CN102019666A - In-mould-decoration (IMD) injection molding method - Google Patents
In-mould-decoration (IMD) injection molding method Download PDFInfo
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- CN102019666A CN102019666A CN2010105238376A CN201010523837A CN102019666A CN 102019666 A CN102019666 A CN 102019666A CN 2010105238376 A CN2010105238376 A CN 2010105238376A CN 201010523837 A CN201010523837 A CN 201010523837A CN 102019666 A CN102019666 A CN 102019666A
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Abstract
The invention discloses an in-mould-decoration (IMD) injection molding method, comprising the following steps of starting an injection molding machine, actuating a foil paper machine, beginning injection molding by the injection molding machine, actuating the foil paper machine again, and the like. In the IMD injection molding method, the injection molding machine, the foil paper machine and a knockout machine are linked and cooperated, so that the foil paper and the plastic are combined to be molded, thus eliminating the secondary operation process and the working time of the labors. The IMD injection molding method is particularly used in the conditions requiring backlight, multi-curved surfaces, simulation metal, hair line processing, logic smooth tread, rib inference and the like which can not be processed by printing and spray painting processes, and can be applied to production of interior trim parts of vehicles, panels of liquid crystal display television (LCD TV), lenses and panels of mobile phones, functional panels of printers and the like. In addition, the products produced by using the method can effectively prevent the surfaces from being scratched, have the advantage of rub resistance, and are not easy to fade with bright color.
Description
Technical field
The present invention relates to a kind of plastic working method, particularly relate to a kind of inner mould transfer printing method of plastic products.
Background technology
At present domestic after injection moulding outward appearance gadget all adopts injection moulding, technologies such as adopting traditional surface spraying, print (bat printing, silk-screen, roll printing etc.), be gold stamping is finished.These technologies must adopt a large amount of manually-operateds, and production efficiency is low, can't realize industrial automation; And used the auxiliary article of chemistry such as a large amount of printing ink, film, and these chemical substances can produce the volatility toxic and harmful in process of production and contaminated environment and influence health; Because must a large amount of manually-operateds, thereby cause the quality instability of product, fraction defective is up to 10-30%, and the outward appearance of product does not reach the requirement of high-end product.
Summary of the invention
The object of the present invention is to provide and a kind ofly can prevent effectively that product surface from being scratched and rub resistance, the in-mold transfer printing injection molding method that can keep the distinctness of product colour to be difficult for fading for a long time.
For achieving the above object, technical solution of the present invention is:
The present invention is a kind of in-mold transfer printing injection molding method, its production equipment comprises injection machine, foil paper machine and knockout machine, it may further comprise the steps: (1) starts injection machine: the position of adjusting foil paper machine and mould makes the position of foil paper and the position consistency of mould, adjusts the exercises and the position of knockout machine; (2) the motor-driven work of foil paper:: the injection machine thimble ejects, the foil paper machine obtains signal and begins the foil paper rotation: the foil paper machine is moved to the left infrared ray affirmation place earlier, begin to be swung down to foil paper infrared ray affirmation place consistent with mould, last foil paper machine move right again to infrared ray affirmation place until the accurate signal in position; (3) injection machine begins injection mo(u)lding: injection machine obtains that signal begins that thimble retreats, matched moulds, injection moulding, colloidal sol, take out glue, product cooling, die sinking, and knockout machine obtains signal and enters and get product in the injection machine, and the injection machine thimble ejects simultaneously; (4) the foil paper machine moves again: the foil paper machine obtains signal to begin new one and takes turns the foil paper running.
During step (3) injection moulding, the dynamic model temperature is controlled at 68 ℃-78 ℃.
After adopting such scheme, because the present invention passes through injection machine, the interlock of foil paper machine and knockout machine cooperates, make foil paper and plastic tie synthesis type, exempt secondary operation program and manpower man-hour thereof, be particularly useful at need backlight, many curved surfaces, imitative metal, hair line is handled, logic light line, printings such as rib interference are sprayed paint processing procedure when can't handle, can be applicable to the inside gadget of automobile, the panel of LCD TV, the lens of mobile phone and panel, the production of the function panel of printer etc., its product of producing can prevent effectively that the surface from being scratched and rub resistance also can keep the distinctness of product colour to be difficult for fading for a long time.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 uses the die cut view that the present invention produces product;
Fig. 2 uses the mould die opening state figure that the present invention produces product.
