CN101428477A - Contact lens molding method and mould - Google Patents
Contact lens molding method and mould Download PDFInfo
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- CN101428477A CN101428477A CNA200710169514XA CN200710169514A CN101428477A CN 101428477 A CN101428477 A CN 101428477A CN A200710169514X A CNA200710169514X A CN A200710169514XA CN 200710169514 A CN200710169514 A CN 200710169514A CN 101428477 A CN101428477 A CN 101428477A
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Abstract
The invention relates to a method for shaping contact lenses and a mould, particularly a method which can use simple moulds for forming the contact lenses. The method comprises the following steps: placing the contact lens material in a die cavity of a mould; then, using the mould of an auxiliary appliance to press the lens material in the die cavity; causing the lens material to spread and extend along an arc surface of a die cavity and a mould; pushing excessive materials and overflowing out of the corner cut edge; proving the retained surface at the outer part of the mould for jointing the corner cut edge; removing the excessive materials; solidifying and treating the lens material in the mould; jointing the lens material on the surface of the mould of the auxiliary appliance; shaping glasses of the contact lenses after testing; packaging after injecting buffer solution in the appliance space of the outer part of the mould of an auxiliary appliance; and manufacturing products for selling. The contact lens has the advantages that the manufacturing procedure is simple and fast; and the purposes for saving labor and time, reducing the manufacturing cost, and keeping with the economic effect can be achieved.
Description
Technical field
The present invention relates to a kind of forming method and mould of contact lenses, You Zhike utilizes simple die to carry out contact lenses moulding, method for processing, utilize auxiliary implement to cooperate the processing operation with mould, make contact lenses can supply to sell attached to encapsulating in the auxiliary implement, and can shorten procedure for processing, reach and save time and saving of labor's purpose.
Background technology
Eyeglass directly is worn over idea on the eyes, proposed by Vinci, da as far back as 1508, and 1636 Descartes (RENE Descartes) close suggestion is also arranged, and in 1887, successfully produce first contact lenses by Germany scientist Adolf Eugen Fick, but, cause illness in eye such as keratitis easily because its oxygen transmission rate is low excessively; 1938 of modern age, Mullen and Obring then by using PMMA to be material, produce the contact lenses of the first secondary all-plastic; And the Obring that was positioned at the USA New York in 1940 develops the contact lenses of all-plastic formula with the Plexiglass of acryl; And in Czech chemist Otto Wichterle invention soft contact lens in 1961; And at release gas permeability hard contact lens (Rigid Gas-permeable in 1970, RGP), its diameter little (about 9mm) is again high oxygen flow material, is the desirable selection of contact lenses hobby person, therefore, even to this day existing more than 100,002,000 ten thousand the population that surpasses all used contact lenses, and along with progress, the near-sighted population in science and technology epoch grows with each passing day, the number of wearing glasses is linearly formula rising especially, and is also just more and more many for the demand of contact lenses.
At present for the contact lenses manufacture method, be broadly divided into three kinds, comprise turning method (Lathe Cutting), die casting (Cast Molding) and revolve modulus method methods such as (Spin Casting), no matter but be which kind of manufacture, after contact lenses are made moulding, all must earlier eyeglass be immersed in the buffer solution, make the softening contact lenses box body of being put into again of eyeglass, perhaps the eyeglass of contact lenses is packed for selling, then in the process of making, there are many disappearances and inconvenience, for example:
The manufacture of (1) turning method, must in glass tube, inject liquid material, make it behind high warm hardening, through the circular shape tablet of round cut, and through turning, edging and polishing, eyeglass is immersed in makes it softening in the buffer solution again, processing procedure is loaded down with trivial details, consuming time takes a lot of work, promptly become defective products as if makeing mistakes, can't continue processing procedure, the fraction defective of product is improved in arbitrary step.
(2) die casting rule is that liquid material is injected in the middle of two moulds, utilize the pressing of two moulds, again with the heating, hyperthermic treatment, make the liquid material sclerosis, after edging, polishing, ability is soaked in eyeglass and makes it softening in the buffer solution again, to carry out follow-up package handling, but the manufacture process time is long, treatment step is loaded down with trivial details, also consuming time taking a lot of work, and the processing procedure procedure of processing is many, the product fraction defective is promoted, and relative also improves manufacturing cost.
