Corrugated boxes and transport packaging (below)

3.2 Design Diagram Corrugated carton as an important packaging container, its design mainly includes functional design, structural design and decoration design. The functional design involves the ease of use and storage handling efficiency of the carton. It includes box type selection, product arrangement, moulding, sealing and opening. The structural design includes factors related to packaging strength and protection characteristics, such as selecting the box type, assembly and combination structure, sealing and connection form, attachments, gaskets and the like that are conducive to improving the strength. The decorating design mainly designs the appearance characteristics of the carton, the logo of the transport package, and the printability. Fig. 1 is the flow chart of corrugated box design, excluding functional design and decoration design, where P and P' are theoretical and measured values ​​of compressive strength, Ps is stacking strength, and K is safety factor.
4, corrugated box structure optimization design 4.1 Design steps (1) calculate the carton structure size;
(2) choose the best box type;
(3) Calculate the compressive strength and optimize the ingredients program for corrugated board;
(4) box blank design;
(5) Output box billet and cardboard ingredients program.
Figure 1 structural design diagram of corrugated box (omitted)
4.2 Corrugated carton structure CAD
The CAD of corrugated box structure mainly includes the following aspects: calculating the compressive strength of the carton, checking the stacking strength of the carton, structural design of the carton box blank, outputting the billet diagram of the box and the paperboard, and the flow chart is shown in Fig.2. There are two databases and a graphic library in the corrugated box structure CAD, namely the paperboard ingredients program database, the 楞-type database and the box-type database, respectively for the corresponding function module calls.
The paperboard ingredients program database has 24 kinds of corrugated board combination scheme. In each scheme, the corrugated noodles and the paper are the same. The database mainly records the information including grammage weight and ring crush strength of corrugated base paper, organizes the data in a structure, stores it in the form of a library file, and performs operations such as data input, addition, modification, reading, and display through sub-functions.
楞-type database mainly records the relationship between various 楞-type combination methods and their thicknesses. It also organizes data in structures, stores them in library files, and implements data input, addition, modification, reading, and display operations through sub-functions. .
The box-type graphic library records the ISO standard carton structure of 14 types of 02 types, including 0200, 0201, 0203, 0204, 0205, 0206, 0210, 0261, 0212, 0215, 0216, 0217, 0218, 0225, etc. Meet the selection of transportation packaging for small electromechanical products. Through the sub-functions to achieve the carton graphics library data input, add, modify, select, display and zoom and other operations.
Fig. 2 CAD flow chart of corrugated box structure (omitted)
5. Conclusions Corrugated carton boxes are widely used in the packaging of goods, and they have an absolute advantage in sales packaging and transportation packaging. They are the best transportation packaging containers for wooden boxes. The optimization design of corrugated paper box transportation and packaging system is a multi-objective function and multi-variable optimization problem. The optimization of the objective function is to maximize the utilization of storage space, the corrugated box strength is the constraint condition, and the structure of corrugated paper box, the optimization of the charging scheme and loading mode are More comprehensive carton optimization design, better corrugated boxes of product security protection, convenient storage and transportation functions.