CN102529098B - Method for manufacturing vehicle sign by in-mold decoration technology - Google Patents
Method for manufacturing vehicle sign by in-mold decoration technology Download PDFInfo
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- CN102529098B CN102529098B CN201110419641.7A CN201110419641A CN102529098B CN 102529098 B CN102529098 B CN 102529098B CN 201110419641 A CN201110419641 A CN 201110419641A CN 102529098 B CN102529098 B CN 102529098B
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Abstract
The invention discloses a method for manufacturing a vehicle sign by an in-mold decoration technology. The method is characterized in that the method comprises the following steps of: thermally-pressing and shaping a compound film to a film with a thickness of 0.45-0.55mm and a certain shape by a vacuum thermally-pressing machine; then putting the film on a three-dimensional cutting machine and cutting the edge of the film so as to remove spare parts and burrs; then forming a plastic panel with a thickness of 2.0-2.5mm by in-mold injection molding; and finally, assembling the plastic panel with a plastic base through a pneumatic pressing machine to obtain a shaped vehicle sign. The method has the advantages of higher surface wear resistance, good resistance to color change, high rate of finished products, energy conservation, environment protection, simple technical processes and easiness in operation.
Description
Technical field
The present invention relates to a kind of preparation method of vehicle label, especially relate to a kind of method of utilizing decoration technique inside mold to make vehicle label.
Background technology
The preparation method of existing vehicle label generally comprises following steps: aluminium sheet is injected after the blank of vehicle label, sprayed protection paint, put into again and water the groove that injection molding and vehicle label shape match, in mould, pour into a mould vehicle label bottom surface material, membrane moulding, utilize the vehicle label of the method making in assembling and transportation, paint destructible, thus cause aluminium material oxidizable; The marginal portion of vehicle label due to paint spraying less than or quantity for spray less, also easily cause aluminium material oxidation, there is texture in working of plastics product itself simultaneously, uneven, easily produce potential corrosion, thereby cause vehicle label, blackout, variable color, surface are not wear-resisting.
In-mold decoration (IMD, In-Mold Decoration) is exactly that the decoration sheet that prints forming is put into injection mould, and the then back side at formed sheet by plastic injection, makes plastics and decoration sheet be bonded into one, then the technology of curing molding.This technique can not only obtain required product shape and size, also can give product outer surface certain physics, chemistry, electric and feel decorative engineering effect.The person of being designed is applied in the different product of every profession and trade more and more, still, also decoration technique inside mold is not applied at present to the correlative study report that vehicle label is made both at home and abroad.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of surface abrasion resistance, not easy to change, yield rate is high, energy-conserving and environment-protective, and technical process simply utilizes decoration technique inside mold to make the method for vehicle label.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of method of utilizing decoration technique inside mold to make vehicle label, comprises the following steps:
(1) diaphragm vacuum forming: by hot-forming by vacuum hotpressing machine to the transparent or coloured poly terephthalic acid class of tool and polymethyl methacrylate (PET/PMMA) composite membrane be the thickness effigurate diaphragm of tool that is 0.45～0.55mm;
(2) trimming is pruned: the diaphragm of step (1) forming is placed on three-dimensional cutting machine and carries out trimming pruning, remove redundance and burr;
(3) in-mould injection: the diaphragm that step (2) is cut is accurately positioned over and carries out in-mould injection in injection machine mould; membrane surface is poured into a mould to high fluidity propylene nitrile-styrene-butadiene copolymer (ABS) material under vacuum protection; injection temperature control is 230～240 ℃; injection pressure control is 70～75 MPa, and injection moulding speed control is 30～40cm
3/ s, during injection moulding, mold temperature control is 75～85 ℃, finally forms the plastic front board that thickness is 2.0～2.5mm;
(4) base injection moulding: will electroplate level acrylonitrile-styrene-butadiene copolymer (ABS) injected plastics material and carry out in-mould injection formation plastic feet;
(5) assembling moulding: plastic front board and plastic feet that step (3) is obtained assemble by pneumatic clamping machine, obtain the vehicle label of moulding.
