CN101879770B - Injection molding technology of composite panel - Google Patents
Injection molding technology of composite panel Download PDFInfo
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- CN101879770B CN101879770B CN2009101547556A CN200910154755A CN101879770B CN 101879770 B CN101879770 B CN 101879770B CN 2009101547556 A CN2009101547556 A CN 2009101547556A CN 200910154755 A CN200910154755 A CN 200910154755A CN 101879770 B CN101879770 B CN 101879770B
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- injection molding
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Abstract
The invention relates to an injection molding technology of a composite panel, which comprises the following steps: selecting a film; printing patterns on the film; printing adhesion ink on the film; punching and heating to mold the film; punching the film until the size and the shape of the film are identical to those of the panel when the film is punched to be molded; arranging the film into an injection mould and positioning; and injecting to make resin base materials adhered with the film so as to process the composite panel. The lower die of a heating molding mould used for arranging the film is a silica gel mould. The silica gel mould can smooth the drawing process, and effectively protects the ink, and the molded film has small rebound and better shaping effect and is easier to operate.
Description
Technical field
The present invention relates to the processing technology of composite panel in a kind of processing technology of composite panel, particularly mould.
Background technology
Traditional veneer decoration is that the film that prints is attached to the surface of decorated product with two-sided tape, owing to use the double faced adhesive tape adhesion, can produce the harm of organic solvent, and be prone to delamination, phenomenon such as warp, overall appearance is unsatisfactory.
Common plastics spare surface printing is because the general chromatic number of process technology limit is less, and is dull stiff.
Summary of the invention
The technical problem that the present invention will solve is to overcome the deficiency of prior art, and a kind of processing technology of bonding firm, easy to process, specious composite panel is provided.
For solving the problems of the technologies described above, the design of the technical scheme that the present invention adopts is:
A kind of injection molding process of composite panel, this technology may further comprise the steps: 1. select film; 2. printed patterns on film; 3. printing adhesion ink on film; 4. film is carried out die-cut, heating shaping; During to the film punching and shaping, it is consistent with panel size, size, shape that film is die-cut to; 5. film is inserted in the injection mold, and position; 6. injection moulding makes resin base material and film bonding, accomplishes the processing of composite panel; At the 4. described heating shaping dies of step, patrix is a metal pattern, and the counterdie of placing film is the silica gel mould; The 6. described Shooting Technique of step, for ox horn is dived under water into the glue mode, or thimble is dived under water into the glue mode.
The injection molding process of above-mentioned a kind of composite panel is characterized in that, step 4. in during to the film punching and shaping, for the panel of surface curvature, when heating is shaped with the also shape of moulding and curved panel basically identical of film.
The injection molding process of above-mentioned a kind of composite panel is characterized in that the chromatography serigraphy of adopting during step 2..
The injection molding process of above-mentioned a kind of composite panel is characterized in that the adhesion ink that step is 3. used, and its composition comprises following several kinds at least: synthetic resin, acetate 3-methoxyl group-3-methyl butyl ester, arene, 1,3,5 trimethylbenzenes, isophorone.
The injection molding process of above-mentioned a kind of composite panel is characterized in that the 5. localization method of described film of step, is machinery and vacuum suction location, or mechanical positioning, neutron is loosed core and the locate mode of vacuum suction.
The injection molding process of above-mentioned a kind of composite panel is characterized in that the 5. described mould of step, and its die joint adopts dark chamber die joint.
The injection molding process of above-mentioned a kind of composite panel is characterized in that the 5. described injection mold of step, and the washing shrinkage of its design is 0.3%～0.4%.
The injection molding process of above-mentioned a kind of composite panel is characterized in that the employed printing ink of chromatography serigraphy is the high temperature resistant printing ink that can not change at 300 ℃ of following ink properties of instantaneous temperature.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect:
In the mould moulding of composite panel and traditional handicraft mutually specific energy simplify production stage with building block is disassembled in minimizing, therefore can produce fast and save time and cost, also have simultaneously and improve the quality, increase the complexity of pattern and the advantage of raising durability of product.
