Packaging device and method of a packaged object

Abstract

The invention provides a packaging device and a packaging method of a packaged object. An interval transferring vertical bagging packaging machine is equipped with multiple catching devices on a rotating stage. A first spiral packaging device is configured at a first packaging place. A clamp and the first changing catching metering device of a gauge are configured at a metering place. A second spiral packaging device and a second changing catching metering device are configured at a second packaging place. When the metering value acquired by the gauge of the first changing catching metering device is more than a first threshold value, the second spiral packaging device and the second changing catching metering device are maintained in a non operating state. When the metering value acquired by the gauge of the first changing catching metering device is less than the first threshold value but more than a second threshold value lower than the first threshold value, the second changing catching metering device does not operate and the second spiral packaging device supplements the packaged object in an amount not corresponding to the pulse count. When the metering value acquired by the gauge of the first changing catching metering device is less than the second threshold value, the second changing catching metering device performs changing catching metering of the bag and the second spiral packaging device supplements the packaged object.

Description

technical field [0001] The invention of the present application relates to a packaged object filling device and method used in automatic packaging for packaging a packaged object while intermittently transporting a packaging container with an insertion opening positioned upward. More specifically, it relates to a packaging object filling device and method using a so-called screw filling device as a filling device. Background technique [0002] Conventionally, an automatic packaging machine has been used that performs various processes such as filling of objects to be packaged and sealing of the bag mouth at each station while intermittently transporting the bag with the bag mouth side up. For example, there is an intermittent transfer type vertical bagging and packaging machine that grips both side edges of a bag with a gripping device and transfers them intermittently. In addition, there is a so-called screw-type filling device as a filling device used for filling a packag...

AI Technical Summary

Problems solved by technology

[0004] However, such a screw-type filling device has the following problems: it cannot cope with changes in the apparent specific gravity of the packaged objects stored in the hopper affected by moisture, etc., and the influence of the storage amount in the hopper. Variations in the filling amount due to changes in the characteristics of the packaged goods, such as changes in the bulk density and, in the case of viscous packaged goods, changes in the viscosity

As a result, there is a possibility that the filling accuracy deteriorates, and many defective products due to the excess or deficiency of the filling amount are produced, and it takes time until the filling is stabilized, and the productivity is also lowered for this reason.

The improvement of filling accuracy and the improvement of productivity are generally considered to be in opposition to each other. It can be considered that if the improvement of filling accuracy is achieved, the productivity will decrease, and if the improvement of productivity is achieved, the filling accuracy will decrease.

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