| The process flow of pipe expanding machine
The pipe expanding process of the pipe expanding machine: the washed pipe is sent to the rotating roller device on the center line of the pipe expanding machine. Using this rotating idler device, in conjunction with the camera system, the pipe weld is rotated to the 12 o 'clock position to ensure that the weld will enter the groove of the upper sector of the tool during subsequent expansion. The lifting cone roller table lifts the pipe to the center line of the tube expander, and the position is controlled by the displacement sensor in the lifting hydraulic cylinder. The clamp tube trolley moves forward and is controlled by the metal detector to detect the tail end of the tube and is clamped. At the same time, a signal is sent to start the feed roller of the clamp tube trolley. The position is controlled by the encoder. The tube length is combined with the expanding head to automatically calculate the number of expanding steps. The jaws of the clamp can be turned to avoid damaging the pipe wall. In the advance process, the height of the clamp can be adjusted to compensate the straightness deviation of the pipe and optimize the straightening effect of the expanding machine.
The tube expanding machine automatically controls the intermediate frequency power supply to heat the steel pipe to the required temperature and keep it constant during the production of tube expanding, which effectively avoids the scrap of the steel pipe and the die caused by the high temperature of the steel pipe caused by human factors, and avoids the rupture of the tie rod or the die caused by the rise of the thrust of the thermal expanding unit due to the low temperature.
The diameter of the steel pipe that can be expanded by the pipe expanding machine and the pipe expanding machine is 60mm-1420mm, the wall thickness is 3mm-120mm, and the length is 3-24mm. The company can produce the above expansion steel pipe models. Tube expanding machine can expand the inner diameter of steel pipe, expand the other end of the steel pipe, also known as the tube expanding machine. With the continuous improvement of the quality of hot expanding pipe, our factory has developed the automatic constant temperature system of domestic pipe expanding machine to ensure the quality of hot expanding pipe products.
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