CN109531914B - Manufacturing process of sticky nose pad - Google Patents
Manufacturing process of sticky nose pad Download PDFInfo
- Publication number
- CN109531914B CN109531914B CN201811208341.2A CN201811208341A CN109531914B CN 109531914 B CN109531914 B CN 109531914B CN 201811208341 A CN201811208341 A CN 201811208341A CN 109531914 B CN109531914 B CN 109531914B
- Authority
- CN
- China
- Prior art keywords
- injection molding
- nose pad
- cavity
- eye end
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/12—Nose pads; Nose-engaging surfaces of bridges or rims
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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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
Abstract
A nose pad of a kind of can be glued body holds in the palm the preparation method, dispose a nose pad and support the sheet mould first, the said nose pad supports the sheet mould to include the mould body, the said mould body includes multiple mould cavities, a main runner, multiple branch runners; the mould cavity comprises an injection molding cavity and an accommodating cavity which are adjacent to each other; the manufacturing process comprises the following steps: performing primary injection molding; roasting the materials; and (5) secondary injection molding. A nose pad capable of being adhered comprises a support plate and a support sheet, wherein the support plate comprises a combining part and an adhering part, and two round holes are formed in the combining part at intervals; the backing sheet includes near eye end and far eye end, near eye end parcel is lived the joint portion, just near eye end with joint portion integrated into one piece, far eye end is the arc structure, the material of backing sheet is silica gel. The nose pad is subjected to rapid secondary injection molding, so that the supporting plate and the supporting sheet of the nose pad are integrally molded, and the firmness of connection between the supporting plate and the supporting sheet is greatly improved; the nose pad capable of being stuck on the body is simple to install and operate, convenient and easy to implement.
Description
[ technical field ] A method for producing a semiconductor device
The invention particularly relates to a manufacturing process of a sticky nose pad.
[ background of the invention ]
Glasses are already an aid which people can not leave, and have a plurality of classifications of myopia glasses, hyperopia glasses, sunglasses, sport glasses and the like. As sports glasses, the nose pads are accessories of the glasses frame which play a supporting role on the nose bridge and are in direct contact with the skin of the eyes, metal materials are avoided in the use of the materials, so that the injury to wearing personnel is prevented, and particularly, relatively soft materials such as rubber and silica gel are used as much as possible for the nose pad parts of the glasses. The supporting sheet and the supporting plate of the existing nose pad structure are connected through an adhesive, so that the firmness is poor and the nose pad is easy to fall off.
[ summary of the invention ]
The invention aims to solve one of the technical problems and provides a manufacturing process of a sticky nose pad.
The invention is realized by the following steps: a nose pad of a kind of can be glued body holds in the palm the preparation method, dispose a nose pad and support the sheet mould first, the said nose pad supports the sheet mould to include the mould body, the said mould body includes multiple mould cavities, a main runner, multiple branch runners; the mold cavity comprises an injection molding cavity and an accommodating cavity which are adjacent to each other, and the bottom surface of the accommodating cavity is higher than the injection molding cavity; one end of each branch flow channel is communicated with the main flow channel, and the other end of each branch flow channel is communicated with an injection molding cavity;
the manufacturing process comprises the following steps:
(1) primary injection molding: the support plate is formed by one-time injection molding, the one-time injection molding temperature is 250-270 ℃, and the one-time injection molding time is 20-40 seconds;
the supporting plate comprises a combining part, and two round holes are formed in the combining part at intervals;
(2) baking materials: heating liquid silica gel for 3h at 90 ℃;
(3) secondary injection molding: placing the supporting plate into an accommodating cavity of the mold body, placing the mold body into an injection molding machine, injecting liquid silica gel into the mold cavity, flowing to each branch flow channel through the main flow channel, entering the injection molding cavity, extending to the joint part of the supporting plate, penetrating to the upper surface and the bottom surface through two round holes of the joint part until the joint part is wrapped by the liquid silica gel, and performing secondary injection molding to obtain the integrally-formed nose support;
wherein the secondary injection molding temperature is 160-175 ℃, and the pressure is 20-40 MPa.
Preferably, two positioning pins are arranged in the accommodating cavity; the support plate further comprises a bonding part, wherein two positioning holes are formed in the bonding part, and the two positioning pins respectively penetrate through the two positioning holes.
Preferably, a thimble channel is arranged in the accommodating cavity;
the nose support sheet die further comprises an upper base, a lower base, two guide posts, a plurality of thimbles and two springs; the die body is arranged on the upper base, and each guide column sequentially penetrates through the lower base, the upper base and the die body from bottom to top; the two springs are respectively sleeved on the two guide columns, and each spring is fixedly connected with the lower base and the upper base; the bottom end of each thimble is fixed on the lower base, and the upper end of the thimble sequentially penetrates through the upper base and the thimble channel of the containing cavity.
The second technical problem to be solved by the present invention is to provide a nose pad capable of being adhered to body, which is manufactured by the above manufacturing process.