The specific embodiment
The present invention is a kind of in-mold transfer printing injection molding method, and its production equipment comprises injection machine, foil paper machine and knockout machine, and it may further comprise the steps:
(1) start injection machine: the position of adjusting foil paper machine and mould makes the position of foil paper and the position consistency of mould, adjusts the exercises and the position of knockout machine;
(2) the motor-driven work of foil paper: the injection machine thimble ejects, the foil paper machine obtains signal and begins the foil paper rotation: the foil paper machine is moved to the left infrared ray affirmation place earlier, begin to be swung down to foil paper infrared ray affirmation place consistent with mould, last foil paper machine move right again to infrared ray affirmation place until the accurate signal in position;
(3) injection machine begins injection mo(u)lding: injection machine obtains that signal begins that thimble retreats, matched moulds, injection moulding (the dynamic model temperature is controlled at 68 ℃-78 ℃), colloidal sol, take out glue, product cooling, die sinking, knockout machine obtains signal and enters and get product in the injection machine, and the injection machine thimble ejects simultaneously.
(4) the foil paper machine moves again: the foil paper machine obtains signal to begin new one and takes turns the foil paper running.
As shown in Figure 1 and Figure 2, in order to realize above-mentioned processing step, the present invention has adopted following several technology:
One, adopt the mould structure mode that vacuumizes in upside-down mounting mould, Double Tops pin secondary ejecting structure and the dynamic model die cavity:
1, upside-down mounting mode structure: the structure of mould cover half 1 die cavity is placed on the position of the dynamic model 2 die sinking moving direction of injection machine (promptly), and the dynamic model structure of thimble 3 and slide block and oblique top 4 is placed on the cover half position solid plate direction of injection machine (promptly); Make the picture and text on the transfer printing foil paper when moulding, be printed directly on the surface of product.
2, Double Tops pin secondary ejecting structure: on the moving platen of mould and solid plate, Double Tops are set simultaneously and structure, it is that liftout attachment by board backs down foil paper and compresses foil paper that the dynamic model 2 of mould ejects, can be when ejecting so that foil paper can run well when injection mo(u)lding, can make that the surface of product can not produce the distortion of ripple and foil paper when injection mo(u)lding so that foil paper is close on dynamic model 2 die cavities of mould during rollback; The ejecting in the die sinking process of product drive ejector retainner plates with pull bar 5 product ejected, and solved the difficult problem that product can't eject by the board liftout attachment.
3, vacuumize structure in the dynamic model die cavity: vacuum hole is set around dynamic model 2 die cavities, on vacuum hole, disposes vacuum pump again, make foil paper behind the location, not be subjected to injection pressure in the injection moulding process more like this and be shifted.
Two, adopt light sensation precisely to locate the uniformity of foil paper position and mold cavity position: during the in-mold transfer printing moulding, foil paper is in cycle of every moulding, the foil paper machine just turns round once, this project is responded to foil paper by the light beam optical fiber that employing has the penetrating metal material, each opens foil paper all has 5 induction points (one is induction point up and down, 4 is the parallel induction point in the left and right sides in addition), when moulding, whether penetrate the uniformity that the foil paper anchor point is precisely located foil paper position and mold cavity position by light beam, thereby realize the accurate position of picture and text on product.
Three, inner mould transfer printing technology: the dynamic model temperature is controlled at 68 ℃-78 ℃, the picture and text ink molecules is in active state on the foil paper at this moment, and the foil paper base material belongs to exotic material, (foil paper picture and text printing ink and final resin surface molecular merge fully) moulding of combining closely of melt and dissolved resin surface molecule when foil paper is forced into mold cavity when surface picture and text printing ink and moulding, the foil paper base material separates with picture and text printing ink; Cover half make the formed product cycle shorten, and product can not be out of shape by 12 ℃ of-22 ℃ of frozen water coolings.
