(A) ;METHOD FOR OBTAINING SURFACE ANTIGEN FOR RECOMBINATION OF HYPERIMMUNIZED HEPATITIS B VIRUS AND VACCINE COMPOSITION FOR HEPATITIS B VIRUS

摘要

PURPOSE:To remove the danger in misrolling and to increase the yield with the automatic and quick absorption of an excess loop by correcting in the looper reducing direction the reference speed of the motor of a main engine according to the integral value of the deviation obtd. by an operation. CONSTITUTION:The looper angle deviation DELTAtheta being the difference in a looper angle target value thetaref and looper angle detection value theta is inputted into a control device 20. This looper angle deviation DELTAtheta is integrated only in the case of the looper angle deviation DELTAtheta being negative for the ON period of the switch 21 turning ON for a fixed time from the ascending timing of the looper when the material to be rolled is bitten into the rolling stand 2 at the downstream side. The output DELTANsref for reducing in steps the speed of a rolling stand 1 according to the integral value thereof is algebraically added to the correction quantity DELTANref of the main engine motor speed being the output of a looper height control device 12 and the input of a speed control device 9 is corrected with the speed reduction. The speed of the rolling stand 1 is thus corrected and the loop is quickly absorbed.