Electromagnetic vibrating feeder is a relatively complete elastic system of double-particle directional forced vibration. The whole system works in a low critical resonance state. It mainly uses an electromagnetic exciter to drive the trough to vibrate back and forth at a certain inclination angle to move the material along the trough. Since the coil flows with a unidirectional pulsating current after half-wave rectification, the electromagnet generates a corresponding pulse electromagnetic force. In the positive half cycle of the alternating current, the pulsating current flows through the coil, generating a pulsating electromagnetic suction force between the iron core and the armature, causing the trough to move backward, and the main spring of the exciter is deformed to store potential energy; in the negative half cycle, no current flows through the coil, the electromagnetic force disappears, and the armature is separated from the electromagnet under the action of the spring force, causing the trough to move forward, so that the trough continuously reciprocates at the frequency of the AC power supply.
Electromagnetic vibrator: The core component of the electromagnetic vibrating feeder is the electromagnetic vibrator. Electromagnetic vibrator consists of electromagnetic coil and iron core. When current passes through, the electromagnetic coil will generate magnetic field, which makes the iron core attracted or repelled, thus generating vibration.
Start: When the electromagnetic vibrator is powered on, a magnetic field is generated in the electromagnetic coil, activating the vibrator.
Vibration: The change of magnetic field makes the iron core produce periodic attraction and repulsion movement, thereby driving the vibrator to vibrate.
Conveying materials: The vibrator transmits vibration to the feed trough or conveying trough, so that the material produces continuous and uniform vibration in the trough, thereby realizing the conveying of materials.
1. Small amplitude of 1.5-3mm, high vibration frequency, up to 3000 times/min, can instantly change and open and close the material flow, and has high feeding accuracy.
2. The material in the feed trough is continuously thrown up during the feeding process and jumps forward along the trajectory of the parabola. Therefore, the wear of the feed trough is small.
3. The resonance principle of mechanical vibration is applied, and the dual mass works in a low critical near-resonance state, so it consumes less electricity.
4. The feed amount can be adjusted remotely from the control box without an external frequency converter, and it can be frequently started and continuously operated under rated voltage and amplitude conditions.
5. The trough made of alloy steel plate can be used to transport materials that are severely worn or corrosive.
Electromagnetic vibrating feeder can feed block, granular and powdery materials from the storage warehouse or funnel to the receiving device evenly, continuously or quantitatively, and can adjust the feed amount steplessly, and realize centralized control and automatic control of the production process. It is small in size, light in weight, easy to install, has no rotating parts, does not require lubrication, is easy to maintain, has a high operating frequency, and consumes less electricity. It is widely used in mining, metallurgy, coal, light industry, electricity, machinery, food and other industries.
Electromagnetic vibrating feeder is a kind of equipment commonly used for conveying and feeding granular materials. It realizes continuous and uniform conveying of materials through the principle of electromagnetic vibration. Its price depends on many factors, including brand, model, specification, manufacturer, market supply and demand, etc.
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