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1. WO1990007452 - AUTOMATIC PROCESS FOR MANUFACTURING, FILLING AND EVACUATING LARGE TUBE-BOTTOM-TYPE CONTAINERS AND MACHINE FOR REALIZING THE PROCESS

Publication Number WO/1990/007452
Publication Date 12.07.1990
International Application No. PCT/EP1989/001553
International Filing Date 16.12.1989
IPC
B65B 31/02 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
31Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
02Filling, closing, or filling and closing, containers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
B65B 9/20 2012.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
9Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
10Enclosing successive articles or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
20the webs being formed into tubes in situ around the filling nozzles
CPC
B65B 31/024
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
31Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
02Filling, closing, or filling and closing, containers ; or wrappers; in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
024specially adapted for wrappers or bags
B65B 61/28
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
28for discharging completed packages from machines
B65B 9/20
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
9Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
20the webs being formed into tubes in situ around the filling nozzles
Applicants
  • IMDUT INTERNATIONAL B.V. [NL]/[NL] (AllExceptUS)
  • BIERMANN, Horst [DE]/[DE] (UsOnly)
Inventors
  • BIERMANN, Horst
Agents
  • GASSER, François, W.
Priority Data
89200008.402.01.1989NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AUTOMATIC PROCESS FOR MANUFACTURING, FILLING AND EVACUATING LARGE TUBE-BOTTOM-TYPE CONTAINERS AND MACHINE FOR REALIZING THE PROCESS
(FR) PROCEDE ET MACHINE DE FABRICATION, DE REMPLISSAGE ET DE VIDANGE AUTOMATIQUES DE CONTENEURS DE TYPE A FOND A TUBES
Abstract
(EN)
A new automatic process is proposed for manufacturing, filling and evacuating large containers of (square) block-bottom type up to a capacity of 100 liters, particularly for milk powder. In addition, an automatic packaging and evacuating machine is proposed for manufacturing such evacuated block-bottom bags. The process is preferably effected while using a thermally processable laminated foil with excellent resistance to high mechanical stress, steam, gas and light permeability, in evacuating chambers operating simultaneously, though preferably discontinuously, with an appropriate vacuum capacity. Now it is possible, e.g., to load and position three block-bottom bags of each 100 liters per each cycle in the vacated empty evacuating chamber (14, 14'), while interposing a reciprocating charging device moving preferably at right angles to the direction of motion of the filled block-bottom bags. After closing the chamber, the evacuating is carried out until the desired minimum end pressure is obtained. Thereafter inert gas or a gas mixture may be introduced to reduce the minimum end pressure and during this operation the opposite chamber is unloaded and loaded respectively. Synchronical control takes care of constant alternating yet continuous presence of a number of block-bottom bags in either evacuating chamber until the predetermined rate of vacuum has been reached. Vacuum sealing is then finally effected within the evacuating chamber and following decompression of the evacuating chamber. The set of preshaped block-bottom bags is transported off upon a second conveyor. In view to the space requirements it is also preferable to position and displace the off transport device in a reciprocating manner perpendicular to the direction of the movement of the bags.
(FR)
Un nouveau procédé automatique permet de fabriquer, de remplir et de vider de gros conteneurs de type à fond (carré) croisé d'une capacité allant jusqu'à 100 litres, notamment pour du lait en poudre. En outre, une machine d'emballage et de vidange permet de fabriquer ces sacs à fond croisé vidés de l'air. Le procédé est mis en ÷uvre dans des chambres à vide qui fonctionnent simultanément, bien que de préférence de manière non continue, avec une capacité appropriée de vide. On utilise une feuille stratifiée thermotransformable ayant une excellente résistance à des contraintes mécaniques élevées, perméable à la vapeur, aux gaz et à la lumière. Il est possible, par exemple, de charger et de positionner trois sacs à fond croisé d'une capacité de 100 litres chacun pendant chaque cycle dans la chambre à vide libre (14, 14'), tout en interposant un dispositif alternatif de chargement qui se déplace de préférence perpendiculairement au sens de déplacement des sacs remplis à fond croisé. Une fois la chambre fermée, elle est vidée de l'air jusqu'à ce que l'on obtienne la pression finale minimale voulue. On peut ensuite y introduire du gaz inerte ou un mélange gazeux, afin de réduire la pression finale minimale, et pendant cette opération, la chambre opposée est déchargée et chargée, respectivement. Une commande synchronique assure la présence alternative mais continue d'une pluralité de sacs à fond croisé dans l'une ou l'autre chambre à vide jusqu'à ce que le taux de vide prédéterminé ait été atteint. Le scellage sous vide est finalement exécuté dans la chambre à vide et à la suite de la décompression de celle-ci. L'ensemble des sacs préformés à fond croisé est enlevé sur un deuxième convoyeur. Pour des questions d'espace, il est préférable que le dispositif d'enlèvement soit lui aussi positionné et se déplace de manière alternative perpendiculairement au sens de déplacement des sacs.
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