Features of automatic high-speed cold rolling mill for seamless tubes

The automatic high-speed cold rolling mill for seamless pipes consists of a feeding mechanism, a mandrel device, an alternate front and rear mandrel chuck device, a feeding bed between the chucks, an alternate feeding bed, a machine base box, a transmission device, automatic discharge mechanism and automatic motion controller control system.

The automatic high-speed cold rolling mill for seamless pipes consists of a feeding mechanism, a mandrel device, an alternate front and rear mandrel chuck device, a feeding bed between the chucks, an alternate feeding bed, a machine base box, a transmission device, automatic discharge mechanism and automatic motion controller control system.In terms of automatic feeding, automatic alternate use of chucks, automatic feeding between chucks to front and rear feeding into the bed chuck, and alternate use of jammed mother tubes.It is sent to the roll device of the stand box for automatic rolling without stopping the material. After detecting that the rolling of the pipe is completed, it is pulled out by the quick pull-out mechanism, and the material is turned into the automatic material frame to form a fully automatic cycle of rolling the pipe.


The control system is composed of the main control cabinet, the operating table and the external execution and sensing components. The main drive and the feeding and rotating device are driven by a fully closed-loop control permanent magnet servo motor.The operating table is equipped with buttons, voltage and current meters and a touch screen, in which various parameters can be adjusted and alarm information can be displayed.This control system has a wealth of fault diagnosis functions. Several fault diagnosis and alarms are set in the system. Generally, common faults can be accurately judged.Such as: stall, overcurrent, lack of power supply, unit sequence and process interlock control.It is responsible for the process automation operation of the entire unit, including the start and stop control of each system, feeding and rotation, mutual interlocking, and selection of work systems, which greatly reduces the maintenance workload of the system.

Its features:

①, This equipment can produce carbon steel pipe, bearing steel, super special body, low alloy steel, stainless steel, titanium alloy, zirconium alloy, tantalum-niobium pipe, high temperature alloy, copper-nickel alloy, copper-aluminum and various non-ferrous metals
②. The whole machine adopts the latest and simple design of the rolling process required now, which is easy to operate, reduces maintenance and is convenient for maintenance.
③. The main drive adopts permanent magnet servo motor, which saves energy, stabilizes, changes rolling tools, and adjusts the roll stand.
④. Use the hand-held pulse generator to control the position that can be stopped at will
⑤. The rotary feeding is controlled by servo motor, and the feeding amount and rotary angle can also be adjusted at will.
⑥, compared with the drawing and pulling tube, the middle drawing, cutting, pickling, heat treatment, straightening and other processes are omitted.
⑦, each pass has achieved a large reduction rate and a large correction function of the pipe wall
⑧, the inner and outer diameter and wall thickness can obtain extremely high required tolerance requirements and roughness
⑨, can obtain a high yield, there will be no material loss in the process

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