The present invention relates to a method for manufacturing a
gourd-shaped outer liner of a marine
airbag-type leak stopper, characterized by the following steps: dividing the outer liner into n1 equal parts along the axial direction, straightening and unfolding the divided single-piece outer liner figure, projecting it onto a two-dimensional plane, drawing a proportional figure A using CAD
software, and again drawing a proportional figure B after considering the margin, respectively producing drawings A and B,
cutting the anti-
cut material according to drawing B, placing drawing A on the
cut anti-
cut material and ensuring that the two axes coincide and are in the same direction, drawing a profile line along the outer contour of drawing A, determining a sewing margin, and sewing it into shape. Beneficial effect: The present invention designs a three-dimensional model of an outer liner with a specific profile line, determines the number of segments of an
airbag model of a specific shape, divides, unfolds, and projects the surface, determines the profile line of the single-piece segment, cuts the single-piece segment considering the sewing margin, and combines it with a specific sewing technique to achieve simple, rapid, and low-cost production of the
gourd-shaped outer liner while ensuring
structural reliability.