Method and device for applying a plastic film around a product to be packaged
OwnerArno Haloilainventor
Life of this patent
Estimating the term…
Abstract
A method for applying a wrapping plastic film band (15) around a product (16) to be packaged, according to which method the wrapping plastic film band is wrapped to form a film girdle (18) around supporting elements (21), from where it is transferred to a position around the product (16) to be packaged. A device for applying a wrapping plastic film band around a product to be packaged comprises supporting elements (21, 22), upon which the wrapping plastic film band is wrapped, and transfer elements (21, 23) for transferring the film girdle to a position around the product to be packaged.
Claims14
A method for applying a plastic film (18) around a product (16) to be packaged, according to which method
- the product (16) to be packaged is moved in the wrapping support system (20) of the wrapping machine (10) to a position inside a plastic film girdle (18) of shrinkable and/or stretchable plastic placed on a supporting frame consisting of supporting elements (21) and having a circumference larger than the circumference of the product to be packaged, or correspondingly the plastic film girdle is moved to a position surrounding the product to be packaged,
- whereupon the supporting frame consisting of supporting elements (21) is removed from inside the plastic film girdle (18), thus allowing the plastic film girdle to tighten around the product (16) to be packaged,
- the plastic film girdle (18) is formed by winding shrinkable and/or stretchable wrapping plastic film band (15) to form a plastic film girdle (18) around the supporting frame consisting of supporting elements (21) and having a circumference larger than the circumference of the product (16) to be packaged,
- and that the supporting frame consisting of supporting elements (21) is removed from inside the plastic film girdle (18) and the plastic film girdle is allowed to tighten around the product to be packaged.
- characterized in
- forming in the wrapping support system (20) of the wrapping machine (10) a binding plastic film girdle (18) whose width is essentially smaller than the length of the product (16) to be packaged,
- binding together two or more pieces (16, 17) in the product (16) to be packaged so that the binding plastic film girdle (18) does not cover the whole length of the product (16) to be packaged,
- forming in advance the binding plastic film girdle (18) in the wrapping support system (20) of the wrapping machine (10) on the supporting elements (21) at the same time when the product (16) to be packaged is transferred towards the wrapping support system (20),
- transferring the product (16) to be packaged and/or the binding plastic film girdle (18) so that the area on the product, where the bandage is to be formed comes into a position aligned with the binding plastic film girdle (18), and
- allowing the binding plastic film girdle (18) to tighten around the product to be packaged so that only a part of the length of the product (16) to be packaged remains under the binding plastic film girdle.
A device (10) for applying a plastic film (18) around a product (16) to be packaged, said device comprising a wrapping support system (20) of a wrapping machine (10) having
- a supporting frame consisting of supporting elements (21) and having over it a plastic film girdle (18) of shrinkable and/or stretchable plastic, said girdle having a circumference larger than the circumference of the product (16) to be packaged,
- transfer elements (11, 22, 23) for transferring the product (16) to be packaged and/or the plastic film girdle (18) so that the product to be packaged remains inside the plastic film girdle,
- means (22, 23) for removing the supporting elements (21) from inside the plastic film girdle (18), allowing the plastic film girdle to tighten around the product (16) to be packaged,
- a wrapping system (12,13) for wrapping a shrinkable and/or stretchable plastic film band (15) from a film reel (14) over the supporting elements (21) so that the wrapping film band being wrapped forms on the supporting elements a plastic film girdle (18) tightening over the product (16) to be packaged,
- and transfer elements (11, 22, 23) for transferring the product (16) to be packaged and/or the plastic film girdle (18) formed from the wrapping plastic film band (15) so that the product to be packaged remains inside the plastic film girdle,
- characterized in
- that the wrapping support system (20) of a wrapping machine (10) comprising a wrapping system (12, 13), which is arranged to wrap shrinkable and/or stretchable plastic film band (15) for forming a binding plastic film girdle (18) in order to bind together two or more pieces (16, 17) in the product (16) to be packaged,
- that the width of the binding plastic film girdle (18) being essentially smaller than the length of the product (16) to be packaged so that the binding plastic film girdle does not cover the whole length of the product to be packaged,
- that the transfer elements (11, 22, 23) are arranged to transfer the product (16) to be packaged towards the wrapping support system (20) while the binding plastic film girdle (18) is wrapped in advance in the wrapping support system (20) of the wrapping machine (10) on the supporting elements (21), and
- that the transfer elements (11, 22, 23) and the supporting elements (21) are arranged to transfer the binding<plastic film girdle (18) so that the area on the product, where the bandage is to be formed comes into a position aligned with the binding plastic film girdle (18), and allow the binding plastic film girdle (18) to tighten around the product to be packaged so that only a part of the length of the product (16) to be packaged remains under the binding plastic film girdle.
Dependencies are inferred from the claim text.