CN218505115U - Exhaust system of lens injection mold - Google Patents
Exhaust system of lens injection mold Download PDFInfo
- Publication number
- CN218505115U CN218505115U CN202221796104.4U CN202221796104U CN218505115U CN 218505115 U CN218505115 U CN 218505115U CN 202221796104 U CN202221796104 U CN 202221796104U CN 218505115 U CN218505115 U CN 218505115U
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- Prior art keywords
- movable mould
- exhaust
- injection mold
- chamber
- annular
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- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 238000013022 venting Methods 0.000 claims 4
- 238000007493 shaping process Methods 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a pair of lens injection mold exhaust system, including the movable mould bottom plate, carrier plate and movable mould board, the carrier plate is installed between movable mould bottom plate and movable mould board, it is used for installing the movable mould mold core to be equipped with the movable mould chamber that a plurality of structure is the same on the movable mould board, the movable mould chamber is circular structure, single movable mould chamber is equipped with bellied die joint lug along its appearance outward, be equipped with first exhaust passage on the die joint lug, first exhaust passage communicates with each other with the movable mould chamber, the outside of die joint lug is equipped with the annular exhaust duct with the interior concave structure that the axle center in movable mould chamber overlaps, be equipped with two at least first exhaust holes along its axle center direction in the annular exhaust duct, single first exhaust hole position is corresponding with first exhaust passage position and rather than being linked together, be equipped with the second exhaust hole on the carrier plate and communicate with each other with first exhaust hole. The utility model provides a lens injection mold exhaust system for the air discharge in the mould is more abundant, reduces mould internal pressure, has improved the appearance quality of lens product.
Description
Technical Field
The utility model relates to an injection mold technical field specifically is a lens injection mold exhaust system.
Background
Injection mold belongs to the die cavity mould, there is a large amount of air in the die cavity, when the melting raw materials gets into the die cavity fast, in time discharge these air, to the high-accuracy optical product of moulding plastics, if can not in time discharge the gas in the die cavity in time, after the cooling shaping, the air can lead to the inside defects such as gas pocket that forms of injection molding, in addition, the air in the die cavity of moulding plastics still can hinder the melting plastic and get into, finally lead to the surface of lens to form defects such as recess, consequently need reasonable in design's exhaust system to carry out quick exhaust to it.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lens injection mold exhaust system to solve the technical problem in the background art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a lens injection mold exhaust system, includes movable mould bottom plate, carrier plate and movable mould board, the carrier plate is installed between movable mould bottom plate and movable mould board, be equipped with the first holding chamber that is used for installing liftout mechanism in the carrier plate, it is used for installing the movable mould core to be equipped with the movable mould model chamber that a plurality of structure is the same in the movable mould board, the movable mould model chamber is circular structure, singly the movable mould model chamber is equipped with bellied die joint lug along its appearance outward, be equipped with first exhaust passage on the die joint lug, first exhaust passage communicates with each other with the movable mould model chamber, the outside of die joint lug is equipped with the annular exhaust duct with the interior concave structure that overlaps in the axle center of movable mould chamber be equipped with two at least first exhaust holes, singly first exhaust hole position is corresponding rather than being linked together with first exhaust passage position, first exhaust hole runs through both sides around the movable mould board, be equipped with the second exhaust hole on the carrier plate and communicate with first exhaust hole, the second carrier plate runs through both sides around the exhaust hole.
The bottom surface of the first exhaust channel is flush with the bottom surface of the annular exhaust groove.
The depth of the annular exhaust groove is 0.3-0.5mm.
The first exhaust hole and the second exhaust hole have the same diameter, and the diameter of the first exhaust hole is 2-4mm.
The movable mould plate is provided with four same movable mould cavities, the four movable mould cavities are arranged in pairwise symmetry, the annular exhaust grooves of two adjacent movable mould cavities are communicated, and a first exhaust hole is arranged at the communicated position of the annular exhaust grooves.
Compared with the prior art, the utility model provides a lens injection mold exhaust system, adopt the exhaust mode of formula of sinking, through annular exhaust groove with gas drainage to first exhaust hole, the gas of first exhaust hole passes through the second exhaust hole again, thereby arrange the gas in the die cavity to the carrier plate outside, make the air escape in the mould more abundant, reduce mould internal pressure, effectively reduce because gas escape untimely the residual of the internal stress that leads to the die cavity often, let the surface of lens form the surface flow mark, the exhaust system of this application is favorable to the quick shaping of product, the appearance quality of lens product is improved, satisfy the shaping requirement of accurate lens.
