Method and device for applying a paste
AssigneeSCA Schucker GmbH & Co. KG
InventorJosef Schucker
Life of this patent
Estimating the term…
Abstract
In the method described, a compound substantially in the form of a paste is fed by means of a pump from a storage container (1) to a metering device (3) which determines the amount of paste to be applied to a workpiece (B). From the metering device, the paste is fed to a spray head (S) where it is mixed with compressed air from a cylinder (4) or other suitable supply and sprayed on to the workpiece (B). The amount of compressed air supplied to the paste for spraying purposes is controlled by means of a control unit (6) in such a way that a strip of substantially constant width is applied to the workpiece (B).
Claims19
A method for applying a paste material, to a workpiece which is moveable relative to a spray device, the method comprising the steps of:
- feeding the paste material to the spray device by the action of a feed pressure;
- separating and/or mixing the paste material with a compressed gas within the spray device;
- spraying the paste material onto the workpiece with the workpiece and the spray device being moved relative to one another;
- measuring a temperature of the paste material prior to its entry into the spray device;
- and
- controlling the amount of compressed gas supplied per unit of time to the paste material in functional dependency on the measured temperature, so that a strip of paste material of essentially constant width is sprayed on along the workpiece.
A method for applying a paste material to a workpiece which is moveable relative to a spray device, the method comprising the steps of:
- feeding the paste material to the spray device by the action of a feed pressure;
- separating and/or mixing the paste material with a compressed gas within the spray device;
- spraying the paste material onto the workpiece with the workpiece and the spray device being moved relative to one another;
- determining the feed pressure of the paste material as a measure of its viscosity prior to its entry into the spray device;
- adjusting a volume or mass stream of the paste material to a set value by varying the feed pressure at a constant flow cross section of the spray device;
- and
- controlling the amount of compressed gas supplied per unit of time to the paste material in functional dependency on the measured feed pressure so that a strip of paste material of essentially constant width is sprayed on along the workpiece.
A device for applying a strip of a paste material, to a workpiece, comprising:
- a spray head moveable relative to the workpiece;
- means for supplying said paste material into said spray head;
- means for supplying a compressed gas to the spray head, said compressed gas being mixed with the paste material before being applied to the workpiece;
- temperature sensing means positioned upstream of the spray head for measuring the temperature of the paste materials;
- temperature sensitive regulator means for controlling the supply of compressed gas to the spray head, dependent on a set width of the mass strip to be applied along the workpiece.
A device for applying a strip of paste material to a workpiece, comprising:
- a spray head moveable relative to the workpiece;
- means for supplying said paste material to said spray head;
- means for supplying compressed gas to the spray head, said compressed gas being mixed with the paste material before being applied to the workpiece;
- pressure sensing means positioned upstream of the spray head for measuring the feed pressure of the paste material as a measure of the viscosity of said paste material;
- paste material regulator means positioned upstream of the spray head for adjusting the volume or mass stream of the paste material to a set value by varying the feed pressure at a constant flow cross section in the spray head;
- and
- feed pressure sensitive regulator means for controlling the supply of compressed gas to the spray head, determined by a set width of the mass strip of paste material to be applied along the workpiece.
Dependencies are inferred from the claim text.