System for coating, in particular for painting, articles, in particular vehicle bodies
AssigneeEisenmann SE
InventorsMarkus Albrecht, Frank Tietze
Life of this patent
Estimating the term…
Abstract
A system for coating articles which includes a coating booth, a conveyor system, which guides the articles through the coating booth, and at least one application unit, which is carried and guided by a handling device. A central supply unit having a tank for storing CO2 in liquid or solid form and which is able to remove CO2 from the tank and supply it at a suitable pressure to a collecting line connected to at least one cleaning apparatus, which includes at least one nozzle of suitable design for delivering CO2 for cleaning purposes. Under program control a relative movement between the nozzle and the application unit is induced, such that all surfaces of the application unit to be cleaned can be reached by CO2.
Claims15
A system for coating comprising:
- a) a coating booth;
- b) a conveying system which guides objects to be coated through the coating booth;
- c) at least one application unit for a coating medium;
- d) at least one handling device which carries and guides the at least one application unit;
- e) at least one cleaning device which has at least one nozzle from which carbon dioxide (CO2) exits for cleaning purposes, the at least one nozzle being aimed at the at least one application unit;
- f) a tank for storing the CO2 in a liquid form or a solid form;
- g) a central supply unit, which has a conveying means which remove the CO2 from the tank and supply the CO2 at a pressure for further conveying;
- h) a collecting line which is connected to the central supply unit and attached to the at least one cleaning device;
- i) a controller configured to control relative movement between the at least one nozzle and the at least one application unit to re-aim the at least one nozzle to direct the CO2 at different portions of the at least one application unit so that all surfaces of the at least one application unit which are cleaned are reached by the CO2 exiting the at least one nozzle.
A method for operating a system for coating comprising the steps of:
- a) guiding objects to be coated through a coating booth using a conveying system;
- b) carrying and guiding at least one application unit with at least one handling device, wherein the at least one application unit supplies a coating medium to the objects guided through the coating booth;
- c) storing carbon dioxide (CO2) in a liquid form or a solid form in a tank;
- d) removing the CO2 from the tank using a central supply unit having a conveying means and supplying the CO2 at a pressure for further conveying;
- e) connecting a collecting line between the central supply unit and at least one cleaning device;
- f) aiming at least one nozzle of the at least one cleaning device at the at least one application unit;
- g) applying the CO2 for cleaning purposes to a surface of the at least one application unit using the at least one nozzle;
- and
- h) moving the at least one nozzle relative to the at least one application unit to apply the CO2 for cleaning purposes to a second surface of the at least one application unit using the at least one nozzle, wherein the at least one nozzle is moved relative to the at least one application unit to clean all surfaces of the at least one application unit.
Dependencies are inferred from the claim text.