Packing Machine automation requirements

Bulk density of granular materials because of their variability , instability of gravity makes the accurate measurement must be completed by the gravimetric method , whether mechanical or electronic weighing , processes are time dynamic process. The difference is , electronic weighing , process monitoring can be implemented by software , and mechanical weighing , measuring process monitoring device must be designed and implemented with the control software .

In short, the weighing device design is to properly resolve the speed and accuracy when weighing measurement contradiction . The screw volume measurement program , the structure is simple, flexible action , high transmission efficiency , but the volumetric cup generally applicable to a measurement of a certain limited Packing Machine, and due to manufacturing error of the measuring cup , with changes in density of the material , measurement error cannot be adjusted ; although called metering auger adjustment , but the adjustment error , the action agile enough to face a wide variety of goods

Packing Machine automation requirements, have little practical meaning of the metering program , needs improvement. And I improved it the active force is controlled by a stepper motor . Stepper motor is an electrical pulse signal into a corresponding angular displacement or linear displacement of the motor actuator , an electrical pulse whenever the input , it will turn a fixed angle . One by one input pulse , the motor will rotate step by step . When the stepping motor is constant , the speed is determined by the pulse frequency .