Automatik Apparate-maschinenbau H. Hench Gmbh

Rieter Automatik Gmbh

Automatik Apparate-maschinenbau Gmbh

Automatik Apparate-machinenbau H. Hench Gmbh

Automatik Apprate-maschinenbau H. Hench Gmbh

Automatik Apparate-machinenbau Gmbh

Friedrich Hunke

Hans H Hench

Horst H Lettner

Heinz Philipp

Heinrich Philipp

Horst Lettner

Device for cooling, granulating and drying molten strands of synthetic

Apparatus for cooling and granulating extrusions of thermoplastic

A device for granulating strands of thermoplastic materials that are discharged molten from several nozzles side by side, with a cutter roll acting on a counterknife and a feed device filled with cooling water located prior to the cutter roll. The feed device consists of the support face of the counterknife approximately radial to the cutter roll, which essentially completely fills up the space between the nozzle surface and the cutter roll and onto which the cooling water is sprayed.

Device for granulating strands of thermoplastic materials

Extrusion apparatus for extruding plastic filaments and having a trough for cooling filaments, the trough being pivoted about a horizontal pivot means such that the upper end of the trough can pass from the collecting position through the fall line of the filaments to a position where the filaments fall behind the trough.

Apparatus for feeding of molten strands to a drainage trough

Feeding of molten plastic strands into a discharge trough. At its upper end the discharge trough includes a slidably movable segment that can be extended behind the fall line of the strands as they emerge from nozzles. In its operating position, the extended segment catches the strands, and can be moved into a fore-running or non-operating position permitting free passage of the strands at the side of the discharge trough. A separational element is associated with the movable segment. As the segment is moved through the fall line of the strands, the separational element acts upon the strands and effects the desired separation. The strands which enter the discharge trough are cooled and ultimately fed to a granulator.

Feeding of molten strands to a discharge trough

A device for the dehydration and drying of solids, especially granulated plastic materials, in the form of a mixture of granulate and water. Water passes through a curved sieve by an air current that flows in the direction in which the water passes through the sieve and also flows along the sieve. The mixture of granulate and water is delivered to the curved sieve through a delivery channel and whirled, by the energy of the air current, over the curved sieve and conveyed to an outlet duct, at the end of the curved sieve. On the curved sieve, an air jet that runs at an angle to the sieve, is directed for the admission of the air current. The mixture of granulate and water that is carried along by the air current, hits the curved sieve at an angle ranging, approximately between 25.degree. to 75.degree. in relation to the curved sieve. In the direction of flow, behind the air jet, is a cover which covers the curved sieve. The cover is adjacent to the rear wall of the air jet, and extends to the outlet passage. The cover is mounted to guide the granulate executing a shuttling rebound movement between the cover and the curved sieve.

Device for the dehydration and drying of solids, especially of

The present apparatus cools and granulates thermoplastic strands. For this purpose two cooling chutes are arranged in mirror symmetric, back to back fashion between the strand ejecting nozzles and the input gap between two feeding rollers which supply the strands to a cutting roller. The upper ends of the chutes receive the strands from two sets of nozzles such as extruder nozzles. The nozzles in one set are arranged in a row staggered relative to the nozzles in the other set so that the strands emerging from one set of nozzles fit into the spaces between the strands emerging from the other set of nozzles when the strands enter into the cutter.

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Grossostheim, Germany

Friedrich Hunke