| 摘要 |
PURPOSE: To make operation control so that a desired skew angle is secured for a specified conveying distance material conveyed in skew. CONSTITUTION: A speed reference setting device 5 generates a speed reference Vo, while an angle reference speed pattern generator 6 generates a reference speed pattern Vθin which deceleration from Vo is made for a certain period which is followed by an acceleration for returning to Vo. Vθis multiplied with the factor (1=k61 >k51 >k41 >k31 >k21 >k11 =0) of a proportion correction setting device 7, and subtraction is made from Vo by an adder 10, and the operation control is performed while the output therefrom is used as the speed pattern of each conveyor 2-1 thru 2-6. A reference speed pattern is derived, in which the area of the reference speed pattern Vθbecomes the distance difference S61 for obtaining the skew angleθfor the conveying distance So.
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