Dennis J Chaney

US Patent:

47282762, Mar 1, 1988

Filed:

Jan 31, 1986

Appl. No.:

6/824645

Inventors:

General J. Pauley - Daleville VA
Donald W. Smith - Troutville VA
Dennis M. Chaney - Scott Depot WV
Samuel F. Hannah - Eagle Rock VA
J. Wayne Martin - Buchanan VA

Assignee:

Gala Industries, Inc. - Eagle Rock VA

International Classification:

B29C 4700

US Classification:

425 67

Abstract:

An underwater pelletizer providing more efficient formation of uniform size pellets including the provision of a taper on the die holes so that polymer will freeze near the exit and form an insulated die hole and a resultant cylindrical die hole for smooth polymer flow, axially movable ball bearing assemblies to support the pelletizer shaft in a housing, a threaded assembly with a thrust bearing to axially adjust the pelletizer shaft for compensating for blade wear, radial clearance for the outer race of the thrust bearing to eliminate preloading of the axially movable ball bearings, a gear coupling between the shaft and driving motor to permit axial movement of the shaft for blade adjustment, and a spring support for the pelletizer, all of which cooperate to form an effective underwater pelletizer which will efficiently produce uniform plastic pellets.