Recently two years can manufacturing demands of high-speed equipments for beverage and canning industry in 3 piece cans in domestic are weakness, and hundreds of domestic tinplate suppliers, their tinplate as cheap and low quality to make a rapid growth in can manufacturing. For quality problems of tinplate in current domestic, old welding machine for using cam swing mechanism, hitting speed is slow,so first point of weld seam easy to appear sharp point,crack in flanging seaming and faulty welded etc caused waste cans, this paper focus on stability technology at transport,welding speed of copper wire and welding current,improving stability of running and quality of weld seam.%近两年国内三片罐高速饮料设备、罐头行业制罐需求疲软，而国内近百家马口铁生产厂家生产的低价低质量马口铁引爆工业制罐的高速增长。针对目前国内马口铁质量问题，传统焊机采用凸轮摆动机构，因此凸轮打罐速度偏慢，焊缝头点易出现尖点，容易产生翻边卷封裂口、虚焊等导致废品罐的问题，着重进行送罐稳定性技术、焊接铜线速度稳定性技术、焊接电流稳定性技术等多方面的研究，系统提升整机工作稳定性和焊缝质量。
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