Conventional injection moulding mode is directly to get into die cavity by sprue.Its runner flow process is short, and the pressure loss is few, helps exhaust, but cast gate is removed inconvenience, is prone to cause film at the die cavity internal shift, and can on film, stays sharp trace.The conventional mode of directly advancing glue at die joint will be washed film open; Finished product has the gas line around cast gate, the film quilt is towards wrinkling, and the pattern of silk-screen also can be by shock wave; Adopt diving to advance the mode of glue; But automatic break gate. adapt to automated production, guarantee that also film can not washed open simultaneously, pattern also is protected.
The ox horn mould of diving under water into behind the glue need be done two mold inserts, and each beats the half of glue position of ox horn, and there is certain protective role the accurate location of film in die cavity, but automatic break gate during the demoulding, and gate vestiges is not obvious on the product.
The thimble into glue of diving under water; Its cast gate is skewed hides die joint one side, and resin flows into counter again the flowing in the die cavity in push rod position earlier, reduces the direct impact to film; Gate vestiges is not obvious on the film, in the product side or the inside can cut off pin gate automatically when advancing the glue demoulding.
The common die die joint is directly postponed from limit, glue position and is pulled out, and film can't be done the location in die cavity.Dark chamber somatotype is die joint to be pulled out (will do the above draft angle of 3 degree) downwards to postpone again.Like this, die joint covers film just as as the cover, plays the role of positioning.
The vacuum location is meant does runner in front mould, the vacuum suction hole is done on the front mould surface, utilizes the vacuum principle to help film accurately to locate.
Conventional mould is an all-metal material, and Mold Making needs upper and lower mould is all carried out machining, weighs film printing printing ink during operation easily wounded, and the moulding stroke is short, and the film shape after the moulding is prone to bounce-back, distortion.The counterdie die cavity uses silica gel to fill, and the Mold Making process only needs machining is carried out in the patrix moulding, shortens the Mold Making cycle; Save the Mold Making material, use silica gel mould drawing process gently, effectively protect printing ink; Utilize silica gel to fill the space and become out three-dimensional shape; And the form film bounce-back is little, is prone to be consistent with the die cavity moulding, and the typing effect is better, operation is easier.
Below in conjunction with accompanying drawing, specific embodiments of the invention is done further detailed description.
Description of drawings
Fig. 1, Fig. 2 are respectively conventional cast gate and fan gate structural representation;
Fig. 3 is a vacuum location structure sketch map of the present invention;
Fig. 4, Fig. 5 are the structural representation of conventional and fan-shaped thimble;
Fig. 6 is an existing conventional die joint sketch map;
Fig. 7 is a dark chamber of the present invention die joint sketch map;
Fig. 8, Fig. 9 ox horn diving of the present invention structural representation;
Figure 10 and Figure 11 are the routine and the fan gate structural representations of ox horn diving.
The specific embodiment
Embodiment 1:
Of accompanying drawing, the present invention adopts the injection molding process of composite panel, and this technology may further comprise the steps:
1. select film;
2. printed patterns on film; Adopt the chromatography serigraphy; Used silk screen can adopt the silk screen in silk footpath about 34 μ, makes pattern more attractive in appearance, and the printing ink of its use has temperature tolerance, and ink property can not change under 200 ℃-300 ℃ high temperature.；
3. printing adhesion ink on film; Used adhesion ink, its composition comprise following several kinds at least: synthetic resin, acetate 3-methoxyl group-3-methyl butyl ester, arene, 1,3,5 trimethylbenzenes, isophorone;
4. film is carried out punching and shaping; Directly film is die-cut to and panel size of the same size; For the panel of surface curvature, when heating is shaped with the film curved shape with the curved panel basically identical that also is shaped; Described heating shaping dies, patrix are metal pattern, and the counterdie of placing film is a pellosil, and its die cavity is a silica gel material;
5. film is inserted in the die cavity 2 in the mould 1,5, and position; The localization method of film is machinery and vacuum suction location, or mechanical positioning, neutron is loosed core and the locate mode of vacuum suction; The vacuum suction passage is 6, external air pump;
6. injection moulding makes resin base material and film bonding, accomplishes the processing of composite panel; Thimble is dived under water into the glue mode; The die joint of mould adopts dark chamber die joint 3.And the visible Fig. 6 of conventional die joint, die joint is 31.
