CN1982239A

CN1982239A - Moulded glass equipment

Info

Publication number: CN1982239A
Application number: CN 200510120702
Authority: CN
Inventors: 颜士杰
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-12-15
Filing date: 2005-12-15
Publication date: 2007-06-20
Anticipated expiration: 2025-12-15
Also published as: CN1982239B

Abstract

A molded glass device consists of upper mold kernel, lower mold kernel, bushing and upper board. The lower mold kernel is placed underneath upper mold kernel, a hole at center of bushing is similar with upper mold kernel and lower mold kernel peripheral profile, they are set inside the hole, the upper board is placed on top of upper mold kernel to pressurize it, and an elastic element is set on the upper board to exclude upper mold kernel.

Description

Moulded glass equipment

[technical field]

The invention relates to a kind of moulded glass equipment, especially a kind of moulded glass equipment that helps avoiding the die damage.

[background technology]

Aspherical lens makes optical system reach compact function owing to can reduce the component number of optical system, so that aspherical lens is used on optical system is increasingly extensive, as mobile telephone capable of taking pictures, digital camera etc.Aspherical lens generally divides aspheric surface glass mirror and aspheric surface glass lens, owing to the light transmission of glass mirror itself will be got well much than glass lens, so the application of aspheric surface glass mirror is more extensive.The aspheric surface glass mirror generally has two kinds of making methods, i.e. polishing and model method.Polishing is owing to course of processing complexity, and it is mainly used in bigger optical mirror slip, and the model method is exactly the Tool and Die Technology output eyeglass to penetrate, to suppress, and this method can overcome the grinding difficulty of aspherical lens, and it does not need the attrition process processing procedure.

Existing moulded glass equipment comprises upper cores 10, following die 12, lining 13 and upper plate 15 etc. as shown in Figure 1, and die 12 was made of ground 101, media layer 102 and protective membrane 103 respectively under general upper cores 10 reached.Ground 101 is generally the metal or metal alloy with heat impedance and sufficient intensity, as silicon carbide, wolfram varbide etc.Protective membrane 103 needs very strong thermotolerance, oxidation-resistance and anti-stampability; also need good release simultaneously; be generally diamond like carbon film, silicon carbide, titanium carbide etc., can also be the precious metal plated film, as platinum iridium alloy, iridium rhenium alloys or iridium ruthenium alloy etc.The effect of media layer 102 is in order to increase the tack of protective membrane 103 and ground 101.The function of lining 13 is to be used for adjusting upper cores 10 to reach the position of die 12 down, makes upper cores 10 and die 12 accurately contraposition in the model process down to suppress the ideal aspherical lens.Upper plate 15 is used for upper cores 10 is exerted pressure.

In the model process, 15 pairs of upper cores 10 of upper plate press, and reaching upper cores 10 down, the melten glass between the die 12 is pressed into optical mirror slip.After model is finished, optical mirror slip need be taken out, at this moment, upper plate 15 need be promoted, again upper cores be taken out, take out in type optical mirror slip then.Yet when pressing down, the air of 10 of upper plate 15 and upper cores can be extruded upper plate 15, can drive upper cores 10 when then upper plate 15 promotes rises, this process is easy to cause upper cores 10 to drop suddenly, though and die material hardnesses such as silicon carbide, wolfram varbide are good but very crisp, then dropping suddenly of upper cores 10 is easy to cause upper cores 10 to damage.

[summary of the invention]

In view of above-mentioned condition, be necessary to provide a kind of moulded glass equipment that helps protecting die produced glass model core.

A kind of moulded glass equipment, it comprises upper cores, following die, lining and upper plate, this time die places the below of upper cores, these lining central authorities be one with upper cores and the following consistent hole of the peripheral profile of die, die can be sheathed in this hole under this upper cores reached, and this upper plate movably places the upper cores top, is used for upper cores is exerted pressure, this upper plate is provided with an elastic element, and this elastic element can apply elastic repulsion power to upper cores.

The set elastic element of this moulded glass equipment upper plate can stop down that die is taken up when upper plate promotes, thereby can effectively protect upper cores, drops when avoiding upper cores to be taken up by upper plate and damages.

[description of drawings]

Fig. 1 is existing moulded glass equipment synoptic diagram;

Fig. 2 is the moulded glass equipment synoptic diagram of preferred embodiment of the present invention;

Fig. 3 is the moulded glass equipment model process synoptic diagram of preferred embodiment of the present invention;

Fig. 4 is the schematic perspective view of the moulded glass equipment upper plate of preferred embodiment of the present invention.

[embodiment]

Moulded glass equipment of the present invention is to be used to make optical mirror slip, mainly is the used aspherical lens such as mobile telephone that are applied to make small digital cameras or tool digital camera.

Please refer to Fig. 2 to shown in Figure 4, the better embodiment of moulded glass equipment of the present invention comprises die 20, upper cores 22, lining 23 and upper plate 24 down.

