CN208100939U - A kind of anti-iridescence mould structure of multi-layer injection molding part - Google Patents
A kind of anti-iridescence mould structure of multi-layer injection molding part Download PDFInfo
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- CN208100939U CN208100939U CN201820129658.6U CN201820129658U CN208100939U CN 208100939 U CN208100939 U CN 208100939U CN 201820129658 U CN201820129658 U CN 201820129658U CN 208100939 U CN208100939 U CN 208100939U
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- injection molding
- iridescence
- cast gate
- molding part
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Abstract
The utility model relates to a kind of injection molds, specifically, are a kind of anti-iridescence mould structures of multi-layer injection molding part, belong to multi-layer injection molding technical field.A kind of anti-iridescence mould structure of multi-layer injection molding part, it is characterised in that:The anti-iridescence mold of multi-layer injection molding part has the cast gate equal with the number of plies, and the position of N layers of cast gate is located at the position of the N-1 layers of injection molding above 2-10mm in layering face；N≥2.The gate location of the utility model change transparent material of quadratic form, make cast gate away from bi-color branch level at least 2mm, the phenomenon that avoiding the transparent material of the high shear near cast gate from flinging opaque material, weaken the opaque material refuse having been cured, to reach the defect for solving transparent region iridescence.
Description
Technical field
The utility model relates to a kind of injection molds, are a kind of anti-iridescence mould structures of multi-layer injection molding part specifically, belong to
In multi-layer injection molding technical field.
Background technique
In the prior art, it for the multi-layer injection molding part comprising transparent material and opaque material, needs to carry out at least two
Secondary injection molding, such as quadratic form injection molding：From stowing operation in, temperature resistant transparent material is by the opaque material weight of the dispensable mould having been cured
It is new melt and it is dizzy reach in transparent material, thus the phenomenon that forming double-colored mixing in quadratic form transparent region, in injection moulding process, pour
Mouth region domain shear rate is maximum, and Shear heating is most, and most iridescence are fan-shaped centered on quadratic form cast gate to scatter, this is to double
The appearance of color and multi-color injection molded part causes certain adverse effect.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-iridescence mould structure of multi-layer injection molding part, by the small size of mold
Change, substantially mitigate temperature resistant transparent material by the opaque material refuse of the dispensable mould having been cured and it is dizzy reach in transparent material when shape
At double-colored mixing the problem of.
The utility model takes following technical scheme：
A kind of anti-iridescence mould structure of multi-layer injection molding part, the anti-iridescence mold of multi-layer injection molding part have equal with the number of plies pour
Mouthful, the position of N layers of cast gate is located at the position of the N-1 layers of injection molding above 2-10mm in layering face；N≥2.
Further, the cast gate is located at the side of mold, the straight line where the channel of N layers of cast gate and N-1 layers of injection molding point
Level is parallel.
Further, the number of plies of the multi-layer injection molding part is layer 2-3.
Further, the remelting region 4 between N layers and N-1 layers of injection molding material is presented from nearly cast gate toward the direction far from cast gate
Increase the trend reduced again.
The beneficial effects of the utility model are：
1) substantially mitigate temperature resistant transparent material for the opaque material refuse of the dispensable mould having been cured and dizzy reach transparent material
The problem of double-colored mixing formed when middle；
2) small size change, easy to implement, significant effect only have been carried out to mold；
3) ingenious in design, the prospect with wide popularization and application.
Detailed description of the invention
Fig. 1 is the mechanism schematic diagram of multi-layer injection molding iridescence defect.
Schematic diagram before Fig. 2 is improvement, when multi-layer injection molding part in the prior art is molded.
Fig. 3 is the schematic diagram of the anti-iridescence mould structure of the multi-layer injection molding part of the utility model after improvement.
