Method and apparatus for applying a coating to the...

B - Operations – Transporting – 05 – D

Patent

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Details

B05D 1/02 (2006.01) B05B 13/00 (2006.01) B05C 5/00 (2006.01) B05D 3/02 (2006.01) B05D 5/00 (2006.01)

Patent

CA 2277092

An apparatus for applying a coating to the head-shank junction of externally threaded fasteners (12) in an automated fashion. The fasteners (12) are positioned, head down, on rotating part holders (30) positioned about the periphery of a rotating disc (25). The part holders (30) may be magnetic or other forms, and are adapted to maintain the fasteners (12) in a generally fixed position during their movement. The fasteners (12) are pre-heated at a heating station (70) during their rotational movement on the disc (25). A dispenser (50) is then used to apply the coating to the articles (12), in timed sequence to the movement of the articles (12). In this fashion, a coating can be applied to selected portions of the entire periphery of the head-shank junction. A method for applying a coating to the head-shank junction of externally threaded fasteners (12) in an automated fashion also form part of the present invention.

Cette invention concerne un appareil permettant d'appliquer un revêtement selon un procédé automatisé sur la jonction tête-tige de fixations (12) à filetage externe. Ces fixations (12) sont placées la tête vers le bas sur des supports de pièces rotatifs (30) qui sont disposés sur la périphérie d'un disque rotatif (25). Les supports de pièces (30) peuvent être magnétiques ou autres et vont maintenir les fixations (12) en une position globalement fixe au cours de leur déplacement. Les fixations (12) sont préchauffées dans une station de chauffage (70) au cours de leur mouvement en rotation sur le disque (25). Un distributeur (50) va ensuite appliquer le revêtement sur les articles (12) selon une séquence qui est synchrone au déplacement de ces derniers (12). Il est ainsi possible d'appliquer un revêtement en des parties prédéterminées sur toute la périphérie de la jonction tête-tige. Cette invention concerne également un procédé permettant d'appliquer un revêtement de manière automatisée sur la jonction tête-tige de fixations (12) à filetage externe.

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