Abstract: A coupling device for coupling a component to an article includes a first retaining member that retains the component, a second retaining member that retains the article, a movement system for moving the first retaining member and the second retaining member between a non-operating position where the component and the article are spaced apart from one another, and an operating position where the component and the article are in a coupling position, and a detection system for detecting the positioning of the component on the first retaining member. The detection system includes an image detector device for capturing at least one image of the component when the component is retained by the first retaining member, and a processing unit provided for analysing the image captured by the image detector device and verifying if the component is retained on the first retaining member in a predefined position.

Abstract: A method and machine for folding sheets of packing material about respective groups of cigarettes to form respective packages, and wherein a web of packing material is first fed through a control station for detecting the position of a reference mark made on the web at a work station upstream from the control station, and is then fed through a cutting station where the web is cut into sheets of packing material, each of which is fed to a packing station where each sheet of packing material is folded about the respective group of cigarettes.

Abstract: A method and machine for folding sheets of packing material about respective groups of cigarettes to form respective packages, and wherein a web of packing material is first fed through a control station for detecting the position of a reference mark made on the web at a work station upstream from the control station, and is then fed through a cutting station where the web is cut into sheets of packing material, each of which is fed to a packing station where each sheet of packing material is folded about the respective group of cigarettes.