| In recent years, the innovations of structure of paper packing container for convenient food mainly concentrate on the folding carton, but not on the paper cup which are all straight-wall paper container with circular cross-section. So, this research focuses mainly on the new folding paper container, it takes full advantage of the folding performance of paper materials, it's in the state of compression as a packing container, however, it can be expanded into a goblet during use. This new variable volume paper container satisfies people to use functional requirement already, and can save shipping space, more easy to be carried out, give a person enjoyment again. Therefore, it is of important realistic significance to study the main structure, the molding parameters, the compressible property and the rebound performance. This subject comes from a utility model patent-a variable volume packing container.First, studying the feasibility of structure design refers to the patented design ideas and the molding type in theory, then provide two series of computer-simulated scenarios and once shaping scenarios with a piece of paper to insure its volume can change. Then, according to the above principles and methods are discussed, to analyze the relations of dimensions such as shapes of cross-section, width of crease, perimeter and side length. And the derivation process of the formulas and calculation method is described in detail. Further, through the test raw materials, shapes of cross-section, structural parameters such as width of crease, number of crease and straight-wall height influencing compressible property were studied, also the upper and lower wall height ratio and the amount of compression influencing rebound property has been developed. Analysis of variance was used to analyze the interaction among the factors by SAS. At last, the relatively rational parameters are chosen according the results.In summary, the structure design, calculations of size parameters, and the research of compressible property and rebound performance of the main structure of this new folding paper container, which to offer theoretical basis for the new variable volume paper container's further development and application. |