Reason: This IML robot product, after the sheet is screen printed, is put into the mold for injection molding. Since the unfolded area of the sheet is inconsistent with the area of the front film core, the whitening phenomenon is caused by poor edging.
Analysis: The projected area of the sheet is inconsistent with the projected area of the mold;
1. Injection molding machine features
Grade: Haitian 50T
Clamping force: 50t Plasticizing ability: 42g
2. Mold features
In-mold number: 1x2 Inlet method: point gate Top-out mode: ejector pin-out Mold temperature: 70°C (constant temperature machine)
3. Product signs
Material: PMMA IRK 304 Color: Transparent Product weight (single piece): 2.4g Water mouth weight: 8.2g
4. Analysis of adverse causes
a. The projected area of the sheet is inconsistent with the projected area of the mold.
b. Deviation when hot pressing the slice material.
c. When placing the sheet, the method is not standard deviation.
5. Countermeasures
a. Increase the projected area of the sheet.
b. Adjust the hot press die cutting die.
c. Add positioning fixtures for stereotypes.
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