The Filling machine Electronic scale is a special equipment for automatically measuring and filling liquid products. It mainly consists of an automatic transmission system, a Weighing system, a machine vision addressing system, an automatic addressing system for the filling port, an automatic Filling system without dripping or leakage, a filling data query and management system, an online detection device, etc. During the filling process, an empty bucket is placed at the input end, and the automatic transmission system transfers it to the measurement position. Here, the automatic addressing of the bucket opening is completed, and then the filling system is driven by two-axis stepper motors to the bucket opening. The filling machine completes the filling action through the pneumatic actuation system, and the bottom filling machine fills nitrogen gas according to the software-set time. After that, the no-drip bottom valve device is opened for filling. The automatic filling system completes the measurement filling, records the filling data, and gives voice prompts for the filling weight. Then, the motor controlled by the frequency converter transmits the finished product bucket to the next station and stops. The operator then closes the lid. Thus, one measurement and packaging procedure is completed.

The automatic filling machine has two identical quality detection devices. Each quality detection device is equipped with an electronic scale, a quality detection platform, and a bucket-lifting clamping mechanism, a rotating main shaft for taking the bucket, and a main shaft lifting mechanism. After the electronic scale receives the electrical signal, it outputs it to the online quality calibration controller. The online quality calibration controller outputs the measured quality signal and error signal, and performs online quality calibration on the filling volume of the quantitative filling system. The PLC receives signals such as rough flow, fine flow, out-of-tolerance, and completion from the weighing instrument, and controls the electromagnetic valve on the quantitative electronic scale to turn on or off, thereby controlling the opening and closing of the feeding door and completing the automatic control of feeding. When the system is in automatic operation mode, the weighing controller sends a zero point signal to the PLC, which then sends a start pulse signal to the weighing controller and controls the opening and closing size of the feeding door according to the rough flow and fine flow signals sent by the weighing controller. Initially, both the rough flow and fine flow signals are ON, and the feeding door is fully open, allowing the material to enter the weighing bucket; when the weight of the material in the weighing bucket reaches the preset value of the rough flow, the rough flow signal changes from ON to OFF, while the fine flow signal remains ON. At this point, the feeding door is slightly closed to the fine flow port for fine feeding; when the weight of the material in the weighing bucket reaches the preset value of the fine flow, the fine flow signal changes from ON to OFF, and the feeding door is completely closed. The weighing controller also gives a completion signal.

When the position detection device of the Liquid filling machine detects the arrival detection signal of the filling bucket before filling, the conveyor belt stops, and the motor of the main shaft lifting mechanism lowers the rotating main shaft of the bucket to the designated position. Then, the bucket-lifting clamping mechanism clamps the filling bucket and raises it to the designated position. The conveyor belt starts, and the rotating main shaft of the bucket lifts the filling bucket to the top of the quality detection platform. When the rotating main shaft lowers to the designated position, the bucket-lifting clamping mechanism releases the filling bucket and brings it to the designated position. Quality detection is then performed, and the input signal of the measured weight of the filling bucket is output. Next, the bucket-lifting clamping mechanism clamps the filling bucket, and the rotating main shaft rotates upward. The filling bucket is then transferred to the conveyor belt. The conveyor belt stops, the rotating main shaft lowers to the designated position, the bucket-lifting clamping mechanism releases the filling bucket, and the rotating main shaft rises. The conveyor belt starts, completing one quality detection action before filling and repeating this process.