Basic working principle of rice automatic quantitative bagging machine
When the quantitative bagging machine enters the automatic operation state, the weighing control system opens the feeding door and starts feeding. The feeding device adopts the fast and slow feeding mode; When the material weight reaches the set value of fast feeding, stop fast feeding and keep slow feeding; When the material weight reaches the final set value, close the feeding door to complete the dynamic weighing process; At this time, the system detects whether the bag clamping device is in the predetermined state. When the packaging bag has been clamped, the system sends a control signal to open the discharge door of the weighing bucket, and the materials enter the packaging bag.
After the materials are discharged, the discharge door of the weighing bucket is automatically closed; After unloading the empty materials, loosen the bag clamping device, and the packaging bag will fall automatically; After the bag falls, sew it and transport it to the next station. It runs automatically in this cycle.
Classification and characteristics of non bucket scale and bucket scale:
1. Bucket free automatic quantitative bagging machine
The bucket free automatic quantitative bagging machine is also known as gross weight scale and auger scale. Its weighing and quantitative control process is relatively simple. The packaged items are directly loaded into containers or packaging bags for weighing, and the quantitative control process is achieved by controlling the opening size of the discharge door.
There is no "measuring bucket" in the bucket free scale, and the whole measurement is completed in the packaging bag. In fact, the "measuring bucket" is omitted, and the packaging bag is sleeved on the bag clamping device, which is actually supported and suspended by the weighing sensor, and then the bag is sleeved and clamped, so as to form a set of working mode of directly feeding into the bag while measuring
Features: simple structure and high precision. Select a weighing module to form a scale body with the scale platform, or directly select a platform scale, and then connect a weighing instrument and some simple control buttons to form a gross weight quantitative control equipment.
2. Bucket automatic quantitative bagging machine
Bucket automatic quantitative bagging machine, also known as net weight scale, its control process is to complete the quantitative feeding process through an intermediate metering bucket. At the beginning, the discharging door of the metering bucket is closed, the upper feeding port is opened for constant value feeding, and when the target value is reached, the feeding port is closed, and the opening is opened to feed the materials into the container or packaging, and then enter the next control cycle. In order to improve work efficiency, various feeding speeds can be adopted, generally double speed, namely fast and slow. The high-speed fixed value control of double scale wheel operation can also be adopted.
This bucket is essentially a scale in the shape of a hopper. The whole bucket is supported by a weighing sensor and suspended. There is a discharge door below. After the measurement is completed, the discharge door opens and the materials flow into the bag to complete a weighing.
Features: integrated structure, high precision and fast speed. This kind of structure is mostly used for special weighing control equipment. The net weight quantitative control system can be formed by using cooperative weighing sensors or weighing modules, weighing instruments and operation buttons.
