CN111113790A - Manufacturing method of secondary injection molding camera optical spherical cover with shading function - Google Patents
Manufacturing method of secondary injection molding camera optical spherical cover with shading function Download PDFInfo
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- CN111113790A CN111113790A CN201911394982.6A CN201911394982A CN111113790A CN 111113790 A CN111113790 A CN 111113790A CN 201911394982 A CN201911394982 A CN 201911394982A CN 111113790 A CN111113790 A CN 111113790A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 67
- 238000001746 injection moulding Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000013461 design Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a method for manufacturing a secondary injection molding camera optical spherical cover with a shading function, which comprises the following steps: s1, a worker designs a first arc-shaped cover body according to the diameter length of the outer diameter of the camera lens, wherein the design width of the first arc-shaped cover body is D; step S2, light-isolating check rings for isolating light rays are arranged at the left end and the right end of the first arc-shaped cover body in a matching mode, and the radius SR of the outer surface of the first arc-shaped cover body is consistent with the radius B-SR of the outer surface of each light-isolating check ring; step S3, a second arc-shaped cover body and a third arc-shaped cover body are respectively connected to the left end and the right end of the first arc-shaped cover body, the second arc-shaped cover body is connected with the left end face of the first arc-shaped cover body under the action of the light-isolating check ring, and the third arc-shaped cover body is connected with the right end face of the first arc-shaped cover body under the action of the light-isolating check ring; the camera optical dome cover is convenient and fast to operate, and can enable workers to manufacture the camera optical dome cover which can isolate light rays in the two side areas of the dome cover from entering the lens.
Description
Technical Field
The invention relates to the technical field of cameras, in particular to a manufacturing method of a secondary injection molding camera optical spherical cover with a shading function.
Background
The optical dome cover of the hemispherical camera widely used in the existing market is characterized in that the appearance of the optical dome cover is a hemispherical or similar revolution body. The transparent spherical cover can effectively protect the optical camera lens with high value inside the transparent spherical cover, but due to the appearance effect of high brightness and high light of the optical spherical cover, external stray light can enter the lens in a large range to influence the imaging effect of the lens, at the moment, excessive stray light needs to be treated, such as increase of lining shielding, and addition of the shading foam, but because the spherical cover is of an integral structure, redundant light cannot be isolated through refraction and the like inside the section of the spherical cover. Or plating an optical reflection film on the ball cover to reduce stray light in a mode of reflecting redundant light. But the cost and the weather resistance of the optical coating are not suitable for the popularization of the whole scene.
Disclosure of Invention
In view of the above, in order to overcome the problems in the prior art, an object of the present invention is to provide a method for manufacturing a twice-injection-molded camera optical dome with a light-shielding function, which enables a worker to manufacture a camera optical dome that shields light rays from two side regions of the dome from entering a lens.
The invention is realized by adopting the following method, comprising the following steps:
s1, a worker designs a first arc-shaped cover body according to the diameter length of the outer diameter of the camera lens, wherein the design width of the first arc-shaped cover body is D;
step S2, light-isolating check rings for isolating light rays are arranged at the left end and the right end of the first arc-shaped cover body in a matching mode, and the radius SR of the outer surface of the first arc-shaped cover body is consistent with the radius B-SR of the outer surface of each light-isolating check ring;
step S3, a second arc-shaped cover body and a third arc-shaped cover body are respectively connected to the left end and the right end of the first arc-shaped cover body, the second arc-shaped cover body is connected with the left end face of the first arc-shaped cover body under the action of the light-isolating check ring, and the third arc-shaped cover body is connected with the right end face of the first arc-shaped cover body under the action of the light-isolating check ring, so that the light-isolating check ring is located at the connection position of the first arc-shaped cover body and the second arc-shaped cover body, and the first arc-shaped cover body and the third arc-;
and S4, manufacturing a mold meeting the requirements through the width and the position of the first arc-shaped cover body and the light-isolating check ring, embedding the light-isolating check ring into the mold by a worker after the mold is formed, starting injection molding, and taking out the injection-molded optical ball cover after the injection molding is finished.
Further, the light-blocking retainer ring, the first arc-shaped cover body, the second arc-shaped cover body and the third arc-shaped cover body form the optical ball cover through injection molding and integrated forming, and the first arc-shaped cover body is an intermediate imaging area.
