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US 4,382,170 AGranted
Thermal cutting jet device with suction apparatus
AssigneeTrumpf GmbH & Co.
InventorHans Klingel
Life of this patent
Estimating the term…
Abstract
In plasma/water cutting, in order to reduce the space required, it is suggested to construct the thermal cutting jet device so that water, required particularly to constrict the plasma jet, is removed by means of an annular suction nozzle or a ring of annular suction bores arranged around the thermal cutting jet device. In order to reduce the resulting noise, a spraying device can be arranged around the annular suction nozzle whose water is fed back to a tank either by a suction device for the cutting jet device, or by an additional suction device.
Claims12
A machine for processing flat workpieces comprising:
- a support;
- a cutting jet nozzle connected to said support for discharging a cutting jet downwardly to cut a workpiece at a cutting location spaced above a workpiece to be cut;
- liquid nozzle means connected to said support for discharging a liquid stream concentrically of the cutting jet, said liquid nozzle means mounted concentrically of said cutting jet nozzle;
- drive means connected to said support for moving a workpiece in the plane of the workpiece and past said jet nozzle;
- and
- suction means connected to said support and concentrically mounted around said jet nozzle, and including suction nozzle means concentric of said jet nozzle for drawing up gas and liquid from the cutting area, said suction nozzle means being positioned closer to a workpiece to be cut than said jet nozzle during discharge of said cutting jet so as to place said suction nozzle means as close as possible to a workpiece to be cut.
3 more elements
Dependencies are inferred from the claim text.