CN111633920B - Mold and method for molding earpiece filaments - Google Patents
Mold and method for molding earpiece filaments Download PDFInfo
- Publication number
- CN111633920B CN111633920B CN202010510268.5A CN202010510268A CN111633920B CN 111633920 B CN111633920 B CN 111633920B CN 202010510268 A CN202010510268 A CN 202010510268A CN 111633920 B CN111633920 B CN 111633920B
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- workpiece
- injection molding
- die
- cavity
- mold
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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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
- B29C45/14008—Inserting articles into the mould
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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
- B29C45/14065—Positioning or centering articles in the mould
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Mold and method for molding earpiece filaments. Mainly solves the problems that the prior earpiece wire is easy to deform during processing and affects the processing quality of the earpiece wire. The method is characterized in that: the second die is internally provided with a cavity (3) for placing a workpiece (9) or a cavity for placing the workpiece is arranged between the second die and the first die, the cavity is internally provided with a fixing piece (31) for being connected with a fixed end (91) of the workpiece (9), and one end of the cavity is provided with a through groove (32) for extending out a pulling end (92) of the workpiece. The invention provides a die and a method for molding and processing earpiece wires, wherein a fixing piece is arranged in a cavity of the die and used for fixing one end of each earpiece wire, the other end of each earpiece wire penetrates through a second die to be connected with a power source, the workpiece is ensured not to deform due to the fact that the workpiece is always stressed during injection molding, the injection molding effect is ensured, and the defect that traditional contact pin type processing is difficult is overcome.
Description
Technical Field
The invention relates to the field of spectacle processing, in particular to a die and a method for molding and processing earpiece wires.
Background
At present, there is a kind of glasses leg wire whose skeleton is metal-encased plastic on the market, when this kind of leg wire is processed, the traditional processing technique is insertion of contact pin type or electroplating, if it is processed by injection molding, it is easy to deform, and the processing quality of leg wire injection molding is affected.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides a die and a method for molding and processing the earpiece wire, which mainly solve the problem that the existing earpiece wire is easy to deform during processing and the processing quality of the earpiece wire is affected.
The technical scheme adopted by the invention is as follows:
The mold for the molding processing of the earpiece wire comprises a first mold and a second mold, wherein a cavity for placing a workpiece is arranged in the second mold or a cavity for placing the workpiece is arranged between the second mold and the first mold, a fixing piece connected with a fixed end of the workpiece is arranged in the cavity, and a through groove for extending out a pulling end of the workpiece is formed in one end of the cavity.
The fixing piece is a locating pin matched with a locating hole formed in the fixing end.
The second die is provided with a positioning boss, and the through groove passes through the positioning boss.
And the first die is provided with a positioning groove matched with the positioning boss.
And a sinking groove for placing the hinge of the workpiece is arranged in the cavity.
And an extension line of the axis of the through groove passes through the center of the positioning pin.
And two cavities are arranged in the second die.
The molding method of the earpiece wire comprises the mold for molding the earpiece wire, comprising the following steps,
Step one, blanking a workpiece,
Step two, placing the workpiece into a cavity, connecting the fixed end of the workpiece with a fixed piece, and enabling the pulling end of the workpiece to extend out of a second die through a through groove to be connected with a linear power source;
Step three, die assembly;
step four, starting injection molding, and simultaneously starting a linear power source to pull the pulling end outwards for 15-25 seconds;
fifthly, maintaining pressure continuously, and increasing the pulling force of a linear power source to separate the pulling end from the workpiece and pull out the workpiece;
And step six, opening the die, taking out the workpiece, and cutting to remove the fixed end.
The linear power source is an air cylinder or a hydraulic cylinder.
The plastic adopted by the injection molding method is ca or cp.
The beneficial effects of the invention are as follows: the invention provides a die and a method for molding and processing earpiece wires, wherein a fixing piece is arranged in a cavity of the die and used for fixing one end of each earpiece wire, the other end of each earpiece wire penetrates through a second die to be connected with a power source, the workpiece is ensured not to deform due to the fact that the workpiece is always stressed during injection molding, the injection molding effect is ensured, and the defect that traditional contact pin type processing is difficult is overcome.