Further, in the step S4, the mold includes a mold male mold core and a mold female mold core, an arc-shaped groove for placing the light-blocking check ring is formed in the mold male mold core, the mold is partitioned into three regions by the action of the arc-shaped groove, the three regions are respectively a middle region for injection molding to form a first arc-shaped cover body, a left region for injection molding to form a second arc-shaped cover body, and a right region for injection molding to form a third arc-shaped cover body, the mold is provided with a main gate for casting the middle region, a first branch gate for casting the left region, and a second branch gate for casting the right region, feed inlets of the main gate, the first branch gate, and the second branch gate are all connected through a runner, and the mold male mold core and the mold female mold core are matched to compress the light-blocking check ring; the left end and the right end in the runner are respectively provided with a first runner regulating valve and a second runner regulating valve, the first runner regulating valve is arranged on the right side of the first branch sprue, and the second runner regulating valve is arranged on the left side of the second branch sprue.
Further, the value range of the width D in the step S1 is 30% to 60% of a value twice as large as the half SR of the outer surface of the optical spherical cover.
Further, the step S2 includes that, in the manufacturing process, in order to put the light-blocking check ring into the mold, the outer diameter B- Φ of the clamp pin of the light-blocking check ring needs to be smaller than the outer diameter Φ of the optical sphere cover by a single side of 0.1-0.2mm, in combination with the flange structure of the optical sphere cover.
Further, in the step S2, the thickness of the first arc-shaped cover body is t, and the thicknesses t' and t ″ of the light-blocking check ring and the first arc-shaped cover body which are welded together range from 1/2t to 2/3 t.
Furthermore, the outer diameter phi of the flange edge of the optical spherical cover is generally 2 times of the radius SR of the outer surface of the first arc-shaped cover body, and the single edge is enlarged by 2-8mm according to the assembly requirement; the thickness B-d of the flange edge of the light-isolating retainer ring is consistent with the thickness d of the flange edge of the optical ball cover, and the thickness range is generally between 1.5mm and 4 mm.
Further, the value range of the radius SR of the outer surface of the first arc-shaped cover body and the radius B-SR of the outer surface of the light-blocking retainer ring in the step S2 is between 40 mm and 100 mm.
Further, after the step S3, a transition R angle is set on the concave mold core of the mold, and the value range of the transition R angle is 0.5-1.5 mm.
Further, step S4 is followed by further including still offering the locating hole that is used for optical ball cover positioning and spacing centre and both sides region on the optical ball cover that moulds plastics and on the mould.
The invention has the beneficial effects that: the optical spherical cover is divided into three areas by adding the light-isolating retainer ring, so that light rays in the two side areas can be completely isolated from entering the lens through the transparent spherical cover; compared with the smooth inner wall of the optical ball cover without the shading check ring in the prior art, the shading check ring can provide firmer and effective support for subsequent assembly of the internal space of the whole machine, and the internal assembly structure is stabilized; if the two side areas have no imaging requirements, the corresponding positions of the mold core do not need to be polished at the optical imaging level, so that the processing period and the cost can be reduced; the invention distinguishes the position mainly used for imaging the lens from other positions by identifying the internal structure and the using area of the spherical cover, and uses the lightproof light-isolating check ring completely embedded into the optical spherical cover to physically isolate the areas except the area required by the lens, thereby completely isolating the light rays in the areas at two sides from entering the lens.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a front view of the present invention.
Fig. 5 is a top view of the present invention.
Fig. 6 is a schematic structural view of the light-blocking baffle.
Fig. 7 is a schematic structural view of the mold during mold splitting.
Fig. 8 is a schematic structural view of the mold when closed.
