CN101289008A - Module for injection forming and production method of injection forming article - Google Patents
Module for injection forming and production method of injection forming article Download PDFInfo
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- CN101289008A CN101289008A CNA2008101087115A CN200810108711A CN101289008A CN 101289008 A CN101289008 A CN 101289008A CN A2008101087115 A CNA2008101087115 A CN A2008101087115A CN 200810108711 A CN200810108711 A CN 200810108711A CN 101289008 A CN101289008 A CN 101289008A
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Abstract
An injection forming product is disclosed, which is an injection forming product (15b) that a transfer layer (29) is connected to a surface of the injection forming product to be integrated with the injection forming product, wherein the shape of section at the smallest part of the radius r of curvature of the injection forming product is that, R is no less than D and r*R/D is no less than 0.2 but no more than 30, wherein the radius r of curvature: the radius of curvature (MM) of top surface parts (11b) of outer and inner circumferences of the injection forming product at the time of overlooking; R: the radius of curvature (MM) of top surface parts of outer and inner circumferences of the injection forming product in terms of the section; D: the height (MM) from the top surface parts of outer and inner circumferences to a reference surface (10b) in the injection forming product in terms of the section.
Description
Technical field
The present invention relates to the injection-molded article and manufacture method and the injection mold that then become one in its surface and with it such as the transfer printing layers such as housing of adorning panel, Pinball machine inside and outside the panel of the surface elements of the loam cake of portable verbal system and lower cover, electronic toy and exterior member, electric cooker power input part and the automobile.
Background technology
Past, as not only also increasing the method for decoration at the summit portion on injection-molded article surface but also at lateral parts, employing be the method that transfer printing layer is then become one with it to the surface of injection-molded article.
But, as the periphery on injection-molded article surface or the shape in interior week, different persons (for example with each position radius of curvature r (radius of curvature in the end face bight in the periphery of injection-molded article or interior week when overlooking), the present invention can be shaped and Fig. 1, Fig. 2 of being difficult in the past be shaped, Fig. 3, Fig. 4, injection-molded article shown in Figure 7) in the majority, when transfer printing layer was then become one with it to the surface of this class injection-molded article, following problems can appear in the position of above-mentioned radius of curvature r minimum.
(1) as the shape of the section of injection-molded article, when distance D (distance) and distance H (distance) from the summit portion of the recess of the section injection-molded article of injection-molded article to datum level from the periphery of the section injection-molded article of injection-molded article or the summit portion in interior week to datum level bigger, and radius of curvature R (from the periphery of the section injection-molded article of injection-molded article or the radius of curvature in the end face bight in interior week), radius of curvature R
2(seeing the periphery of injection-molded article or the radius of curvature in the die joint bight in interior week (hole portion)) from section, demoulding slope A (from the periphery of the section injection-molded article of injection-molded article or the demoulding slope in the die joint bight in interior week) is hour (with reference to Fig. 5, Fig. 6, the present invention can be shaped and Figure 14 of the injection-molded article that is difficult in the past be shaped), injection-molded article is not easy the demoulding from injection mold, and, because shaping resin will clamp-on the very sharp bight of angle, thus produced the breaking of the crackle 200 of transfer printing layer 29 and transfer materials 20 (transfer printing layer 29 break 201 and matrix sheet material 21 break 202) (with reference to Figure 10).Datum level described here, but the plane that the dynamic model that transfer materials is clipped in the middle when being meant matched moulds contacts with fixed die.But but have a plurality of occasions on the plane that dynamic model as shown in figure 12 contacts with fixed die, with the plane of the most close fixed die one side as datum level.
(2) as the shape of the section of injection-molded article, when above-mentioned distance D and less, above-mentioned radius of curvature R of above-mentioned distance H and above-mentioned radius of curvature R
2During with above-mentioned demoulding slope A big (can be shaped and Figure 14 of the injection-molded article that is difficult in the past be shaped with reference to Fig. 8, Fig. 9, the present invention), the profile of the periphery of resulting injection-molded article or the summit portion in interior week (recess) is unintelligible, and appearance design is poor.
Here, above-mentioned radius of curvature r, be meant that the periphery of injection-molded article when overlooking or the radius of curvature of the summit portion in interior week (hole portion) (for example can references, the present invention can be shaped and radius of curvature B1～B17, Fig. 4 of radius of curvature H1～H9, Fig. 3 of radius of curvature A1 injection-molded article, Fig. 1～A9, Fig. 2 of being difficult in the past be shaped radius of curvature F1～F4), unit is mm.Above-mentioned radius of curvature R is meant from section and sees the periphery of injection-molded article or the radius of curvature (with reference to Fig. 5, Fig. 6, Fig. 8, Fig. 9) in the end face bight in interior week (hole portion) that unit is mm.Above-mentioned radius of curvature R
2, be meant from section and see the periphery of injection-molded article or the radius of curvature (with reference to Fig. 6, Fig. 9) in the die joint bight in interior week (hole portion) that unit is mm.Above-mentioned distance D and above-mentioned distance H are meant from section and see the periphery of injection-molded article or the summit portion in interior week (recess) distance (with reference to Fig. 5, Fig. 6, Fig. 8, Fig. 9) to datum level that unit is mm.And above-mentioned demoulding slope A is meant from section and sees the periphery of injection-molded article or the demoulding slope (with reference to Fig. 5, Fig. 6, Fig. 8, Fig. 9) in the die joint bight in interior week (recess), unit for the degree (°).
Summary of the invention
Therefore, the objective of the invention is, address the above problem the injection mold of the injection-molded article of provide a kind of and can access that transfer printing layer can not crack, transfer materials can not break, the appearance design of the clear-cut of periphery or the summit portion in interior week (recess) is good and the manufacture method of injection-molded article.
For achieving the above object, the following formation of the present invention.
According to the 1st scheme of the present invention, the injection-molded article that provides a kind of transfer printing layer then to become one with it in its surface,
The section configuration at the position of the radius of curvature r minimum of described injection-molded article is, R＜D and 0.1≤r * R * A/D≤10,
Wherein, described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking, R: see the described periphery of described injection-molded article or the radius of curvature (mm) of the described summit portion in described interior week from section, D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level, A: from section see described injection-molded article described periphery or described in week the die joint bight demoulding slope (°).
According to the 2nd scheme of the present invention, the injection-molded article that provides a kind of transfer printing layer then to become one with it in its surface,
The section configuration at the position of the radius of curvature r minimum of described injection-molded article is, R 〉=D and 0.2≤r * R/D≤30,
Wherein, described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking, R: from section see described injection-molded article described periphery or described in the radius of curvature (mm) of described summit portion in week, D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level.
According to the 3rd scheme of the present invention, the injection-molded article that provide that a kind of transfer printing layer then becomes one with it in its surface, forms protuberance or recess on its surface,
The section configuration at the position of the radius of curvature r minimum of described protuberance or described recess is 0.01≤r * R * R
2* A/H≤1.0,
Wherein, described radius of curvature r: the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article or described recess when overlooking, R: see the radius of curvature (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess, R from section
2: the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H: see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess from section, A to datum level: from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°).
According to the 4th scheme of the present invention, provide a kind of as the described injection-molded article of the 1st scheme, at least one among the radius of curvature R of described injection-molded article or demoulding slope A or the distance D is all identical at all positions.
According to the 5th scheme of the present invention, provide a kind of as the described injection-molded article of the 2nd scheme, at least one among the radius of curvature R of described injection-molded article or the distance D is all identical at all positions.
According to the 6th scheme of the present invention, provide a kind of as the described injection-molded article of the 3rd scheme, the radius of curvature R of described injection-molded article or radius of curvature R and radius of curvature R
2, or demoulding slope A or height H among at least one all identical at all positions.
