CN105150442B - The mold of contact lenses - Google Patents
The mold of contact lenses Download PDFInfo
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- CN105150442B CN105150442B CN201510546435.0A CN201510546435A CN105150442B CN 105150442 B CN105150442 B CN 105150442B CN 201510546435 A CN201510546435 A CN 201510546435A CN 105150442 B CN105150442 B CN 105150442B
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- upper mold
- lower die
- chimeric
- mold
- chimeric surface
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Abstract
The present invention discloses a kind of mold of contact lenses, it includes have a upper mold and a lower die, the bottom surface of the upper mold sequentially has the convex optical surface for being symmetrical with an imagining center line by center around, one boundary convex surface, chimeric surface on one opposed concave and one, any point is D at a distance from the imagining center line on chimeric surface on this, the top surface of the lower die sequentially has the recessed optical surface for being symmetrical with the imagining center line by center around, one boundary convex surface, one first opposed concave and chimeric surface once, any point is d at a distance from the imagining center line on the lower chimeric surface, when on this, D when lower die not yet combines>D, when the upper and lower die combination, chimeric surface is devastatingly connected together with the lower chimeric surface on this, and therefore, which can be fixedly combined together, and then improves the yield of contact lenses production.
Description
Technical field
The present invention relates to a kind of mold, in particular to a kind of mold of contact lenses.
Background technique
The mold of general manufacture contact lenses, is engaged each other by a upper mold and a lower die, the upper mold and lower die it
Between there is a chamber, be poured into the chamber for a polymer material and by heating or illumination and curing molding, it is cured
Polymer material demoulding after, then via sofening treatment can become contact lens products.
However, above-mentioned polymer material in heating or During Illumination, can generate escaping gas, when evaporation rate is too fast
When, escaping gas is formed by air pressure and is just easy to push up upper mold, and upper mold is caused to shift, and not only influences connecing for upper and lower mould
It closes, also will cause the problem of lens deformation etc. causes yield to decline；To solve above-mentioned missing, some dealers can set by a fusion
The standby meromixis by upper and lower mould together, be fixedly combined upper and lower mould can and prevent escaping gas from upper mold being pushed to make it
Displacement etc..
There are still own shortcomings for right above structure：(1) fusion device is expensive so that production contact lenses at
Originally it greatly improves, after the solidification of (2) polymer material, upper and lower mould need to also be cut fusion site by a cutting equipment, be made up and down
Mould is separated to take out polymer material, therefore the manufacturing process of the contact lenses becomes cumbersome, and then influences production capacity.
In addition, such as the contact lens molds of TaiWan, China patent of invention the M487831st exposure, thereon, the mold of lower die
Manufacture it is more difficult with it is complicated, not only at high cost, scale error more often exceeds feasible value, when both upper and lower moulds scale error
When beyond feasible value, the engagement of upper and lower mould will receive influence, and the two is easy to produce bias, and then influence the good of production eyeglass
Rate.
Summary of the invention
In view of above-mentioned missing, the purpose of the present invention is to provide a kind of mold of contact lenses, Mold Making letters
It is single, and upper and lower mould rapidly and can be fixedly combined together and then improve the yield of contact lenses production, and can simplify the stealth
The manufacturing process of glasses enables the manufacturing cost of contact lenses entirety decline.
In order to achieve the above object, the present invention provides a kind of mold of contact lenses, it, should it includes having a upper mold and a lower die
Upper mold has an imagining center line, and the bottom surface of the upper mold is sequentially convex be symmetrical with the imagining center line one around by center
Optical surface, a boundary convex surface, chimeric surface on an opposed concave and one, on this on chimeric surface any point and the imagining center line away from
From for D；The top surface of the lower die sequentially has the recessed optical surface for being symmetrical with the imagining center line, a boundary convex around by center
Face, one first opposed concave and once chimeric surface, any point is d with the imagining center line at a distance from the lower chimeric surface；Wherein,
The D when the upper mold is not yet combined with the lower die>D, when the upper mold and the lower die combination, the convex optical surface and the recessed optical surface position
Set corresponding and be connected to the boundary convex surface of the lower die apart from one another by, the boundary convex surface of the upper mold, the opposed concave of the upper mold with should
First opposed concave position of lower die is corresponding and apart from one another by chimeric surface and the lower chimeric surface are devastatingly connected to one on this
It rises.