Fig. 9 is a schematic structural view of the mold.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 9, the present invention provides an embodiment, and the manufacturing method includes the following steps: step S1, a worker designs a first arc-shaped cover body 1 according to the diameter length of the outer diameter of the camera lens, and the design width of the first arc-shaped cover body 1 is D;
step S2, arranging light-isolating check rings 2 for isolating light rays at the left end and the right end of a first arc-shaped cover body 1 in a matching mode, wherein the radius SR of the outer surface of the first arc-shaped cover body 1 is consistent with the radius B-SR of the outer surface of the light-isolating check ring 2;
step S3, respectively connecting a second arc-shaped cover body 3 and a third arc-shaped cover body 4 to the left end and the right end of the first arc-shaped cover body 1, wherein the second arc-shaped cover body 3 is connected with the left end face of the first arc-shaped cover body 1 under the action of the light-isolating check ring 2, and the third arc-shaped cover body 4 is connected with the right end face of the first arc-shaped cover body 1 under the action of the light-isolating check ring 2, so that the light-isolating check ring 2 is positioned at the connecting part of the first arc-shaped cover body 1 and the second arc-shaped cover body 3, and the first arc-shaped cover body 1 and the third arc-;
step S4, manufacturing a mold 5 meeting requirements through the width and the position of the first arc-shaped cover body 1 and the light-isolating check ring 2, embedding the light-isolating check ring 2 into the mold 5 by a worker after the mold 5 is formed, starting injection molding, and taking out the injection-molded optical ball cover after the injection molding is finished.
Referring to fig. 2 and fig. 3, in an embodiment of the present invention, the light-blocking baffle 2, the first arc-shaped cover body 1, the second arc-shaped cover body 3, and the third arc-shaped cover body 4 are integrally formed by injection molding to form an optical spherical cover, where the first arc-shaped cover body 1 is a middle imaging area.
Referring to fig. 7 to 9, in an embodiment of the present invention, in step S4, the mold 5 includes a mold male mold core 51 and a mold female mold core 52, an arc-shaped groove 53 for placing the light-blocking baffle 2 is formed on the mold male mold core 51, the mold 5 is divided into three regions by the action of the arc-shaped groove 53, the three regions are a middle region 54 for forming the first arc-shaped cover 1 by injection molding, a left region 55 for forming the second arc-shaped cover 3 by injection molding, and a right region 56 for forming the third arc-shaped cover 4 by injection molding, the mold 5 is provided with a main gate 57 for casting the middle region 54, a first branch gate 58 for casting the left region 55, and a second branch gate 59 for casting the right region 56, and the feed inlets of the main gate 57, the first branch gate 58, and the second branch gate 59 are all connected by a runner 6, the mold male mold core 51 and the mold female mold core 52 are matched and matched to tightly press the light-isolating retainer ring 2; a first runner adjusting valve 61 and a second runner adjusting valve 62 are respectively arranged at the left end and the right end in the runner 6, the first runner adjusting valve 61 is arranged at the right side of the first branch gate 58, the second runner adjusting valve 62 is arranged at the left side of the second branch gate 59, so that the adjustment of the cross section area of the runner can be realized under the action of the first runner adjusting valve 61 and the second runner adjusting valve 62, the purpose of synchronous pouring is achieved by adjusting the cross section area of the runner, the optical spherical cover is divided into 3 independent areas due to the isolation of the light isolating retainer ring 2, and a main gate 57, the first branch gate 58 and the second branch gate 59 are required to be respectively arranged in each area for satisfying the pouring in the three areas; ideally, three zones can complete injection molding at the same time; in order to meet the overall quality requirement of the optical ball cover, the purpose of synchronous step casting is achieved by adjusting the sectional area of the runner. The middle area is divided on the male die core 51 when the injection molding is carried out, the arc-shaped grooves 53 are formed in the left end and the right end of the middle area on the male die core 51, the light-isolating retainer ring 2 is embedded into the arc-shaped grooves 53 to be fixed, then the main sprue 57, the first branch sprue 58 and the second branch sprue 59 are fed and injected, the injection molding is carried out in three areas, in order to meet the overall quality requirement of the optical spherical cover, the purpose of simultaneous step injection is achieved by adjusting the mode that the cross section area of the runner is adjusted through the first runner adjusting valve 61 and the second runner adjusting valve 62, and the injection molding can be completed in three areas simultaneously.
The optical ball cover is made of transparent optical PC materials or materials which can normally transmit light and have colors; the optical dome can meet the imaging requirement of the camera lens, but is not limited to this.