Injection machine mould mould described in step (3) enters cast gate and designs in product edge, and gate form is cold runner and sub marine gate charging.
Compared with prior art, the invention has the advantages that: the present invention discloses a kind of method of utilizing decoration technique inside mold to make vehicle label first, by diaphragm vacuum forming, trimming pruning, in-mould injection, finally plastic front board and plastic feet assembling are obtained to vehicle label, vehicle label and existing vacuum coating and coating process that the method is made, owing to adopting PET/PMMA composite membrane, make plastic front board there is better wearability, the diaphragm neither too hard, nor too soft (nature is placed the shape that remains unchanged) that the thickness of formation is 0.5mm; Owing to having saved spray paint step, plastic front board and plastic feet are directly assembled to the vehicle label color homogeneous and not easy to change more that the present invention is made, and environmental protection more under vacuum state; Because manufacturing process adopts self-reacting device, make yield rate high, simultaneously technical process is simple to operation, therefore the preparation method of vehicle label of the present invention make that its surface abrasion resistance is higher, not easy to change, yield rate is high, energy-conserving and environment-protective and technical process simple to operation.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Following examples are that the present invention has been done to further illustrate, but protection scope of the present invention is not limited to this, and protection domain is as the criterion with claim.
Embodiment 1
A kind of method of utilizing decoration technique inside mold to make vehicle label of the present invention, comprises the following steps as shown in Figure 1:
(1) diaphragm vacuum forming: by hot-forming by vacuum hotpressing machine to the transparent or coloured poly terephthalic acid class of tool and polymethyl methacrylate (PET/PMMA) composite membrane be the thickness effigurate diaphragm of tool that is 0.5mm;
(2) trimming is pruned: the diaphragm of step (1) forming is placed on three-dimensional cutting machine and carries out trimming pruning, remove redundance and burr;
(3) in-mould injection: the diaphragm that step (2) is cut is accurately positioned over and carries out in-mould injection in injection machine mould; membrane surface is poured into a mould to high fluidity propylene nitrile-styrene-butadiene copolymer (ABS) material under vacuum protection; injection temperature is 230 ℃; injection pressure control is 70MPa, and injection moulding speed control is 30cm
3/ s, during injection moulding, mold temperature control is 75 ℃, finally forms the plastic front board that thickness is 2.0mm;
(4) base injection moulding: will electroplate level acrylonitrile-styrene-butadiene copolymer (ABS) injected plastics material and carry out in-mould injection formation plastic feet;
(5) assembling moulding: assemble by pneumatic clamping machine with plastic feet at the back side (being the opposite face of plastic front board upper diaphragm) of the plastic front board that step (3) is obtained, and obtains the vehicle label of moulding.
Embodiment 2
With embodiment 1, its difference is: in in-mould injection process, injection temperature is 240 ℃, and injection pressure control is 75 MPa, and injection moulding speed control is 40cm
3/ s, during injection moulding, mold temperature control is 80 ℃, finally forms the plastic front board that thickness is 2.5mm.
Embodiment 3
With embodiment 1, its difference is: in in-mould injection process, injection temperature is 235 ℃, and injection pressure control is 72MPa, and injection moulding speed control is 35cm
3/ s, during injection moulding, mold temperature control is 85 ℃, finally forms the plastic front board that thickness is 2.2mm.
