Apparatus and method for weighing product during filling

B - Operations – Transporting – 65 – B

Patent

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B65B 1/30 (2006.01) B65B 3/26 (2006.01)

Patent

CA 2670023

A slurry product is packaged into a plastic bag using a modified form-fill- seal apparatus. A method for making a plastic bag filled with a desired weight of a slurry material on a form/fill/seal machine, includes drawing a plastic film over a mandrel of a form/fill/seal machine and wrapping the film around a forming tube. A tube of plastic film is formed by bonding the edges of the film together and the bottom of the tube is sealed. An initial weight is obtained by weighing the mandrel and the tube of plastic film then a slurry composition is deposited inside the closed tube. The present weight of the mandrel, tube of plastic film and contents of the tube are monitored as the slurry is deposited, and the present weight and the initial weight are compared until a desired weight is reached. After the desired weight is reached, the filled bag is sealed and separated from the tube of plastic film.

Un produit en suspension est emballé dans un sac plastique à l'aide d'un appareil <= form-fill-seal >= modifié. Un procédé pour fabriquer un sac plastique rempli d'un poids souhaité de matière en suspension sur une machine <= form-fill-seal >= consiste à tirer unfilm plastique sur un mandrin d'une machine <= form-fill-seal >= et à entourer ce film autour d'une manchette. Un tube de film plastique est formé en soudant les bords du film les uns aux autres et le fond du tube est fermé hermétiquement. Un poids initial est obtenu en pesant le mandrin et le tube de film plastique, puis une composition en suspension est déposée à l'intérieur du tube fermé. Le poids actuel du mandrin, du tube de film plastique et du contenu du tube est contrôlé lors du dépôt de la suspension épaisse et le poids actuel est comparé au poids initial jusqu'à ce qu'un poids souhaité soit atteint. Une fois que le poids souhaité est atteint, le sac rempli est fermé hermétiquement et séparé du tube de film plastique.

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