Colour-changer

A color changer and valve device technology, applied in the field of color changers, can solve the problems of difficulty in detecting valve device leakage, unusable paint results, and the interconnection of atomizers is not always feasible, and achieves the effect of compact arrangement

Inactive Publication Date: 2015-05-13
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if it is foreseeable that the control mechanism prevents the simultaneous switching of the valve means, in the event of a fault in the control mechanism it cannot always be ruled out that more than one paint supply channel is connected to the output channel
[0004] Also in the event of a leak in one of the valve components, mixing of different paint materials will occur and the paint result will be unusable
It is very difficult to detect leakage of valve parts, in most cases, only indirectly by detecting the result of unusable paint
Furthermore, in the case of objects being painted by different robots (respectively, atomizers), the correlation of unusable paint results to a certain atomizer is not always possible
Thus it takes more time to find the corresponding defective color changer

Method used

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  • Colour-changer

Examples

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Embodiment Construction

[0034] figure 1 An exemplary color changer 10 is shown in a schematic diagram. Paint supply channels 16 , 18 , 20 lead to output channel 12 . Each of the paint supply channels 16, 18, 20 can be switched on and off by respective valve means 22, 24, 26 which are closed in their normal state and can be opened by applying pressure on the respective pressure lines 28, 30, 32. (such as air pressure) to operate the corresponding valve device.

[0035] With one of the valve means 22, 24, 26 actuated and open, paint material from a not shown paint supply system flows into the output channel 12 and from there through the second valve means 52, through the output 14 to Paint atomizer not shown. The second valve means 52 makes it possible to close the output 14 so that paint cannot flow to the atomizer when the second valve means 52 is in the closed state, as required eg during a color change or cleaning process. This cleaning process should be done before filling the output channel 1...

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Abstract

The invention is related to a Colour-changer (10), comprising an output-channel (12) with a belonging outlet (14) for paint material and paint-supply-channels (16, 18, 20) leading thereto (12) which are switchable each by belonging first valve-means (22, 24, 26), wherein at least the first valve-means (22, 24, 26) are pilotable by a pressured fluid which is conducted through a belonging pressure-line (28, 30, 32) having a belonging inlet (34, 36, 38) each. Exact one switchable pressure-supply-outlet (42) is foreseen which is alternatively connectable with one of the inlets (34, 36, 38) of the pressure-lines (28, 30, 32), so that at most one of the belonging valve-means (22, 24, 26) is switchable at the same time. The invention is also related to a belonging method for determining a leakage of the valve-means of such a colour-changer.

Description

technical field [0001] The invention relates to a color changer comprising: an output channel with a corresponding outlet for paint material; and paint supply channels leading to the output channel, which are each switchable by a corresponding first valve means, wherein at least the first valve means Manipulable by pressurized fluid conducted through respective pressure lines each having a respective inlet. The invention also relates to a method for determining leakage of a valve device of a color changer according to the invention, wherein a paint supply channel is connected to a corresponding paint supply line. Background technique [0002] It is known that in industrial paint shops, for example in the automotive industry, a large number of paint colors are used. Such paint shops are typically robot based and designed for many (eg 20 to 30) paint colors with a cycle time of eg 60 to 90 seconds per object to be painted. Usually a color changer can be mounted on the corres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B12/00B05B12/14B05B15/02B05B15/55
CPCB05B12/006B05B12/1409B05B12/149B05B15/55G01M3/2876
Inventor A.克罗格达尔
Owner ABB (SCHWEIZ) AG
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