LAMINATING DEVICE

A layering device 100 layers a plurality of sheet materials W on a layering stage 30, and comprises: a plurality of layering heads 102 each having a retaining surface 110 with a curved surface shape for retaining a sheet material W; a drum part 104 in which the plurality of layering heads 102 are arranged in the circumferential direction, the layering heads 102 are retained in a state in which the retaining surface 110 can swing, and by rotation, the drum part 104 causes each layering head 102 to advance to a layering position facing a layering surface 30a with a flat surface shape of the layering stage 30; and a rolling mechanism 106 for causing the retaining surface 110 to roll on the layering surface 30a so that a sheet material W delivery point formed between the retaining surface 110 and the layering surface 30a moves from the rear end to the front end of the sheet material W in the rotation direction D1 of the drum part 104 in a state in which the layering heads 102 are moving due to the rotation of the drum part 104.