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1. WO2009010910 - SHRINK WRAPPING APPARATUS AND METHOD

Publication Number WO/2009/010910
Publication Date 22.01.2009
International Application No. PCT/IB2008/052804
International Filing Date 11.07.2008
IPC
B65B 11/10 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
06Wrapping articles, or quantities of material, by conveying wrapper and contents in defined paths
08in a single straight path
10to fold the wrappers in tubular form about contents
B65B 1/06 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
1Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans or jars
04Methods of, or means for, filling the material into the containers or receptacles
06by gravity flow
CPC
B65B 11/10
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
06Wrapping articles, or quantities of material, by conveying wrapper and contents in ; common; defined paths
08in a single straight path
10to fold the wrappers in tubular form about contents
B65B 53/063
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
53Shrinking wrappers, containers, or container covers during or after packaging
02by heat
06supplied by gases, e.g. hot-air jets
063Tunnels
B65B 61/06
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
61Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
04for severing webs, or for separating joined packages
06by cutting
Applicants
  • SINGER, Alec [ZA]/[ZA]
Inventors
  • SINGER, Alec
Agents
  • TRUTER, Kenneth Colin
Priority Data
2007/0576313.07.2007ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SHRINK WRAPPING APPARATUS AND METHOD
(FR) APPAREIL D'EMBALLAGE PAR RÉTRACTION ET PROCÉDÉ D'EMBALLAGE PAR RÉTRACTION
Abstract
(EN)
Shrink wrapping apparatus is disclosed which comprises a conveyor (16) comprising an apertured belt for supporting articles A to be wrapped and for conveying wrapped articles through a shrink tunnel (14). Belts (48) are provided suspending a sheet of shrink wrap film F as a curtain in the path of an article to be wrapped. The article A presses against the curtain as it moves onto the conveyor belt whereby the sheet lies against the bottom face, front face and top face of the article. A blade (56) moves up and down and inserts the part of the sheet which trails behind the article through a transversely extending slit defined by the conveyor belt. A carriage (60) comprising two horizontally spaced transversely extending upper guides (62,64) and a lower guide (66) is provided. The part of the conveyor belt extending between the upper guides (62,64) is entrained around the lower guide (66). The carriage in use is displaced in a forward motion at a speed faster than the rate of travel of the belt thereby to overlap the trailing part of the sheet with the part of the sheet that lies between the article and the belt.
(FR)
L'invention concerne un appareil d'emballage par rétraction qui comprend un transporteur (16) comprenant une courroie à ouvertures destinée à supporter des articles A devant être emballés et destinée à transporter des articles emballés à travers un tunnel chauffant (14). Des courroies (48) sont prévues, suspendant une feuille de film d'emballage par rétraction F sous la forme d'un rideau dans le trajet d'un article devant être emballé. L'article (A) appuie contre le rideau à mesure qu'il se déplace sur la courroie transporteuse, ce par quoi la feuille repose contre la face inférieure, la face avant et la face supérieure de l'article. Une lame (56) se déplace vers le haut et vers le bas et introduit la partie de la feuille qui traîne derrière l'article à travers une fente s'étendant transversalement définie par la courroie transporteuse. Un chariot (60), comprenant deux guides supérieurs s'étendant transversalement (62, 64) espacés horizontalement et un guide inférieur (66), est prévu. La partie de la courroie transporteuse s'étendant entre les guides supérieurs (62, 64) est entraînée autour du guide inférieur (66). Le chariot est déplacé, lors de l'utilisation, dans un mouvement vers l'avant à une vitesse supérieure à la vitesse de déplacement de la courroie, pour amener ainsi la partie arrière de la feuille à chevaucher la partie de la feuille qui repose entre l'article et la courroie.
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