RU2575949C2 - Die mould with monolith matrix to form glass item, such as salad dish or similar dish with through hole, appropriate production equipment, and appropriate forming process - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: die mould (10) to form the glass items with through hole contains three elements: a matrix (11) determining external shape of the formed glass container; die (12) determining internal shape of the formed glass container; covering ring (13). One of the said covering ring (13) and said monolith matrix (11) has projecting part (13a′) determining shape of the through hole.

EFFECT: increased quality of the shaped items with holes due to exclusion of defects on the glass surface.

12 cl, 9 dwg

Description

Field of Invention

The present invention relates essentially to the field of manufacture and molding of glassware and, more particularly, relates to a new molding station or mold for molding glass products, i.e. containers or salad bowls, whose shape has at least one through hole formed through the wall thickness of the product or container.

The present invention also relates to appropriate manufacturing equipment and to a corresponding process for the manufacture and molding of glass products, typically containers, such as salad bowls or the like, which have at least one through hole formed in their walls.

BACKGROUND OF THE INVENTION AND PRIOR ART

In the field of manufacturing and molding glass products and products, a molding station is known for using special molds consisting of numerous elements that are adapted to accommodate a portion of glass in a plastic or molten state to form a product.

In particular, a portion of glass is placed on a mold element, known as a matrix, which usually forms the outer shape of the molded product or glass container.

The mold also contains a second element, known as a punch, which forms the internal shape of the molded product or glass container, and during molding such a second element or punch is lowered onto a matrix containing a portion of glass, which leads to its spread in the gap formed by the matrix and punch.

Also, the mold may contain one or more additional elements, which are made with the possibility of lowering one on top of the other in combination with a die and a punch to close and completely seal the mold so that the internal cavity of the mold takes a shape that exactly matches the shape molded glass products.

Therefore, when the mold is closed, the portion of glass that was originally placed in the die is pressed and it is distributed until the mold cavity is completely filled and the product is formed.

Of course, the shape and relative position of the various mold elements will vary in accordance with the specific configuration and appearance of the molded glass product.

In short, these mold elements are designed and adjusted to lower one onto the other, as mentioned above, to close the mold and form the product, and then separate one from the other to allow the molded glass product to be removed from the mold.

The matrix that forms the outer shape of the molded glass product typically consists of two conjugated elements that come close to each other to form the internal cavity of the mold and are separated from each other after forming the glass product to ensure the extraction of the glass product.

For clarity, FIG. 9 schematically shows the structure and basic elements of a typical conventional mold, designated ST, which is used in the molding station SS to mold the glass AV product, for example, a container such as a salad bowl or the like.

In particular, such a conventional ST mold essentially consists of a plurality of distinct and mutually separate elements designated P1, P2, P3, P4.

In more detail, the elements P1 and P2 constitute the mold matrix ST, also designated as MAT, and define the concave surface SUP ′ when they are close to each other, which corresponds and forms the outer shape of the molded glass article AV.

The element P3, i.e., the punch, in turn, forms a convex surface SUP ′ ′, which corresponds to and forms the inner shape of the glass product AV to form a gap with the concave surface SUP ′ of the MAT matrix when the punch P3 is lowered onto it, said gap corresponding to the wall formable product AV and sets its thickness.

Ultimately, the element P4 has an essentially annular shape and is configured to close with the MAT matrix to laterally close the gap between the punch, that is, the P3 element, and the MAT matrix of the mold ST, and the formation of the inner cavity of the mold ST along with other elements.

When the glass article AV is molded using this conventional mold ST, the two elements P1 and P2 are brought close together to form a MAT matrix, as shown by the arrows f.

Then, as shown in section (a) in FIG. 9, a portion V of glass in a plastic or molten state is placed in a MAT matrix formed by elements P1 and P2.

Then, the upper element P3, i.e. the punch, is lowered together with the annular element P4 onto the MAT matrix formed by the elements P1 and P2, as shown by the arrows f ′ and in section (b) in Fig. 9, to compress the glass drop V and cause its deformation and spreading in the gap between the MAT die and the punch P3 to fill the entire internal cavity of the mold ST, thereby forming the glass article AV.

Ultimately, the mold elements ST are moved apart from each other, as shown by the arrows f ′ ′ and in section (c) in FIG. 9, to remove the glass article AV from the mold ST.

Also in the field of manufacturing and forming glass products, there is a need to increase the possibility of manufacturing and manufacturing glass products with a configuration characterized by one or more through holes formed through their walls.

