This utility model discloses a bottom forming block structure of an injection blow molding machine, which comprises a lower template. An inverted T-shaped chute is formed on the right side of the top of the lower template, with an inverted T-shaped slider movably mounted inside the inverted T-shaped chute and capable of sliding left and right along the chute. A vertical pipe is fixedly mounted on the top of the inverted T-shaped slider, and an annular plate is mounted on the middle part of the outer circumference of the vertical pipe via a bearing. Bottom forming blocks with different outer end shapes are fixedly mounted on the front, rear, left and right sides of the annular plate respectively. A fixing device is arranged between the annular plate and the vertical pipe, and a bearing-mounted inner pipe is mounted inside the vertical pipe via a bearing, capable of rotating left and right inside the vertical pipe. A guide rod is movably mounted inside the inner pipe, capable of moving up and down along the inner pipe. The utility model has a simple structure and is equipped with multiple bottom forming blocks, enabling the production of finished products with different bottom shapes and convenient conversion and adjustment of the bottom forming blocks. Meanwhile, the position of the bottom forming blocks can be adjusted according to the depression degree of the finished product bottom to produce finished products with different bottom depression degrees. It meets actual production needs and is suitable for popularization.

Country Code: CN

Application Number: CN201821598983.3