In figure, the secondary of two layers of moulding of 1. prior arts pours cast gate, the weight of 2. two layers of moulding in the prior art
Melting zone domain, the secondary of 3. secondary injection plastics pour cast gate, 4. remelting regions.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
Comparative example：
Referring to Fig. 1 and Fig. 2, when carrying out second layer injection molding, the secondary cast gate 1 that pours is provided in close to layer two layers of moulding
The position in the layering face of injection molding, in this way, gate area shear rate is maximum, and Shear heating is most, iridescence equal two in injection moulding process
Fan-shaped centered on secondary type cast gate to scatter, remelting region 2 is bigger.
Embodiment one：
Referring to Fig. 3, a kind of anti-iridescence mould structure of multi-layer injection molding part, the anti-iridescence mold of multi-layer injection molding part has and number of plies phase
Deng cast gate, the position of N layers of cast gate be located at N-1 layers injection molding the above 2-10mm in layering face positions；N≥2.
In this embodiment, referring to Fig. 3, the cast gate is located at the side of mold, the straight line where the channel of N layers of cast gate with
N-1 layers of injection molding layering face are parallel.
In this embodiment, the number of plies of the multi-layer injection molding part is layer 2-3.
In this embodiment, with continued reference to Fig. 3, remelting region 4 between N layers and N-1 layers of injection molding material, from nearly cast gate toward remote
The trend for increasing and reducing again is presented in direction from cast gate.
The present embodiment changes the gate location of the transparent material of quadratic form, makes cast gate away from bi-color branch level at least 2mm, avoid pouring
The phenomenon that transparent material of high shear near mouthful flings opaque material, weakens the opaque material refuse having been cured, thus
Reach the defect for solving transparent region iridescence.
It is the preferred embodiment of the utility model above, those of ordinary skill in the art can also carry out respectively on this basis
Kind of transformation improves, and under the premise of not departing from the utility model total design, these transformation or improves this reality all should belong to
Within the scope of novel be claimed.
Claims (4)
1. a kind of anti-iridescence mould structure of multi-layer injection molding part, it is characterised in that:
The anti-iridescence mold of multi-layer injection molding part has the cast gate equal with the number of plies, and the position of N layers of cast gate is located at N-1 layers of injection molding layering face
The position of the above 2-10mm；N≥2.
2. the anti-iridescence mould structure of multi-layer injection molding part as described in claim 1, it is characterised in that:The cast gate is located at mold
Side, the straight line where the channel of N layers of cast gate are parallel with N-1 layers of injection molding layering face.
3. the anti-iridescence mould structure of multi-layer injection molding part as described in claim 1, it is characterised in that:The layer of the multi-layer injection molding part
Number is layer 2-3.
4. the anti-iridescence mould structure of multi-layer injection molding part as described in claim 1, it is characterised in that:N layers with N-1 layers of injection molding material it
Between remelting region (4), presented from nearly cast gate toward the direction far from cast gate and increase the trend that reduces again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129658.6U CN208100939U (en) | 2018-08-23 | 2018-08-23 | A kind of anti-iridescence mould structure of multi-layer injection molding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129658.6U CN208100939U (en) | 2018-08-23 | 2018-08-23 | A kind of anti-iridescence mould structure of multi-layer injection molding part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208100939U true CN208100939U (en) | 2018-11-16 |
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ID=64128723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820129658.6U Active CN208100939U (en) | 2018-08-23 | 2018-08-23 | A kind of anti-iridescence mould structure of multi-layer injection molding part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208100939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667050A (en) * | 2019-11-15 | 2020-01-10 | 华域视觉科技(上海)有限公司 | Sprue structure for injection molding of double-color car lamp |
| WO2022095285A1 (en) * | 2020-11-09 | 2022-05-12 | 宁波圣捷喷雾泵有限公司 | Multicolor injection molded piece and injection molding process therefor |
-
2018
- 2018-08-23 CN CN201820129658.6U patent/CN208100939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667050A (en) * | 2019-11-15 | 2020-01-10 | 华域视觉科技(上海)有限公司 | Sprue structure for injection molding of double-color car lamp |
| WO2022095285A1 (en) * | 2020-11-09 | 2022-05-12 | 宁波圣捷喷雾泵有限公司 | Multicolor injection molded piece and injection molding process therefor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |
|
| CP01 | Change in the name or title of a patent holder |