Described is a machine for wrapping groups (1) of products in a roll, comprising: a packaging unit (2) positioned above a feed channel (3); a transfer element (5) configured for feeding, in a feed direction (V5), to the packaging unit (2) the groups (1) of products in a roll with a corresponding sheet of wrapping material (6); feed and positioning units (8) configured for feeding the sheet (6) of wrapping material inside the vertical channel (3), in a direction (T6) transversal to the direction (V5) for feeding the group (1) of products; the machine also comprises means (9) for controlled retaining and unwinding of the sheet (6) of wrapping material positioned along the vertical feed channel (3); a first movement unit (10) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9) from a position of free passage of the sheet (6) of wrapping material to a position for bilateral retaining of the sheet (6) of wrapping material positioned in the channel (3); a second movement unit (11) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9), located in the retaining position, so as to unwind the sheet (6) of wrapping material in a controlled manner and at the movement of the transfer element (5) from the first lower operating position to a second upper operating position.

Described is a machine for wrapping groups (1) of products in a roll, comprising: a packaging unit (2) positioned above a feed channel (3); a transfer element (5) configured for feeding, in a feed direction (V5), to the packaging unit (2) the groups (1) of products in a roll with a corresponding sheet of wrapping material (6); feed and positioning units (8) configured for feeding the sheet (6) of wrapping material inside the vertical channel (3), in a direction (T6) transversal to the direction (V5) for feeding the group (1) of products; the machine also comprises means (9) for controlled retaining and unwinding of the sheet (6) of wrapping material positioned along the vertical feed channel (3); a first movement unit (10) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9) from a position of free passage of the sheet (6) of wrapping material to a position for bilateral retaining of the sheet (6) of wrapping material positioned in the channel (3); a second movement unit (11) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9), located in the retaining position, so as to unwind the sheet (6) of wrapping material in a controlled manner and at the movement of the transfer element (5) from the first lower operating position to a second upper operating position.

Systems and methods of forming a mailpiece by folding an envelope sheet around one or more insert sheets (e.g., an insert stack) include creating the insert stack, staging the insert stack proximate to the transport path of the envelope sheet, dispensing the insert stack onto the envelope sheet, applying adhesive to the envelope sheet, using a buckle folder to wrap the envelope sheet at least partially around the insert stack to form an unsealed envelope without stopping the envelope sheet and without bending the insert stack, folding the envelope flap of the unsealed envelope onto the back thereof using a plow folder, and sealing the flap of the envelope to the back of the envelope, creating the mailpiece.

System (10) for automatically packaging items varying in size and number for shipment, comprising a unit (32) for acquiring size information of one or more item(s) to be packaged, an inner packaging material feeding unit (24) for feeding an inner packaging material, an outer packaging material feeding unit (26) for feeding an outer packaging material, a first wrapping station (16) for wrapping said inner packaging material around one or more item(s) to be packaged to create an inner packing surrounding the item(s) in a first direction and a second wrapping station (18) for wrapping said outer packaging material around said inner packing to create an outer packing surrounding the inner packing in a second direction, said second direction being substantially perpendicular to said first direction, wherein the first and the second wrapping stations are adapted to form said inner packing and said outer packing such that the inner and the outer packing form a combined package enclosing the packaged item(s) from all sides.

System (10) for automatically packaging items varying in size and number for shipment, comprising a unit (32) for acquiring size information of one or more item(s) to be packaged, an inner packaging material feeding unit (24) for feeding an inner packaging material, an outer packaging material feeding unit (26) for feeding an outer packaging material, a first wrapping station (16) for wrapping said inner packaging material around one or more item(s) to be packaged to create an inner packing surrounding the item(s) in a first direction and a second wrapping station (18) for wrapping said outer packaging material around said inner packing to create an outer packing surrounding the inner packing in a second direction, said second direction being substantially perpendicular to said first direction, wherein the first and the second wrapping stations are adapted to form said inner packing and said outer packing such that the inner and the outer packing form a combined package enclosing the packaged item(s) from all sides.

A stretch packaging machine is provided with a lift mechanism and a tray movement mechanism. The lift mechanism has a plurality of loading members on which a tray is loaded and which lift up the tray toward film such that the tray contacts the film sealing an opening at the top of the tray. The tray movement mechanism is configured to move the tray slidingly over the loading members of the lift mechanism to a predetermined position on the loading members. A frictional coefficient of at least first loading members is such that contact between the tray and the loading members disposed on the near side in the moving direction in which the tray is moved by the tray movement mechanism is smaller than the frictional coefficient of second loading members disposed on the far side in the moving direction.

A stretch packaging machine is provided with a lift mechanism and a tray movement mechanism. The lift mechanism has a plurality of loading members on which a tray is loaded and which lift up the tray toward film such that the tray contacts the film sealing an opening at the top of the tray. The tray movement mechanism is configured to move the tray slidingly over the loading members of the lift mechanism to a predetermined position on the loading members. A frictional coefficient of at least first loading members is such that contact between the tray and the loading members disposed on the near side in the moving direction in which the tray is moved by the tray movement mechanism is smaller than the frictional coefficient of second loading members disposed on the far side in the moving direction.

The system includes a packing machine and one or more video cameras to detect the quality of packs of tissue paper products, and/or of the wrapping sheet used for wrapping the packs. A control unit is provided to manage the detected images and, if necessary, to compare them with reference images.

System (10) for automatically packaging items varying in size and number for shipment, comprising a unit (32) for acquiring size information of one or more item(s) to be packaged, an inner packaging material feeding unit (24) for feeding an inner packaging material, an outer packaging material feeding unit (26) for feeding an outer packaging material, a first wrapping station (16) for wrapping said inner packaging material around one or more item(s) to be packaged to create an inner packing surrounding the item(s) in a first direction and a second wrapping station (18) for wrapping said outer packaging material around said inner packing to create an outer packing surrounding the inner packing in a second direction, said second direction being substantially perpendicular to said first direction, wherein the first and the second wrapping stations are adapted to form said inner packing and said outer packing such that the inner and the outer packing form a combined package enclosing the packaged item(s) from all sides.

System (10) for automatically packaging items varying in size and number for shipment, comprising a unit (32) for acquiring size information of one or more item(s) to be packaged, an inner packaging material feeding unit (24) for feeding an inner packaging material, an outer packaging material feeding unit (26) for feeding an outer packaging material, a first wrapping station (16) for wrapping said inner packaging material around one or more item(s) to be packaged to create an inner packing surrounding the item(s) in a first direction and a second wrapping station (18) for wrapping said outer packaging material around said inner packing to create an outer packing surrounding the inner packing in a second direction, said second direction being substantially perpendicular to said first direction, wherein the first and the second wrapping stations are adapted to form said inner packing and said outer packing such that the inner and the outer packing form a combined package enclosing the packaged item(s) from all sides.