The utility model discloses a color change auxiliary mechanism for a die head of a hollow blow molding machine, characterized in that the color change auxiliary mechanism comprises a flow hole opened at the dead corner of the material cavity of the die head, and an extraction pipe welded at the flow hole. The color change auxiliary mechanism of the utility model utilizes the fluidity of raw materials, and a flow hole with a diameter of no more than 5 mm is drilled at the dead corner on the inner wall of the die head, so that the raw materials in the dead corner can be extracted. The die head equipped with the color change auxiliary mechanism can greatly increase the output, save the loss of raw materials and energy, shorten the color change time from 1–5 hours to 15 minutes, and greatly improve the working efficiency.
Country Code: CN
Application Number: CN201920897957.9
