, said web being fed in contact with and around said first winding drum;
- motor-driven core grippers for gripping the ends of the core during winding;
- a second motor-driven winding drum located in opposition to the first winding drum, a space being defined between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side;
- a core advancing path, along which the core is moved and along which the roll of web material wound on the core is increased;
- said path extending through said space, and said core entering said space at said inlet side and exiting said space at said outlet side;
- wherein said motor-driven grippers impart a rotation to the core whilst said roll of web material is in contact with and rotated by said first winding drum and said second winding drum.
5 more elements
A rewinding machine for winding web material on a core in order to form rolls, including:
- a web supply path, along which said web is fed at a supply speed;
- along said web supply path, a first motorized winding drum around which said web is guided;
- a second motorized winding drum located in opposition to the first winding drum, a space being defined between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side;
- said web supply path extending through said space, said web entering said space at said inlet side and exiting said space at said outlet side;
- a core supporting and rotating device, which supports and rotates said core in a controlled manner, and transports said core along a path in which the roll of web material wound on the core is increased whilst bearing continuously on at least said first winding drum.
2 more elements
A rewinding machine for winding web material on a core in order to form rolls, including:
- a web supply path, along which said web is fed at a supply speed;
- a core advancing path, along which said core is advanced;
- along said web supply path, a first motorized winding drum around which said web is guided;
- a second motorized winding drum located in opposition to the first winding drum, a space being defined between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side;
- said core advancing path extending through said space, said core entering said space at said inlet side and exiting said space at said outlet side;
- a core supporting and rotating device, which supports and rotate said core in a controlled manner, and transports said core along a path in which the roll of web material wound on the core is increased whilst bearing continuously on at least said first winding drum.
3 more elements
A method of winding web material on a core to form rolls, including:
- feeding said web material along an advancement path;
- arranging a first motorized winding drum along said web advancement path;
- guiding said web around said first motorized winding drum;
- arranging a second motorized winding drum in opposition to the first winding drum, and defining a space between said first winding drum and said second winding drum, said space having opposite inlet side and outlet side,
- advancing a core across said space, entering said space at said inlet side and exiting said space at said opposite outlet side;
- supporting and rotating said core in a controlled manner whilst increasing said roll of web material wound on the core in contact with at least said first winding drum.
3 more elements
Dependencies are inferred from the claim text.