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US 8,418,647 B2Granted
Procedure and piston type metering devices for the metered material supply for a coating device
AssigneeDürr Systems AG
InventorHerbert Martin
Life of this patent
Estimating the term…
Abstract
A dual action piston type metering device is installed between the color changer of a coating system and its atomizer, the metering cylinder of which includes two input ports with the color changer output ports connected to the atomizer. The dual action piston type metering device enables the alternating operation of the cylinder ranges (A/B-operation) with only one single metering cylinder.
Claims12
A piston metering device for metered material feed, comprising:
- a metering cylinder which has input and output ports for automatically controlled connection to input and output lines;
- a coating apparatus connected to the output ports of the metering cylinder;
- a piston arrangement displaceable inside the metering cylinder, and;
- at least one driving element through which the piston arrangement is connected to at least one automatically controlled metering drive,
- wherein the metering cylinder is configured to meter coating material during application by the coating apparatus;
- and
- wherein the metering cylinder has two input ports and two output ports connecting the metering cylinder to the input and output lines, and a first one of the input ports is axially spaced with respect to the metering cylinder from a second one of the input ports and a first one of the output ports is axially spaced with respect to the metering cylinder from a second one of the output ports.
4 more elements
A coating system for the production coating of work pieces, comprising:
- a piston metering device for metered material feed, comprising:
- a metering cylinder which has input and output ports for automatically controlled connection to input and output lines;
- a coating apparatus connected to the output ports of the metering cylinder,
- a piston arrangement displaceable inside the metering cylinder, and;
- at least one driving element through which the piston arrangement is connected to at least one automatically controlled metering drive,
- wherein the metering cylinder is configured to meter coating material during application by the coating apparatus;
- and
- wherein the metering cylinder has two input ports and two output ports connecting the metering cylinder to the input and output lines, and a first one of the input ports is axially spaced with respect to the metering cylinder from a second one of the input ports and a first one of the output ports is axially spaced with respect to the metering cylinder from a second one of the output ports;
- and
- a color change valve connected to the two input ports of the metering device,
- a coating apparatus connected to the two output ports of the metering cylinder, and
- wherein the metering drive is configured to meter coating material during application by the coating apparatus independent of a work piece range associated with the coating apparatus.
9 more elements
A piston metering device for metered material feed of a coating device, comprising:
- a metering cylinder which has input and output ports for automatically controlled connection to input and output lines;
- a piston arrangement displaceable inside the metering cylinder, and;
- at least one driving element through which the piston arrangement is connected to an automatically controlled metering drive,
- wherein the metering cylinder has two input ports and two output ports connecting the metering cylinder to the input and output lines, and a first one of the input ports is axially spaced with respect to the metering cylinder from a second one of the input ports and a first one of the output ports is axially spaced with respect to the metering cylinder from a second one of the output ports;
- and
- wherein the piston arrangement is formed by two piston elements between which an insulating material is provided with which on one side runs a high voltage potential, against on the other side, a low potential coating material is insulatable.
3 more elements
Dependencies are inferred from the claim text.