The present invention provides the mold of another contact lenses, and it includes having a upper mold and a lower die, which has one
The bottom surface of imagining center line, the upper mold sequentially has the convex optical surface for being symmetrical with the imagining center line, one by center around
Chimeric surface on boundary convex surface, an opposed concave and one, on this on chimeric surface any point and the imagining center line be equidistant for
D；The top surface of the lower die sequentially had around by center be symmetrical with a recessed optical surface of the imagining center line, a boundary convex surface,
One first opposed concave with once chimeric surface, the radius of the lower chimeric surface become d2, d2 from d1 from top to bottom>d1；Wherein, when this
D >=d2 when upper mold is not yet combined with the lower die, when the upper mold and the lower die combination, the convex optical surface and the recessed optical surface position
It is corresponding and be connected to the boundary convex surface of the lower die apart from one another by, the boundary convex surface of the upper mold, under the opposed concave of the upper mold and this
First opposed concave position of mould is corresponding and apart from one another by chimeric surface is devastatingly connected together with the lower chimeric surface on this.
The present invention also provides the molds of another contact lenses, and it includes having a upper mold and a lower die, which has
One imagining center line, the bottom surface of the upper mold sequentially had around by center be symmetrical with the imagining center line a convex optical surface,
Chimeric surface on one boundary convex surface, an opposed concave and one, radius of chimeric surface becomes D2, D1 from D1 from top to bottom on this>D2；It should
The top surface of lower die is sequentially had around by center is symmetrical with a recessed optical surface of the imagining center line, a boundary convex surface, one the
One opposed concave and once chimeric surface, any point is d with the imagining center line at a distance from the lower chimeric surface；Wherein, when on this
D2 >=d when mould is not yet combined with the lower die, when the upper mold and the lower die combination, the convex optical surface and the recessed optical surface position pair
It answers and apart from one another by the boundary convex surface of the upper mold is connected to the boundary convex surface of the lower die, the opposed concave of the upper mold and the lower die
The first opposed concave position it is corresponding and apart from one another by chimeric surface is devastatingly connected together with the lower chimeric surface on this.
Thereby, which not only makes simple and upper and lower mould and can rapidly and be fixedly combined together, and then improves stealthy
The yield of glasses production, and the manufacturing process of the contact lenses can be simplified, enable the manufacturing cost of contact lenses entirety decline.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
The assembled sectional view of Fig. 1 first embodiment of the invention；
The exploded sectional view of Fig. 2 first embodiment of the invention；
The partial sectional view of Fig. 3 first embodiment of the invention；
The partial sectional view of Fig. 4 second embodiment of the invention；
The partial sectional view of Fig. 5 third embodiment of the invention.
Wherein, appended drawing reference
201 top surface of mold of 1 contact lenses
The recessed optical surface of mold 21 of 1 ' contact lenses
22 lower bowls of portions of mold of 1 " contact lenses
10 upper mold, 23 boundary convex surface
The lower ring plate in 101 bottom surfaces 24
11 convex 25 first opposed concaves of optical surface
The lower chimeric surface in bowl portion 27 on 12
13 boundary convex surface, 28 second opposed concave
29 scalene cone of ring plate on 14
15 opposed concave C1 first chambers
Chimeric surface C2 second chamber on 17
19 scalene cone C3 third chambers
20 lower die L imagining center lines
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing：
The mold 1 of contact lenses provided by FIG. 1 to FIG. 3 first embodiment of the invention, it includes have a upper mold 10 and
One lower die 20.
The upper mold 10 have an imagining center line L, on one in bowl portion 12, one ring plate 14 be set to 12 apical margin of bowl portion on this, with
And one bottom surface 101 be located at bowl portion 12 on this, the bottom surface 101 of the upper mold 10 (i.e. from lower to upper) is sequentially had pair around by center
Claim the convex optical surface 11 in imagining center line L, a boundary convex surface 13, chimeric surface 17 and one on an opposed concave 15, one
Scalene cone 19, in addition to the convex optical surface 11, remaining is all annular in shape, any point and imagining center line L on chimeric surface 17 on this
Distance is D, also that is, chimeric surface 17 can be considered the part on a cylindrical surface on this.
