CN114347380A - Method for manufacturing nose pad - Google Patents
Method for manufacturing nose pad Download PDFInfo
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- CN114347380A CN114347380A CN202210073363.2A CN202210073363A CN114347380A CN 114347380 A CN114347380 A CN 114347380A CN 202210073363 A CN202210073363 A CN 202210073363A CN 114347380 A CN114347380 A CN 114347380A
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 416
- 238000002347 injection Methods 0.000 claims abstract description 139
- 239000007924 injection Substances 0.000 claims abstract description 139
- 239000000203 mixture Substances 0.000 claims abstract description 67
- 239000003086 colorant Substances 0.000 claims abstract description 42
- 238000002156 mixing Methods 0.000 claims abstract description 38
- 239000000126 substance Substances 0.000 claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 11
- 229920006221 acetate fiber Polymers 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 18
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000011797 cavity material Substances 0.000 description 90
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 239000000741 silica gel Substances 0.000 description 8
- 229910002027 silica gel Inorganic materials 0.000 description 8
- 239000000499 gel Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- FINOAUDUYKVGDS-UHFFFAOYSA-N (2-tert-butylcyclohexyl) acetate Chemical compound CC(=O)OC1CCCCC1C(C)(C)C FINOAUDUYKVGDS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
Images
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- 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 nose pad, which comprises the steps of alternately injecting materials with different colors into a mold cavity through the same injection molding port; the rear material pushes the front material to move in the die cavity, and the materials are contacted and mixed to generate a mixed color substance; when injecting the rear material, the material can push the front material to move, and then the rear material can push the formed object to move in the die cavity; enabling the front material, the rear material and the color mixture to move in different areas of the die cavity, and filling the front material, the rear material and the color mixture in the die cavity in the moving process; until the mold cavity is filled with the previously injected material, the subsequently injected material, and the color blend; part of the materials injected in the front part and the materials injected in the back part are not completely mixed; so that a color mixture can be formed between part of the front injection material and part of the rear injection material; the nose pad formed in this way is rich in color; the nose pad has color mixing effect and color separation effect; and materials with more than two colors can be mixed and displayed in a distinguishing way.
Description
Technical Field
The invention relates to a glasses product, in particular to a method for manufacturing a nose pad.
Background
The nose pad is a part of the spectacle frame which plays a supporting role on the nose bridge, and when people wear the spectacles, the nose pad is used for positioning and supporting the spectacles; with the trend of pursuing fashion, nose pads with colors are more and more popular, the existing manufacturing method of the nose pads with colors is divided into two methods, the first method is to mix silica gel with different colors, and then the mixed silica gel is injected to form the nose pads; secondly, respectively injecting silica gel with different colors into the mold cavity through different injection molding ports to form a nose pad, wherein different areas of the nose pad have different colors; in the first method, the silica gel with different colors can only form a single color after being mixed, so that the nose pad formed by injection molding has a single color; in the second method, since the different regions of the nose pad are directly formed by the different colors of silica gel, the silica gel of one color is correspondingly injected into one region of the mold cavity; if the silica gel is injected into different areas of the mold cavity in sequence, the silica gel cannot flow between the different areas of the mold cavity and can only form color separation effects in the different areas of the nose pad; if the silica gels with different colors are injected in different areas of the mold cavity, the silica gels with different colors can only be mixed a little at the intersection of the different areas in the mold cavity, the silica gels can not flow between the different areas of the mold cavity, and the silica gels can only form color separation effects in the different areas of the nose pad; the nose pads manufactured by the two methods cannot form a color mixing effect.
Disclosure of Invention
The invention provides a method for manufacturing a nose pad, which is characterized in that materials with different colors are alternately injected into an injection molding port, and the materials with different colors enter a mold cavity to be mixed and flow in the mold cavity, so that the nose pad with a color mixing effect and a color separation effect is formed.
In order to achieve the purpose, the technical scheme of the invention is as follows: a method for manufacturing a nose pad generally comprises the following steps:
and a, connecting more than two material injection devices with an injection molding opening of a mold.