This need was generally satisfied in the prior art by designing and manufacturing special molds whose elements are formed and suitably controlled to form such holes during molding and the formation of glass products.

However, the molds and molding equipment that are currently known in the prior art for molding glass products having one or more through holes have a very complex structure.

Moreover, such molds of the prior art usually contain matrices consisting of two or more mutually separated elements, which includes a rather complicated technological operation, especially for separating such elements, with an adverse effect on the manufacture of the mold, and the formation of costs, as well as the final cost of the finished glass product with a through hole.

Mold options for glass products, such as containers or glassware, are also known that have through holes formed through their walls, in which a hole is formed during molding by moving the element into the gap between the die and the punch.

In particular, during molding of the product, such an element is positioned so that it passes through the gap between the die and the die of the mold to form a gap region corresponding to the through hole formed in the product, which is not placed or which is not filled with molten glass.

Then, after curing the glass, such an element is removed from the gap to release the hole and to ensure the separation of both the die and the punch, and to remove the glass product with a through hole from the mold.

However, such a solution is also complex both in terms of design and operation, and still has drawbacks.

SUMMARY OF THE INVENTION

Therefore, the main objective of the present invention is to develop a new and inventive mold for the manufacture and molding of glass products, typically containers, such as salad bowls, trays or the like, having at least one opening formed in the thickness of their walls moreover, this new mold is associated with tangible improvements or advantages over the known previous molds and, in particular, is simpler both in design and in operation, providing We have the lowest molding costs and improved results in terms of the quality of the final glass product configured with a hole.

Moreover, the second objective of the invention, still associated with the first, is to expand the scope and capabilities of molding glass products and products having through holes in their walls, that is, expanding the scope and variety of shapes and configurations in which such products and products with holes can be formed.

The third objective of the present invention is both the development of production equipment, and the definition of the molding process, allowing the molding of glass products with through holes or empty areas in their walls at lower cost and with excellent quality.

In conclusion, the fourth objective of the present invention may be to promote the marketing of glass products and products having a characteristic shape with a hole, due to lower costs and excellent quality of the final product.

These goals are achieved through a new mold for molding and manufacturing glass products configured with an aperture in their walls, and a corresponding molding process having the features defined in paragraphs 1 and 8 of the claims, respectively.

Particular cases of embodiments of a new mold for forming glass products with a hole and the corresponding molding process are defined in the dependent claims.

Advantages of the Invention

The following, by way of example, lists a number of advantages, partially implicitly mentioned earlier, that are associated with the new mold of the present invention, designed to form and form glass products having one or more through holes in their walls:

- higher quality molded glass products with areas of through holes completely free from defects, such as seams, which are often present in conventional molded products with a hole;

- reduced operating costs and, as a result, reduced costs for forming glass products with a hole;

- great flexibility with the possibility of the formation of a variety of external forms of glass products and containers having areas with a hole in their walls.

Brief Description of the Drawings

These and other objects, features and advantages of the present invention will be apparent from the following description of a preferred embodiment, which is given by way of non-limiting example with reference to the accompanying drawings, in which:

Figure 1 is a schematic bit-wise cross-sectional view of the essential elements of the mold of the present invention for molding a product in the form of a glass container, such as a salad bowl or the like, having a typical shape with a through hole;

2A and 2B are schematic top views of a monolithic matrix and a closing ring for closing the mold of FIG. 1, respectively;

FIG. 3 is divided into sections (a), (b), (c) and shows schematic diagrams of the steps of forming a glass container, such as a salad container or bowl, whose shape has a through hole, using the mold of FIG. 1 in accordance with the present invention;

4 is a perspective, three-dimensional and more detailed image of the mold of the present invention for forming a glass product, whose shape has at least one through hole;

FIGS. 5A and 5B are respectively a plan view in which some elements are omitted and a longitudinal section along the line V-B to V-B in FIG. 5A of the mold of the present invention shown in FIG. 4;

FIG. 5B ′ is an enlarged view of the area shown by a dotted line with dots in a circle in FIG. 5B;

6A and 6B are two diagrams showing molding equipment including a mold of the present invention for molding a glass product having at least one through hole;

Figa-7H are perspective and orthogonal images of glass products with a hole, molded by means of a mold with a monolithic matrix, and equipment of the present invention, shown from different points of view;

8A and 8B are schematic diagrams of certain embodiments of the elements that form the mold of the present invention; and

Fig. 9 is a schematic diagram of the steps of forming a conventional glass container by means of a conventional mold divided into parts (a), (b), (c).

