Device for water-jet cutting or abrasive water-jet cutting units
AssigneeBhdt GmbH
InventorsFranz Trieb, Alwin Timmermann
Life of this patent
Estimating the term…
Abstract
Control device and method for controlling the impingement of the workpiece by a water jet or an abrasive water jet in a cutting unit. Control device includes a feeder composed of at least two flow-through areas positionable between a high-pressure water supply and a jet nozzle of the cutting unit. At least one of the flow-through areas includes a high pressure area, and at least one of the flow-through areas includes a pressure-reducing area. At least one switchable valve is arranged in the high-pressure area, a pressure-reducing mechanism is arranged in the pressure reducing area, and an impingement line is coupled to the at least two flow-through areas and coupleable to the jet nozzle.
Claims21
A control device for controlling the impingement of a workpiece by a water jet or an abrasive water jet in a cutting unit, the control device comprising:
- a feeder composed of at least two flow-through areas positionable between a high-pressure water supply and a jet nozzle of the cutting unit, wherein at least one of the flow-through areas includes a high pressure area, and at least one of the flow-through areas includes a pressure-reducing area;
- at least one switchable valve arranged in the high-pressure area;
- a pressure-reducing mechanism arranged in the pressure reducing area;
- and
- an impingement line coupled to the at least two flow-through areas and coupleable to the jet nozzle;
- and
- further comprising:
- the at least one switchable valve being arranged in parallel to the pressure reducing area;
- and
- at least one hole breakthrough sensor adapted to control the control device.
A control device for controlling the impingement of a workpiece by a water jet or an abrasive water jet in a cutting unit, the control device comprising:
- a feeder composed of at least two flow-through areas positionable between a high-pressure water supply and a jet nozzle of the cutting unit, wherein at least one of the flow-through areas includes a high pressure area, and at least one of the flow-through areas includes a pressure-reducing area;
- a first switchable valve arranged in the high-pressure area;
- a second switchable valve arranged upstream of the first switchable valve;
- a pressure-reducing mechanism arranged in the pressure reducing area;
- and
- an impingement line coupled to the at least two flow-through areas and coupleable to the jet nozzle,
- wherein at least the first switchable valve in the high-pressure area is controlled by at least one hole breakthrough sensor.
A method of controlling the impingement of water on a workpiece by a water jet or an abrasive water jet in a cutting unit, comprising:
- supplying high-pressure water to a control device having a first flow-through area and a second flow-through area;
- controlling flow of a portion of the high-pressure water through the first flow-through area using a switchable valve;
- controlling flow of a portion of the high-pressure water through the second flow-through area;
- piercing a portion of a workpiece with the portion of the water through the second flow-through area;
- and
- switching to the portion of water through the first flow-through area to cut the workpiece,
- wherein:
- the switchable valve is arranged in parallel to the second flow-through area;
- and
- at least one hole breakthrough sensor is structured and arranged to control the switchable valve.
A method of controlling the impingement of water on a workpiece by a water jet or an abrasive water jet in a cutting unit, comprising:
- supplying high-pressure water to a control device having a first flow-through area and a second flow-through area;
- controlling flow of a portion of the high-pressure water through the first flow-through area using a first switchable valve;
- controlling flow of a portion of the high-pressure water through the second flow-through area using a second switchable valve;
- piercing a portion of a workpiece with the portion of the water through the second flow-through area;
- and
- switching to the portion of water through the first flow-through area to cut the workpiece,
- wherein the first switchable valve is controlled by the second switchable valve and by at least one hole breakthrough sensor.
Dependencies are inferred from the claim text.