B, alternately injecting materials with different colors into the die cavity by more than two material injection devices until the die cavity is filled; the materials with different colors flow in the die cavity, and a mixed color formed by mixing the materials with different colors is arranged in the die cavity; the different colored materials and color blends fill the mold cavity.
And c, cooling and forming the nose pad.
In the method, materials with different colors are added into more than two material injection devices; when more than two material injection devices are connected with the injection port, the materials output from the material injection devices enter the mold cavity from the injection port; alternately injecting materials with different colors into the die cavity; when the materials injected later are injected into the mold cavity, the materials injected earlier can be pushed to flow in the mold cavity, and meanwhile, in the flowing process, due to the fact that the materials with different colors are subjected to different gravity, the materials with different colors have different flowability in the mold cavity, and therefore part of the materials in front and part of the materials in back can be in contact mixing to generate mixed color materials; when the post-injection material is injected, the post-injection material pushes the front-injection material to flow, and the post-injection material pushes the mixed color material to flow in the mold cavity; allowing the forward injected material, the post injected material, and the color blend to flow in different areas of the mold cavity until the forward injected material, the post injected material, and the color blend fill the mold cavity; meanwhile, as the materials with different colors are injected alternately, the injected part of the materials injected in the front part and the injected part of the materials injected in the back part are mixed, and as the materials with different colors flow in the die cavity and the materials with different colors have different flowability in the die cavity, the part of the materials injected in the front part and the materials injected in the back part are not completely mixed; so that a color mixture can be formed between part of the front injection material and part of the rear injection material; the nose pad formed in this way is rich in color; the nose pad has color mixing effect and color separation effect; and materials with more than two colors can be mixed and displayed in a distinguishing way.
Further, step b specifically includes:
s1, injecting a first material into a mold cavity by one material injection device.
S2, injecting a second material into the die cavity by the other material injection device.
S3, the second material drives the first material to flow in the die cavity; during the flowing process, a first mixed color substance generated by mixing a second material with the first material; the first material, the second material, and the first color mixture are filled in the mold cavity.
Further, if in step a, three or more injection devices are connected to the injection port of the mold, step b specifically includes:
s1, injecting a first material into a mold cavity by one material injection device.
S2, injecting a second material into the die cavity by the other material injection device.
S3, the second material drives the first material to flow in the die cavity; during the flow, there is a first color mixture resulting from the mixing of the second material with the first material.
S4, injecting a third material into the die cavity by the other material injection device.
S5, the third material flows the first material, the second material and the first mixed color material in the mold cavity; during the flowing process, a second mixed color substance is generated by mixing a third material with the first material, a third mixed color substance is generated by mixing the third material with the second material, and a fourth mixed color substance is generated by mixing the third material with the first mixed color substance; the first material, the second material, the third material, the first color blend, the second color blend, the third color blend, and the fourth color blend are filled in the mold cavity.
The method comprises adding a third material; the third material is mixed with the first material, the second material and the first mixed color material respectively; thus, the color of the nose pad can be enriched.
Further, S0. presets a first injection time limit and a second injection time limit.
S1 specifically includes: and when the first material injection time limit is ended, the material injection device stops injecting the first material.
S2 specifically includes: and starting timing by the second material injection time limit, injecting a second material into the mold cavity by the other material injection device, and stopping injecting the second material by the material injection device when the timing of the second material injection time limit is ended.
According to the method, the feeding amount of the first material and the feeding amount of the second material are controlled by controlling the feeding time, and the control method is simple.
Further, S0. sets a third injection time limit.
S4 specifically includes: and when the third material injection time limit is timed, the other material injection device injects the third material into the mold cavity, and when the third material injection time limit is timed, the material injection device stops injecting the third material.
Further, S3 further includes: the first mixed color material is mixed with the first material and the second material respectively to generate a new mixed color material.
S5 further includes: the second color mixture, the third color mixture or the fourth color mixture are mixed with the first material, the second material and the third material respectively to generate a new color mixture.
