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The artificial material is suspended from the crane by the whole bundle on the storage rack (the fork of the baling device is in the vertical position). Manually connect the two-position five-way solenoid valve, the piston rod of the cylinder shrinks, and the fork rod rotates. When it is in position, the bundle is opened, and the heated steel pipe will automatically roll to the feeding mechanism of the separation mechanism. Once there is no material, no The material detection switch sends a signal. Under the control of the control system, the separating mechanism sends the materials one by one according to the beat, and rolls to the end to position. The feed detection switch receives the signal, and the loading and unloading translation mechanism works. First, the lifting cylinder is jacked up, after the steel pipe is in place, a signal is sent, the piston rod of the translation cylinder is extended, the material is translated to the center of the two rollers, and the signal is given, and the piston rod of the translation cylinder is contracted into position. The loading and lowering translation mechanism returns to the original position and waits for the next instruction.
The double roller drive system is divided into three zones, namely the feed zone, the heating zone and the discharge zone. There are 12 sets of double-drum drive system in the feeding area. There are 14 sets of double-duck drive system in the heating zone. There are 12 sets of double-duck drive system in the discharge area, totaling 38 sets. Each zone is equipped with a set of frequency converters and a motor with an adjustable angle. The steel pipe is controlled by the feeding rod to make the steel tubes meet end to end. When the end of the steel pipe is about to leave the front port of the first heating furnace, if there is no material, the feed detection switch will send a signal and the separation mechanism will work once. If the clamp (the steel pipe is stationary), the feed detection switch will give an alarm signal.
The speed of the double-stick transmission system in the heating zone is a predetermined value according to the specifications of the steel pipe. When the steel pipe passes through the first set of inductors (750KW), the temperature of the steel pipe should be heated to about 500 °C (the infrared thermometer is provided here) When the steel pipe enters the 100KW inductor, the temperature of the steel pipe should be heated to 930 °C (the infrared thermometer is installed here), the steel pipe enters the water spray area, the spray in-position detection switch is opened, and then the spray area is entered. The spray in-position detection switch is turned on, and then enters the spray drying zone, the spray dry zone in-position detection switch is turned on, and finally enters the tempering sensor (750Kw), and the infrared thermometer is also provided at the exit of the tempering sensor, and finally the inspection is performed. The tempering temperature of the steel pipe.
The speed of the double-stick transmission system in the discharge area is consistent with the transmission speed of the heating zone, but when the tail end of the steel pipe is about to leave the last set of double-bars in the heating zone, the discharge detection switch sends a signal, and the double-stick in the discharge zone The transmission speed is increased, the heating steel pipe is quickly pulled out, the distance between the first and last steel pipes is pulled apart, and finally the steel pipe is blocked by the material blocking mechanism, and a signal is sent, and the discharge lifting and lowering mechanism works.
When the discharge lifting and lowering mechanism receives the signal, firstly, the piston rod of the lifting cylinder is contracted, and the feeding mechanism simultaneously lifts the steel pipe after the tempering. After the position, the piston of the translation cylinder is extended to reach the end point (ie, the position of the two-way cooling bed). The cold bed dragging device and the rotating device automatically stop working at the same time. When the discharging lifting and lowering mechanism smoothly puts down the material, the two-way cooling bed is restarted. The discharge lifting and lowering mechanism returns to the original position and waits for the next instruction.
The working condition of the steel pipe in the two-way cooling bed is: stepping and rotating. When the step reaches the end point, the steel pipe rolls onto the collecting gantry (when the temperature of the steel pipe ≤ 150 ° C) is blocked by the hardness device fork. If hardness is required, it can be manually performed. After the hardness is completed, the two-position five-way electromagnetic is turned on, the pneumatic piston rod contracts, and the steel tube rolls to the end of the collecting stand and is stopped. After the material is full, it will be tied up by hand and continue to the next process.
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