According to the 7th scheme of the present invention, provide a kind of as the described injection-molded article of the 1st scheme, section configuration at the position of radius of curvature r minimum described in the 1st zone of described injection-molded article is R＜D and 0.1≤r * R * A/D≤10, and be R 〉=D and 0.2≤r * R/D≤30 in the section configuration with the position of radius of curvature r minimum described in different the 2nd zone, described the 1st zone, wherein, described radius of curvature r in described the 2nd zone, be the periphery of described injection-molded article when overlooking or the radius of curvature (mm) of the summit portion in interior week, R in described the 2nd zone, be to see the described periphery of described injection-molded article or the radius of curvature of the described summit portion in described interior week from section, D in described the 2nd zone, be from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level.
According to the 8th scheme of the present invention, provide a kind of as the described injection-molded article of the 1st scheme,
Section configuration at the position of radius of curvature r minimum described in the 1st zone of described injection-molded article is R＜D and 0.1≤r * R * A/D≤10, and is 0.01≤r * R * R in the section configuration at the position of the radius of curvature r minimum of protuberance described in the 3rd zone different with described the 1st zone or described recess
2* A/H≤1.0,
Wherein, described radius of curvature r in described the 3rd zone, it is the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article when overlooking or described recess, R in described the 3rd zone, be the radius of curvature (mm) of seeing the described summit portion of the described protuberance of described injection-molded article or described recess from section, the R in described the 3rd zone
2It is the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H in described the 3rd zone, be to see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess to datum level from section, the A in described the 3rd zone, be from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°).
According to the 9th scheme of the present invention, provide a kind of as the described injection-molded article of the 2nd scheme,
Section configuration at the position of radius of curvature r minimum described in the 2nd zone of described injection-molded article is R 〉=D and 0.2≤r * R/D≤30, and is 0.01≤r * R * R in the section configuration at the position of the radius of curvature r minimum of protuberance described in the 3rd zone different with described the 2nd zone or described recess
2* A/H≤1.0,
Wherein, described radius of curvature r in described the 3rd zone, it is the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article when overlooking or described recess, R in described the 3rd zone, be the radius of curvature (mm) of seeing the described summit portion of the described protuberance of described injection-molded article or described recess from section, the R in described the 3rd zone
2It is the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H in described the 3rd zone, be to see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess to datum level from section, A in described the 3rd zone, be from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°).
According to the 10th scheme of the present invention, provide a kind of as the described injection-molded article of the 1st scheme,
Section configuration at the position of radius of curvature r minimum described in the 1st zone of described injection-molded article is R＜D and 0.1≤r * R * A/D≤10,
In the section configuration with the position of radius of curvature r minimum described in different the 2nd zone, described the 1st zone is R 〉=D and 0.2≤r * R/D≤30, wherein, described radius of curvature r in described the 2nd zone, be the periphery of described injection-molded article when overlooking or the radius of curvature (mm) of the summit portion in interior week, R in described the 2nd zone, be to see the described periphery of described injection-molded article or the radius of curvature of the described summit portion in described interior week from section, D in described the 2nd zone, be from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level
And be 0.01≤r * R * R in the section configuration with the position of the radius of curvature r minimum of protuberance described in different the 3rd zone in described the 1st zone and described the 2nd zone or described recess
2* A/H≤1.0, wherein, described radius of curvature r in described the 3rd zone, it is the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article when overlooking or described recess, R in described the 3rd zone, be the radius of curvature (mm) of seeing the described summit portion of the described protuberance of described injection-molded article or described recess from section, the R in described the 3rd zone
2It is the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H in described the 3rd zone, be to see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess to datum level from section, the A in described the 3rd zone, be from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°).
According to the 11st scheme of the present invention, a kind of manufacture method of injection-molded article is provided,
But at the dynamic model that contacts with transfer materials at least with have between the fixed die of shaping resin injection port, place the described transfer materials that has transfer printing layer on the matrix sheet material,
But the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin,
But by described dynamic model or fixed die; when the bend that can make the section configuration at position of radius of curvature r minimum of described injection-molded article be shaped with R＜D and 0.1≤r * R * A/D≤10 forms the injection-molded article of the described radius of curvature r with described section configuration; make described transfer printing layer then on the surface of described injection-molded article and become one with it; wherein; described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking; R: see the described periphery of described injection-molded article or the radius of curvature (mm) of the described summit portion in described interior week from section; D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level, A: from section see described injection-molded article described periphery or described in week the die joint bight demoulding slope (°).
According to the 12nd scheme of the present invention, a kind of manufacture method of injection-molded article is provided,
But at the dynamic model that contacts with transfer materials at least with have between the fixed die of shaping resin injection port, place the described transfer materials that has transfer printing layer on the matrix sheet material,
But the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin,
But by described dynamic model or fixed die; when the bend that can make the section configuration at position of radius of curvature r minimum of described injection-molded article be shaped with R 〉=D and 0.2≤r * R/D≤30 forms the injection-molded article of the described radius of curvature r with described section configuration; make described transfer printing layer then on the surface of described injection-molded article and become one with it; wherein; described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking; R: from section see described injection-molded article described periphery or described in the radius of curvature (mm) of described summit portion in week, D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level.
According to the 13rd scheme of the present invention, a kind of manufacture method of injection-molded article is provided,
But at the dynamic model that contacts with transfer materials at least with have between the fixed die of shaping resin injection port, place the described transfer materials that has transfer printing layer on the matrix sheet material,
But the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin,
But in the section configuration at the position by radius of curvature r minimum described dynamic model or fixed die, that can make described injection-molded article with 0.01≤r * R * R
2When the bend that * A/H≤1.0 are shaped forms the injection-molded article of the described radius of curvature r with described section configuration, make described transfer printing layer then on the surface of described injection-molded article and become one with it, wherein, described radius of curvature r: the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article or described recess when overlooking, R: see the radius of curvature (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess, R from section
2: the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H: see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess from section, A to datum level: from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°).
According to the 14th scheme of the present invention, a kind of injection mold is provided,
Have, but the dynamic model that contacts with transfer materials at least and,
Fixed die with shaping resin injection port, and,
But a certain side among described dynamic model or the fixed die has at least; can make the bend that the section configuration at position of radius of curvature r minimum of described injection-molded article is shaped with R＜D and 0.1≤r * R * A/D≤10; wherein; described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking; R: see the described periphery of described injection-molded article or the radius of curvature (mm) of the described summit portion in described interior week from section; D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level; A: from section see described injection-molded article described periphery or described in the week the die joint bight demoulding slope (°)
But between described dynamic model and described fixed die, the described transfer materials that has transfer printing layer on the matrix sheet material can be set, but the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin, when forming injection-molded article, make described transfer printing layer then on the surface at described injection-molded article and become one with it.
According to the 15th scheme of the present invention, a kind of injection mold is provided,
Have, but the dynamic model that contacts with transfer materials at least and,
Fixed die with shaping resin injection port, and,
But a certain side among described dynamic model or the fixed die has at least; can make the bend that the section configuration at position of radius of curvature r minimum of described injection-molded article is shaped with R 〉=D and 0.2≤r * R/D≤30; wherein; described radius of curvature r: the radius of curvature of the summit portion in the periphery of described injection-molded article or interior week (mm) when overlooking; R: see the described periphery of described injection-molded article or the radius of curvature (mm) of the described summit portion in described interior week from section; D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level
But between described dynamic model and described fixed die, the described transfer materials that has transfer printing layer on the matrix sheet material can be set, but the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin, when forming injection-molded article, make described transfer printing layer then on the surface at described injection-molded article and become one with it.
According to the 16th scheme of the present invention, a kind of injection mold is provided,
Have, but the dynamic model that contacts with transfer materials at least and,
Fixed die with shaping resin injection port, and,
But a certain side among described dynamic model or the fixed die has at least, can make the section configuration at position of radius of curvature r minimum of described injection-molded article with 0.01≤r * R * R
2The bend that * A/H≤1.0 are shaped, wherein, described radius of curvature r: the radius of curvature (mm) of the summit portion of the described protuberance of described injection-molded article or described recess when overlooking, R: see the radius of curvature (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess, R from section
2: the radius of curvature (mm) of seeing the bottom of the described protuberance of described injection-molded article or described recess from section, H: see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess to datum level from section, A: from section see the end face bight of the described protuberance of described injection-molded article or described recess demoulding slope (°)
But between described dynamic model and described fixed die, the described transfer materials that has transfer printing layer on the matrix sheet material can be set, but the shaping that forms to described dynamic model and described fixed die matched moulds with in the space from described shaping resin injection port injection molding resin, when forming injection-molded article, make described transfer printing layer then on the surface at described injection-molded article and become one with it.