(3) revolving modulus method is that liquid material is injected revolving system mirror optical mode, and by make the centrifugal force that the mirror optical mode is produced when rotating, liquid material is dispersed on the system mirror optical mode inwall uniformly, and via ultraviolet light irradiation, make liquid material sclerosis and take shape in the mould, and still pass through edging, polishing, again eyeglass is immersed in and makes it softening in the buffer solution, after eyeglass absorbs buffer solution, produce and expand, can break away from mould and finish the making flow process, its processing procedure quite bothers, inconvenience, system mirror optical mode cost height, must the professional operate, and easily the generation rotation is unstable, and makes eyeglass produce situation in uneven thickness, the lens light axis eccentric phenomena, influence the optical quality of eyeglass, then the product fraction defective also can promote.
(4) aforesaid various manufacturing contact lenses method, all must have particular manufacturing craft, and eyeglass is after sclerosis, all need to pass through again follow-up processing operations such as edging, polishing, and make the manufacturing process degree of difficulty improve, relatively cause the fraction defective of product to promote, for the quality of eyeglass, stability etc., direct influence is all arranged, the manufacturing cost of contact lenses can't be reduced always.
The manufacture method of above-mentioned existing contact lenses, must use particular manufacturing craft, and need just can finish the eyeglass manufacturing through soaking steps such as buffer solution, edging, polishing again, so that cause that long processing time, procedure of processing are loaded down with trivial details, the easy problem such as lifting of product fraction defective, need be improved in fact, this is the inventor and the target place of being engaged in this journey improvement that the dealer desires most ardently.
Summary of the invention
Main purpose of the present invention is to overcome the deficiencies in the prior art and defective, at contact lenses during in processing and manufacturing, ocular lens material is inserted in the die cavity of mould, utilizing auxiliary implement to cooperate again is pressed into, and ocular lens material is spread toward the top along the arc surface of die cavity and module, extend, and support the material removal that applying corner cut rim will overflow by the supporting surface of module-external, then can be cured processing to material, for fitting in the auxiliary implement surface, and be shaped to eyeglass again via being contact lenses after the check, inject buffer solution in the space of auxiliary implement again, and externally encapsulate, and make commodity jointly by auxiliary implement and eyeglass, can be for selling, the processing procedure of contact lenses is simple and easy, fast, reach and save time and the saving of labor, reduce manufacturing cost, the purpose that meets economic benefit.
Secondary objective of the present invention is, if desire is made colorful contact lens, can attach figure line pigment on the steel plate by bat printing glue head, again by the transfer printing of bat printing glue head in the die cavity of mould, after then the die cavity of mould is inserted the contact lenses material, utilize the auxiliary implement making of pressurizeing, promptly may be molded to the eyeglass of colored contact lenses.
A further object of the present invention is, this mould has die cavity, and in the corner cut rim of die cavity outer periphery formation tip shape, and with respect to the die cavity of mould, then be provided with module at auxiliary implement, for can cooperate in the die cavity that is pressed into mould and module-external periphery for being provided with the supporting surface of inclined plane shape, can cooperate the corner cut edge of mould to support relatively, module-external in auxiliary implement is provided with the utensil space again, utilize film to cover the back encapsulation in the outer enclosure plane after can filling in buffer solution, make auxiliary implement become processing apparatus and packaging material simultaneously, reduce the eyeglass following process, flow package, and can effectively shorten worker the time, quite save time, the saving of labor, and can reduce manufacturing cost to meet economic benefit.
For reaching above-mentioned purpose, the invention provides a kind of forming method of contact lenses, You Zhike does not need the demoulding promptly to carry out the method for following process flow process after the contact lenses moulding, and its processing steps is:
(A) contact lens material is inserted in the die cavity of mould;
(B) die cavity of mould can be pressed into the module cooperation for auxiliary implement;
(C) utilize module to compress the interior ocular lens material of die cavity, and make ocular lens material spread toward the top, extend, and unnecessary ocular lens material is pushed out outside the corner cut rim along the arc surface of die cavity and module;
(D) by the peripheral corner cut rim of die cavity, can support applying for the supporting surface of module-external,
Further will overflow a little ocular lens material excision, the separation of corner cut rim outside, form clout;
(E) ocular lens material in the mould is cured routine processes;
(F) mould and auxiliary implement are separated, the ocular lens material of curing promptly fits in the module surface of auxiliary implement, and is shaped to eyeglass, and the clout of excision then is retained in the corner cut rim place of die cavity;
(G) with the eyeglass in the auxiliary implement via check after, be shaped to contact lenses, inject buffer solution again in the module-external utensil space of auxiliary implement;
(H) encapsulate in the outside, utensil space of auxiliary implement;
(I) auxiliary implement and eyeglass are made commodity jointly.
