Coating system and corresponding operating method

Patent metadata

Field	Value
Publication number	US-10464082-B2
Application number	US-201615742618-A
Country	US
Kind code	B2
Filing date	Jul 1, 2016
Priority date	Jul 15, 2015
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

The disclosure relates to a coating system for coating components with a coating agent, in particular a painting system for painting motor vehicle bodywork components, comprising a first coating system component (12, 13) which during operation produces waste heat as a by-product and forms a heat source, and a second coating system component (1, 5) which is heated during operation and forms a heat sink. The disclosure provides that the waste heat of the first coating system component (12, 13) is fed to the second coating system component (1, 5) for heating. The disclosure further relates to a corresponding operating method.

First claim

The invention claimed is:

1. Coating system for coating components with a coating agent, comprising:
a) a first coating system component which produces waste heat as a by-product during operation and therefore forms a heat source, the first coating system component is part of a robot drive, the robot drive including at least one of a motor and a gear box, and
b) a second coating system component which is heated during operation and forms a heat sink,
c) wherein the waste heat of the first coating system component is fed to the second coating system component for heating.

2. Coating system according to claim 1 , wherein a heat exchanger is provided, which absorbs the waste heat of the first coating system component and feeds it to the second coating system component.

3. Coating system according to claim 2 , wherein the heat exchanger is connected on its warm side to the waste heat-generating first coating system component and transfers the absorbed waste heat on its cold side to a gaseous or liquid substance stream.

4. Coating system according to claim 1 , wherein
a) the second coating system component to be heated operates with a process medium, and
b) the waste heat of the first coating system component heats the process medium of the second coating system component,
c) the process medium initially flows through the heat exchanger and is then fed to the second coating system component.

5. Coating system according to claim 1 , wherein the first coating system component supplying waste heat is a mechanical component of the coating system.

6. Coating system according to claim 1 , wherein at least one of the first coating system component supplying waste heat, the second coating system component and the heat exchanger are encapsulated in an encapsulation.

7. Coating system according to claim 6 , wherein the encapsulation is an explosion-protection encapsulation.

8. Coating system according to claim 7 , wherein the encapsulation is selected from a group consisting of:
a pressure-proof encapsulation,
an overpressure-proof encapsulation, and
an oil encapsulation.

9. Coating system according to claim 6 , wherein the process medium to be heated is fed into the encapsulation, then heated within the encapsulation and finally is conducted out of the encapsulation again.

10. Coating system according to claim 9 , wherein the feeding of the process medium into the encapsulation and the conduction of the process medium out of the encapsulation meets the requirements for an explosion protection encapsulation.

11. Coating system for coating components with a coating agent, comprising:
a) a first coating system component which produces waste heat as a by-product during operation and therefore forms a heat source, the first coating system component is part of a robot drive, the robot drive including a motor and a gearbox having an input side and an output side, the gearbox being driven on the input side by the motor and the output side of the gearbox mechanically driving the robot, the first coating system component further including a cooling flange for conducting away the waste heat from at least one of the motor and the gearbox, wherein the cooling flange is arranged between the motor and the gearbox, is thermally connected to at least one of the motor and the gearbox, and the waste heat is conducted away from at least one of the motor and the gearbox by means of the heat exchanger, and
b) a second coating system component which is heated during operation and forms a heat sink,
c) wherein the waste heat of the first coating system component is fed to the second coating system component for heating.

12. Coating system according to claim 11 , wherein the cooling flange comprises two housing parts which, in the mounted state, lie against one another and sealingly enclose a housing interior or in that the cooling flange is in one piece.

13. Coating system according to claim 12 , wherein the two housing parts each have a cylindrical bore for the passage of a shaft of the motor or of the gearbox wherein, in the mounted state, the two bores are oriented coaxially and are sealed in relation to the housing interior.

14. Coating system according to claim 13 , wherein the cooling flange comprises an inlet in order to conduct the process medium to be heated into the housing interior.

15. Coating system according to claim 14 , wherein the cooling flange comprises an outlet in order to conduct the heated process medium out of the housing interior.

16. Coating system according to claim 15 , wherein the cooling flange comprises at least one rib internally which protrudes into the housing interior in order to improve the thermal contact between the cooling flange, on one side, and the process medium in the housing interior, on the other side.

17. Coating system according to claim 16 , wherein the process medium is conducted between the inlet and the outlet by the ribs round the bores, so that an annular stream of the process medium forms round the bores.

18. Coating system according to claim 17 , wherein the cooling flange comprises a partition wall which is arranged between the inlet and the outlet.

19. Coating system for coating components with a coating agent, comprising:
a) at least one robot with a robot base, a rotatable robot element, a proximal robot arm and a distal robot arm;
b) a first coating system component which produces waste heat as a by-product during operation and therefore forms a heat source, the first coating system component including a heat exchanger and the first coating system component being mounted in the robot base or in the rotatable robot element, and
c) a second coating system component which is heated during operation and forms a heat sink,
d) wherein the waste heat of the first coating system component is fed to the second coating system component for heating.

20. Coating system for coating components with a coating agent, comprising:
a) a first coating system component which produces waste heat as a by-product during operation and therefore forms a heat source,
b) a second coating system component which is heated during operation and forms a heat sink,
c) a heat exchanger between the first and second coating systems, and the first coating system component, the heat exchanger and the second coating system component are encapsulated in an encapsulation,
c) wherein the waste heat of the first coating system component is fed to the second coating system component for heating.

21. Coating system according to claim 20 , wherein the encapsulation is an explosion-protection encapsulation.

22. Coating system according to claim 21 , wherein the encapsulation is selected from a group consisting of:
a pressure-proof encapsulation,
an overpressure-proof encapsulation, and
an oil encapsulation.

23. Coating system according to claim 20 , wherein the process medium to be heated is fed into the encapsulation, then heated within the encapsulation and finally is conducted out of the encapsulation again.

24. Coating system according to claim 23 , wherein the feeding of the process medium into the encapsulation and the conduction of the process medium out of the encapsulation meets the requirements for an explosion protection encapsulation.

Assignees

• Duerr Systems Ag

Inventors

• Imle Matthias

Classifications

• B05B16/60

  Ventilation arrangements specially adapted therefor · CPC title

• B05B3/001 Primary

  incorporating means for heating or cooling, e.g. the material to be sprayed · CPC title

• B05B13/0452

  the objects being vehicle components, e.g. vehicle bodies · CPC title

• Y10S901/23

  Electric motor · CPC title

• Y10S901/43

  Spray painting or coating · CPC title