Claims (2)
1. in-mold transfer printing injection molding method, its production equipment comprises injection machine, foil paper machine and knockout machine, it is characterized in that: it may further comprise the steps: (1) starts injection machine: the position of adjusting foil paper machine and mould makes the position of foil paper and the position consistency of mould, adjusts the exercises and the position of knockout machine; (2) the motor-driven work of foil paper:: the injection machine thimble ejects, the foil paper machine obtains signal and begins the foil paper rotation: the foil paper machine is moved to the left infrared ray affirmation place earlier, begin to be swung down to foil paper infrared ray affirmation place consistent with mould, last foil paper machine move right again to infrared ray affirmation place until the accurate signal in position; (3) injection machine begins injection mo(u)lding: injection machine obtains that signal begins that thimble retreats, matched moulds, injection moulding, colloidal sol, take out glue, product cooling, die sinking, and knockout machine obtains signal and enters and get product in the injection machine, and the injection machine thimble ejects simultaneously; (4) the foil paper machine moves again: the foil paper machine obtains signal to begin new one and takes turns the foil paper running.
2. shift injection molding forming method in the mould according to claim 1, it is characterized in that: during step (3) injection moulding, the dynamic model temperature is controlled at 68 ℃-78 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105238376A CN102019666A (en) | 2010-10-22 | 2010-10-22 | In-mould-decoration (IMD) injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105238376A CN102019666A (en) | 2010-10-22 | 2010-10-22 | In-mould-decoration (IMD) injection molding method |
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| Publication Number | Publication Date |
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| CN102019666A true CN102019666A (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105238376A Pending CN102019666A (en) | 2010-10-22 | 2010-10-22 | In-mould-decoration (IMD) injection molding method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252869A (en) * | 2013-05-30 | 2013-08-21 | 震宇（芜湖）实业有限公司 | Error-proofing insert injection molding device |
| CN104476715A (en) * | 2014-10-17 | 2015-04-01 | 宇科塑料(厦门)有限公司 | A producing method of an in-mold pasted film |
| CN105415572A (en) * | 2015-12-16 | 2016-03-23 | 安徽胜利精密制造科技有限公司 | Carbon fiber board surface finishing method and injection molding device for same |
| CN108146053A (en) * | 2017-12-29 | 2018-06-12 | 物极建筑装饰材料（上海）有限公司 | A kind of processing technology of transparent rainbow plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136215A (en) * | 1988-11-16 | 1990-05-24 | Toppan Printing Co Ltd | Simultaneous molding and transfer apparatus |
| WO2004073952A1 (en) * | 2003-02-18 | 2004-09-02 | Yoshida Kogyo Co., Ltd. | Double-side in-mold transfer molding method |
| CN1544233A (en) * | 2003-11-24 | 2004-11-10 | 李富祥 | Transfer printing film conveyor in mold |
| CN201064936Y (en) * | 2006-10-08 | 2008-05-28 | 上海宜鑫实业有限公司 | Thin film crease-resistant film-pressing mechanism for intramodal transfer printing |
| CN101284413A (en) * | 2007-04-12 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Mould transfer printing method |
-
2010
- 2010-10-22 CN CN2010105238376A patent/CN102019666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136215A (en) * | 1988-11-16 | 1990-05-24 | Toppan Printing Co Ltd | Simultaneous molding and transfer apparatus |
| WO2004073952A1 (en) * | 2003-02-18 | 2004-09-02 | Yoshida Kogyo Co., Ltd. | Double-side in-mold transfer molding method |
| CN1544233A (en) * | 2003-11-24 | 2004-11-10 | 李富祥 | Transfer printing film conveyor in mold |
| CN201064936Y (en) * | 2006-10-08 | 2008-05-28 | 上海宜鑫实业有限公司 | Thin film crease-resistant film-pressing mechanism for intramodal transfer printing |
| CN101284413A (en) * | 2007-04-12 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Mould transfer printing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252869A (en) * | 2013-05-30 | 2013-08-21 | 震宇（芜湖）实业有限公司 | Error-proofing insert injection molding device |
| CN104476715A (en) * | 2014-10-17 | 2015-04-01 | 宇科塑料(厦门)有限公司 | A producing method of an in-mold pasted film |
| CN105415572A (en) * | 2015-12-16 | 2016-03-23 | 安徽胜利精密制造科技有限公司 | Carbon fiber board surface finishing method and injection molding device for same |
| CN105415572B (en) * | 2015-12-16 | 2018-08-24 | 安徽胜利精密制造科技有限公司 | A kind of carbon fiber plate surface treatment method and the injection moulding apparatus for this method |
| CN108146053A (en) * | 2017-12-29 | 2018-06-12 | 物极建筑装饰材料（上海）有限公司 | A kind of processing technology of transparent rainbow plate |
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Application publication date: 20110420 |