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US 10,899,034 B2Granted
Method and machine for cutting logs of wound web material
AssigneeFabio Perini S.p.A.
InventorsGraziano Mazzaccherini, Franco Montagnani
Life of this patent
Estimating the term…
Abstract
The cutting machine for cutting logs of web material, includes a cutting head arranged along the feeding path of the logs. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes a store unit for disc-shaped cutting blades associated with the cutting head. A handling member is provided to remove a worn disc-shaped cutting blade from the cutting head and replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit.
Claims8
A cutting machine for cutting logs of web material comprising:
- a feeding path for logs to be cut;
- a cutting head arranged along the feeding path, said cutting head comprising a coupling for a disc-shaped cutting blade which is configured to impart the disc-shaped cutting blade a rotary motion around an axis thereof and a cyclic movement to cut the logs into rolls, and to allow the logs to move forward along the feeding path;
- at least one store unit for disc-shaped cutting blades associated with the cutting head;
- at least one handling member to remove the disc-shaped cutting blade from the cutting head when the disc-shaped cutting blade is a worn disc-shaped cutting blade to be replaced, and to replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit;
- wherein the store unit comprises a blade-holder rotating around a rotation axis substantially orthogonal to the feeding path for the logs and provided with a plurality of seats for the disc-shaped cutting blades, and wherein the plurality of seats are adapted to support the disc-shaped cutting blades in the blade-holder with their axis substantially orthogonal to the feeding path and the at least one handling member is adapted to pivot the disc-shaped cutting blades into a position with the rotation axis parallel to the feeding path and attach the new disc-shaped cutting blade to the cutting head.
2 more elements
A cutting machine for cutting logs of web material comprising:
- a feeding path for logs to be cut;
- a cutting head arranged along the feeding path, said cutting head comprising a coupling for a disc-shaped cutting blade which is configured to impart the disc-shaped cutting blade a rotary motion around an axis thereof and a cyclic movement to cut the logs into rolls, and to allow the logs to move forward along the feeding path;
- at least one store unit for disc-shaped cutting blades associated with the cutting head;
- at least one handling member to remove the disc-shaped cutting blade from the cutting head when the disc-shaped cutting blade is a worn disc-shaped cutting blade to be replaced, and to replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit, wherein the store unit comprises a blade-holder rotating around a rotation axis substantially orthogonal to the feeding path for the logs and provided with a plurality of seats for the disc-shaped cutting blades, and wherein each seat of said plurality of seats is provided with a pivoting motion from a first position, wherein a respective disc-shaped cutting blade is stored, to a second position, wherein the respective disc-shaped cutting blade is transferred;
- in the first position the disc-shaped cutting blade is arranged with the rotation axis thereof substantially orthogonal to the feeding path for the logs;
- in the second position the disc-shaped cutting blade being arranged with an axis thereof being substantially parallel to the feeding path.
3 more elements
A method for cutting logs of wound web material comprising steps of:
- providing a feeding path for logs to be cut;
- arranging along the feeding path a cutting head with at least one disc-shaped cutting blade, the cutting head moving the disc-shaped cutting blade with a cyclical motion to cut the logs and allow a forward movement of the rolls along the feeding path;
- providing at least one store unit for disc-shaped cutting blades associated with the cutting head;
- moving logs of web material sequentially along the feeding path in a direction parallel to a log axis;
- cutting the logs by the disc-shaped cutting blade mounted on the cutting head and severing the logs into small rolls having an axial length smaller than the logs;
- periodically grinding the disc-shaped cutting blade;
- when the disc-shaped cutting blade is so worn that the cutting blade is a worn disc-shaped cutting blade to be replaced:
- temporarily stopping forward movement of the logs;
- removing the worn disc-shaped cutting blade from the cutting head;
- taking a new disc-shaped cutting blade from the store unit by a handling member, transferring the new disc-shaped cutting blade to the cutting head and mounting the new disc-shaped cutting blade on the cutting head;
- once the new disc-shaped cutting blade has been mounted on the cutting head, re-starting the forward movement of the logs along the feeding path;
- wherein the store unit is adapted to support the disc-shaped cutting blades with axes of the cutting blades being substantially orthogonal to the feeding path, and the handling member is adapted to attach the new disc-shaped cutting blade to the cutting head;
- and wherein the store unit includes a blade-holder having a plurality of seats and each seat of said plurality of seats is provided with a pivoting motion from a first position, wherein a respective disc-shaped cutting blade is stored, to a second position, wherein the respective disc-shaped cutting blade is transferred;
- in the first position the disc-shaped cutting blade is arranged with the rotation axis thereof substantially orthogonal to the feeding path for the logs;
- in the second position the disc-shaped cutting blade being arranged with an axis thereof being substantially parallel to the feeding path.
