B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/12 (2006.01) B29C 47/22 (2006.01) B29C 53/30 (2006.01)
Patent
CA 2416781
Apparatus for forming continuous products as an extruder die (21) with a supply channel which terminates with a channel mouth feeding plastic to a moving mold tunnel (23). The mold tunnel (23) comprises mold blocks (25, 27) of different mold block shapes which move past the channel mouth (31, 39) to form the wall of the product with a varying configuration. The channel mouth (31, 39) has an adjustable mouth gap which automatically adjusts in gap size according to which one of the mold block (25, 27) shapes is moving past the channel mouth (31, 39) to adjust plastic flow through the channel mouth so as to affect changes in thickness of the plastic along the product wall.
L'invention se rapporte à un appareil de fabrication d'articles continus tel qu'une matrice d'extrusion dotée d'un canal d'alimentation qui se termine par une bouche alimentant en matière plastique un tunnel de moulage mobile. Ledit tunnel de moulage comporte des blocs de moulage présentant différentes formes qui se déplacent devant la bouche du canal de manière à former la paroi de l'article avec une structure variable. La bouche du canal possède un espace réglable dont la dimension s'ajuste automatiquement en fonction de la forme du bloc de moulage qui se déplace devant la bouche du canal de sorte que l'écoulement de matière plastique par la bouche du canal varie et produise des changements d'épaisseur de la matière plastique le long de la paroi de l'article.
Lupke Manfred A. A.
Lupke Stefan A.
Dennison Associates
Lupke Manfred A. A.
Lupke Stefan A.
LandOfFree
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