As shown in fig. 4 and fig. 7, in an embodiment of the present invention, after step S3, a transition R angle is further disposed on the concave mold core 52, where the value range of the transition R angle is 0.5-1.5mm, so that the manufactured concave mold core 52 has no sharp corner at this position, thereby preventing mold steel from directly scratching the light-blocking collar, which causes the light-blocking collar to cut and peel off, and preventing the optical spherical cover from generating impurities, black floating and other appearance abnormalities; after the die is closed, the die concave die core compresses the light-isolating check ring, and injection molding is carried out.
Referring to fig. 4, in an embodiment of the invention, the value range of the width D in the step S1 is 30% -60% of a value twice as large as the half SR of the outer surface of the optical ball cover. So that the imaging requirements of the camera lens can be met.
As shown in fig. 4 and fig. 6, in an embodiment of the present invention, in the step S2, in order to put the light-blocking check ring 2 into the mold 5, the outer diameter B- Φ of the clamping leg of the light-blocking check ring 2 needs to be smaller than the outer diameter Φ of the optical sphere cover by 0.1-0.2mm in a single side, so that the light-blocking check ring can be put into the mold of the optical sphere cover.
Referring to fig. 4, in an embodiment of the invention, in the step S2, the thickness of the first arc-shaped cover 1 is t, and the thicknesses t' and t ″ of the light-shielding check ring 2 and the first arc-shaped cover 1 in the welding range are 1/2t-2/3t, so that the design can be flexible as long as the welding can be smoothly performed.
It is worth mentioning that the light-isolating check ring is used as an insert of the optical ball cover mold, uses a material with performance close to or consistent with that of the optical ball cover, is generally black and light-proof (containing infrared light), is a one-time injection molding part, needs to be injected firstly in production, and is used as the insert of the optical ball cover mold for secondary injection production; two are used, the number of which is symmetrical; because the light-isolating check ring is light-tight, the original integral optical spherical cover is physically separated into 3 independent areas, namely a middle area and two side areas, through the light-isolating check ring 2, light rays passing through the two side areas of the optical spherical cover cannot influence a camera lens positioned in the middle area through the wall thickness t (namely the solid part of the middle area). Light rays entering the optical spherical cover through the two side areas can not enter the camera lens finally due to the fact that the light rays are lower than the camera lens or are shielded by internal assembly parts and the like.
Referring to fig. 4 and fig. 6, in an embodiment of the present invention, the outer diameter Φ of the flange of the optical spherical cap is generally 2 times the radius SR of the outer surface of the first arc-shaped cap 1, and the single side is enlarged by 2-8mm according to the assembly requirement; the thickness B-d of the flange edge of the light-isolating retainer ring 2 is consistent with the thickness d of the flange edge of the optical spherical cover, the thickness range is generally between 1.5mm and 4mm, and the light-isolating retainer ring is convenient to place and fix on the convex mold core 52 of the mold.
Referring to fig. 4, in an embodiment of the invention, the radius SR of the outer surface of the first arc-shaped cover body 1 and the radius B-SR of the outer surface of the light-shielding retainer 2 in the step S2 are between 40 mm and 100 mm. The values of the radius SR of the outer surface of the first arc-shaped cover body 1 and the radius B-SR of the outer surface of the light-isolating retainer ring 2 can be obtained by directly extracting outer diameter data through common design software on the market, such as PRO-E, UG, Solid Works and the like.
As shown in fig. 5 and fig. 9, in an embodiment of the present invention, after the step S4, positioning holes 7 for positioning the optical ball cover and limiting the middle and two side areas are formed on the injection-molded optical ball cover and the mold 5, which can be flexibly designed.
