CN219926770U - Environment-friendly aspherical resin lens injection mold - Google Patents
Environment-friendly aspherical resin lens injection mold Download PDFInfo
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- CN219926770U CN219926770U CN202321316840.XU CN202321316840U CN219926770U CN 219926770 U CN219926770 U CN 219926770U CN 202321316840 U CN202321316840 U CN 202321316840U CN 219926770 U CN219926770 U CN 219926770U
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- 239000011347 resin Substances 0.000 title claims abstract description 59
- 229920005989 resin Polymers 0.000 title claims abstract description 59
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000005498 polishing Methods 0.000 claims abstract description 77
- 239000011521 glass Substances 0.000 claims description 33
- 238000013003 hot bending Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910010293 ceramic material Inorganic materials 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000012994 photoredox catalyst Substances 0.000 claims description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 12
- 239000004417 polycarbonate Substances 0.000 claims description 12
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 229920001342 Bakelite® Polymers 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000004637 bakelite Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229920003134 Eudragit® polymer Polymers 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000012545 processing Methods 0.000 abstract description 11
- 230000003746 surface roughness Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 18
- 229910002804 graphite Inorganic materials 0.000 description 18
- 239000010439 graphite Substances 0.000 description 18
- 239000003292 glue Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- -1 acryl Chemical group 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- 230000004379 myopia Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of lens processing, and particularly discloses an environment-friendly aspherical resin lens injection mold which is easy to process, low in surface roughness, good in lens quality and beneficial to mass production of lenses, and comprises a front mold base, a rear mold base, a pre-polishing mold core front mold and a pre-polishing mold core rear mold, wherein one side of the front mold base is provided with a first arc-shaped groove, the other side of the rear mold base is provided with a first arc-shaped convex part, and an accommodating space is formed between the first arc-shaped convex part and the first arc-shaped groove; one side of the first arc-shaped convex part is provided with a straight abutting part, and the other side of the first arc-shaped convex part is provided with a notch part which is surrounded with the edge of the first arc-shaped groove to form a filling opening; one side of the front mould of the pre-polishing mould core is attached to the inner surface of the first arc-shaped groove, and the other side of the front mould of the pre-polishing mould core is provided with a second arc-shaped groove; one side of the back mould of the pre-polishing mould core is attached to the outer surface of the first arc-shaped convex part, and the other side of the back mould of the pre-polishing mould core is provided with a second arc-shaped convex part; and a filling area which is communicated with the filling opening and used for filling resin is formed between the second arc-shaped groove and the second arc-shaped convex part.
Description
Technical Field
The utility model relates to the technical field of lens processing, in particular to an environment-friendly aspherical resin lens injection mold.
Background
The resin is one of the main materials for manufacturing the glasses lenses, and the resin lenses have the characteristics of light weight, good light transmittance, wear resistance and the like, can effectively protect eyes from being damaged by ultraviolet rays, and are widely used for manufacturing myopia glasses, presbyopic glasses, sunglasses and the like. In addition, resin is also one of the main materials for manufacturing optical elements, including manufacturing optical instruments such as aspherical spectacles, spectacle lenses, telescopes, microscopes, etc., and has the characteristics of high light transmittance, abrasion resistance, impact resistance, etc., and can be used for manufacturing lenses, optical elements, etc.
Currently, resin lens molds on the market are of a double-layer glass sandwich structure (as shown in fig. 1), a glass front mold 1 and a glass rear mold 2 are connected and assembled through a rubber ring 3 to form a middle cavity 4, and resin is injected into the cavity 4 to be heated and cured, so that the resin lens is obtained. Because the resin lens has extremely high requirements on the surface finish of the die when being used in a precise instrument or an optical scene, the surface roughness is required to be 1.2-1.5um, and after the lens is processed by adopting the die, CNC (computerized numerical control) is also required to be used for grinding for many times so as to improve the surface finish of the lens. The glass mold has high hardness, low processing and polishing efficiency and large batch manufacturing difficulty; the outline size difference of the lens is not easy to control; the surface finish of the lens polished by CNC cannot reach the standard; and the stability of the aspherical curvature of the lens is difficult to control, and the quality of the lens is affected.
Disclosure of Invention
Accordingly, it is desirable to provide an environmentally friendly aspherical resin lens injection mold which is easy to process, has low surface roughness, has good lens quality, and is suitable for mass production of lenses.
