Abstract: A rolled food dough having a good shape is stably produced. The rolled food dough is arranged on a conveyor in an orderly manner. A roll-forming device and method having high production capacity are provided. The downstream end portion PL of the food dough piece P is deflected by a middle-speed conveyor 1 and a high-speed conveyor 3 facing each other in an up-down direction, folded and adhesively pressed between a following low-speed conveyor 2 and the high-speed conveyor 3 to form a rolling core PA, and rolled due to a speed difference between the facing conveyors.

Abstract: A non-contact conveyance device includes a conveyance head in which a flat facing surface opposing a conveyed object is formed, a gas supply port connected to a supply source of compressed air is provided in the conveyance head, each of ejection ports of a plurality of ejection paths that communicate with the supply port and are formed in the conveyance head is provided at a position separated by an opening distance from a holding center point of the facing surface, an inclination angle of the ejection path with respect to the facing surface is set to an acute angle, and the compressed gas ejected from each of the ejection ports flows along the facing surface and holds the conveyed object without causing the convey object to contact with the facing surface.

Abstract: A rolled food dough having a good shape is stably produced. The rolled food dough is arranged on a conveyor in an orderly manner. A roll-forming device and method having high production capacity are provided. The downstream end portion PL of the food dough piece P is deflected by a middle-speed conveyor 1 and a high-speed conveyor 3 facing each other in an up-down direction, folded and adhesively pressed between a following low-speed conveyor 2 and the high-speed conveyor 3 to form a rolling core PA, and rolled due to a speed difference between the facing conveyors.