Rotary spraying head type painting device

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 3/02 (2006.01) B05B 15/02 (2006.01)

Patent

CA 2623131

A rotary spraying head (7) is provided with a first cleaning fluid outflow channel (15) located on the rear side of a paint reservoir (12) and opening to the outer circumferential surface (8C) of the rotary spraying head (7). On the other hand, the rotary spraying head (7) is provided with a second cleaning fluid outflow channel (20) located around the distal end of a paint tube (18) and having the outflow side opening to the paint reservoir (12). A nozzle (22) is provided at the outlet of a cleaning fluid tube (19), and an annular chamber (24) for storing cleaning fluid is defined in the nozzle (22). The nozzle (22) is provided with first and second outlet opening (25, 26) for ejecting the cleaning fluid toward the first and second cleaning fluid outflow channels (15, 20). Furthermore, a check valve (27) for preventing backflow of the cleaning fluid is provided in the annular chamber (24) of the nozzle (22).

L'invention concerne une tête (7) de pulvérisation rotative pourvue d'un premier passage (15) de sortie de fluide de nettoyage situé sur le côté arrière d'un réservoir (12) à peinture et s'ouvrant sur la surface (8C) circonférentielle extérieure de la tête (7) de pulvérisation rotative. Par ailleurs, la tête (7) de pulvérisation rotative est pourvue d'un deuxième passage (20) de sortie de fluide de nettoyage situé autour de l'extrémité distale d'un tube (18) à peinture et dont le côté de sortie s'ouvre sur le réservoir (12) à peinture. Une buse (22) est installée à la sortie d'un tube (19) de fluide de nettoyage et une chambre (24) annulaire servant à emmagasiner le fluide de nettoyage est définie dans la buse (22). La buse est pourvue d'une première et d'une deuxième ouvertures (25, 26) de sortie servant à éjecter le fluide de nettoyage vers les premier et deuxième passages (15, 20) de sortie de fluide de nettoyage. En outre, un clapet (27) anti-retour destiné à empêcher le reflux du fluide de nettoyage est installé dans la chambre (24) annulaire de la buse (22).

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