CN101564884A - Injection molding method for in-mold decoration - Google Patents
Injection molding method for in-mold decoration Download PDFInfo
- Publication number
- CN101564884A CN101564884A CNA2009100526035A CN200910052603A CN101564884A CN 101564884 A CN101564884 A CN 101564884A CN A2009100526035 A CNA2009100526035 A CN A2009100526035A CN 200910052603 A CN200910052603 A CN 200910052603A CN 101564884 A CN101564884 A CN 101564884A
- Authority
- CN
- China
- Prior art keywords
- film
- mould
- injection
- parting line
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses an injection molding method for in-mold decoration, which comprises the following steps of: a. providing a film vacuum molding mould or a high pressure molding mould to make a film; b. forming a decoration pattern on the film: c. heating the film evenly which is in tension, and making the softened film into a film shell matching with a part shape through the vacuum molding mould or the high pressure molding mould; d. putting the film shell obtained from the step c in a trimming punching machine so as to die cut redundant film boundaries; and e. putting the film shell obtained in the step d in a moulding chamber of an injection mould so as to carry out clamping and injection molding. The method is characterized in that in the step e. the injection mould comprises a male mould and a female mould which form the injection mould when folded; a parting line is arranged in the folding place of the male mould and the female mould, the die cutting to the film in the step d causes the film to cover the parting line when the film is put in the injection mould. The method can improve the boundary appearance of the part greatly and product qualification rate without increasing energy consumption and processing time.
Description
Technical field
The present invention relates to a kind of Inset decoration injection molding method.
Background technology
In-mold decoration injection moulding IN-Moulding Decoration (IMD) is used for mobile phone, notebook computer at present more.Usually IMD part profile is more smooth, simple in structure, and decorative cover generally can only cover more than the parting line.Usually this technology comprises the steps:
A provides a film vacuum forming mould or high-pressure molding Mold Making film;
B forms decorative pattern on film;
C, film be evenly heating under the situation of tensioning, then soften film is made the housing that is complementary with the part profile by vacuum forming mould or high-pressure molding mould;
D finishes film shell with c and places the side cut stamping machine to finish the die-cut of unnecessary thin film boundary.
E provides an injection mold that is applicable to IMD technology, and the film shell that d is finished places injection mold to need the die cavity of decorative cover, and mold-closing injection obtains a decorating film and coats complete working of plastics.
But the problem that existing at present technology exists is, IMD coats film can not be coated to parting line, and reason is that parting line exists negative angle with lower area.So-called somatotype negative angle is the example explanation with the mould that uses, and mould comprises die and punch, and die and punch merging place are parting line, and the inner chamber chamber wall and the parting line of die and punch all have an angle, but its angle direction is opposite.Coat for the film in somatotype negative angle zone, there are two aspect problems in existing technology: 1, and the thin film boundary design that is coated to negative angle can't the demoulding in the film vacuum forming technique; 2 films that are coated to negative angle are easily run into film and are caused damage and skew when the concavo-convex mould matched moulds of injection moulding.For the part auto parts, its shape is rule unlike mobile phone, notebook computer, often requires parting line to expose.Add that thin film boundary that IMD coats is often coarse and die-cut white edge is arranged, to need parting line to expose auto parts parting line zone presentation quality poor thereby make.In this case, IMD technology usually is restricted, thereby has influenced the application of IMD part in automobile industry, perhaps the vehicle configuration structure Design is brought limitation.As film die-cut in the steps d technology must less than or near equaling part parting line zone, can make just that film can place in the decorative cover of injection mold fully in the f technology, otherwise the film of unreasonable side cut will interfere with the matched moulds motion in injection mold, and the location of film in mould will be moved, thereby escape open defects such as material, fold.The residual no decoration pellicular front of the above meeting of the parting line of part influences attractive in appearance like this.The border of decorating film is more coarse, adds that the parting line of part all is the outward appearance visibility region generally, causes the part boundary appearance of poor quality.Bring very big limitation for the configuration design of part and the structural design of part.
Summary of the invention
The objective of the invention is in order to overcome deficiency of the prior art, providing a kind of can be the somatotype negative angle that decorating film is coated to part, improves the outward appearance of parting line exposed parts greatly, and simplifies the structural design of part.
