Abstract: A thermoforming device includes two conveying units, a heating unit, a heat treatment unit and a forming unit. The conveying units define a clamp space and are adapted to move a raw material in a conveying direction. The heating unit is disposed at one side of the clamp space along a first axis, and includes a plurality of heating subunits adapted for heating the raw material. The heat treatment unit abuts against the heating base, and includes a plurality of temperature control subunits adapted for adjusting the temperature of the raw material. The forming unit is disposed proximate to the heat treatment unit and is adapted for forming the shape of the raw material.

Abstract: A curled-edge and double-layered cup includes an outer cup unit including an outer base wall, an outer surrounding wall, and an outer top wall, and an inner cup unit disposed within the outer cup unit. The inner cup unit includes an inner base wall disposed above the outer base wall, an inner surrounding wall surrounded by the outer surrounding wall, and a curled-edge unit enclosing the outer top wall. The curled-edge unit includes an inner top wall disposed above the outer top wall, and an outmost surrounding wall having a surrounding portion connected to the inner top wall and surrounding the outer top wall, and a bottom seal portion extending inwardly from the surrounding portion and disposed under the outer top wall.

Abstract: A thermoforming device includes two conveying units, a heating unit, a heat treatment unit and a forming unit. The conveying units define a clamp space and are adapted to move a raw material in a conveying direction. The heating unit is disposed at one side of the clamp space along a first axis, and includes a plurality of heating subunits adapted for heating the raw material. The heat treatment unit abuts against the heating base, and includes a plurality of temperature control subunits adapted for adjusting the temperature of the raw material. The forming unit is disposed proximate to the heat treatment unit and is adapted for forming the shape of the raw material.