For reaching above-mentioned purpose, the present invention also provides a kind of mould of contact lenses, You Zhike does not need the demoulding promptly to carry out the mould of following process flow process after the contact lenses moulding, comprise mould and auxiliary implement, wherein: this mould have can ccontaining contact lens material die cavity, and form the corner cut rim of tip shape in the die cavity outer periphery; This auxiliary implement is to be provided with the module that can cooperate in the die cavity that is pressed into mould, and the module-external periphery is for being provided with the supporting surface of inclined plane shape, and having the utensil space that can fill in buffer solution in module-external, outside, utensil space then forms and can cover the encapsulation plane of back encapsulation for film.
Description of drawings
Fig. 1 is a three-dimensional exploded view of the present invention;
Fig. 2 is a side-looking decomposing section of the present invention;
Fig. 3 is a side cutaway view of the present invention;
Fig. 4 is the side-looking decomposing section of mould of the present invention and auxiliary implement;
Fig. 5 injects the side cutaway view of buffer solution for auxiliary implement of the present invention;
Fig. 6 is the packaged type side cutaway view of auxiliary implement of the present invention;
Fig. 7 is the three-dimensional exploded view of bat printing glue head of the present invention and steel plate;
Fig. 8 is the side-looking exploded view of bat printing glue head of the present invention and mould;
Fig. 9 is the side-looking decomposing section behind the bat printing glue head bat printing of the present invention;
Figure 10 is the side cutaway view of preferred embodiment of the present invention;
Figure 11 is the side cutaway view of preferred embodiment mould of the present invention and auxiliary implement;
Figure 12 is the side-looking decomposing section of preferred embodiment mould of the present invention and auxiliary implement;
Figure 13 injects the side cutaway view of buffer solution for preferred embodiment auxiliary implement of the present invention;
Figure 14 is the packaged type side cutaway view of preferred embodiment auxiliary implement of the present invention.
Symbol description among the figure
1 mould
11 die cavitys 12 are in conjunction with convex body
111 corner cut rims, 13 open-works
2 auxiliary implements
21 modules, 23 encapsulation planes
211 supporting surfaces, 24 platysomes
22 utensil spaces
3 ocular lens materials
31 eyeglasses, 33 colour lens
32 clouts
4 buffer solutions
5 films
6 bat printing glue heads
61 steel plates, 62 figure line pigment
The specific embodiment
For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure thereof illustrate in detail that with regard to preferred embodiment of the present invention its feature and function are as follows, in conjunction with the accompanying drawings in order to understanding fully.
See also shown in Fig. 1,2,3, be three-dimensional exploded view of the present invention, side-looking decomposing section, side cutaway view, find out by knowing shown in the figure, the forming method of contact lenses of the present invention and mould include mould 1, auxiliary implement 2, wherein:
This mould 1 inside is concaved with die cavity 11, and die cavity 11 to be circular arc planar, and form the corner cut rim 111 of tip shape, and in the periphery of corner cut rim 111 in the top outer peripheral edges, then be equipped with a plurality of microprotrusion shapes in conjunction with convex body 12; Also can be provided with and to be the open-work 13 that runs through for injecting gas in this mould 1 ring limit, the setting of its open-work 13 only need be avoided die cavity 11, and this mould 1 other position all can be provided with beyond die cavity 11, and this open-work 13 also can be set on the mould 1, then can whether this open-work 13 be set according to the decision of user's demand, above-mentioned simple and easy modification and equivalent structure change, and all should in like manner be contained in the claim of the present invention.
This auxiliary implement 2 is inner for convexing with module 21, module 21 is circular-arc, and in the top outer peripheral edges is to be provided with skewed supporting surface 211, and in the module 21 outside utensil spaces 22 that form, be provided with encapsulation plane 23 in utensil space 22 external rings again, being stretched out by side seal dress plane 23 is provided with platysome 24 again.
Above-mentioned each member is when using, can in the die cavity 11 of mould 1, insert contact lens material 3, be pressed into module 21 cooperations of die cavity 11 again for auxiliary implement 2, utilize the relative pressing of die cavity 11 and module 21, make ocular lens material 3 along die cavity 11, the arc surface of module 21 is diffusion upwards, extend, and unnecessary ocular lens material 3 is clamp-oned outside the corner cut rim 111 at die cavity 11 tops, and be coated in conjunction with outside the convex body 12, and corner cut rim 111 supports applying with the supporting surface 211 at module 21 tops again, promptly utilize corner cut rim 111, the ocular lens material 3 that will overflow die cavity 11 tops is excised, unnecessary ocular lens material 3 constipations are combined in conjunction with on the convex body 12, and can be by heating, hyperthermic treatment makes ocular lens material 3 polymerizing curables in the die cavity 11, to be shaped to eyeglass 31, and auxiliary implement 2 separated (please consulting shown in Figure 4 simultaneously) with mould 1, eyeglass 31 is fitted on module 21 arc-shaped surface of auxiliary implement 2, then after handling through check, can in the utensil space 22 of module 21 outsides, inject buffer solution 4 (please consulting shown in Figure 5 simultaneously), and on the encapsulation plane 23 of 22 outsides, utensil space, utilize simultaneously film 5 fitted (please consulting shown in Figure 6 simultaneously), and utilize the heated sealant mode, film 5 covers are enclosed on the encapsulation plane 23, carry out autoclave sterilization again, promptly finish contact lenses and make.
