公开(公告)号：US10302418B2

公开(公告)日：2019-05-28

申请号：US15777125

申请日：2016-11-17

Applicant: G.D S.p.A.

Inventor： Alberto Casagrande ,  Sergio Morelli ,  Gilberto Spirito ,  Luca Federici

IPC: G01B11/24 ,  G01B11/25 ,  A24C5/34 ,  G01B11/245

Abstract: An inspection group is proposed for inspecting cylinder-shaped elongated elements for smoking articles, in which a working plane is selected passing through a longitudinal axis of a first elongated element and there are considered a first half space and a second half space arranged on opposite parts with respect to the working plane. The inspecting group includes: a projecting device adapted to project a first stripe of light from the first half space onto an inspection portion of an external surface of the first elongated element and to obtain a first three-dimensional light trace, and also adapted to project a second stripe of light from the second half space onto the inspection portion to obtain a second three-dimensional light trace; an optical assembly adapted to frame the first elongated element and to process a first view and a second view; a processing device adapted to reconstruct a first closed curved section profile of the first elongated element processing an identified first curved light line in the first view and a second identified curved light line in the second view and comparing the first reconstructed closed curved profile with an ideal section profile to identify possible deformations of the reconstructed first closed curved profile with respect to the ideal section profile. The projecting device includes a single projector of a single stripe of light; a shield, arranged between the single projector and the first elongated element, adapted to split the single stripe of light into a first part of a stripe of light and into a second part of a stripe of light; first deflectors of the first part of a stripe of light arranged in the first half space and second deflectors of the second part of the stripe of light arranged in the second half space to obtain respectively the first stripe of light projected from the first half space and the second stripe of light projected from the second half space by a single stripe of light.

公开(公告)号：US20180328723A1

公开(公告)日：2018-11-15

申请号：US15777125

申请日：2016-11-17

Applicant: G.D S.p.A.

Inventor： Alberto Casagrande ,  Sergio Morelli ,  Gilberto Spirito ,  Luca Federici

IPC: G01B11/24 ,  G01B11/25 ,  A24C5/34

CPC classification number: G01B11/2408 ,  A24C5/3412 ,  G01B11/245 ,  G01B11/25

Abstract: An inspection group is proposed for inspecting cylinder-shaped elongated elements for smoking articles, in which a working plane is selected passing through a longitudinal axis of a first elongated element and there are considered a first half space and a second half space arranged on opposite parts with respect to the working plane. The inspecting group includes: a projecting device adapted to project a first stripe of light from the first half space onto an inspection portion of an external surface of the first elongated element and to obtain a first three-dimensional light trace, and also adapted to project a second stripe of light from the second half space onto the inspection portion to obtain a second three-dimensional light trace; an optical assembly adapted to frame the first elongated element and to process a first view and a second view; a processing device adapted to reconstruct a first closed curved section profile of the first elongated element processing an identified first curved light line in the first view and a second identified curved light line in the second view and comparing the first reconstructed closed curved profile with an ideal section profile to identify possible deformations of the reconstructed first closed curved profile with respect to the ideal section profile. The projecting device includes a single projector of a single stripe of light; a shield, arranged between the single projector and the first elongated element, adapted to split the single stripe of light into a first part of a stripe of light and into a second part of a stripe of light; first deflectors of the first part of a stripe of light arranged in the first half space and second deflectors of the second part of the stripe of light arranged in the second half space to obtain respectively the first stripe of light projected from the first half space and the second stripe of light projected from the second half space by a single stripe of light.

公开(公告)号：US10299506B2

公开(公告)日：2019-05-28

申请号：US15777116

申请日：2016-11-17

Applicant: G.D S.p.A.

Inventor： Alberto Casagrande ,  Sergio Morelli ,  Gilberto Spirito ,  Luca Federici

IPC: A24C5/34 ,  G01B11/24 ,  G01B11/245 ,  G01B11/25

Abstract: A method is proposed for inspecting cylinder-shaped elongated elements for smoking articles that provides projecting from a first half-space a first stripe of light onto an external face of a first elongated element and projecting from a second half-space onto the first elongated element a second stripe of light. The method reconstructs, by means of a first identified curved line and a second identified curved line respectively in a first acquired view and in a second acquired view of the first elongated element, a first closed curved section profile of the first elongated element and identifies possible deformations of the reconstructed first closed curved profile with respect to an ideal section profile. The method further includes the step of arranging an ideal elongated element alongside the first elongated element, respectively in a reference position and in a first position, inspecting simultaneously the first elongated element and the ideal elongated element by the first stripe of light and the second stripe of light; reconstructing, by a first identified curved line and a second identified curved line respectively in the first view and in the second view a first closed curved section profile of the ideal elongated element; monitoring the reconstructed closed curved profile of the ideal elongated element generating a warning if the reconstructed closed curved profile of the ideal elongated element is different from an ideal section profile, for example circular.

公开(公告)号：US20180332888A1

公开(公告)日：2018-11-22

申请号：US15777116

申请日：2016-11-17

Applicant: G.D S.p.A.

Inventor： Alberto Casagrande ,  Sergio Morelli ,  Gilberto Spirito ,  Luca Federici

IPC: A24C5/34 ,  G01B11/24 ,  G01B11/245

CPC classification number: A24C5/3412 ,  G01B11/2408 ,  G01B11/245 ,  G01B11/25

Abstract: A method is proposed for inspecting cylinder-shaped elongated elements for smoking articles that provides projecting from a first half-space a first stripe of light onto an external face of a first elongated element and projecting from a second half-space onto the first elongated element a second stripe of light. The method reconstructs, by means of a first identified curved line and a second identified curved line respectively in a first acquired view and in a second acquired view of the first elongated element, a first closed curved section profile of the first elongated element and identifies possible deformations of the reconstructed first closed curved profile with respect to an ideal section profile. The method further includes the step of arranging an ideal elongated element alongside the first elongated element, respectively in a reference position and in a first position, inspecting simultaneously the first elongated element and the ideal elongated element by the first stripe of light and the second stripe of light reconstructing, by a first identified curved line and a second identified curved line respectively in the first view and in the second view a first closed curved section profile of the ideal elongated element monitoring the reconstructed closed curved profile of the ideal elongated element generating a warning if the reconstructed closed curved profile of the ideal elongated element is different from an ideal section profile, for example circular.