According to the method, the second material entering the mold cavity at the back can drive the first material entering the mold cavity at the front to move, and part of the second material and part of the first material are mixed in the moving process to generate a first mixed color; when the second material moves the first forming object, the first mixed color object is mixed with the first material or the second material to generate a new mixed color object.
The third material entering the cavity at the back drives the first material, the second material and the first color mixture, the second color mixture, the third color mixture and the fourth color mixture formed by mixing in the cavity at the front to move; in the moving process, the second material, the second color mixture, the third color mixture or the fourth color mixture is respectively mixed with the first material, the second material and the third forming object to generate a new color mixture; further enriching the color of the nose pad.
Further, after step c is completed, the method further comprises the following steps: d, spraying attachments on the surface of the nose pad; the attachment forms a spray coating on the surface of the nose pad.
According to the method, the spray coating formed by spraying plays a role in protecting the surface of the nose pad.
Further, step b further includes: setting a material injection interval time limit between two material injection devices, and after one material injection device stops injecting materials, starting injecting materials by the other material injection device within the material injection interval time limit; so that when the rear material is injected, the material injected into the mold cavity in the front is in a molten or semi-molten state. Above setting up, can make the material of part two kinds of different colours can mix more effectively and produce the colour mixture to colour separation effect is better.
Further, step b further comprises: each material injection device injects more than one time of materials into the die cavity respectively. Above setting, can more conveniently mix.
Further, the material is cellulose acetate with color. Through the arrangement, the formed nose pad has the advantages of toughness, good luster and the like.
Drawings
Fig. 1 is a schematic view of a mold for making a nose pad.
Fig. 2 is a schematic view of a nose pad according to an embodiment.
Fig. 3 is a schematic view of a nose pad according to a second embodiment.
FIG. 4 is a schematic view of an embodiment of a sprayed layer.
FIG. 5 is a schematic view of another embodiment of a sprayed layer.
Fig. 6 is a flow chart in the invention.
Fig. 7 is a schematic view of the color separation effect of the nose pad manufactured by the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-7; a nose pad is provided with a spraying layer 1 on the surface. As shown with reference to FIG. 4; the spray coating 1 can completely cover the surface of the nose pad, as shown in fig. 5; the spray coating 1 can also be covered on the designated area of the nose pad, and further, the spray coating 1 with different colors can be covered on different designated areas of the nose pad. The nose pad comprises an injection molding layer 2 and a mounting piece 3; the mounting 3 is used to mount the nosepiece to the frame of the spectacles. The mounting member 3 is connected with the injection molding layer 2.
The first embodiment; the mounting member 3 is integrally formed with the injection molded layer 2.
Example two; the mounting piece 3 is connected with the injection layer 2 in a split manner; place in the die cavity through the one end with installed part 3, then in the die cavity material injection formation layer 2 of moulding plastics, the one end of layer 2 cladding installed part 3 of moulding plastics realizes moulding plastics layer 2 and is connected with installed part 3.
The mold 4 is provided with one or more mold cavities 5, and the one or more mold cavities 5 communicate with the injection port 41.
The manufacturing method of the nose pad comprises the following steps:
and a, connecting more than two material injection devices with an injection molding opening of a mold. Plastics are added in more than two material injection devices; the injection device heats the plastic to enable the plastic to be in a flowable state; the plastic can be acetate fiber or propionic acid fiber; in the first embodiment, the plastic is acetate fiber; adding different colors of toner in different material injection devices; mixing the toner and acetate fiber to obtain a material with color; the first material and the second material are sequentially filled into the die cavity.
B, setting a material injection interval time limit between the two material injection devices, and after one material injection device stops injecting materials, starting injecting materials by the other material injection device in the material injection interval time limit; so that when the rear material is injected, the material injected into the mold cavity in the front is in a molten or semi-molten state. In example one, the shot interval time period is 0.5 seconds. The two material injection devices alternately inject materials with different colors into the die cavity; each material injection device is used for injecting materials into the mold cavity for more than one time; the materials with different colors flow in the die cavity, and a color mixture formed by mixing the materials with different colors is arranged in the die cavity; the different colored materials and color blends fill the mold cavity. And c, cooling and forming the nose pad.