Thimble is dived under water into glue, has conventional thimble to dive under water into the glue mode, like accompanying drawing 4; Also there is fan-shaped thimble 7 to slip into, like accompanying drawing 5 into the glue mode.Cast gate 4 is respectively the cast gate that routine and fan-shaped thimble slip into glue like Fig. 1 and Fig. 2.
Implement 2:
What present embodiment and embodiment 1 were different is; Adopt ox horn to dive under water into the glue mode, the passage of going into to water of plastics is a cattle horn shape 401, and thimble is 77; During depanning; Thimble 77 ejects the cooled plastics stub bar 402 that is the ox horn shape forward, because ox horn becomes lever-like in mould, easy and composite panel 22 comes off.Like this, improved working (machining) efficiency.
Because injection temperature up to 200 ℃-300 ℃, is therefore had relatively high expectations to the printing ink heat resistance, conventional printing ink is prone to produce phenomenons such as red ink, variable color, delamination behind the injection moulding high temperature impact.We select for use different printing ink to allocate combination; Reduced cyclohexanone and ethylene glycol composition wherein, substituted, and added high temperature resistant auxiliary agent at printing ink with the ester series solvent; Thereby ink lay is solidified satisfy injection moulding high temperature impact power; The temperature tolerance of the printing ink that improves has greatly reduced the organic solvent addition, makes properties of product stable more and have more the feature of environmental protection.
Design of composite panel mould and manufacturing and conventional injection mould have very big difference in the mould; The one, mould washing shrinkage problem: general injection mold should be made according to the shrink 0.5% of material, and composite panel in the mould is because product surface combines with printing film, and plastics are by film wrapped during injection moulding; The effect that hinders has been played in the contraction of plastics; Because of a little, it is littler than common die to shrink when making mould, gets 0.3%～0.4% proper.
At three-dimensionally shaped machine, the injection machine of the moulding panel of injection mold promptly is installed, upper and lower mould install heating plate additional, keep stationary temperature during operation.Portable heating plate moves on to the film top film is carried out preheating after putting into film, makes its deliquescing, and matched moulds carries out the thermal finalization processing then.
In order to guarantee product stability, we set injection parameters according to different product, and injection temperature and conventional injecting products be high 20 ℃～and about 30 ℃, speed should reach 20%～50%, and pressure reaches 100%.
Claims (8)
1. the injection molding process of a composite panel, this technology may further comprise the steps: 1. select film; 2. printed patterns on film; 3. printing adhesion ink on film; 4. film is carried out die-cut, heating shaping; During to the film punching and shaping, film is die-cut to consistent with panel size, shape; 5. film is inserted in the injection mold, and position; 6. injection moulding makes resin base material and film bonding, accomplishes the processing of composite panel;
It is characterized in that:
At the 4. described heating shaping dies of step, patrix is a metal pattern, and the counterdie of placing film is the silica gel mould;
The 6. described Shooting Technique of step, for ox horn is dived under water into the glue mode, or thimble is dived under water into the glue mode.
2. the injection molding process of a kind of composite panel as claimed in claim 1 is characterized in that, step 4. in during to the film punching and shaping, for the panel of surface curvature, when heating is shaped film also is molded into the curved shape with the curved panel basically identical.
3. the injection molding process of a kind of composite panel as claimed in claim 1, what it is characterized in that adopting during step 2. is the chromatography serigraphy.
4. the injection molding process of a kind of composite panel as claimed in claim 1; It is characterized in that the adhesion ink that step is 3. used; Its composition comprises following several kinds at least: synthetic resin, acetate 3-methoxyl group-3-methyl butyl ester, arene, 1,3,5 trimethylbenzenes, isophorone.