Contact lenses processing procedure of the present invention, only need utilize mould 1 to do the pressing action that repeats one by one for a plurality of auxiliary implements 2, eyeglass 31 can be molded in the auxiliary implement 2, after the dry plate check, and directly fill buffer solution 4, carry out the package sterilization again, the processing procedure of contact lens 31 is shortened, manufacture process is quick, simple and easy, save time and the processing procedure of saving of labor, reduction following process, packing, and can effectively promote the product yield, reduces manufacturing cost, to meet economic benefit.
Aforementioned ocular lens material 3 in making mould 1 solidifies to be handled, and can utilize modes such as ultraviolet (UV) irradiation, heat treated, for solidifying behind the ocular lens material 3 polymerization luminous energy; Ocular lens material 3 can be hydrogel or tool ultraviolet (UV) solidifies the material of material, heat cure material; Moreover auxiliary implement 2 packaged film 5 on encapsulation plane 23, can be aluminium foil, glued membrane etc., but the film 5 of heat supply encapsulation.
In addition, the arc-shaped surface of aforesaid auxiliary implement 2 its modules 21, can handle to increase the compatibility that it is adhered to by ocular lens material 3 through processing, and the processing processing can be adopted various Surface Machining operations such as corona (Corona) processing, flame treatment or UV processing, increases the surface of module 21 and the compatibility of ocular lens material 3.
See also shown in Fig. 2,3,4,5,6, be the side-looking decomposing section of side-looking decomposing section of the present invention, side cutaway view, mould and auxiliary implement, the side cutaway view of auxiliary implement injection buffer solution, the packaged type side cutaway view of auxiliary implement, and find out by knowing shown in each figure, contact lenses forming method of the present invention, the flow process that can make by following steps the steps include:
Step (100) is inserted in the die cavity 11 of mould 1 earlier with contact lens material 3.
The die cavity 11 of step (101) by mould 1 cooperates with module 21 for auxiliary implement 2 to be pressed into, to the ocular lens materials 3 in the die cavity 11 push, pressing.
During the ocular lens material 3 of step (102) in module 21 compresses die cavity 11, and can make ocular lens material 3 along the arc surface of die cavity 11, module 21 toward the top diffusion, extend, and unnecessary ocular lens material 3 is pushed out corner cut rim 111 outsides.
Step (103) can support applying for the supporting surface 211 of module 21 outsides by the corner cut rim 111 of die cavity 11 peripheries, further will overflow a little ocular lens material 3 of corner cut rim 111 outsides, is excised, separates, and forms clout 32.
Step (104) is cured routine processes to the ocular lens material 3 in the die cavity 11 of mould 1, can utilize modes such as ultraviolet (UV) irradiation, heat treated, solidifies for ocular lens material 3 carries out photopolymerization.
Step (105) is separated mould 1 and auxiliary implement 2, and make the ocular lens material 3 of curing, promptly fit in module 21 surfaces of auxiliary implement 2, and be shaped to eyeglass 31,32 of the clouts of excision are retained in corner cut rim 111 places of die cavity 11, and overlay in conjunction with on the convex body 12 in conjunction with cover.
Step (106) promptly is shaped to contact lenses after the eyeglass in the auxiliary implement 2 31 is tested, and injects buffer solution 4 again in the utensil space 22 of module 21 outsides of auxiliary implement 2, can make eyeglass 31 softening.
Step (107) is on the encapsulation plane 23 of 22 outsides, utensil space of auxiliary implement 2, and attaching film 5 carries out packaging operation.
Step (108) is promptly made commodity by auxiliary implement 2 and eyeglass 3 at last jointly, can sell for the consumption market.
In the aforesaid contact lenses procedure of processing flow process, heating, hyperthermic treatment for the ocular lens material 3 that makes in the mould 1 solidifies can utilize modes such as ultraviolet (UV) irradiation, heat treated, for solidifying behind the ocular lens material 3 polymerization luminous energy; And ocular lens material 3 can be hydrogel or tool ultraviolet (UV) solidifies the material of material, heat cure material; Moreover auxiliary implement 2 is packaged film 5 on encapsulation plane 23, can be aluminium foil, tinfoil paper, glued membrane etc., but the film 5 of heat supply encapsulation.