The lower die 20 have bowl portion 22, once ring plate 24 is set to lower 22 apical margin of bowl portion and a top surface 201 and is located at
The lower bowl portion 22, the top surface 201 of the lower die 20 (i.e. from lower to upper) is sequentially had around by center is symmetrical with the imaginary centres
The recessed optical surface 21 of the one of line L, a boundary convex surface 23, one first opposed concave 25, once chimeric surface 27, one second opposed concave 28
And a scalene cone 29, in addition to the recessed optical surface 21, in all annular in shape, any point and the imaginary centres on the lower chimeric surface 27
The distance of line L is d, also that is, the lower chimeric surface 27 also can be considered the part on a cylindrical surface.
When the upper mold 10 is not yet combined with the lower die 20, chimeric surface 17 and imagining center line L distance D is greater than on this
The lower chimeric surface 27 and imagining center line L distance d, when the upper mold 10 is combined with the lower die 20, as shown in figure 3, this is convex
Optical surface 11 it is corresponding with recessed 21 position of optical surface and apart from one another by and formed a first chamber C1, C1 is to hold for the first chamber
The raw material of production contact lenses is set, the boundary convex surface 13 of the upper mold 10 is connected to the boundary convex surface 23 of the lower die 20, the upper mold 10
Opposed concave 15 it is corresponding with 25 position of the first opposed concave of the lower die 20 and apart from one another by and formed a second chamber C2, should
Second chamber C2 system is to accommodate by the first chamber C1 raw material overflowed or the volatility gas for being generated and being discharged by the raw material
Body, the upper chimeric surface 17 of the upper mold 10 are devastatingly connected together with the lower chimeric surface 27 of the lower die 20, the upper mold 10 it is oblique
Second opposed concave 28 of the conical surface 19 and the lower die 20 apart from one another by and form a third cavity C 3, the third cavity C 3 is to hold
The escaping gas for setting the raw material by first chamber C1 or second chamber C2 spilling or being generated and be discharged by the raw material,
The scalene cone 19 of the upper mold 10 simultaneously sticks to scalene cone 29 in the lower die 20, and the scalene cone 29 of the lower die 20 can be by the upper mold 10
Scalene cone 19 sticks to and guides the upper mold 10 and combine along imagining center line L with the lower die 20, in fact the oblique cone
Face 19 abuts mutually with the scalene cone 29, therefore the upper mold 10 and the lower die 20 imagining center line L having the same, and the upper mold
10 will not be eccentric relative to the lower die 20, and vice versa.
Above-mentioned destructiveness refers to that at least partial structurtes of chimeric surface 17 are combined by the upper and lower mould 10,20 on this
Active force (or pressure), and be embedded in at least partial structurtes of the lower chimeric surface 27, make the lower chimeric surface 27 slightly by this
Chimeric surface 17 destroys, and enables chimeric surface 17 on this that can be connected in the lower chimeric surface 27, and similarly, the lower chimeric surface 27 is at least
The active force (or pressure) that partial structurtes are combined by the upper and lower mould 10,20, and it is embedded on this chimeric surface 17 extremely
It in few partial structurtes, destroys chimeric surface 17 on this slightly by the lower chimeric surface 27, and enables the lower chimeric surface 27 that can be connected on this
In chimeric surface 17.Devastatingly mutually be connected together by chimeric surface 17 on this and the lower chimeric surface 27, the upper mold 10 with should
Lower die 20 can firmly be bonded together, even if in this way, the raw material being located in first chamber C1 is in heating or illumination
Escaping gas is generated in the process, and air pressure not will cause the upper mold 10 displacement and cause contact lenses production failure, and should
Escaping gas can be even accommodated in second chamber C2 or the third cavity C 3, or even by the gap between the upper and lower mould
Evolution, helps to reduce the pressure that the escaping gas acts on the upper mold 10.
It being designed by aforementioned structure, contact lens molds 1 provided by the invention not only make the simple and upper and lower mould 10,
20 can rapidly and be fixedly combined together, can effectively improve the yield of contact lenses production, and can simplify the contact lenses
Manufacturing process, compared to the prior art, because the group of mold need not can be completed by auxiliary such as other devices such as fusion devices again
It closes and separates, the cost of manufacture of contact lenses entirety can be enabled greatly to decline.
