公开(公告)号：US3672570A

公开(公告)日：1972-06-27

申请号：US3672570D

申请日：1970-09-04

Applicant: NORDSON CORP

Inventor： SCARBROUGH DON R ,  VILAGI BURTON J

IPC: B05B12/14 ,  A01G27/00

CPC classification number: B05B12/14 ,  B05B12/149

Abstract: A pneumatically controlled color change system for use with automatic multi-color paint spray apparatus and the like wherein an entirely pneumatically controlled system employing a pneumatic timer including pneumatic sequence valves controls a quick-color change system in which a plurality of colors of paint are connected to various inputs of a manifold, each through a check valve which isolates each of the manifold ports from each other and in which a source of solvent is connected to another input of the manifold. An exceedingly high-speed system is provided in which a metered charge of solvent only partially filling the system is injected through the manifold and forced through the system with the new color to be selected, thereby purging the system of the old color. High-speed valve timing is provided in the order of magnitude of 1 second per valve of the sequence.

Abstract translation: 一种用于自动多色喷漆装置等的气动变色系统，其中使用包括气动顺序阀的气动定时器的完全气动控制系统控制其中连接有多种颜色的油漆的快速变色系统 歧管的各种输入，每个通过止回阀，其将每个歧管端口彼此隔离，并且其中溶剂源连接到歧管的另一个输入。 提供了一种非常高速的系统，其中通过歧管注入仅部分填充系统的计量电荷的溶剂并且被迫通过系统以选择新的颜色，从而净化系统的旧颜色。 按顺序的每个阀提供1秒钟的高速气门正时。

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。

公开(公告)号：US3911161A

公开(公告)日：1975-10-07

申请号：US29181872

申请日：1972-10-02

Applicant: NORDSON CORP

Inventor： NORD ERIC T ,  SCARBROUGH DON R

IPC: B05B5/08 ,  B05D1/04

CPC classification number: B05B5/08 ,  B05B5/001

Abstract: A method and apparatus for electrostatic spray-coating articles with hot melt compositions, e.g., hot thermoplastic compositions. The method involves the steps of heating a thermoplastic composition to a liquid state, atomizing the liquid to form finely divided particles, conducting the atomization in the presence of an electrostatic field and cooling the particles in the field. Articles are coated with the thermoplastic compositions by electrostatically charging the atomized particles with respect to the articles thereby causing the charged particles to be electrostatically deposited on the articles. The atomized particles are deposited on the articles with complete surface coverage and can be coalesced or re-melted on the article surface to provide a finished film thereon. The electrostatic spraying and spray-coating techniques avoid environmental pollution and offer significant cost savings in surface-finishing useful articles.

Abstract translation: 用热熔组合物例如热塑性组合物静电喷涂制品的方法和装置。 该方法包括将热塑性组合物加热至液态，雾化液体以形成细碎颗粒，在静电场存在下进行雾化并在场中冷却颗粒的步骤。 用热塑性组合物对物品涂上相对于制品的雾化颗粒，由此使带电颗粒静电沉积在物品上。 雾化的颗粒沉积在具有完全表面覆盖的物品上，并且可以在物品表面上聚结或再熔化以在其上提供成品膜。 静电喷涂和喷涂技术避免了环境污染，并在表面处理有用的物品中节省了大量成本。