CN218969093U

CN218969093U - 3D glass forming die

Info

Publication number: CN218969093U
Application number: CN202223445777.8U
Authority: CN
Inventors: 陶兵兵; 王伟; 王寅; 李伟韶; 张志华
Original assignee: Wuhu Token Sciences Co Ltd
Current assignee: Wuhu Token Sciences Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-05
Anticipated expiration: 2032-12-22

Abstract

The utility model belongs to a 3D glass forming die in the technical field of 3D glass manufacturing. Including lower mould (1), go up mould (2), lower mould (1) upper surface sets up concave lower mould die cavity (3), goes up mould (2) lower surface and sets up convex last mould core (4), and lower mould (1) upper surface sets up concave support die cavity (5), goes up mould (2) lower surface and sets up convex support core (6), and lower mould (1) each side limit sets up concave guide table (7) respectively, goes up mould (2) each side limit and sets up protruding guide block (8) down respectively. The 3D glass forming die is simple in structure, and through the arrangement of the supporting structure, damage of the upper die to the product plate glass is reduced when the upper die and the lower die are clamped, and the glass forming yield is increased.

Description

3D glass forming die

Technical Field

The utility model belongs to the technical field of 3D glass manufacturing, and particularly relates to a 3D glass forming die.

Background

In recent years, the development of the automobile industry is rapid, a single glass cover plate cannot meet the development of the automobile industry, and the application of the hot-bending glass with complicated modeling to automobiles is more and more. The conventional technology for hot bending glass is to firstly mold the glass at normal temperature and then heat the mold, and the glass reaches a softening point along with the rise of temperature, so that the surfaces of the upper mold and the lower mold are bonded and molded, on one hand, the upper mold and the lower mold are required to be matched for use, the requirements on the weight of the upper mold and the operation level of the technology are high, and on the other hand, the mold structure is not suitable for a special-shaped glass cover plate with complex modeling and large curved surface fall. In the current production process, when manufacturing a special-shaped glass cover plate with complex modeling and large curved surface fall, the defects of cracking, edge breakage and the like of the product flat glass which is not subjected to mold closing processing in the mold cavity are required to be ensured in the mold closing process. The process has high operation difficulty and high requirement on equipment precision, is applicable to the limitation of the types of glass cover plates, and is unfavorable for market competition. And in the prior art, the glass can be damaged after the die is closed.

The technology known as a 3D glass forming die and a 3D glass forming system in the prior art and disclosed as a publication number of 112079555B comprises the following steps: an upper die device and a lower die device; the upper die device is provided with a convex core, the lower die device is provided with an inward concave cavity, the core and the cavity are used for being matched to form a containing space for containing formed glass, the lower die device is also provided with an air extraction groove, and the air extraction groove is positioned below the cavity and connected with the vacuum generating device. However, this technology does not relate to the technical problems and technical solutions of the present application.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the 3D glass forming die is simple in structure, and is arranged through a supporting structure, so that when an upper die and a lower die are clamped, the breakage of the upper die to the product plate glass is reduced, and the glass forming yield is increased.

The technical scheme adopted by the utility model is as follows:

the utility model relates to a 3D glass forming die which comprises a lower die and an upper die, wherein a concave lower die cavity is formed in the upper surface of the lower die, a convex upper die core is arranged in the lower surface of the upper die, a concave supporting cavity is formed in the upper surface of the lower die, a convex supporting core is arranged in the lower surface of the upper die, concave guide tables are respectively arranged on the side edges of each side of the lower die, and a convex guide block is respectively arranged on the side edge of each side of the upper die.

The 3D glass forming die further comprises a support, and the support is a glass sheet.

The concave shape of the lower die cavity is the same as the convex shape of the upper die core.

The number and the positions of the supporting cavities and the supporting cores are in one-to-one correspondence.

The support is arranged to be capable of being clamped in the support cavity.

The upper die is movably clamped on a guide table of the lower die through guide blocks at two sides, and each supporting core is positioned right above one supporting cavity.

The cross section of the lower die cavity is semicircular, U-shaped, V-shaped or trapezoid.

The cross section of the upper die core is semicircular, U-shaped, V-shaped or trapezoid.

