2 is adjusted by a means 10 for adjusting the position of the driven drum 2 so as to be in agreement substantially with the axis l of a pivot pin 8 and the driven drum 2 is tilted substantially about the entering point p 2 in a diametrical vertical plane including the entering point p 2 by actuating the actuating rod 13 to rotate the link 9 about the pivot pin 8 in a vertical plane thus in accordance with a change in the diameter of the cylindrical knitted fabric n the diameter of the driven drum 2 and the width h of the knitted tape nt the driven drum 2 can be tilted in the state of the entering point p at which the upper circumferential edge nu of the cylindrical knitted fabric n enters the driven drum 2 being held substantially in fixed position as shown in fig5 b in a preferred embodiment as shown in fig1 there are provided two guide rods 31 31 located transversely of the tension roller 3 the two guide rod 31 31 are tilted transversely in cooperation with the tension roller 3 in a transversely vertical plane of the tension roller 3 to increase the area of contact with the tension roller 3 accordingly smoothing of the creases of the circumferential portion.