Description of drawings
From the description of carrying out with regard to relevant best form of implementation in conjunction with the accompanying drawings, can understand above-mentioned purpose of the present invention and other purpose and feature.In these accompanying drawings,
Fig. 1 is the vertical view of a loam cake example, portable verbal system of the related injection-molded article of the present invention's the 1st form of implementation,
Fig. 2 is the vertical view of the loam cake another example, portable verbal system of the related injection-molded article of above-mentioned the 1st form of implementation of the present invention,
Fig. 3 is the vertical view of the lower cover another example, portable verbal system of the related injection-molded article of above-mentioned the 1st form of implementation of the present invention,
Fig. 4 is the vertical view of the lower cover another example, portable verbal system of the related injection-molded article of above-mentioned the 1st form of implementation of the present invention,
Fig. 5 is the partial sectional view of an example of existing injection-molded article and injection mold,
Fig. 6 is the partial sectional view of an example of existing injection-molded article and injection mold,
Fig. 7 is the stereogram of the injection-molded article of Fig. 3,
Fig. 8 is the partial sectional view of an example of existing injection-molded article and injection mold,
Fig. 9 is the partial sectional view of an example of existing injection-molded article and injection mold,
Figure 10 is to the breaking and the key diagram that breaks and showed of transfer materials of the transfer printing layer that comes from the former of existing injection-molded article and injection mold thereby produce,
Figure 11 is the partial sectional view of an example of related injection-molded article of the present invention's the 1st form of implementation and injection mold,
Figure 12 is the cutaway view of an example of related injection-molded article of the present invention's the 2nd form of implementation and injection mold,
Figure 13 is the cutaway view of an example of related injection-molded article of the present invention's the 3rd form of implementation and injection mold,
Figure 14 is the cutaway view of an example of related injection-molded article of the present invention's the 3rd form of implementation and injection mold,
Figure 15 is the cutaway view of an example of related injection-molded article of the present invention's the 4th form of implementation and injection mold,
Figure 16 is a cutaway view that operation is showed of injection-molded article manufacture method that above-mentioned the 1st～the 4th form of implementation of the present invention is related separately to,
Figure 17 is the Figure 16 that continues, to a cutaway view that operation is showed of the related above-mentioned injection-molded article manufacture method of above-mentioned form of implementation of the present invention,
Figure 18 is the Figure 17 that continues, to a cutaway view that operation is showed of the related above-mentioned injection-molded article manufacture method of above-mentioned form of implementation of the present invention,
Figure 19 is the stereogram of the injection-molded article of Figure 13,
Figure 20 is the stereogram of the injection-molded article of Figure 14,
Figure 21 be above-mentioned the 1st～the 4th form of implementation of the present invention the cutaway view of an example of the transfer materials that uses separately,
Figure 22 is as the cutaway view of the injection-molded article that the result of the injection moulding of Figure 11 obtains, above-mentioned the 1st form of implementation of the present invention is related,
Figure 23 is as the cutaway view of the injection-molded article that the result of the injection moulding of Figure 12 obtains, above-mentioned the 2nd form of implementation of the present invention is related,
Figure 24 is as the cutaway view of the injection-molded article that the result of the injection moulding of Figure 13 obtains, above-mentioned the 3rd form of implementation of the present invention is related,
Figure 25 is as the cutaway view of the injection-molded article that the result of the injection moulding of Figure 14 obtains, above-mentioned the 3rd form of implementation of the present invention is related,
Figure 26 is as the cutaway view of the injection-molded article that the result of the injection moulding of Figure 15 obtains, above-mentioned the 4th form of implementation of the present invention is related.
The specific embodiment
Before the present invention being proceeded description, given identical numbering to the identical parts in the accompanying drawing.
Below, in conjunction with the accompanying drawings various forms of implementation of the present invention are elaborated.Promptly, Figure 11 is the partial sectional view of an example of related injection-molded article of the present invention's the 1st form of implementation and injection mold, Figure 12 is the cutaway view of an example of related injection-molded article of the present invention's the 2nd form of implementation and injection mold, Figure 13 is the cutaway view of an example of related injection-molded article of the present invention's the 3rd form of implementation and injection mold, Figure 14 is the cutaway view of an example of related injection-molded article of the present invention's the 3rd form of implementation and injection mold, and Figure 15 is the cutaway view of an example of related injection-molded article of the present invention's the 4th form of implementation and injection mold.
At first, the related injection-molded article of above-mentioned the 1st form of implementation of the present invention is described.The related injection-molded article of above-mentioned the 1st form of implementation of the present invention is the injection-molded article 15a that the transfer printing layer of transfer materials 13a is then become one in its surface and with it as shown in figure 11, is the injection-molded article 15a that satisfies following specified conditions.Fig. 1～Fig. 4 is an example of the related injection-molded article of the present invention's the 1st form of implementation, the vertical view of the loam cake of portable verbal system, Fig. 2 is another example of above-mentioned the 1st form of implementation of the present invention related injection-molded article, the vertical view of the loam cake of portable verbal system, Fig. 3 is another example of above-mentioned the 1st form of implementation of the present invention related injection-molded article, the vertical view of the lower cover of portable verbal system, Fig. 4 are another examples of above-mentioned the 1st form of implementation of the present invention related injection-molded article, the vertical view of the lower cover of portable verbal system.The 81st, hole, the 85th, breach.
If establish r and be the periphery of injection-molded article 15a when overlooking or the summit portion 11a in interior week bight 41a radius of curvature (mm) (specifically, for example can be with reference to radius of curvature B1～B17 of radius of curvature H1～H9, Fig. 3 of radius of curvature A1～A9, Fig. 2 of Fig. 1, the radius of curvature F1 of Fig. 4～F4); R is a radius of curvature (mm) of seeing the bight 41a of the periphery of above-mentioned injection-molded article 15a or the summit portion 11a in interior week from section; D sees the periphery of above-mentioned injection-molded article 15a or the summit portion 11a in the interior week distance (mm) to datum level 10a from section; A be from section see the periphery of above-mentioned injection-molded article 15a or the demoulding slope of the die joint bight 42a in interior week (°), then when R＜D, form straight lateral parts 6a near the bottom of the periphery of injection-molded article 15a, demoulding slope A is equivalent to this straight lateral parts 6a and perpendicular to the angle between the plane of bottom 19a.Know through detailed test, in the 1st form of implementation, the relation of being inversely proportional between radius of curvature r and radius of curvature R and the demoulding slope A, they and distance D square proportional.Promptly, for the 1st form of implementation, if the position of radius of curvature r minimum (for example among the selection injection-molded article 15a, radius of curvature A5 among Fig. 1, radius of curvature H7 among Fig. 2, radius of curvature B7 among Fig. 3, positions such as the radius of curvature F1 among Fig. 4), make its shape satisfy the relational expression of R＜D and 0.1≤r * R * A/D≤10, then has such effect, that is, can access transfer printing layer can not produce break, transfer materials can not break, the good injection-molded article of appearance design of the clear-cut of periphery or the summit portion in interior week (recess).
That is to say that the position of the radius of curvature r minimum of injection-molded article 15a is necessary to make its radius of curvature R big as far as possible or increase demoulding slope A so that the shape of section satisfies the above-mentioned relation formula.But, if it (is radius of curvature R 〉=D) with distance D greater than distance D that radius of curvature R equates (Figure 12 of the injection-molded article 15b of the 2nd form of implementation) or radius of curvature R, section configuration will become circular arc and not form flat part, can't define demoulding slope A, therefore the relational expression of the 1st form of implementation is no longer suitable.In this occasion, if as the 2nd form of implementation, demoulding slope A is removed from relational expression, select the position of radius of curvature r minimum on the injection-molded article, make the shape of its section satisfy the relational expression of 0.2≤r * R/D≤30, then has such effect, that is, can access transfer printing layer can not produce break, transfer materials can not break, the good injection-molded article of appearance design of the clear-cut of periphery or the summit portion in interior week (recess).
