辊模在冷拉弹簧钢丝上应用 Roller die mould applied on cold-pulled spring wire

直径5.5mm或6.5mm弹簧钢盘条经砂带机除锈后，通过主动放线架+多道次（8-12）直进辊模拉丝生产线（卷筒560mm、500mm、450mm）+收线机，结构简单紧凑，拉拔速度达10m/s，钢丝圈径良好，强度满足床用弹簧钢丝标准要求，钢丝综合性能比常规拉拔要好，产品合格率达96%以上；滚动摩擦取代滑动摩擦，能耗大幅度降低，初道和最后道次使用拉丝模拉拔，中间道次采用辊模转动挤压，辊模配套油循环冷却，少拉丝粉，现场干净卫生，减碳降耗，保障职工身体健康。

After the anti-rust process of 5.5mm or 6.5mm spring steel coil strips then is removed from the belt machine. They are automatically placed on the wire rack will be feed in multi-times (8-12) straight-in roller die wire drawing production line (reel 560mm, 500mm, 450mm) out to the wire collector. The structure is simple and compact, the pulling speed rate is 10m/s. If the wire ring diameter is stable, it could meet the quality standards of spring wire used in beds . The comprehensive performance of the wire is better than conventional pulling method and the product successful pass rate is more than 96%. Rolling friction method replaces sliding friction method because less energy is consumed.

The beginning and last trails are drawn using wire drawing die and for the middle trails are drawn by rotation and extruded pressure. As the roller die is equipped with oil cooling mechanism with  less drawing powder consumed, creates a clean and hygienic atmosphere on site, reducing carbon and reduce consumption. This ensure health of working employees.