CN210453431U - Glue injection mold for contact lenses - Google Patents
Glue injection mold for contact lenses Download PDFInfo
- Publication number
- CN210453431U CN210453431U CN201921433618.1U CN201921433618U CN210453431U CN 210453431 U CN210453431 U CN 210453431U CN 201921433618 U CN201921433618 U CN 201921433618U CN 210453431 U CN210453431 U CN 210453431U
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- vertical baffle
- mold
- lens
- depressed part
- injecting
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Abstract
The utility model discloses a contact lens injecting glue mould, but including the master model and the public mould of pressfitting on the master model, the master model includes the first depressed part at center, the edge periphery of first depressed part is provided with first vertical baffle portion, the top of first vertical baffle portion is provided with first horizontal annular portion, public mould includes the second depressed part at center, the edge periphery of second depressed part is provided with the vertical baffle portion of second, the top of the vertical baffle portion of second is provided with the horizontal annular portion of second, the horizontal annular portion of second is provided with the breach that can insert the elbow injecting glue needle, form the appearance chamber of pressfitting lens between first depressed part and the second depressed part. The phenomenon that bubbles are easily generated in the process of injecting glue and pressing the lens is avoided, the risk of splashing of the transfer monomer is effectively reduced, the lens transfer device has the advantages of high efficiency, low bubbles and the like, and the lens making quality is improved.
Description
Technical Field
The utility model relates to a contact lens injecting glue mould.
Background
As shown in fig. 1, in the conventional contact lens, a straight needle vertical glue injection manner is adopted during lens making, that is, after the vertical glue injection needle 4 vertically injects a monomer 3 into the central position of a female mold 1, the female mold is moved to a pressing position to press a male mold. The mode has poor stability, and the monomer 3 is easy to splash in the transferring process of the female die after glue injection due to the segmentation of the glue injection and pressing positions, so that the mould rubbing in the pressing process of the male die and the generation of static adsorption air to form bubbles are easy to cause, and the quality of the contact lens is influenced.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a contact lens injecting glue mould avoids the phenomenon of system mirror injecting glue and easy gassing of pressfitting in-process, effectively reduces to carry the risk that the monomer splashes, has advantages such as high efficiency, low bubble, improves system mirror quality.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a contact lens injecting glue mould, includes the master model and can pressfitting public mould on the master model, the master model includes the first depressed part at center, the edge periphery of first depressed part is provided with first vertical baffle portion, the top of first vertical baffle portion is provided with first horizontal annular portion, public mould includes the second depressed part at center, the edge periphery of second depressed part is provided with the vertical baffle portion of second, the top of the vertical baffle portion of second is provided with the horizontal annular portion of second, the horizontal annular portion of second is provided with the breach that can insert elbow injecting glue needle, form the appearance chamber of pressfitting lens between first depressed part and the second depressed part.
Preferably, a stepped end surface is formed between the first horizontal ring portion, the inner side of the first vertical baffle portion and the top end surface of the first recess portion, and the outer sides of the second horizontal ring portion and the second vertical baffle portion are engageable with the stepped end surface.
Preferably, the notch is semicircular.
Preferably, the thickness of the first recess increases from the center to the edge.
Preferably, the thickness of the second recess is uniform, or the thickness of the second recess increases from the center to the edge.
Preferably, when the pressing is carried out, a gap with a set distance is reserved between the second vertical baffle plate part and the first vertical baffle plate part.
The utility model has the advantages that:
the utility model discloses in, injecting glue and pressfitting position are in same position, and the injecting glue mode changes to use elbow injecting glue needle to stretch into public mould breach injecting glue from the side after the pressfitting in advance, and the injecting glue is accomplished the back pressfitting once more. Specifically, the female mold suction device sucks and transfers the female mold to the glue injection pressing carrying disc, the male mold suction pressing device sucks the male mold to a set position above the pressing carrying disc, the Z axis of the male mold suction pressing device is lowered to the pre-pressing glue injection position, an elbow glue injection needle of the glue injection mechanism stretches into the gap position on the side edge of the male and female mold and injects glue, the elbow glue injection needle retracts after glue injection is completed, and the male mold suction pressing device continues to be pressed to the pressing position in a layered mode to complete lens manufacturing.
The mode reduces the risk of monomer splashing in the female mold transfer process, the novel glue injection mode reduces the transfer after glue injection, the glue injection based on the capillary principle reduces the participation of bubbles and impurities generated in the pressing process, the mold rubbing phenomenon in the pressing process is effectively prevented, and the method has the characteristics of high efficiency, low bubbles and the like, and improves the quality of the mirror making.
