Eco-friendly underwater buoy and manufacturing method therefor

An eco-friendly underwater buoy comprising:

• a liner body having an inner hollow portion;
• a winding member which is melted and welded on an outer surface of the liner body through a winding method and absorbs an external impact;
• and
• a buoy coupler which is formed to be embedded in each of both end portions of the liner body and connects other adjacent underwater buoys to each other,
• wherein the buoy coupler is embedded in each of the both end portions of the liner body simultaneously when the liner body is molded and includes:
• a bushing member which includes a screw rod protruding outward in a rod shape and having a fixing hole formed in one side of an end portion thereof and a circumferential plate with a certain diameter integrally formed under the screw rod;
• and
• a fixing wire which is insertion-coupled to the fixing hole of the bushing member to serve as a hook.

A method of manufacturing an eco-friendly underwater buoy, the method comprising:

• a first process of molding and producing a liner body having a certain shape through a liner blower machine and concurrently embedding and molding a bushing member in each of both end portions of the liner body;
• a second process of, after the first process, performing a liner flaming process of heat-treating an outer surface of the liner body with plasma;
• a third process of, after the second process, coupling a shaft to the bushing member formed in the liner body and winding a glass fiber wire, in which a curing agent and a resin are mixed, on the outer surface of the liner body in a set pattern through a filament winding method to form a composite buoy having a form of an underwater buoy;
• a fourth process of, after the third process, drying the composite buoy inside a drying furnace by repeating transferring and rolling to then cool the composite buoy at room temperature for a certain time and separating the shaft from the composite buoy to then perform various inspections including a pressure-resistance inspection;
• and
• a fifth process of, after the fourth process, connecting a set buoy coupler to each of both sides of the composite buoy passing the inspection to complete an underwater buoy,
• wherein the first process includes:
• a liner molding process of molding and producing the liner body having the certain shape through the liner blower machine and concurrently embedding and molding the bushing member in each of the both end portions of the liner body;
• a scrap removing operation of, when the liner body is taken out to the outside in the liner molding operation, transferring the taken-out liner body to a set place through a conveyor to then remove marks or scraps on the outer surface of the liner body;
• and
• a liner aging and drying operation of, after the scrap removing operation, performing an operation of drying and aging the liner body, from which the scraps are removed, at a set temperature for a set time through the conveyor to write a dimension.