Following die 20 is by ground 201; media layer 202 and protective membrane 203 constitute; wherein ground 201 is to be made by tungsten carbide material; media layer 202 and protective membrane 203 are by sputtering method or CVD (ChemicalVapor Deposition; chemical vapour deposition) is plated on the ground 201; the material of protective membrane 203 can be selected from following material: platinum iridium alloy (Pt-Ir); platinum-ruthenium alloys (Pt-Ru); iridium rhenium alloys (Ir-Re); iridium ruthenium alloy (Ir-Ru); tantalum-tungsten alloy (Ta-W) etc.; and media layer 202 is positioned in the middle of ground 201 and the protective membrane 203, and its material is a kind of metal ingredient in the protective membrane 203 alloy materials.Protective membrane 203 has the model face of an aspherical shape, and this model face defines a model groove, and this model groove can be used for the optical mirror slip that model has non-spherical surface.Same, upper cores 22 also includes ground 221, media layer 222 and protective membrane 223, and the material of ground 221, media layer 222 and protective membrane 223 is consistent with ground 201, media layer 202 and the protective membrane 203 of following die 20.

Lining 23 central authorities be one with upper cores 2 and the consistent hole 230 of die 1 peripheral profile down, this lining 23 can will descend die 20 and upper cores 22 to be placed in its hole 230.

Upper plate 24 movably places upper cores 22 tops, is used for upper cores 22 is exerted pressure, and this upper plate 24 comprises a substrate 240 and a boss 242, and this boss 242 is connected on this substrate 240.Also be provided with two springs 243 on the substrate 240, this two springs 243 are symmetric is located at boss 242 both sides, and an end of each spring 243 is connected on the substrate 240, and the other end links together by a steel wire 244.Boss 242 surfaces are provided with groove 245, and the degree of depth of this groove 245 is greater than the diameter of steel wire 244, steel wire 244 be positioned at this groove 245 directly over, or being contained in this groove 245 of this steel wire 244 parts.

Please be simultaneously with reference to Fig. 2 and shown in Figure 3, during the moulded glass operation, following die 20 is packed in the hole 230 of lining 23 by the below, in the model groove of following die 20, put into glass preform 3 then through heating unit (figure does not show) heating and melting, Heating temperature is 500 ℃ to 600 ℃, then upper cores 22 is put into the hole 230 of lining 23, utilize 24 pairs of upper cores 22 of upper plate to exert pressure downwards, then fused glass preform 3 is pressed into the optical mirror slip consistent with the model face 32 under the pressure of upper cores 22.When 24 pairs of upper cores of upper plate were exerted pressure, the steel wire 244 that connects two springs 243 was pressed in the groove 245.After model is finished, promote upper plate 24, steel wire 244 is compeled by the screen resilience of spring 243 and is ejected groove 245, then because the 244 pairs of upper cores 22 of steel wire that eject have elastic repulsion power, thereby can stop upper cores 22 to be taken up, thereby avoid upper cores 22 to be damaged by upper plate 24.And the existence of groove 245 also helps abolishing the vacuum between upper plate 24 and the upper cores 22, can prevent that also upper cores 22 from being mentioned by upper plate 24 and damage.At last upper cores 22 is taken out in lining 23, then aspherical lens 32 is taken out in the model groove of following die 20, can obtain the optical mirror slip of accurate model, promptly finish the model process one time.

Be appreciated that spring 243 also can be the elastic element that other can apply elastic repulsion power to upper cores 22, as shell fragment etc.

Claims

1. moulded glass equipment, it is characterized in that: it comprises upper cores, following die, lining and upper plate, this time die places the below of upper cores, these lining central authorities be one with upper cores and the following consistent hole of the peripheral profile of die, die can be sheathed in this hole under this upper cores reached, and this upper plate movably places the upper cores top, is used for upper cores is exerted pressure, this upper plate is provided with an elastic element, and this elastic element can apply elastic repulsion power to upper cores.

2. moulded glass equipment as claimed in claim 1 is characterized in that: described upper plate comprises a substrate and a boss.

3. moulded glass equipment as claimed in claim 2 is characterized in that: described elastic element is some springs, and this spring is located at the boss both sides, and an end of this spring is located on the substrate, and the other end is connected together by a steel wire.

4. moulded glass equipment as claimed in claim 3 is characterized in that: described boss surface is provided with groove, and described steel wire is contained in this groove to small part.

5. moulded glass equipment as claimed in claim 4 is characterized in that: described depth of groove is greater than described gauge of wire.

6. moulded glass equipment as claimed in claim 1 is characterized in that: described upper cores and down die comprise and comprise a ground and a protective membrane at least that protective membrane is overlying on substrate surface.

7. moulded glass equipment as claimed in claim 6 is characterized in that: the material of described ground is a wolfram varbide.

8. moulded glass equipment as claimed in claim 6 is characterized in that: the material of described protective membrane is for being selected from a kind of alloy in platinum iridium alloy (Pt-Ir), platinum-ruthenium alloys (Pt-Ru), iridium rhenium alloys (Ir-Re), iridium ruthenium alloy (Ir-Ru) and the tantalum-tungsten alloy (Ta-W).

9. moulded glass equipment as claimed in claim 8 is characterized in that: die also comprised media layer under described upper cores reached, and this media layer is between described ground and protective membrane.

10. moulded glass equipment as claimed in claim 9 is characterized in that: the material of described media layer is a kind of metal contained in the alloy of described protective membrane.