Unpleating system for machines for molding, filling, and automatic closing of flexible-film-based wrappings
AssigneeFlexico-France
InventorHenri Bois
Life of this patent
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Abstract
This invention relates to an unpleating system for machines for molding, filling, and automatic closing of flexible-film-based wrappings, characterized by the fact that it comprises two units capable of sequenced travel toward and away from the transverse welding plane, which units each hold at least one flexible jack bearing a pulling mechanism, the jack being slanted in relation to the transverse welding plane and the direction of travel of the units so that at the time of approach of the units toward the transverse welding plane, the jacks will be retracted and the pulling mechanisms automatically moved toward the outside.
Claims19
An unpleating system disposed about a longitudinal axis, defined at the intersection of two mutually orthogonal planes, along which flexible-film-based wrappings are formed, filled, and automatically closed, comprising:
- at least three units disposed within a circumferential array defined around said longitudinal axis, wherein each unit comprises a pulling means, disposed at a predetermined angle with respect to said mutually orthogonal planes, for exerting pulling forces, upon a flexible-film-based wrapping disposed along said longitudinal axis, which have force components disposed within planes parallel to both of said mutually orthogonal planes so as to remove any pleating present within said flexible-film-based wrapping.
Dependencies are inferred from the claim text.