CN114290606A - Method for manufacturing metal surface decoration with gradual change 3D texture - Google Patents
Method for manufacturing metal surface decoration with gradual change 3D texture Download PDFInfo
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- CN114290606A CN114290606A CN202111360572.7A CN202111360572A CN114290606A CN 114290606 A CN114290606 A CN 114290606A CN 202111360572 A CN202111360572 A CN 202111360572A CN 114290606 A CN114290606 A CN 114290606A
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- metal plate
- texture
- injection molding
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 94
- 239000002184 metal Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000005034 decoration Methods 0.000 title description 4
- 238000001746 injection moulding Methods 0.000 claims abstract description 32
- 239000012778 molding material Substances 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 17
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000010329 laser etching Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Abstract
The invention discloses a method for manufacturing a metal surface decorating part with gradual change 3D textures, which comprises a mold front part and a mold rear part, wherein the mold front part is provided with a 3D texture area, the mold rear part is provided with a core side, and a mold forming part is formed between the mold front part and the mold rear part, and the manufacturing method comprises the following steps: a. placing a metal plate between the front mold part and the rear mold part; b. by closing the mold front and mold back; c. injecting a liquid thermoplastic injection molding material into the mold forming part through the mold rear part, wherein the thermoplastic injection molding material is bonded with the metal plate, and the metal plate is pressed into the 3D texture region of the mold front part by injection pressure; d. after the injection-molded material has undergone a cooling time, a shaped part is formed, and e. The invention directly forms 3D textures in the die, solves the problem that the textures of the rolled metal plate are not well arranged corresponding to the textures of the die, and can obviously improve the texture quality of the formed metal plate.
Description
Technical Field
The invention relates to the technical field of surface treatment, in particular to a method for manufacturing a metal surface decorating part with a gradually-changed 3D texture.
Background
With the development of the automotive industry, automobiles are rapidly becoming the most common vehicle in society as a personal consumer product. The requirements of consumers on the quality of automobiles are increasing day by day, automobile decorating parts are also increasing novel day by day, and the outer surfaces of the automobile decorating parts are also increasing complex.
The outer surface of the automobile decoration part adopts a metal surface with gradually changed 3D textures is the existing development trend, the metal surface with gradually changed 3D textures is developed at present, a metal plate needs to be firstly rolled and preformed into the metal plate with 3D textures, then the metal plate is combined with an injection molding part, and in order to prevent the textures from being flattened in the injection molding process, a corresponding texture structure is usually processed on the cavity surface of a fixed die, so that corresponding textures can be formed on the metal plate after injection molding. However, for the texture which is distributed more densely, a series of defects that the texture of the metal plate and the cavity of the fixed die are not easy to place, and the texture of the metal surface is easily damaged by pressure, the texture is dislocated and the like due to the fact that the texture is not corresponding are easily generated, and the quality of the texture formed on the metal surface is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the method for manufacturing the metal surface decorating part with the gradually-changed 3D texture is provided, the 3D texture is directly formed in the mold, the problem that the texture of the rolled metal plate is not well corresponding to the texture of the mold is solved, and meanwhile, the texture quality of the formed metal plate can be obviously improved.
In order to achieve the above object, the present invention provides the following technical solutions.
A method for manufacturing a metal surface finishing member having a gradually changing 3D texture, comprising a mold front portion and a mold rear portion, one side of the mold front portion having a 3D texture region, an opposite side of the mold rear portion having a core side, a mold molding portion being configured between the mold front portion and the mold rear portion,
the manufacturing method comprises the following steps:
a. placing a metal plate between the front part and the rear part of the mold and fixing the metal plate;
b. by closing the front and rear mold parts, so that the metal plate is located in the mold forming part,
c. injecting a liquid thermoplastic injection molding material into the mold forming part through the mold rear part, wherein the liquid thermoplastic injection molding material is bonded with the metal plate, and the metal plate is pressed into the 3D texture region of the mold front part by injection pressure;
d. waiting for the injection molding material in the molding part of the mold to form a molded part after the cooling time,
e. the front and rear mold portions are opened and the decorated molded article is removed.
