CN213766940U - Lens cone forming die - Google Patents
Lens cone forming die Download PDFInfo
- Publication number
- CN213766940U CN213766940U CN202022393817.3U CN202022393817U CN213766940U CN 213766940 U CN213766940 U CN 213766940U CN 202022393817 U CN202022393817 U CN 202022393817U CN 213766940 U CN213766940 U CN 213766940U
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- movable
- insert
- side insert
- fixed
- movable side
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- 238000000465 moulding Methods 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model provides a lens cone forming die, including fixed group, movable group and side slider, fixed group with movable group supports respectively and leans on the relative both ends of side slider. The fixed group comprises a fixed side inlet and a fixed side sleeve which are sequentially arranged from inside to outside. The movable group comprises a movable side insert, a movable side insert and a movable side sleeve which are sequentially arranged from inside to outside. The fixed side insert is arranged opposite to the movable side insert, and the fixed side sleeve and the movable side sleeve are respectively abutted against two opposite ends of the side sliding block. The movable-side insert includes at least two sub-inserts that are separable from each other in a direction perpendicular to the optical axis, and an air discharge groove is formed between the at least two sub-inserts. During injection molding, gas in the closed molding space can be discharged through the exhaust groove, so that poor molding of the lens cone light through hole caused by poor exhaust is avoided, and the yield of lens cone production is improved.
Description
Technical Field
The utility model relates to an optical lens field particularly, relates to a lens cone forming die.
Background
The existing lens cone is mostly manufactured by injection molding, a fixed side insert and a movable side insert are mutually supported during molding, the molding position of a light through hole is the supporting position of the fixed side insert and the movable side insert, and a first space around the supporting position of the fixed side insert and the movable side insert is narrow, so that gas residue is often generated at the position during injection molding due to poor exhaust, and once the gas residue is generated, the molding of the light through hole is irregular, and finally the imaging quality of a lens module is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a lens barrel molding die with smooth exhaust.
A lens barrel forming die comprises a fixed group, a movable group and a side sliding block, wherein the fixed group and the movable group are respectively abutted against two opposite ends of the side sliding block, the fixed group comprises a fixed side insert and a fixed side sleeve which are sequentially arranged from inside to outside, the movable group comprises a movable side insert, a movable side insert and a movable side sleeve which are sequentially arranged from inside to outside, the fixed side insert and the movable side insert are oppositely arranged, the fixed side sleeve and the movable side sleeve are respectively abutted against two opposite ends of the side sliding block, the movable side insert comprises at least two sub inserts which can be mutually separated in the direction perpendicular to an optical axis, and an exhaust groove is formed between the at least two sub inserts. During injection molding, gas in the closed first space can be discharged through the exhaust groove, poor forming of the lens cone light through hole caused by poor exhaust is avoided, and the yield of lens cone production is improved.
Further, when the mold is closed, a first space exists between one side of the movable side insert close to the fixed side sleeve and one side of the fixed side sleeve close to the movable side insert, and the first space is used for molding a side wall of the lens barrel. The first space is provided to mold the lens barrel.
Further, a first gap portion communicating with the first space is provided between a side of the fixed-side insert and a side of the movable-side insert, the side being close to the movable-side insert, and the side being close to the fixed-side insert. During injection molding, gas in the closed first space reaches the exhaust groove through the first gap part to be exhausted, poor forming of the lens barrel light through hole caused by poor exhaust in the forming process is prevented, and the yield of lens barrel production is improved.
Further, the son is gone into the son and is two, every the son is gone into the son and is included the annular top surface of semicircle, the annular bottom surface of semicircle and connects the lateral surface of top surface and bottom surface, the lateral surface includes two coaxial semicylindrical sides and connects two planes of two semicylindrical sides, two son go into after the sub-assembly together, two son go into the clearance formation between two relative planes of son the exhaust duct. The gas in the closed first space can be exhausted through the exhaust groove, so that poor forming of the lens cone light through hole caused by poor exhaust is avoided, and the yield of lens cone production is improved.
Further, the exhaust groove communicates with the first gap portion. The exhaust groove is communicated with the first gap part so as to lead the air in the first space to the exhaust groove through the first gap part for exhaust, thereby preventing the phenomenon of poor forming of the lens barrel light through hole caused by poor exhaust.
