Process for supplying painting lines with paint
AssigneeBASF Farben & Fasern AG
InventorsHagen Buchholz, Hans-Dieter Johannsmeier, Friedrich Vock
Life of this patent
Estimating the term…
Abstract
Spray paint lines, in particular the spray sites in spray booths of auto assembly lines, are provided with the paint material by means of a pump delivering the paint material into the main ring. The pressure level required for spraying the paint is adjusted by means of a pressurized vessel and a pressurized gas above the liquid level. A second pump conveys fresh paint material into the pressurized vessel.
Claims15
A process for supplying coating material to at least one spraying point located along a paint line, comprising:
- (a) providing said paint line as a closed circuit;
- (b) locating a pressurized vessel having an inlet and an outlet in said closed circuit;
- (c) supplying said pressurized vessel with said coating material under pressure to maintain a liquid level in said pressurized vessel;
- (d) supplying a pressurized gas above said liquid level in said pressurized vessel to maintain a pressure level on said coating material for paint spraying at said spraying point;
- and
- (e) providing a pump in said closed circuit for recirculating said coating material from said spraying point to said pressurized vessel.
A process for supplying coating material to at least one spraying point located along a paint line, comprising:
- (a) providing first and second pressurized vessels at each end of said paint line;
- (b) supplying at least one of said pressurized vessels with said coating material under pressure to maintain first and second liquid levels in said pressurized vessels;
- (c) supplying a pressurized gas above said first liquid level at a given pressure to maintain a pressure level on said coating material for paint spraying at said spraying point and passing said coating material to said second pressurized vessel;
- and
- (d) supplying said pressurized gas above said second liquid level at a pressure in excess of said given pressure to maintain said pressure level for paint spraying and passing said coating material back to said first pressurized vessel.
An apparatus for supplying coating material to at least one spraying point located along a paint line, comprising:
- (a) means for providing said paint line in a closed circuit;
- (b) a pressurized vessel having an inlet and an outlet connected in line in said closed circuit;
- (c) means for supplying said pressurized vessel with said coating material under pressure to maintain a liquid level in said pressurized vessel;
- (d) means for supplying a pressurized gas above said liquid level in said pressurized vessel to maintain a pressure level on said coating material for paint spraying at said spraying point;
- and
- (e) a pump in said closed circuit for recirculating said coating material from said spraying point to said pressurized vessel.
An apparatus for supplying paint material to at least one spraying point located along a coating line, comprising:
- (a) said paint line having a first end and a second end;
- (b) a first pressurized vessel connected to said first end;
- (c) a second pressurized vessel connected to said second end;
- (d) means for supplying at least one of said pressurized vessels with said coating material under pressure to maintain first and second liquid levels in said pressurized vessels;
- (e) means for supplying a pressurized gas above said first liquid level at a given pressure to maintain a pressure level on said coating material for paint spraying at said spraying point and passing said coating material to said second pressurized vessel;
- and
- (f) means for supplying said pressurized gas above said second liquid level at a pressure in excess of said given pressure to maintain said pressure level for paint spraying and passing said coating material back to said first pressurized vessel.
Dependencies are inferred from the claim text.