CN201881528U - Reproduction mold for manufacturing diffractive optic lens - Google Patents
Reproduction mold for manufacturing diffractive optic lens Download PDFInfo
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- CN201881528U CN201881528U CN2010206529745U CN201020652974U CN201881528U CN 201881528 U CN201881528 U CN 201881528U CN 2010206529745 U CN2010206529745 U CN 2010206529745U CN 201020652974 U CN201020652974 U CN 201020652974U CN 201881528 U CN201881528 U CN 201881528U
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Abstract
Disclosed is a reproduction mold for manufacturing diffractive optic lens. A moving mold and a fixed mold are mutually fastened and positioned by the aid of two opposite mold joints, a core mold cavity and a flux injection runner communicated with the core mold cavity are symmetrically arranged on two sides of the mold joints, a circling structure of the depth d1 smaller than that of the mold joint is arranged at an opening of the mold joint of the core mold cavity, and communicated to the outside of the reproduction mold by a communicating structure of the depth d2, wherein d2>d1. The circling structure and the communicating structure corresponding to the moving/fixed mold are fastened to form gaps and channels, and the gaps and the channels are used for exhausting air by the core mold cavity. A circling communicating structure of the depth d2 the same with that of the communicating structure is arranged on the outer side of the circling structure, and at least one transition air exhausting structure of the depth d3 is arranged between the circling structure and the circling communicating structure, wherein d2>d3>d1. According to tests, the reproduction mold can perfectly solve the problems in the aspect of filling speed, burning, flow marks, weld lines and the like. Further, the surface accuracy of the lens can be improved and non-removable flash is eliminated, and influences on later assembling of products are avoided so that quality is guaranteed.
Description
Technical field
The utility model relates to a kind ofly makes the equipment of diffraction optical lens, particularly a kind of copy mold of making diffraction optical lens in the injection moulding mode.
Background technology
Diffraction optical lens particularly has complexity and the diffraction optical lens element that high-precision requirement is arranged as special constructions such as diffraction micro structurals, and how to carry out batch manufacturing in the injection moulding mode with copy mold at present.Its principle and process are under heat and external force effect, promptly, with the optical plastic material of constantly input after heating, compression, shearing, mix, relend and help screw rod that melt is exerted pressure, it is pushed by moving/quiet mould fasten mutually in the formed closed mould cavity in back along relative die joint, make the optical plastic material change viscous state into from glassy state experience elastomeric state, injection filling mould, cooling gradually in die cavity, return through elastomeric state from viscous state and to go back to glassy state again, form the diffraction optical lens goods consistent at last with the die cavity shape.Along with the injection gradually and the propelling of molten state material, the gas in the die cavity must progressively be discharged, and just can make material at the uniform velocity, fullly be full of whole core die cavity.For this reason, at present in the structure of copy mold, in fasten the moving/quiet mould of location mutually with relative die joint, the melt injection molding channel that respectively is provided with a core chamber and is communicated with it in the die joint bilateral symmetry, die joint peristome in the core chamber have with the d1 degree of depth be lower than die joint around structure, its connectivity structure and mould through having the d2 degree of depth is interlinked to the outside, d2＞d1, by moving/quiet intermode relative fasten gap and the passage that the back forms the outside exhaust in core chamber around/connectivity structure.Find in the production, the exhaust result of this structure mold is unsatisfactory, show: because this exhaust clearance does not allow too big usually, and exhaust clearance is little, exhaust effect is poor, the partial material time of staying that is subjected to gas to hinder operation is prone to the situation of being burnt after the length slightly, and the fluid that can not evenly advance also can form defects such as current mark, weld bond on the final product that forms, and makes the surface figure accuracy of lens element be difficult for guaranteeing; And if enlarge exhaust clearance, then the material that retains and/or extrude in this gap then can form overlap and the burr that can't remove, influence the product assembling, thereby be present diffraction optical lens, especially labyrinth and/or have in the manufacturing of high-precision requirement lens, long-term existence is at filling velocity and burn, the insoluble contradiction in aspect such as current mark, weld bond, be to influence the precision of lens face shape and the key factor of yield rate.
The utility model content
At above-mentioned situation, the utility model provides a kind of copy mold that improves the manufacturing diffraction optical lens of structure, the results showed, can address the above problem satisfactorily.