For realizing above purpose, the present invention is achieved through the following technical solutions:
Inset decoration injection molding method may further comprise the steps:
A, provide a film vacuum forming mould or high-pressure molding Mold Making film;
B, on film, form decorative pattern;
C, film be evenly heating under the situation of tensioning, then soften film is made the film shell that is complementary with the part profile by vacuum forming mould or high-pressure molding mould;
D, c is finished film shell place the side cut stamping machine to finish the die-cut of unnecessary thin film boundary;
E, the film shell that d is finished place the die cavity of injection mold, mold-closing injection;
It is characterized in that among the step e, described injection mold comprises punch and die, punch and the die composition injection mold that closes; Die and punch matched moulds place have a parting line, and steps d is die-cut to film, and when making film in being placed into injection mold, film covers parting line.
Preferably, described film makes film edge between parting line and punch wall in placing die cavity the time.
Preferably, described punch wall is parallel with parting line or acutangulate setting.
Preferably, described film extends selected length along parting line to the punch wall.
Preferably, described punch wall is parallel with parting line or acutangulate setting.
Preferably, among the described step e, when film is put into injection mold, in the gap that parting line place and die wall and punch wall have selected size.
Preferably, described step c adopts aluminium matter vacuum forming mould, high temperature heating film, and heating-up temperature is 150-190 ℃, makes the form film housing under the 30-50kg negative pressure.
Preferably, described step e, 210～260 ℃ of injection temperatures, injection pressure 100～150MPa, 40～80 ℃ of mold preheating temperatures.
Beneficial effect of the present invention is: the present invention can improve the boundary appearance of part greatly, improves product percent of pass, does not increase energy consumption and process time.And can solve the common parting line Burr Problem of injection moulding fully.
Description of drawings
Fig. 1 is the inventive method flow chart;
Fig. 2 reaches the film schematic diagram of making on mould for the vacuum forming mould;
Fig. 3 is to the die-cut schematic diagram of film;
Fig. 4 is placed on schematic diagram in the injection mold cavity with film;
Fig. 5 is A part first enlarged diagram among Fig. 4;
Fig. 6 is A part second enlarged diagram among Fig. 4;
Fig. 7 for injection moulding finish after the moulding structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
Inset decoration injection molding method as shown in Figure 1, may further comprise the steps:
A as shown in Figure 2, makes film 2 on vacuum forming mould 1;
B forms decorative pattern (not looking out among the figure) on film 2;
C, as shown in Figure 2, film 2 is evenly heating under the situation of tensioning, then softening film 2 is made the film shell that is complementary with the part profile by vacuum forming mould 1;
D as shown in Figure 3, finishes film shell 2 with c and places the side cut stamping machine, utilizes stamping knife 3 to finish the die-cut of unnecessary thin film boundary, makes film be fit to be positioned in the injection mold cavity.
E, the film shell that d is finished places the die cavity of injection mold, is that film is positioned at the one side that moulding need be decorated, mold-closing injection; As shown in Figure 4, a kind of structural representation that dissects of injection mold is provided, described injection mold comprises punch 6 and die 4, punch 6 and the die 4 composition injection mold that closes, form a cavity 5 in injection mold, cavity 5 is identical with the part shape of required making, and injection molding material is injected in the cavity 5, after injection molding material was full of, the final shape of injection molding material was identical with cavity shape; Die 4 has a parting line with punch 5 matched moulds places, as shown in Figure 6, when the die-cut film of steps d, make film edge 21 after die-cut can surpass parting line and make film edge 21 between parting line and punch wall 61, so that film can cover parting line, punch wall 61 is parallel with parting line.Film edge 21 is crossed and is extended selected length h after the parting line, the length h that this is selected less than parting line to the vertical range between the punch wall 61.And, film is in being placed into injection mold the time, between parting line place and die punch wall, leave gap L, because gapped L, so when injection moulding, film edge 21 is both towards 62 motions of punch internal chamber wall, simultaneously also can be small move towards parting line, therefore, the size of gap L is as the criterion so that film edge 21 after the injection moulding is positioned at more than the parting line.
