Knowledge that must be understood when using a weightless scale

The weightlessness scale is the weightlessness feeder we often say, and it is a kind of mechanical equipment for the measurement and verification of solid fiber raw materials. On the one hand, weightlessness scales can transport small materials with fine particles below 5mm, and have the advantages of continuous and uniform transportation, adjustability and strong adaptability. Weightlessness scales are often employed for particles, powders, calcium carbonate, talcum powder, etc. Resin film powder products, flour, starch and other industries. The weightlessness scale controls the discharge screw or electric vibrator according to the rate of decrease of the weight of the material in the weighing hopper to achieve the purpose of quantitative feeding, that is, a weightlessness scale. When the material in the weighing hopper reaches the lower limit position of the weighing, the material is discharged The screw machine fixes the discharge amount according to the current speed, and at the same time controls the material in the silo to quickly drop into the weighing hopper. When the material is loaded to the upper limit of the weighing, the loading is stopped. Fast loading can shorten the feeding time and improve the weighing. Heavy accuracy and control precision. The weight sensor is the core component of the weightless scale, which converts the interaction force into the data signal of the electronic device. The weight sensor is divided into various types from the basic concept, including resistance judgment type, piezomagnetic type, capacitance sensor, etc., but comprehensive consideration is given to accuracy, precision, rationalization, and convenience. At present, many production processes The one is still a resistance-judgment-type inductive switch. It often accounts for more than 90% of the weightless feeder. Resistance-judgment sensor switches have improved their characteristics in recent years. With the development of automatic automatic control systems in industrial production towards intelligent systems, digital display weightless state feeders have also been designed, developed and applied in recent years. . By doing it, it outputs the amount of information immediately, which further improves the anti-interference ability in transmission, and promotes the extremely convenient and fast communication with the computer. Because of the cancellation of the simulation increase and A/D conversion link in the dashboard of the car, the dashboard of the car is greatly simplified in the computer display and control field, and the weighing display can be omitted. At present, there are about two types of such inductive switches: resistance-judgment-type data information weightlessness state feeder and new digital display type weightlessness state feeder. Therefore, it is recommended to control the production and processing quality of the weightless state feeder during the entire process of production and processing, so as to reduce the difficulties caused by mechanical equipment in the production and processing.