CN213172027U

CN213172027U - Glass lens forming die with equal-diameter ring

Info

Publication number: CN213172027U
Application number: CN202021697269.7U
Authority: CN
Inventors: 黄亮; 熊波
Original assignee: Dongguan Harmony Optical Technology Co ltd
Current assignee: Dongguan Harmony Optical Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-05-11
Anticipated expiration: 2030-08-14

Abstract

A glass lens forming mold with an isometric ring, comprising: well meat section of thick bamboo (1), jacket (2), go up mould benevolence (3), lower mould benevolence (4) and type ring (5), well meat section of thick bamboo (1) and jacket (2) all are well logical body, jacket (2) are arranged in holding passageway (11) of well meat section of thick bamboo (1), go up mould benevolence (3) and have last shaping post (31), lower mould benevolence (4) have lower shaping post (41), go up shaping post (31), lower shaping post (41) and type ring (5) all are arranged in shaping passageway (21) of jacket (2), the diameter of going up shaping post (31), the diameter of lower shaping post (41) and the external diameter of type ring (5) all equal to the internal diameter of shaping passageway (21). The lower mold core of the glass lens forming mold is not required to be provided with the positioning step, so that the manufacturing cost of the glass lens is reduced, and the core taking process is not required after the glass lens is formed, so that the manufacturing efficiency is greatly improved.

Description

Glass lens forming die with equal-diameter ring

Technical Field

The utility model relates to a glass lens forming die especially relates to a glass lens forming die with constant diameter type ring.

Background

The glass lens press-casting method is a method in which a glass material is heated and softened, and then pressed by a molding die having a high-precision surface to form a spherical or aspherical shape.

Chinese utility model patent CN209466731U discloses a hot pressing assembly mould of pipe cap, including last mould, sleeve and lower mould, go up the mold core and set up in telescopic cavity with the lower mold core from upper and lower both ends activity respectively, the lateral wall of lower mold core is equipped with and is used for with the inconsistent location step of terminal surface under the metal casing, the lower mold core that is located location step top and metal casing's lower extreme cavity phase-match, go up the mold core be equipped with metal casing's upper end cavity assorted lower tip. The hot press fitting mold has a metal housing as a swage ring, and a lens is molded in the swage ring to define an outer diameter of the lens.

However, the positioning step needs to be arranged on the lower mold core of the hot press assembly mold to be abutted against the mold ring, and for the forming mold of the glass lens, the mold core is generally made of tungsten steel material and is difficult to process, and in the process of forming the positioning step, the dimensional accuracy is difficult to ensure, so that the position accuracy of the mold ring is affected, the central position of the lens is deviated, a core taking process is needed after the lens is formed, and the manufacturing time and the manufacturing cost of the glass lens are increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, and in order to solve above-mentioned problem and provide a glass lens forming die with constant diameter type ring, forming die includes: well meat section of thick bamboo, jacket, go up mould benevolence, lower mould benevolence and type ring, well meat section of thick bamboo with the jacket all is well entire body, well meat section of thick bamboo has the passageway of holding, the jacket has the shaping passageway, the shaping passageway is cylindrical, the jacket is located hold in the passageway, it has last shaping post to go up mould benevolence, lower mould benevolence has down the shaping post, go up the shaping post with it is cylindrical down to become the shaping post, go up the shaping post, become the shaping post down with the type ring all is located in the shaping passageway, the type ring is located go up the shaping post with between the shaping post down, and go up the diameter of shaping post, down the diameter of shaping post and the external diameter of type ring all equals the internal diameter of shaping passageway.

Further, the upper die core and the lower die core are both made of tungsten steel materials.

Further, the side wall of the jacket has an inner vent aligned with the swage ring in the up-down direction.

Furthermore, the upper die core is also provided with an upper limiting base station, the diameter of the upper limiting base station is larger than the inner diameter of the die sleeve, the upper forming column protrudes from the lower surface of the upper limiting base station, and the lower surface of the upper forming column is provided with an upper groove.

