WO2012017332A2 - Procédé de fabrication d'un récipient en verre à tons multiples à partir d'au moins deux paraisons ayant des couleurs disparates - Google Patents

Procédé de fabrication d'un récipient en verre à tons multiples à partir d'au moins deux paraisons ayant des couleurs disparates Download PDF

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Publication number
WO2012017332A2
WO2012017332A2 PCT/IB2011/002660 IB2011002660W WO2012017332A2 WO 2012017332 A2 WO2012017332 A2 WO 2012017332A2 IB 2011002660 W IB2011002660 W IB 2011002660W WO 2012017332 A2 WO2012017332 A2 WO 2012017332A2
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WO
WIPO (PCT)
Prior art keywords
gob
vessel
mold
glass
tone
Prior art date
Application number
PCT/IB2011/002660
Other languages
English (en)
Other versions
WO2012017332A3 (fr
Inventor
Michael Arnold Albert Kramer
Original Assignee
Group Pavisa, S.A. De C.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Group Pavisa, S.A. De C.V. filed Critical Group Pavisa, S.A. De C.V.
Priority claimed from US13/136,546 external-priority patent/US20120036894A1/en
Publication of WO2012017332A2 publication Critical patent/WO2012017332A2/fr
Publication of WO2012017332A3 publication Critical patent/WO2012017332A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/31—Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/13—Blowing glass; Production of hollow glass articles in gob feeder machines
    • C03B9/14—Blowing glass; Production of hollow glass articles in gob feeder machines in "blow" machines or in "blow-and-blow" machines
    • C03B9/145—Details of machines without turn-over moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/34—Glass-blowing moulds not otherwise provided for
    • C03B9/342—Neck moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/36—Blow heads; Supplying, ejecting or controlling the air