In the 2nd form of implementation, r be the periphery of injection-molded article 15b when overlooking or the summit portion 11b in interior week bight 41b radius of curvature (mm) (specifically, radius of curvature B1～the B17 of radius of curvature H1～H9, Fig. 3 that for example is equivalent to radius of curvature A1～A9, Fig. 2 of Fig. 1, the radius of curvature F1 of Fig. 4～F4); R is a radius of curvature (mm) of seeing the bight 41b of the periphery of above-mentioned injection-molded article 15b or the summit portion 11b in interior week from section; D sees the periphery of above-mentioned injection-molded article 15b or the summit portion 11b in the interior week distance (mm) to datum level 10b from section.
In addition, as the 3rd form of implementation of the present invention, it can be a kind of like this form of implementation, promptly, the interior circumferential portion of above-mentioned injection-molded article does not connect and is the shape with recess, that is to say, on the summit portion 11c of injection-molded article 15c, form the protuberance 81c (with reference to Figure 13, Figure 19) of protruding literal etc.13c is a transfer materials, but 1c is a dynamic model, and 41c is end face bight (radius of curvature R), and 6c is a flat part, and 10c is a datum level, and 2c is a fixed die, and 12c is an injection port, and 42c is a die joint bight (radius of curvature R
2).In addition, can also be form of implementation (with reference to Figure 14, Figure 20) in contrast, that on the summit portion 11d of injection-molded article 15d, form the recess 82d of groove or depression literal etc.13d is a transfer materials, but 1d is a dynamic model, and 41d is end face bight (radius of curvature R), and 6d is a flat part, and 10d is a datum level, and 2d is a fixed die, and 12d is an injection port, and 42d is a die joint bight (radius of curvature R
2).For above-mentioned the 3rd form of implementation, must be with the die joint bight 42c of protuberance 81c or recess 82d, the radius of curvature R of 42d
2Take into account to the distance H of datum level 10c, 10d with summit portion 11c, the 11d of protuberance 81c that sees injection-molded article 15c, 15d from section or recess 82d, relational expression is different in the time of will be with the 1st form of implementation and the 2nd form of implementation.That is, for the 3rd form of implementation, the position as if the radius of curvature r minimum of protuberance 81c or recess 81d among selection injection-molded article 15c, the 15d makes the shape of its section satisfy 0.01≤radius of curvature r * R * R
2The relational expression of * A/H≤0.1 then has such effect, that is, can access transfer printing layer can not produce break, transfer materials can not break, the good injection-molded article of appearance design of the clear-cut of periphery or the summit portion in interior week (recess).
R be the periphery of injection-molded article 15c, 15d when overlooking or summit portion 11c, the 11d in interior week bight 41c, 41d radius of curvature (mm) (specifically, radius of curvature B1～the B17 of radius of curvature H1～H9, Fig. 3 that for example is equivalent to radius of curvature A1～A9, Fig. 2 of Fig. 1, the radius of curvature F1 of Fig. 4～F4); R is a radius of curvature (mm) of seeing bight 41c, the 41d of the periphery of above-mentioned injection-molded article or summit portion 11c, the 11d in interior week from section; D sees the periphery of above-mentioned injection-molded article 15c, 15d or summit portion 11c, the 11d in the interior week distance (mm) to datum level 10c, 10d from section; A be from section see the periphery of above-mentioned injection-molded article 15c, 15d or the demoulding slope of die joint bight 42c, the 42d in interior week (°); R
2Be from section see the protuberance 81c of above-mentioned injection-molded article 15c, 15d or recess 82d the bottom, the radius of curvature of die joint bight 42c, 42d (mm) in other words; H sees summit portion 11c, the 11d of the protuberance 81c of injection-molded article 15c, 15d or the recess 82d height (mm) to datum level 10c, 10d from section.
The relational expression of the 1st～the 3rd form of implementation, be only applicable to that the position of radius of curvature r minimum (for example is equivalent to the radius of curvature H7 of radius of curvature A5, Fig. 2 of Fig. 1, the radius of curvature B7 of Fig. 3 among injection-molded article 15a, 15b, 15c, the 15d, positions such as the radius of curvature F1 of Fig. 4), and bigger position and straight line position (the radius of curvature A4 of Fig. 1, the radius of curvature B13 of Fig. 4 and the radius of curvature B15) of radius of curvature r is not to satisfy the above-mentioned relation formula.That is, both can be so that the bigger position of radius of curvature r and radius of curvature R, the radius of curvature R at straight line position
2, demoulding slope A is less than radius of curvature R, the radius of curvature R at the position of radius of curvature r minimum
2, demoulding slope A, perhaps make the distance D at position that radius of curvature r is bigger and straight line position or distance H greater than the distance D at the position of radius of curvature r minimum or distance H to satisfy relational expression, also can be so that the bigger position of radius of curvature r and radius of curvature R, the radius of curvature R at straight line position
2, among the demoulding slope A, distance D, distance H at least one radius of curvature R, the radius of curvature R with the position of radius of curvature r minimum
2, among the demoulding slope A, distance D, distance H at least one be identical.
But, change radius of curvature R, the radius of curvature R at each position of injection-molded article
2, demoulding slope A, distance D, distance H, bother very much in design with when making injection mold, therefore, when no special circumstances, no matter which position of injection-molded article all makes its radius of curvature R, radius of curvature R
2, among the demoulding slope A, distance D, distance H at least one be identical, can raise the efficiency, thereby this is desirable.As an example, in the related Figure 15 of the 4th form of implementation that combines by the 1st～the 3rd form of implementation, though injection-molded article 15e is divided into the 1st area I, the 2nd area I I that uses the 2nd form of implementation that uses the 1st form of implementation, the 3rd area I II that uses the 3rd form of implementation, but no matter which position or the zone of injection-molded article 15e, all radius of curvature R, radius of curvature R
2, demoulding slope A, distance D, distance H be all identical.This and the radius of curvature R, the radius of curvature R that change each position of injection-molded article
2, demoulding slope A, distance D, distance H way compare the workload in the time of can reducing design significantly and make injection mold.
For the 4th form of implementation that has the position of a plurality of the 1st～the 3rd forms of implementation on the injection-molded article 15e, must make each related separately position of the 1st～the 3rd form of implementation or area I, II, III satisfy relational expression (with reference to Figure 15) separately.13e is a transfer materials, and 81e is a protuberance, and 11e is a summit portion, but 1e is a dynamic model, and 41e is end face bight (radius of curvature R), and 6e is a flat part, and 10e is a datum level, and 2e is a fixed die, and 12e is an injection port, and 42e is a die joint bight (radius of curvature R
2).
The shape of these injection-molded articles 15a, 15b, 15c, 15d, 15e exists positive and negative relation with the shape of injection mold.Promptly, the value of the radius of curvature r of related injection-molded article 15a, the 15b of above-mentioned the 1st～the 4th form of implementation of the present invention, 15c, 15d, 15e, radius of curvature R, distance D, demoulding slope A, distance H, but respectively by the shape decision of the radius of curvature r of dynamic model 1a, 1b, 1c, 1d, 1e, radius of curvature R, distance D, demoulding slope A, distance H.For this reason, the injection mold that is intended to obtain above-mentioned the 1st～the 4th form of implementation of the present invention related injection-molded article 15a, 15b, 15c, 15d, 15e is described.The related injection mold of above-mentioned the 1st～the 4th form of implementation of the present invention, to have, but dynamic model 1a, 1b, 1c, 1d, the 1e that contacts with transfer materials 13a, 13b, 13c, 13d, 13e at least, and, have shaping resin injection port 12a, 12b, 12c, fixed die 2a, the 2b of 12d, 12e, 2c, 2d, 2e, and constitute (with reference to Figure 16).Among the Figure 16 to Figure 18 that when injection mold is described, will relate to, but but dynamic model 1a, 1b, 1c, 1d, 1e are represented with dynamic model 1, fixed die 2a, 2b, 2c, 2d, 2e are represented with fixed die 2, shaping resin injection port 12a, 12b, 12c, 12d, 12e are represented with shaping resin injection 12, transfer materials 13a, 13b, 13c, 13d, 13e are represented with transfer materials 13.But 1A is the die cavity of dynamic model 1 one sides, and 2A is the die cavity of fixed die 2 one sides, the 30th, and shaping resin, the 33rd, formingspace portion.