5. the injection molding process of a kind of composite panel as claimed in claim 1 is characterized in that the 5. localization method of described film of step, is machinery and vacuum suction location, or mechanical positioning, neutron is loosed core and the locate mode of vacuum suction.
6. the injection molding process of a kind of composite panel as claimed in claim 1 is characterized in that the 5. described mould of step, and its die joint adopts dark chamber die joint.
7. the injection molding process of a kind of composite panel as claimed in claim 1 is characterized in that the 5. described injection mold of step, and the washing shrinkage of its design is 0.3%～0.4%.
8. the injection molding process of a kind of composite panel as claimed in claim 3 is characterized in that the employed printing ink of chromatography serigraphy is the high temperature resistant printing ink that can not change at 300 ℃ of following ink properties of instantaneous temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547556A CN101879770B (en) | 2009-12-03 | 2009-12-03 | Injection molding technology of composite panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547556A CN101879770B (en) | 2009-12-03 | 2009-12-03 | Injection molding technology of composite panel |
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| CN101879770A CN101879770A (en) | 2010-11-10 |
| CN101879770B true CN101879770B (en) | 2012-07-25 |
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| CN2009101547556A Expired - Fee Related CN101879770B (en) | 2009-12-03 | 2009-12-03 | Injection molding technology of composite panel |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529015A (en) * | 2012-01-16 | 2012-07-04 | 焦志红 | Method for bonding plastic product to leather product |
| CN103296420A (en) * | 2012-03-02 | 2013-09-11 | 深圳光启创新技术有限公司 | Manufacturing method for metamaterial antenna housing |
| CN102615783A (en) * | 2012-04-09 | 2012-08-01 | 昆山金利表面材料应用科技股份有限公司 | Injection mold with auxiliary boss |
| CN103057035A (en) * | 2013-01-14 | 2013-04-24 | 昆山易昌泰塑胶有限公司 | Machining process for simultaneously forming flexible thermoplastic plastic on bottom piece in injection molding manner and thinning flexible plastic in compression manner |
| CN106113829A (en) * | 2016-06-30 | 2016-11-16 | 无锡市科虹标牌有限公司 | A kind of household electrical appliances big panel and processing technology thereof |
| CN108340539B (en) * | 2018-01-10 | 2020-08-07 | 吉利汽车研究院（宁波）有限公司 | Man-machine interaction device and mask manufacturing method |
| CN109849278A (en) * | 2019-04-01 | 2019-06-07 | 孙炎权 | Improve the method for intelligent power semiconductor module product warpage using mold |
| CN111805838A (en) * | 2019-04-12 | 2020-10-23 | 科思创德国股份有限公司 | Method for manufacturing integrated automobile central control display screen panel |
| CN112123823B (en) * | 2020-08-31 | 2022-05-31 | 凯勒(南京)新材料科技有限公司 | Intelligent light-transmitting exterior veneer for automobile and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787901A (en) * | 2003-05-13 | 2006-06-14 | 拜尔材料科学有限责任公司 | Method of preparing an insert-molded article |
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- 2009-12-03 CN CN2009101547556A patent/CN101879770B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787901A (en) * | 2003-05-13 | 2006-06-14 | 拜尔材料科学有限责任公司 | Method of preparing an insert-molded article |
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| CN101879770A (en) | 2010-11-10 |
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Owner name: ZHEJIANG DAAN MOULD TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG DAAN DECORATING PARTS CO., LTD. Effective date: 20130922 |
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Effective date of registration: 20130922 Address after: 310018, No. 17, No. fourteen, No. 1, Hangzhou Economic Development Zone, Zhejiang, China Patentee after: ZHEJIANG DAAN MOLDING TECHNOLOGY Co.,Ltd. Address before: 310018 No. 28, No. two, Hangzhou economic and Technological Development Zone, Zhejiang Patentee before: ZHEJIANG DAAN DECORATIVE PARTS Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20211203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |