The composition of automatic uncoiler and its automatic speed control principle
The fully automatic decoiler includes a machine base, a chain transmission device, an expansion and contraction material receiving device, a photoelectric sensor switch and a frequency converter electric control box. The chain transmission device is installed in the machine base, the motor is installed on the machine base, the motor is connected to the chain transmission device, the chain transmission device is connected to the expansion and contraction material receiving device, and the expansion and contraction material receiving device is provided with a supporting tile plate and a supporting material The tile plate is arranged outside the machine base and the standard weight scale of the rolled plate is arranged on the supporting tile plate.
The standard weight scale of the coil plate is an annular groove. The annular groove is manually measured the outer diameter of the coil plate with a standard weight value, and then an annular circular groove of the same size as the diameter is processed on the supporting tile plate. The photoelectric sensor switch is installed in the annular groove, the photoelectric sensor switch is connected with the frequency converter, the frequency converter is connected with the motor, and the motor is fixedly installed on the top of the machine base.
In the actual application process of the decoiler, the operator installs and fixes the coil to be processed on the supporting tile plate, and starts the frequency converter and the photoelectric sensor switch; the frequency converter controls the motor to rotate, and the motor drives the gear in the chain transmission to rotate, and the gear drives the expansion The shrinkage bearing device rotates, and the expansion-shrinkage bearing device drives the supporting tile plate mounted on it to rotate, and the rolling plate rotates with the supporting tile plate.
When the roll plate of the unwinding machine's supporting tile board covers the photoelectric sensor switch, the photoelectric sensor switch sends a signal to the frequency converter. After the frequency converter receives the electrical signal, the motor is controlled to rotate slowly and slowly. Unwinding slowly and smoothly ensures the processing quality of the unwinding coils in the subsequent equipment.
When the reel does not cover the photoelectric sensor switch during the unwinding process, the photoelectric sensor switch sends an electrical signal to the frequency converter. After the frequency converter receives the electrical signal, it controls the motor to accelerate to accelerate the unwinding of the reel. It guarantees the processing quality of the released coil in the subsequent equipment.