Quantitative belt scale is a comprehensive equipment for distributed material conveying, dynamic weighing, and automatic control feeding. Unlike belt scale, it is a device designed and manufactured according to the working environment and can be independently applied.
Its composition is also more complex. The body of the quantitative belt scale includes a belt conveyor, but also has weighing and control functions. The hardware module mainly includes motors, reducers, rollers, idlers, belts, tensioning devices, cleaners, etc. The weighing module, like the belt scale, includes speed sensors and weighing sensors, and the control part is mainly implemented through instruments.
(1) Quantitative belt scale body
Motor: The top-level of the quantitative belt scale must meet the power requirements of the application, and the variable frequency motor generally needs to reach the flow variation range of the quantitative belt scale, otherwise it is difficult to support operation.
Roller: Roller is divided into active roller and passive roller. The roller of the quantitative belt scale should have a raised center to force the belt to track. The driving roller should be equipped with a protective layer to ensure uniform conveying without slipping.
Roller: Roller is a device used to support the belt. The weighing roller and the rollers before and after the weighing roller must be high-quality rollers suitable for weighing, with flexible operation and small radial runout.
Belt: The belt can be a circular belt without joints, with accurate dimensions, constant weight per unit length, and equal side lengths on both sides. The circular belt requires a quantitative belt scale frame with detachable supports for easy belt replacement. The material of the belt should meet the material characteristics, such as selecting high-temperature resistant materials for high-temperature materials. A belt with a blocking edge can accommodate more materials like a skirt.
Skirt board: One of the key factors to ensure accurate weighing is that the material does not leak or spill when transported along the belt, and the material blocking skirt board plays a role in blocking the material. The material of the skirt board should also meet the material characteristics, such as choosing corrosion-resistant materials such as stainless steel for materials with corrosiveness.
Cleaning device: During the belt conveyor process, materials may adhere and be repeatedly weighed, resulting in inaccurate measurement. Configuring a belt cleaner can keep the belt clean.
Tensioning device: Constant belt tension is an important factor in maintaining measurement accuracy. The belt tensioning device can overcome changes in belt tension caused by temperature effects or changes in material flow rate, and maintain constant belt tension.
(2) Weighing control module
Weighing sensor: Like a belt scale, a quantitative belt scale uses a weighing sensor to detect the weight of the material passing through and convert it into a load signal. Digital weighing sensors have stronger anti-interference ability and higher accuracy compared to analog sensors.
Speed sensor: The speed sensor of the quantitative belt scale is usually installed on the drive wheel to detect the belt speed and convert it into a speed signal.
Instrument: The instrument receives load signals and speed signals and performs arithmetic processing to obtain material flow rate. Unlike belt scales, quantitative belt scales have control functions.
Control cabinet: Multiple quantitative belt scale instruments can be integrated on the control cabinet to achieve centralized operation and management.
Of course, in addition to the above parts, there are many other components of the quantitative belt scale, both hardware and software, that serve the needs of on-site production applications. If you have any needs, you can directly consult Guonuo Technology and arrange specialized personnel to answer your questions.
