CN101670651B - Mould for forming in-mould decoration transfer printing device - Google Patents
Mould for forming in-mould decoration transfer printing device Download PDFInfo
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- CN101670651B CN101670651B CN200810215670XA CN200810215670A CN101670651B CN 101670651 B CN101670651 B CN 101670651B CN 200810215670X A CN200810215670X A CN 200810215670XA CN 200810215670 A CN200810215670 A CN 200810215670A CN 101670651 B CN101670651 B CN 101670651B
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Abstract
The invention relates to a mould for forming an in-mould decoration transfer printing device, which comprises a fixed module and a moving module, wherein the fixed module is provided with a forming groove and a plurality of first pouring channels communicated with a main feed end; the moving module is provided with a plurality of demoulding pipelines and second pouring channels which are respectively communicated with one demoulding pipeline in the moving module. When the moving module clamps and fixes a module, plastics at the main feed end are respectively poured into the forming groove through the first pouring channels, the second pouring channels and the demoulding pipelines to disperse the pressure of the plastics.
Description
Technical field
The invention relates to a kind of mould, particularly relevant for a kind of mould that is applied on the in-mold decoration transfer apparatus.
Background technology
In recent years in-mold decoration (In-Mold Decoration, IMD) technical development becomes one of main flow of product appearance design for many years gradually; Along with the variation of product shape is day by day complicated; Begin to use so far, also develop in succession and many forms, for example: in-molded (In-Mold Forming; IMF) technology, in-mold transfer printing (In-Mold Roller, IMR) technology etc.
Wherein the in-mold transfer printing technology is before plastics inject mould, and the film of tool printing-ink places mould in advance, and the wait printing-ink combines with plastics, to improve sense of vision and the diversity that product shell is decorated.Yet the in-mold transfer printing technology is in application process, and plastics inject imposing a condition like temperature, pressure and speed etc. in the mould, all need pass through meticulous adjustment and setting, otherwise finished surface are easy to generate the undesirable element of red ink or fold, cause the finished product failure.
Wherein the main cause of the undesirable element of finished surface generation red ink is relevant with feed points pressure.Because mould has a monolateral feed points usually, the width of this feed points for example is 30 millimeters (mm), and thickness is 1.5 millimeters (mm), so the charging sectional area of injected plastic is 45 square millimeters of (mm
2), and the pressure of glue-feeder can be increased to 1800 kilograms of/square centimeter (kg/cm
2), therefore, when advancing a large amount of plastics to the mould that glue point moment injects HTHP, with making printing-ink on the film by impact and therefore fuzzy, and cause the red ink phenomenon, become defective products, cause material, manual work and waste of time on producing.Moreover one monolateral when advancing glue point if mould only has, can cause the enterprising glue point of finished product position that remaining plastics are arranged, and influence the outward appearance of finished product, needs are other to be spent man-hour and modifies processing.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of mould of in-mold decoration transfer apparatus, overcomes the defective of existing mould.
To achieve these goals; The present invention provides a kind of mould of in-mold decoration transfer apparatus; Be used for the film that clamping one has the transfer printing pattern, comprise the stuck-module and the mobile module of driving fit each other, stuck-module has a shaping groove and a plurality of first running channel; Common connection one master of first end of each first running channel advances the glue end, and its corresponding second termination is led in the position of contiguous stuck-module tool shaping groove.
Be penetrated with a plurality of demoulding pipelines and second running channel in the mobile module, corresponding respectively wherein second end of one first running channel of first end of each second running channel.Second end of each second running channel is respectively at connecting a wherein demoulding pipelines in the mobile module.
When mobile fixture block near fixing fixture block, and when being snapped to fixedly fixture block, respectively second running channel is connected first running channel respectively, leading plastics that the glue end seen off just can be divaricately through each first and second running channel and demoulding pipelines, and reaches in the shaping groove.So, main advance glue end each demoulding pipelines capable of using respectively divaricately injected plastic to shaping groove, to disperse the pressure of plastics.