At first, but from injection-molded article 15 whether easily the angle of the demoulding from the dynamic model 1 of the related injection mold of above-mentioned the 1st～the 4th form of implementation of the present invention analyze.
But the distance D of dynamic model 1 and distance H are big more, and the degree of depth that injection-molded article 15 embeds is then dark more, but thereby injection-molded article 15 be not easy the demoulding from dynamic model 1, otherwise, but the distance D of dynamic model 1 and distance H are more little, but the easy more demoulding from dynamic model 1 of injection-molded article 15.
But, even but the distance D of dynamic model 1 and distance H are less, if radius of curvature R and radius of curvature R
2More little then bight is sharp-pointed more, but thereby injection-molded article 15 be not easy the demoulding from dynamic model 1, otherwise, even but the distance D of dynamic model 1 and distance H are bigger, if radius of curvature R and radius of curvature R
2Bigger, then can the very sharp bight of angulation, but thereby injection-molded article 15 demoulding from dynamic model 1 easily.
In addition, even but the distance D of dynamic model 1 and distance H are less or, radius of curvature R and radius of curvature R
2Bigger, if demoulding slope A is less, but then injection-molded article 15 can by 42 armfuls in the die joint bights of dynamic model 1 tighter, but thereby injection-molded article 15 be not easy the demoulding from dynamic model 1.Otherwise, even but the distance D of dynamic model 1 and distance H are big or, radius of curvature R and radius of curvature R
2Bigger, if demoulding slope A is bigger, but then injection-molded article 15 not can by 42 armfuls in the die joint bight of dynamic model 1 tighter, but thereby injection-molded article 15 demoulding from dynamic model 1 easily.
From above angle, and, which type of optimum condition can prevent that the transfer printing layer 29 of transfer materials 13 from producing and break and transfer materials 13 breaks, can prevent to cause because of transfer materials 13 and shaping resin 30 stickups are tight that peeling off equal angles between transfer materials 13 and the shaping resin takes all factors into consideration and carried out actual tests, its result has derived the relational expression of above-mentioned the 1st～the 3rd form of implementation.Test described here is the injection-molded article that has Fig. 1～various radius of curvature r shown in Figure 4 with respect to its shape, the test that transfer printing layer is then become one in its surface and with it.Specifically, be at each position, make radius of curvature r and distance D keep desirable numerical value as far as possible, by changing radius of curvature R and demoulding slope A to seek can not take place the test of the setting range of problem.
The radius of curvature F1 of Fig. 4, the result of the test of radius of curvature F4 shown in the radius of curvature B7 of Fig. 3, the table 4 shown in the radius of curvature H7 of Fig. 2, the table 3 shown in the radius of curvature A5 of Fig. 1 shown in the table 1 below and radius of curvature A6, the table 2.Why selecting radius of curvature A6 here, is because it is the position of satisfying the value minimum of D＞R and radius of curvature r among the position of measuring.Why selecting radius of curvature A5, is because it is the position of satisfying the value minimum of D≤R and radius of curvature r among the position of measuring.Why selecting radius of curvature H7, is because it is the position of the value minimum of radius of curvature r among the position of measuring.Why selecting radius of curvature B7, is because it is the position of the value minimum of radius of curvature r among the position of measuring.Why selecting radius of curvature F1, is because it is the position of satisfying the value minimum of D＞R and radius of curvature r among the position of measuring.Why selecting radius of curvature F4, is because it is the position of satisfying the value minimum of D≤R and r among the position of measuring.
Table 1
| Measure the position | r | R | A | D | D-R | r×R×A /D | r×R /D |
| A1 | 0.34 | 3.26 | 23.89 | 2.29 | -0.96 | ||
| A2 | 88.72 | 4.50 | 33.36 | 2.47 | -2.03 | ||
| A3 | 93.83 | 0.27 | 7.76 | 0.27 | 0.00 | ||
| A4 | 470.32 | 0.30 | 7.76 | 0.29 | -0.01 | ||
| A5 | 0.32 | 3.12 | 15.79 | 2.36 | -0.75 | 0.4 | |
| A6 | 1.05 | 0.25 | 7.00 | 0.26 | 0.01 | 7.18 | |
| A7 | 10.30 | 0.25 | 7.00 | 0.25 | 0.00 | ||
| A8 | 136.49 | 3.63 | 25.19 | 1.87 | -1.76 | ||
| A9 | 4.71 | 0.20 | 6.99 | 0.20 | 0.00 |
Table 2
| Measure the position | r | R | A | D | D-R | r×R×A /D | r×R /D |
| H1 | 228.78 | 4.30 | 11.84 | 6.29 | 1.99 | ||
| H2 | 0.44 | 4.36 | 13.70 | 5.97 | 1.61 | ||
| H4 | 7.72 | 0.08 | 3.02 | 0.43 | 0.35 | ||
| H5 | 433.29 | 0.09 | 2.39 | 0.44 | 0.34 | ||
| H6 | 2.73 | 0.16 | 4.43 | 0.44 | 0.28 | ||
| H7 | 0.26 | 0.10 | 3.51 | 0.42 | 0.32 | 0.22 | |
| H8 | 0.67 | 0.08 | 9.47 | 0.18 | 0.09 | ||
| H9 | 17.49 | 0.10 | 2.99 | 0.61 | 0.51 |
Table 3
| Measure the position | r | R | A | D | D-R | r×R×A /D | r×R /D |
| B1 | 60.76 | 0.33 | 7.87 | 0.37 | 0.05 | ||
| B2 | 44.75 | 0.31 | 7.02 | 0.35 | 0.05 | ||
| B3 | 34.08 | 0.29 | 7.85 | 0.40 | 0.11 | ||
| B4 | 298.76 | 0.29 | 7.01 | 0.37 | 0.08 | ||
| B5 | 61.43 | 0.33 | 7.12 | 0.35 | 0.03 | ||
| B6 | 105.27 | 0.31 | 7.00 | 0.37 | 0.07 | ||
| B7 | 0.18 | 0.29 | 7.52 | 0.35 | 0.06 | 1.12 | |
| B8 | 167.45 | 0.29 | 6.99 | 0.40 | 0.11 | ||
| B9 | 0.22 | 0.33 | 6.95 | 0.40 | 0.08 | ||
| B10 | 567.86 | 0.31 | 7.05 | 0.37 | 0.07 | ||
| B11 | 56.78 | 0.29 | 6.98 | 0.35 | 0.06 | ||
| B12 | 0.21 | 0.29 | 7.01 | 0.40 | 0.11 | ||
| B13 | ∞ | 0.33 | 7.65 | 0.37 | 0.05 | ||
| B14 | 1.98 | 0.31 | 7.00 | 0.37 | 0.07 | ||
| B15 | ∞ | 0.33 | 6.95 | 0.35 | 0.03 | ||
| B16 | 1.58 | 0.31 | 7.58 | 0.40 | 0.10 | ||
| B17 | ∞ | 0.29 | 7.26 | 0.37 | 0.08 |
Table 4
| Measure the position | r | R | A | D | D-R | r×R×A /D | r×R /D |
| F1 | 0.50 | 0.30 | 6.75 | 0.31 | 0.01 | 3.26 | |
| F2 | 122.49 | 0.30 | 17.33 | 0.26 | -0.03 | ||
| F3 | 35.75 | 0.30 | 7.02 | 0.31 | 0.01 | ||
| F4 | 4.38 | 0.35 | 8.30 | 0.30 | -0.05 | 5.07 |
In the relational expression of the 1st～the 3rd form of implementation, all there is permissible range in above-mentioned each parameter.Below, the permissible range of each parameter is described.
