The joint part of the head spindle and the head body adopts the conical surface meshing and positioning to maintain the rotation accuracy of the head. The structure of the machine head is centrifugal block type, which is composed of the machine head body, the block, the block key, the pressure spring, the front cover and the back cover of the machine head. The material of the entire machine head is made of aluminum alloy and stainless steel. When the machine head rotates at high speed, under the action of centrifugal force, the expansion block will support the winding drum, and the fiber is wound on the surface of the winding drum. When the winding machine head stops rotating, the centrifugal force disappears and the rising block falls freely to unload the drum.