How does the combination scale work

  • 2021-07-14

The key components of the combination weigher include: hopper, material photoelectric detection switch, main vibration plate (main vibration machine), line vibration plate (linear vibration machine), storage hopper, weighing hopper, driving device (stepping motor), discharge Trough, collecting hopper, motor drive board, main board and A/D module. So how does the combination scale work, let me introduce you step by step:

1. The material vibrates through the main vibration plate in the feeding hopper, so that the material is distributed on the linear vibration plate on the conical funnel.

2. When there is no material or insufficient material in the line vibration plate, it will be detected by the material weighing module. At this time, a feeding signal will be sent to the main board, and then a feeding signal will be sent to the material conveyor through the feeder. The main board feeds until the material is detected.

3. The vibration of the line vibration machine drives the line vibration plate to vibrate, adjust the appropriate amplitude and vibration time, and send the material weight within a certain range to each storage hopper.

4. The driving device is a stepping motor, which opens the door of the storage hopper and sends the material into the weighing hopper. When there is no material in the weighing hopper below or there is insufficient material in the weighing hopper, the hopper will automatically open the door and put the material into the weighing hopper. hopper.

5. The material in the weighing hopper generates a weight signal through the sensor, and then it is transmitted to the main board of the control device through a wire. The CPU on the main board reads and records the weight of each weighing hopper, and then selects the best value through calculation, analysis, and combination. Combination weighing hopper close to the target weight. After the CPU receives the unloading request signal sent by the packaging machine, it sends a signal to start the weighing hopper motor driver, opens the selected weighing hopper, discharges the product into the discharge slot, and then the product enters the packaging machine. If there is a collecting hopper, the assembly weighing hopper is directly discharged to the collecting hopper, and when there is a discharge request signal, the collecting hopper motor is started to discharge the material to the packaging machine.

6. When the weighing hopper is discharged, the combination scale will send a signal to the packaging machine that the material has been discharged. The packaging machine will start to seal and cut the bag after receiving the signal. At this time, the packaging mechanism will send a discharge request to the combination scale after completing a bag. Signal, discharge the material and keep the circulation.

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