An environmentally friendly aspherical resin lens injection mold comprising:
a first arc-shaped groove is formed in one side surface of the front die base;
the rear die base is provided with a first arc-shaped convex part adjacent to one side surface of the front die base, the rear die base is slidably close to or far away from the front die base so that the first arc-shaped convex part is embedded into or separated from the first arc-shaped groove, an arc-shaped accommodating space is formed between the surface of the first arc-shaped convex part and the inner surface of the first arc-shaped groove, one side of the first arc-shaped convex part is provided with a straight abutting part abutting against one side edge of the first arc-shaped groove when the first arc-shaped convex part is embedded into the first arc-shaped groove, and the other side of the first arc-shaped convex part is provided with a notch part surrounding the other side edge of the first arc-shaped groove into a filling opening when the first arc-shaped convex part is embedded into the first arc-shaped groove;
the pre-polishing mold core front mold is accommodated in the accommodating space, one side surface of the pre-polishing mold core front mold is attached to the inner surface of the first arc-shaped groove, and the other side surface of the pre-polishing mold core front mold is provided with a second arc-shaped groove;
the front side surface of the pre-polishing mold core back mold is attached to the outer surface of the first arc-shaped convex part, and the other side surface of the pre-polishing mold core back mold is provided with a second arc-shaped convex part; and a filling area which is communicated with the filling opening and is used for filling resin is formed between the second arc-shaped groove and the second arc-shaped convex part.
In one embodiment, the top of the first arc-shaped groove is convex and forms a first limit convex part, and the bottom of the first arc-shaped groove is convex and forms a second limit convex part; the top of the first arc-shaped convex part is convex and forms a third limit convex part, and the bottom of the first arc-shaped convex part is convex and forms a fourth limit convex part; the inner side surface of the first limit convex part and the inner side surface of the second limit convex part are respectively abutted with the end part of the front mould of the pre-polishing mould core, the inner side surface of the third limit convex part and the inner side surface of the fourth limit convex part are respectively abutted with the end part of the rear mould of the pre-polishing mould core, the end surface of the second limit convex part is abutted with the end surface of the fourth limit convex part, and the end surface of the first limit convex part and the end surface of the third limit convex part jointly form the filling opening.
In one embodiment, a side surface of the first limiting protrusion, which faces away from the front mold of the pre-polishing mold core, is provided with a first slope portion adjacent to the filling opening, and a side surface of the third limiting protrusion, which faces away from the rear mold of the pre-polishing mold core, is provided with a second slope portion adjacent to the filling opening, and the first slope portion and the second slope portion form a conical drainage opening together.
In one embodiment, the radian of the front mold of the pre-polished mold core is greater than the radian of the rear mold of the pre-polished mold core.
In one embodiment, the pre-polished core front mold is made of glass, metallic aluminum, metallic steel, metallic copper, ABS, PC, PMMA, or a ceramic material; the pre-polished mold core back mold is made of glass, metal aluminum, metal steel, metal copper, ABS, PC, PMMA or ceramic materials.
In one embodiment, the pre-polished core front mold is made of glass and the pre-polished core back mold is made of glass material.
In one embodiment, the front mold base is made of acrylic, metallic aluminum, metallic copper, ABS, PC, PMMA, bakelite, or ceramic material; the back mold base is made of acrylic, metallic aluminum, metallic copper, ABS, PC, PMMA, bakelite or ceramic materials.
In one embodiment, the front mold base is made of acrylic material and the rear mold base is made of acrylic material.
In one embodiment, the pre-polished mold core front mold is formed by hot bending, ceramic sintering or inorganic injection molding; the back mould of the pre-polishing mould core adopts hot bending forming, ceramic sintering forming or inorganic injection molding.
In one embodiment, the front mold of the pre-polishing mold core is formed by hot bending, and the rear mold of the pre-polishing mold core is formed by hot bending.
The utility model provides an environment-friendly aspherical resin lens injection mold, which is characterized in that an arc-shaped pre-polishing mold core front mold and an arc-shaped pre-polishing mold core rear mold are arranged in advance, the surface roughness of the pre-polishing mold core front mold and the surface roughness of the pre-polishing mold core rear mold are reduced and the hardness is ensured by carrying out surface polishing, hardening and other operations on the pre-polishing mold core front mold and the pre-polishing mold core rear mold, resin glue liquid is filled into a filling area only through a filling opening, and a molded resin lens can be obtained after the resin glue liquid is solidified.