Furthermore, in the mold closing direction, a cylindrical exhaust hole is formed in the center of the movable side insert, and the exhaust hole is communicated with the first gap portion. The exhaust hole is communicated with the first gap part and used for exhausting gas in the closed first space, so that poor forming of the lens barrel light through hole caused by poor exhaust in the forming process is prevented, and the yield of lens barrel production is improved.
Further, the movable-side insert is cylindrical, and the diameter d2 of the exhaust hole satisfies the following relation: 0.1mm < D2 < 1/3D, where D is the diameter of the movable-side insert. The diameter of the exhaust hole relative to the movable side insert is limited, so that the lens barrel forming die is easy to process and is beneficial to exhausting and sealing gas in the first space.
Further, the movable-side insert is cylindrical, the movable-side insert surrounds the movable-side insert, and the movable-side insert is coaxial with the movable-side insert in the mold closing direction, and the outer diameter of the movable-side insert is smaller than the inner diameter of the movable-side insert, so that a second gap portion is formed between the outer wall of the movable-side insert and the inner wall of the movable-side insert, and the second gap portion communicates with the first gap portion. During injection molding, gas in the closed first space reaches the second gap part through the first gap part and is exhausted, poor forming of the lens barrel light through hole caused by poor exhaust in the forming process is prevented, and the yield of lens barrel production is improved.
Furthermore, the number of the sub-inserts is two, a protruding structure is arranged on the plane of one sub-insert, a groove structure is arranged on the plane of the other sub-insert, and the two sub-inserts are fixed in a clamping mode through the protruding structure and the groove structure. The convex structures and the groove structures are arranged on the sub-inserts, so that the sub-inserts can be clamped and fixed.
Furthermore, the fixed side insert and the movable side insert are coaxial cylinders, the diameter of the fixed side insert is larger than that of the movable side insert, and the longitudinal sections of the fixed side insert and the movable side insert are in a T-shaped structure during mold closing. When the die is closed, the T-shaped structure is beneficial to forming the light through hole of the lens cone.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is an exploded view of a preferred embodiment of a lens barrel molding die according to the present invention;
fig. 2 is an enlarged view of the movable-side insert of fig. 1;
fig. 3 is a sectional view of a lens barrel molding die according to a preferred embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, the present invention provides a lens barrel forming mold 100, wherein the lens barrel forming mold 100 includes a fixed set 10, a movable set 20 and a side slider 30. The fixed group 10 and the movable group 20 respectively abut against opposite ends of the side slider 30. The fixing assembly 10 includes a fixing side insert 11 and a fixing side sleeve 12 which are sequentially arranged from inside to outside. The movable group 20 includes a movable-side insert 21, a movable-side insert 22, and a movable-side sleeve 23, which are provided in this order from the inside to the outside. The fixed-side insert 11 and the movable-side insert 21 are disposed to face each other, and the fixed-side sleeve 12 and the movable-side sleeve 23 abut against opposite ends of the side slider 30, respectively.
Referring to fig. 3, when the mold is closed, a first space 40 exists between a side of the movable side insert 22 close to the fixed side sleeve 12 and a side of the fixed side sleeve 12 close to the movable side insert 22, and the first space 40 is used for molding a side wall of the lens barrel. The first space is provided to mold the lens barrel.
Referring to fig. 3, when the mold is closed, a first gap 41 communicating with the first space 40 is provided between a side of the fixed-side insert 11 close to the movable-side insert 21 and a side of the movable-side insert 21 close to the fixed-side insert 11, and is configured to exhaust gas in the first space 40. During injection molding, gas in the closed molding space reaches the exhaust groove through the first gap part to be exhausted, so that poor molding of the lens barrel light through hole caused by poor exhaust in the molding process is prevented, and the yield of lens barrel production is improved. The first gap portion 41 is small with respect to the first space 40 to ensure that the injection material does not flow into the first gap portion 41. The first gap 41 may be formed by providing a small gap between the fixed-side insert 11 and the end of the movable-side insert 21, or may be formed by providing a small groove at the end of the fixed-side insert 11 or (and) the movable-side insert 21.