As shown in Figure 5, the die of parting line both sides becomes different angles respectively with the punch internal chamber wall with parting line, and as being positive angle with the included angle B, then angle C is a negative angle; Accordingly, the part of producing is positive angle at parting line with top, then is negative angle below parting line.Because film has covered parting line, and the length that has h between film edge 21 and the parting line in the time of in being placed into injection mold, also will be selected gap L, interfere so can make thin film boundary promptly can not produce, can guarantee that again the film after the injection moulding can cover the somatotype negative angle with the matched moulds motion.So, the final part of making, film can cover the parting line negative angle with the lower part.Can not form fold or influence the attractive in appearance of part, and can prevent that burr from appearring in the parting line place.
As shown in Figure 7, after injection moulding was finished, moulding 8 was identical with injection mold cavity 5 shapes, and film 2 is positioned at moulding 8 surfaces.
Among the present invention, be that raw material is made film and moulding with the ABS resin, step c adopts aluminium matter vacuum forming mould, high temperature heating film, and heating-up temperature is 150-190 ℃, makes the form film housing under the 30-50kg negative pressure.
210～260 ℃ of step e injection temperatures, injection pressure 100～150MPa, 40～80 ℃ of mold preheating temperatures.
Embodiment among the present invention only is used for that the present invention will be described, does not constitute the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in protection domain of the present invention.
Claims (8)
1. Inset decoration injection molding method may further comprise the steps:
A, provide a film vacuum forming mould or high-pressure molding Mold Making film;
B, on film, form decorative pattern;
C, film be evenly heating under the situation of tensioning, then soften film is made the film shell that is complementary with the part profile by vacuum forming mould or high-pressure molding mould;
D, c is finished film shell place the side cut stamping machine to finish the die-cut of unnecessary thin film boundary;
E, the film shell that d is finished place the die cavity of injection mold, mold-closing injection;
It is characterized in that among the step e, described injection mold comprises punch and die, punch and the die composition injection mold that closes; Die and punch matched moulds place have a parting line, and steps d is die-cut to film, and when making film in being placed into injection mold, film covers parting line.
2. Inset decoration injection molding method according to claim 1 is characterized in that, described film makes film edge between parting line and punch wall in placing die cavity the time.
3. Inset decoration injection molding method according to claim 2 is characterized in that, described punch wall is parallel with parting line or acutangulate setting.
4. Inset decoration injection molding method according to claim 1 is characterized in that, described film extends selected length along parting line to the punch wall.
5. Inset decoration injection molding method according to claim 4 is characterized in that, described punch wall is parallel with parting line or acutangulate setting.
6. Inset decoration injection molding method according to claim 1 is characterized in that, among the described step e, when film is put into injection mold, in the gap that parting line place and die and punch wall have selected size.
7. Inset decoration injection molding method according to claim 1 is characterized in that, described step c adopts aluminium matter vacuum forming mould, high temperature heating film, and heating-up temperature is 150-190 ℃, makes the form film housing under the 30-50kg negative pressure.
8. Inset decoration injection molding method according to claim 1 is characterized in that, described step e, 210～260 ℃ of injection temperatures, injection pressure 100～150MPa, 40～80 ℃ of mold preheating temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100526035A CN101564884B (en) | 2009-06-05 | 2009-06-05 | Injection molding method for in-mold decoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100526035A CN101564884B (en) | 2009-06-05 | 2009-06-05 | Injection molding method for in-mold decoration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101564884A true CN101564884A (en) | 2009-10-28 |