Drawings
FIG. 1 is a schematic diagram of a conventional double glass sandwich structure;
FIG. 2 is a schematic diagram showing a state of an injection mold for an environment-friendly aspherical resin lens according to an embodiment of the utility model;
FIG. 3 is a schematic view of an embodiment of an injection mold for an environmentally friendly aspherical resin lens;
FIG. 4 is a schematic view of a first stage of resin lens processing according to an embodiment of the utility model;
FIG. 5 is a schematic diagram of a second stage of resin lens processing according to an embodiment of the utility model;
FIG. 6 is a schematic diagram of a first stage of core processing in accordance with an embodiment of the present utility model;
FIG. 7 is a schematic diagram of a second stage of core processing in accordance with an embodiment of the present utility model.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
Referring to fig. 2 and 3, the utility model discloses an environment-friendly aspherical resin lens injection mold which is easy to process, low in surface roughness, good in lens quality and beneficial to mass production of lenses, and the environment-friendly aspherical resin lens injection mold is mainly used for producing aspherical resin lenses, and can also be used for producing resin myopia lenses, resin hyperopia lenses, telescope resin lenses, microscope resin lenses, camera lens optical lenses, sports eye protection resin lenses and the like. Specifically, the injection mold for the environment-friendly aspheric resin lens comprises a front mold base 100, a rear mold base 200, a pre-polished front mold 300 and a pre-polished rear mold 400, wherein a first arc-shaped groove 110 is formed on one side of the front mold base 100, a first arc-shaped protrusion 210 is disposed on one side of the rear mold base 200 adjacent to the front mold base 100, the rear mold base 200 is slidably close to or far from the front mold base 100 to enable the first arc-shaped protrusion 210 to be embedded into or separated from the first arc-shaped groove 110, an arc-shaped accommodating space 500 is formed between the surface of the first arc-shaped protrusion 210 and the inner surface of the first arc-shaped groove 110, in other words, the radian of the first arc-shaped groove 110 is larger than the radian of the first arc-shaped protrusion 210, so that after the first arc-shaped protrusion 210 of the rear mold base 200 is embedded into the first arc-shaped groove 110 of the front mold base 100, the accommodating space 500 for accommodating the pre-polished front mold 300 and the pre-polished rear mold 400 is formed between the first arc-shaped protrusion 110 and the first arc-shaped protrusion 210.
In this embodiment, one side of the first arc-shaped protrusion 210 is provided with a flat abutting portion 220 abutting against one side edge of the first arc-shaped groove 110 when the first arc-shaped protrusion 210 is embedded in the first arc-shaped groove 110, and the other side of the first arc-shaped protrusion 210 is provided with a notch portion 230 surrounding the other side edge of the first arc-shaped groove 110 to form a filling opening 600 when the first arc-shaped protrusion 210 is embedded in the first arc-shaped groove 110. The pre-polishing mold core front mold 300 is accommodated in the accommodating space 500, one side surface of the pre-polishing mold core front mold 300 is attached to the inner surface of the first arc-shaped groove 110, and the other side surface of the pre-polishing mold core front mold 300 is provided with a second arc-shaped groove 310; the pre-polishing mold core back mold 400 is accommodated in the accommodating space 500, one side surface of the pre-polishing mold core back mold 400 facing away from the pre-polishing mold core front mold 300 is attached to the outer surface of the first arc-shaped convex part 210, and the other side surface of the pre-polishing mold core back mold 400 is provided with a second arc-shaped convex part 410; a filling area 700 communicating with the filling port 600 and used for filling resin is formed between the second arc-shaped groove 310 and the second arc-shaped protrusion 410.
