Continuous rotary filling and packaging machine

摘要

A continuous rotary filling and packaging machine covers a container body with a molded lid and ultrasonically seals the container body. The molded lid to produce a sealed container includes a lid detecting device 70 disposed on the downstream side of the lid supplying device 60 and an ultrasonic sealing device 100 including lifting and lowering means including a cam mechanism for lifting and lowering a container table 103. The lifting and lowering means is configured such that the molded lid on the container body and a seal working surface of an ultrasonic horn 108 come into press-contact with each other at a top dead point of the container table. A container table lowering control mechanism does not lift, to the top dead point, a container table of a container whose container body does not have the molded lid placed thereon or properly placed thereon as determined.

主权项

1. A continuous rotary filling and packaging machine that fills a container body with liquid contents, covers the container body filled with the liquid contents with a lid, and seals the container body and the lid to produce a sealed container, the filling and packaging machine comprising:
a filling device that fills the container with the liquid contents while the container body rotationally moves; a lid supplying device that supplies a molded lid to an upper end opening of the container body that is filled with the liquid contents and transferred from the filling device; a lid detecting device to determine a container whose container body does not have the molded lid placed thereon or properly placed thereon, the lid detecting device being disposed on a downstream side of the lid supplying device; and a sealing device including
a seal working surface for heat-sealing the molded lid to the upper end opening of the container body to produce the sealed container while the container body on which the molded lid is placed rotationally moves,a cam mechanism for lifting and lowering a container table on which the container body is placed, the cam mechanism being configured such that the molded lid on the container body and the seal working surface come into press-contact with each other at a top dead point of the container table, anda container table lowering control mechanism that does not lift a container table of a container whose container body does not have the molded lid placed thereon or properly placed thereon as determined by the lid detecting device, to the top dead point, wherein the container table lowering control mechanism of the sealing device includes a fluid pressure cylinder for controlling the container table to be lowered against lifting of the container table by an urging force of the spring.