Composite mandrel for fiber pipe weaving

The invention relates to the technical field of fiber pipe manufacturing, in particular to a composite mandrel for fiber pipe weaving. The composite mandrel for fiber pipe weaving comprises a first inserting connection part and a second inserting connection part; the first inserting connection part extends in the front-back direction; the second inserting connection part comprises two or more forming sheet bodies extending in the front-back direction, the front ends of the forming sheet bodies are fixed relatively, the rear ends of the forming sheet bodies are suspended, and the suspended parts of the forming sheet bodies are arranged at intervals and form inserting grooves for allowing the first inserting connection part to be inserted from back to front; the first inserting connection part and the second inserting connection part are inserted in the front-back direction and jointly form a forming periphery surface of which the axis extends in the front-back direction, and the formingperiphery surface is used for fiber winding, weaving and forming; and the inserting matched surfaces of the first inserting connection part and the second inserting connection part are wedge surfaces. The composite mandrel for fiber pipe weaving can be used for solving the problem that in the prior art, a mandrel cannot be easily pulled out from a fiber pipe.