12 more elements
A method for cutting logs of wound web material, comprising steps of:
- moving logs of web material sequentially along a feeding path in a direction parallel to axes of the logs;
- cutting the logs by a disc-shaped cutting blade mounted into a cutting head and severing the logs into rolls of an axial length smaller than that of the logs, the cutting head moving the disc-shaped cutting blade with a cyclical motion to cut the logs and allow a forward movement of the logs along the feeding path;
- periodically grinding the disc-shaped cutting blade;
- when the disc-shaped cutting blade is so worn that the cutting blade is a worn disc-shaped cutting blade to be replaced:
- temporarily stopping the forward movement of the logs, removing the worn disc-shaped cutting blade from the cutting head, taking a new disc-shaped cutting blade from a store unit, transferring the new disc-shaped cutting blade to the cutting head and mounting the new disc-shaped cutting blade on the cutting head;
- once the new disc-shaped cutting blade has been mounted on the cutting head, re-starting the forward movement of the logs along the feeding path;
- wherein the store unit is adapted to support the disc-shaped cutting blades with axes of the disc-shaped cutting blades being substantially orthogonal to the feeding path, and a handling member is adapted to attach the new disc-shaped cutting blade to the cutting head;
- and wherein the store unit includes a blade-holder having a plurality of seats and each seat of said plurality of seats is provided with a pivoting motion from a first position, wherein a respective disc-shaped cutting blade is stored, to a second position, wherein the respective disc-shaped cutting blade is transferred;
- in the first position the disc-shaped cutting blade is arranged with the rotation axis thereof substantially orthogonal to the feeding path for the logs;
- in the second position the disc-shaped cutting blade being arranged with an axis thereof being substantially parallel to the feeding path.
7 more elements
A cutting machine for cutting logs of web material comprising:
- a feeding path for logs to be cut;
- a cutting head arranged along the feeding path, said cutting head comprising a coupling for a disc-shaped cutting blade which is configured to impart the disc-shaped cutting blade a rotary motion around an axis thereof and a cyclic movement to cut the logs into rolls, and to allow the logs to move forward along the feeding path;
- at least one store unit for disc-shaped cutting blades associated with the cutting head;
- at least one handling member to remove the disc-shaped cutting blade from the cutting head when the disc-shaped cutting blade is a worn disc-shaped cutting blade to be replaced, and to replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit;
- and wherein the store unit comprises a blade-holder provided with a plurality of seats for a plurality of disc-shaped cutting blades, arranged and configured to keep the disc-shaped cutting blades aligned according to an alignment direction substantially parallel to the feeding path;
- wherein the disc-shaped cutting blades in the store unit are adapted to move substantially parallel to the alignment direction thereof;
- and wherein the at least one handling member is adapted to position a worn disc-shaped cutting blade removed from the cutting head into one empty seat of the store unit, and is adapted to pick up a new disc-shaped cutting blade from another seat of the store unit and attach the new disc-shaped cutting blade to the cutting head.
4 more elements
Dependencies are inferred from the claim text.