| CN101564884B CN101564884B (en) | 2012-05-02 |
Family
ID=41281343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100526035A Active CN101564884B (en) | 2009-06-05 | 2009-06-05 | Injection molding method for in-mold decoration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101564884B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804684A (en) * | 2010-02-10 | 2010-08-18 | 上海名盛汽车饰件有限公司 | In-mould decorating injection moulding method and mould |
| CN102343642A (en) * | 2010-08-05 | 2012-02-08 | 汉达精密电子(昆山)有限公司 | System and method for manufacturing plastic products |
| CN102371646A (en) * | 2010-08-11 | 2012-03-14 | 联想(北京)有限公司 | Preparation method of workpiece |
| CN102390193A (en) * | 2011-05-27 | 2012-03-28 | 汕头市丽葵玩具有限公司 | Film transfer printing method |
| CN103507204A (en) * | 2012-06-27 | 2014-01-15 | 比亚迪股份有限公司 | Molding method of injection molding element |
| CN105563764A (en) * | 2016-02-23 | 2016-05-11 | 昆山峰实电子科技有限公司 | Die and product without parting line trace and manufacturing method of product |
| CN107053565A (en) * | 2017-04-28 | 2017-08-18 | 宁波横河模具股份有限公司 | A kind of high-end automotive upholstery and its preparation technology |
| CN107073760A (en) * | 2014-05-30 | 2017-08-18 | 专展览公司 | Modified membrane in thermosetting mould |
| CN108189308A (en) * | 2017-12-28 | 2018-06-22 | 上汽通用五菱汽车股份有限公司 | A kind of mould embeds film decoration chemistry foam injection molding technique |
| CN108556246A (en) * | 2018-04-27 | 2018-09-21 | 滁州迪蒙德模具制造有限公司 | A kind of portable molding die |
| CN108821548A (en) * | 2018-05-25 | 2018-11-16 | Oppo广东移动通信有限公司 | The manufacturing method of shell, electronic device and shell |
| CN110091471A (en) * | 2018-01-31 | 2019-08-06 | 北京小米移动软件有限公司 | Injection mold, the shell of mobile device and its processing method |
| CN111923379A (en) * | 2020-09-21 | 2020-11-13 | 宁波均胜群英汽车系统股份有限公司 | INS process |
| CN112848360A (en) * | 2020-12-31 | 2021-05-28 | 东莞市东南兴科技有限公司 | Film coating method and film sheet for 3C product |
| CN113071055A (en) * | 2021-04-21 | 2021-07-06 | 四川省绵阳市鸿永盛模塑有限公司 | Preparation method for manufacturing light-transmitting door panel decorative strip by using INS (inertial navigation System) new process |
| CN114102978A (en) * | 2021-11-29 | 2022-03-01 | 天健精密模具注塑（惠州）有限公司 | Colorful shell and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599608A (en) * | 1995-06-20 | 1997-02-04 | Green Tokai Co., Ltd. | Method of insert molding plastic parts to provide covered edge surfaces and plastic parts made thereby |
| CN101347992A (en) * | 2007-07-17 | 2009-01-21 | 深圳市群达行精密模具有限公司 | In-mold decorative injection molding mould and moulding method |
-
2009
- 2009-06-05 CN CN2009100526035A patent/CN101564884B/en active Active
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804684A (en) * | 2010-02-10 | 2010-08-18 | 上海名盛汽车饰件有限公司 | In-mould decorating injection moulding method and mould |
| CN102343642A (en) * | 2010-08-05 | 2012-02-08 | 汉达精密电子(昆山)有限公司 | System and method for manufacturing plastic products |
| CN102371646A (en) * | 2010-08-11 | 2012-03-14 | 联想(北京)有限公司 | Preparation method of workpiece |
| CN102390193A (en) * | 2011-05-27 | 2012-03-28 | 汕头市丽葵玩具有限公司 | Film transfer printing method |
| CN102390193B (en) * | 2011-05-27 | 2014-11-26 | 汕头市丽葵玩具有限公司 | Film transfer printing method |
| CN103507204A (en) * | 2012-06-27 | 2014-01-15 | 比亚迪股份有限公司 | Molding method of injection molding element |
| CN107073760A (en) * | 2014-05-30 | 2017-08-18 | 专展览公司 | Modified membrane in thermosetting mould |
| CN107073760B (en) * | 2014-05-30 | 2020-09-29 | 专一展览公司 | Thermosetting in-mold finishing film |
| CN105563764A (en) * | 2016-02-23 | 2016-05-11 | 昆山峰实电子科技有限公司 | Die and product without parting line trace and manufacturing method of product |
| CN107053565A (en) * | 2017-04-28 | 2017-08-18 | 宁波横河模具股份有限公司 | A kind of high-end automotive upholstery and its preparation technology |
| CN107053565B (en) * | 2017-04-28 | 2023-09-01 | 宁波横河精密工业股份有限公司 | High-end automobile interior trim part and preparation process thereof |
| CN108189308A (en) * | 2017-12-28 | 2018-06-22 | 上汽通用五菱汽车股份有限公司 | A kind of mould embeds film decoration chemistry foam injection molding technique |
| CN110091471A (en) * | 2018-01-31 | 2019-08-06 | 北京小米移动软件有限公司 | Injection mold, the shell of mobile device and its processing method |