In sum, through the improvement of mould of the present invention, make plastics when the injection moulding mould; Can disperse the crunch of plastics when injecting, reduce the probability that causes the red ink phenomenon, simultaneously; Most tiny demoulding pipelines make the plastics that pass through form tiny projection in the cooling back, have to be easy to fracture, and the unconspicuous characteristic of vestige; So the user does not just need to spend unnecessary man-hour again, prune or modify and handle the projection protrude in the casing finished product.
Description of drawings
For letting said and other purpose of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the detailed description of appended accompanying drawing be following:
Shown in Figure 1 is the embodiment sketch map of in-mold decoration transfer apparatus;
Be respectively the front schematic view of mobile module and the stuck-module of Fig. 1 shown in Fig. 2 A, the 2B;
Shown in Figure 3 is the side view of the mould of Fig. 1;
Sketch map when being mould closure and the injected plastic of Fig. 3 shown in Figure 4;
Mould for Fig. 3 shown in Figure 5 cooperates gripping apparatus to take the operation chart of casing finished product away;
The operation chart that the demoulding unit of the mould for Fig. 3 shown in Figure 6 stretches out mobile module.
The specific embodiment
Below will clearly demonstrate spirit of the present invention, as be familiar with these technological personnel after understanding embodiments of the invention with accompanying drawing and detailed description, when can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
Fig. 1 is in-mold decoration transfer apparatus (in-mold roller; IMR) embodiment sketch map; But it can be applicable to the film 33 of a tool transfer printing pattern 331, can produce the housing that is printed on this pattern 331 through ejection formation, and this housing can be the shell of an electronic installation.
The in-mold decoration transfer apparatus comprises a board 1, a molding tool 2, a moving film transport 3 and a sizing material injection unit 4.Mould 2, moving film transport 3 and sizing material injection unit 4 all are located on the board 1; Moving film transport 3 then comprises first roller 31 of representing the membrane end and represents second roller 32 of receiving the film end; Can carry the film 33 in bundled on first roller 31, film 33 is provided with many picture groups appearance 331.
General sizing material injection unit 4 is prone to produce high pressure near narrow inlet when injecting high temperature plastics to mould, and the plastics of HTHP will impact film 33 top patterns 331, and cause the red ink phenomenon of pattern 331 displacements easily.
Please consult Fig. 2 A, 2B and Fig. 3 simultaneously.Be respectively the front schematic view of the mobile module and the stuck-module of mould among Fig. 1 shown in Fig. 2 A, the 2B.Shown in Figure 3 is the side view of mould among Fig. 1.Mould 2 of the present invention comprises a stuck-module 21 and a mobile module 22, and stuck-module 21 comprises a shaping groove 210 and a plurality of first running channel 211.Shaping groove 210 is located at the side of stuck-module 21 in the face of mobile module 22.First running channel 211 runs through stuck-module 21 respectively; Advance glue end 214 with the master of sizing material injection unit 4 and join, make the winner enter sizing material that glue end 214 seen off can be flowed to each first running channel 211 respectively by first opening 212 of each first running channel 211 second opening, 213 places.And second opening, the 213 contiguous shaping grooves 210 of first running channel 211.
And be penetrated with a plurality of demoulding pipelines 220 and a plurality of second running channel 223 in the mobile module 22; One opening 221 of each demoulding pipelines 220 is positioned at a side surface of mobile module 22; Shaping groove 210 in the face of stuck-module 21; One movable flexible demoulding unit 222 (as: ejection thimble) is housed respectively in each demoulding pipelines 220, can supplies a drive unit 5 (as shown in Figure 1) to promote demoulding unit 222, it is stretched out or the surface of the mobile module 22 of withdrawing.Drive unit 5 for example is to reach the effect of start through pneumatic or oil pressure pattern.
And each second running channel 223 has first opening 224 and second opening 225; First opening 224 of each second running channel 223 is opened in a side surface of mobile module 22; And second opening 213 of corresponding first running channel 211; And second opening 225 of second running channel 223 is opened in respectively in the mobile module 22, and connects demoulding pipelines 220.
