Lechler Gmbh

Lechler Gmbh & Co. Kg

Hermann Lange

Lothar Bendig

Klaus Landvatter

A device which is designed as a spray head and is intended for lubricating and cooling molds, in particular forging dies and tools in metal forming, is described, in which device the feed passages for coolant, compressed air and lubricant are accommodated in a common compact housing but are designed to run separately from one another, and in which spray nozzles are in each case assigned to these separate flow passages, these spray nozzles being specifically designed for spraying the lubricant and the coolant, respectively. By means of this measure, the spraying operation can be designed in an optimum manner and it becomes possible to keep the lubricant and coolant consumption low.

Device for lubricating and cooling molds, in particular forging dies and tools in metal forming

A nozzle for spraying surfaces is equipped with a piston rod centrally arranged in a feeding duct. The piston rod has an impact plate which is held by a spring in a position aligned with the surface to be sprayed. As a result of liquid pressure, the impact plate arrives in a second end position at a distance from the surface to be sprayed in which. As a result of a ring gap on an input side around the piston rod, the impact plate becomes a deflecting part for the spraying liquid exiting in a ring shape, which, in a circular spraying cone directed at a flat angle with respect to the surface to be sprayed, is then emitted onto the surface to be sprayed.

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Metzingen, Germany

Hermann Lange