MK8 Electromagnetic Hopper Magnetic Drive Clutch Cigarette Machine
Parts
Electromagnetic Clutch:
Electromagnetic clutch is a electronic component of cigarette
making/packing machines that operates electrically but transmit
torque mechanically.
Electro-mechanical Clutch:
This is why they used to be referred to as electro-mechanical
clutches. Over the years, EM became known as electromagnetic versus
electro-mechanical, referring more about their actuation method
versus physical operation. Since the clutches started becoming
popular over 60 years ago, the variety of applications and clutch
designs has increased dramatically, but the basic operation remains
the same today.
Single-face clutches make up approximately 90% of all
electromagnetic clutch sales.
Function:
Electromagnetic clutches are most suitable for remote operation
since no mechanical linkages are required to control their
engagement, providing fast, smooth operation. However, because the
activation energy dissipates as heat in the electromagnetic
actuator when the clutch is engaged, there is a risk of
overheating. Consequently, the maximum operating temperature of the
clutch is limited by the temperature rating of the insulation of
the electromagnet. This is a major limitation. Another disadvantage
is higher initial cost.
Engagement:
When the clutch is actuated, current flows through the
electromagnet producing a magnetic field. The rotor portion of the
clutch becomes magnetized and sets up a magnetic loop that attracts
the armature. The armature is pulled against the rotor and a
frictional force is generated at contact. Within a relatively short
time, the load is accelerated to match the speed of the rotor,
thereby engaging the armature and the output hub of the clutch. In
most instances, the rotor is constantly rotating with the input all
the time.
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