Apparatus and method for sorting objects

B - Operations – Transporting – 07 – C

Patent

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Details

B07C 5/28 (2006.01) B07C 5/18 (2006.01) B07C 5/342 (2006.01) B07C 5/36 (2006.01) B65G 47/96 (2006.01)

Patent

CA 2108572

An apparatus for sorting objects (12) according to preselected weight and visually ascertainable criteria. Each object (12) is singulated and transported between adjacent pairs of a plurality of roller assemblies (100) attached to a conveyor chain (40) to be freely rotatable on a vertically slidable axis oriented normal to the conveying path. A control surface (162) along the conveying path causes rotation in the roller assemblies and in the object supported therebetween, increasing the surface of the object accessible for optical scanning (70). Mounted between each pair of roller assemblies (100) is a weighing cradle (103) subtending the object transported therebetween. The cradle (103) elevates and captures the object from its support between roller assemblies (100) so that the cradle (103) can engage a load cell (78). Pivotally mounted between each pair of rollers and subtending the object transported therebetween is an elongated discharge plate (104). Each object (12) is unloaded at an appropriate discharge location by pivoting upwardly the discharge plate (104).

L'invention concerne un appareil de tri d'objets (12) en fonction d'un poids et de critères visuels déterminés. Chaque objet (12) est séparé et transporté entre des paires adjacentes de rouleaux (100) fixés à une chaîne de convoyeur (40) de manière à pouvoir tourner librement sur un axe coulissant à la verticale, orienté à la normale de la trajectoire du convoyeur. Une surface de contrôle (162) placée le long de la trajectoire du convoyeur entraîne la rotation des rouleaux et de l'objet supporté entre ceux-ci, augmentant ainsi la surface de l'objet accessible au balayage optique (70). Entre chaque paire de rouleaux (100) est monté un berceau de pesage (103) soutenant l'objet transporté. Le berceau (103) soulève et capture l'objet de son support entre les rouleaux (100) de manière à pouvoir s'engager dans une cellule de pesage (78). Un plat de décharge (104) allongé, pivotant et soutenant l'objet transporté, est monté entre chaque paire de rouleaux. Chaque objet (12) est déchargé à l'endroit approprié par pivotement du plat (104) vers le haut.

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