Folding method of convex-bottom square box

Abstract

The invention discloses a folding method of a convex-bottom square box and relates to a manufacturing method of paper household utensils. The folding method comprising the following steps of: getting a piece of rectangular paper and drawing folding lines including a transverse backward folding line, a transverse forward folding line and the like on the rectangular paper; upwards folding and adhering the part below the transverse forward folding line according to the transverse forward folding line, folding the folded rectangular paper according to a longitudinal backward folding line, and mutually splicing and superposing first rectangles at the left end and the right end of the folded rectangular paper to form an all-side enclosed cube; folding the first rectangular part according to a diagonal forward folding line, an upper longitudinal backward folding line and the transverse backward folding line, wherein an upper square concave shape is formed by the upper parts of the four first rectangles, a low square convex shape is formed by the lower parts of the four first rectangles; pushing the upper square concave shape towards the lower side, so that the top part of the lower square convex shape is sunken, and the lower square convex shape is changed into a lower square concave shape which is adhered with the upper square concave shape; reversely folding a right-angled triangle according to an upper backward folding line, and folding the right-angled triangle to a lower sandwich layer of the upper longitudinal backward folding line to finish the folding of the convex-bottom square box. The inner part of the box bottom is convex, and novel in form; the box bottom structure is unique, strong and firm; and the box body can be high and low and strong in selectivity.

Description

technical field [0001] The invention relates to a method for making a vessel, in particular to a method for making a paper vessel. Background technique [0002] At present, most of the known square cartons are flat-bottomed, and there are few changes; some are made outside the box and cannot be fixed, so they should only be made inside the box, and the sides of the box are too high and cannot be operated. Contents of the invention [0003] In order to overcome the disadvantages that most of the existing square cartons are flat-bottomed and rarely changed; some of them cannot be fixed outside the box, but should be made inside the box, and the sides of the box are too high and cannot be operated. The folding method of the bottom square box. [0004] The technical solution adopted by the present invention to solve the technical problem is: take a rectangular paper, make two folding lines equal in length and parallel to the transverse side length of the rectangular paper, an...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages that most of the existing square cartons are flat-bottomed and rarely changed; some of them cannot be fixed outside the box, but should be made inside the box, and the sides of the box are too high and cannot be operated. The folding method of the bottom square box

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