公开(公告)号：US3635400A

公开(公告)日：1972-01-18

申请号：US3635400D

申请日：1970-03-27

Applicant: NORDSON CORP

Inventor： NORD ERIC T ,  ROSEN SAMUEL R ,  SCARBROUGH DON R ,  VILAGL BURTON J ,  RUNSTADLER PETER W JR

IPC: B05B5/03 ,  B05B5/035 ,  B05B7/08 ,  B05B5/00 ,  F23D11/28

CPC classification number: B05B5/035 ,  B05B5/03 ,  B05B7/0815

Abstract: A method and apparatus for spraying paint and similar coatings. In one form the paint is sprayed at low pressure from a flat fan nozzle. A flat fan of air impinges upon the fan of paint at an angle of from 30*-70*. The air atomizes the paint to form a soft spray with low-forward velocity. In another form of the method, two fans of paint are projected toward one another at an angle and an air fan is directed along the bisector toward the zone of intersection. The air fan atomizes both streams of paint. An electrode can be placed in the air stream to ionize the air stream which in turn charges the paint particles. The width of the paint spray pattern is varied by varying the included angle of the air fan. A spray gun is disclosed having two tubular paint nozzles for projecting two fan-shaped fans of paint. An air nozzle is mounted between the paint nozzles for projecting a fan of air against the paint fans to atomize the paint. The air nozzle is adjustable to provide air fans of different angles for varying the width of the paint spray pattern. An electrode is disposed in the air nozzle for ionizing the air stream. This electrode is energized through a resistor and flexible cable. The cable is spring-urged toward the resistor so that when the resistor is removed, the cable shifts causing a safety switch to open deenergizing the gun. When a nozzle mounting member is removed, the cable and surrounding tube are shifted forwardly to automatically close a valve to seal off the air and electrical conduits. Removable caps are provided on the ends of the tubular paint nozzles for facilitating cleaning of the nozzles.

Abstract translation: 一种用于喷涂油漆和类似涂层的方法和装置。 在一种形式中，油漆在低压下从平坦的风扇喷嘴喷射。 平面风扇以30°-70°的角度撞击在油漆风扇上。 空气雾化油漆以形成具有低向前速度的软喷雾。 在该方法的另一种形式中，两个油漆风扇以一定角度彼此相对地突出，并且风扇沿平分线朝向相交区域引导。 风扇使两股油漆雾化。 电极可以放置在空气流中以离子化气流，其又对涂料颗粒进行充电。 通过改变风扇的夹角来改变喷漆图案的宽度。