The invention is realized by the following steps: the nose pad capable of being stuck comprises a support plate and a support sheet, wherein the support plate comprises a combination part and a sticking part, and two round holes are formed in the combination part at intervals; the backing sheet includes near eye end and far eye end, far eye end parcel is lived the joint portion, just far eye end with joint portion integrated into one piece, near eye end is the arc structure, the material of backing sheet is silica gel.
Preferably, a plurality of air holes are arranged on the supporting sheet adjacent to the near-eye end.
The invention has the advantages that: the rapid secondary injection molding of the nose pad is realized by utilizing the height difference between the injection molding cavity and the accommodating cavity in the mold cavity, so that the supporting plate and the supporting sheet of the nose pad are integrally molded, and the connection firmness between the supporting plate and the supporting sheet is greatly improved; the nose pad capable of being stuck on the body is simple to install and operate, convenient and easy to implement.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the nose pad for body adhesion of the present invention.
Fig. 2 is a schematic structural view of a nose pad supporting piece mold in the invention.
FIG. 3 is a schematic structural view of a mold body according to the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
[ detailed description ] embodiments
Referring to fig. 1, a nose pad 100 capable of being adhered comprises a support plate 1 and a support plate 2, wherein the support plate 1 comprises a combining part 11 and an adhering part 12, and two round holes 13 are formed in the combining part 11 at intervals; the bonding portion 12 is provided with two positioning holes 13, and the two positioning pins respectively penetrate through the two positioning holes 13. The support sheet 2 comprises a near-eye end 21 and a far-eye end 22, the far-eye end 21 wraps the joint part 11, and the far-eye end 21 and the joint part 11 are integrally formed, so that the support sheet 1 and the support sheet 2 are firmly connected and are not easy to fall off; the near-eye end 22 is an arc-shaped structure, and a plurality of air holes 23 are arranged on the support sheet 2 near the near-eye end 21, so that the eye-protection mask has an air-permeable function. The support sheet 2 is made of silica gel. The bonding part 12 is bonded on the spectacle frame, namely the bonding part 12 and the slot on the spectacle frame are bonded into a whole through an adhesive layer between the support plate 1 and the spectacle frame.
Referring to fig. 2-4, a nose pad mold 200 is first configured, wherein the nose pad mold 200 includes a mold body 3, an upper base 4, a lower base 5, two guide posts 6, a plurality of ejector pins 7, and two springs 8; the mold body 3 includes a plurality of mold cavities 31, a main runner 32, and a plurality of branch runners 33; the mold cavity 31 comprises an injection molding cavity 311 and an accommodating cavity 312 which are adjacent to each other, and two positioning pins 33 and an ejector pin channel 32 are arranged in the accommodating cavity 312; the bottom surface of the accommodating cavity 312 is higher than the injection molding cavity 311; one end of each of the branch channels 33 is communicated with the main channel 32, and the other end of each of the branch channels 33 is communicated with an injection molding cavity 311; the die body 3 is arranged on the upper base 4, and each guide column 6 sequentially penetrates through the lower base 5, the upper base 4 and the die body 3 from bottom to top; the two springs 8 are respectively sleeved on the two guide posts 6, and each spring 8 is fixedly connected with the lower base 5 and the upper base 4; the bottom end of each thimble 7 is fixed on the lower base 5, and the upper end of the thimble 7 sequentially passes through the upper base 4 and the thimble passage 32 of the accommodating cavity 312. The two guide posts 6 can keep the upper base 4 and the mould body 3 stable in the injection moulding and demoulding processes.
Referring to fig. 2 and 3 again, the manufacturing process includes the following steps:
(1) primary injection molding: the supporting plate 1 is formed by one-time injection molding, the one-time injection molding temperature is 250-270 ℃, and the one-time injection molding time is 20-40 seconds;
(2) baking materials: heating liquid silica gel for 3h at 90 ℃;
(3) secondary injection molding: placing the support plate 1 into the accommodating cavity 312 of the mold body 3, placing the mold body 3 into an injection molding machine, injecting liquid silica gel into the mold cavity 31, flowing to each branch flow channel 33 through the main flow channel 32, entering the injection molding cavity 311, extending to the joint part 11 of the support plate 1, penetrating to the upper surface and the bottom surface through the two circular holes 13 of the joint part 11 until the joint part 11 is wrapped by the liquid silica gel, and performing secondary injection molding to obtain the integrally-formed nose support 100;
wherein the secondary injection molding temperature is 160-175 ℃, and the pressure is 20-40 MPa.
When injection molding is prepared, the support sheet 2 is placed into the accommodating cavity 312 of the mold body 3, the positioning pins 33 respectively penetrate through the positioning holes 13, a certain injection molding space exists between the bottom of the support sheet 2 and the injection molding cavity 311, and liquid silica gel can flow into the lower part of the support sheet 2 to wrap the joint part 11, so that injection molding is completed; after the injection molding is finished, the mold body 3 is taken out of the injection molding machine and placed on the upper base 4, the guide posts 6 and the ejector pins 7 respectively penetrate through the guide holes 71 and the ejector pin channels 32, at the moment, the mold body 3 is pressed slightly, the ejector pins 7 extend out of the ejector pin channels 32 and abut against the bonding parts 12 of the support sheet 2, and the injection molded nose support 100 is ejected out, so that the demolding is finished.