Description of a preferred embodiment of the inventive mold for forming glass products having at least one through hole

In the drawings, one mold of the present invention for molding and forming glass products, typically containers, such as salad bowls, trays, multi-purpose bowls and the like, or things having a shape and configuration having at least one through hole formed through the wall thickness of the product is generally designated 10.

1, 2A, 2B and 3 are schematic views of the mold 10 of the present invention, showing its basic and essential design principles.

Namely, the mold 10 contains three distinct individual elements that are movable relative to each other, which is more clear from the description and use of the mold 10, in which these three separate elements respectively consist of:

- a matrix 11, also called a female member having a surface S1 that forms the outer shape of the molded glass product or container designated A,

- a punch 12, also called a male element having a surface S2, which forms the outer shape of the molded glass product or container designated A,

- closing ring 13,

moreover, these three elements 11, 12, 13 are made with the possibility of closing one with the other in the closed configuration of the mold 10, in which the three elements 11, 12, 13 form the inner cavity of the mold 10 and, therefore, the overall shape of the molded glass product A which is configured with a hole.

In particular, the closure ring 13 has an inner hole 13 ′ that forms an inner surface adapted to conform and interact with the corresponding outer surface 12 ′ formed by the punch 12, i.e. preventing leakage of the glass material into the mold 10 when the configuration is closed which is better explained below.

In accordance with the first main distinguishing feature of the present invention, the matrix 11 of the mold 10 has a monolithic structure, that is, consists of one element.

Also, in accordance with the second main distinguishing feature of the present invention, at least one of the two elements, either the closure ring 13 or the monolithic matrix 11, has a protruding portion corresponding to and forming the shape of a through hole formed and formed in the glass container A.

For simplicity, the schematic diagrams in FIGS. 1, 2A, 2B and 3 show only the protruding portion, designated 13a, formed on the lower surface of the closure ring 13.

However, it should be understood that in accordance with the first embodiment shown in FIG. 8A, an identical protruding portion 11b can also be formed on the upper surface 11a of the monolithic matrix 11 individually or in combination with part 13a.

Also, in accordance with a further embodiment, as shown in FIG. 8B, the protruding part of one of the two elements 13 and 11, for example the protruding part 13a of the closure ring 13, can be adapted to interact with the corresponding recess 11c formed in the other element, then is in the monolithic matrix 11, instead of interacting with the protruding part or the outer surface of the latter, to form a through hole of the molded product.

Moreover, at least either the closure ring 13 or the monolithic matrix 11 has a protruding outer edge that has a sealing effect to prevent leakage of the flowing glass material during the formation of the glass product A with the hole, as described in more detail below.

Also for simplicity, the schematic diagrams in FIG. 1, 2A, 2B and 3 show only the protruding edge, designated 13b, formed on the lower surface of the closure ring 13, but the identical and / or mating protruding edge can also be formed separately or in combination with the protruding edge 13b on the upper surface of the matrix 11.

Next, in more detail with reference to figure 3 will be described the use and operation of the mold 10 for forming a glass product A having a schematic and general shape with a configuration having a through hole, designated FP, in the walls of the product A.

In particular, the molded article in the form of a container or salad bowl has a main containing body, designated A ′, which forms a convex outer surface S1 ′ corresponding to the surface S1 of the matrix 11; the inner concave surface S2 ′ corresponding to the surface S2 of the punch 12; and an upper flat edge designated A ″ having a thickness SP that projects laterally from the periphery or from the outer edge of the enclosing body A ′ and has a through hole FP extending through its thickness SP.

First, when the mold 10 is in the open configuration indicated by C ′, in which the elements 11, 12 and 13 are separated from each other, as shown in section (a) of FIG. 3, a portion V of molten or plastic or soft glass is placed to the bottom of the inner surface S1 of the matrix 11 in a well-known manner.

After that, as shown by the arrows f1 and f2 and the dotted dotted line, the punch 12 and the closing ring 13 are moved to close with the die 11 to form a closed mold configuration C ″, as shown in section (b) of FIG. 2, in which the closing ring 13 is in contact with the upper surface 11a of the matrix 11.

In particular, the closing ring 13 is lowered first, as shown by the arrows f1, so that its protruding part 13a and its protruding edge 13b are located on the surface 11a of the matrix 11, and then lower the punch 12, as shown by the arrow f2, to compress the portion V of the glass, located at the bottom of the matrix 12.