At first, in the 1st form of implementation, above-mentioned demoulding slope A is advisable with 0.3 °～45 °.This be because, if greater than 45 °,, carry out the needed pressure of transfer printing because of the flow of shaping resin reduces too much can't fully transmit particularly for the die joint bight, can cause can not finely being adjacent between transfer printing layer 29 and the shaping resin.Even if above-mentioned demoulding slope A is below 45 °, for can accomplish conscientiously fully to transmit carry out the needed pressure of transfer printing and transfer printing layer 29 can not produce break, transfer materials 13 can not break, and makes above-mentioned demoulding slope A at 0.3 °～10 ° scope Nei Gengjia.In addition, in hope injection-molded article 15 is made the occasion of the sightless finished form of lateral parts when overlooking, above-mentioned demoulding slope A is advisable with 0.3 °～5 °.If above-mentioned demoulding slope A is less than 0.3 °, but then injection-molded article 15 is difficult to the demoulding from dynamic model 1.
In the 1st and the 2nd form of implementation, above-mentioned distance D is advisable with 0.15～8.0mm.This be because, if above-mentioned distance D is less than 0.15mm, will make the formation of radius of curvature R and the demoulding slope A difficulty that becomes itself; If above-mentioned distance D is greater than 8.0mm, but in order to make injection-molded article 15 be easy to the demoulding from dynamic model 1, demoulding slope A, radius of curvature R are all increased, its result will cause transfer materials to break because of undue extension.
In the 1st and the 2nd form of implementation, particularly for the parts such as loam cake of mobile phone, need be with above-mentioned distance D and reach the injection-molded article (with reference to Figure 12) that the bigger interior receipts formula end more than several mm forms, and to make this injection-molded article satisfy relational expression, just must make distance D and radius of curvature R all quite big.Interior receipts formula end described here, but be that the face of dynamic model and fixed die butt joint as shown in figure 12 has the end of the injection-molded article of a plurality of, as can to satisfy D≤R conditions, and be the part that constitutes datum level.
Therefore, this injection-molded article is suitable for the relational expression of the 2nd form of implementation, but parting line with the area of the formation face of the horizontal end face of dynamic model along with to the formation face of the end face bottom of fixed die near and the mode that reduces gradually forms, make place, die joint bight be the shape (with reference to Figure 12) that has parting line hardly easily.
And then in the 1st and the 2nd form of implementation, above-mentioned distance D is that 0.3～2.0mm is then better.This be because, if above-mentioned distance D is greater than 2.0mm, then cause easily to transfer printing layer 29 break and transfer materials 13 break be difficult to suppress, must the test of groping property during shaping.And if above-mentioned distance D less than 0.3mm, then the stroke of transfer materials 13 is too little, the cutting property variation of transfer printing layer 29, therefore, unnecessary transfer printing layer 29 will increase attached to amounts on the injection-molded article 15, so-called burr.The amount of burr increases, and may cause it to become scattered about in the mould and is attached on the follow-up injection-molded article 15.
In the 1st and the 2nd form of implementation,,, be advisable with 0.05～2.0mm in its occasion (occasion of R＜D) less than distance D as above-mentioned radius of curvature R.This be because, if radius of curvature R is less than 0.05mm, then matrix sheet material 21 can extend excessively at sectional curve portion place under the pressure of shaping resin, cause transfer printing layer 29 to produce and break, and also causes transfer materials 13 to break easily.If radius of curvature R is greater than 2.0mm, the relational expression that does not then in most cases form flat part 6, the 1 forms of implementation and the 3rd form of implementation can't be set up.For the 2nd form of implementation (in other words, the occasion of R 〉=D), radius of curvature R no maximum.Radius of curvature r in the above-mentioned the 1st and the 2nd form of implementation is 0.05 (mm)≤r.If radius of curvature r is less than 0.05 (mm),, also be difficult to suppress breaking and the generation of breaking of transfer materials 13 of transfer printing layer 29 even change other parameter.The upper limit is ∞.This is owing to exist the cause of the such straight line portion of B13, B15, the B17 of table 3.
On the other hand, the related injection mold of above-mentioned the 3rd form of implementation of the present invention, be to be used for forming the protuberance 81c of literal, figure, symbol, decorative pattern etc. or the injection mold of recess 81d, but on summit portion 11c, the 11d of dynamic model 1c, 1d, have protuberance 81c or recess 81d on the surface of injection-molded article 15.In this occasion, preferably, distance H is that 0.1～1.0mm, radius of curvature R are 0.1～0.4mm, radius of curvature R
2Be that 0.1～0.4mm, demoulding slope A are 2 °～30 °.
In the above-mentioned the 3rd and the 4th form of implementation, above-mentioned distance H is meant the distance to datum level 10c, 10d (with reference to Figure 13, Figure 14) from summit portion 11c, 11d.The occasion (occasion of the 4th form of implementation) that on the summit portion 11e of the injection-molded article 15e of the 1st or the 2nd form of implementation, has the shape of the 3rd form of implementation as protuberance 81e, distance H will be greater than the value (with reference to Figure 15) of distance D, and on summit portion 11a, the 11b of injection-molded article 15a, the 15b of the 1st or the 2nd form of implementation, having the occasion of the shape of the 3rd form of implementation as recess 81d, distance H will be less than the value (with reference to Figure 14) of distance D.
In above-mentioned the 3rd form of implementation, if above-mentioned distance H is less than 0.1mm, then radius of curvature R and radius of curvature R
2And the formation of demoulding slope A itself become the difficulty, concavo-convex degree is not obvious, is difficult to find out the embossment state of literal.If above-mentioned distance H is greater than 1.0mm, but then injection-molded article 15 is not easy the demoulding from dynamic model 1.In addition, the bending of transfer materials and the increasing of extending cause transfer printing layer to produce easily and break, and transfer materials produces fold even break (with reference to Figure 10).
In above-mentioned the 3rd form of implementation, less than 0.1mm, then matrix sheet material 21 can extend excessively at the position with curvature under the pressure of shaping resin as if above-mentioned radius of curvature R, breaks thereby cause transfer printing layer 29 to produce, and also causes transfer materials 13 to break easily.If above-mentioned radius of curvature R is greater than 0.4mm, then the bight will be difficult to find out the embossment state of literal too gently.
In above-mentioned the 3rd form of implementation, if above-mentioned radius of curvature R
2Less than 0.1mm, then matrix sheet material 21 can extend excessively at the position with curvature under the pressure of shaping resin, breaks thereby cause transfer printing layer 29 to produce, and also causes transfer materials 13 to break easily.If above-mentioned radius of curvature R
2Greater than 0.4mm, then the bight will be difficult to find out the embossment state of literal too gently.
In above-mentioned the 3rd form of implementation, less than 2 °, then the bending of transfer materials and the increasing of extending produce on transfer printing layer easily and break, and produce fold even break (with reference to Fig. 7) on the transfer materials as if demoulding slope A.The embossment state that is difficult to find out literal if but the demoulding slope A of dynamic model greater than 30 °, then tilts too gently.Radius of curvature R and radius of curvature R at protuberance or recess
2Big thereby side does not form the occasion of flat part, and demoulding slope A will use radius of curvature R and radius of curvature R
2The tangent slope at flex point place replace.Radius of curvature r in above-mentioned the 3rd form of implementation is 0.05 (mm)≤r.If radius of curvature r is less than 0.05 (mm),, also be difficult to suppress breaking and the generation of breaking of transfer materials 13 of transfer printing layer 29 even change other parameter.The upper limit is ∞.This is owing to exist the cause of the such straight line portion of B13, B15, the B17 of table 3.
In above-mentioned the 1st～the 4th form of implementation, the best of breed of these key elements under the situation that obtains taking into account is that distance H is that 0.4mm, radius of curvature R are 0.15mm, radius of curvature R
2It for 0.15mm and demoulding slope A 15 ° combination.
Below, the manufacture method of the injection-molded article 15a～15e related separately to above-mentioned the 1st～the 4th form of implementation of the present invention (representing it with " 15 " as representative) describes.
