Manufacturing method and manufacturing apparatus for pouch container

A manufacturing method for a pouch container for continuously manufacturing a plurality of pouch containers from materials including:

• a plurality of separate-type tubular film members each including a portion to be formed as a barrel portion of a pouch container:
• a single first belt-shaped film member including a plurality of portions each to be formed as a top gusset portion or a bottom gusset portion of the pouch container;
• and a single second belt-shaped film member including a plurality of portions each to be formed as a top gusset portion or a bottom gusset portion of the pouch container, the manufacturing method comprising:
• conveying each of the separate-type tubular film members in an aligned state on a conveyance path;
• closing at least a portion of a first opening end of each of the separate-type tubular film members by a portion of the single first belt-shaped film member in a first attachment process region provided on the conveyance path, wherein the first opening end is located on one end side in an axial direction of each of the separate-type tubular film members;
• and
• closing at least a portion of a second opening end of each of the separate-type tubular film members by a portion of the single second belt-shaped film member in a second attachment process region provided on the conveyance path, wherein the second opening end is located on the other end side in the axial direction of each of the separate-type tubular film members, wherein
• in the conveying each of the separate-type tubular film members, each of the separate-type tubular film members is disposed on the conveyance path in a state where a conveyance direction on the conveyance path is orthogonal to the axial direction, and flatly folded such that a pair of bent portions are formed at both end portions orthogonal to the axial direction, and a cut is made in each of an end portion close to the first opening end and an end portion close to the second opening end in an extending direction of the pair of bent portions, to allow each of the separate-type tubular film members to be conveyed in a state where a first joining margin and a second joining margin are provided in the first opening end and the second opening end, respectively,
• the closing at least a portion of the first opening end of each of the separate-type tubular film members by a portion of the single first belt-shaped film member includes:
• supplying the single first belt-shaped film member to the first opening end of each of the separate-type tubular film members by conveying the single first belt-shaped film member in parallel with the separate-type tubular film members at a same speed as a conveyance speed of the separate-type tubular film members, so as to cause the single first belt-shaped film member to overlap with the first joining margin of each of the separate-type tubular film members, the first joining margin being in an opened state;
• and
• joining the first joining margin of each of the separate-type tubular film members to a portion of the single first belt-shaped film member that overlaps with the first joining margin, and
• the closing at least a portion of the second opening end of each of the separate-type tubular film members by a portion of the single second belt-shaped film member includes:
• supplying the single second belt-shaped film member to the second opening end of each of the separate-type tubular film members by conveying the single second belt-shaped film member in parallel with the separate-type tubular film members at a same speed as a conveyance speed of the separate-type tubular film members, so as to cause the single second belt-shaped film member to overlap with the second joining margin of each of the separate-type tubular film members, the second joining margin being in an opened state;
• and
• joining the second joining margin of each of the separate-type tubular film members to a portion of the single second belt-shaped film member that overlaps with the second joining margin.