The body-adherable nose pad 100 is simple to install and operate, strong in firmness, convenient and easy to implement. According to the invention, the rapid secondary injection molding of the nose pads 100 is realized by utilizing the height difference between the injection cavity 311 and the accommodating cavity 312 in the mold cavity 31, and simultaneously, the plurality of molded nose pads 100 can be rapidly and simultaneously demoulded through the matching of the spring 8 and the thimble 7, so that the production efficiency of the nose pads 100 is greatly improved.
Claims (2)
1. A manufacturing process of a sticky nose pad is characterized in that: firstly, configuring a nose support sheet die, wherein the nose support sheet die comprises a die body, and the die body comprises a plurality of die cavities, a main runner and a plurality of branch runners; the mold cavity comprises an injection molding cavity and an accommodating cavity which are adjacent to each other, and the bottom surface of the accommodating cavity is higher than the injection molding cavity; one end of each branch flow channel is communicated with the main flow channel, and the other end of each branch flow channel is communicated with an injection molding cavity;
the manufacturing process comprises the following steps:
(1) primary injection molding: the supporting plate is formed by one-time injection molding, the one-time injection molding temperature is 250-270 ℃, and the one-time injection molding time is 20-40 seconds;
the supporting plate comprises a combining part, and two round holes are formed in the combining part at intervals;
(2) baking materials: heating liquid silica gel for 3h at 90 ℃;
(3) secondary injection molding: placing the supporting plate into an accommodating cavity of the mold body, placing the mold body into an injection molding machine, injecting liquid silica gel into the mold cavity, flowing to each branch flow channel through the main flow channel, entering the injection molding cavity, extending to the joint part of the supporting plate, penetrating to the upper surface and the bottom surface through two round holes of the joint part until the joint part is wrapped by the liquid silica gel, and performing secondary injection molding to obtain the integrally-formed nose support;
wherein, the secondary injection molding temperature is 160-175 ℃, and the pressure is 20-40 MPa;
the nose pad comprises a support plate and a support sheet, the support plate comprises a combining part and a bonding part, and two round holes are formed in the combining part at intervals; the support sheet comprises a near-eye end and a far-eye end, the far-eye end wraps the joint part, the far-eye end and the joint part are integrally formed, the near-eye end is of an arc-shaped structure, and the support sheet is made of silica gel;
the bonding part is bonded on the spectacle frame, namely the support plate and the spectacle frame are bonded into a whole through an adhesive layer between the bonding part and a slot on the spectacle frame;
two positioning pins are arranged in the accommodating cavity; the supporting plate further comprises an adhesive part, two positioning holes are formed in the adhesive part, and the two positioning pins respectively penetrate through the two positioning holes;
a thimble channel is arranged in the accommodating cavity;
the nose support sheet die further comprises an upper base, a lower base, two guide posts, a plurality of thimbles and two springs; the die body is arranged on the upper base, and each guide column sequentially penetrates through the lower base, the upper base and the die body from bottom to top; the two springs are respectively sleeved on the two guide columns, and each spring is fixedly connected with the lower base and the upper base; the bottom end of each thimble is fixed on the lower base, and the upper end of the thimble sequentially penetrates through the upper base and the thimble channel of the containing cavity.
2. The process for manufacturing the nose pad capable of being adhered to the body according to claim 1, wherein the process comprises the following steps: a plurality of air holes are arranged on the supporting sheet near the near-eye end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208341.2A CN109531914B (en) | 2018-10-17 | 2018-10-17 | Manufacturing process of sticky nose pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208341.2A CN109531914B (en) | 2018-10-17 | 2018-10-17 | Manufacturing process of sticky nose pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109531914A CN109531914A (en) | 2019-03-29 |
| CN109531914B true CN109531914B (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208341.2A Expired - Fee Related CN109531914B (en) | 2018-10-17 | 2018-10-17 | Manufacturing process of sticky nose pad |
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| Country | Link |
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| CN (1) | CN109531914B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815881A (en) * | 2019-11-18 | 2020-02-21 | 青田美奇烫画科技有限公司 | Board-like glasses and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624914A (en) * | 2013-10-16 | 2014-03-12 | 王宏晶 | Production method for glasses with secondary-injected nose support and structure of glasses |
| CN207859360U (en) * | 2018-01-05 | 2018-09-14 | 东莞市三明塑胶五金制品有限公司 | A kind of injection mold of plastic bottle lid |
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2018
- 2018-10-17 CN CN201811208341.2A patent/CN109531914B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109531914A (en) | 2019-03-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 Termination date: 20211017 |
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| CF01 | Termination of patent right due to non-payment of annual fee |