I.m.a. Industria Macchine Automatiche S.p.a.

Manuel Buscaroli

Sauro Rivola

A machine for forming filter bags for infusion products includes a first carousel including a plurality of first stations for operating on pieces of filtering material. A transfer device transfers the pieces to a second carousel. The transfer device includes a first wheel, rotatable parallel to the carousels, and including units for receiving from the first stations and releasing to the second carousel, the pieces. Each receiving unit includes 1) first gripping and stabilising devices for retaining the pieces upright and positioned with a free head end directed towards the axis of the first wheel and 2) second gripping devices for positioning and retaining a tag on the piece, fed from a corresponding feeding station, to release to the second carousel the piece with a corresponding tag alongside the free head end of the piece.

Machine for forming filter bags for infusion products

A machine for forming filter bags for infusion products includes a carousel and a transfer wheel with a plurality of gripping devices. A plurality of control devices control the gripping devices between a first operating position for receiving a filter bag from the carousel or for releasing the filter bag in a collection zone, and a second operating position for retaining the filter bag. A control unit measures defects in the filter bags. An auxiliary control device is located on the transfer wheel and connected to the control unit for controlling, selectively, the passage from a second operating retaining position to a first release position on a predetermined gripping device and along an angular stretch of rotation of the transfer wheel, at a control signal of the control unit generated in the presence of a defective filter bag, to release the defective filter bag in a different collecting zone.

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Ozzano Dell'Emilia, Italy

Manuel Buscaroli