In addition, the arc-shaped surface of auxiliary implement 2 its modules 21 of abovementioned steps, can handle to increase the compatibility that it is adhered to by ocular lens material 3 through processing, and the processing processing can be adopted various Surface Machining operations such as corona (Corona) processing, flame treatment or UV processing, increases the surface of module 21 and the compatibility of ocular lens material 3.
See also Fig. 7,8,9,10,11,12,13, shown in 14, three-dimensional exploded view for bat printing glue head of the present invention and steel plate, the side-looking exploded view of bat printing glue head and mould, side-looking decomposing section behind the bat printing glue head bat printing, the side cutaway view of preferred embodiment, the side cutaway view of preferred embodiment mould and auxiliary implement, the side-looking decomposing section of preferred embodiment mould and auxiliary implement, the preferred embodiment auxiliary implement injects the side cutaway view of buffer solution, the packaged type side cutaway view of preferred embodiment auxiliary implement, and find out by knowing shown in each figure, if desire to carry out the processing of colorful contact lens, the interpolation that can in process, add coloured pigment, and the manufacturing process of colorful contact lens, step then is:
Step (200) is printed figure line pigment 62 to the die cavity 11 of mould 1, can figure line pigment 62 be printed to the die cavity 11 of mould 1 in order to modes such as transfer printing, spray printings.
Step (201) is inserted contact lens material 3 in the die cavity 11 of mould 1 again, and is positioned at the central authorities of figure line pigment 62.
11 of the die cavitys of step (202) mould 1 can be pressed into module 21 cooperations for auxiliary implement 2.
Step (203) utilizes module 21 to compress ocular lens material 3 in the die cavity 11, and make ocular lens material 3 along the arc surface of die cavity 11 and module 21 toward the top diffusion, extend, and combine, and unnecessary ocular lens material 3 pushed out corner cut rim 111 outsides with figure line pigment 62.
Step (204) is again by die cavity 11 peripheral corner cut rims 111, can support applying for the supporting surface 211 of module 21 outsides, further will overflow a little ocular lens material 3 excision, the separation of corner cut rim 111 outsides, form clout 32, and make clout 32 be combined in corner cut rim 111 outer in conjunction with on the convex body 12.
Step (205) is cured routine processes to the ocular lens material 3 in the mould 1, can utilize modes such as ultraviolet (UV) irradiation, heat treated, carries out photopolymerization and solidifies for ocular lens material 3, figure line pigment 62.
Step (206) is separated mould 1 and auxiliary implement 2, the ocular lens material 3 that solidifies, module 21 surfaces that figure line pigment 62 promptly fits in auxiliary implement 2, and be shaped to colour lens 33, clout 32 through excision then is retained in corner cut rim 111 places of die cavity 11, solidify simultaneously be combined in outside in conjunction with on the convex body 12.
Via after checking, the moulding colorful contact lens injects buffer solution 4 to step (207) again in the module 21 outside utensil spaces 22 of auxiliary implement 2 with the colour lens in the auxiliary implement 2 33.
Step (208) utilizes film 5 to encapsulate on the encapsulation plane 23 of 22 outsides, utensil space of auxiliary implement 2.
Step (209) can be made commodity jointly with auxiliary implement 2 and colour lens 33, and can sell for the consumption market.
In the aforesaid colorful contact lens procedure of processing flow process, figure line pigment 62 utilizes the transfer printing mode to attach the figure line pigment 62 that is positioned on the steel plate 61 by a bat printing glue head 6, and the figure line pigment 62 that will be attached by bat printing glue head 6 is transferred in the die cavity 11 of mould 1 again; Also can be with figure line pigment 62 by presetting the direct spray printing of jet printing appts to the die cavity 11 of mould 1; In addition, also can be after ocular lens material 3 be cured routine processes, figure line pigment 62 is printed to the surface of ocular lens material 3 in modes such as transfer printing, spray printings.
Heating, hyperthermic treatment for the ocular lens material 3 that makes in the mould 1 solidifies can utilize ultraviolet (UV) irradiation, heat treated, supply to solidify behind the ocular lens material 3 polymerization luminous energy etc. mode; And ocular lens material 3 can be hydrogel or tool ultraviolet (UV) solidifies the material of material, heat cure material; Moreover auxiliary implement 2 is packaged film 5 on encapsulation plane 23, can be aluminium foil, glued membrane etc., but the film 5 of heat supply encapsulation.