Referring to fig. 2 and 3, the movable-side insert 21 includes at least two sub-inserts that are separable from each other in a direction perpendicular to the optical axis, and an air release groove 44 is formed between the at least two sub-inserts. In this embodiment the son is gone into for two 210 and 211, every the son is gone into the son and is included the annular top surface of semicircle, the annular bottom surface of semicircle and connects the lateral surface of top surface and bottom surface, the lateral surface includes two coaxial semicylinder sides and connects two planes of two semicylinder sides, one of them the son goes into the son be provided with protruding structure on the plane, another the son goes into the son be provided with groove structure on the plane, through protruding structure with groove structure is with two the son is gone into the son and is borrow the block mode fixedly. The gap between the two opposing flat surfaces of the two sub-inserts forms the vent slot 44 when the two sub-inserts are assembled together. The exhaust groove 44 communicates with the first gap 41 and exhausts the gas in the first gap 41. The exhaust groove is communicated with the first gap part so as to lead the air in the molding space to the exhaust groove through the first gap part for exhaust, thereby preventing the phenomenon of poor molding of the lens barrel light through hole caused by poor exhaust. The two sub-inserts may be equally or unequally divided, and may be formed by longitudinally or transversely cutting the cylindrical movable-side insert 21. In other embodiments, the movable-side insert 21 may include more than two insert inserts, such as three insert inserts, four insert inserts, etc.
Referring to fig. 2 and 3, in the mold closing direction, a cylindrical exhaust hole 42 is formed in the center of the movable insert inlet 21, and the exhaust hole 42 is communicated with the first gap portion 41. The exhaust hole is communicated with the first gap part and used for exhausting gas in the closed forming space, so that poor forming of the lens barrel light through hole caused by poor exhaust in the forming process is prevented, and the yield of lens barrel production is improved. The movable-side insert 21 is cylindrical, and the diameter d2 of the exhaust hole 42 satisfies the following relationship: 0.1mm < D2 < 1/3D, where D is the diameter of the movable-side insert 21. The diameter of the exhaust hole relative to the movable side insert is limited, so that the lens barrel forming die is easy to process and is beneficial to exhausting gas in the closed forming space.
Referring to fig. 3, the movable-side insert 22 surrounds the movable-side insert 21, the movable-side insert 21 and the movable-side insert 22 are coaxial with each other in a mold clamping direction, and an outer diameter of the movable-side insert 21 is smaller than an inner diameter of the movable-side insert 22, so that a second gap portion 43 is formed between an outer wall of the movable-side insert 21 and an inner wall of the movable-side insert 22, and the second gap portion 43 communicates with the first gap portion 41 to discharge gas in the first gap portion 41. During injection molding, gas in the closed molding space reaches the second gap part through the first gap part and is exhausted, poor molding of the lens barrel light through hole caused by poor exhaust in the molding process is prevented, and the yield of lens barrel production is improved.
Referring to fig. 3, the fixed-side insert 11 and the movable-side insert 21 are coaxial cylinders, the diameter of the fixed-side insert 11 is larger than that of the movable-side insert 21, the fixed-side insert 11 is located above the movable-side insert 21, and when the mold is closed, the longitudinal sections of the fixed-side insert 11 and the movable-side insert 21 are in a "T" shape. When the die is closed, the T-shaped structure is beneficial to forming the light through hole of the lens cone.
The lens barrel forming die 100 is made of loose porous or powder metallurgy materials, so that gas in the closed first space can be discharged, and the yield of lens barrel production is improved.
The lens barrel molding mold 100 further includes an injection port (not shown) for receiving injection of the injection material and a runner (not shown) communicating the injection port with the first space 40 for guiding the injection material into the first space 40.
