Canteen box and its forming method

Abstract

The folded lunch box has tabs as the base that comprises bottom plate zone, No.1 and No.2 plate opposite zones at the four edges of the bottom plate, diagonal plate with inclined folding, folding lines between each bottom plate zone and side plate zone, blocking plates on the side plate zone opposite to two phases, No.2 side plate zone inward folding along with the diagonal plate along the foldingline, coating adhesion to those overlapping areas with No.1 side plate zone, so does the No.1 side plate zone to overlap above the No.2 side plate zone, with partial diagonal plate adhering to the No.2 side plate zone, so as to block the No.2 side plate zone inside the step formed with No.1 side plate zone surface, and generating support for the No.2 side plate zone concave inward toward the lunch box.

Description

technical field [0001] The present invention relates to a bento box and its forming method, aiming to provide a bento box which is integrally folded and formed by sheet-like substrates such as cardboard. Background technique [0002] Under the regulation of food safety and sanitation and related environmental laws and regulations, general restaurants gradually switch to bento boxes made of non-plastic materials for consumers to take away food. Similar non-plastic bento boxes are mostly made of such as figure 1 and figure 2 The shown base material is integrally folded and formed. Most of the base material 10 is made of cardboard and has a square bottom plate section 11, side plate sections 12 arranged on the four sides of the bottom plate section 11, and the space between each side plate section 12. The basic shape of the diagonal piece 13 with oblique folds 141 is formed, and folding lines 14 are pre-set between each section to facilitate the folding of each section. [0...

AI Technical Summary

Problems solved by technology

[0003] During molding, the side panel sections 12 are erected in the manner that each side panel section 12 is folded in half along the corresponding folding line 14, and the folded diagonal piece 13 is glued to the side panel section 12 next to it. After being pasted and fixed, it forms a bento box structure that can be packaged and used; different from box-shaped packaging containers for other purposes, the bento box must have the function of preventing vegetable juice from leaking, so in the process of folding and forming the base material, each pair The corner piece must be folded in half first and then glued to the side panel section next to it. Because the thickness increases after being folded in half, it is necessary to bend the corner piece with greater force to fit the side panel section. State, so it is easy to cause the side panel section where the diagonal piece is attached to sink into the lunch box, which affects the structural integrity of the lunch box, and even squeezes the food inside the lunch box

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