It is worth mentioning that according to the difference of the size of the middle area D, the cross section area of the sub-runner is adjusted by adopting structures such as bolts, the distance between the light-proof retainer rings is narrow, the glue amount required by the two side areas is large, the cross section area is relatively large, the distance between the light-proof retainer rings is wide, the glue amount required by the two side areas is relatively small, and the cross section area is relatively small; after the adjustment is in place in the die test debugging, the locking position can meet the requirement of subsequent production.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. A manufacturing method of a secondary injection molding camera optical spherical cover with a shading function is characterized by comprising the following steps:
s1, a worker designs a first arc-shaped cover body according to the diameter length of the outer diameter of the camera lens, wherein the design width of the first arc-shaped cover body is D;
step S2, light-isolating check rings for isolating light rays are arranged at the left end and the right end of the first arc-shaped cover body in a matching mode, and the radius SR of the outer surface of the first arc-shaped cover body is consistent with the radius B-SR of the outer surface of each light-isolating check ring;
step S3, a second arc-shaped cover body and a third arc-shaped cover body are respectively connected to the left end and the right end of the first arc-shaped cover body, the second arc-shaped cover body is connected with the left end face of the first arc-shaped cover body under the action of the light-isolating check ring, and the third arc-shaped cover body is connected with the right end face of the first arc-shaped cover body under the action of the light-isolating check ring, so that the light-isolating check ring is located at the connection position of the first arc-shaped cover body and the second arc-shaped cover body, and the first arc-shaped cover body and the third arc-;
and S4, manufacturing a mold meeting the requirements through the width and the position of the first arc-shaped cover body and the light-isolating check ring, embedding the light-isolating check ring into the mold by a worker after the mold is formed, starting injection molding, and taking out the injection-molded optical ball cover after the injection molding is finished.
2. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the light-blocking retainer ring, the first arc-shaped cover body, the second arc-shaped cover body and the third arc-shaped cover body form an optical ball cover through injection molding and integrated molding, and the first arc-shaped cover body is an intermediate imaging area.
3. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the mold in the step S4 includes a male mold core and a female mold core, the male mold core is provided with an arc-shaped groove for placing the light-blocking check ring, the mold is divided into three regions by the action of the arc-shaped groove, the three regions are respectively a middle region for injection molding to form a first arc-shaped cover body, a left region for injection molding to form a second arc-shaped cover body and a right region for injection molding to form a third arc-shaped cover body, the mold is provided with a main gate for casting the middle region, a first branch gate for casting the left region and a second branch gate for casting the right region, feed inlets of the main gate, the first branch gate and the second branch gate are all connected through a flow passage, and the male mold core and the female mold core are matched to compress the light-blocking check ring; the left end and the right end in the runner are respectively provided with a first runner regulating valve and a second runner regulating valve, the first runner regulating valve is arranged on the right side of the first branch sprue, and the second runner regulating valve is arranged on the left side of the second branch sprue.
4. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the value range of the width D in the step S1 is 30% -60% of a half SR value of the outer surface of the optical ball cover.
5. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the step S2 further includes that, in the manufacturing process, in order to put the light-blocking check ring into the mold, the outer diameter B- Φ of the clamp pin of the light-blocking check ring needs to be smaller than the outer diameter Φ of the optical sphere cover by 0.1-0.2mm, in combination with the flange structure of the optical sphere cover.
6. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: in the step S2, the thickness of the first arc-shaped cover body is t, and the thicknesses t' and t ″ of the light-blocking check ring and the first arc-shaped cover body are welded together, and the range is 1/2t-2/3 t.
7. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the outer diameter phi of the flange edge of the optical spherical cover is generally 2 times of the radius SR of the outer surface of the first arc cover body, and the single edge is enlarged by 2-8mm according to the assembly requirement; the thickness B-d of the flange edge of the light-isolating retainer ring is consistent with the thickness d of the flange edge of the optical ball cover, and the thickness range is generally between 1.5mm and 4 mm.
8. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: the value range of the radius SR of the outer surface of the first arc-shaped cover body and the radius B-SR of the outer surface of the light-isolating retainer ring in the step S2 is between 40 mm and 100 mm.
9. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: and step S3, setting a transition R angle on the concave mould core of the mould, wherein the value range of the transition R angle is 0.5-1.5 mm.
10. The method for manufacturing the secondary injection molding camera optical spherical cover with the shading function according to claim 1, is characterized in that: and step S4 is followed by further comprising the step of forming positioning openings for assembling and positioning the optical ball cover and limiting the middle and two side areas on the injection molded optical ball cover and the mold.
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| CN201911394982.6A CN111113790A (en) | 2019-12-30 | 2019-12-30 | Manufacturing method of secondary injection molding camera optical spherical cover with shading function |
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| CN201911394982.6A CN111113790A (en) | 2019-12-30 | 2019-12-30 | Manufacturing method of secondary injection molding camera optical spherical cover with shading function |
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