As a result, lowering the punch 12 causes the glass portion V to extend in the gap between the die 11 and the punch 12 and causes the glass material portion V to fill the inner cavity of the mold 10, designated 10 ′.

Thus, the glass material completely fills the inner cavity 10 ′ of the mold 10 and, in particular, the space around the protruding portion 13a, thereby forming a through hole FP, the protruding edge 13b of the closure ring 13 having a sealing effect and prevents leakage of the glass material, which spreads in the inner cavity 10 ′.

Then, as shown in section (c) in FIG. 3 and with the arrows f3 and f4, after curing for a predetermined time of the glass material that fills the cavity 10 ′ of the mold 10, the punch 12 and the closing ring 13 are removed from the matrix 11, and the mold 10 returns to its open configuration C ′.

In particular, the punch 12 is first lifted from the die 11, as shown by the arrow f3, and then the closing ring 13 is lifted, as shown by the arrows f4.

Now, product A with a through hole FP at its edge A ″ can be removed from the mold 10 in a known manner.

4, 5A and 5B, more precisely and less schematically than in FIGS. 1, 2A, 2B and 3, a mold 10 with a monolithic matrix according to the invention is shown with reference to a predetermined real shape of product A.

In particular, as shown in FIGS. 4 and 5B, the mold 10 extends along its central axis X and contains, in addition to the elements 11, 12 and 13, a base 16 on which the monolithic matrix 11 is fixedly fixed.

In turn, FIG. 5B ′ clearly shows certain features and elements of the mold 10 of the invention in the region in which the through hole FP of the article is formed when the mold 10 is in its closed configuration.

As shown in FIG. 5B ′, the glass article or container A, which is molded by means of the mold 10 in FIGS. 5A and 5B, has a wall in which a through hole FP is formed which is inclined relative to the central axis X of the mold 10.

In the region of the mold 10 corresponding to the formation of this through hole FP, the closure ring 13 has a protruding region or part 13 ′ corresponding to the above part 13a, and the monolithic matrix 11 also has a protruding region or part 11 ′, these two protruding parts 13 ′ and 11 ′ are arranged to be lowered onto each other along the contact surface 15 when the mold 10 is closed to form the article A, as described above.

As clearly shown in FIG. 5B ′, the two protruding parts 13 ′ and 11 ′ and the contact surface 15 that separates the two parts 13 ′ and 11 ′ in the region of the through hole FP, when the mold 10 is closed, are designed accordingly especially taking into account the inclination of the wall of the article A in which this hole FP is formed, relative to the X axis, in order to avoid undercuts and to ensure the corresponding formation of the hole FP when the mold 10 is open, i.e. the closure ring 13 is removed from the matrix 11, as shown by arrow fr.

Moreover, in the region of the through hole FP, while the punch 12 forms an outer surface 12 ′ extending parallel to the X axis of the mold 10 and the punch 12 itself, the inner surface of the hole 13 ′ defined by the closing ring 13 has a certain inclination with respect to such an axis X, thus forming an angle of inclination between the punch 12 and the closing ring 13, denoted by α.

This angle of inclination α is intended to facilitate the connection of the punch 12 and the closing ring 13, while at the same time providing a sealing effect between these elements in the region of the through hole FP to prevent any leakage and release of the glass material during the formation of the article A with the hole.

Obviously, such an angle of inclination α between the punch 12 and the closing ring 13, which is intended, as mentioned above, to facilitate optimal tight connection between the punch 12 and the closing ring 13, especially in the area of the through hole FP, can be obtained by tilting any of these elements 12 and 13, or both, relative to the central axis X of the mold 10.

Therefore, it is understood that the mold 10 and the corresponding molding process fully satisfy these goals and, in particular, provide a simple and relatively inexpensive method for producing a high-quality glass product, usually in the form of a container or salad bowl, having one or more holes along its edges or, essentially, through the thickness of its walls, thereby eliminating the disadvantages of the prior art, which hindered or hindered the implementation of the simple molding of glass products of this type having a shape with one or more holes.

Embodiments of the invention

Of course, in accordance with the principle and basic ideas of the present invention, the embodiments and features of the mold described previously for forming glass products having a configuration with at least one through hole can be substantially changed with respect to the above description and drawings without departing from the scope of the invention.

For example, both the closing ring and the monolithic matrix can have many protruding parts, similar to the parts described above with reference to embodiments of the mold 10, each of the parts corresponding to a hole formed in the thickness of the molded glass product.

