Extraction method of camphor tree seed kernel oil safe to eat

An extraction method of camphor tree seed kernel oil safe to eat comprises the steps: firstly extruding camphor tree seed skin and flesh through a tooth stick, separating skin, flesh and kernels, removing skin, flesh and camphor tree essential oil on the surfaces of kernels by utilizing friction of a hair stick and washing of circulating water, and drying; grading the camphor tree seed kernels by adopting a multi-stage vibrating screen with a screen mesh with the aperture of 3.5-9 mm and the inter-stage aperture difference of 0.05-0.25 mm; extruding and breaking shells by using double rollers or double millstones with the micro-spacing being 0.05-0.1 mm smaller than the diameter of the camphor tree seed kernels, and then synchronously adopting vibration separation and airflow separation technologies and color and luster identification to separate the shells from the kernels; further removing the camphor tree essential oil attached to the surface of the camphor tree seed kernels by adopting water circulation w