In this embodiment, the notch 230 has a stepped structure, and the notch 230 includes a first step abutting against an end of the pre-polished core back mold 400 and a second step for forming an inner surface of the filling port 600. In another embodiment, the top of the first arc-shaped groove 110 is convex and forms a first limit protrusion 120, and the bottom of the first arc-shaped groove 110 is convex and forms a second limit protrusion 130; the top of the first arc-shaped protrusion 210 protrudes and forms a third limit protrusion 240, and the bottom of the first arc-shaped protrusion 210 protrudes and forms a fourth limit protrusion 250; the inner side surface of the first limit protrusion 120 and the inner side surface of the second limit protrusion 130 are respectively abutted with the end of the pre-polishing mold core front mold 300, the inner side surface of the third limit protrusion 240 and the inner side surface of the fourth limit protrusion 250 are respectively abutted with the end of the pre-polishing mold core back mold 400, the end surface of the second limit protrusion 130 is abutted with the end surface of the fourth limit protrusion 250, and the end surface of the first limit protrusion 120 and the end surface of the third limit protrusion 240 together form a filling port 600. That is, the first and third limit protrusions 120 and 240 are spaced apart from each other, and a filling port 600 for pouring the glue solution is formed therebetween. Further, in the embodiment, a first slope portion 121 is disposed on a side surface of the first limiting protrusion 120 facing away from the pre-polishing mold core front mold 300 and adjacent to the filling port 600, a second slope portion 241 is disposed on a side surface of the third limiting protrusion 240 facing away from the pre-polishing mold core rear mold 400 and adjacent to the filling port 600, and the first slope portion 121 and the second slope portion 241 together form a tapered drainage port 800, so as to reduce difficulty in glue pouring and avoid glue flowing around the filling port 600.
Further preferably, the radian of the pre-polishing mold core front mold 300 is greater than the radian of the pre-polishing mold core rear mold 400, so that after the pre-polishing mold core front mold 300 and the pre-polishing mold core rear mold 400 are embedded into the accommodating space 500, the front mold base 100 and the rear mold base 200 together limit and fix the pre-polishing mold core front mold 300 and the pre-polishing mold core rear mold 400, and simultaneously, a filling area 700 for injecting resin glue solution is formed between the pre-polishing mold core front mold 300 and the pre-polishing mold core rear mold 400.
It should be noted that, in order to reduce the power of injecting the resin glue into the filling area 700, in this embodiment, the front mold base 100 and the rear mold base 200 are arranged side by side, and when the first arc-shaped protrusion 210 of the rear mold base 200 is completely embedded into the first arc-shaped groove 110 of the front mold base 100, the straight abutting portion 220 is located at the bottom side of the rear mold base 200 and abuts against the lower edge of the first arc-shaped groove 110, so as to seal the bottom of the accommodating space 500 and prevent liquid leakage; the filling port 600 is opened upward to allow the resin paste to be introduced. The lower end of the pre-polishing core front mold 300 and the lower end of the pre-polishing core rear mold 400 are respectively abutted with the straight abutting part 220, the upper end of the pre-polishing core rear mold 400 is abutted with the inner surface of the third limit protrusion 240, and the upper end surface of the pre-polishing core front mold 300 is abutted with the inner surface of the first limit protrusion 120, so that after the resin glue solution enters through the filling port 600, the filling area 700 is filled under the action of the self weight of the resin glue solution, and the resin glue solution is formed into a preset shape after being solidified.
The overall outer contour of the rear mold base 200 inserted into the front mold base 100 is a rectangular parallelepiped structure, a frustum-shaped structure, a regular octahedral structure, a regular dodecahedron structure, or an irregular stereoscopic structure. In this embodiment, the overall outer contour of the rear mold base 200 inserted into the front mold base 100 is a rectangular parallelepiped structure.
In one embodiment, the pre-polished core front mold 300 is made of glass, metallic aluminum, metallic steel, metallic copper, ABS, PC, PMMA, or ceramic material; the pre-polished core back mold 400 is made of glass, metallic aluminum, metallic steel, metallic copper, ABS, PC, PMMA, or ceramic material. Preferably, the pre-polished core front mold 300 is made of glass and the pre-polished core back mold 400 is made of glass material. Further, the front mold base 100 is made of acryl, aluminum metal, copper metal, ABS, PC, PMMA, bakelite, eudragit, or ceramic material; the rear mold base 200 is made of acryl, aluminum metal, copper metal, ABS, PC, PMMA, bakelite, or ceramic material. Preferably, the front mold base 100 is made of an acryl material, and the rear mold base 200 is made of an acryl material. Further, the pre-polished mold core front mold 300 is formed by hot bending, ceramic sintering or inorganic injection molding; the pre-polished mold core back mold 400 is formed by hot bending, ceramic sintering or inorganic injection molding. Preferably, the pre-polished core front mold 300 is formed by hot bending, and the pre-polished core rear mold 400 is formed by hot bending.
The following describes the whole process of the resin lens manufactured by the injection mold of this embodiment, with a pre-polished core front mold 300 and a pre-polished core rear mold 400 made of glass material hot-bending processed by a graphite mold, and finally obtaining an aspherical resin lens.
