Apparatus and method for preparing winding mandrels and cores for rewinding machines
AssigneeCelli S.p.A.
InventorGiuseppe Acciari
Life of this patent
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Abstract
A description is given of a device for preparing winding mandrels for winding machines or the like, comprising, in combination: an extraction station (9) with an extractor mechanism for extracting a mandrel from one or more rolls of web material and for inserting the extracted mandrel into a tube (T); a cutting station (11) with cutting means (71) for cutting the tube (T) fitted on the mandrel into a set of tubular cores aligned on said mandrel; an insertion station (13) with insertion members (127) for inserting the mandrel with the tubular cores into a winding machine or the like.
Claims52
Device for preparing winding mandrels for winding machines;
- the device comprising, in combination;
- an extraction station with an extractor mechanism for extracting a mandrel from at least one roll of web material and for inserting the extracted mandrel into a tube;
- a cutting station with cutting mean for cutting the tube fitted on the mandrel into a set of tubular cores aligned on the mandrel;
- an insertion station with insertion members for inserting the mandrel with the tubular cores into a winding machine.
Method for preparing tubular winding cores on a winding mandrel, comprising the stages of:
- extracting a mandrel from a roll which has been formed;
- inserting the mandrel into a tube and fixing the tube with respect to said mandrel;
- cutting the tube into a plurality of tubular cores aligned along said mandrel;
- inserting the mandrel with the tubular cores fixed on it into a winding machine.
A method for winding web material onto tubular winding cores, the method comprising the steps of:
- receiving a mandrel with a plurality of first tubular cores from a winding machine, the first plurality of cores being wound with web material;
- extracting the mandrel from said plurality of first tubular cores wound with web material;
- providing a tube;
- inserting the mandrel into the tube substantially simultaneously with said step of extracting;
- fixing the mandrel to the tube;
- cutting the tube into a plurality of second tubular cores aligned along the mandrel;
- winding web material onto said plurality of second tubular cores while said plurality of second tubular cores are arranged around the mandrel and fixed to the mandrel.
A device for preparing winding mandrels for winding machines the device comprising;
- an extraction station with an extractor mechanism for extracting a mandrel from at least one roll of web material and for inserting the extracted mandrel into a tube by a single movement;
- a cutting station with cutting means for cutting the tube fitted on the mandrel into a set of tubular cores aligned on the mandrel;
- and
- an insertion station with insertion members for inserting the mandrel with the tubular cores into a winding machine.
A device for preparing winding mandrels for winding machines the device comprising:
- an extraction station with an extractor mechanism for extracting a mandrel from at least one roll of web material and for inserting the extracted mandrel into a tube, said extraction station comprising a support device for the tube, said support device being aligned with the trajectory of the mandrel while it is extracted from a formed roll, said support device comprising a cradle, in which said extractor mechanism is positioned at one end of said cradle, and pushes the mandrel, while extracting it from said at least one roll, into the tube supported on said support cradle;
- a cutting station with cutting means for cutting the tube fitted on the mandrel into a set of tubular cores aligned on the mandrel;
- an insertion station with insertion members for inserting the mandrel with the tubular cores into a winding machine.
Dependencies are inferred from the claim text.