Further, the lower die core is also provided with a lower limiting base station, the diameter of the lower limiting base station is larger than the inner diameter of the die sleeve, the lower forming column protrudes from the upper surface of the lower limiting base station, and the upper surface of the lower forming column is provided with a lower forming groove.

Further, the side wall of the middle meat drum is provided with an outer air outlet which is aligned with the inner air outlet along the up-down direction.

After the technical scheme is adopted, the utility model discloses an effect is: the glass lens forming die with the structure has the advantages that the lower die core does not need to be provided with the positioning step, the manufacturing cost of the glass lens is reduced, the core taking process is not needed after the glass lens is formed, and the manufacturing efficiency is greatly improved.

Drawings

Fig. 1 is an exploded view of a molding die according to the present invention;

fig. 2 is a sectional view of a molding die according to the present invention;

fig. 3 is a schematic view of an upper mold insert according to the present invention;

fig. 4 is a schematic view of a lower mold core according to the present invention.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides a glass lens forming die with equal diameter type ring combines fig. 1 and fig. 2 to show, and forming die includes: well meat section of thick bamboo 1, die sleeve 2, go up mould benevolence 3, lower mould benevolence 4 and type ring 5, well meat section of thick bamboo 1 and die sleeve 2 are well entire body, and well meat section of thick bamboo 1 has and holds passageway 11, and die sleeve 2 has shaping passageway 21, and shaping passageway 21 is cylindrical, and die sleeve 2 is arranged in holding passageway 11, goes up mould benevolence 3 and has last shaping post 31, and lower mould benevolence 4 has lower shaping post 41, and it is cylindrical to go up shaping post 31 and lower shaping post 41, and it all is arranged in shaping passageway 21 to go up shaping post 31, lower shaping post 41 and type ring 5, in the utility model discloses in, type ring 5 is located between last shaping post 31 and the lower shaping post 41 to the diameter of last shaping post 31, the diameter of lower shaping post 41 and the external diameter of type ring 5 all equal to the internal diameter of shaping passageway 21.

In the process of die casting of the forming die, firstly, the lower forming column 41 of the lower die core 4 is inserted into the die sleeve 2, then the forming ring 5 is placed on the lower forming column 41, then the die sleeve 2 together with the lower die core 4 and the forming ring 5 are placed into the meat tube 1, then the glass preform is placed on the lower forming column 41 of the lower die core 4, at the moment, the glass preform is positioned in the middle of the forming ring 5, finally, the upper forming column 31 of the upper die core 3 is inserted into the die sleeve 2, the glass preform is heated and pressed, and the upper forming column 31, the lower forming column 41 and the forming ring 5 jointly form a die cavity 6 to form a glass lens.

Different from traditional forming die, type ring 5 no longer relies on the location step to fix a position, consequently the utility model discloses a lower mould benevolence 3 need not set up the location step, has reduced the manufacturing cost of glass lens. In addition, the type ring 5 is positioned by the type sleeve 2, and the type sleeve 2 is not required to be formed by a metal material (such as tungsten steel) with higher hardness, so that the type sleeve 2 is easy to process, the size precision is higher, the type ring 5 can be accurately positioned, a core taking process is not required after the glass lens is molded, and the manufacturing efficiency is greatly improved.

Specifically, the upper die core 3 and the lower die core 4 are both formed of a tungsten steel material. The tungsten steel has higher hardness, and can effectively mold glass materials.

Specifically, the sidewall of the jacket 2 has an inner vent 22, and the inner vent 22 is aligned with the swage ring 5 in the up-down direction. In the process that the upper die core 3 moves downwards, the inner air outlet 22 can discharge air in the forming channel 21, so that the moving smoothness of the upper die core 3 is ensured.