In addition, the arc-shaped surface of auxiliary implement 2 its modules 21 of abovementioned steps, can handle to increase the compatibility that it is adhered to by ocular lens material 3 through processing, and the processing processing can be adopted various Surface Machining operations such as corona (Corona) processing, flame treatment or UV processing, increases the surface of module 21 and the compatibility of ocular lens material 3.
Moreover, the forming method of the contact lenses of the invention described above and mould, because of utilizing the processing that cooperates of mould 1 and auxiliary implement 2, the ocular lens material 3 that will be positioned at mould 1 is squeezed into circular-arc, handle through heat temperature raising again, can make the curing of ocular lens material 3 optically focused and be shaped to eyeglass 31 by ultraviolet (UV) irradiation, and eyeglass 31 is incorporated in the auxiliary implement 2, and after in auxiliary implement 2, injecting buffer solution 4, encapsulated again and be shaped to commodity, reach processing procedure fast and reduce following process, the embodiment of packing processing procedure, but, the above only is preferred embodiment of the present invention, and is non-so promptly limit to claim of the present invention, utilizes auxiliary implement 2 to cooperate the eyeglass 3 of moulds 1 shaping contact lenses, can reach eyeglass 31 is molded directly within the auxiliary implement 2, the function that can directly Gong sell so use specification of the present invention and the simple and easy for it modification of institute of accompanying drawing content and equivalent structure to change such as, all should in like manner be contained in the claim of the present invention.
The forming method of the invention described above contact lenses and mould have following advantage when reality is used, as:
(1) utilize mould 1 to cooperate auxiliary implement 2, carry out pressing ocular lens material 3, and shine through ultraviolet (UV), and ocular lens material 3 optically focused are solidificated in the auxiliary implement 2, and be shaped to eyeglass 31 (or colour lens 33), then can inject buffer solution 4 in auxiliary implement 2, be encapsulated and promptly make commodity, processing procedure is simple and easy, quick, effectively reduce manufacturing cost, promote the yield of product.
(2) auxiliary implement 2 of the present invention can become packaging material, and not need to utilize packaging material to pack in addition again after eyeglass 31 (or colour lens 33) moulding, reaches auxiliary implement 2 as packaging material, and effectively reduces manufacturing cost.
(3) die cavity 11 peripheries of mould 1 are provided with in conjunction with convex body 12, and when 2 extruding of mould 1 and auxiliary implement, when cooperating, ocular lens material 3 overflows die cavity 11 outside formed clouts 32, be cover in conjunction with convex body 12, and utilization is adhered to clout 32 in conjunction with convex body 12 and is solidified combination, make clout 32 easy and eyeglass 31 (or colour lens 33) formation disengagings, can avoid clout 32 to infiltrate again in the die cavity 11, the also unlikely eyeglass 31 (or colour lens 33) that influences moulding.
Therefore; the present invention is the manufacture method that is primarily aimed at contact lenses; can utilize auxiliary implement to cooperate mould pressing and forming eyeglass is main key protection point; only make auxiliary implement after molded lenses; can in forming the auxiliary implement of eyeglass, inject buffer solution and encapsulate; and reach the advantage that can directly sell; but; the above only is preferred embodiment of the present invention; non-so promptly limit to claim of the present invention; so use simple and easy for it modification of institute of specification of the present invention and accompanying drawing content and equivalent structure to change such as, all should in like manner be contained in the claim of the present invention.
Claims (21)
1. the forming method of contact lenses, You Zhike does not need the demoulding promptly to carry out the method for following process flow process after the contact lenses moulding, it is characterized in that this processing steps is:
(A) contact lens material is inserted in the die cavity of mould;
(B) die cavity of mould can be pressed into the module cooperation for auxiliary implement;
(C) utilize module to compress the interior ocular lens material of die cavity, and make ocular lens material spread toward the top, extend, and unnecessary ocular lens material is pushed out outside the corner cut rim along the arc surface of die cavity and module;
(D) by the peripheral corner cut rim of die cavity, can support applying for the supporting surface of module-external, further will overflow a little ocular lens material excision, the separation of corner cut rim outside, form clout;
(E) ocular lens material in the mould is cured routine processes;
(F) mould and auxiliary implement are separated, the ocular lens material of curing promptly fits in the module surface of auxiliary implement, and is shaped to eyeglass, and the clout of excision then is retained in the corner cut rim place of die cavity;
(G) with the eyeglass in the auxiliary implement via check after, be shaped to contact lenses, inject buffer solution again in the module-external utensil space of auxiliary implement;
(H) encapsulate in the outside, utensil space of auxiliary implement;
(I) auxiliary implement and eyeglass are made commodity jointly.
