直进式拉丝机的工作原理 Working principle of direct-inlet wire drawing machine

直进拉丝机厂家金属制品是冶金工业中的重要一环，但在我国该职业却是一个薄弱环节，机械、电气设备陈旧，阻碍了职业的开展。直进式拉丝机在金属加工中，直进式拉丝机是常见的一种，在以前一般都选用直流发电机－电动机组（F-D体系）来完成，现在跟着工艺技术的前进和变频器的很多普及，变频操控开始在直进式拉丝机中很多使用，并可通过PLC来完成拉拔种类设定、操作主动化、生产过程操控、实时闭环操控、主动计米等功用。

Metal products of direct-entry wire drawing machine manufacturers are an important part of the metallurgical industry. But in my country, this occupation is weak and for mechanical, electrical equipment is not as advanced which affected the growth in development of this occupation. In metal processing, direct-in-type wire drawing machine is a common type. In the past, DC generator-electric unit (F-D system) was generally used. Now, with the advancement of process technology and the popularization of inverters, frequency conversion control has begun to be used in direct-in-type wire drawing machines and the functions of draw type settings, operational activation, production process control, real-time closed-loop control, active meters measurement, etc. can be completed through PLC.

直进式拉丝机选用变频调速体系的直进式拉丝机技术先进、节能明显，调速范围在正常工作时为30:1，一起在5%的额定转速时能提供超过1.5倍的额定转矩。直进式拉丝机是拉丝机中最难操控的一种，因为它是多台电机一起对金属丝进行拉伸，作业的功率很高。不象以前经常遇到的水箱拉丝机和活套式拉丝机，允许金属丝在各道模具之间打滑。一起它对电机的同步性以及动态响应的快速性都有较高的要求。直进式拉丝机因为不锈钢资料特性比较脆，缺少像高碳钢丝或许钢帘线那样的耐性，比较简单在作业过程中拉断。本体系共有8台11KW变频器。体系的电气配置为活套一台，装置在第一级，作用是将成卷的不锈钢丝牵引到拉丝部分，因为活套能够自由打滑，因此这台电机不需要特别的操控。

The direct-in-type wire drawing machine uses a variable frequency speed control system with advanced technology and energy saving. The speed regulation range is 30:1 during normal operation and can provide more than 1.5 times the rated torque at 5% of the rated speed. The direct-in wire drawing machine is the most difficult to operate in wire drawing machines because it stretches the wire together with multiple motors and the operational power is very high. Unlike the water tank wire drawing machines and lid-cover wire drawing machines that were often encountered before when metal wires are allowed to slip between the moulds. Together, it has high requirements for the synchronization of the motor and the rapidity of dynamic response. Because the stainless steel data characteristics are easy to brittle, the straight-in wire drawing machine lacks the resistance like high-carbon steel wire or steel cord which is relatively simple topull out during operation. There are 8 11KW frequency converters in this system. The electrical configuration of the system is a lid sleeve. The device is at the first level so its function to pull the coiled stainless steel wire to the wire drawing machine. Since the lid sleeve can slip freely so the motor does not require special control.