Bag Transfer Device

摘要

A rotary bag transfer device used in a bag filling and packaging apparatus and provided with a plurality of pairs of grippers installed around an intermittently rotating table. The bag transfer device includes an arm support mechanism (21), which supports the base portion of an arm (15) of each one of the pair of grippers (13), and a drive force transmission mechanism (22), which actuates the arm support mechanism. A link (51) that is part of the drive force transmission mechanism is linked at its one end to an adjusting ring (49), a link (46) is linked at its one end to the arm support mechanism, and these links are linked together at their other ends. When the adjusting ring rotates, a center plane (M) between the grippers is displaced (for amount Da) to offset from a reference plane (N) that passes through the center (O) of the table.

主权项

1. A bag transfer device,
which comprises:
a table that intermittently rotates by a constant angle around a vertical axis thereof within a horizontal plane,a plurality of pairs of grippers that are disposed around the table and moved along a circular movement path as the table rotates, anda spacing adjustment mechanism that increases or decreases a spacing within the horizontal plane of the pair of grippers while the plurality of pairs of grippers are being moved along the movement path; and in which
each gripper is composed of an arm and a clamping component installed at a distal end of the arm,the clamping components of the grippers clamp side portions of a bag, andthe bag is transferred along a circular transfer path;wherein
the spacing adjustment mechanism comprises:
an arm support mechanism disposed at each arm of the grippers,a drive force transmission mechanism that operates the arm support mechanism, anda gripper layout adjustment mechanism that adjusts layout of the grippers using a vertical plane passing through said axis as a reference plane; and an operation of the gripper layout adjustment mechanism allows desired setting of:
a reference layout in which the pair of grippers are laid out opposite each other and spaced apart equally with the reference plane in between, oran eccentric layout in which the grippers are laid out opposite each other at mutually different spacings with the reference plane in between.