Device and process for packaging products in a stretchable plastic film
AssigneeMinipack-Torre S.p.A.
InventorFrancesco Torre
Life of this patent
Estimating the term…
Abstract
A process and a device are disclosed for packaging products in a stretchable plastic film; the device comprises: means for supporting and heating a product; means for supplying and clamping the film in a position overlaying the product; means for contacting and adhering the film, when stretched, to the product; means for cutting the film along its still not-free side; means for locking and releasing the cut film in stretched contact with the product; means for bending and adhering the film to the product through a bending action on the whole product perimeter; means for removing the packaged product; and control means for the device.
Claims46
A process for packaging products in a stretchable plastic film, wherein the process comprises:
- a. supporting and simultaneously heating one of the products to be packaged on a lower abutment side of the product;
- b. supplying the film from a storage means in a position overlaying the product to be packaged;
- c. clamping the film in the position overlaying the product to be packaged;
- d. contacting the clamped film with the product to be packaged as to adhere the film to the product in a stretched position;
- e. cutting the film in stretched contact with the product along the side of the film which is not adhered to the product;
- f. releasing the cut film in stretched contact with the product;
- g. bending the film under the product through a bending action on a whole lower perimeter of the product, the bending step allowing the film to adhere to the product on the product lower heated abutment side by sealing together the four edges of the film;
- and
- h. removing die product packaged in the film.
A device for packaging products in a stretchable plastic film, comprising:
- a. means for simultaneously supporting one of the products to be packaged and for heating a lower abutment side of the products to be packaged;
- b. means for supplying the film from storage means in a position overlaying the product to be packaged;
- c. means for clamping the film in the position overlaying the product to be packaged;
- d. means for contacting the clamped film with the product to be packaged, in such a way as to adhere the film to the product in a stretched position;
- e. means far cutting the film in stretched contact with the product along the product side that is still not connected to the film coming from the storage means;
- f. means for releasing the cut film in stretched contact with the product;
- g. means for bending the film under the product through a bending action on a whole lower perimeter of the product, the bending means allowing the film to adhere to the product on the product lower heated abutment side;
- h. means for removing the product packaged in the film;
- and
- i. control means for checking the operations of the device.
Dependencies are inferred from the claim text.