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.

An apparatus for forming an upper edge of a paperboard container includes a pocket including a shell having a cavity with a mouth configured to receive the container along an axis such that the rim extends beyond the mouth. A workstation includes a forming member having a first forming surface which is actuatable toward the axis from a retracted position spaced from the rim to an extended position lying adjacent an upper end of the rim, and a forming segment having a second forming surface which is actuatable along the axis and the forming member in response to axial movement thereof such that the second forming surface is positioned spaced from a lower end of the rim. The second forming surface is actuatable along the axis towards the first forming surface to form the rim therebetween.

The present invention relates to a process for the production of a cup having a bottom and a sidewall attached to the bottom, wherein the sidewall preferably comprises a rolled rim at its upper edge opposite to the bottom, wherein the sidewall comprises a single layer or a plurality of layers, wherein at least one of the layers is produced from a paper material, carton, plastic, PLA, a renewable and/or a biodegradable resource and or any other comparable material, where-in at least one shaping is shaped into at least one of the layers of the sidewall, wherein the shaping is at least partially ring-shaped, wherein the shaping extends at least partially over the perimeter of the sidewall, wherein the shaping is inwardly or outwardly directed, wherein the shapings are compressed in height such that an edge of each shaping touches an opposite segment of the shaping and/or that both edges of each shaping touch each other and are joined together, and a cup produced by this process.

A container is formed to include an interior region and a mouth opening into the interior region. The container includes a floor and a side wall coupled to the floor to define the interior region between the floor and the side wall

A telescopic flanging inner expansion assembly, a flanging device and a flanging method for pulp molded cup lids solve defects such as unreasonable design in related art. The telescopic flanging inner expansion assembly includes a fixed air supply seat, a rotating shaft, a flanging positioning seat, movable inner expansion blocks, and a pneumatic driving mechanism. The rotating shaft is in an upright state, the rotating shaft penetrates the fixed air supply seat and is rotatable relative to the fixed air supply seat. The flanging positioning seat is fixedly mounted on a top of the rotating shaft. This allows the flanged pulp molded cup lid to be quickly removed without causing radial expansion of the inner diameter of the inner convex part during the removal process, ultimately ensuring a sealing performance of the pulp molded cup lid when placed on a cup and further enhancing the anti-detach performance.

A telescopic flanging inner expansion assembly, a flanging device and a flanging method for pulp molded cup lids solve defects such as unreasonable design in related art. The telescopic flanging inner expansion assembly includes a fixed air supply seat, a rotating shaft, a flanging positioning seat, movable inner expansion blocks, and a pneumatic driving mechanism. The rotating shaft is in an upright state, the rotating shaft penetrates the fixed air supply seat and is rotatable relative to the fixed air supply seat. The flanging positioning seat is fixedly mounted on a top of the rotating shaft. This allows the flanged pulp molded cup lid to be quickly removed without causing radial expansion of the inner diameter of the inner convex part during the removal process, ultimately ensuring a sealing performance of the pulp molded cup lid when placed on a cup and further enhancing the anti-detach performance.