Bobbin winder

A bobbin winder can wind interlayer windings and insert interlayer paper to an interlayer without deviation of a front position of the interlayer paper or without wrinkle of the interlayer paper. The bobbin winder is provided with a guide device (310) which comprises a guide plate (312) placing the interlayer paper (L) in a top so as to guide; a pair of end face guide members (313) installed on the guide plate and limiting the position of two ends in the width direction of the interlayer paper on the guide plate; a pair of pressing rollers (315) respectively supporting the front end parts of the pair of end face guide members; under the state of moving the guide device (310) to a position of a bobbin frame (100), the interlayer paper is supplied to the bobbin frame by the guide device (310), the guide device (310) is exerted force by a cylinder (327); under the state of pressing the interlayer paper to the bobbin frame side; the bobbin is rotated and the interlayer paper L is wound on the bobbin frame when th