D, spraying attachments on the surface of the nose pad; the attachment forms a spray coating on the surface of the nose pad.
In the method, materials with different colors are added into more than two material injection devices; when more than two material injection devices are connected with the injection port, the materials output from the material injection devices enter the mold cavity from the injection port; alternately injecting materials with different colors into the die cavity; when the materials injected later are injected into the mold cavity, the materials injected earlier can be pushed to flow in the mold cavity, and meanwhile, in the flowing process, due to the fact that the materials with different colors are subjected to different gravity, the materials with different colors have different flowability in the mold cavity, and therefore part of the materials in front and part of the materials in back can be in contact mixing to generate mixed color materials; when the post-injection material is injected, the post-injection material pushes the front-injection material to flow, and the post-injection material pushes the mixed color material to flow in the mold cavity; allowing the forward injected material, the post injected material, and the color blend to flow in different areas of the mold cavity until the forward injected material, the post injected material, and the color blend fill the mold cavity; meanwhile, as the materials with different colors are alternately injected, the part of the injected materials before and the injected materials after injection are mixed, and as the materials with different colors flow in the die cavity and the materials with different colors have different flowability in the die cavity, the part of the injected materials before and the injected materials after injection cannot be completely mixed; so that a color mixture can be formed between part of the front injection material and part of the rear injection material; the nose pad formed in this way is rich in color; the nose pad has color mixing effect and color separation effect; and materials with more than two colors can be mixed and displayed in a distinguishing way. The spraying layer formed by spraying can protect the surface of the nose pad.
In the first embodiment, the installation part and the injection molding layer are integrally molded; and the formed mounting piece also has color mixing effect and color separation effect.
If two material injection devices are used for injecting materials, the step b is specifically carried out as follows:
s0. the first and second injection time periods are preset.
S1, injecting a first material into a mold cavity by one material injection device; the method comprises the following steps that a first material injection time limit starts to time, wherein a material injection device injects first materials into a mold cavity, and when the first material injection time limit is ended, the material injection device stops injecting the first materials.
S2, injecting a second material into the die cavity by the other material injection device; specifically, the second material injection time limit is started to time, the other material injection device injects the second material into the mold cavity, and when the second material injection time limit is ended to time, the material injection device stops injecting the second material.
S3, the second material drives the first material to flow in the die cavity; during the flowing process, a first mixed color substance generated by mixing a second material with the first material; the first material, the second material, and the first color mixture are filled in the mold cavity.
Step b comprises two material injection modes; the explanation will be given by taking the example of using two injection devices for injecting:
the first material injection mode is as follows: the first material injection device and the second material injection device only perform material injection once. Firstly, injecting enough first material into a mold cavity; a sufficient amount of the second material is then injected into the mold cavity.
The second material injection mode is as follows: the first material injection device and the second material injection device respectively inject materials for multiple times. Dividing the first material to be injected into the mold cavity into more than two parts, in one embodiment three parts; the second material to be injected into the mold cavity is divided into two or more portions, in one embodiment three portions.
Firstly, injecting a first part of first material into a mold cavity, and then injecting a first part of second material into the mold cavity; then injecting a second part of the first material into the die cavity, and then injecting a second part of the second material into the die cavity; a third charge of the first material is then injected into the mold cavity, followed by a third charge of the second material. The second material injection mode is to mix the first material and the second material for many times.
B, at least forming more than one color effect; the explanation will be given by taking the example of using two injection devices for injecting:
the color effect of the first material injection mode is as follows:
the first material is red cellulose acetate; the second material is yellow acetate fiber. A first mixed color substance generated by physically mixing the first material and the second material is arranged at the position where the first material and the second material are contacted; the first color blend may be orange acetate fibers according to the color blending principle. There is an orange-red acetate fiber produced by mixing the first material with the first color mixture. There is orange-yellow acetate fiber produced by mixing the second material with the first color mixture.
