精轧螺纹钢筋高精度自动定尺锯切线的研发与应用

Research and Application of High Precision Automatic Cut-to-length System for Precision-rolled Rebar

高强度精轧螺纹钢筋的应用范围愈来愈广,对其长度需求也越来越多样化,对精轧螺纹钢筋的锯切效率和精度提出了更高的要求。传统锯切工艺存在锯切机待料时间长,生产效率低;定尺长度不能随意设置;锯后的尾头尺寸大小不一,造成收集困难;锯切作业粉尘多,污染大;采用人工锯切存在安全隐患等缺点。研发了一种新型高强度精轧螺纹钢筋锯切线,通过伺服电机控制移动锯的水平移动,将锯切精度控制在±2mm,保证了锯切精度的连续性,提高了工作效率;新型锯切线采用自动化控制,每台主锯配备有独立的除尘系统。此外,新型锯切线设计较紧凑,占地长度减少20%,有利于减少设备投资。

With the widely use of high strength precision-rolled rebar, the need to its different lengths is get more, the more precision cut-to-length and cutting efficiency are required. The traditional cutting process has many disadvantages such as long supply delay time, low cutting efficiency, inflexible setting of lengths, difficult collection for the cut rebar ends because of their different lengths, more cutting dusts and pollution, having potential safety hazard due to manual cutting method, and so on. The developed new high strength precision-rolled rebar cutting line takes servo motor to control the horizontal movement of moving saw and adopts the positional cylinder to lock the saw out after the moving saw fixed, so the cutting accuracy can be controlled within plus or minus two millimeters, the stable cutting accuracy ensured and the working efficiency raised. The new cutting line takes the automatic control system, has no potential safety hazard due to nobody participating in the cutting course, collects cut dusts with independent dust removal system allocated for every head saw, solves the environment protection problem well and gets good results from practical use. In addition, the new cutting ling has a compact layout with 20% decrease of covering length which is good for reducing the investment.