| CN108556246A (en) * | 2018-04-27 | 2018-09-21 | 滁州迪蒙德模具制造有限公司 | A kind of portable molding die |
| CN108821548A (en) * | 2018-05-25 | 2018-11-16 | Oppo广东移动通信有限公司 | The manufacturing method of shell, electronic device and shell |
| CN108821548B (en) * | 2018-05-25 | 2023-12-05 | Oppo广东移动通信有限公司 | Housing, electronic device, and manufacturing method of housing |
| CN111923379A (en) * | 2020-09-21 | 2020-11-13 | 宁波均胜群英汽车系统股份有限公司 | INS process |
| CN112571819A (en) * | 2020-09-21 | 2021-03-30 | 宁波均胜群英汽车系统股份有限公司 | INS process with contour degree detection function |
| CN112571819B (en) * | 2020-09-21 | 2022-06-14 | 宁波均胜群英汽车系统股份有限公司 | INS process with contour degree detection function |
| CN112848360A (en) * | 2020-12-31 | 2021-05-28 | 东莞市东南兴科技有限公司 | Film coating method and film sheet for 3C product |
| CN113071055A (en) * | 2021-04-21 | 2021-07-06 | 四川省绵阳市鸿永盛模塑有限公司 | Preparation method for manufacturing light-transmitting door panel decorative strip by using INS (inertial navigation System) new process |
| CN114102978A (en) * | 2021-11-29 | 2022-03-01 | 天健精密模具注塑（惠州）有限公司 | Colorful shell and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101564884B (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101564884B (en) | Injection molding method for in-mold decoration | |
| CN102642437B (en) | Carving and molding process of leather | |
| CN101804684A (en) | In-mould decorating injection moulding method and mould | |
| US7682549B2 (en) | Method and apparatus for producing decorative elements | |
| CN101077672B (en) | Film membrane for in-mode decoration and manufacturing method thereof and in-mode decoration manufacture process | |
| CN109605786A (en) | A kind of how embedding film production process of INS film coated decorative | |
| JP6097418B1 (en) | Injection molding machine and surface decoration mold used therefor | |
| CN107458009A (en) | A kind of composite and its moulding process that spectacle frame is made using acetate fiber | |
| CN101954703A (en) | Injection molding method for in-mold ornament | |
| CN103454780A (en) | Injection molding preformed IML glasses frame plate and method for manufacturing acetate glasses | |
| CN102529098A (en) | Method for manufacturing vehicle sign by in-mold decoration technology | |
| CN107825725A (en) | The more embedding seam production technology of mould zero | |
| CN109334033A (en) | A kind of dummy slider Shooting Technique based on automobile interior decoration | |
| CN104339600A (en) | Double-surface die inner injection moulding product and production method thereof | |
| CN109177215A (en) | A kind of plated sheets injection molding process and products thereof | |
| CN101600553A (en) | A kind of plastic sheet and manufacture method thereof of injection mo(u)lding tool 3D lines | |
| CN104400966A (en) | Dazzle-proof injection part mould and manufacturing method thereof | |
| CN102862261B (en) | In-molded injecting products embossment production technology | |
| CN105437460A (en) | Processing forming method of composite material profile | |
| CN103978627B (en) | Injection molding method of outer part | |
| CN204263463U (en) | There is the automobile front door injection mold of heat radiation pin | |
| CN205651606U (en) | Flash mechanism of PU mould | |
| CN106217779A (en) | Plastic spectacles frame mould and release method | |
| CN205439116U (en) | No die parting line vestige mould and product | |
| CN204322429U (en) | Anti-glazing light moulding mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CUI HAIHUI Free format text: FORMER OWNER: SHANGHAI MINGSHENG AUTOMOBILE ORNAMENTS CO., LTD. Effective date: 20131011 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201616 SONGJIANG, SHANGHAI TO: 201206 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131011 Address after: 201206, 216 Jinqiao Road, Shanghai, Pudong New Area Patentee after: Cui Haihui Address before: 201616 Shanghai city Songjiang District small town of Kunshan Qinan street, No. 18 A District 1. Patentee before: Shanghai Mingsheng Automobile Accessories Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210716 Address after: 201805 room jt4190, 1f, 185 Moyu Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai Hongyu Automobile Technology Co.,Ltd. Address before: 201206 No. 216, Xinjinqiao Road, Pudong New Area, Shanghai Patentee before: Cui Haihui |
|
| TR01 | Transfer of patent right |