Patent ID: 6314706
Filing Date: 2001-11-13
Classification: B65B,G01G

Abstract:
A vertical type of bag-making, filling and packaging apparatus, comprising:a frame;a bobbin mounted on the frame to supply a film sheet;a former for winding the film sheet supplied around a chute pipe provided vertically and coaxially with the former;support members for supporting the chute pipe and the former;at least one load cell fixed on the frame for receiving the weight of the support members;a vertical heat sealer for sealing the film sheet wound around the chute pipe into a cylinder;a vacuum draw-down device to draw the cylinder downward by a given stroke corresponding to one bag;a lateral heat sealer to seal the cylinder laterally at the portion protruded from the lower end of the chute pipe to form a bottom portion of a bag;a goods weighing unit disposed above the chute pipe for putting a predetermined weight of goods into the cylinder through the chute pipe; anda controller for controlling a sequential timing of the apparatus operations including the vertical sealing, lateral sealing, drawing down of the cylinder and putting a given weight of goods through the chute and into the cylinder after the bottom portion of the bag is formed, the given weight of goods being determined by a calculation based on an electrical signal from the at least one load cell to the controller, wherein a total weight of the support members, the chute pipe, the former, the cylinder and goods supported by the cylinder is measured and floatingly supported by the at least one load cell at a position above said at least one load cell.