The invention has the beneficial effects that: according to the manufacturing method, the 3D texture area is arranged on one side of the front portion of the mold, when the metal plate is manufactured, the metal plate is placed between the front portion of the mold and the rear portion of the mold, liquid thermoplastic injection molding materials are injected into the mold forming portion through the rear portion of the mold, the liquid thermoplastic injection molding materials can be in contact with one side of the metal plate, the other side of the metal plate is pushed by injection pressure to be in contact with the 3D texture area of the front portion of the mold, and therefore the 3D texture surface can be formed on the side of the metal plate, the thermoplastic injection molding materials can be formed at the same time, the formed part and the metal plate can be formed in an adhesion mode, the final formed part can be provided with the 3D metal texture surface, the problem that the texture of the rolled metal plate is not well placed corresponding to the texture of the mold is solved, and the quality of the formed texture of the metal plate can be obviously improved.
As an improvement of the invention, the front part of the die is provided with a positioning pin, and the metal plate is arranged on the front part of the die through the positioning pin. Through the improvement, the metal plate is convenient to fix.
As an improvement of the invention, the 3D texture area at the front part of the die is processed and formed by a laser etching technology.
As a modification of the present invention, the entire front surface of the metal plate is positioned at one side of the front portion of the mold. Through the improvement, the 3D texture surface can be completely formed on the metal plate.
As a modification of the present invention, the metal plate has a thickness of 0.3 mm. Through the improvement, the 3D surface forming effect on the metal plate is ensured to be not damaged at the same time.
As an improvement of the invention, the back surface of the metal plate is provided with a glue film so as to be adhered and molded with the injection molding material. Through the improvement, the metal plate and the injection molding material are connected, and the final formed part and the metal plate are integrated.
As a modification of the invention, the injection molding material is a mixture of polycarbonate and ABS with an addition of 30% of glass fibers.
As a modification of the present invention, the rear portion of the mold has a plurality of injection channels through which injection material is injected into the mold forming portion. Through the improvement, the thermoplastic injection molding material entering the molding part of the mold can be ensured to have enough pressure to push the metal plate to be in contact with the 3D texture area at the front part of the mold.
In step c, the pressure of the injection mold is 2000bar, and the dwell time is 12 s.
Drawings
Fig. 1 is a sectional view of the overall structure of the present invention.
In the figure, 1, the front part of the mould; 1.1, texture area; 2. a rear portion of the mold; 2.1, injection molding a channel; 3. a metal plate; 4. and a positioning pin.
Detailed Description
The invention is further explained with reference to the drawings.
Referring to fig. 1, a method for manufacturing a metal surface decoration with a gradual-change 3D texture includes a mold front part 1 and a mold back part 2, one side of the mold front part 1 has a 3D texture area 1.1, the opposite side of the mold back part 2 has a core side, and the 3D texture area 1.1 of the mold front part 1 and the core side of the mold back part 2 are matched to form a mold forming part.
The 3D texture area 1.1 of the front part 1 of the die is processed by a laser etching technology, and a positioning pin 4 is arranged on one side of the front part 1 of the die, which is provided with the 3D texture area 1.1.
The manufacturing method comprises the following steps:
a. a metal plate 3 is mounted to a die front 1 by a positioning pin 4, and the entire front surface of the metal plate 3 is positioned at one side of the die front 1; in this embodiment, the metal plate 3 is an aluminum plate.
