Paint discharge rate control system
US4992952A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1988 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Sep 20, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/84
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A paint discharge rate control system includes a paint flow regulator provided in a paint supply line connecting a color changing valve group to a painting nozzle, a paint mass flow meter for measuring the mass flow rate of paint, provided in the paint supply line, and a control for controlling the paint flow regulator on the basis of a paint mass flow rate measured by the paint mass flow meter to control paint discharge rate. The control converts a measured paint mass flow rate measured by the paint mass flow meter into a volumetric flow rate, and controls the paint flow regulator during a push-out operation, in which the valves of the color hanging valve group are closed and a valve for supplying a washing liquid is opened, so that the paint remaining in the paint supply line is pushed out by the washing liquid at a paint discharge rate at which the paint is discharged during the main step of painting. The paint discharge rate control system is capable of controlling a painting machine so that paint is discharged always at an optimum paint discharge rate without requiring the setting of the density of a fluid, namely, paint or a washing liquid, that flows through the mass flow me…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.