| 摘要 |
PURPOSE: An injection mold is provided to reduce manufacturing costs for injection mold by using upper and lower plates and upper and lower parting protection blocks regardless of the change of injection molded articles. CONSTITUTION: An injection mold(100) comprises a lower plate(103), an upper plate(101), a lower core(107), an upper core(105), an ejection unit, and upper and lower parting protection block members(111, 113). The lower core and the upper core are coupled with the top surface of the lower plate and the bottom plate of the upper plate respectively. The upper core forms cavity(108) by being attached with the lower core. The ejection unit separates a molded article from the cavity. The upper and the lower parting protection block members are coupled with the upper and the lower plates respectively and arranged in the edge portion of the upper and the lower cores. The lower parting protection block distributes the contact force of the upper and the lower cores by being engaged with the upper parting protection block.
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