Drawings
FIG. 1: a schematic perspective structure of the present application;
FIG. 2: enlarged at a of fig. 1;
FIG. 3: a front view of the present application;
FIG. 4 is a schematic view of: FIG. 3 is a sectional view taken along line B-B;
FIG. 5: fig. 4 is an enlarged view at C.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Specific example 1: please refer to fig. 1 to 5, in an embodiment of the present invention, an exhaust system for a lens injection mold includes a movable mold base plate 1, a support plate 2 and a movable mold plate 3, the support plate 2 is installed between the movable mold base plate 1 and the movable mold plate 3, a first accommodating cavity 201 for installing a material ejecting mechanism is provided in the support plate 2, a plurality of movable mold cavities 301 with the same structure are provided on the movable mold plate 3 for installing a movable mold core, in this embodiment, four same movable mold cavities 301 are provided on the movable mold plate 3, the four movable mold cavities 301 are arranged in pairwise symmetry, the movable mold cavity 301 is a circular structure, a single movable mold cavity 301 is provided with a convex parting surface bump 302 along its outer shape, a first exhaust channel 302-1 is provided on the parting surface bump 302, the first exhaust channel 302-1 is communicated with the movable mold cavity 301, the first exhaust channel 302-1 penetrates through the inner and outer sides of the parting surface bump 302, an annular exhaust groove 303 with an inner concave structure overlapped with the axis of the movable mold cavity 301 is provided on the outer side of the parting surface bump 302, the bottom surface of the first exhaust channel 302-1 is flat with the bottom surface of the annular exhaust groove, the annular exhaust groove 303, the depth H is 0.3mm, and the depth of the annular exhaust groove 303 is 0.5mm.
At least two first exhaust holes 304 are arranged in the annular exhaust groove 303 along the axis direction, the position of a single first exhaust hole 304 corresponds to the position of the first exhaust channel 302-1 and is communicated with the first exhaust channel, the first exhaust hole 304 penetrates through the front side and the rear side of the movable template 3, the carrier plate 2 is provided with a second exhaust hole 202 communicated with the first exhaust hole 304, the second exhaust hole 202 penetrates through the front side and the rear side of the carrier plate 2, the diameters of the first exhaust hole 304 and the second exhaust hole 202 are the same, the diameter D1 of the first exhaust hole 304 is 2-4mm, in the embodiment, the diameter D1 of the first exhaust hole 304 is 2mm, the annular exhaust grooves 303 of two adjacent movable model cavities 301 are communicated, the first exhaust hole 304 is arranged at the communication position, and the gas in the mold is exhausted to the second exhaust hole 202 through the first exhaust hole 304 and then is exhausted outwards.
Compared with the prior art, the utility model provides a lens injection mold exhaust system, adopt the exhaust mode of formula of sinking, through annular exhaust groove with gas drainage to first exhaust hole, the gas of first exhaust hole passes through the second exhaust hole again, thereby arrange the gas in the die cavity to the carrier plate outside, make the air escape in the mould more abundant, reduce mould internal pressure, effectively reduce because gas escape untimely the residual of the internal stress that leads to the die cavity often, let the surface of lens form the surface flow mark, the exhaust system of this application is favorable to the quick shaping of product, the appearance quality of lens product is improved, satisfy the shaping requirement of accurate lens.
It is obvious to a person skilled in the art that the invention is not restricted to details of the foregoing exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a lens injection mold exhaust system which characterized in that: including movable mould bottom plate, carrier plate and movable mould board, the carrier plate is installed between movable mould bottom plate and movable mould board, be equipped with the first holding chamber that is used for installing liftout mechanism in the carrier plate, it is used for installing the movable mould mold core to be equipped with the movable mould model chamber that a plurality of structure is the same in the movable mould board, the movable mould model chamber is circular structure, singly the movable mould chamber is equipped with bellied die joint lug along its appearance outward, be equipped with first exhaust passage on the die joint lug, first exhaust passage communicates with each other with the movable mould model chamber, the outside of die joint lug is equipped with the annular exhaust duct with the interior concave structure that the axle center in movable mould chamber overlaps be equipped with two at least first exhaust openings, singly along its axle center direction in the annular exhaust duct first exhaust opening position is corresponding and rather than being linked together with first exhaust passage position, first exhaust opening runs through both sides around the movable mould board, be equipped with the second exhaust opening on the carrier plate and communicate with first exhaust opening, the second runs through both sides around the exhaust opening.
2. The lens injection mold venting system of claim 1, wherein: the bottom surface of the first exhaust channel is flush with the bottom surface of the annular exhaust groove.
3. The lens injection mold venting system of claim 2, wherein: the depth of the annular exhaust groove is 0.3-0.5mm.
4. The lens injection mold venting system of claim 3, wherein: the first exhaust hole and the second exhaust hole have the same diameter, and the diameter of the first exhaust hole is 2-4mm.
5. The lens injection mold venting system of claim 4, wherein: the movable mould plate is provided with four same movable mould cavities, the four movable mould cavities are arranged in pairwise symmetry, the annular exhaust grooves of two adjacent movable mould cavities are communicated, and a first exhaust hole is arranged at the communicated position of the annular exhaust grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221796104.4U CN218505115U (en) | 2022-07-13 | 2022-07-13 | Exhaust system of lens injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221796104.4U CN218505115U (en) | 2022-07-13 | 2022-07-13 | Exhaust system of lens injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218505115U true CN218505115U (en) | 2023-02-21 |
Family
ID=85207112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221796104.4U Active CN218505115U (en) | 2022-07-13 | 2022-07-13 | Exhaust system of lens injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218505115U (en) |
-
2022
- 2022-07-13 CN CN202221796104.4U patent/CN218505115U/en active Active
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| GR01 | Patent grant |