Finite Element Analysis of Cloth Behavior and Needle Holding Part Implemented in Arimatsu Narumi Tie-dye Robot

Abstract

To tie up the clothes, the robot push the needle for the cloth into the resin cap. Using the resin cap, the tie dyeing operation based on the robot is simplified. To fix the needle, the needle of the robot is sandwiched between two aluminum metal plates. The needle is fixed by the frictional force on both the metal plates. Therefore, the needles often fall off from the plates of the robot. In this study, in order to prevent from falling off, the contact stress distribution among the plate, the needle and the screw are analyzed by the finite element model. The strength of tightening is evaluated through the stress distribution based on the FEM results.