The color effect of the second material injection mode is as follows:
the first material is blue cellulose acetate; the second material is yellow acetate fiber. A first mixed color substance generated by physically mixing the first material and the second material is arranged at the position where the first material and the second material are contacted; according to the color mixing principle, the first color mixture may be green acetate fibers. There is cyan acetate fiber produced by mixing the first material with the first color mixture. There is a yellow-green acetate fiber produced by mixing the second material with the first color mixture.
In another embodiment, the first material and the second material are acetate fibers of the same color.
In yet another embodiment, the first and second materials are both clear acetate fibers to form a transparent nose pad.
If three material injection devices are used for injecting materials, the step b is specifically carried out as follows:
s0. presetting a first material injection time limit, a second material injection time limit and a third material injection time limit.
S1, injecting a first material into a mold cavity by one material injection device; the method comprises the following steps that a first material injection time limit starts timing, wherein a material injection device injects a first material into a mold cavity, and when the timing is finished, the material injection device stops injecting the first material; the feeding amount of the first material is controlled by controlling the feeding time, and the control method is simple.
S2, injecting a second material into the die cavity by the other material injection device; when the second material injection time limit is ended, the material injection device stops injecting the second material; the feeding amount of the second material is controlled by controlling the feeding time, and the control method is simple.
S3, the second material drives the first material to flow in the die cavity; during the flow, there is a first color mixture resulting from the mixing of the second material with the first material.
S4, injecting a third material into the die cavity by the other material injection device; the method specifically comprises the following steps: the third material injection time limit starts timing, the other material injection device injects a third material into the mold cavity, and when the third material injection time limit finishes timing, the material injection device stops injecting the third material; the feeding amount of the third material is controlled by controlling the feeding duration, so that the control method is simple; by adding a third material; the third material is mixed with the first material, the second material and the first mixed color material respectively; thus, the color of the nose pad can be enriched.
S5, the third material flows the first material, the second material and the first mixed color material in the mold cavity; during the flowing process, a second mixed color substance is generated by mixing a third material with the first material, a third mixed color substance is generated by mixing the third material with the second material, and a fourth mixed color substance is generated by mixing the third material with the first mixed color substance; the first material, the second material, the third material, the first color blend, the second color blend, the third color blend, and the fourth color blend are filled in the mold cavity.
In the above-mentioned method, the first step of the method,
s3 further includes: the second material entering the die cavity after the first mixed color material is respectively mixed with the first material and the second material to generate a new mixed color material drives the first material entering the die cavity before to move, and part of the second material is mixed with part of the first material in the moving process to generate the first mixed color material; when the second material drives the first forming object to move, the first mixed color object is mixed with the first material or the second material to generate a new mixed color object; further enriching the color of the nose pad.
S5 further includes: the second color mixture, the third color mixture or the fourth color mixture are mixed with the first material, the second material and the third material respectively to generate a new color mixture. The third material entering the cavity at the back drives the first material, the second material and the first color mixture, the second color mixture, the third color mixture and the fourth color mixture formed by mixing in the cavity at the front to move; in the moving process, the second material, the second color mixture, the third color mixture or the fourth color mixture is respectively mixed with the first material, the second material and the third forming object to generate a new color mixture; further enriching the color of the nose pad.
Claims (10)
1. A manufacturing method of a nose pad is characterized in that: the method comprises the following steps:
step a, connecting more than two material injection devices with an injection molding opening of a mold;
b, alternately injecting materials with different colors into the die cavity by more than two material injection devices until the die cavity is filled; the materials with different colors flow in the die cavity, and a mixed color formed by mixing the materials with different colors is arranged in the die cavity; filling materials with different colors and the mixed color materials in the mold cavity;
and c, cooling and forming the nose pad.
