Spandex precursor supporting device

The utility model discloses a spandex precursor supporting device, which relates to the technical field of spandex processing, and comprises a mounting rack, the top of the mounting rack is provided with a lead screw, the two sides of the top of the mounting rack are respectively provided with a movable bearing rack and a fixed mounting rack, the side surface of the movable bearing rack is provided with a limiting assembly for limiting spandex precursors, and the fixed mounting rack is provided with a fixed mounting rack. A fixing assembly used for fixing spandex protofilaments is arranged on the side face of the fixed installation frame, and a spandex protofilament roller is arranged on the side face of the fixed installation frame. According to the spandex precursor supporting device, the spandex precursor roller is limited through the arranged limiting assembly, the phenomenon that when the spandex precursor is unwound at a high speed, the spandex precursor falls off, and use of the device is affected is p