Be used to the to be shaped injection mold of injection-molded article 15, having, but have die cavity 1A dynamic model 1 and, have the fixed die 2 of die cavity 2A, and constitute.In above-mentioned the 1st form of implementation, as Figure 11 and shown in Figure 15, but among at least one side among dynamic model 1 and fixed die 2 or the die cavity 1A of both sides' mould or die cavity 2A or 1A and the 2A, have bend 1a-1,1a-2 that the section configuration at the position of the radius of curvature r minimum that can make above-mentioned injection-molded article is shaped with R＜D and 0.1≤r * R * A/D≤10.Similarly, in above-mentioned the 2nd form of implementation, as Figure 12 and shown in Figure 15, but among at least one side among dynamic model 1 and fixed die 2 or the die cavity 1A of both sides' mould or die cavity 2A or 1A and the 2A, have bend 1b-1,1b-2 that the section configuration at the position of the radius of curvature r minimum that can make above-mentioned injection-molded article is shaped with R 〉=D and 0.2≤r * R/D≤30.And, in above-mentioned the 3rd form of implementation, as Figure 13 and Figure 14 and shown in Figure 15, but among at least one side among dynamic model 1 and fixed die 2 or the die cavity 1A of both sides' mould or die cavity 2A or 1A and the 2A, the section configuration at position with the radius of curvature r minimum that can make above-mentioned injection-molded article is with 0.01≤r * R * R
2Bend 1c-1,1c-2,1d-1,1d-2 that * A/H≤1.0 are shaped.And in above-mentioned the 4th form of implementation, be intended to be shaped and suitably corresponding the 1st～the 3rd area I of the corresponding bend of above-mentioned the 1st～the 3rd form of implementation, the part place of II, III bend with above-mentioned correspondence at it.
Secondly, but between the dynamic model 1 with die cavity 1A and fixed die 2, have the transfer materials 13 (Figure 16) of transfer printing layer 29 on the placement matrix sheet material 21 with die cavity 2A.Transfer materials 13, but be to place with the state that is clipped on the appropriate location by the die cavity 2A of the die cavity 1A of dynamic model 1 and fixed die 2.Both transfer materials 13 a slice a slices of monolithic can be sent into and placed, and also can rectangular transfer materials 13 not cut and only the part of its necessity intermittently be sent into continuously and placed.
Do not cut and the occasion used at rectangular transfer materials 13, make transfer materials 13 consistent with the direction of injection mold as long as adopt feeder to position with detent mechanism.In addition, when transfer materials 13 intermittences are sent into, but it is as long as with dynamic model 1 and fixed die 2 that transfer materials 13 is fixing after the position of transfer materials 13 is detected with sensor, just transfer materials 13 can be fixed on the identical position all the time, help preventing the skew of transfer materials 13 occurrence positions.
Secondly, carry out matched moulds to form shaping spatial portion 33, injection molding resin 30 in formingspace portion 33, forming its section configuration when above-mentioned bend place has the injection-molded article 15 of desirable radius of curvature, the transfer printing layer 29 that makes transfer materials 13 is then on the surface of injection-molded article 15 and become one with it (Figure 18).
Afterwards, but dynamic model 1 is moved with respect to fixed die 2, injection-molded article 15 is taken out.On the surface of the injection-molded article 15 that takes out, same at the position with desirable radius of curvature of its section configuration with other parts, transfer printing layer 29 also by following layer 24 then on the shaping resin 30 that has solidified and become one with it.Separately injection-molded article 15a, 15b, 15c, 15d, the 15e of the 1st～the 4th form of implementation are shown in Figure 23, Figure 24, Figure 25, Figure 26.
As shaping resin 30, acrylic resin, polystyrene resin, acrylonitrile-styrene resin, polycarbonate resin, acrylic resin, polyvinyl resin, polylactic resin, polyamide, polyurethane resin, mylar or their polymer alloy are arranged.
Object lesson as employed transfer materials 13 its basic stepped constructions in above-mentioned the 1st～the 4th form of implementation of the present invention, have to stack gradually peel ply 22, patterned layer 23, functional layer 25, following layer 24 form on matrix sheet material 21, the sandwich of peel ply 22, patterned layer 23, functional layer 25, following layer 24 becomes transfer printing layer 29 (with reference to Figure 21).Material as matrix sheet material 21 has the resin sheet of being made by acrylic resin or polyester resin etc.
Material as patterned layer 23, though can list acrylic resin, nitrocotton resinoid, polyurethanes resin, chlorinated rubber resinoid, polyvinyl chloride-vinyl acetate copolymerization resinoid, polyamide-based resin, polyester resin and, epoxylite etc., not limited by this.In addition, on patterned layer 23, the metallic diaphragm of aluminium, chromium, copper, nickel, indium, tin or silica etc. can be set also by methods such as vacuum evaporation or plating.In this occasion, metallic diaphragm both can form on whole and also can become pattern to form.The thickness of patterned layer 23 is advisable with 0.5 μ m～50 μ m.This be because, if thickness is thinner than 0.5 μ m, then can't fully manifest its pattern, if be thicker than 50 μ m, then the printing back is difficult for dry.But, with regard to metallic diaphragm, with
Be advisable.This be because, if the thickness of metallic diaphragm is thinner than
Then can't obtain enough metallic luster senses, if be thicker than
Then be easy to generate and break.As the method that patterned layer 23 is provided with or becomes pattern setting on whole, general printing processes such as rotary printing, serigraphy, lithographic printing are arranged, also have metal film forming methods such as obliterating printing, application, various coating process, evaporation, ion plating and sputtering method etc.
As the material of following layer 24, to adopt acrylic resin, nitrocotton resinoid, polyurethanes resin, chlorinated rubber resinoid, polyvinyl chloride-vinyl acetate copolymerization resinoid, polyamide-based resin, polyester resin, epoxylite, polycarbonate resin, olefine kind resin, acrylonitrile-butadiene-styrene resin etc. for well.The thickness of following layer 24 is advisable with 0.5～50 μ m.This be because, if thickness is thinner than 0.5 μ m, then can not get enough then property, if be thicker than 50 μ m, then the printing back is difficult for dry.The formation method of following layer 24 both can be general printing processes such as rotary printing, lithographic printing, serigraphy, also can be any one methods such as application, dipping and double-coated machine.
As the material of peel ply 22, with adopt acrylic resin, acetate esters resin, carbamate resinoid, chlorinated rubber resinoid, polyvinyl chloride-vinyl acetate copolymerization resinoid, polyamide-based resin, polyester resin, epoxylite, polycarbonate resin, olefine kind resin and, (シ ア ノ ア Network リ レ-ト) etc. are for well for cyano-acrylate resin.The thickness of peel ply 22 is advisable with 0.5～50 μ m.This be because, if thickness is thinner than 0.5 μ m, then can not get enough then property, if be thicker than 50 μ m, then the printing back is difficult for dry.
Injection-molded article of the present invention, it is the injection-molded article that transfer printing layer then becomes one with it on its surface, it is characterized in that, the r of above-mentioned injection-molded article is that the section configuration at the position of minimum satisfies the condition of the condition of R＜D and 0.1≤r * R * A/D≤10 or R 〉=D and 0.2≤r * R/D≤30 or 0.01≤r * R * R
2The condition of * A/H≤1.0.If satisfy above-mentioned condition, even if the position of radius of curvature r minimum then, can not cause injection-molded article to be difficult for from injection mold, taking out yet, and, shaping resin can not be pressed in the very sharp bight of angle yet, therefore, has such effect, promptly, not only can prevent that the transfer printing layer generation from breaking and transfer materials breaks (breaking of transfer printing layer or breaking of matrix sheet material), but also can access the good injection-molded article of appearance design of the clear-cut of the periphery or the summit portion in interior week (recess).
In addition, injection-molded article of the present invention is radius of curvature R, radius of curvature R and the radius of curvature R of injection-molded article
2, demoulding slope A, distance D a certain at all identical injection-molded article of all sites.In addition, injection-molded article of the present invention is radius of curvature R, radius of curvature R and the radius of curvature R of injection-molded article
2, demoulding slope A, distance D a certain at all identical injection-molded article of all sites.Therefore, has the effect that workload can be reduced and design and make injection mold expeditiously.
