发明名称 |
QUICK COLOR CHANGE POWDER COATING SYSTEM |
摘要 |
<p>Systems and methods for applying powder coating materials in electrostatic spray systems are provided. For example, a gravity feed of recovered powder coating from the recovery system to the feed system is disclosed. In addition, a powder feed system is disclosed wherein a powder suction lance assembly has only two operable positions, a first for feeding powder from a fluidized hopper and also corresponding to a purge position for a novel purge manifold, and a second retracted position for powder color changes and servicing. Also, a pump assembly block in physical communication with an air line attachment plate, a suction tube plate, and a hose manifold is disclosed. A plurality of attachment members removably attach the air attachment plate, a suction tube plate, and the hose manifold plate to the pump assembly block. Method for applying a first powder color and a second powder color in a powder feed center are also provided. The one method includes, among other things, the step of replacing a first pump assembly and with a second pump assembly that is in fluid communication with the one or more spray devices. The second pump assembly may be a new, previously cleaned, or color dedicated pump assembly. So configured, the present invention reduces the amount of time required for a powder color change in an electrostatic spray system and reduces color cross-contamination effects involved when changing between powder colors. Powder contacting surfaces are reduced, as well.</p> |
申请公布号 |
EP1328352(A2) |
申请公布日期 |
2003.07.23 |
申请号 |
EP20000963521 |
申请日期 |
2000.09.15 |
申请人 |
NORDSON CORPORATION |
发明人 |
SHUTIC, JEFFREY, R.;JONES, EDWARD, L.;THOMAS, MICHAEL, S.;PEDDIE, ANDREW, M.;KREEGER, KENNETH, A.;SCHROEDER, JOSEPH, G. |
分类号 |
B05B15/04;B05B7/14;B05B12/14;B05B15/12;(IPC1-7):B05B15/04 |
主分类号 |
B05B15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|