Forming production line of large-diameter hole net reinforced composite pipe

The utility model discloses a forming production line of a large-diameter hole net reinforced composite pipe, which comprises a hole net pipe spiral welding forming machine, a hole net pipe conveying frame, an on-line cutting machine, a butt welding machine, a first traction machine, a composite forming die, an extruder, a cooling device, a second traction machine, a downstream cutting machine and a stacking frame, a core shaft penetrates through the composite forming die, horizontally penetrates through the composite forming die and extends towards the upstream to the upstream of the hole net pipe spiral welding forming machine, and the upstream of the hole net pipe spiral welding forming machine is provided with an upstream fixing seat facilitating fixing of the core shaft. A feeding channel of the composite forming die is communicated with a discharging pipe of the extruder, the core shaft is located in the hole net pipe, and an inner supporting guide structure is arranged on the core shaft; according to t