Optimized Injection Mold Plate, And Injection Mold Comprising Same
Patent No. EP4135962 (titled "Optimized Injection Mold Plate, And Injection Mold Comprising Same") was filed by MHT Mold & Hotrunner Technology on Apr 13, 2021. The application was issued on Apr 9, 2025.
Patent Summary
An injection molding machine for PET preforms comprises a core plate and a cavity plate that move between open and closed positions, forming molding spaces. A removal plate transfers preforms from the core plate, and an after-treatment plate utilizes removal pins for final extraction. Handling elements (cores, cavities, or pins) are arranged in columns and rows where the row distance $r$ exceeds the column distance $s$. Specifically, $s$ is between 44–46 mm. The tool plate's working surface $F$ and number of elements $t$ satisfy $t/F > 190\text{ m}^{-2}$. The machine applies a closing force $< 30\text{ kN}$ per preform. Four frame members define a rectangle; clearances between adjacent members are $< 1000\text{ mm}$ ($\ge 136$ elements), $< 800\text{ mm}$ ($\ge 120$ elements), or $< 750\text{ mm}$ ($\ge 88$ elements).
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Date
Description
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EP4135962
- Application Number
- EP21719562A
- Filing Date
- Apr 13, 2021
- Status
- Granted And Under Opposition
- Mar 7, 2025
- Publication Date
- Apr 9, 2025
- External Links
- Slate, Register , Google Patents