Automatic bottom-sealing type corrugated case

Abstract

Provided is an automatic bottom-sealing type corrugated case. The automatic bottom-sealing type corrugated case mainly comprises a square case body composed of side boards, a bottom board and cover boards. The cover boards are composed of a first cover board and a second cover board. The side boards are composed of a first side board, a third side board, a second side board and a fourth side board, wherein the first side board and the third side board are fixedly connected on one group of opposite edges on the bottom board, and the second side board and the fourth side board are fixedly connected on the other group of opposite edges on the bottom board. Both the first side board and the third side board are provided with two indentation lines, wherein the indentation lines are symmetrically arranged, and 45-degree angles are formed between the indentation lines and bottom edges of the side boards. Two opposite side edges of the first side board and two opposite side edges of the third side board are respectively and fixedly connected with a first lacing. The second side board and the fourth side board are respectively connected with the first cover board and the second cover board. Two opposite side edges of the first cover board and two opposite side edges of the second cover board are respectively and fixedly connected with a second lacing. The automatic bottom-sealing type corrugated case has the advantages that structure is simple, design is reasonable, the cover boards, the bottom board and the side boards are integrally formed, seals are smooth and flat, appearance is attractive, and stacking and transportation are benefited; and the first lacings, the second lacings and the side boards form a double-side-wall structure, and therefore compressive strength of the case body is improved greatly, and practicality is high.

Description

technical field [0001] The invention relates to an automatic bottom-locking corrugated box, which belongs to the technical field of packaging. Background technique [0002] Cartons are widely used in daily life and production, especially 0201 corrugated cartons are the most widely used packaging products; in order to improve the compressive strength, moisture-proof and moisture-proof performance, and structural modeling of cartons, people have carried out long-term exploration. And created a series of functional cartons; the common 0201 corrugated cartons on the market, the cover and the bottom are composed of four pieces of cardboard, such as figure 1 As shown, due to the influence of the thickness of the cardboard, when the carton is formed, there will be an extra layer of cardboard thickness on the upper and lower surfaces of the carton, and there will be corresponding gaps at the combined position, making the surface uneven; and after multiple uses, The cover plate ...

AI Technical Summary

Problems solved by technology

[0002] Cartons are widely used in daily life and production, especially 0201 corrugated cartons are the most widely used packaging products; in order to improve the compressive strength, moisture-proof and moisture-proof performance, and structural modeling of cartons, people have carried out long-term exploration. And created a series of functional cartons; the common 0201 corrugated cartons on the market, the cover and the bottom are composed of four pieces of cardboard, such as figure 1 As shown, due to the influence of the thickness of the cardboard, when the carton is formed, there will be an extra layer of cardboard thickness on the upper and lower surfaces of the carton, and there will be corresponding gaps at the combined position, making the surface uneven; and after multiple uses, The cover plate and the bottom plate will be bent, warped, etc., and the compressive strength will decrease, which will affect the stacking and transportation of the carton; limit

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