The feeding system generally includes a storage bucket, a weighing hopper and a mixing bucket. The weighing hopper is installed on the weighing sensor through a support, the storage bucket is located above the weighing hopper, and the mixing bucket is located below the weighing bucket. The storage bucket is put into the weighing bucket for weighing through the valve controlled by the cylinder. When the weighing weight is the same as the set weight, the control is off because the raw material falls directly from the bottom of the storage bucket into the weighing bucket.
020-34563445The dosing system adopts ISP integrated weighing module. The weighing device includes special weighing module, weighing display unit, process control program, speed sensor, junction box and so on. The weighing module's measurement input channel is connected to one or more Weighing modules, each of which provides a count value related to a measurable material weight, and the weighing module collects data 50 times per second. The module has two high-speed discrete outputs. When the threshold voltage reaches a certain value, a continuous response time operation is triggered. There is a sealable digital connection that usually displays the instantaneous weight on an external display device. The module can be inserted into the PLC backplane through the card slot. The weighing module has verification zero presets, automatic peeling, zero tracking and transient measurement functions, and can also provide different data related to the weighing board, including gross weight, net weight, stability related to instantaneous flow measurement, zero, overload, load loss, manual and tare data, discrete output, tare value storage and preset value storage.
When the screw scale is running, the instantaneous weight and running speed of the material per unit length of the screw scale can obtain the weight of the material in the screw tube, the instantaneous weight of the material per unit length and the running speed of the screw scale in the unit time. Spiral feed scale is a mechanical and electrical integration weighing device which combines gravity weighing principle with spiral conveying method to realize dynamic continuous measurement. It is compact and easy to use.
Electromagnetic sensors are used to detect the instantaneous speed of the screw Feeder. The sensor has the characteristics of reliable detection, stable operation and small maintenance. The sensor is mounted on the screw shaft head and consists of an oscillator, a trigger circuit and a switching signal output device.
The sensor's power supply is DC24V. After the power is turned on, the oscillator begins to oscillate, producing a specific current that causes the oscillating coil mounted on the ferrite to generate an electromagnetic field, which is concentrated on the sensing surface of the sensor. If the test object is a magnetic conductive material, when approaching the induction surface, eddy currents will be generated in the magnetic field, consuming the oscillator energy, resulting in oscillation attenuation. Therefore, the oscillator amplitude drops to a specific value, and the subsequent trigger circuit starts working and outputs a pulse signal.