And each side corner of the lower die cavity is provided with a glass bearing limit step respectively.

By adopting the technical scheme of the utility model, the working principle and the beneficial effects are as follows:

according to the 3D glass forming die disclosed by the utility model, a hot bending die is adopted, a support is placed in a support cavity of a lower die before the temperature of the hot bending die rises in the 3D glass forming process, product flat glass to be subjected to hot bending forming is placed in the lower die cavity, the upper die core acts on the product flat glass before the upper die and the lower die are assembled, meanwhile, the support core of the upper die also acts on the support in the support cavity, and the support core also acts on the support, so that the support core and the support core are matched, the upper die can bear the pressure of the upper die on the product glass, and the crushing of the flat product glass due to the force of the upper die core is avoided. In the mold closing process, the supporting mold core acts on a supporting object in the supporting mold core, so that the pressure of the upper mold to the product glass can be shared, the upper mold moves downwards according to a certain formation and is close to the lower mold, the glass is heated to reach the softening point of the glass along with the heating of the heating mold, and then the upper mold and the lower mold are completely closed, so that the molded surface is completely attached to the glass, and the 3D glass is subjected to hot bending molding.

Drawings

The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:

FIG. 1 is a schematic cross-sectional view of a 3D glass forming mold according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a 3D glass forming mold according to the present utility model before mold clamping;

FIG. 3 is a schematic cross-sectional view of the 3D glass forming mold according to the present utility model, wherein the lower mold cavity and the upper mold core are both semicircular;

FIG. 4 is a schematic cross-sectional view of the 3D glass forming mold according to the present utility model, wherein the lower mold cavity and the upper mold core are both V-shaped;

the reference numerals in the figures are respectively: 1. a lower die; 2. an upper die; 3. a lower mold cavity; 4. an upper mold core; 5. supporting the cavity; 6. supporting the core; 7. a guide table; 8. a guide block; 9. a support; 10. glass bearing limit steps; 11. planar finished glass.

Detailed Description

The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present utility model by describing examples in further detail:

as shown in fig. 1 and fig. 2, the utility model relates to a 3D glass forming mold, which comprises a lower mold 1 and an upper mold 2, wherein a concave lower mold cavity 3 is arranged on the upper surface of the lower mold 1, a convex upper mold core 4 is arranged on the lower surface of the upper mold 2, a concave supporting mold cavity 5 is arranged on the upper surface of the lower mold 1, a convex supporting mold core 6 is arranged on the lower surface of the upper mold 2, concave guide tables 7 are respectively arranged on each side edge of the lower mold 1, and convex guide blocks 8 are respectively arranged on each side edge of the upper mold 2. The structure provides an improved technical scheme aiming at the defects in the prior art. In the 3D glass forming process, before the hot bending die heats up, a supporting object is placed in a supporting cavity of a lower die, product flat glass needing hot bending forming is placed in the lower die cavity, before an upper die and a lower die are assembled, an upper die core acts on and applies force on the product flat glass, meanwhile, a supporting core of the upper die also acts on the supporting object in the supporting cavity, and the supporting core also acts on and applies force on the supporting object, so that the supporting core and the supporting core are matched, the upper die can bear the pressure of the upper die on the product glass, and the crushing of the flat product glass due to the force of the upper die core is avoided. In the mold closing process, the supporting mold core acts on a supporting object in the supporting mold core, so that the pressure of the upper mold to the product glass can be shared, the upper mold moves downwards according to a certain formation and is close to the lower mold, the glass is heated to reach the softening point of the glass along with the heating of the heating mold, and then the upper mold and the lower mold are completely closed, so that the molded surface is completely attached to the glass, and the 3D glass is subjected to hot bending molding. According to the structure, the supporting structure is formed by the supporting cavity and the supporting core, the die closing stroke of the upper die and the lower die can be controlled in the die closing process, and the product planar glass is prevented from being broken when the upper die and the lower die are closed, so that the planar glass is ensured to be completely molded into 3D glass in the hot bending die. The 3D glass forming die is simple in structure, and through the arrangement of the supporting structure, damage of the upper die to the product plate glass is reduced when the upper die and the lower die are clamped, and the glass forming yield is increased.

