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1. WO2020115643 - METHOD AND APPARATUS FOR WRAPPING A LOAD AND WRAPPING MACHINE

Publication Number WO/2020/115643
Publication Date 11.06.2020
International Application No. PCT/IB2019/060380
International Filing Date 03.12.2019
IPC
B65B 11/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
11Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
02Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
B65B 11/58 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
11Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
58Applying two or more wrappers, e.g. in succession
Applicants
  • AETNA GROUP S.P.A. [IT]/[IT]
Inventors
  • VACCARI, Massimiliano
Agents
  • CICCONETTI, Andrea
Priority Data
10201800001078204.12.2018IT
10201900000829806.06.2019IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) METHOD AND APPARATUS FOR WRAPPING A LOAD AND WRAPPING MACHINE
(FR) PROCÉDÉ ET APPAREIL POUR L'EMBALLAGE D'UNE CHARGE, ET MACHINE D'EMBALLAGE
Abstract
(EN)
A method for wrapping a load (150) with a film of stretchable plastic material, comprises unwinding a first film (51) of stretchable plastic material from a first reel (61) and at least one second film (52) of stretchable plastic material from a respective second reel (62); superimposing the at least one second film (52) to the first film (51) so as to form a longitudinal overlapping band (L) of the two films (51, 52); stretching by a couple of pre-stretching rollers (11, 12) the first film (51) and the at least one second film (52) superimposed along the longitudinal overlapping band (L) with a definite stretching percentage so as to obtain a single composite film (50) formed by the first film (51) and the at least one second film (52) joined and sticking tightly to each other at the overlapping band (L) due to the effect of said stretching; wrapping the load (150) with a plurality of bands of the composite film (50).
(FR)
L'invention concerne un procédé d'emballage d'une charge (150) avec un film de matière plastique étirable, comprenant le déroulement d'un premier film (51) de matière plastique étirable à partir d'une première bobine (61) et d'au moins un second film (52) de matière plastique étirable à partir d'une seconde bobine respective (62) ; la superposition du ou des seconds films (52) au premier film (51) de manière à former une bande de chevauchement longitudinale (L) des deux films (51, 52) ; l'étirage par une paire de rouleaux de pré-étirage (11, 12) du premier film (51) et du ou des seconds films (52) superposés le long de la bande de chevauchement longitudinale (L) avec un pourcentage d'étirage défini de façon à obtenir un film composite unique (50) formé par le premier film (51) et le ou les seconds films (52) joints et collés étroitement l'un à l'autre au niveau de la bande de chevauchement (L) en raison de l'effet dudit étirage ; l'emballage de la charge (150) avec une pluralité de bandes du film composite (50).
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