Treatment installation and method for treating workpieces

Patent metadata

Field	Value
Publication number	US-12158304-B2
Application number	US-202318337992-A
Country	US
Kind code	B2
Filing date	Jun 20, 2023
Priority date	Jul 31, 2015
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

First claim

The invention claimed is:

1. A treatment installation for treating workpieces, wherein the treatment installation includes:
a treatment chamber;
a conveying device, by which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction; and
at least one circulating air module,
wherein each circulating air module includes a distributor device for distributing a circulating air gas stream that is to be supplied to the treatment chamber over a plurality of inlet openings of a gas supply, and
wherein each circulating air module forms a section of the treatment installation.

2. The treatment installation according to claim 1 , wherein the distributor device is separated from the treatment chamber by a dividing wall, wherein at least one inlet opening are made in the dividing wall.

3. The treatment installation according to claim 2 , wherein the dividing wall is formed to follow a workpiece longitudinal contour, at least in certain regions.

4. The treatment installation according to claim 2 , wherein the treatment installation is a treatment installation for treating vehicle bodies, and in that the dividing wall includes a substantially vertical section that runs at least approximately parallel to a vehicle front or a vehicle rear of a vehicle body, a substantially horizontal section that runs at least approximately parallel to a front hood or rear hood of the vehicle body, and/or an oblique section that runs at least approximately parallel to A pillars or C pillars of the vehicle body.

5. The treatment installation according to claim 4 , wherein the dividing wall includes a plurality of inlet openings in the substantially vertical section that runs at least approximately parallel to a vehicle front or a vehicle rear of a vehicle body and/or a plurality of inlet openings in the oblique section that runs at least approximately parallel to A pillars or C pillars of the vehicle body.

6. The treatment installation according to claim 1 , wherein the workpieces are receivable by the conveying device and are conveyable through the treatment chamber, at least in certain regions, such that a longitudinal direction of the workpieces is oriented at least approximately horizontally and/or forms an angle of at least approximately 90° with the conveying direction.

7. The treatment installation according to claim 1 , wherein the treatment installation includes at least one inlet opening for supplying gas to the treatment chamber and at least one outlet opening for removing gas from the treatment chamber, which are arranged on mutually opposing sides of the workpiece, wherein the at least one inlet opening on the one hand and the at least one outlet opening on the other are arranged on mutually different sides of a vertical workpiece transverse center plane.

8. The treatment installation according to claim 1 , wherein at least one inlet opening and at least one outlet opening are arranged at a distance from one another that is at least approximately 60% of a total length of the workpiece, as seen in a workpiece longitudinal direction.

9. The treatment installation according to claim 1 , wherein the at least one inlet opening and the at least one outlet opening are arranged offset in relation to the conveying direction.

10. The treatment installation according to claim 1 , wherein the treatment installation includes at least one inlet opening for supplying gas to the treatment chamber and at least one outlet opening for removing gas from the treatment chamber, wherein the at least one inlet opening on the one hand and the at least one outlet opening on the other are arranged on different sides of the treatment chamber in relation to a vertical longitudinal center plane of the treatment chamber.

11. The treatment installation according to claim 1 , wherein the treatment installation includes one or more inlet openings for supplying gas to the treatment chamber and/or one or more outlet openings for removing gas from the treatment chamber, wherein the one or more of the inlet openings are arranged in one of two semi-chambers of the treatment chamber that are divided by a longitudinal center plane that runs vertically, horizontally or obliquely thereto, and/or wherein the one or more of the outlet openings are arranged in one of the two semi-chambers of the treatment chamber that are divided by the longitudinal center plane that runs vertically, horizontally or obliquely thereto.

12. The treatment installation according to claim 1 , wherein the treatment installation includes a plurality of inlet openings for supplying gas to the treatment chamber and a plurality of outlet openings for removing gas from the treatment chamber, wherein the inlet openings on the one hand and the outlet openings on the other are arranged at least approximately opposite one another in relation to a diagonal plane, wherein the diagonal plane extends parallel to the conveying direction and substantially diagonally through the treatment chamber.

13. The treatment installation according to claim 1 , wherein the treatment installation includes a plurality of inlet openings for supplying gas to the treatment chamber and a plurality of outlet openings for removing gas from the treatment chamber, wherein the inlet openings and the outlet openings are arranged such that gas is flowable through the treatment chamber transversely to the conveying direction and/or at least approximately diagonally.

14. The treatment installation according to claim 1 , wherein each circulating air module further includes the following:
a gas supply for supplying gas to the treatment chamber; and/or
a gas removal arrangement for removing gas from the treatment chamber; and/or
a fan device for driving a circulating air gas stream; and/or
a separation device for separating contaminants out of the circulating air gas stream; and/or
a collecting device by which the circulating air gas stream that is removed from the treatment chamber through a plurality of outlet openings of the gas removal arrangement is mergeable.

15. The treatment installation according to claim 1 , wherein the treatment installation includes one or more return ducts that each connect one or more outlet openings, through which a gas stream is removable from the treatment chamber, to a respective one or more inlet openings for supplying the circulating air gas stream and/or a flushing gas stream to the treatment chamber, wherein the one or more return ducts run at least approximately along planes that are oriented perpendicular to the conveying direction or extend at least approximately along planes that are oriented perpendicular to the conveying direction.

16. The treatment installation according to claim 15 , wherein one or more of the return ducts and the one or more outlet openings and one or more inlet openings that are connected to one another by the respective return duct, an annular gas flow is producible within a circulating air module, and this annular gas flow extends at least approximately along a plane that is oriented perpendicular to the conveying direction.

17. The treatment installation according to claim 1 , wherein the treatment installation includes a heating installation that includes a self-contained heating gas guide arrangement, wherein a plurality of circulating air modules are coupled to the heating gas guide arrangement.

18. The treatment installation according to claim 1 , wherein the treatment installation includes at least one flushin

Assignees

• Duerr Systems Ag

Inventors

• Iglauer Oliver
• Woll Kevin
• Wieland Dietmar
• Wickenhaeuser Joachim

Classifications

• F26B21/25

  partly outside the drying enclosure · CPC title

• B60S3/002

  Vehicle drying apparatus · CPC title

• F26B2210/12

  Vehicle bodies, e.g. after being painted · CPC title

• F26B15/16

  the objects or batches of materials being carried by wheeled trucks · CPC title

• F26B3/04

  the gas or vapour circulating over or surrounding the materials or objects to be dried (F26B3/14 takes precedence) · CPC title