Firstly, drawing a 3D drawing of a glass mold core (namely a pre-polished mold core front mold 300 and a pre-polished mold core rear mold 400) according to a large-curvature lens to be processed, and designing a graphite hot bending mold according to the 3D drawing of the glass mold core. Specifically, graphite is subjected to CNC, polishing and 3D measurement to obtain a graphite mold comprising a graphite upper mold 101, a graphite middle mold 102 and a graphite lower mold 103 as shown in fig. 6, and the working surfaces of the graphite upper mold 101, the graphite middle mold 102 and the graphite lower mold 103 are respectively subjected to surface polishing until the roughness is 0.05-0.1um. Subsequently, the upper flat glass sheet 104 is placed between the upper graphite mold 101 and the middle graphite mold 102, and the lower flat glass sheet 105 is placed between the lower graphite mold 103 and the middle graphite mold 102, and fed into a hot bending apparatus. As shown in fig. 5, the hot bending apparatus includes an upper heating plate 106 and a lower heating plate 107, a graphite mold with flat glass is placed between the upper heating plate 106 and the lower heating plate 107, and after a hot bending process such as presetting, hot pressing, cooling and the like, a required aspheric glass is obtained, after surface polishing and hardening treatment, a 3D measurement is performed on a glass front mold by using a measuring apparatus, and further, the graphite mold is updated and compensated, so that a graphite mold with qualified size is obtained, and a pre-polished mold core front mold 300 (shown in fig. 6 and 7) required for an environment-friendly aspheric resin lens injection mold can be obtained, and a pre-polished mold core rear mold 400 is manufactured according to the same steps as described above.
Referring to fig. 2 and 3, according to the product design of the front mold base 100 of acrylic and the rear mold base 200 of acrylic, the front mold 300 of the pre-polishing mold core and the rear mold 400 of the pre-polishing mold core are inserted between the front mold base 100 and the rear mold base 200 and assembled, and after the assembly, resin filling is performed from the filling port 600 (as shown in fig. 4), and after curing and mold separation (as shown in fig. 5), the pouring gate part of the lens is removed, so that the aspherical resin lens can be obtained.
Because the resin lens is changed from liquid resin to solid resin, the requirement on the mold is very high in 18-24 hours, after the pre-polished mold core front mold 300 and the pre-polished mold core rear mold 400 are subjected to hot bending processing and surface treatment, the purpose of mass replication production of mold cores to manufacture the resin lens is achieved, a glass mold is adopted to replace a traditional CNC (computerized numerical control) grinding glass mold, the surface roughness of hot-bent glass is lower than that of the CNC rear surface, the polishing efficiency of the mold cores to the surface roughness of 1.2-1.5um is improved, the batch manufacturing of the mold can be realized, the glass mold with high smoothness is obtained by batch processing of graphite hot-bent glass, and the use of a hot bending processing technology ensures the precision and consistency of the front and rear molds of glass and improves the quality of the resin lens; the glass material has the characteristics of high strength, high toughness, high precision and the like, can meet the high-quality requirement, and can effectively improve the quality and the production efficiency of products. The manufacturing process is simple, the cost is low, the quality and the production efficiency of products can be effectively improved, in addition, the mold of the embodiment is adopted, the glass usage amount is small, the front mold base 100 and the rear mold base 200 can be recycled, the processing cost of lenses is reduced, and the mold has environmental protection, important practical value and economic benefit.
