Apparatus for manufacturing drainage line units and...

B - Operations – Transporting – 65 – B

Patent

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B65B 63/00 (2006.01) F16L 55/165 (2006.01)

Patent

CA 2365064

An apparatus for manufacturing a drainage line unit includes a mandrel (20) having an inner cavity (30). Rear (24), upper (26) and front (28) openings communicate with the mandrel cavity. A pipe feeder (36) feeds perforated vent pipe (38) through the inner cavity (30) of the mandrel (20). The pipe is positioned within the inner tube cavity (30) so as to defined a void space between the pipe and the wall of the mandrel. A hopper assembly (40) is positioned for feeding a plurality of plastic bodies (46) into the cavity wherein a blower (44) produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies (46) to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies. A sleeve feeder (50) feeds a continuous sleeve of netting (53) over the plurality of plastic bodies (46) and the vent pipe (38). A separator (60) fastens the continuous sleeve of netting (52) to the vent pipe (38) and cuts the drainage line, to form a completed drainage line unit (62).

L'invention concerne un appareil de fabrication de conduites d'évacuation comprenant un mandrin (20) présentant une cavité (30) interne. Des ouvertures arrière (24), supérieure (26) et avant (28) communiquent avec la cavité du mandrin. Un dispositif d'alimentation (36) alimente, par le biais de la cavité (30) interne du mandrin (20), un évent (38) perforé. Le tuyau est placé dans la cavité (30) interne du tube de façon à définir un espace vide entre le tuyau et la paroi du mandrin. Un ensemble trémie (40) est placé de façon à charger une pluralité de corps (46) en matière plastique dans la cavité. Un ventilateur soufflant (44) produit un débit d'air à travers la cavité du mandrin suffisant pour déplacer lesdits corps (46) et en remplir sensiblement l'espace vide, le tube émergeant alors de l'ouverture avant du mandrin entouré de la pluralité de corps en matière plastique. Un chargeur à manchon (50) alimente un manchon continu de maillage (53) sur lesdits corps (46) et l'évent (38). Un séparateur (60) fixe le manchon continu de maillage (52) à l'évent (38) et coupe la conduite d'évacuation, de façon à former une conduite d'évacuation complète (62).

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