Filling device and filling method for objects to be packed of filling and packing machine

Abstract

The invention provides a filling device and a filling method for objects to be packed of a filling and packing machine, wherein the balance between a high-accuracy filling process and an improved productivity is realized by correspondingly switching between a weight-type control and a pulse-type control according to the description of the object to be packed. An intermittent conveying type vertical filling and packaging machine comprises a plurality of groups of clamps on a rotary table and a filling station is equipped with a spiral type filling device, a clamping head and a first clamp-changing and metering device of a metering instrument. The metering station is equipped with a clamping head and a second clamp-changing and metering device of the metering instrument. When the weight of a bag calculated by the second clamp-changing and metering device is within a pre-determined range, the first clamp-changing and metering device is not driven. The filling amount of the bags on the filling station is controlled by the pulse number generated by a servo motor. When the weight of a bag calculated by the second clamp-changing and metering device is not within a pre-determined range, the first clamp-changing and metering device is driven. The real filling amount is calculated by the metering instrument.

Description

technical field [0001] The present invention relates to a packaging object filling device and filling method used in an intermittent conveying type vertical filling and packaging machine. More specifically, it relates to a packaging object filling device and a filling method using a so-called screw type filling device as a filling device. Background technique [0002] Conventionally, an intermittent conveying type vertical filling and packaging machine has been used, that is, the bag is held with the opening side as the upper side by a gripping device such as a jig, and the bag is intermittently conveyed while filling the packaged objects at each station. , bag sealing and other treatments for packaging. Furthermore, there is a so-called screw-type filling device as a filling device for filling a powdery, granular, or viscous substance to be packaged. [0003] The screw type filling device has such a structure, that is, an auger screw is arranged in a hopper for storing th...

AI Technical Summary

Problems solved by technology

As a result, the filling accuracy deteriorates, and many defective products are generated due to the excess or deficiency of the filling amount. It takes time until the situation is resolved, so the productivity may also decrease.

It is generally believed that the improvement of filling accuracy is opposite to the increase of productivity. It is generally believed that if the filling accuracy is improved, the productivity will be reduced, and if the productivity is improved, the filling accuracy will be reduced.

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