Definitions

  • 35 colored molten-glass gobs yields vessels combining the artistry and uniqueness traditionally resulting from hand-blowing with the dimensional reproducibility required for mass production.
  • Implementations of the present invention are generally directed to a method of mass-producing consistently-dimensioned, multi-tone (e.g., two-tone) glass vessels 5 from at least two disparately-colored molten-glass gobs while maintaining structural integrity.
  • multi-tone e.g., two-tone
  • Glass transparent or “clear” is regarded as a color throughout the present description and the claims appended hereto. Accordingly, one glass might be transparent, while another at least partially opaque.
  • an "initial" or “first" gob of molten glass of a first color i s is gathered.
  • the molten-glass first gob is removed from a glass furnace by gathering it about a distal end of an elongated gathering implement such as a rod, tube or gathering iron, by way of example.
  • the first gob is introduced into a pre-form mold into which - in one implementation - an initial quantity of gas, such as air, by way of non-limiting example, is injected in order to form the initial gob into a
  • the pre-from mold is vertically oriented such that molten glass is introduced through an open upper end thereof and the gas is introduced through an opening at a lower end opposite the upper end. In this manner, the injection of an initial quantity of gas through the lower end of the pre-form mold forms a cavity within the first gob that fills with gas and causes the first gob to expand and
  • a molten-glass second gob of a second color, contrasting in color with the first color is introduced into the pre-form mold over the partially-inflated first gob. Steps are taken to ensure that the glass is acceptably distributed within the pre-from mold.
  • additional gas is introduced into the pre-form mold in order to form the first and second gobs into a single pre-form vessel having at least one pre-form vessel wall defining a pre-form vessel exterior surface and a pre-form vessel interior surface defining a pre-form 5 vessel cavity.
  • the quantity of gas blown into the pre-form mold depends, in part, on the desired wall and base thicknesses of the vessel being formed.
  • the pre-form vessel when the pre-form vessel is sufficiently cool and "self- supporting" to retain its basic shape, it is removed, while still hot, from the pre-form mold, and introduced into a finish mold. If required, the pre-form vessel is heated
  • a quantity of gas is injected into the pre-form vessel cavity in order to form the pre-form vessel into a finished vessel having at least one finished vessel wall defining finished vessel i s exterior and interior surfaces, the later surface further defining a finished-vessel storage cavity.
  • the pre-form and finish molds are actually the same physical mold which, when used in a "pre-forming” step is referred to as a "pre-form mold” and, when used in a “finish-molding” step is referred to as a "finish mold.”
  • 30 final molding step is regarded as a finish molding step involving a finish mold.
  • apparatus controlled by a programmable computer are variously utilized in the performance one or more steps.
  • a computer-controlled pneumatic injector is particularly useful in ensuring that the quantity and pressure of gas injected into the mold is appropriate, precise and selectively tunable.
  • at least one multi-piece mold can be opened and closed by computer-controlled pneumatics, hydraulics or motor-actuated linkages.
  • FIG. 1 depicts a molten-glass first gob being extracted from a glass furnace
  • FIG. 2 shows the molten-glass first gob of FIG. 1 being deposited into an open- top vessel-defining pre-form mold
  • FIG. 3 depicts the partial inflation, and upward expansion, of the first gob of FIG. 2 as a gas is introduced into a lower end of the pre-form mold;
  • FIG. 4 illustrates the deposition of a molten-glass second gob, contrasting in color with the first gob of FIGS. 1-3, on top of the partially-inflated first gob within the pre-form mold of FIGS. 1 and 2;
  • FIG. 5A depicts the open pre-form mold and the injection of gas to force the molten gob to assume a non-final shape defined by the pre-form mold, although the pre-form mold would not be open when gas is injected;
  • FIG. 5B shows a non-finally-shaped pre-form vessel after removal from the pre- form mold
  • FIG. 5C depicts the non-finally-shaped pre-form vessel of FIGS. 5A and 5B situated in an open finish mold
  • FIG. 6 shows the finish mold of FIG. 5C in a closed position so that gas can be introduced to finalize the basic shape of the pre-form vessel of FIGS. 5A-5C;
  • FIG. 7 illustrates the feeding into an annealer a finished vessel resulting from the molding step associated with FIG. 6.
  • FIGS. 1 through 7 there are described alternative 10 illustrative methods of fabricating a multi-tone glass vessel from at least two disparately-colored molten-glass gobs.
  • a molten-glass first gob 20a of first glass Gi of a first color Ci is gathered around the distal end 12 of an elongated gathering implement 10 and extracted from a furnace 15.
  • the gathering implement 10 is manipulated in order to give the first gob 20a a generally ellipsoidal i s shape.
  • FIGS. 1 through 7 prescribe multi-stage molding processes, each of which includes, as shown in FIG. 2, the introduction of the molten-glass first gob 20a into a pre-form mold 30. With temporary additional reference to FIG. 5A, the illustrative pre-form mold 30 first shown
  • first and second mold portions 32 and 36 with, respectively, first and second interior walls 33 and 37.
  • first and second mold portions 32 and 36 - which are hingedly joined in the example depicted -- are brought into mutual contact
  • the first and second interior walls 33 and 37 define an internal pre-shaping cavity 38.
  • the pre-shaping cavity 38 is configured to define a
  • a pneumatic injector 200 injects an initial quantity of gas 210 into the pre-form mold 30 through an opening 39.
  • the pre-from mold 30 is vertically oriented such that molten glass is introduced
  • the partially-inflated first gob 20a has assumed a predetermined shape and size, as in FIG. 3, for example, a molten-glass second gob 20b of a second glass G2 and second color C 2 , disparate from the first color Ci, is deposited into the pre-form mold 30 over the partially-inflated first gob 20a.
  • an additional, second quantity of gas 210 is introduced into the pre-form mold 30.
  • the internal gas pressure is elevated sufficiently to form the gobs 20a and 20b into a single pre-form vessel 50. While the formation of the gobs 20a and 20b into a pre-form vessel 50 is shown in FIG.
  • the illustrative pre-form vessel 50 of FIG. 5B has a pre-form vessel wall 52 defining a pre-form vessel exterior surface 54 and a pre-form vessel interior surface 56 defining a pre-form vessel cavity 57.
  • the disparately-colored first and second glasses Gi and G 2 have been mutually fused into a unity structure (the pre-form vessel 50).
  • the illustrative finish mold 70 of FIG. 5C includes first and second mold pieces 72 and 76 having, respectively, first and second inside walls 73 and 77.
  • first and second mold pieces 72 and 76 are urged into mutual contact to seal the finish mold 70, the first and second inside walls 73 and 77 define an internal finish-shaping cavity 78.
  • a quantity of gas 210 is injected into the closed finish mold 70, and into the pre-form vessel cavity 57, through a pneumatic injector 200 in order to impart to the pre-form vessel 50 its final shape and form it into what is subsequently regarded as a finished vessel 80.
  • the finish mold 70 is opened in the general manner shown in FIG. 5C, and the finished vessel 80 is removed.
  • an illustrative finished vessel 80 is being fed through an annealer 300 in order to cool the glass in a controlled manner and prevent internal stresses that might cause the glass to crack if it is allowed to cool too quickly.
  • the finished vessel 80 has at least one vessel wall 82 defining finished vessel exterior and interior surfaces 84 and 86.
  • the finished vessel 80 exhibits a two-tone pattern including the mutually fused first and second glasses Gi and G 2 of, respectively, first and second colors Ci and C 2 .
  • alternative implementations involve the use of either (i) a single mold in temporarily separate “pre-forming” and “finish-molding” steps or (ii) two or more physically distinct molds in "pre-forming” and “finish-molding” steps.
  • more intricate final products call for molding in at least two stages with at least two physically distinct molds. For instance, while the formation of a vessel such as a drinking cup might be pre-formed and finish molded in a single physical mold, and perhaps even in a single molding step, a vessel such as a bottle might call for physically distinct pre-form and a finish molds.
  • the particular illustrative finished vessel 80 of FIG. 7 is a bottle 90 which has a main body 92 defining an internal storage cavity 94 and a neck 96 depending from the body 92.
  • the neck 96 is narrow relative to the main body 92 and has a neck opening 98 (or channel) extending therethrough that renders the storage cavity 94 in fluid communication with the exterior of the bottle 90.
  • neck opening 98 or channel
  • the formation of a relatively narrow neck 96 might best be performed in a multi-stage molding process with at least two physically distinct molds. This is particularly true when the neck 96 and the neck opening 98 must be fabricated within "tight" or relatively unforgiving tolerances, as when the bottles 90 being produced are to be sealed by standardized closures such as caps or plugs (not shown).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un récipient en verre à tons multiples consistant à déposer une première paraison en verre fondu ayant une première couleur de verre dans un moule présentant une extrémité inférieure et une extrémité supérieure. Une quantité initiale de gaz est injectée dans le moule afin de former une cavité de paraison dans la première paraison et d'amener la première paraison à gonfler partiellement et à s'élargir en direction de l'extrémité supérieure du moule. Une seconde paraison de verre fondu ayant une seconde couleur de verre est déposée dans le moule au-dessus de la première paraison partiellement gonflée. L'introduction d'une seconde quantité de gaz dans la cavité de la paraison dans le moule façonne les première et seconde paraisons pour obtenir un seul récipient à tons multiples ayant une forme prédéterminée.
PCT/IB2011/002660 2010-08-04 2011-08-04 Procédé de fabrication d'un récipient en verre à tons multiples à partir d'au moins deux paraisons ayant des couleurs disparates WO2012017332A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
MX2010048024 2010-08-04
MXMX/E/2010/04824 2010-08-04
US13/136,546 US20120036894A1 (en) 2010-08-04 2011-08-04 Method of fabricating a multi-tone glass vessel from at least two disparately-colored gobs
US13/136,546 2011-08-04

Publications (2)

Publication Number Publication Date
WO2012017332A2 true WO2012017332A2 (fr) 2012-02-09
WO2012017332A3 WO2012017332A3 (fr) 2012-06-21

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703363A (en) * 1970-04-01 1972-11-21 Owens Illinois Inc Method and apparatus for making glass containers
US4013437A (en) * 1975-05-15 1977-03-22 Owens-Illinois, Inc. Method for forming glass bottles
US5588978A (en) * 1992-11-24 1996-12-31 Imtec Process and apparatus for coloring glass
US20050056057A1 (en) * 2002-01-21 2005-03-17 Fm Marcolin Ab. Process for decorating a hot glass object with molten glass and objects obtained with said process
US20100089859A1 (en) * 2007-09-27 2010-04-15 Stefan Monden Narrow Neck Glass Container with Integral Embossments and Method of Manufacture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703363A (en) * 1970-04-01 1972-11-21 Owens Illinois Inc Method and apparatus for making glass containers
US4013437A (en) * 1975-05-15 1977-03-22 Owens-Illinois, Inc. Method for forming glass bottles
US5588978A (en) * 1992-11-24 1996-12-31 Imtec Process and apparatus for coloring glass
US20050056057A1 (en) * 2002-01-21 2005-03-17 Fm Marcolin Ab. Process for decorating a hot glass object with molten glass and objects obtained with said process
US20100089859A1 (en) * 2007-09-27 2010-04-15 Stefan Monden Narrow Neck Glass Container with Integral Embossments and Method of Manufacture

Also Published As

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WO2012017332A3 (fr) 2012-06-21

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