The Study On Technique And Simulation Of Crocheted Fabrics

Crocheted fabrics are widely used as decoration materials because of its goodadornment performance, and it must have a wide market prospect. Actually, most ofthe crocheted fabrics are designed in an old fashioned way by paper in our country,This has made an impact that the fabrics are not flexible enough to fulfil changingmarket demands，as it results in long cycle times and high manufacturing costs. Thispaper introduces the knitting process, forming principle of the fabrics, and thefeature of crocheted fabrics in detail. It also tries to discuss fabric designing,simulation method and CAD for Crocheted fabrics ‘design. This work will have somepositive effect on improving the market competitiveness of enterprises.Firstly, the knitting principle of crocheted fabrics is studied in this article. Asone of the members of the warp knitting machine, crochet machine may be similar tothe Rachel warp knitting machine. And the work principle of Electronic jacquardcrochet machine may like Jacquard warp knitting machine. Then the retaining pinmechanism, which is used to help for specific crocheted fabrics, is introduced.Secondary, the paper presents three structures of crocheted fabrics, pillar stitch,inlay structure and fall plate structure. Then, it explains the prerequisites for setting upthe model, yarn number and model of yarn number. Bezier is chose as fitting method.Al l this are preparation works for carrying out the research in simulation method ofcrocheted fabrics.Then this paper focuses on building simulation model. The loop structure isstudied detail to find out the position and number of the control points. Based on this,the model could be built. However, it is difficult to build model for specialcrocheted fabrics. In order to carry out the model, this paper analyzes the rule of theloop structure and finds a way to build the model. Then, the deformation of loopis analyzed. Especially, the theory of deformation and displacement that cause bytension is emphasized.Finally, this paper tries to develop function module for CAD of crocheted fabrics,and introduce its function, especially its function of interactive design.