By means of the environment-friendly aspherical resin lens injection mold, the arc-shaped pre-polishing mold core front mold 300 and the arc-shaped pre-polishing mold core rear mold 400 are preset, the surface roughness of the pre-polishing mold core front mold 300 and the surface roughness of the pre-polishing mold core rear mold 400 are reduced, the hardness of the pre-polishing mold core front mold 300 and the pre-polishing mold core rear mold 400 are guaranteed, resin glue solution is only required to be filled into the filling area 700 through the filling opening 600, and a molded resin lens can be obtained after the resin glue solution is cured.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An environment-friendly aspherical resin lens injection mold, characterized by comprising:
a first arc-shaped groove is formed in one side surface of the front die base;
the rear die base is provided with a first arc-shaped convex part adjacent to one side surface of the front die base, the rear die base is slidably close to or far away from the front die base so that the first arc-shaped convex part is embedded into or separated from the first arc-shaped groove, an arc-shaped accommodating space is formed between the surface of the first arc-shaped convex part and the inner surface of the first arc-shaped groove, one side of the first arc-shaped convex part is provided with a straight abutting part abutting against one side edge of the first arc-shaped groove when the first arc-shaped convex part is embedded into the first arc-shaped groove, and the other side of the first arc-shaped convex part is provided with a notch part surrounding the other side edge of the first arc-shaped groove into a filling opening when the first arc-shaped convex part is embedded into the first arc-shaped groove;
the pre-polishing mold core front mold is accommodated in the accommodating space, one side surface of the pre-polishing mold core front mold is attached to the inner surface of the first arc-shaped groove, and the other side surface of the pre-polishing mold core front mold is provided with a second arc-shaped groove;
the front side surface of the pre-polishing mold core back mold is attached to the outer surface of the first arc-shaped convex part, and the other side surface of the pre-polishing mold core back mold is provided with a second arc-shaped convex part; and a filling area which is communicated with the filling opening and is used for filling resin is formed between the second arc-shaped groove and the second arc-shaped convex part.
2. The injection mold of the environment-friendly aspherical resin lens according to claim 1, wherein the top of the first arc-shaped groove is protruded and forms a first limit protrusion, and the bottom of the first arc-shaped groove is protruded and forms a second limit protrusion; the top of the first arc-shaped convex part is convex and forms a third limit convex part, and the bottom of the first arc-shaped convex part is convex and forms a fourth limit convex part; the inner side surface of the first limit convex part and the inner side surface of the second limit convex part are respectively abutted with the end part of the front mould of the pre-polishing mould core, the inner side surface of the third limit convex part and the inner side surface of the fourth limit convex part are respectively abutted with the end part of the rear mould of the pre-polishing mould core, the end surface of the second limit convex part is abutted with the end surface of the fourth limit convex part, and the end surface of the first limit convex part and the end surface of the third limit convex part jointly form the filling opening.
3. The injection mold of claim 2, wherein a side of the first limiting protrusion facing away from the front mold of the pre-polishing mold core is provided with a first slope portion adjacent to the filling port, a side of the third limiting protrusion facing away from the rear mold of the pre-polishing mold core is provided with a second slope portion adjacent to the filling port, and the first slope portion and the second slope portion together form a tapered drainage port.
4. The injection mold of claim 3, wherein the front mold of the pre-polishing mold core has a radian greater than the rear mold of the pre-polishing mold core.
5. The injection mold for an environment-friendly aspherical resin lens according to claim 4, wherein the front mold of the pre-polished mold core is made of glass, metal aluminum, metal steel, metal copper, ABS, PC, PMMA or ceramic material; the pre-polished mold core back mold is made of glass, metal aluminum, metal steel, metal copper, ABS, PC, PMMA or ceramic materials.
6. The injection mold for an environment-friendly aspherical resin lens according to claim 4, wherein the front mold of the pre-polishing mold core is made of glass, and the rear mold of the pre-polishing mold core is made of glass material.
7. The injection mold of claim 4, wherein the front mold base is made of acrylic, aluminum metal, copper metal, ABS, PC, PMMA, bakelite, eudragit, or ceramic material; the back mold base is made of acrylic, metallic aluminum, metallic copper, ABS, PC, PMMA, bakelite or ceramic materials.
8. The injection mold of claim 4, wherein the front mold base is made of acrylic material and the rear mold base is made of acrylic material.
9. The injection mold for the environment-friendly aspherical resin lenses according to claim 4, wherein the front mold of the pre-polished mold core is formed by hot bending, ceramic sintering or inorganic injection molding; the back mould of the pre-polishing mould core adopts hot bending forming, ceramic sintering forming or inorganic injection molding.
10. The injection mold of claim 4, wherein the front mold of the pre-polishing mold core is formed by hot bending, and the rear mold of the pre-polishing mold core is formed by hot bending.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321316840.XU CN219926770U (en) | 2023-05-26 | 2023-05-26 | Environment-friendly aspherical resin lens injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321316840.XU CN219926770U (en) | 2023-05-26 | 2023-05-26 | Environment-friendly aspherical resin lens injection mold |
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| CN219926770U true CN219926770U (en) | 2023-10-31 |
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| CN202321316840.XU Active CN219926770U (en) | 2023-05-26 | 2023-05-26 | Environment-friendly aspherical resin lens injection mold |
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