The 3D glass forming die further comprises a support 9, and the support 9 is a glass sheet. According to the structure, before hot bending, the support is placed in the support cavity of the lower die, the support is located at the upper portion of the support cavity, and when the upper die and the lower die are assembled, the support core can act on the support and receive certain pressure, so that the pressure of the upper die to the product glass can be shared.

The concave shape of the lower mold cavity 3 is the same as the convex shape of the upper mold core 4. In the above structure, when the lower mold cavity 3 and the upper mold core 4 are closed, the product plate glass is forced, so that the product plate glass is processed into a 3D shape consistent with the lower mold cavity and the lower mold core.

The number and the positions of the supporting cavities 5 and the supporting cores 6 are in one-to-one correspondence. According to the structure, the supporting cores are distributed on the lower surface of the upper die, the supporting cavities are distributed on the upper surface of the lower die, the positions of the supporting cavities correspond to each other one by one, when the upper die and the lower die are clamped, each supporting core acts on a corresponding supporting object in the supporting cavity, and force is applied to the supporting object in the clamping process, so that pressure is shared.

The support 2 is configured to be capable of being clamped in the support cavity 5. With the structure, when the supporting core is not applied with force, the supporting object can not fall down, and can be deformed and moved downwards only after the application of force.

The upper die 2 is movably clamped on a guide table 7 of the lower die 1 through guide blocks 8 at two sides, and each support core 6 is positioned right above one support cavity 5. According to the structure, the guide table is matched with the guide block, the upper and lower positions of the upper die and the lower die are controlled, when the upper die moves up and down, the upper die can only vertically move up and down relative to the lower die, deviation cannot occur, and molding quality is guaranteed.

The cross section of the lower die cavity 3 is semicircular, U-shaped, V-shaped or trapezoid. The section of the upper model core 4 is semicircular, U-shaped, V-shaped or trapezoid. The upper mold core and the lower mold cavity have the same shape, can be in various shapes, and can be suitable for forming and processing of glass with different shapes. The whole die is simple in structure and reliable in performance.

And each side corner of the lower model cavity 3 is provided with a glass bearing limit step 10 respectively. According to the structure, before die assembly, the planar product glass is placed on the glass bearing limit step 10, so that initial placement and positioning of the planar product glass are effectively realized, and the later-stage forming quality is ensured.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the utility model is not limited by the foregoing, but rather is within the scope of the utility model as long as various modifications are made by the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without modification.

Claims

1. The utility model provides a 3D glass forming die which characterized in that: including lower mould (1), go up mould (2), lower mould (1) upper surface sets up concave lower mould die cavity (3), goes up mould (2) lower surface and sets up convex last mould core (4), and lower mould (1) upper surface sets up concave support die cavity (5), goes up mould (2) lower surface and sets up convex support core (6), and lower mould (1) each side limit sets up concave guide table (7) respectively, goes up mould (2) each side limit and sets up protruding guide block (8) down respectively.

2. The 3D glass forming mold according to claim 1, wherein: the 3D glass forming die further comprises a support (9), and the support (9) is a glass sheet.

3. The 3D glass forming mold according to claim 1 or 2, wherein: the concave shape of the lower model cavity (3) is the same as the convex shape of the upper model core (4).

4. The 3D glass forming mold according to claim 1 or 2, wherein: the number and the positions of the supporting cavities (5) and the supporting cores (6) are in one-to-one correspondence.

5. The 3D glass forming mold according to claim 2, wherein: the support (9) is arranged in a structure capable of being clamped in the support cavity (5).

6. The 3D glass forming mold according to claim 1 or 2, wherein: the upper die (2) is movably clamped on a guide table (7) of the lower die (1) through guide blocks (8) at two sides, and each supporting core (6) is positioned right above one supporting cavity (5).

7. The 3D glass forming mold according to claim 1 or 2, wherein: the cross section of the lower model cavity (3) is semicircular or U-shaped or V-shaped or trapezoid.

8. The 3D glass forming mold according to claim 7, wherein: the section of the upper die core (4) is semicircular, U-shaped, V-shaped or trapezoid.

9. The 3D glass forming mold according to claim 1 or 2, wherein: glass bearing limit steps (10) are respectively arranged at each side corner of the lower model cavity (3).