What is the screw feeder?
The screw feeder is a device used in various industries to accurately or feed amorphic or free granular materials from one part of the process to another. The screws of the screws are very similar to the screw conveyors in their basic structure, which are based on the principles of the Archimedic screw for their operation. The screw feeder is able to supply dense sludge and dry granular products with high accuracy at a number of operating speeds. These feeders are also able to maintain high torque values needed to feed these types of materials throughout their speed range. There are two basic types of screw feeder. The Archimedean screw is one of the oldest machines for a positive relocation to a well -known person; It is a beautifully simple and efficient method of moving substances as diverse as sand and water. All machines based on this design have a spiral screw mounted on the central Shaft controlled by different methods. This assembly turns insideTube equipped with a feeder mechanism at one end. The material is added to the end of the device feed and is transported to the end of the discharge by the positive relocation process.
Materials suitable for supplying feeder usually screw the released granular or dense consistency of the porridge. These include granulated injection thermoplastics, cereal grains and suspended chemicals or pharmaceutical ingredients. The screw feeders are able to supply high torque levels at all operating speeds needed to transport these types of materials. Relatively slow speeds involved in the process are also beneficial in feeding sensitive materials.
The screw feeder is controlled by servomotors capable of accurate speed and speed control. In the volumes of the screws, the amount of transported material is calculated and controlled by adjusting the speed at which the screw rotates. This variable inThe connection with the known volume of the material in the tube makes it possible to maintain very accurate feed values. The speed of rotation can be preset or constantly modified according to the processes requirements.
The gravimetric feeder feeder rate, one of the basic types of screws, is controlled by a speed adjustment at which the material is inserted into the machine. This closed loop control system is more accurate than a volume feeder, the second type and commonly used in applications requiring the highest level of feed accuracy. However, both types are ideally suitable for applications that require constant and accurate checking the speed of the granular material feeding process.