From the above description, it can be seen that the above-described embodiments achieve the following technical effects: a lens barrel forming mold 100 comprises a fixed set 10, a movable set 20 and a side slide block 30, wherein the fixed set 10 and the movable set 20 respectively abut against two opposite ends of the side slide block 30. The fixing assembly 10 includes a fixing side insert 11 and a fixing side sleeve 12 which are sequentially arranged from inside to outside. The movable group 20 includes a movable-side insert 21, a movable-side insert 22, and a movable-side sleeve 23, which are provided in this order from the inside to the outside. The fixed-side insert 11 and the movable-side insert 21 are disposed to face each other, and the fixed-side sleeve 12 and the movable-side sleeve 23 abut against opposite ends of the side slider 30, respectively. The movable-side insert 21 includes at least two sub-inserts that are separable from each other in a direction perpendicular to the optical axis, and an air release groove 44 is formed between the at least two sub-inserts. During injection molding, gas in the closed molding space can be discharged through the exhaust groove, so that poor molding of the lens cone light through hole caused by poor exhaust is avoided, and the yield of lens cone production is improved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a lens cone forming die, includes fixed group, movable group and side slider, fixed group with the movable group supports respectively and leans on the relative both ends of side slider, fixed group is including fixed side income piece and the fixed side sleeve that sets gradually from inside to outside, movable group is including the movable side mold insert income piece, movable side income piece and the movable side sleeve that set gradually from inside to outside, fixed side income piece with movable side mold insert income piece sets up relatively, fixed side sleeve with movable side sleeve supports respectively and leans on the relative both ends of side slider, its characterized in that: the movable-side insert includes at least two sub-inserts that are separable from each other in a direction perpendicular to the optical axis, and an air discharge groove is formed between the at least two sub-inserts.
2. The lens barrel molding die according to claim 1, wherein: when the die is closed, a first space exists between one side of the movable side insert close to the fixed side sleeve and one side of the fixed side sleeve close to the movable side insert, and the first space is used for molding the side wall of the lens barrel.
3. The lens barrel molding die according to claim 2, wherein: when the mold is closed, a first gap part communicated with the first space is arranged between one side of the fixed side insert close to the movable side insert and one side of the movable side insert close to the fixed side insert.
4. The lens barrel molding die according to claim 3, wherein: the son is gone into the son and is two, every the son is gone into the son and is included the annular top surface of semicircle, the annular bottom surface of semicircle and connects the lateral surface of top surface and bottom surface, the lateral surface includes two coaxial semicylinder sides and connects two planes of two semicylinder sides, two son go into after the sub-assembly is together, two son go into the clearance formation between two relative planes of son the exhaust duct.
5. The lens barrel molding die according to claim 4, wherein: the exhaust groove communicates with the first gap portion.
6. The lens barrel molding die according to claim 3, wherein: in the mold closing direction, a cylindrical exhaust hole is formed in the center of the movable side insert, and the exhaust hole is communicated with the first gap portion.
7. The lens barrel molding die according to claim 6, wherein: the movable side insert is cylindrical, and the diameter d2 of the exhaust hole satisfies the following relation: 0.1mm < D2 < 1/3D, D being the diameter of the movable-side insert.
8. The lens barrel molding die according to claim 3, wherein: the movable side insert is cylindrical, surrounds the movable side insert, is coaxial with the movable side insert in the mold closing direction, and has an outer diameter smaller than an inner diameter of the movable side insert so as to form a second gap portion between an outer wall of the movable side insert and an inner wall of the movable side insert, and the second gap portion is communicated with the first gap portion.
9. The lens barrel molding die according to claim 4, wherein: the number of the sub-inserts is two, a protruding structure is arranged on the plane of one sub-insert, a groove structure is arranged on the plane of the other sub-insert, and the two sub-inserts are fixed in a clamping mode through the protruding structure and the groove structure.
10. The lens barrel molding die according to claim 1, wherein: the fixed side insert and the movable side insert are coaxial cylinders, the diameter of the fixed side insert is larger than that of the movable side insert, and the longitudinal sections of the fixed side insert and the movable side insert are in a T-shaped structure during die assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022393817.3U CN213766940U (en) | 2020-10-23 | 2020-10-23 | Lens cone forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022393817.3U CN213766940U (en) | 2020-10-23 | 2020-10-23 | Lens cone forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213766940U true CN213766940U (en) | 2021-07-23 |
Family
ID=76911135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022393817.3U Expired - Fee Related CN213766940U (en) | 2020-10-23 | 2020-10-23 | Lens cone forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213766940U (en) |
-
2020
- 2020-10-23 CN CN202022393817.3U patent/CN213766940U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210723 |