A mattress packaging device includes a first packaging device and a second packaging device, where the first packaging device includes a first folding and vertical sealing mechanism and two corner sealing mechanisms, the first folding and vertical sealing mechanism is configured for folding and vertically sealing a packaging material opening at the end of a mattress, and the corner sealing mechanisms are configured for folding and transversely sealing front corner and rear corner of packaging material on two sides of the mattress; the second packaging device includes two second folding and vertical sealing mechanisms and two first transverse sealing mechanisms, the second folding and vertical sealing mechanisms are configured for folding and vertically sealing the packaging material on two sides of the mattress, and the two first transverse sealing mechanisms are configured for transversely sealing the packaging material on two sides of the mattress.

A method of combining groups of articles to form packaging units includes wrapping a packaging unit along a running direction thereof on a transporting path with a sheet material, concurrently with the wrapping, forming a sheet-material overlap and folding flaps that each project beyond the packaging unit along transverse peripheries thereof, positioning the folding flaps against the packaging unit as the packaging unit passes through a folding unit, and fixing the folding flaps to each other, thereby forming a sheet-material wrapper that is closed on all sides.

A method of combining groups of articles to form packaging units includes wrapping a packaging unit along a running direction thereof on a transporting path with a sheet material, concurrently with the wrapping, forming a sheet-material overlap and folding flaps that each project beyond the packaging unit along transverse peripheries thereof, positioning the folding flaps against the packaging unit as the packaging unit passes through a folding unit, and fixing the folding flaps to each other, thereby forming a sheet-material wrapper that is closed on all sides.

A heating unit for heating a continuous web, includes a heating roller rotating about an axis of rotation and having an outer surface comprising a pattern of thermally conductive areas and thermally insulating areas, and at least one induction heater electromagnetically coupled to the thermally conductive areas of the outer surface of the heating roller.

A heating unit for heating a continuous web, includes a heating roller rotating about an axis of rotation and having an outer surface comprising a pattern of thermally conductive areas and thermally insulating areas, and at least one induction heater electromagnetically coupled to the thermally conductive areas of the outer surface of the heating roller.

Manipulator for manipulating over-edges of a plastic film wrapped on containers for making a bundle of containers of the type including a vertical support rod provided with a motorization for rotating around own vertical axis. The rod supports a mechanism for stretching and drawing said over-edges alongside said containers; and a device for pressing the over-edges against the containers. The device for stretching and for drawing alongside and he device for pressing are arranged one above the other along the development of the vertical support rod.

Manipulator for manipulating over-edges of a plastic film wrapped on containers for making a bundle of containers of the type including a vertical support rod provided with a motorization for rotating around own vertical axis. The rod supports a mechanism for stretching and drawing said over-edges alongside said containers; and a device for pressing the over-edges against the containers. The device for stretching and for drawing alongside and he device for pressing are arranged one above the other along the development of the vertical support rod.

The present invention relates to a device for sealing a packaging material (10), comprising at least one sealing installation (18) which comprises at least one coil core (24) which is surrounded by at least one coil (25), wherein the coil core (24) has at least one gap (32) through which packaging material peripheries (34, 36) to be sealed are guided, wherein at least one element (23) that conducts a magnetic flux is provided, said element (23) for influencing a region (22) of the packaging material peripheries (34, 36) to be heated being disposed so as to be adjacent to the packaging material peripheries (34, 36) to be sealed.

The present invention relates to a device for sealing a packaging material (10), comprising at least one sealing installation (18) which comprises at least one coil core (24) which is surrounded by at least one coil (25), wherein the coil core (24) has at least one gap (32) through which packaging material peripheries (34, 36) to be sealed are guided, wherein at least one element (23) that conducts a magnetic flux is provided, said element (23) for influencing a region (22) of the packaging material peripheries (34, 36) to be heated being disposed so as to be adjacent to the packaging material peripheries (34, 36) to be sealed.

A packaging machine for placing articles into a carton includes rotating flight assemblies that receive a carton or carton blank, and rotate the carton blank and carton with articles while the flight assemblies move downstream. The flight assemblies each include two fixed segments and one segment that includes a block and associated bracket that rotate as the flight assembly is pulled through the machine by a conveying system. A method includes carton blanks being fed by a carton feeder onto the flight assemblies. Articles are formed into an article group, which is then placed onto a carton blank. As the blank and article group move in a downstream direction, the side panels of the carton blank are wrapped around the article group and the carton and article group are rotated to assist in closing the carton end flaps.