Drawings
Fig. 1 is a schematic perspective view of a second die according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Fig. 3 is an enlarged schematic view at B in fig. 2.
Fig. 4 is a schematic perspective view of a first die according to an embodiment of the present invention.
Fig. 5 is a schematic view of a workpiece of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings: as shown in the figure, the mold for molding the earpiece wire comprises a first mold 1 and a second mold 2, wherein a cavity 3 for placing a workpiece 9 is arranged in the second mold or a cavity for placing the workpiece is arranged between the second mold and the first mold, a fixing piece 31 for connecting with a fixed end 91 of the workpiece 9 is arranged in the cavity, and a through groove 32 for extending a pulling end 92 of the workpiece is arranged at one end of the cavity. A fixing piece is arranged in the cavity and used for fixing one end of the foot wire, the other end of the foot wire penetrates through the second die to be connected with a power source, and the workpiece is guaranteed to be always stressed and not deformed during injection molding, so that the injection molding effect is guaranteed. The fixing piece can be a positioning pin and the like, and the corresponding positioning pin can be a positioning hole formed in the pin wire, or a fixing plate additionally arranged on the pin wire during blanking, and the positioning hole formed in the fixing plate, on the other hand, after die assembly, the die cavity and the through groove are in contact with the outer wall of the workpiece, and further can be sealed.
In this embodiment, as shown in the drawing, the fixing member is a positioning pin adapted to the positioning hole 93 provided on the fixing end.
In this embodiment, as shown, the second die is provided with a positioning boss 33 through which the through slot passes. The stability under the stress is ensured.
In this embodiment, as shown in the drawing, the first die is provided with a positioning groove 11 adapted to the positioning boss.
In this embodiment, as shown, a sink 34 is provided in the cavity for receiving a hinge 94 of a workpiece. When the hinge is not in injection molding, the hinge is arranged in the sinking groove.
In this embodiment, as shown in the figure, an extension line of the axis of the through slot passes through the center of the positioning pin. So that the two parts are on the same straight line, and the stress is convenient.
In this embodiment, as shown in the figure, two cavities are provided in the second mold. Two workpieces can be processed simultaneously.
The molding method of the earpiece wire comprises the mold for molding the earpiece wire, comprising the following steps,
Step one, blanking a workpiece,
Step two, placing the workpiece into a cavity, connecting the fixed end of the workpiece with a fixed piece, and enabling the pulling end of the workpiece to extend out of a second die through a through groove to be connected with a linear power source;
Step three, die assembly;
step four, starting injection molding, and simultaneously starting a linear power source to pull the pulling end outwards for 15-25 seconds;
Fifthly, maintaining pressure continuously, and increasing the pulling force of a linear power source to separate the pulling end from the workpiece and pull out the workpiece; the connection part of the pulling end and the foot wire is a weaker part, and can be realized by reducing the cross-sectional area, and the pulling force can be increased to directly break after injection molding is completed.
And step six, opening the die, taking out the workpiece, and cutting to remove the fixed end.
The linear power source is an air cylinder or a hydraulic cylinder.
The plastic adopted by the injection molding method is ca or cp. ca plastic, the Chinese cultural name is acetate fiber, acetate fiber or acetate cellulose fiber, and cp is propionic acid fiber.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiments described with reference to the drawings are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention. The examples should not be construed as limiting the invention, but any modifications based on the spirit of the invention should be within the scope of the invention.
Claims (9)
1. The earpiece silk injection molding method comprises a mold for earpiece silk injection molding processing, and is characterized in that: the mold for molding the earpiece wire comprises a first mold (1) and a second mold (2), wherein a cavity (3) for placing a workpiece (9) is arranged in the second mold, or a cavity for placing the workpiece is arranged between the second mold and the first mold, a fixing piece (31) for connecting with a fixed end (91) of the workpiece (9) is arranged in the cavity, and a through groove (32) for extending out a pulling end (92) of the workpiece is arranged at one end of the cavity;
The method comprises the steps of,
Step one, blanking a workpiece,
Step two, placing the workpiece into a cavity, connecting the fixed end of the workpiece with a fixed piece, and enabling the pulling end of the workpiece to extend out of a second die through a through groove to be connected with a linear power source;
Step three, die assembly;
step four, starting injection molding, and simultaneously starting a linear power source to pull the pulling end outwards for 15-25 seconds;
fifthly, maintaining pressure continuously, and increasing the pulling force of a linear power source to separate the pulling end from the workpiece and pull out the workpiece;
And step six, opening the die, taking out the workpiece, and cutting to remove the fixed end.