In addition, the manufacture method of injection-molded article of the present invention is, but constitute by dynamic model that contacts with transfer materials at least and fixed die with shaping resin injection port, between them, place the transfer materials that has transfer printing layer on the matrix sheet material, the shaping that behind matched moulds, forms with in the space from shaping resin injection port injection molding resin, when forming injection-molded article, make transfer printing layer then on the surface at injection-molded article and the manufacture method of the injection-molded article that becomes one with it.Therefore, have such effect, that is, but not only can make the injection-molded article demoulding in the recess of dynamic model easily, can not produce and break and injection-molded article that transfer materials can not break but also can access transfer printing layer.
In addition, injection mold of the present invention is an employed injection mold in the above-mentioned injection-molded article manufacture method.Therefore, have such effect, that is, can access transfer printing layer and can not produce and break and transfer materials can not break, the good injection-molded article of appearance design of the clear-cut of periphery or the summit portion in interior week (recess).
In addition, by with any form of implementation appropriate combination among the above-mentioned various forms of implementation, can obtain the effect that they are had separately.
For the present invention, carried out sufficient description with regard to relevant best form of implementation in conjunction with the accompanying drawings, but, obviously can also make various changes and correction for those skilled in the art.This change and correction only otherwise exceed the scope of the present invention that claims propose, promptly are understood to include within the scope of the present invention.
Claims (5)
1. injection-molded article, it is the injection-molded article (15b) that transfer printing layer (29) is then become one with it on the surface of injection-molded article, it is characterized in that,
The section configuration at the position of the radius of curvature r minimum of described injection-molded article is, R 〉=D and 0.2≤r * R/D≤30,
Wherein, described radius of curvature r: the radius of curvature (mm) of the summit portion in the periphery of described injection-molded article or interior week (11b) when overlooking, R: from section see described injection-molded article described periphery or described in the radius of curvature (mm) of described summit portion in week, D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level (10b).
2. injection-molded article as claimed in claim 1 is characterized in that, at least one among the radius of curvature R of described injection-molded article or the distance D is all identical at all positions.
3. injection-molded article as claimed in claim 2 is characterized in that,
Section configuration at the position of radius of curvature r minimum described in the 2nd zone of described injection-molded article (II) is R 〉=D and 0.2≤r * R/D≤30, and is 0.01≤r * R * R in the section configuration at the position of the radius of curvature r minimum of protuberance described in the 3rd zone (III) different with described the 2nd zone or described recess
2* A/H≤1.0,
Wherein, described radius of curvature r in described the 3rd zone, it is the radius of curvature (mm) of the summit portion (11c, 11d) of the described protuberance of described injection-molded article when overlooking or described recess, R in described the 3rd zone, be the radius of curvature (mm) of seeing the described summit portion of the described protuberance of described injection-molded article or described recess from section, the R in described the 3rd zone
2It is the radius of curvature (mm) of seeing the bottom (19a) of the described protuberance of described injection-molded article or described recess from section, H in described the 3rd zone, be to see the height (mm) of the described summit portion of the described protuberance of described injection-molded article or described recess to datum level from section, A in described the 3rd zone is the number of degrees of demoulding slope in end face bight (41c, 41d) of seeing the described protuberance or the described recess of described injection-molded article from section.
4. the manufacture method of an injection-molded article is characterized in that,
At least with transfer materials (13b) but between dynamic model (1b) that contacts and the fixed die (2b), the described transfer materials that has transfer printing layer (29) on the matrix sheet material (21) is set with shaping resin injection port (12b),
But the shaping that forms to described dynamic model and described fixed die matched moulds with in space (33) from described shaping resin injection port injection molding resin (30),
But by described dynamic model or fixed die; can make the bend (1b-1 that the section configuration at position of radius of curvature r minimum of described injection-molded article is shaped with R 〉=D and 0.2≤r * R/D≤30; 1b-2) formation has the injection-molded article (15b) of the described radius of curvature r of described section configuration; simultaneously; make described transfer printing layer then on the surface of described injection-molded article and become one with it; wherein; described radius of curvature r: the radius of curvature (mm) of the summit portion in the periphery of described injection-molded article or interior week (11b) when overlooking; R: from section see described injection-molded article described periphery or described in the radius of curvature (mm) of described summit portion in week, D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level (10b).
5. an injection mold is characterized in that having,
At least with transfer materials (13) but the dynamic model (1) that contacts, and,
Fixed die (2) with shaping resin injection port (12), and,
But a certain side among described dynamic model or the fixed die has at least; can make the bend (1b-1 that the section configuration at position of radius of curvature r minimum of described injection-molded article is shaped with R 〉=D and 0.2≤r * R/D≤30; 1b-2); wherein; described radius of curvature r: the radius of curvature (mm) of the summit portion in the periphery of described injection-molded article or interior week (11b) when overlooking; R: see the described periphery of described injection-molded article or the radius of curvature (mm) of the described summit portion in described interior week from section; D: from section see described injection-molded article described periphery or described in the described summit portion in week to the height (mm) of datum level (10b)
But between described dynamic model and described fixed die, the described transfer materials that has transfer printing layer (29) on the matrix sheet material (21) can be set, but the shaping that forms to described dynamic model and described fixed die matched moulds with in space (33) from described shaping resin injection port injection molding resin (30), when forming injection-molded article (15b), make described transfer printing layer follow on the surface at described injection-molded article and become one with it.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-70552 | 2002-03-14 | ||
| JP2002070552A JP4180287B2 (en) | 2002-03-14 | 2002-03-14 | Injection mold and method of manufacturing injection molded product |
| JP2002-79239 | 2002-03-20 | ||
| JP2002-83016 | 2002-03-25 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA038059932A Division CN1642712A (en) | 2002-03-14 | 2003-03-14 | Injection mold and manufacturing method for injection- molded article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101289008A true CN101289008A (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101087115A Pending CN101289008A (en) | 2002-03-14 | 2003-03-14 | Module for injection forming and production method of injection forming article |
| CNA200810108712XA Pending CN101289009A (en) | 2002-03-14 | 2003-03-14 | Module for injection forming and production method of injection forming article |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200810108712XA Pending CN101289009A (en) | 2002-03-14 | 2003-03-14 | Module for injection forming and production method of injection forming article |
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| JP (1) | JP4180287B2 (en) |
| CN (2) | CN101289008A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182574A (en) * | 2015-05-28 | 2016-12-07 | Lg化学株式会社 | In-mould forming device and method |
| TWI686286B (en) * | 2018-12-26 | 2020-03-01 | 大陸商 業成科技（成都）有限公司 | Method of manufacturing a thermoforming convex mold |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102034605B1 (en) * | 2017-06-27 | 2019-10-21 | 케이비아이동국실업 주식회사 | Method for Manufacturing of IMD product |
| CN107728241A (en) * | 2017-10-27 | 2018-02-23 | 辽宁中蓝电子科技有限公司 | A kind of optical mirror slip |
| JP6764179B1 (en) * | 2020-05-28 | 2020-09-30 | 株式会社Ｔｈｅ ＭＯＴ Ｃｏｍｐａｎｙ | Mold |
-
2002
- 2002-03-14 JP JP2002070552A patent/JP4180287B2/en not_active Expired - Lifetime
-
2003
- 2003-03-14 CN CNA2008101087115A patent/CN101289008A/en active Pending
- 2003-03-14 CN CNA200810108712XA patent/CN101289009A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182574A (en) * | 2015-05-28 | 2016-12-07 | Lg化学株式会社 | In-mould forming device and method |
| CN106182574B (en) * | 2015-05-28 | 2019-04-19 | Lg化学株式会社 | In-mould forming device and method |
| TWI686286B (en) * | 2018-12-26 | 2020-03-01 | 大陸商 業成科技（成都）有限公司 | Method of manufacturing a thermoforming convex mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003266494A (en) | 2003-09-24 |
| JP4180287B2 (en) | 2008-11-12 |
| CN101289009A (en) | 2008-10-22 |
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