To achieve the versatility in developing a packaging machine, it is imperative to understand the motion and stiffness characteristics of cartons during industrial folding and manipulation. It is desirable to describe carton and its folding procedure in a way that is intelligible by a programmable machine. This raises much interest in the study of carton folding and carton motion for packaging industry. This paper focuses on the stiffness characteristics of carton creases and panels, investigates the mechanics of creases and panels during carton folding and manipulation and characterizes the motion-moment of carton creases during folding. Experiments are carried out to investigate the characteristics of carton creases and panels.
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