2. the forming method of contact lenses according to claim 1, wherein, this mould is in the corner cut rim place of die cavity outside, be provided with a plurality of convex in conjunction with convex body, and be provided with and can be the open-work that runs through for injecting gas in its ring limit.
3. as the forming method of contact lenses as described in the claim 2, wherein, this is centered around the die cavity outer periphery in the form of a ring in conjunction with convex body.
4. the forming method of contact lenses according to claim 1, wherein, this ocular lens material can be hydrogel.
5. the forming method of contact lenses according to claim 1, wherein, this auxiliary implement is handled for carrying out Surface Machining in the arc surface of module, and the compatibility of hoisting module arc surface and ocular lens material, and the Surface Machining processing can be various surface treatment methods such as corona processing, flame treatment, U V processing.
6. the forming method of contact lenses according to claim 1, wherein, the program curing of this ocular lens material is handled, and can be various program curing processing operations such as utilizing ultraviolet light irradiation, heat treated.
7. the forming method of contact lenses according to claim 1, wherein, the outside, utensil space of this auxiliary implement can utilize aluminium foil, glued membrane etc. to add the packaging operation of heat sealing.
8. the forming method of contact lenses, You Zhike does not need the demoulding promptly to carry out the method for following process flow process after the colorful contact lens moulding, it is characterized in that this processing steps is:
(A) figure line pigment is printed to the die cavity of mould;
(B) contact lens material is inserted in the die cavity of mould;
(C) die cavity of mould can be pressed into the module cooperation for auxiliary implement;
(D) utilize module to compress the interior ocular lens material of die cavity, and make ocular lens material spread toward the top, extend, and combine, and unnecessary ocular lens material is pushed out outside the corner cut rim with figure line pigment along the arc surface of die cavity and module;
(E) by the peripheral corner cut rim of die cavity, can support applying for the supporting surface of module-external, further will overflow a little ocular lens material excision, the separation of corner cut rim outside, form clout;
(F) ocular lens material in the mould is cured routine processes;
(G) mould and auxiliary implement are separated, the ocular lens material of curing, figure line pigment are promptly fitted
In the module surface of auxiliary implement, and be shaped to colour lens, the clout of excision then is retained in mould
The corner cut rim place in cave;
(H) with the colour lens in the auxiliary implement via check after, the moulding colorful contact lens injects buffer solution again in the module-external utensil space of auxiliary implement;
(I) encapsulate in the outside, utensil space of auxiliary implement;
(J) auxiliary implement and eyeglass are made commodity jointly.
9. as the forming method of contact lenses as described in the claim 8, wherein, this mould is in the corner cut rim place of die cavity outside, be provided with a plurality of convex in conjunction with convex body, and be provided with and can be the open-work that runs through for injecting gas in its ring limit.
10. as the forming method of contact lenses as described in the claim 9, wherein, this is centered around the die cavity outer periphery in the form of a ring in conjunction with convex body.
11. as the forming method of contact lenses as described in the claim 8, wherein, this ocular lens material can be hydrogel.
12. forming method as contact lenses as described in the claim 8, wherein, this auxiliary implement is handled for carrying out Surface Machining in the arc surface of module, and the compatibility of hoisting module arc surface and ocular lens material, and the Surface Machining processing can be various surface treatment methods such as corona processing, flame treatment, U V processing.
13. as the forming method of contact lenses as described in the claim 8, wherein, the program curing of this ocular lens material is handled, and can be various program curing processing operations such as utilizing ultraviolet light irradiation, heat treated.
14. as the forming method of contact lenses as described in the claim 8, wherein, the outside, utensil space of this auxiliary implement can utilize film to heat packaging operation, and film can be aluminium foil, glued membrane etc.
15. as the forming method of contact lenses as described in the claim 8, wherein, this figure line pigment can utilize the transfer printing mode to attach the figure line pigment that is positioned on the steel plate by a bat printing glue head, the figure line pigment that will be attached by bat printing glue head is transferred in the die cavity of mould again.
16. as the forming method of contact lenses as described in the claim 8, wherein, this figure line pigment can utilize the default direct spray printing of jet printing appts to the die cavity of mould.
17. the mould of contact lenses, You Zhike do not need the demoulding promptly to carry out the mould of following process flow process after the contact lenses moulding, comprise mould and auxiliary implement, it is characterized in that:
This mould have can ccontaining contact lens material die cavity, and form the corner cut rim of tip shape in the die cavity outer periphery;
This auxiliary implement is provided with the module that can cooperate in the die cavity that is pressed into mould, and the module-external periphery is for being provided with the supporting surface of inclined plane shape, and having the utensil space that can fill in buffer solution in module-external, outside, utensil space then forms and can cover the encapsulation plane of back encapsulation for film.
