Base curve bender

B - Operations – Transporting – 21 – F

Patent

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Details

B21F 45/00 (2006.01) B21F 1/00 (2006.01) G01B 11/24 (2006.01)

Patent

CA 2178194

An eyewinder system (10) has stations (100-108) for straightening, bending, measuring and transporting a wire (11) to form an eye wire (109). A controller (120) controls each station. Using information from tension and length measuring stations (104 105), the controler (120) can accurately operate the second bending station (107). The eyewire (109) is inspected for accurate bends by an inspection system (140) that compares the bends in the eyewire (109) to predetermined radii of curvature. A base curve bending station (801) has a shuttle (810) and a turntable (830). A wire (820) passing through the shuttle (810) is bent and the head of the wire is held in one direction while the turntable allows the body of the wire to move in a plane transverse to the axis of rotation of the turntable.

Un système (10) de fabrication de lunettes comprend des postes (100-108) de redressement, de pliage, de mesure et de transport d'un fil métallique (11) qui servent à former des cercles (109) de lunettes. Une unité de commande (120) commande chaque poste. L'unité de commande (120) peut exploiter avec précision le deuxième poste de pliage (107) en utilisant des informations fournies par des postes de mesure de la tension et de la longueur (104, 105). Un système d'inspection (140) inspecte le cercle pour lunettes (109) afin de déterminer si sa courbure est correcte et compare les courbes du cercle pour lunettes (109) à des rayons de courbure prédéterminés. Un poste (801) de pliage de la courbe de base comprend une navette (810) et une table tournante (830). Un fil métallique (820) est plié pendant son passage à travers la navette (810) et la tête du fil métallique est maintenue dans une direction pendant que la table tournante permet de déplacer le corps du fil métallique dans un plan transversal à l'axe de rotation de la table tournante.

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