Manufacturing method and production line of continuous fiber composite material spring and spring

The invention discloses a production line of a continuous fiber composite material spring. A layer of thermoplastic film is wound outside a to-be-cured continuous fiber bundle before the to-be-cured continuous fiber bundle is cured and formed by a spring forming and curing mold, and the continuous fiber bundle wound with the thermoplastic film is fed into the spring forming and curing mold after being subjected to circumferential spiral extrusion. In the process of winding the thermoplastic film around the to-be-cured continuous fiber bundle, secondary compression and fastening can be generated on the to-be-cured continuous fiber bundle, gaps and bubbles of all fibers among the to-be-cured continuous fiber bundle are reduced, and the density of the cured continuous fiber spring is improved; and meanwhile, after the fiber bundle wound with the thermoplastic film is spirally extruded in the circumferential direction, the to-be-cured continuous fiber bundle is further extruded, the density of the to-be-cured con