Process and apparatus for wrapping articles with stretchable film
AssigneeA.W.A.X. Progetazione e Ricerca S.r.l.
InventorsAngelo Cappi, Renato Rimondi
Life of this patent
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Abstract
The film (F) fed to the packaging machine has a width suitable for wrapping articles whose sizes may vary over a wide range, and its width is made proportionate to the largest size of article which the machine can wrap. For the wrapping of articles whose dimensions are smaller than the maximum ones acceptable by the machine, the width of the film is modified as required to suit the dimensions of the article to be wrapped, by a pleating process (9-12-112-29-129-229) such that the longitudinal axis of the pleats lies in the direction of the length of the section of film introduced into the wrapping station.
Claims11
A process for wrapping a plurality of articles each having different dimensions using a stretchable film comprising the steps of:
- determining the largest width dimension of said plurality of articles to be wrapped;
- measuring dimensions of the specific article to be wrapped;
- adapting width of the film proportionally to sections of the said specific article having smaller widths than said largest width dimension by forming pleats in said film in a direction longitudinal to a length of the film;
- and
- feeding said pleated film to a wrapping station where said film is folded onto the article.
An apparatus for wrapping articles having different dimensions using a stretchable film comprising;
- means for determining the largest width dimension of said plurality of articles to be wrapped;
- measuring means for measuring dimensions of the specific article to be wrapped;
- pleating means for adapting width of the film proportionally to sections of the said specific article having smaller widths than said largest width dimension by forming pleats in said film in a direction longitudinal to a length of the film;
- and
- feeding means for receiving the film from the pleating means and feeding said pleated film to a wrapping station, including means for folding said film onto the article.
Dependencies are inferred from the claim text.