Wrapping machine

A wrapping machine for wrapping groups of products with an extensible plastic film in order to form bundles, the wrapping machine comprising:

• a first conveyor for supporting and moving a group of products along an advancing direction inside the wrapping machine;
• a supporting device for receiving from said first conveyor and for supporting the group of products and a first gripping device arranged to hold an initial flap of a film portion of the extensible plastic film when wrapping the group of products;
• a wrapping unit for wrapping the film portion having a preset length around the group of products, supported by said supporting device, in order to form a bundle;
• a supplying unit of the extensible plastic film for supplying said wrapping unit with the film portion having the preset length, separated from the extensible plastic film unwound from a respective reel;
• a containment device arranged to abut at least sidewalls of the group of products so as to support and guide the group of products when the group of products are moved along the advancing direction through said wrapping unit and/or to support and restrain the group of products during the wrapping with the film portion;
• and
• a further pushing device acting upstream of the group of products, which are partially introduced inside said wrapping unit by a pushing device of said first conveyor, and arranged to push the group of products until the group of products are compacted against abutting doors of said containment device that are positioned in a closing position.

A wrapping machine for wrapping groups of products with an extensible plastic film in order to form bundles, the wrapping machine comprising:

• a first conveyor for supporting and moving a group of products along an advancing direction inside the wrapping machine;
• a supporting device for receiving from said first conveyor and for supporting a group of products and a first gripping device arranged to hold an initial flap of a film portion of the extensible plastic film when wrapping the group of products;
• a wrapping unit for wrapping the film portion having a preset length around the group of products, supported by said supporting device, in order to form a bundle;
• a supplying unit of the extensible plastic film for supplying said wrapping unit with the film portion having the preset length, separated from the extensible plastic film unwound from a respective reel;
• a containment device arranged to abut at least sidewalls of the group of products so as to support and guide the group of products when the group of products are moved along the advancing direction through said wrapping unit and/or to support and restrain the group of products during the wrapping with the film portion;
• and
• a guiding assembly for abutting sidewalls of the bundle and guiding the bundle exiting from said wrapping unit and disengaging from said supporting device,
• wherein said guiding assembly is movable along the advancing direction between a seizing position, where said guiding assembly abuts the bundle inside said wrapping unit, and a releasing position, where said guiding assembly is spaced from said wrapping unit.