Method for preventing gate washout in in-mould decoration process
OwnerYuh-Jou Lee, Chin-Yung Wu +2inventors
InventorsYuh-Jou Lee, Chin-Yung Wu, Yu-Jen Chen, Chieh-Peng Chen
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Abstract
A method for preventing gate washout in process of plastic injection molding includes a step 1 of preparing a film connected to a concavity surface in a first mold and patterns printed on a top surface of the film; a step 2 of inserting a block slidably received in a passage in a second mold and located beside a pouring gate between the first mold and the second mold; a step 3 of injecting plastic material in the concavity via the pouring gate; a step 4 of moving the block toward the first mold before the plastic material in the concavity is solidified; and a step 5 of removing the second mold from the first mold.
Claims1
A method for preventing gate washout in process of plastic injection molding, comprising:
- step 1:
- preparing a film, a first surface of said film being a plain surface which is connected to a concavity surface in a first mold, a second surface of said film having patterns thereon;
- step 2:
- inserting a block slidably received in a passage in a second mold and said passage located beside a pouring gape between said first mold and said second mold and communicating with said concavity;
- step 3:
- injecting plastic material in said concavity via said pouring gate;
- step 4:
- moving said block toward said first mold before said plastic material in said concavity is solidified, and
- step 5:
- removing said second mold from said first mold.
Dependencies are inferred from the claim text.