2. The method for manufacturing a nose pad according to claim 1, wherein the method comprises the following steps: the step b specifically comprises the following steps:
s1, injecting a first material into a mold cavity by one material injection device;
s2, injecting a second material into the die cavity by the other material injection device;
s3, the second material drives the first material to flow in the die cavity; during the flowing process, a first mixed color substance generated by mixing a second material with the first material; the first material, the second material, and the first color mixture are filled in the mold cavity.
3. The method for manufacturing a nose pad according to claim 2, wherein: if in the step a, more than three injection devices are connected with the injection molding opening of the mold, the step b specifically comprises the following steps:
s1, injecting a first material into a mold cavity by one material injection device;
s2, injecting a second material into the die cavity by the other material injection device;
s3, the second material drives the first material to flow in the die cavity; during the flowing process, a first mixed color substance generated by mixing a second material with the first material;
s4, injecting a third material into the die cavity by the other material injection device;
s5, the third material flows the first material, the second material and the first mixed color material in the mold cavity; during the flowing process, a second mixed color substance is generated by mixing a third material with the first material, a third mixed color substance is generated by mixing the third material with the second material, and a fourth mixed color substance is generated by mixing the third material with the first mixed color substance; the first material, the second material, the third material, the first color blend, the second color blend, the third color blend, and the fourth color blend are filled in the mold cavity.
4. A method for making a nose pad according to claim 3, wherein: step b also includes: s0. presetting a first material injection time limit and a second material injection time limit;
s1 specifically includes: the first material injection time limit begins timing, wherein a material injection device injects a first material into a mold cavity, and when the timing of the first material injection time limit is ended, the material injection device stops injecting the first material;
s2 specifically includes: and starting timing by the second material injection time limit, injecting a second material into the mold cavity by the other material injection device, and stopping injecting the second material by the material injection device when the timing of the second material injection time limit is ended.
5. The method for manufacturing a nose pad according to claim 4, wherein the method comprises the following steps: step b also includes: s0. presetting a third material injection time limit;
s4 specifically includes: and when the third material injection time limit is timed, the other material injection device injects the third material into the mold cavity, and when the third material injection time limit is timed, the material injection device stops injecting the third material.
6. A method for making a nose pad according to claim 3, wherein: s3 further includes: respectively mixing the first mixed color material with a first material and a second material to generate a new mixed color material;
s5 further includes: the second color mixture, the third color mixture or the fourth color mixture are mixed with the first material, the second material and the third material respectively to generate a new color mixture.
7. The method for manufacturing a nose pad according to claim 1, wherein the method comprises the following steps: after step c is finished, the method also comprises the following steps: d, spraying attachments on the surface of the nose pad; the attachment forms a spray coating on the surface of the nose pad.
8. The method for manufacturing a nose pad according to claim 1, wherein the method comprises the following steps: in the step b, the method further comprises the following steps: setting a material injection interval time limit between two material injection devices, and after one material injection device stops injecting materials, starting injecting materials by the other material injection device within the material injection interval time limit; so that when the rear material is injected, the material injected into the mold cavity in the front is in a molten or semi-molten state.
9. The method for manufacturing a nose pad according to claim 1, wherein the method comprises the following steps: step b also includes: each material injection device injects more than one time of materials into the die cavity respectively.
10. The method for manufacturing a nose pad according to claim 1, wherein the method comprises the following steps: the material is acetate fiber with color.
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| CN202210073363.2A CN114347380B (en) | 2022-01-21 | 2022-01-21 | Method for manufacturing nose pad |
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| CN202210073363.2A CN114347380B (en) | 2022-01-21 | 2022-01-21 | Method for manufacturing nose pad |
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| CN114347380B CN114347380B (en) | 2024-06-25 |
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| JP2020183060A (en) * | 2019-05-07 | 2020-11-12 | 旭電器工業株式会社 | Pattern-style component and method for manufacturing the same |
| CN112092288A (en) * | 2020-04-02 | 2020-12-18 | 宁波双盛塑料机械有限公司 | Multicolor confluence injection mechanism |
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