Apparatus and method for automatically forming casings for smoking articles including a filter
AssigneeI.M.A. Industria Macchine Automatiche S.P.A.
InventorsAntonio Caporale, Luca Galletti
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Abstract
An apparatus for automatically forming a casing for smoking articles which contains a filter includes a first forming unit configured to form the filter starting from a first shaped sheet, and a second forming unit configured to form the casing starting from a second shaped sheet. The first forming unit includes at least one first forming mandrel rotatable around a first axis of rotation thereof to form the filter, and the second forming unit includes at least one second forming mandrel to form the casing.
Claims17
Apparatus for automatically forming a casing with filter for smoking articles, said apparatus comprising a first forming unit configured to form said filter starting from a first sheet, and a second forming unit configured to form said casing starting from a second sheet, wherein said first forming unit comprises at least one first forming mandrel rotatable around a first axis of rotation thereof to form said filter and axially mobile along said first axis of rotation, said first forming mandrel being provided with holding means to hold at least a first part of said first sheet, and wherein said second forming unit comprises at least one second forming mandrel configured to be wrapped on an external surface thereof by said second sheet so as to create said casing, wherein said second forming mandrel is provided internally with a through axial cavity, and in that said at least one first forming mandrel is configured to push said filter along said through axial cavity by means of a roto-translational movement around and along said first axis of rotation when said second forming mandrel, with the second sheet wrapped on its external surface, is aligned with said first forming mandrel along a common axis of insertion.
Method for forming a casing with a filter for smoking articles, said method comprising:
- forming said filter starting from a first sheet by means of at least one first forming mandrel rotatable around a first axis of rotation thereof;
- holding, by means of holding means, at least a first part of said first sheet on said first forming mandrel;
- wrapping a second sheet around an external surface of at least one second forming mandrel, so as to create said casing;
- positioning said first forming mandrel with said filter held by said holding means, and said second forming mandrel with the second sheet wrapped on its external surface, in alignment with each other along a common axis of insertion;
- and
- pushing, by means of said first forming mandrel, said filter along a through axial cavity created inside said second forming mandrel, performing a roto-translational movement around and along said first axis of rotation.
Method as in any claim from 13, wherein it comprises a step of extracting both said casing and also said filter from said second forming mandrel by means of a translational movement, along an axis of extraction, of an extraction device.
Dependencies are inferred from the claim text.