The copy mold of the utility model manufacturing diffraction optical lens is the improvement on present traditional moulds architecture basics, its structure is equally in fasten the moving/quiet mould of location mutually with relative die joint, the melt injection molding channel that is provided with a core chamber and is communicated with it in the die joint bilateral symmetry, die joint peristome in the core chamber have with the d1 degree of depth be lower than die joint around structure, its connectivity structure and mould through having the d2 degree of depth is interlinked to the outside, and d2＞d1 is by relative the fastening the back around structure and connectivity structure and form exhaust clearance and the passage that the core chamber is in communication with the outside of moving/quiet intermode.Wherein, in the outside, be provided with around connectivity structure with the mode of communicating that has a same depth d2 with connectivity structure, and be provided with the transition exhaust structure that at least one has the d3 degree of depth and d2＞d3＞d1 around structure and between around connectivity structure around structure.
In the said structure, said transition exhaust structure can preferably be arranged on the opposite side radially relative with the inlet of melt injection molding channel usually.
In the above-mentioned mould of the utility model, said around structure, around depth d 1, d2 and the d3 of connectivity structure and transition exhaust structure, can be different and do suitable adjustment according to the structure of manufacturing diffraction optical lens, size etc.For example, when adopting 0.005 ~ 0.03mm commonly used around the depth d 1 of structure, when can be 0.2 ~ 0.5mm scope around the depth d 2 of connectivity structure, the depth d 3 of said transition exhaust structure can should be 0.05 ~ 0.2mm mutually.
Test shows, the radially development length of said transition exhaust structure in the above-mentioned mould according to the structure of manufacturing diffraction optical lens, size etc., also can obtain better exhaust effect by suitable adjustment.For example, generally speaking radially development length can be chosen in 5 ~ 10mm scope and adjust.
A large amount of tests show, the copy mold of the utility model said structure form, by in traditional moulds, be used for exhaust around be provided with outside the structure staged different depth have cushioning effect around connectivity structure and transition exhaust structure, thereby solve traditional moulds satisfactorily at filling velocity and burning, current mark, the insoluble contradiction in aspects such as weld bond has improved the precision and the removable invariably overlap of lens face shape, the assembling of product later stage is had no effect, guaranteed product quality.
Below in conjunction with the specific embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.
Description of drawings
Fig. 1 is the copy mold structural representation that existing traditional form is used to make diffraction optical lens.
Fig. 2 is the structural representation of the A-A revolved section among Fig. 1.
Fig. 3 is a kind of structural representation that the utility model is made the copy mold of diffraction optical lens.
Fig. 4 is the structural representation of the A-A revolved section among Fig. 3.
The specific embodiment
Fig. 1 and Fig. 2 are currently reported and/or the copy mold structure that is used to make diffraction optical lens of the traditional form of use.In the dynamic model/quiet mould 1 that fastens the location with relative die joint 3 mutually (shown in the figure is one of them), at the melt injection molding channel 6 that the die joint bilateral symmetry is provided with a core chamber 5 and is communicated with it, the die joint peristome in core chamber 5 have with the d1 degree of depth be lower than die joint around structure 4.Should be interlinked to the outside with mould around the connectivity structure 2 of structure 4 through having the d2 degree of depth, and d2＞d1.During use, by relative the fastening the back around structure 4 and connectivity structure 2 and form exhaust clearance and the passage that core chamber 5 is in communication with the outside of moving/1 of quiet mould.
Fig. 3 and Fig. 4 are a kind of structures that the utility model is made the copy mold of diffraction optical lens.On the mould structure basis of above-mentioned traditional form, in this outside around structure 4, also be provided with a circulating type connectivity structure 8 with the mode of communicating that has a same depth d2 with this connectivity structure 2, and be provided with a transition exhaust structure 7 around structure 4 and between with d3 degree of depth around connectivity structure 8 at this, this transition exhaust structure 7 is arranged on the position with the radially relative opposite side of melt injection molding channel 6 inlet, and it is being 5 ~ 10mm around structure 4 and around the radially development length of 8 of connectivity structures.Said depth d 1 around structure 4 is 0.005 ~ 0.03mm, and the depth d 3 of transition exhaust structure 7 is 0.05 ~ 0.2mm, is 0.2 ~ 0.5mm around the depth d 2 of connectivity structure 8, makes it form the exhaust structure of three staged different depths of d2＞d3＞d1.
