Method and apparatus for joining coaxial rod-shaped articles

US4445519A · kind A · utility

Assignee

• Hauni-Werke Korber & Co. K.G. · DE

Inventors

• Werner Hinz · Bischofswerda, DE
• Gerhard Tolasch · Bargteheide, DE

Key dates

• Filing date: Feb 8, 1982
• Grant date: May 1, 1984
• Expiry date: Feb 8, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24C5/471
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Groups of coaxial filter rod sections and plain cigarettes are delivered onto the peripheral surface of a rotary drum in such orientation that each group extends in parallelism with the axis of the drum and overlies the adhesive coated outer side of a discrete uniting band which adheres to the surface by suction and is formed on the drum in such a way that its leader overlies a groove in the surface. The cigarettes of each group are attracted to the drum by suction, and the sections of the groups are mechanically urged against the leaders of the respective bands by claws which are retractible into and extendable from the drum by one or more stationary cams, followers which track the cams and gears which receive motion from the followers and rotate discs having eccentric pins coupling them to the respective claws. The claws are disengaged from the respective sections, and the ports in the surface of the drums cease to attract the cigarettes and the bands before the groups reach a rolling gap wherein they rotate about their respective axes and convolute the bands around the respective sections and the adjacent end portions of the cigarettes. The claws prevent misorientation or separa…