The wrapping machine includes a feed path of products to be wrapped in a wrapping sheet and, along the feed path, an insertion station of products to be wrapped in a wrapping sheet and folding members of the wrapping sheet. The machine further includes a conveyor device, which receives the products in the insertion station and causes their feed through the folding members. The conveyor device includes a system of endless flexible members formed by toothed belts guided around toothed wheels. Each toothed belt includes a first series of internal teeth, cooperating with toothed guide wheels, and a second series of external teeth, cooperating with connection elements of carriages that carry prongs for feeding the products to be wrapped. The connection elements include toothed profiles complementary to the external teeth of the toothed belts, suitable to provide a shape coupling with the external teeth of the respective toothed belts.

The wrapping machine includes a feed path of products to be wrapped in a wrapping sheet and, along the feed path, an insertion station of products to be wrapped in a wrapping sheet and folding members of the wrapping sheet. The machine further includes a conveyor device, which receives the products in the insertion station and causes their feed through the folding members. The conveyor device includes a system of endless flexible members formed by toothed belts guided around toothed wheels. Each toothed belt includes a first series of internal teeth, cooperating with toothed guide wheels, and a second series of external teeth, cooperating with connection elements of carriages that carry prongs for feeding the products to be wrapped. The connection elements include toothed profiles complementary to the external teeth of the toothed belts, suitable to provide a shape coupling with the external teeth of the respective toothed belts.

An airtight wrapper having an assembly wrapped by a wrapping sheet made of a weldable material creating a group of smoking articles obtained by: positioning the folded wrapping sheet to contact walls, front rear and head wall of the assembly, with flaps protruding beyond bottom and lateral walls; welding lower and upper flaps, and defining a transverse edge; folding the welded transverse edge rotating it by 180° toward the front wall; folding the upper and lower transverse flaps; folding the upper and lower transverse flaps; folding the rear and front longitudinal flaps, and partly also the transverse edge, toward the lower lateral walls, overlapping one on top of the other above the transverse flaps, and finally welding them to seal the airtight wrapper.

A machine for packaging soft products, including a conveyor defining a ring-shaped path having an active linear lower branch facing a feed plane and a non-active linear upper branch Each of a plurality of carriages supports a tooth, projecting towards the feed plane during the passage on the lower branch. A transfer device moves one group of products at a time, with a corresponding sheet of wrapping material folded around the group, towards the feed plane and to a receiving compartment defined by a first and a second tooth, along a second direction transversal to a first direction. Along the lower linear branch there are a number of teeth equal to the number of groups positioned or arrived on the feed plane. Each tooth is configured to define simultaneously a pushing tooth and a tooth containment when the tooth is interposed between two groups along the feed plane.

A machine for packaging soft products, including a conveyor defining a ring-shaped path having an active linear lower branch facing a feed plane and a non-active linear upper branch Each of a plurality of carriages supports a tooth, projecting towards the feed plane during the passage on the lower branch. A transfer device moves one group of products at a time, with a corresponding sheet of wrapping material folded around the group, towards the feed plane and to a receiving compartment defined by a first and a second tooth, along a second direction transversal to a first direction. Along the lower linear branch there are a number of teeth equal to the number of groups positioned or arrived on the feed plane. Each tooth is configured to define simultaneously a pushing tooth and a tooth containment when the tooth is interposed between two groups along the feed plane.

A machine for the packaging of paper rolls with a packaging sheet, including a station for the entry of the rolls to be packaged and the packaging sheet, folding elements for the upper and lower edges of each packaging sheet around the rolls to be packaged, lateral folding elements for folding the packaging sheet on the lateral ends, elements for the thermal welding of the packaging sheet at the folds, handling elements for moving the rolls along a predetermined direction, and an exit station for the packages, where the lateral folding elements include a plurality of independent lateral folding devices moved along two horizontal circuits and more lateral folding devices of a same circuit can be placed side by side.

A machine for the packaging of paper rolls with a packaging sheet, including a station for the entry of the rolls to be packaged and the packaging sheet, folding elements for the upper and lower edges of each packaging sheet around the rolls to be packaged, lateral folding elements for folding the packaging sheet on the lateral ends, elements for the thermal welding of the packaging sheet at the folds, handling elements for moving the rolls along a predetermined direction, and an exit station for the packages, where the lateral folding elements include a plurality of independent lateral folding devices moved along two horizontal circuits and more lateral folding devices of a same circuit can be placed side by side.

The machine for packaging groups of products in a wrapping sheet, includes a device for spreading a wrapping sheet and a handling device, adapted to reciprocally move a group of products to be packaged and the wrapping sheet, so as to wrap the wrapping sheet around the group of products as a result of the reciprocal movement between the wrapping sheet and group of products. The machine further includes temporary support members adapted to support flaps of the wrapping sheet protruding with respect to the group of products during a step of reciprocal movement between the group of products to be packaged and the wrapping sheet.

The machine for packaging groups of products in a wrapping sheet, includes a device for spreading a wrapping sheet and a handling device, adapted to reciprocally move a group of products to be packaged and the wrapping sheet, so as to wrap the wrapping sheet around the group of products as a result of the reciprocal movement between the wrapping sheet and group of products. The machine further includes temporary support members adapted to support flaps of the wrapping sheet protruding with respect to the group of products during a step of reciprocal movement between the group of products to be packaged and the wrapping sheet.

The machine includes a device for spreading a wrapping sheet and an elevator, adapted to move a roll to be wrapped with respect to the wrapping sheet, so as to wrap the wrapping sheet around the roll as a result of the movement between the wrapping sheet and the roll. The machine further includes members adapted to reduce the formation of creases in the wrapping sheet during the movement of the roll with respect to the wrapping sheet.