Steel skeleton plastic composite pipe melting sealing opening manufacturing method and equipment thereof

The invention discloses a steel skeleton plastic composite pipe melting sealing opening manufacturing method and equipment thereof, and relates to the technical field of composite pipe melting sealing opening manufacturing. The steel skeleton plastic composite pipe melting sealing opening manufacturing equipment comprises a top seat and two semicircular plates, wherein two mounting boxes are arranged on the two sides of the bottom of the top seat, the two mounting boxes are arranged in parallel, each mounting box is of a hollow cuboid structure, a two-way lead screw is rotationally mounted in each mounting box, the two sides of each two-way lead screw are symmetrically sleeved with ball nuts in a threaded mode, connecting blocks are fixed to the bottoms of the ball nuts, and adjusting plates are fixed to the bottoms of the connecting blocks; and the two semicircular plates are fixed to the inner sides of the corresponding adjusting plates through connecting bases, semicircular air bags are fixed to the inner