Claims (1)
1. utilize decoration technique inside mold to make a method for vehicle label, it is characterized in that comprising the following steps:
(1) diaphragm vacuum forming: by hot-forming by vacuum hotpressing machine to the transparent or coloured poly terephthalic acid class of tool and polymethyl methacrylate composite membrane be the thickness effigurate diaphragm of tool that is 0.45～0.55mm;
(2) trimming is pruned: the diaphragm of step (1) forming is placed on three-dimensional cutting machine and carries out trimming pruning, remove redundance and burr;
(3) in-mould injection: the diaphragm that step (2) is cut is accurately positioned over and carries out in-mould injection in injection machine mould; membrane surface is poured into a mould to high fluidity propylene nitrile-SB material under vacuum protection; injection temperature control is 230～240 ℃; injection pressure control is 70～75MPa, and injection moulding speed control is 30～40cm
3/ s, during injection moulding, mold temperature control is 75～85 ℃, finally forms the plastic front board that thickness is 2.0～2.5mm, and the cast gate that enters of described injection machine mould designs in product edge, and gate form is cold runner and sub marine gate charging;
(4) base injection moulding: plating level acrylonitrile-SB injected plastics material is carried out to in-mould injection and form plastic feet;
(5) assembling moulding: plastic front board and plastic feet that step (3) is obtained assemble by pneumatic clamping machine, obtain the vehicle label of moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419641.7A CN102529098B (en) | 2011-12-15 | 2011-12-15 | Method for manufacturing vehicle sign by in-mold decoration technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419641.7A CN102529098B (en) | 2011-12-15 | 2011-12-15 | Method for manufacturing vehicle sign by in-mold decoration technology |
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| Publication Number | Publication Date |
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| CN102529098A CN102529098A (en) | 2012-07-04 |
| CN102529098B true CN102529098B (en) | 2014-05-07 |
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| CN201110419641.7A Active CN102529098B (en) | 2011-12-15 | 2011-12-15 | Method for manufacturing vehicle sign by in-mold decoration technology |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102814990A (en) * | 2012-08-17 | 2012-12-12 | 宁波中骏上原汽车零部件有限公司 | Manufacture method of automobile scutcheon |
| CN103692979B (en) * | 2013-12-11 | 2017-01-25 | 滁州市宏源喷涂有限公司 | Automotive LOGO with noctilucous built-in three-dimensional effect and preparation method for automotive LOGO |
| CN106608020A (en) * | 2015-10-23 | 2017-05-03 | 广州汽车集团股份有限公司 | Manufacturing process of automotive sign |
| CN106180246B (en) * | 2016-07-25 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of LOGO production methods, LOGO and electronic equipment |
| JP6812933B2 (en) * | 2017-09-19 | 2021-01-13 | トヨタ自動車株式会社 | Manufacturing method of interior members and manufacturing method of polarizing members |
| CN110435174A (en) * | 2019-09-05 | 2019-11-12 | 东莞广华汽车饰件科技有限公司 | A kind of manufacturing process of glue film formula logo |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH064284B2 (en) * | 1988-12-08 | 1994-01-19 | 東海興業株式会社 | Molding and manufacturing method thereof |
| US6544634B1 (en) * | 1999-03-19 | 2003-04-08 | Pinnacle Products Group, Ltd. | Graphic image fusion |
| FR2804364B1 (en) * | 2000-02-02 | 2002-09-13 | Plastic Omnium Cie | PROCESS FOR MANUFACTURING A PLASTIC MATERIAL HAVING A DECORATIVE FILM, AND PART THUS OBTAINED |
| EP1839952B1 (en) * | 2006-03-28 | 2011-10-19 | Autoliv Development AB | Emblem of automobile part and method of manufacturing the same |
| EP2212108A1 (en) * | 2007-11-23 | 2010-08-04 | I.S.D.I. S.A. | In-mould label and method for manufacturing thereof |
| CN101987523A (en) * | 2009-07-31 | 2011-03-23 | 康准电子科技（昆山）有限公司 | Composite material product and forming method thereof |
| CN201618962U (en) * | 2010-03-24 | 2010-11-03 | 宁波四维尔汽车装饰件有限公司 | Automobile label assembling device |
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Address after: Economic Development Zone Cixi Kuangyan 315333 Zhejiang city of Ningbo Province Patentee after: Ningbo four Weier Industry Co., Ltd. Address before: Economic Development Zone Cixi Kuangyan 315333 Zhejiang city of Ningbo Province Patentee before: Ningbo Swell Industry Co., Ltd. |