Device for continuously measuring and correcting tackiness of sh

Details Device for continuously measuring and correcting tackiness of sh Device for continuously measuring and correcting tackiness of sh

1990-05-04

1991-09-17

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

73150R, 264 401, 264340, 425 90, 425169, 425445, B29C 700, G01B 500, G01N 1904

Patent

active

050490575

ABSTRACT:
A device for continuously measuring and correcting a tackiness of a sheet of rubber material including a feeding unit for continuously feeding an unvulcanized rubber sheet along a flat support surface and a rotatable roller in contact with the unvulcanized rubber sheet, whereby the roller is rotated by the movement of the unvulcanized rubber sheet, and entrained in the sheet feed direction due to a tackiness of the unvulcanized rubber sheet. A load cell is connected to the roller via a linkage, for measuring a resistance to the rolling of the roller, i.e., a change of a position of the roller entrained in the sheet feed direction. The device also includes a correcting unit for correcting a tackiness of the sheet of unvulcanized rubber material, the correcting unit being controlled by a control element in response to an output from the measuring unit, in such a manner that the correcting unit acts on the surface of the unvulcanized rubber sheet of rubber material when an output from the measuring unit is outside a predetermined range of tackiness.

REFERENCES:
patent: 2762219 (1956-09-01), Prentiss
patent: 2960865 (1960-11-01), Brown
patent: 3436963 (1969-04-01), Domen
patent: 3559475 (1971-02-01), Dillon
patent: 3901149 (1975-08-01), Schulte-Kulkmann
patent: 4312212 (1982-01-01), Clendenin

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