Packaging machine and method for filling open-mouth bags comprising a filling spout, wherein by way of a motion oriented upwardly relative to the filling spout an open-mouth bag can be appended to the filling spout. A dosing device and a weighing device are provided for weighing a pre-defined quantity of a product intended for bagging. A volume flow control device is provided to control during the filling process a strength of the volume flow into the open-mouth bag in dependence on the time. The volume flow control device comprises a filling element and a control device to control during the filling process a strength of the volume flow into the open-mouth bag in dependence on the filling process so as to keep the top bag wall of the open-mouth bag substantially free of product intended for bagging. The filling element serves as a dosing device to transport the product intended for bagging from a dispensing silo into the open-mouth bag. The weighing device is configured as a gross-weighing device to determine during the filling process a measure for the weight filled into the open-mouth bag. A compactor is operated during the filling process.

Packaging machine and method for filling open-mouth bags comprising a filling spout, wherein by way of a motion oriented upwardly relative to the filling spout an open-mouth bag can be appended to the filling spout. A dosing device and a weighing device are provided for weighing a pre-defined quantity of a product intended for bagging. A volume flow control device is provided to control during the filling process a strength of the volume flow into the open-mouth bag in dependence on the time. The volume flow control device comprises a filling element and a control device to control during the filling process a strength of the volume flow into the open-mouth bag in dependence on the filling process so as to keep the top bag wall of the open-mouth bag substantially free of product intended for bagging. The filling element serves as a dosing device to transport the product intended for bagging from a dispensing silo into the open-mouth bag. The weighing device is configured as a gross-weighing device to determine during the filling process a measure for the weight filled into the open-mouth bag. A compactor is operated during the filling process.

The present invention relates to a guide unit for measurement acting as a guide for measuring the micro-weight of fine grains having minute weight and volume, such as powders, granules, seeds and pills, and to a micro-weight measuring system for accurately measuring the fine grains by a preset micro-weight by using the guide unit for measurement. The present invention has an effect of being capable of measuring the micro-weight as a unit to thereby package fine grains such as powders, granules, seeds and pills by micro-weight unit. In addition, the present invention has an effect of being capable of accurately measuring the fine grains by the preset micro-weight in such a manner that in the procedure of discharging a one-unit-micro-weight of the fine grains, some of the fine grains are discharged at a smaller amount than the initially-discharged amount and are finally discharged by dropping.

The present invention relates to a guide unit for measurement acting as a guide for measuring the micro-weight of fine grains having minute weight and volume, such as powders, granules, seeds and pills, and to a micro-weight measuring system for accurately measuring the fine grains by a preset micro-weight by using the guide unit for measurement. The present invention has an effect of being capable of measuring the micro-weight as a unit to thereby package fine grains such as powders, granules, seeds and pills by micro-weight unit. In addition, the present invention has an effect of being capable of accurately measuring the fine grains by the preset micro-weight in such a manner that in the procedure of discharging a one-unit-micro-weight of the fine grains, some of the fine grains are discharged at a smaller amount than the initially-discharged amount and are finally discharged by dropping.

An automated granule portioning system includes at least one volumetric measuring chamber capable of adjusting the volume of the chamber automatically to a programmed target volume and arranged to receive a first portion of granules into the chamber to fill the target volume. A transport system automatically delivers the target volume of granules from the chamber to a weighing device. A granule metering device dispenses granules and, depending on a signal from the weighing device that the first portion of granules is below a programmed target weight, dispenses granules to the first portion to increase the weight to achieve a second portion having the target weight.

An automated granule portioning system includes at least one volumetric measuring chamber capable of adjusting the volume of the chamber automatically to a programmed target volume and arranged to receive a first portion of granules into the chamber to fill the target volume. A transport system automatically delivers the target volume of granules from the chamber to a weighing device. A granule metering device dispenses granules and, depending on a signal from the weighing device that the first portion of granules is below a programmed target weight, dispenses granules to the first portion to increase the weight to achieve a second portion having the target weight.