Solutions for Inconsistent Feeding and Sealing on Vertical Granule Packaging Machines
Inconsistent feeding and sealing on vertical granule packaging machines often leads to material being caught in the seal. These machines typically use two types of feeding and weighing systems: electronic scale weighing and volumetric cup metering. Different adjustment measures are required for each method.
I. Electronic Scale Weighing System
The electronic scale weighing system features high accuracy, fast speed, quiet operation, stable performance, and long service life.
Slow feeding speed: May cause material to be caught in the seal. The feeding time should be extended in the program parameters to ensure granules fully fall into the bag.
Fast feeding speed: Material may drop before the packaging machine completes the sealing cycle. The discharge time should be extended to allow the machine to reliably read the signal.
II. Volumetric Cup Metering System
The volumetric cup metering system is slightly less accurate than the electronic scale but more cost-effective. When feeding and sealing are inconsistent, adjustments to the cup level and feeding/sealing timing are required:
Feeding too fast: Push down handle ①, lift the cam ②, and slightly turn turntable ③ counterclockwise.
Feeding too slow: Slightly turn turntable ③ clockwise.
III. Calibration Methods for Inaccurate Feeding
1. Electronic Scale System (Elevator + Computer Combination Scale)
If overfeeding occurs:
Check whether the elevator is overloaded with material and reduce the vibration amplitude appropriately.
Check whether the material entering the storage vibrating tray is too thick; if so, reduce the feed thickness (decrease the supply volume).
2. Volumetric Cup Metering System
If overfeeding occurs:
The cup volume (depth) may be too large. The metering device should be adjusted to reduce the cup depth (decrease volume) to reduce the amount fed per cycle.
Conclusion
Consistency between feeding and sealing on vertical granule packaging machines directly affects packaging quality. By properly adjusting parameters, timing, and cup volume according to the different metering systems, material being caught in the seal can be effectively avoided, improving packaging accuracy and production efficiency.
