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Tec-Shine泰兴源科技 Part review
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1.Part name Haima Grill
2.Part No. SA12-50-714
3.Tooling No. 673HM-55
4.Cavity No. 1 * 1
5.Plastic material ABS 757
6.Shrinkage 1.005
7.Steel material Groditz 738H
8.Hardness HRC33-37
9.Weight 743.6 g
10.Size 278X922X150
11.Gate type Hot runner with pin gate(feed on part) & open gate(feed on runner)
12.Runner type Hot runner
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Tec-Shine泰兴源科技
4Mold size: 800X1400X816
After the primary mold layout design, we confirmed size of injection machine on time, to avoid mold size exceed maximum daylight .
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Tec-Shine泰兴源科技
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At the earlier stage, we do moldflow analysis with hot runner with direct edge gate(feed on part) & open gate(feed on runner). If so, it's difficult to removethe edge waste runner, so finnally we suggest using hot runner with pin gate(feed on part) & open gate (feed on runner) solution. Under the final solution, the filling time will be longer.
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Tec-Shine泰兴源科技
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Moldflow analysis
Fill time Weld lines Air traps
Temperature at flow frontSink marks estimate
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Tec-Shine泰兴源科技
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Confirm mold texture type, check again the right draft angle.
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Tec-Shine泰兴源科技
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To short the manufacturing time, core side was divided into two to manufacture.
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Tec-Shine泰兴源科技
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(1)Part with plenty of lifters with thin thickness, and distance between lifters are closed. So in the design process, we extened the lifter head, to shorten lifter length. (2)To balance ejection, we fixed the ejector plate and mold B-side.
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Tec-Shine泰兴源科技
10Clearance: 0.5mm
The whole part is cambered. To avoid problems when mold assembly, we only reverse 35mm seal off position inthe parting line, others we do clearance.
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Tec-Shine泰兴源科技
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As the height difference between the cambered high and low position, considering the potential problem caused by unbalanced injection, so we enhanced the design of pointed positions.
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Tec-Shine泰兴源科技
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As the height difference between the cambered high and low position is 140mm, considering the unbalanced inject, the slots (pointed positions) were directly cut from mold base, do support plates on the four corners.
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Tec-Shine泰兴源科技
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Mold length is 1400mm, far exceed the KO center distance 700mm. Additional, there are 20 lifters, so we use two hydralic to assist ejector, to avoid possible ejection balance problem.
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