b. The metal plate 3 is positioned in the mold forming section by closing the mold front 1 and the mold back 2;
c. injecting a liquid thermoplastic injection molding material into the mold forming part through the mold rear part 2, wherein the liquid thermoplastic material is bonded to the rear side of the metal plate 3, and the front side of the metal plate 3 is pressed into the 3D texture region 1.1 of the mold front part 1 by injection pressure, so that the front side of the metal plate 3 is in contact with the 3D texture region 1.1, thereby enabling the front side of the metal plate 3 to form a 3D texture surface, and the metal plate 3 is made of 1050 metal plate 3 with a thickness of 0.3 mm, so that the metal plate 3 has enough toughness to be extruded and deformed by the liquid thermoplastic material, and the front side of the metal plate 3 can form a 3D surface effect while ensuring that the surface is not damaged, and the entire front surface of the metal plate 3 is positioned at one side of the mold front part 1, so that the 3D texture surface can be completely formed on the metal plate 3; the rear part 2 of the mold is provided with a plurality of injection channels 2.1, and injection molding materials are injected into the molding part of the mold through the plurality of injection channels 2.1 simultaneously, so that the thermoplastic injection molding materials entering the molding part of the mold have enough pressure to push the metal plate 3 to be in contact with the 3D texture area 1.1 of the front part 1 of the mold, and the injection pressure acting on the metal plate 3 is balanced, in the embodiment, the number of the injection channels 2.1 is four, in addition, in the embodiment, the injection liquid thermoplastic injection molding materials are a mixture of polycarbonate and ABS, and 30% of glass fibers are added, so that the integral strength of the molded part is high; and the pressure of the pressurize of moulding plastics is 2000bar, and the dwell time is 12s, because in this scheme, owing to there is metal sheet 3, consequently sets up the pressure of moulding plastics to 2000bar to guarantee to inject the combination between material and the metal sheet 3 of moulding plastics, set up the dwell time to 12s moreover, thereby further guarantee to mould plastics the combination between material and the metal sheet 3.
d. The rear side of the metal plate 3 is provided with a layer of glue film, the liquid thermoplastic injection molding material in the mold forming part is subjected to cooling forming after injection is completed, at the moment, the injection molding material is subjected to bonding forming with the metal plate 3 through the glue film, and becomes a final formed part after a certain cooling time, so that the connection effect between the metal plate 3 and the injection molding material is ensured, the final formed part and the metal plate 3 are integrated, the outer surface of the final formed part is the metal plate 3, and the metal plate 3 is provided with 3D textures.
e. The mold front 1 and mold back 2 are opened and the molded part is removed.
The manufacturing method of the invention arranges the 3D texture area 1.1 on one side of the front part 1 of the mould, when in manufacturing, the metal plate 3 is placed between the front part 1 and the back part 2 of the mould, then the mould is closed, liquid thermoplastic injection molding material is injected into the mould forming part through the back part 2 of the mould, the liquid thermoplastic injection molding material can be contacted with one side of the metal plate 3, and the other side of the metal plate 3 is pushed to be contacted with the 3D texture area 1.1 of the front part 1 of the mould by injection pressure, thereby the side of the metal plate 3 can form a 3D texture surface, and the thermoplastic injection molding material can be formed simultaneously, so that the formed part and the metal plate 3 can be formed by bonding, the formed part and the metal plate 3 are integrally formed into a whole, the outer surface of the final formed part is the metal plate 3, and the metal plate 3 is provided with 3D textures, so that the final product can be provided with the 3D texture metal surface, the problem that the texture of the metal plate 3 is not well corresponding to the texture of the die after rolling is solved, and the texture quality of the metal plate 3 after forming can be obviously improved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (9)
1. The method for manufacturing the metal surface decorating part with the gradual change 3D texture comprises a mold front part and a mold rear part, and is characterized in that: one side of the front part of the mold has a 3D texture region, the opposite side of the back part of the mold has a core side, and the front part of the mold and the back part of the mold constitute a mold molding part therebetween after being closed,
the manufacturing method comprises the following steps:
a. placing a metal plate between the front part and the rear part of the mold and fixing the metal plate;
b. by closing the front and rear mold parts, so that the metal plate is located in the mold forming part,
c. injecting a liquid thermoplastic injection molding material into the mold forming part through the mold rear part, wherein the liquid thermoplastic injection molding material is bonded with the metal plate, and the metal plate is pressed into the 3D texture region of the mold front part by injection pressure;
d. waiting for the injection molding material in the molding part of the mold to form a molded part after the cooling time,
e. the front and rear mold portions are opened and the decorated molded article is removed.
2. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the front part of the die is provided with a positioning pin, and the metal plate is arranged on the front part of the die through the positioning pin.
3. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the 3D texture area in the front of the die is processed and formed through a laser etching technology.
4. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the entire front surface of the metal plate is positioned at one side of the front portion of the mold.
5. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the thickness of the metal plate is 0.3 mm.
6. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the back surface of the metal plate is provided with a glue film so as to be bonded and molded with an injection molding material.
7. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the injection molding material was a mixture of polycarbonate and ABS with an addition of 30% glass fibers.
8. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: the rear part of the mould is provided with a plurality of injection channels, and injection molding materials are injected into the mould forming part through the injection channels.
9. A method for making a metallic surface finish with a gradient 3D texture as set forth in claim 1, wherein: in step c, the pressure of the injection mold is 2000bar, and the dwell time is 12 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360572.7A CN114290606A (en) | 2021-11-17 | 2021-11-17 | Method for manufacturing metal surface decoration with gradual change 3D texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360572.7A CN114290606A (en) | 2021-11-17 | 2021-11-17 | Method for manufacturing metal surface decoration with gradual change 3D texture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114290606A true CN114290606A (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111360572.7A Pending CN114290606A (en) | 2021-11-17 | 2021-11-17 | Method for manufacturing metal surface decoration with gradual change 3D texture |
Country Status (1)
| Country | Link |
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| CN (1) | CN114290606A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040083786A1 (en) * | 2002-11-06 | 2004-05-06 | Garnett Mark D. | Sheet metal forming die assembly with textured die surfaces |
| WO2005109984A2 (en) * | 2004-05-18 | 2005-11-24 | Bang & Olufsen A/S | A process for the manufacture of a hybrid element comprising a metal skin |
| CN1807087A (en) * | 2006-01-20 | 2006-07-26 | 成都中基国业新材料有限责任公司 | Inner-mould ornamental plastic member capable of being completed by ordinary injection die and its production method |
| CN101722623A (en) * | 2008-10-22 | 2010-06-09 | 上海工程技术大学 | Low-pressure injection molding technology for directly generating grains on skin |
| CN201758505U (en) * | 2010-04-06 | 2011-03-09 | 铂邑科技股份有限公司 | Metallic thin-shell element with plastic binder and the method for producing the same |
| CN109128693A (en) * | 2017-06-16 | 2019-01-04 | 倍腾国际股份有限公司 | The manufacturing method of fastener with full figure pattern |
| CN112172024A (en) * | 2020-09-01 | 2021-01-05 | 长春恒兴集团有限公司 | Rapid in-mold simulation surface decoration process |
| CN113022188A (en) * | 2021-03-18 | 2021-06-25 | 深圳市钧合通德科技有限公司 | Decoration transfer process for surface texture of 3D structure product and transfer mold thereof |
| CN113276326A (en) * | 2021-04-26 | 2021-08-20 | 东风延锋汽车饰件系统有限公司 | Skin forming process and interior skin |
-
2021
- 2021-11-17 CN CN202111360572.7A patent/CN114290606A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040083786A1 (en) * | 2002-11-06 | 2004-05-06 | Garnett Mark D. | Sheet metal forming die assembly with textured die surfaces |
| WO2005109984A2 (en) * | 2004-05-18 | 2005-11-24 | Bang & Olufsen A/S | A process for the manufacture of a hybrid element comprising a metal skin |
| CN1807087A (en) * | 2006-01-20 | 2006-07-26 | 成都中基国业新材料有限责任公司 | Inner-mould ornamental plastic member capable of being completed by ordinary injection die and its production method |
| CN101722623A (en) * | 2008-10-22 | 2010-06-09 | 上海工程技术大学 | Low-pressure injection molding technology for directly generating grains on skin |
| CN201758505U (en) * | 2010-04-06 | 2011-03-09 | 铂邑科技股份有限公司 | Metallic thin-shell element with plastic binder and the method for producing the same |
| CN109128693A (en) * | 2017-06-16 | 2019-01-04 | 倍腾国际股份有限公司 | The manufacturing method of fastener with full figure pattern |
| CN112172024A (en) * | 2020-09-01 | 2021-01-05 | 长春恒兴集团有限公司 | Rapid in-mold simulation surface decoration process |
| CN113022188A (en) * | 2021-03-18 | 2021-06-25 | 深圳市钧合通德科技有限公司 | Decoration transfer process for surface texture of 3D structure product and transfer mold thereof |
| CN113276326A (en) * | 2021-04-26 | 2021-08-20 | 东风延锋汽车饰件系统有限公司 | Skin forming process and interior skin |
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