So, please consult Fig. 3 simultaneously, shown in 4, the sketch map during for mould closure of the present invention and injected plastic shown in Figure 4.During when mobile module 22 driven devices, 5 promotions and near stuck-module 21, mobile module 22 and stuck-module 21 with clamping film 33, make second running channel 223 connect first running channel 211 mutual driving fit.
When main feed end 214 beginning injected plastics, plastics just can flow in the shaping groove 210 via first running channel 211, second running channel 223 and demoulding pipelines 220 divaricately.Because the demoulding pipelines quantity in this example greater than former running channel in order to injected plastic, therefore can be disperseed plastics, alleviate plastics in injecting the crunch that is had, reduce the probability that causes the red ink phenomenon.
Shown in Figure 5ly, mould of the present invention takes the operation chart of casing finished product, operation chart of stretching out mobile module for the demoulding unit of mould of the present invention shown in Figure 6 away for cooperating a gripping apparatus.Please consult Fig. 1,5 and 6 simultaneously; Treat that the plastics in the above-mentioned shaping groove 210 form a casing finished product 7, and on the casing finished product 7 also transfer printing have after its pattern 331, drive unit 5 drives mobile modules 22 away from stuck-module 21; Expose this casing finished product 7, move for a gripping apparatus 6.
Wherein demoulding unit 222 stretches out before the mobile module 22; Be arranged in the position of demoulding pipelines 220 away from the opening 221 of second running channel, 223 second openings 225 and demoulding pipelines 220; Therefore; After the plastic cool of filling with in each demoulding pipelines 220, this in-mold decoration transfer apparatus just carries out the demoulding according to the following step to be handled:
(i) each demoulding unit 222 is released this casing finished product 7 and is blocked the plastics that stretch out second running channel 223:
At first, start drive unit 5 and promote demoulding unit 222, its opening 221 towards demoulding pipelines 220 is advanced; So that release this casing finished product 7, simultaneously, because the bore of the approximate demoulding pipelines 220 of the sectional area of demoulding unit 222; Therefore; Demoulding unit 222 can be in through second opening 225 of second running channel 223 time, blocks and stretches out the outer plastics of second running channel 223, makes that remaining plastics (like above-mentioned projection) only are connected on the casing finished product 7 in the demoulding pipelines 220;
(ii) move casing finished product 7:
Then, start above-mentioned gripping apparatus 6, make gripping apparatus 6 move and take away this casing finished product 7, at this moment, gripping apparatus 6 fractures and stays the plastics (like above-mentioned projection) that are connected to casing finished product 7 in the demoulding pipelines 220; And
(iii) remove plastics remaining in the demoulding pipelines 220:
When this casing finished product 7 taken away and film 33 on another picture group appearance 331 ' when being moved between stuck-module 21 and the mobile module 22; This in-mold decoration transfer apparatus starts drive unit 5 once more and promotes the surface (being the opening 221 of its demoulding pipelines 220) that each demoulding unit 222 stretches out mobile module 22, to withdraw from plastics remaining in the demoulding pipelines 220.
In the embodiments of the invention, because most demoulding pipelines 220 its bores are quite tiny, with this example; The demoulding pipelines diameter is merely 2.0-5.0 millimeter (mm); Therefore chilled plastics are blocked quite easily in each demoulding pipelines 220, and casing finished product 7 surfaces also do not have and significantly block vestige, so; The user does not just need to spend unnecessary man-hour again, prunes or modifies and handle the projection protrude in casing finished product 7.
Wherein it should be noted that; In order when avoiding the red ink phenomenon, to reach the charging purpose again fast; The sectional area of each demoulding pipelines 220 is less than the sectional area of known monolateral feed points; Yet the sectional area of 220 totallings of each demoulding pipelines must be more than or equal to the sectional area of known monolateral feed points, the pressure that just can disperse plastics to be exported by main feed end 214, and reduce the plastics temperature.
