Apparatus for manufacture of tubular elements for ink jet printe

Details Apparatus for manufacture of tubular elements for ink jet printe Apparatus for manufacture of tubular elements for ink jet printe

1984-02-06

1987-06-23

Bashore, S. Leon

Glass manufacturing

Control responsive to condition sensing means

65 29, 65162, 65271, C03B 2320

Patent

active

046750436

ABSTRACT:
The apparatus for manufacturing the ink jet glass tubes includes a vertical mandrel which receives the tubes one at a time from a feeder and rotates them relative to a pair of gas nozzles for their heating. The tube is heated in an axially limited intermediary zone so as to form an hour-glass shaped profile.
The profile of the tube is scanned by a television camera which generates two signals indicative of the internal diameter. These are compared electronically with a stored indication of the desired diameter and the two nozzles are rotated into an inactive position when this diameter is reached. The tube is cut along a plane so as to make the profile of the nozzle coincident with a reference profile by a device including an optical device connected to a cutting wheel to permit comparison of the hour-glass profile of the element with the reference profile. The severed end of the tube is then lapped and covered with a non-wettable material. The tubular element is bonded within a piezo-electric transducer, by locating the latter partially in a chamber, after fitting it over the tubular element, while a pump draws an epoxy resin through the chamber and into the space between the transducer and the tubular element.

REFERENCES:
patent: 3556758 (1971-01-01), Andrews et al.
patent: 3576611 (1971-04-01), Obersby
patent: 3652248 (1972-03-01), Loxley et al.
patent: 3874867 (1975-04-01), Dichter
patent: 3985535 (1976-10-01), Bennett et al.
patent: 4111677 (1978-09-01), Andrews
patent: 4330317 (1982-05-01), Vertova
patent: 4372773 (1983-02-01), Halasz
N. M. Protsenko et al, Steklo: Keramika, p. 12-13, Oct. 1974.

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