Claims (5)
1. make the copy mold of diffraction optical lens, fastening mutually with relative die joint (3) in the moving/quiet mould (1) of location, the melt injection molding channel (6) that is provided with a core chamber (5) and is communicated with it in the die joint bilateral symmetry, die joint peristome in core chamber (5) have with the d1 degree of depth be lower than die joint around structure (4), its connectivity structure (2) through having the d2 degree of depth is interlinked to the outside with mould, and d2＞d1, then form exhaust clearance and the passage that core chamber (5) is in communication with the outside by relative fastening the between moving/quiet mould (1) around structure (4) and connectivity structure (2), it is characterized in that in the outside around structure (4), be provided with around connectivity structure (8) with the mode of communicating that has a same depth d2 with connectivity structure (2), and be provided with the transition exhaust structure (7) that at least one has the d3 degree of depth and d2＞d3＞d1 around structure (4) and between around connectivity structure (8).
2. the copy mold of manufacturing diffraction optical lens as claimed in claim 1 is characterized in that said transition exhaust structure (7) is for being arranged on the radially relative opposite side of melt injection molding channel (6) inlet.
3. the copy mold of manufacturing diffraction optical lens as claimed in claim 1 or 2, it is characterized in that said depth d 1 around structure (4) is 0.005 ~ 0.03mm, the depth d 3 of transition exhaust structure (7) is 0.05 ~ 0.2mm, is 0.2 ~ 0.5mm around the depth d 2 of connectivity structure (8).
4. the copy mold of manufacturing diffraction optical lens as claimed in claim 1 or 2, the radially development length that it is characterized in that said transition exhaust structure (7) is 5 ~ 10mm.
5. the copy mold of manufacturing diffraction optical lens as claimed in claim 3, the radially development length that it is characterized in that said transition exhaust structure (7) is 5 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206529745U CN201881528U (en) | 2010-12-10 | 2010-12-10 | Reproduction mold for manufacturing diffractive optic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206529745U CN201881528U (en) | 2010-12-10 | 2010-12-10 | Reproduction mold for manufacturing diffractive optic lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201881528U true CN201881528U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206529745U Expired - Fee Related CN201881528U (en) | 2010-12-10 | 2010-12-10 | Reproduction mold for manufacturing diffractive optic lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201881528U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568220A (en) * | 2013-11-04 | 2014-02-12 | 昆山顺康达工业产品设计有限公司 | Flow passage structure and mold capable of solving flow passage burr |
| CN103817933A (en) * | 2012-11-16 | 2014-05-28 | 财团法人金属工业研究发展中心 | Method for processing object with holographic diffraction pattern |
| CN104669475A (en) * | 2013-11-28 | 2015-06-03 | 一品光学工业股份有限公司 | Mold for forming lens, lens and method for manufacturing lens |
| CN104842524A (en) * | 2015-04-22 | 2015-08-19 | 成都奥晶科技有限责任公司 | Plastic optical lens injection molding mold exhaust system |
| CN113927835A (en) * | 2021-10-22 | 2022-01-14 | 江苏汇鼎光学眼镜有限公司 | Auxiliary device is filled to resin in resin glasses lens production process |
-
2010
- 2010-12-10 CN CN2010206529745U patent/CN201881528U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817933A (en) * | 2012-11-16 | 2014-05-28 | 财团法人金属工业研究发展中心 | Method for processing object with holographic diffraction pattern |
| CN103568220A (en) * | 2013-11-04 | 2014-02-12 | 昆山顺康达工业产品设计有限公司 | Flow passage structure and mold capable of solving flow passage burr |
| CN104669475A (en) * | 2013-11-28 | 2015-06-03 | 一品光学工业股份有限公司 | Mold for forming lens, lens and method for manufacturing lens |
| CN104842524A (en) * | 2015-04-22 | 2015-08-19 | 成都奥晶科技有限责任公司 | Plastic optical lens injection molding mold exhaust system |
| CN113927835A (en) * | 2021-10-22 | 2022-01-14 | 江苏汇鼎光学眼镜有限公司 | Auxiliary device is filled to resin in resin glasses lens production process |
| CN113927835B (en) * | 2021-10-22 | 2023-06-30 | 江苏汇鼎光学眼镜有限公司 | Resin filling auxiliary device in production process of resin spectacle lenses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |