A blank mould base pressing system (9) for forming a burr-free mouth entry for a glass container to be produced, which blank mould base pressing system comprises a piston (9.1) which is operated by charging with gas pressure, preferably with compressed air (18), and a pressing element (10) having a pressing-element profile (10.3), wherein the piston (9.1), when it is charged with gas pressure on one side, brings the blank mould base pressing system (9) into a pressing position in relation to a glass gob (1) which is in a blank mould (2) and is to be moulded and, on contact of the pressing-element profile (10.3) with the glass gob (1), forms a base for the glass container to be produced, wherein the blank mould base pressing system (9) has a means for controlling or regulating the stroke of the piston (9.1), wherein said stroke of the piston (9.1) serves to compensate for mass fluctuations of the glass gob (1), and a method for producing a parison (1.1) by means of the aforementioned blank mould base pressing system (9), wherein the blank mould base pressing system (9) has an internal cooling device for cooling by means of a cooling medium, and a method for producing a parison (1.1) by means of the blank mould base pressing system (9) according to the invention.

A method for producing a glass container by: a) providing a forming vessel, and b) providing a forming die comprising an outer surface, c) placing the forming die in the forming vessel, in a forming position, in which a receiving space is defined between the inner surface of the forming vessel and the outer surface of the forming die, a deformable glass gob extending partially into the receiving space, d) cooling the deformed glass gob while keeping the glass gob in the forming position in the forming vessel and the forming die, and then e) retracting the forming die.

A method for producing a glass container by: a) providing a forming vessel, and b) providing a forming die comprising an outer surface, c) placing the forming die in the forming vessel, in a forming position, in which a receiving space is defined between the inner surface of the forming vessel and the outer surface of the forming die, a deformable glass gob extending partially into the receiving space, d) cooling the deformed glass gob while keeping the glass gob in the forming position in the forming vessel and the forming die, and then e) retracting the forming die.

The present disclosure is directed to methods and techniques for gob-pressing a glass part of challenging geometries, such as large surfaces with thin thickness as well as features positioned far from a centroid of the part.

The present disclosure is directed to methods and techniques for gob-pressing a glass part of challenging geometries, such as large surfaces with thin thickness as well as features positioned far from a centroid of the part.

An apparatus for forming 3D glass for a smart phone, including a lower mold set including a first lower mold 52A and a first upper mold 50A having a cavity in which curved glass is formed between the first lower mold and the first upper mold when the first lower mold and the first upper mold are coupled, an upper mold set including a second lower mold 52B and a second upper mold 50B having a cavity in which curved glass is formed between the second lower mold and the second upper mold when the second lower mold and the second upper mold are coupled, and a plurality of support pins 60 supporting the upper mold set in the state in which the upper mold set has been spaced apart from the lower mold set at a specific interval.

An apparatus for forming 3D glass for a smart phone, including a lower mold set including a first lower mold 52A and a first upper mold 50A having a cavity in which curved glass is formed between the first lower mold and the first upper mold when the first lower mold and the first upper mold are coupled, an upper mold set including a second lower mold 52B and a second upper mold 50B having a cavity in which curved glass is formed between the second lower mold and the second upper mold when the second lower mold and the second upper mold are coupled, and a plurality of support pins 60 supporting the upper mold set in the state in which the upper mold set has been spaced apart from the lower mold set at a specific interval.

There are provided a glass container that includes mouth portions formed at both end portions thereof facing each other and a manufacturing method of the glass container. Since the glass container is integrally molded by a one-press manufacturing method, the glass container may be more easily manufactured and the mechanical strength of the glass container may be improved in comparison with a case in which portions including mouth portions are separately manufactured and then are integrated with each other. Further, since the glass container is obtained by a one-press manufacturing method, the glass container is thick and has a high-class feeling. A glass container, which is integrally molded by a one-press manufacturing method, includes a first mouth portion and a second mouth portion that are formed at both end portions of the glass container facing each other.

There are provided a glass container that includes mouth portions formed at both end portions thereof facing each other and a manufacturing method of the glass container. Since the glass container is integrally molded by a one-press manufacturing method, the glass container may be more easily manufactured and the mechanical strength of the glass container may be improved in comparison with a case in which portions including mouth portions are separately manufactured and then are integrated with each other. Further, since the glass container is obtained by a one-press manufacturing method, the glass container is thick and has a high-class feeling. A glass container, which is integrally molded by a one-press manufacturing method, includes a first mouth portion and a second mouth portion that are formed at both end portions of the glass container facing each other.

Process for moulding and producing hollow glass, in particular a glass cap (A) with a hollow area (A) and a ring-shaped protuberance (A), comprising the following steps: providing a moulding apparatus (10) comprising: a preparatory mould (11), lower, composed of two parts or halves (11a, 11b) which can be separated from each other, having a moulding surface (11), and a cavity (11), formed along this moulding surface, corresponding respectively to an external shape (A.sup.Iv) and a shaped protuberance (A) of a hollow glass article (A) to be moulded and produced; a forming member (12), made up of two parts (12a, 12b) which can be separated 0 from each other, which surmounts and engages the lower preparatory mould (11); a pressing member (13) or plunger, upper; anda finishing mould (14); closing (f2) the upper pressing member (13) against the lower preparatory mould (11) with the interposition of a drop of glass (V), in the molten state, so as to form, with the surface moulding element (11) of the preparatory mould (11) and with the respective cavity (11), the external shape (AIv) and the protuberance (A, A), and, with the pressing member (13) the hollow area (A) of the hollow glass article; lifting and extracting (f3) the upper pressing member (13); opening (f4) the two parts (12a, 12b) of the forming member (12), so as to 0 disengage it from the preparatory mould (11) which holds the hollow glass article (A), thus formed; turning (f5) the hollow glass article (A) upside down, holding it and moving it in free air with the preparatory mould (11), and transferring it (f5) to the finishing mould (14); opening the two parts (11a, 11b) of the preparatory mould (11), in order to free the hollow glass article (A); andextracting and removing (f7) the hollow glass article (A), after it has cooled, from the finishing mould (14). The process advantageously allows to produce an article (A) of hollow glass without 0 resorting to the blow moulding technology, as in the conventional processes of the blow-blow and press-blow type.