The mold 1 of spirit according to the present invention, the contact lenses can have other variations, as Fig. 4 present invention second is implemented
The mold 1 ' for the contact lenses that example provides, structure different from the first embodiment is, the lower chimeric surface 27 is relative on this
Slightly have deflection for chimeric surface 17, become larger the lower chimeric surface 27 from top to bottom at a distance from imagining center line L, illustrates
For, if the distance between lower 27 upper limb of chimeric surface and imagining center line L are d1, and lower 27 lower edge of chimeric surface and the vacation
Think that the distance between center line L is d2, then d2 is greater than d1, embedding on this moreover, when the upper mold 10 is not yet combined with the lower die 20
Conjunction face 17 and imagining center line L distance D will not be less than on the lower chimeric surface 27 between any point and imagining center line L
Distance (including d2), i.e. D >=d2, therefore when the upper mold 10 is combined with the lower die 20, the lower chimeric surface 27 and chimeric surface on this
17 are still connected together to destructibility, since chimeric surface 17 on this and the interference degrees of the lower chimeric surface 27 are passed from top to bottom
Subtract, by actual test, which can more securely be combined together by such structure relative to first embodiment.
The mold 1 " for the contact lenses that Fig. 5 third embodiment of the invention provides, structure different from the first embodiment exist
In chimeric surface 17 slightly has deflection for the lower chimeric surface 27 on this, makes chimeric surface 17 and imagining center line L on this
Distance is from top to bottom to gradually become smaller, for example, if the distance between the upper limb of chimeric surface 17 and imagining center line L on this
For D1, and the distance between lower edge of chimeric surface 17 and imagining center line L are D2 on this, then D1 is greater than D2, moreover, when on this
When mould 10 is not yet combined with the lower die 20, which is not more than chimeric surface on this with imagining center line L distance d
The distance between any point and imagining center line L (including D2) on 17, i.e. d≤D2, therefore when the upper mold 10 and the lower die 20
When combination, chimeric surface 17 is still connected together to destructibility with the lower chimeric surface 27 on this, due to chimeric surface 17 on this and is somebody's turn to do
The interference degrees of lower chimeric surface 27 are successively decreased from top to bottom, and by actual test, such structure can be more steady relative to first embodiment
Admittedly the upper and lower mould is combined together.
In addition, the structure of the mold can be further simplified, such as upper mold can not set scalene cone, and lower die can then omit the second phase
To concave surface with and scalene cone, when the upper and lower die combination, can using other positioning methods such as mechanical arm control a combination thereof precision
Degree.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (6)
1. a kind of mold of contact lenses, which is characterized in that include：
One upper mold has an imagining center line, and the bottom surface of the upper mold is sequentially had around by center is symmetrical with the imaginary centres
The convex optical surface of the one of line, a boundary convex surface, chimeric surface on an opposed concave and one, on this on chimeric surface in any point and the imagination
The distance of heart line is D；And
One lower die, top surface sequentially have the recessed optical surface for being symmetrical with the imagining center line, a boundary convex around by center
Face, one first opposed concave and once chimeric surface, any point is d with the imagining center line at a distance from the lower chimeric surface；
The D when the upper mold is not yet combined with the lower die>D, when the upper mold and the lower die combination, the convex optical surface and the recessed optics
Face position is corresponding and apart from one another by the boundary convex surface of the upper mold is connected to the boundary convex surface of the lower die, the opposed concave of the upper mold
It is corresponding with the first opposed concave position of the lower die and apart from one another by chimeric surface is devastatingly connected to the lower chimeric surface on this
Together.