2. The temple wire injection molding method according to claim 1, wherein: the linear power source is an air cylinder or a hydraulic cylinder.
3. The temple wire injection molding method according to claim 2, wherein: the plastic adopted by the injection molding method is ca or cp.
4. The temple wire injection molding method according to claim 1, wherein: the fixing piece is a positioning pin matched with a positioning hole (93) arranged on the fixing end.
5. The temple wire injection molding method according to claim 1, wherein: the second die is provided with a positioning boss (33), and the through groove passes through the positioning boss.
6. The temple wire injection molding method of claim 5, wherein: and the first die is provided with a positioning groove (11) matched with the positioning boss.
7. The temple wire injection molding method according to claim 1, wherein: a sink (34) for placing a hinge (94) of the workpiece is arranged in the cavity.
8. The temple wire injection molding method of claim 4 wherein: and an extension line of the axis of the through groove passes through the center of the positioning pin.
9. The temple wire injection molding method according to claim 1, wherein: and two cavities are arranged in the second die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010510268.5A CN111633920B (en) | 2020-06-08 | 2020-06-08 | Mold and method for molding earpiece filaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010510268.5A CN111633920B (en) | 2020-06-08 | 2020-06-08 | Mold and method for molding earpiece filaments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111633920A CN111633920A (en) | 2020-09-08 |
| CN111633920B true CN111633920B (en) | 2024-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010510268.5A Active CN111633920B (en) | 2020-06-08 | 2020-06-08 | Mold and method for molding earpiece filaments |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670393B (en) * | 2022-04-08 | 2023-11-21 | 温州市瓯海眼镜有限公司 | Automatic glasses leg pin inserting machine for glasses production |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394939A (en) * | 2019-07-26 | 2019-11-01 | 厦门立扬光学科技有限公司 | Eyeglass leg forming mold and processing molding method |
| CN212352750U (en) * | 2020-06-08 | 2021-01-15 | 温州市百强光学有限公司 | Mould for injection moulding processing of spectacle temple |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179845A (en) * | 1999-12-22 | 2001-07-03 | Marumoto Sogyo:Kk | Method for preparing eyeglass end cover |
| KR100987599B1 (en) * | 2009-02-11 | 2010-10-12 | 조용돌 | Molding device for manufacturing glasses legs |
| CN103552203A (en) * | 2013-11-14 | 2014-02-05 | 丹阳市国新光学眼镜有限公司 | Injection molding method for double-colored glasses leg containing metal decorative sheet |
| US10201105B2 (en) * | 2015-06-22 | 2019-02-05 | Apple Inc. | Combination injection molding and hydroforming |
| KR20180007746A (en) * | 2016-07-14 | 2018-01-24 | 김준엽 | Tips cover for the temple and its mold manufacture with a cushion capabilities |
| CN109591260B (en) * | 2019-01-14 | 2020-08-25 | 台州市凯亮眼镜股份有限公司 | Injection mold for multicolor spectacle frames |
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2020
- 2020-06-08 CN CN202010510268.5A patent/CN111633920B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394939A (en) * | 2019-07-26 | 2019-11-01 | 厦门立扬光学科技有限公司 | Eyeglass leg forming mold and processing molding method |
| CN212352750U (en) * | 2020-06-08 | 2021-01-15 | 温州市百强光学有限公司 | Mould for injection moulding processing of spectacle temple |
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| CN111633920A (en) | 2020-09-08 |
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Effective date of registration: 20240612 Address after: No. 20 Nanwei 1st Road, Cihu, Ouhai, Wenzhou City, Zhejiang Province, 325000 Applicant after: Xu Yanjun Country or region after: China Address before: 325000 Building 2, No.20, Nanwei 1st Road, Ouhai Economic Development Zone, Wenzhou City, Zhejiang Province Applicant before: Wenzhou hundred Optical Co.,Ltd. Country or region before: China |
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