The Second Development Carton Design System Based On AutoCAD

As economic and technological development, increasing people's living standards, packaging cartons have more and more variety and style. The requirements of decoration, structure and quality are also increasing. Relying on the traditional manual design methods could not meet the needs of community and market, and is also unable to adapt to the pace of the times. How to combine the national standard to the carton packaging design is related to the carton production and the packed goods compete with other countries for world market. So it is particularly urgent and important.AutoCAD is one of wide used softwares in packaging industry, but it is not professional packaging design software. In order to more easily applied to packaging design, AutoCAD is often secondary developed. The AutoCAD software, VBA development environment, China's Corrugated Box Standard and the status of China's corrugated box were analyzed in this study. Features of the AutoCAD software used in corrugated packaging design were also summarized. Moreover, AutoCAD ActiveX technology was used for the secondary development of corrugated box design system.The content of design are as follows:1. The carton design features were studied and practice experience was used for reference, conversion formula between the corrugated box size was concluded: inner dimension; manufacturing size = inner dimension + the thickness of paper + constant; outer dimension= manufacturing size + thickness of the paper + Constant, "size optional module" and "correction coefficients module" were designed.2. In accordance with various box features in national standards, identifying common features on size, the key parameters to control carton shape could be selected. Three size parameters: length (L), width (W), high (H) were selected as the constrained parameters for parameters design to design "parameter input module". And according to types of carton box in national standards, "cartons choice module" was designed. 3. Different corrugating paperboard has different thickness, which is very important to the dimension of carton design, so, according to this, I designed a "material option module".4. In practical production, we always need to use engineering templet when protracting AutoCAD graphics, so I designed an "engineering templet module" to save the time that takes user to protract engineering templet, and improve efficiency.5. In AutoCAD visual development environment of VBA was started, the corresponding project documents were established, and various modules, form, control, definition of the object attributes were added, and the procedure codes corresponding to objects were written to complete the whole design project.Compared with other packaging design software, the advantage of my search is that:1. The data of this system is based on national standards of corrugating paperboard and corrugating carton, which impenetrated the whole course of design.2. Using is more simple and convenient, interface is more friendly.3. The system has openness to offer a further exploitation to user and base exploitation to professional designers.4. The system supplies demonstration courseware for section of Packaging Engineering in university, and new thought in packaging engineering application for students.This system data use China's corrugated boxes national standards for reference, to achieve parameters ichnography drawing on corrugated packaging design, it greatly facilitate the mapping work, and play a role on promotion of the China's corrugated box production standardization.