Application system for applying a coating agent

Patent metadata

Field	Value
Publication number	US-9835378-B2
Application number	US-201415035021-A
Country	US
Kind code	B2
Filing date	Nov 3, 2014
Priority date	Nov 6, 2013
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

An application system for applying a coating agent onto a component, in particular for applying a sealant onto a motor vehicle body part, includes a material supply for providing the coating agent, a temperature control device for controlling the temperature of the coating agent, an applicator for applying the coating agent, and a coating agent line between the material supply and the applicator. The temperature control device controls the temperature of the coating agent in the coating agent line downstream of the material supply.

First claim

The invention claimed is:

1. An application system for applying a coating agent to a component, comprising:
a material supply for providing the coating agent,
an applicator for applying the coating agent to the component,
a coating agent line extending between the material supply and the applicator, and
a tempering apparatus thermally coupled to the coating agent line,
wherein the tempering apparatus is configured to temper the coating agent in the coating agent line downstream of the material supply; the tempering apparatus comprises a tempering device which supplies a tempered liquid heat carrier, and the tempering apparatus comprises a heat exchanger which is connected on an input side to the tempering device and on an output side supplies a tempered gaseous heat carrier for tempering the coating agent;
the applicator is guided by a multi-axis application robot, and the application robot and the heat exchanger are arranged on a carriage which is configured to move along a rail, and
a first energy chain upstream of the carriage, wherein the first energy chain
supplies the heat exchanger on the carriage with the liquid heat carrier, and
guides a line portion of the coating agent line, and
feeds back the gaseous heat carrier from the heat exchanger in order to temper the line portion of the coating agent line in the first energy chain, and
a second energy chain downstream of the movable carriage, wherein the second energy chain
guides a line portion of the coating agent line between the carriage and the applicator, and
feeds back the gaseous heat carrier from the heat exchanger in order to temper the line portion of the coating agent line in the second energy chain.

2. The application system according to claim 1 , wherein,
between the material supply and the applicator, the coating agent line extends at least in part into an at least partially closed receiving space, and
the tempering apparatus is configured to conduct a fluid heat carrier through the receiving space to temper the coating agent.

3. The application system according to claim 1 , wherein
the tempering apparatus includes a heat carrier line, and
the tempering apparatus is configured to conduct a fluid heat carrier through the heat carrier line to temper the coating agent.

4. The application system according to claim 3 , wherein,
between the material supply and the applicator, the coating agent line extends at least in part into an at least partially closed receiving space,
the heat carrier line extends, at least in part, through a portion of the receiving space, and
the heat carrier line includes one or more bores through a wall thereof, the heat carrier line configured to release the heat carrier flowing through the heat carrier line through the one or more bores into the receiving space for the coating agent line to temper the coating agent.

5. The application system according to claim 4 , wherein the heat carrier emerges outwardly from the receiving space through openings in a wall of the receiving space.

6. The application system according to claim 4 , wherein the heat carrier line has a plurality of bores through the wall thereof, the plurality of bores being evenly distributed over the part of the heat carrier line within the receiving space.

7. The application system according to claim 2 , wherein the tempering apparatus includes a heat carrier line, and the coating agent line is at least in part adjacent to the heat carrier line.

8. The application system according to claim 7 , wherein the heat carrier line surrounds the coating agent line.

9. The application system according to claim 8 , wherein the heat carrier line surrounds the coating agent line helically.

10. The application system according to claim 7 , wherein
the coating agent line includes an inner wall and an outer wall,
the coating agent line is configured to contain the coating agent flow within the inner wall, and
the heat carrier line extends between the inner wall and the outer wall of the coating agent line.

11. The application system according to claim 1 , wherein the tempering apparatus includes a nozzle in fluid communication with a heat carrier and configured to facilitate expansion of the heat carrier.

12. The application system according to claim 1 , wherein the tempering apparatus comprises a Peltier element configured to cool the coating agent line.

13. The application system according to claim 1 , wherein the tempering apparatus includes an electrically powered heating tube coupled to the coating agent line and configured to heat the coating agent flowing through the heating tube.

14. The application system according to claim 12 , wherein the Peltier element extends over a length of at least 50 cm of the coating agent line.

15. The application system according to claim 1 , wherein
the applicator is guided by a multi-axis application robot,
the application robot has a proximal robot arm and a distal robot arm, and
the tempering apparatus tempers the coating agent at least up to the distal robot arm of the application robot.

16. The application system according to claim 1 , wherein the tempering apparatus tempers the coating agent line over a line length of at least 50 cm.

17. The application system according to claim 1 , wherein the tempering apparatus tempers the coating agent line over a line length of at least 20% of its overall length.

Assignees

• Duerr Systems Gmbh

Inventors

• Rademacher Lothar

Classifications

• F28D7/0016

  the conduits for one medium or the conduits for both media being bent (F28D7/0033 takes precedence) · CPC title

• F28F5/00

  Elements specially adapted for movement · CPC title

• F28C3/02 Primary

  the heat-exchange media both being gases or vapours · CPC title

• F28D15/00

  Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} · CPC title

• B05C11/1042

  provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus · CPC title