Drawings
FIG. 1 is a schematic diagram of a glue injection method in a prior art design;
fig. 2 is a schematic diagram of the contact lens glue injection mold of the present invention for pre-pressing and glue injection;
fig. 3 is a top view of the male mold of the present invention;
FIG. 4 is a schematic view of the pre-press glue injection molding of the present invention;
the reference numerals of the drawings have the following meanings:
1: a female die; 2: a male die; 3: a monomer; 4: vertically injecting a glue needle; 5: injecting a glue needle into the elbow; 6: a notch; 7: a contact lens; 8: a first recess; 9: a first horizontal annular portion; 10: a first vertical baffle portion; 11: a stepped end face; 12: a second recess; 13: a second vertical baffle portion; 14: a second horizontal annular portion.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
As shown in fig. 2 to 4, a contact lens injection mold comprises a female mold 1 and a male mold 2 which can be pressed on the female mold 1, wherein the female mold 1 comprises a first concave portion 8 at the center, the thickness of the first concave portion 8 increases from the center to the edge, the first concave portion 8 is arc-surface-shaped, a first vertical baffle portion 10 is arranged on the periphery of the edge of the top of the first concave portion 8, that is, a circle of vertical baffles is arranged at the top of the first concave portion 8, and the vertical baffles have a certain height. A first horizontal ring portion 9 is provided on the top of the first vertical baffle portion 10, the first horizontal ring portion 9 extends outward, and the first vertical baffle portion 10 and the first horizontal ring portion 9 are perpendicular to each other.
Correspondingly, the male die 2 includes a central second concave portion 12, the thickness of the second concave portion 12 may be uniformly set, or may be gradually increased from the center to the edge, and generally, the thickness variation of the second concave portion 12 is smaller than that of the first concave portion 8. The edge periphery of second depressed part 12 is provided with the vertical baffle portion 13 of second, and the top of second depressed part 12 is provided with the vertical baffle of end to end one-tenth round promptly, and vertical baffle has certain height. The top of the second vertical baffle portion 13 is provided with a second horizontal annular portion 14, and the second horizontal annular portion 14 extends outward.
As shown in fig. 3, the second horizontal ring portion 14 is provided with a notch 6 into which the elbow glue injection needle 5 can be inserted, for example, the notch 6 is provided in a semicircular shape. The first concave portion 8 and the second concave portion 12 form a cavity for pressing the lens. And (3) injecting the monomer 3 into the female die 1 through the elbow glue injection needle 5, pressing the monomer with the male die 2, and transferring to a curing station for UV curing to form a contact lens 7.
Preferably, a stepped end surface 11 is formed between the first horizontal annular portion 9, the inner side (the side closer to the center) of the first vertical baffle portion 10, and the tip end surface of the first recess portion 8, and the outer sides of the second horizontal annular portion 14 and the second vertical baffle portion 13 are engageable with the stepped end surface 11. As shown in fig. 4, during the pressing, a gap with a set distance is left between the second vertical baffle portion 13 and the first vertical baffle portion 10, and the size of the gap can be specifically adjusted as required.
By using the pre-pressing, laminating and glue injecting mode of fig. 2, when the male mold 2 reaches the pre-pressing glue injecting position, the elbow glue injecting needle 5 is used for extending into the glue injecting from the male mold notch 6, after the glue injecting is completed, the male mold is sequentially laminated to the pressing position in a segmentation mode (the pressing is completed at different speeds at different positions), monomer splashing and bubbles caused by mold rubbing, electrostatic adsorption and the like in the pressing process are avoided, and the problem of bubble injection lens manufacturing is effectively improved.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (6)
1. A contact lens injection mold comprises a female mold (1) and a male mold (2) which can be pressed on the female mold (1), characterized in that the master model (1) comprises a central first depression (8), a first vertical baffle part (10) is arranged on the periphery of the edge of the first sunken part (8), the top of the first vertical baffle part (10) is provided with a first horizontal annular part (9), the male die (2) comprises a second concave part (12) at the center, a second vertical baffle part (13) is arranged on the periphery of the edge of the second concave part (12), the top of the second vertical baffle part (13) is provided with a second horizontal annular part (14), the second horizontal annular part (14) is provided with a gap (6) which can be inserted into the elbow glue injection needle (5), and a cavity for pressing the lens is formed between the first concave part (8) and the second concave part (12).
2. A mold for injecting contact lenses according to claim 1, wherein a stepped end surface (11) is formed between the inner side of the first horizontal ring portion (9), the first vertical baffle portion (10) and the top end surface of the first recess (8), and the outer sides of the second horizontal ring portion (14) and the second vertical baffle portion (13) are engaged with the stepped end surface (11).
3. A contact lens injecting mold according to claim 1, wherein said notch (6) is semicircular.
4. A contact lens injection mold according to claim 2, wherein the thickness of the first recess (8) increases from the center to the edge.
5. A contact lens injection mold according to claim 4, wherein the thickness of the second recess (12) is uniform or the thickness of the second recess (12) increases from the center to the edge.
6. A mold for injecting lens according to claim 2, wherein a gap of a predetermined distance is left between the second vertical baffle portion (13) and the first vertical baffle portion (10) during pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921433618.1U CN210453431U (en) | 2019-08-30 | 2019-08-30 | Glue injection mold for contact lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921433618.1U CN210453431U (en) | 2019-08-30 | 2019-08-30 | Glue injection mold for contact lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210453431U true CN210453431U (en) | 2020-05-05 |
Family
ID=70430569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921433618.1U Active CN210453431U (en) | 2019-08-30 | 2019-08-30 | Glue injection mold for contact lenses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210453431U (en) |
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2019
- 2019-08-30 CN CN201921433618.1U patent/CN210453431U/en active Active
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