Anti-corrosion automatic wrapping device and method for bend pipe with polyethylene composite tape

An anti-corrosion automatic wrapping device for a bend pipe with a polyethylene composite tape comprising a wrapping machine and a plurality of sets of bend pipe conveying structures, the device further comprising:

• a fixed base fixed on a ground, wherein the fixed base has a vertically arranged limiting shaft, a side wall of the limiting shaft has two outwardly protruding positioning portions, the two positioning portions are arranged at an interval along a vertical direction, the plurality of sets of bend pipe conveying structures are arranged in an annular shape around the limiting shaft, and the wrapping machine is disposed between adjacent two of the bend pipe conveying structures;
• a rotating ring rotatably sleeved on the limiting shaft and disposed between the two positioning portions;
• a sliding block configured to slidably pass through inside of a bend pipe supported by the plurality of sets of bend pipe conveying structures;
• a first arc-shaped pipe coaxially arranged with the limiting shaft and having one end fixedly connected to the sliding block;
• a connecting shaft having one end connected to the first arc-shaped pipe, and the other end fixedly connected to the rotating ring;
• and
• a blocking member disposed on a same side of the sliding block as the first arc-shaped pipe and connected to the sliding block, wherein when the sliding block slides into the bend pipe, the blocking member is configured to abut against an end face of one end of the bend pipe;
• wherein when the bend pipe supported by the plurality of sets of bend pipe conveying structures is conveyed through the wrapping machine, the bend pipe can push the blocking member to move.