The basic working principle of quantitative packing scale

The quantitative packing scale consists of weighing unit, trolley, sewing package conveying device, pneumatic system, dust removal system, quantitative packaging control instrument and so on. The key component that affects the packaging speed and accuracy is the weighing unit, which includes a storage bin, a gate, a cutting device, a scale body, a bag holder device, a bracket, and an electrical control device. The storage bin is a buffered silo for material storage and provides a nearly uniform material flow; the gate is located at the bottom of the storage bin, and is used to block the material in the storage bin when the equipment is overhauled or fails; The material device is composed of a cutting hopper, a cutting door, a pneumatic component, a supplemental valve, etc., and provides two kinds of fast and slow feeding in the weighing process, and the material flow of the fast and slow feeding can be separately adjusted to ensure the quantitative The packaging scale meets the accuracy requirements and speed requirements of the metering; the function of the air supply valve is to balance the air pressure difference in the system during weighing; the scale body is mainly composed of a weighing hopper, a load bearing bracket and a load cell to complete the weight to electrical signal. The transformation and transmission to the control unit; the bag-holding device is mainly composed of a bag-holding mechanism, a pneumatic component, etc., and functions to clamp the packaging bag, so that all the materials that have been weighed fall into the packaging bag; the electric control device is composed of a weighing display controller, The components of electrical components and control cabinets function as control system to make the whole system work in an orderly manner according to preset procedures.