Large-scale glass fiber reinforced plastic tank and forming die, manufacturing equipment and manufacturing method thereof

Abstract

The embodiment of the invention discloses a large-scale glass fiber reinforced plastic tank and a forming die, a manufacturing equipment and a manufacturing method thereof. The forming die comprises a main shaft, at least three dynamic templates arranged on the main shaft and around the main shaft, traction mechanisms driving radial back and forth stretching of the dynamic templates relative to the main shaft, and cover templates arranged on the two ends of the main shaft, the dynamic templates are connected to the main shaft by separate dynamic templates, when the dynamic templates are extended to a certain length, the dynamic templates and the cover templates abut and together encircle to form a straight tubular die cavity with two ends sealed, and the outer side wall of the die cavity is provided with a plurality of reinforcing rib grooves. Through the implementation way, the large-scale glass fiber reinforced plastic tank which is provided with covers at the two ends and is prepared from reinforcing ribs and a glass fiber reinforced plastic tank by integrated forming can be conveniently prepared, has good tightness, and is convenient to demould.

Description

technical field [0001] The invention relates to the technical field of FRP molding, in particular to a large-scale FRP tank body, a molding die, manufacturing equipment and a manufacturing method thereof. Background technique [0002] FRP tanks are widely used for their good strength, relatively simple molding process, light weight, and easy transportation and installation. Existing FRP tanks are usually formed by a winding molding process. By winding the glass fiber material soaked with resin on the outer surface of the cylindrical mold, the mold can be removed after the resin is cured and shaped to obtain the glass fiber reinforced plastic tank. [0003] The diameter of existing large-scale FRP tanks is often greater than three meters, and the length is several meters or even tens of meters. The annular reinforcing rib inside the tank is protruding from the inner wall to the inner cavity of the FRP tank, and the existing mold is located inside the formed FRP tank and can...

AI Technical Summary

Problems solved by technology

[0003] The diameter of existing large-scale FRP tanks is often greater than three meters, and the length is several meters or even tens of meters. The annular reinforcing rib inside the tank is protruding from the inner wall to the inner cavity of the FRP tank, and the existing mold is located inside the formed FRP tank and cannot be moved. For the sake of easy demoulding, the existing FRP The tank body is assembled with reinforcing ribs on the inner wall of the FRP tank after the FRP tank is formed. Not only is the molding process relatively complicated, but the connection strength between the reinforcing rib and the FRP tank is also low, which seriously affects the overall strength of the FRP tank.

In addition, for the sake of easy demoulding, the existing glass fiber reinforced plastic tanks are usually open at both ends during the molding process, at least one of the ends is open, so that the cover that seals the opening needs to be separately formed and assembled later, resulting in a process Complicated and poor sealing performance

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