Manufacture of tubular elements for ink jet printers

摘要: A method for the manufacture of tubular elements (15) substantially transparent material entails progressive reduction diameter element while its internal is measured continuously and stopping this when reaches a predetermined measurement. In order to form glass tube an ink-jet printer in effected by heating axially limited section so as hour-glass shaped profile. The then cut along plane make profile coincide with reference severed end lapped covered non-wettable material. Finally glued under vacuum within cylindrical piezo-electric transducer. apparatus manufacturing tubes includes vertical mandrel (12) which receives one at time from feeder (17, 18) rotates them relative pair gas nozzles (13) said ofthe scanned television camera (24) generates two signals indicative diameter. These are compared electronically (23) stored indication desired rctated into inactive position reached. optical device provided connected cutting wheel permit comparison (11) bonded tranducer, locating latter partially chamber, after fitting it over element, pump draws epoxy resin through chamber space between transducer element.