45 square millimeters of (mm of sectional area with charging
2) be example, when the radius of each demoulding pipeline was 1.0 millimeters (mm), identical sectional area just needed 15 demoulding pipeline (45mm
2/ (1.0mm*1.0mm*3.1415=14.33 is equivalent to 15 demoulding pipelines of needs).The improvement of mould of the present invention will make the average pressure of demoulding pipeline 220 plastics of exporting can be lower than 950 kilograms of/square centimeter (kg/cm
2) below, cause the phenomenon of red ink with elimination.
Utilize above-mentioned idea, the present invention can arrange in pairs or groups demoulding pipeline 220 (as: 2.0-5.0 millimeter mm) and the mould that changes of demoulding pipeline 220 (as: 14～20) with varying number and different bores are on the casing that is applied to different volumes or external form.The connection of first running channel 211 and second running channel 223 simultaneously has more than the kenel that is limited among the figure.
The present invention discloses among each embodiment as above; Be not in order to limit the present invention; Anyly be familiar with this technological personnel, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching; Just can be contained in the scope of the present invention, so protection scope of the present invention is as the criterion when looking the scope that claims define.
Claims (6)
1. the mould of an in-mold decoration transfer apparatus is characterized in that, comprising:
Stuck-module has shaping groove and a plurality of first running channel, and said these first running channels are connected the master and advanced the glue end; And
Mobile module has a plurality of demoulding pipelines and a plurality of second running channel, and said these second running channels are connected said these demoulding pipelines in said mobile module;
Wherein, when the said stuck-module of said mobile module clamping, the contiguous said shaping groove of an end opening of said these first running channels; An and end opening of respectively corresponding said these second running channels; Said these second running channels are connected said these first running channels respectively, and said these demoulding pipelines connect said shaping groove, advance plastics that the glue end seen off through said these first and second running channel and demoulding pipelines for said master; And reach in the said shaping groove
Wherein be respectively equipped with in each said these demoulding pipelines and be suitable for the demoulding unit that said mobile module is stretched out in activity; Said demoulding unit is when stretching out the said opening of said demoulding pipelines; Block the plastics that stretch out said second running channel, and release the plastics of said demoulding pipelines.
2. the mould of in-mold decoration transfer apparatus according to claim 1 is characterized in that, the contiguous said shaping groove of an end opening of said these first running channels, and an end opening of respectively corresponding said these second running channels.
3. in-mold decoration transfer apparatus according to claim 2, it is characterized in that the opening surface of each said these demoulding pipelines is to said shaping groove.
4. the mould of in-mold decoration transfer apparatus according to claim 3 is characterized in that, said demoulding unit is arranged in the position of said demoulding pipelines away from the said opening of said second running channel and said demoulding pipelines.
5. the mould of in-mold decoration transfer apparatus according to claim 4 is characterized in that, the sectional area of said demoulding unit meets the bore of said these demoulding pipelines.
6. the mould of in-mold decoration transfer apparatus according to claim 1 is characterized in that, the bore of each said these demoulding pipelines is between 2.0～5.0 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810215670XA CN101670651B (en) | 2008-09-12 | 2008-09-12 | Mould for forming in-mould decoration transfer printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810215670XA CN101670651B (en) | 2008-09-12 | 2008-09-12 | Mould for forming in-mould decoration transfer printing device |
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| Publication Number | Publication Date |
|---|---|
| CN101670651A CN101670651A (en) | 2010-03-17 |
| CN101670651B true CN101670651B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810215670XA Active CN101670651B (en) | 2008-09-12 | 2008-09-12 | Mould for forming in-mould decoration transfer printing device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183072A (en) * | 1996-01-31 | 1998-05-27 | 日本写真印刷株式会社 | Apparatus for molding patterned product and method of molding patterned |
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2008
- 2008-09-12 CN CN200810215670XA patent/CN101670651B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183072A (en) * | 1996-01-31 | 1998-05-27 | 日本写真印刷株式会社 | Apparatus for molding patterned product and method of molding patterned |
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| CN101670651A (en) | 2010-03-17 |
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