18. as the mould of contact lenses as described in the claim 17, wherein, this mould is in the corner cut rim place of die cavity outside, be provided with a plurality of convex in conjunction with convex body, and be provided with and can be the open-work that runs through for injecting gas in its ring limit.
19. as the mould of contact lenses as described in the claim 18, wherein, this is centered around the die cavity outer periphery in the form of a ring in conjunction with convex body.
20. as the mould of contact lenses as described in the claim 17, wherein, this ocular lens material can be hydrogel.
21. mould as contact lenses as described in the claim 17, wherein, this auxiliary implement can carry out Surface Machining in the arc surface of module to be handled, and the compatibility of hoisting module arc surface and ocular lens material, and the Surface Machining processing can be various surface treatment methods such as corona processing, flame treatment, U V processing.
22. as the mould of contact lenses as described in the claim 17, wherein, the encapsulation plane of the outside, utensil space of this auxiliary implement can utilize that films such as aluminium foil, glued membrane heat, the packaging operation of involution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710169514XA CN101428477A (en) | 2007-11-08 | 2007-11-08 | Contact lens molding method and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710169514XA CN101428477A (en) | 2007-11-08 | 2007-11-08 | Contact lens molding method and mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101428477A true CN101428477A (en) | 2009-05-13 |
Family
ID=40644221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710169514XA Pending CN101428477A (en) | 2007-11-08 | 2007-11-08 | Contact lens molding method and mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101428477A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791864A (en) * | 2010-03-16 | 2010-08-04 | 江苏海伦隐形眼镜有限公司 | Multi-functional soft contact lens mould |
| CN102574343A (en) * | 2009-09-22 | 2012-07-11 | 库柏维景国际控股公司 | Wettable hydrogel materials for use in ophthalmic applications and methods |
| CN103465410A (en) * | 2012-06-06 | 2013-12-25 | 视霸光学股份有限公司 | Ultrasonic demoulding device and method for using ultrasonic demoulding device to make contact lens |
| CN104339674A (en) * | 2013-08-02 | 2015-02-11 | 格基实业股份有限公司 | Method for manufacturing colored contact lenses |
| CN105563861A (en) * | 2014-10-13 | 2016-05-11 | 奇鼎科技股份有限公司 | Hydration-free processing for contact lens |
| CN107263894A (en) * | 2012-06-29 | 2017-10-20 | 庄臣及庄臣视力保护公司 | Lens precursor with the feature structure for manufacturing ophthalmic lens |
| CN114670374A (en) * | 2022-04-08 | 2022-06-28 | 成都希瑞方晓科技有限公司 | Forming die for sealing rubber cap |
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2007
- 2007-11-08 CN CNA200710169514XA patent/CN101428477A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574343A (en) * | 2009-09-22 | 2012-07-11 | 库柏维景国际控股公司 | Wettable hydrogel materials for use in ophthalmic applications and methods |
| CN102574343B (en) * | 2009-09-22 | 2015-04-22 | 库柏维景国际控股公司 | Wettable hydrogel materials for use in ophthalmic applications and methods |
| CN101791864A (en) * | 2010-03-16 | 2010-08-04 | 江苏海伦隐形眼镜有限公司 | Multi-functional soft contact lens mould |
| CN101791864B (en) * | 2010-03-16 | 2013-04-03 | 江苏海伦隐形眼镜有限公司 | Multi-functional soft contact lens mould |
| CN103465410A (en) * | 2012-06-06 | 2013-12-25 | 视霸光学股份有限公司 | Ultrasonic demoulding device and method for using ultrasonic demoulding device to make contact lens |
| CN103465410B (en) * | 2012-06-06 | 2015-12-09 | 视霸光学股份有限公司 | Ultrasonic stripper apparatus and be applied to and manufacture the method for contact lenses |
| CN107263894A (en) * | 2012-06-29 | 2017-10-20 | 庄臣及庄臣视力保护公司 | Lens precursor with the feature structure for manufacturing ophthalmic lens |
| CN104339674A (en) * | 2013-08-02 | 2015-02-11 | 格基实业股份有限公司 | Method for manufacturing colored contact lenses |
| CN105563861A (en) * | 2014-10-13 | 2016-05-11 | 奇鼎科技股份有限公司 | Hydration-free processing for contact lens |
| CN114670374A (en) * | 2022-04-08 | 2022-06-28 | 成都希瑞方晓科技有限公司 | Forming die for sealing rubber cap |
| CN114670374B (en) * | 2022-04-08 | 2023-10-24 | 成都希瑞方晓科技有限公司 | Sealing rubber cap forming die |
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