In the same way, the shapes of the punch, the closure ring and the monolithic matrix, as well as the shapes of the protruding region and the parts formed on the closure ring and the monolithic matrix and corresponding to the through holes formed in the glass product, can change in accordance with the specific shape of either the molded product or the region products in which through holes should be formed.

Production equipment including a mold of the present invention with a monolithic matrix

In addition to the above, with reference to FIGS. 6A and 6B, manufacturing equipment, generally designated 20, will be described in accordance with an additional aspect of the invention, which comprises and includes the above-described inventive mold 10 for forming glass articles with a hole.

In particular, production equipment 20 comprises:

- a molding station, designated 21, and corresponding to the above-described mold 10 of the present invention with a monolithic matrix, and

- a rotating platform 22 carrying a plurality of monolithic matrices, which are preferably, but not limited to, identical, for example, eight matrices designated 11-1, 11-2, 11-3, ... 11-8, and forming the outer shape of the molded glass product with a hole.

The molding station 21, in turn, contains:

- a punch 12 shared by such a plurality of monolithic dies supported by a rotating platform 22 and forming the internal shape of a molded glass product; and

- a closing ring 13 shared by a plurality of monolithic matrices resting on a rotating platform 22.

During operation, the rotating platform 22 intermittently rotates at a predetermined angle, as shown by the arrow f5, so that each of the matrices 11-1, 11-2, 11-3, ... 11-8, resting on the platform 22, sequentially moved through a series of workers stations, which, in turn, are configured to carry out a technological process on them to obtain the final glass product A.

In particular, during the intermittent rotation of the platform 22, the monolithic matrices are initially moved through a series of stations in the preparation area, designated 23, in which the matrices are suitably formed and prepared to accommodate a portion of the V glass.

Then, when any of the monolithic matrices is transferred by intermittent rotation of the platform 22 to the station, which is located in front of the molding station 21, and stops there, a portion V of molten glass is fed into the monolithic matrix.

Then, by subsequent rotation of the platform 22, the monolithic matrix, for example, the matrix 11-1, as shown in FIGS. 6A and 6B, into which the glass portion V is fed, is moved to the area of the forming station 21, where the monolithic matrix 11-1 is first installed a closing ring 13, and then a punch 12 for closing the mold 10 and accordingly pressing the portion V of the glass and the formation of the glass product A, which has a through hole FP.

Then, by subsequent rotation of the platform 22, the article A with the hole is moved from the molding station 21 to the subsequent station.

At the same time, the monolithic matrix 11-8, which follows the matrix 11-1 on the platform 22 and contains a portion V of glass, is moved to the molding station 21 instead of the matrix 11-1, to accommodate the closing ring 13 and the punch 12 and, thus, the formation of another glass product A with a hole.

This cycle is repeated at each angular rotation of the platform 22.

After molding the articles A in the molding station 21, they are moved by intermittent rotation of the platform 22 through a plurality of stations located in the cooling region designated 24, and, finally, transferred to the extraction station 25, where the finished products A are removed from their respective matrices and platforms 22, as shown by arrow f10.

For completeness of understanding, FIGS. 7A-7B show various glass articles A1 and A2 with their respective holes, designated A1 ′ and A2 ′, formed by means of a monolithic mold 10 with a monolithic matrix and equipment 20 of the invention from various positions.

It should be understood that the products may have one or more holes in their walls, in particular along their upper edge.

In addition, to confirm that the mold of the invention is designed to mold glass products with any number of holes, FIGS. 7G and 7H show a front view and a sectional view of an article A3 in the form of a container that has a plurality of holes A3 ′ formed and disposed along the entire length of its upper edge.

Claims (12)

