Rubber kneading machine

Details Rubber kneading machine Rubber kneading machine

2008-04-08

2008-04-08

Sorkin, David (Department: 1797)

Agitating

Rubber or heavy plastic working

Roll couple and scraper

C366S073000, C366S076400, C366S085000, C366S136000

Reexamination Certificate

active

10519836

ABSTRACT:
A rubber kneading machine obviates an operator having to touch rubber on a rotating roll surface to perform a rubber kneading operation, permits unattended operation, is intrinsically safe, improves a rubber kneading process productivity, secures stable quality of kneaded rubber, and allows a closed rubber supplying mechanism to be easily opened and exposed for easy cleaning. The rubber kneading machine includes two horizontal rolls closely disposed vertically, decelerators and variable speed motors rotating the rolls at different speeds, and a screw extruder supplying a rubber lump fed into a hopper at a proximal end to the rolls. A rubber circulating mechanism constructed mainly of a scraper and a belt conveyor, or a belt conveyor above the upper roll, feeds a rubber sheet, which has left the rolls, to the hopper. A mechanism releasing the screw extruder makes it possible to open and expose closed portions to facilitate cleaning.

REFERENCES:
patent: 1326375 (1919-12-01), Spencer
patent: 2573825 (1951-11-01), Banovesky et al.
patent: 07-237236 (1995-09-01), None
patent: 10-138243 (1998-05-01), None
patent: 11-314261 (1999-11-01), None
patent: 01/47678 (2001-07-01), None
Machine Generated English Translation of JP 10-138243, generated Mar. 1, 2007.

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