Specifically, as shown in fig. 3, the upper mold core 3 further has an upper limit base 32, the diameter of the upper limit base 32 is larger than the inner diameter of the jacket 2, the upper forming column 31 protrudes from the lower surface of the upper limit base 32, and the lower surface of the upper forming column 31 has an upper groove 310. The upper limiting base station 32 can limit the degree of the upper forming column 31 inserted into the jacket 2; the upper groove 310 is used to form the cavity 6.

Specifically, as shown in fig. 4, the lower mold core 4 further has a lower limit base 42, the diameter of the lower limit base 42 is larger than the inner diameter of the jacket 2, the lower forming column 41 protrudes from the upper surface of the lower limit base 42, and the upper surface of the lower forming column 41 has a lower forming groove 410. The lower limiting base 42 can limit the degree of inserting the lower forming column 41 into the jacket 2; the lower molding groove 410 is used to form the cavity 6.

Specifically, with continued reference to FIG. 1, the sidewall of the meat drum 1 has an outer exhaust opening 12, and the outer exhaust opening 12 is vertically aligned with the inner exhaust opening 22. In the process that the upper die core 3 moves downwards, the outer exhaust port 12 can exhaust air in the accommodating channel 11, so that the moving smoothness of the upper die core 3 is further ensured.

Therefore, the glass lens forming die with the structure has the advantages that the lower die core does not need to be provided with the positioning step, the manufacturing cost of the glass lens is reduced, the core taking process is not needed after the glass lens is formed, and the manufacturing efficiency is greatly improved.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. A glass lens forming mold with an isometric ring, the forming mold comprising: well meat section of thick bamboo (1), jacket (2), go up mould benevolence (3), lower mould benevolence (4) and type ring (5), well meat section of thick bamboo (1) with jacket (2) all are well entire body, well meat section of thick bamboo (1) has and holds passageway (11), jacket (2) have shaping passageway (21), shaping passageway (21) are cylindrical, jacket (2) are located hold passageway (11) in, go up mould benevolence (3) and have last shaping post (31), lower mould benevolence (4) have lower shaping post (41), go up shaping post (31) with lower shaping post (41) all are cylindrical, go up shaping post (31), lower shaping post (41) and type ring (5) all are located in shaping passageway (21), its characterized in that: the swage ring (5) is located between the upper and lower forming posts (31, 41), and the diameter of the upper forming post (31), the diameter of the lower forming post (41) and the outer diameter of the swage ring (5) are all equal to the inner diameter of the forming passage (21).

2. The glass lens forming mold with the constant diameter ring as claimed in claim 1, wherein: the upper die core (3) and the lower die core (4) are both made of tungsten steel materials.

3. The glass lens forming mold with the constant diameter ring as claimed in claim 1, wherein: the side wall of the die sleeve (2) is provided with an inner exhaust port (22), and the inner exhaust port (22) is aligned with the swage ring (5) along the up-down direction.

4. The glass lens forming mold with the constant diameter ring as claimed in claim 3, wherein: the upper die core (3) is further provided with an upper limiting base station (32), the diameter of the upper limiting base station (32) is larger than the inner diameter of the jacket (2), the upper forming column (31) protrudes from the lower surface of the upper limiting base station (32), and the lower surface of the upper forming column (31) is provided with an upper groove (310).

5. The glass lens forming mold with the constant diameter ring as claimed in claim 4, wherein: the lower die core (4) is further provided with a lower limiting base station (42), the diameter of the lower limiting base station (42) is larger than the inner diameter of the jacket (2), the lower forming column (41) protrudes from the upper surface of the lower limiting base station (42), and the upper surface of the lower forming column (41) is provided with a lower forming groove (410).

6. The glass lens forming mold with the constant diameter ring as claimed in claim 5, wherein: the side wall of the middle meat drum (1) is provided with an outer air outlet (12), and the outer air outlet (12) is aligned with the inner air outlet (22) along the up-down direction.