1. A mold (10) for forming glass products (A, A1, A2, A3), in particular containers, such as a container for salads, bowls and the like, which have a through hole, that is, have a shape of at least one through hole or channel (FP, A1 ′, A2 ′, A3 ′) formed in the wall or thickness of the glass product, containing:
three different and made with the possibility of separation of the element (11, 12, 13):
- a matrix (11) that defines the outer shape of the molded glass container,
a punch (12) defining the internal shape of the molded glass container, and
- closing ring (13),
moreover, said matrix (11) is configured to place a portion (V) of glass in it in a plastic or molten state, and said three elements (11, 12, 13) are designed to be pressed against one another to close the mold (10) and therefore, compressing the portion (V) of the molten glass and distributing it in the cavity (10 ′) of the mold, and is configured to mold and form a glass product or container (A),
moreover, the aforementioned matrix (11) has a monolithic structure consisting of one element, and
at least one of said closure ring (13) and said monolithic matrix (11) has a protruding portion (13a, 13 ′, 11 ′) defining the shape of the through hole (FT) formed and formed in the glass container (A). 2. The mold (10) according to claim 1, in which both said closing ring (13) and said monolithic matrix (11) have corresponding protruding parts (13 ′, 11 ′), which are made with the possibility of lowering one onto another to form a through hole (FP) shape of the molded product. 3. The mold (10) according to claim 2, configured to form a glass product (A) having a wall with a through hole (FP) formed therein, which is inclined relative to the central axis (X) of the mold, the protruding parts (13 ′, 11 ′) on said closure ring (13) and on said monolithic matrix (11) are designed with the possibility of eliminating undercuts and ensuring proper removal from the mold with a through hole (FP) after opening the mold. 4. The mold (10) according to claim 1, in which at least one of the said closing ring (13) and said monolithic matrix (11) has a protruding outer edge (13b) for sealing the flowing glass material in the mold, when the mold is closed. 5. The mold (10) according to claim 1, in which in the closed mold the closing ring (13) is lowered onto the monolithic matrix (11) before the punch (12) and in the open mold the punch (12) is moved from the monolithic matrices (11) before the closing ring (13). 6. The mold (10) according to claim 1, wherein said punch (12) and said closing ring (13) form an angle of inclination (α) between the outer surface (12 ′) of said punch (12) and the inner surface (13 ′) Openings formed by said closure ring (13) to provide a connection between said punch (12) and said closure ring (13), in particular in the region of said through hole (FP) in a closed mold configuration. 7. The mold according to claim 1, in which at least one of said closing ring and said monolithic matrix has a plurality of protruding parts that define the shape of a corresponding plurality of through holes (A3 ′) that are molded and formed in a glass product (A3) . 8. A method of forming glass products (A) having a shape with at least one through hole (FP), according to which:
- perform the mold (10), consisting of various and made with the possibility of separation of the elements (11, 12, 13):
- from a monolithic matrix (11), a punch (12) and a closing ring (13), at least one of the closing ring (13) and a monolithic matrix (11) has a protruding part (13a, 13 ′, 11 ′), which determines the shape of the through hole (FP) of the molded glass product (A);
- place a portion (V) of molten glass in a monolithic matrix (11) of the mold (10);
- lower the punch (12) and the closing ring (13) with its protruding part (13a, 13 ′, 11 ′) onto the monolithic matrix (11) to close the mold, as a result of which, after closing the mold, the portion (V) of the molten glass extends into the cavity (10 ′) of the mold formed by a monolithic matrix, a punch and a closing ring to form a product (A) with a through hole (FP). 9. Production equipment (20) for forming glass products (A), in particular containers, such as salad containers, bowls or the like, which have through holes, that is, have a shape with at least one through hole or channel (FP ) formed in the walls or thickness of the glass product, containing:
- molding station (21) corresponding to the mold (10) according to claim 1, and
- a rotating platform (22) carrying a plurality of monolithic matrices (11-1, 11-2, 11-3), which are, in particular, identical, which form the outer shape of the molded glass product (A) with an opening,
wherein said molding station (21), in turn, contains:
- a punch (12) shared by the aforementioned set of monolithic matrices (11-1, 11-2, 11-3), which are supported on the said rotating platform (22), and forming the internal shape of the molded glass product, and
- a closing ring (13) shared by said plurality of monolithic matrices supported on said rotating platform (22), said rotating platform (22) being intermittently rotated for sequentially moving matrices supported on the same platform in the region of said molding stations (21),
moreover, when each of the aforementioned monolithic matrices (11-1, 11-2, 11-3), supported by a rotating platform (22), is moved to the region of the said molding station (21), the closing ring (13) and the punch (12) the forming station (21) is lowered onto the monolithic die (11-1) to press and distribute a portion (V) of molten glass previously placed in the monolithic matrix, and, therefore, to form and form the glass product (A). 10. A glass article (A) having a configuration with at least one through hole (FP) formed in the thickness of its walls, said glass article being formed by means of a mold (10) according to claim 1. 11. A glass article (A) having a configuration with at least one through hole (FP) formed in the thickness of its walls, said glass article being formed by the molding process of claim 8. 12. A glass article (A) having a configuration with at least one through hole (FP) formed in the thickness of its walls, said glass article being formed by the equipment of claim 9.

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