How do Electromagnetic Vibratory Feeders Work? – Components & Principles

Electromagnetic Vibratory Feeders are machinery found in a variety of sectors and production facilities, including glass, cement, mineral processing, metal, chemical, foundries, and ceramics.

They can perform a variety of tasks, including screening, packaging, and transporting. Bulk materials can also be handled by the equipment. They're employed to make a product flow that's both smooth and volumetric.

Electromagnetic Vibratory Feeders are designed to be highly efficient and capable of handling abrasive and high-temperature materials. They can also meet sanitation requirements because the feeder trays do not collect material and Electromagnetic Vibratory Feeders are self-cleaning.

We've gone over how an Electromagnetic Vibratory Feeder works and what pieces it has in this blog to help you understand how it works.

Working Principle

The name of the machine is self-explanatory. The feeder tray vibrates, which is how the Electromagnetic Vibratory Feeder works. That is how the conveying procedure is carried out.

Vibratory feeders are used to transferring bulk materials using a regulated vibratory force.

The item is placed in the feeder tray. When the tray vibrates, the product moves in a series of hops. A series of hops is used to keep the product moving continuously. A combination of horizontal and vertical motions produces vibrations. The magnet located beneath the feeder tray is responsible for this series of events. The vibrations are caused by the magnetic pulses emitted by the magnet.

A coil under the feeder tray conducts an alternating electric current, which draws the magnet as it moves in one direction, causing the springs to grow tense. The magnet is freed when the current changes direction, causing the spring to move the tray. The vibratory motion is created when this entire procedure is repeated at a high frequency.

The angle of the spring influences the direction and movement of the material being processed. The tilt can be adjusted to control the direction in which the material slides and moves.

 

Components

Feeder Tray:

Let's look at the different components of an Electromagnetic Vibratory Feeder now that we know how it works. The following parts and components make up the machine:

Tray for Feeders

The feeder tray is a trough-like/trough-shaped tray that is used to handle products and materials as part of the machine. The main purpose of the feeder tray is to direct the product being fed to the proper location.

The tray is designed and manufactured to ensure that no product flows out during the processing process. The tray must also be constructed in such a way that the majority of the machine's energy is transferred to the product, ensuring proper separation.

Spring: 

The feeder tray is connected to the machine's base unit by a spring. The springs are also responsible for the feeder tray's oscillation and vibration.

Because the magnet has a defined frequency and the feeder tray vibrates at its own natural frequency, the machine must be built so that the overall frequencies are the same. The stiffness of the springs and the bulk of the tray dictate this.

Making sure the machine vibrates at a consistent frequency helps to encourage product flow while also reducing stress on the feeder tray.

Magnet  and Coil:

The magnet is attracted by the coil. The magnet is attached to the feeder tray, while the coil is attached to the base unit. The magnet is attracted by the electric current passing through the coil, which also attracts the feeder tray. The vibrations are created by an electromagnet that is constantly attracted and repulsed.

Base Unit:

The base unit serves as the machine's foundation. It is the lowest of the springs' mounting points, with the feeder being the upper. Aside from that, the foundation is utilized to ensure that the machine's vibrations do not spread throughout the entire machine, causing harm to nearby structures, machinery, and infrastructure. The vibrations are not transmitted out of the utilized equipment due to the mass of the base.

The feeder moves in the utilized equipment same direction as the base but in the opposite direction. Because the mass of the base is inversely related to its movement, increasing the mass will diminish movement.

The rubber blocks also connect the base to the support framework.

Feeder Control System: 

A Vibratory Feeder has extremely minimal control requirements. The only controls are stop and start,' as the feeder stay will function properly once the machine is set up.

Feeder Control Applications:

The Electromagnetic Vibratory Feeder is normally part of a manufacturing line, and the product flows from it to another equipment in the line. This is why the machine is equipped with sensors.

Because some machines can only process a certain amount of product, the sensors will signal the feeder when to stop discharging goods and when to restart.

Variable Speed Control:

To modify the speed of the product, an inverter can be utilized to adjust the frequencies of the feeder tray. The product will be digested faster if the vibrations and hops are higher. However, this kind of control has limited applications because the machine is set up to operate at a specific set of frequencies, and changing these with an inverter may diminish the vibratory process' effectiveness.

Other Components

The following are some of the machine's additional components:

Feed End: The feed end of the machine is where the materials are fed into the tray.

The discharge end is located on the machine's downstream side, opposite the feed end. It is the side of the tray from which the material is expelled. It can also be linked to other equipment in a manufacturing line.

Jaykrishna Magnetics Pvt. Ltd. produces magnetic, vibratory, electromagnetic, and mineral processing equipment. Our equipment, including our Electromagnetic Vibratory Feeders, is built to be strong, durable, and long-lasting.