工業用ミシンの動力学

概要

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This paper deals with a method of estimating the force by dynamics on the feed mechanism of industrial sewing machine. As a result, the theoretical values obtained by solving the simultaneous linear motion equations with 24 unknowns agree with the experimental values. Especially, as for the force Fι produced in the feed forked connection lever, the followings are made clear. (1) The peak values of left and right component are produced at a nearly neutral position of the lever equivalent length ι. (2) The fluctuation of Fι is accompanied with the higher harmonic of about 500 Hz by natural vibration of the transfer system in vertical direction to the moving plane during compression of the axial force Fι. In addition, as for the torque produced in the feed regulator, the followings are made clear. (3) During forward feed, this torque is the sum of the torques T_s due to spring and T_γ due to inertia force. Therefore the set condition of the feed regulator is stable. (4) During backward feed, this torque is the difference. Therefore the feed reverse lever should be kept to be stable by the force exceeding the torque difference.
公益社団法人精密工学会の論文
1985-02-05