Abrégé

The invention relates to such a manufacturing machine in which the pressing means (20) for rolling the strips of material (2) against the forming mandrel (3) and the traction means (10) for moving said shaped strips of material along said forming mandrel (3) are separate in order to separate these two functions. The pressing means (20) comprise a plurality of press rollers (21), mounted with the freedom to rotate about their axis, deformable and distributed radially around said forming mandrel (3) so as to hug the periphery of said mandrel. The traction means (10) are multiple: traction belts (11) borne by drive rollers (12) positioned downstream of said pressing means (20).

Classes IPC  ?

• B31F 1/00 - Déformation mécanique sans enlèvement de matière, p. ex. en combinaison avec une stratification
• B31F 7/00 - Procédés non prévus ailleurs
• B31B 1/28 - Pliage des feuilles, flans ou bandes autour de mandrins, y compris pour les opérations de fabrication du fond

Abrégé

The invention relates to a method for manufacturing a tubular profile member (1a), particularly made of cardboard, by stacking and tightly assembling a plurality of material strips (2) forming a multilayer wall, in which the material strips (2) are unrolled one after the other in a longitudinal direction corresponding to a longitudinal axis A of said tubular profile member (1), and are shaped around a longitudinal shaping mandrel having a surface defining the inner section of said profile member. The method is characterized in that, in order to produce at least one of the layers forming the wall (6), at least two partial strips (20), having a greater width than the half-surface of the shaping mandrel (4) and arranged opposite the longitudinal axis A, are used, thus making it possible to produce tubular profile members, the wall of which has separate reinforced layers.

Classes IPC  ?

• B31B 1/28 - Pliage des feuilles, flans ou bandes autour de mandrins, y compris pour les opérations de fabrication du fond
• B31B 7/00 - Mécanismes caractérisés par le fait que les boîtes ou cartons fabriqués comportent des doublures ou des renforcements intérieurs
• B31B 17/00 - Mécanismes caractérisés par le fait que les boîtes ou cartons autres que les précédents sont fabriqués par assemblage de plusieurs feuilles, flans ou bandes individuelles
• B31F 7/00 - Procédés non prévus ailleurs
• B31F 1/00 - Déformation mécanique sans enlèvement de matière, p. ex. en combinaison avec une stratification
• B65D 19/00 - Palettes ou plates-formes analogues, avec ou sans parois latérales, pour supporter les charges à soulever ou à déposer

Abrégé

The present invention relates to a sealed packaging container (10), particularly intended for packaging a food product, comprising a tubular container body (11) composed of a complex material, a base (12), an inner lid for sealing (14), and an outer lid for closing (13), said base and said inner lid being assembled with the body of the container such that the packaging container is air- and moisture-tight. This packaging container (10) is advantageous in that said inner lid (14) and said outer lid (13) comprise means for connection (14a, 13b) with said container body (1) arranged such that the packaging container remains intact after said container is opened for the first time to access the packaged product, and such that said container retains quality secondary sealing properties.

Classes IPC  ?

• B65D 43/16 - Couvercles ou chapeaux inamovibles s'ouvrant à charnières vers le haut ou vers le bas
• B65D 51/18 - Aménagements des fermetures avec couvercles extérieurs de protection analogues à des capuchons ou de plusieurs fermetures conjuguées