Method and a machine for the production of hollow glassware articles

A machine for the production of hollow glassware articles by the blow-and-blow process, press-and-blow wide mouth or narrow neck process, press-and-blow paste mold process and direct press process in a glassware forming machine including single or multiple machine sections, each section having single or multiple cavities, comprising:

• a) a machine section frame;
• b) an apparatus support frame mounted on the machine section frame;
• c) power and fluid feeding means in both of said machine section frame and apparatus support frame, to provide electric energy, lubricants and cooling and operating fluid to the machine section;
• d) a parison forming station PFS, comprising
• i) a first and a second transferable and open-able neck ring molds, per cavity, each to be alternately and removable placed under the blank mold;
• ii) a blank mold apparatus, mounted on a blank mold support frame mounted in turn on the mechanism support frame, including a blank mold per cavity, for forming a parison;
• iii) a guide-funnel apparatus mounted on the apparatus support frame and comprising a guide-funnel per cavity, for guiding a glass gob into the blank mold;
• iv) a baffle apparatus mounted on the apparatus support frame, comprising:
• baffle head means per cavity, for forming the bottom of the parison;
• v) a pressing plunger apparatus, mounted on a floor cover of the machine section frame, for forming a parison, comprising:
• an arrangement of multiple telescopic cylinder and piston assemblies per cavity;
• e) an indexed unidirectional rotary inverting apparatus including:
• a rotary support driving mechanism mounted on the apparatus support frame;
• a driving mechanism to be unidirectional indexed rotated therby firstly 180°, clockwise, moving the parison upwardly constricting it, or counterclockwise moving the parison downwardly stretching it, and then additional 180° completing a 360° turn;
• a first open-able horizontal holding arm holding the first transferable and open-able neck ring mold, initially retained under the blank mold when it is closed to form the parison, and a second open-able horizontal holding arm placed stepped, inverted and diametrically opposed to the first open-able horizontal holding arm, holding a second transferable and open-able neck ring mold, said first and second open-able horizontal holding arms are mounted on a rotary support driving mechanism, to indexed unidirectional and simultaneously rotate firstly 180° clockwise moving the parison upwardly constricting it or counterclockwise moving the parison downwardly stretching it around an horizontal rotary axis, to invert a first formed parison held by the first transferable and open-able neck ring mold, to an intermediate station, at an upright orientation, simultaneously placing the second transferable and open-able neck ring mold under the blank mold for another parison forming cycle, and then rotates additional 180°, completing a 360° turn, to place again the first open-able horizontal holding arm with the first transferable and open-able neck ring mold, empty, under the blank mold;
• and a neck ring holding and releasing mechanism for uniformly and simultaneously opening and closing the neck ring holding arms mounted on the rotary support driving mechanism placed outside of the horizontal rotary axis, to release the transferable and open-able neck ring molds remaining supported by it at an intermediate station to be held by a transference apparatus;
• f) a transference apparatus, mounted on the apparatus support frame, to transfer a parison held by an transferable and open-able neck ring mold from the indexed unidirectional rotary inverting apparatus at the intermediate station to the blow forming station, comprising:
• mounting means, mounted on the apparatus support frame;
• a driving mechanism mounted on said mounting means;
• an oscillatory hollow arm, mounted on said driving mechanism to provide it an oscillatory movement;
• a parison transference mechanism, mounted on said oscillatory hollow arm, including sliding carrier holders, mounted on said oscillatory hollow arm, including holding arms normally maintained closed, and gripping fingers coupled to the holding arms for internally gripping the transferable and open-able neck ring mold;
• and a two-positions opening mechanism coupled to the carrier holders, so that, at a first position of the two-positions opening mechanism, the gripping fingers are partially opened in order to grip the transferable and open-able neck ring mold gripping a parison, while simultaneously the open-able horizontal neck ring holding arms of the indexed unidirectional rotary inverting apparatus are opened releasing said transferable and open-able neck ring mold, and be retained by the gripping fingers of this transference apparatus at the intermediate station, and at a second position, the holding arms are additionally opened, in order to additionally open the gripping fingers, opening the transferable and open-able neck ring mold releasing the parison to vertically fall flat into a blow mold apparatus, but keeping the transferable and open-able neck ring mold held by the gripping fingers;
• and in the inverse way, said gripping fingers of the transference apparatus return the empty transferable and open-able neck ring mold closed at the intermediate station, and are further closed, releasing the empty transferable and open-able neck ring mold at the open-able horizontal holding arms of the indexed unidirectional rotary inverting apparatus to be held thereby for a following forming cycle;
• g) a blow forming station including:
• i) a blow mold apparatus mounted on the machine support frame;
• ii) a bottom mold plate mechanism for forming the bottom of the article when it is embraced by the blow mold halves of the blow mold at the blow forming station;
• and
• iii) a blow head appartus, for providing a blow for finishing the glassware article;
• h) a take out apparatus, mounted on the apparatus support frame, to transfer a finished article from the blow mold station to a cooling dead plate or to a carrier conveyor;
• and
• i) programmable control means, to control the movements, cycle time and sequence of steps of all of the mechanisms of the machine, as well as the tooling and electric power, fluid and lubrication operation of all of the mechanisms of the machine, in accordance with the type of glassware articles to be produced and the amounts of glassware articles and velocity of production of the machine.