In metal processing, the straight-type wire drawing machine is a common one. In the past, DC generator-motor units were usually used to achieve. Now with the progress of process technology and the popularization of frequency converters, the frequency conversion control is starting It is widely used in the wire drawing machine, and can realize the functions of drawing variety setting, operation automation, production process control, real-time closed-loop control, automatic meter counting, etc. through PLC. The performance advantages of Xinchuangsheng Straight Wire Drawing Machine are as follows:
1. Adopt frequency conversion speed regulation system, which has reliable technology and remarkable energy saving. The speed regulation range is 30:1 during normal operation, and it can provide more than 1.5 times of rated torque at 5% of rated speed. Straight-line wire drawing machine mainly draws stainless steel wire after finishing rolling, which is a kind of difficult to control in wire drawing machine. Because it is a multi-motor drawing metal wire at the same time, the operation efficiency is very high.
2. The metal wire slips between the molds. At the same time, it has high requirements for the synchronization of the motor and the rapidity of the dynamic response. Due to the relatively brittle nature of stainless steel materials and the lack of toughness like high carbon steel wire or steel cord, it is easier to break during operation.
3. There are six rotating drums with a diameter of 400mm in the wire drawing part. A cylinder swing arm for detecting the position is installed between each drum. The displacement sensor can detect the position of the swing arm. When the wire is pulled tight, the wire will The pressure on the cylinder of the swing arm causes the swing arm to move down.
4. The winding motor adopts a self-sliding tapered bracket, the winding diameter of the whole process is basically unchanged, so there is no need to use the winding diameter calculation function. Adopt frequency conversion special motor with mechanical brake device; the system logic control of the straight-type wire drawing machine is relatively complicated, and there are various linkage relationships, which are realized by PLC. Synchronization control is all implemented inside the TL-MD320 inverter, and does not rely on external control.
5. The problem of motor control coordination, and can reduce the position error, so that the straight-line drawing machine tuning roller has accurate positioning.
6. The cut-off signal can be used to realize the transmission of the transmission system step by step. In this way, on this wire drawing machine, any cut-off on the pass can be achieved, as well as the corresponding inspection work.
7. The active pay-out row and pay-off tension adjustment mechanism can easily realize the active pay-off of the metal wire, which can make the wire movement speed stable, and at the same time, make the wire surface smooth and not prone to breakage and other problems, thereby improving the quality of the finished product .