2. a kind of mold of contact lenses, which is characterized in that include：
One upper mold has an imagining center line, and the bottom surface of the upper mold is sequentially had around by center is symmetrical with the imaginary centres
The convex optical surface of the one of line, a boundary convex surface, chimeric surface on an opposed concave and one, on this on chimeric surface in any point and the imagination
Heart line is equidistant as D；And
One lower die, top surface sequentially have the recessed optical surface for being symmetrical with the imagining center line, a boundary convex around by center
Face, one first opposed concave and once chimeric surface, the radius of the lower chimeric surface become d2, d2 from d1 from top to bottom>d1；
D >=d2 when the upper mold is not yet combined with the lower die, when the upper mold and the lower die combination, the convex optical surface and the recessed light
Face position is corresponding and is connected to the boundary convex surface of the lower die apart from one another by, the boundary convex surface of the upper mold, the upper mold it is relatively recessed
Face is corresponding with the first opposed concave position of the lower die and apart from one another by chimeric surface is devastatingly clamped with the lower chimeric surface on this
Together.
3. a kind of mold of contact lenses, which is characterized in that include：
One upper mold has an imagining center line, and the bottom surface of the upper mold is sequentially had around by center is symmetrical with the imaginary centres
The convex optical surface of the one of line, a boundary convex surface, chimeric surface on an opposed concave and one, radius of chimeric surface is from top to bottom by D1 on this
Become D2, D1>D2；And
One lower die, top surface sequentially have the recessed optical surface for being symmetrical with the imagining center line, a boundary convex around by center
Face, one first opposed concave and once chimeric surface, any point is d with the imagining center line at a distance from the lower chimeric surface；
D2 >=d when the upper mold is not yet combined with the lower die, when the upper mold and the lower die combination, the convex optical surface and the recessed light
Face position is corresponding and is connected to the boundary convex surface of the lower die apart from one another by, the boundary convex surface of the upper mold, the upper mold it is relatively recessed
Face is corresponding with the first opposed concave position of the lower die and apart from one another by chimeric surface is devastatingly clamped with the lower chimeric surface on this
Together.
4. the according to claim 1, mold of 2 or 3 contact lenses, which is characterized in that the upper mold has more a scalene cone position
In on this above chimeric surface, which up sequentially has more one second opposed concave and a scalene cone by the lower chimeric surface, when
The upper mold and when the lower die combination, the scalene cone of the upper mold and second opposed concave apart from one another by, the scalene cone of the upper mold and
Stick to the scalene cone in the lower die.
5. the according to claim 1, mold of 2 or 3 contact lenses, which is characterized in that the upper mold have one on bowl portion and
Ring plate is set to bowl portion apical margin on this on one, which is located at the bottom surface in bowl portion on this.
6. the according to claim 1, mold of 2 or 3 contact lenses, which is characterized in that the lower die have bowl portion and
Once ring plate is set to the lower bowl portion apical margin, which is located at the top surface in the lower bowl portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546435.0A CN105150442B (en) | 2015-08-31 | 2015-08-31 | The mold of contact lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546435.0A CN105150442B (en) | 2015-08-31 | 2015-08-31 | The mold of contact lenses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105150442A CN105150442A (en) | 2015-12-16 |
| CN105150442B true CN105150442B (en) | 2018-11-23 |
Family
ID=54791630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510546435.0A Active CN105150442B (en) | 2015-08-31 | 2015-08-31 | The mold of contact lenses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105150442B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372510A (en) * | 1999-09-03 | 2002-10-02 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN101326041A (en) * | 2005-12-12 | 2008-12-17 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN101563211A (en) * | 2006-10-30 | 2009-10-21 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN204222086U (en) * | 2014-06-23 | 2015-03-25 | 协诚钢模股份有限公司 | Buckle type contact lens mould |
| CN204914374U (en) * | 2015-08-31 | 2015-12-30 | 永胜光学股份有限公司 | Contact lens's mould |
-
2015
- 2015-08-31 CN CN201510546435.0A patent/CN105150442B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372510A (en) * | 1999-09-03 | 2002-10-02 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN101326041A (en) * | 2005-12-12 | 2008-12-17 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN101563211A (en) * | 2006-10-30 | 2009-10-21 | 庄臣及庄臣视力保护公司 | Molds for use in contact lens production |
| CN204222086U (en) * | 2014-06-23 | 2015-03-25 | 协诚钢模股份有限公司 | Buckle type contact lens mould |
| CN204914374U (en) * | 2015-08-31 | 2015-12-30 | 永胜光学股份有限公司 | Contact lens's mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105150442A (en) | 2015-12-16 |
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