Automatic cleaning device for use in the thermoplastics extrusio

Details Automatic cleaning device for use in the thermoplastics extrusio Automatic cleaning device for use in the thermoplastics extrusio

1988-02-10

1989-04-18

Levy, Stewart J.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

15 4, 425225, G01N 1100

Patent

active

048215767

ABSTRACT:
In an automatic cleaning device for use in the thermoplastics extrusion plastometer including a piston cleaning unit, a conveying unit, a cylinder cleaning unit and a die cleaning unit. The piston cleaning unit cleans the surface of the piston at plasticity testing positions. The conveying unit moves the cylinder from the plasticity testing position to a cylinder cleaning position and to a die cleaning position. The cylinder cleaning unit cleans the interior surface of the cylinder at a cylinder cleaning position. Finally, the die cleaning unit cleans the interior surface of the die at the die cleaning position.

REFERENCES:
patent: 4255109 (1981-03-01), Emmerich et al.

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