Wrapping machine

Abstract

A wrapping machine for wrapping groups of products (100) with an extensible plastic film (50) in order to form bundles (200), comprises first conveyor means (2) for supporting and moving a group of products (100) along an advancing direction (A) inside the wrapping machine (1), supporting means (3; 103) for receiving from the first conveyor means (2) and supporting the group of products (100), a wrapping unit (10) for wrapping a portion (51) of film (50) having a preset length around the group of products (100), supported by the supporting means (3; 103), in order to form a bundle (200), a supplying unit (30) of the film (50) to supply the wrapping unit (10) with the film portion (51) having a preset length, separated from the film (50) unwound from a respective reel (55); the supporting means (3; 103) include first gripping means (4; 104) arranged to hold an initial flap (51a) of the film portion (51) during the wrapping of the group of products (100); containment means (6; 60) are provided to abut at least sidewalls of the group of products (100) in order to support and guide said products (100) when moved along the advancing direction (A) through the wrapping unit (10) and / or tosupport and restrain the group of products (100) during the wrapping with the portion (51) of film (50).

Description

technical field [0001] The present invention relates to a packaging machine for packaging products with a plastic film, in particular a packaging machine arranged to pack groups of products into bundles through an extensible plastic film. Background technique [0002] Packaging machines are known, so-called shrink-wrappers, which allow packaging of groups of products of different shapes and sizes (such as bottles, jars, jars, cans, etc.) with films made of heat-shrinkable plastic material , the film is a material that shrinks when heated in order to wrap, compress and hold the product to form a bundle or pack. [0003] Known shrink-wrapping machines generally comprise a conveyor system that continuously moves the product to be packaged through a series of operating stations. Downstream of the composition station, in which the products are divided into groups according to the required composition and separated in groups (e.g. according to two or more rows of two or more Gro...

AI Technical Summary

Problems solved by technology

[0013] A disadvantage of the known packaging devices disclosed above is that they do not allow the use of printed films during the packaging of groups of products into bundles

Specifically, the packaging apparatus of the above-described apparatus including a rotating ring supporting a roll of film cannot position in a precise and repeatable manner the portion of film that is unwound and separated from the roll and wrapped around the product

[0014] Another disadvantage of the packaging equipment described above is the small operating autonomy due to the small size of the film roll, which is supported and rotated around the product by a rotating ring

Consequently, more or less extended times are required for frequent machine stops and associated production interruptions in order to replace spent film reels

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