Abstract: Provided is a double-needle lockstitch sewing machine that can easily sew a fabric rolled into a tubular shape by two rows of lockstitch. The double-needle lockstitch sewing machine includes: a pair of needles (9) that reciprocates in an up-down direction; a pair of loop catchers (40) that is arranged respectively corresponding to the pair of needles (9) and that catch loops of needle threads formed by the needles (9) by rotating about hook shafts (41) extending in the up-down direction; a lower shaft (20) that is disposed in front of the needles (9) and the loop catchers (40) in the cloth feeding direction and extends in the left-right direction and that rotates in conjunction with a main shaft (10) that drives the needles (9); and connecting shafts (30) that extend in the cloth feeding direction and are connected to the lower shaft (20) and the hook shafts (41) in a power transmittable manner to rotate.

Abstract: The packaging apparatus comprises a former for forming a film sheet to a cylinder, a vertical chute pipe coaxially disposed in the former, support members for supporting the chute pipe disposed on load cells fixed on a frame separately in structure, a vertical heat sealer for sealing the film sheet into a cylinder, a controller for calculating the weight of goods to be put in the cylinder, a weighing unit for putting the goods in the cylinder while being controlled by the controller, a lateral heat sealer for sealing the cylinder under the end of the chute pipe for closing the cylinder filled with the goods and separating it by cutting while remaining a bottom portion of a next bag, wherein the controller controls a sequential steps of operation of the apparatus.