Design of High Precision Online Sizing Cutter for PC Steel Bars

Abstract:

Along with the development of high-rise buildings and high-speed railways, the straightness and sizing accuracy of PC steel bars is highly demanded. The addition of precision straightening process between traction and shear in the production line of PC steel bars can improve the application performance of products effectively. Moreover, the traditional shear mode is changed to realize high precision sizing and cutting purpose in high-speed production (90m/min). A straightening scheme with large deformation and equal curvature was proposed in this article, which can realize circumferential standstill locking of bars in the perpendicular straightening planes and guarantee straightening precision. Based on mechanical-electro-hydraulic integration technology, optical-mechanical-electrical sizing and conjugate cam cutting method were presented. 9/13 numerical control sizing cutter for PC steel bars is developed in the production line of PC steel bars, which has high automation, better straightening effect, and minor sizing error.

• Periodical: Advanced Materials Research (Volume 746)
• Pages: 520-523
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.746.520
• Online since: August 2013
• Authors: Xue Yan Han, Kang Liu, He Rong Jin
• Keywords: Conjugate Cam, PC Steel Bars, Sizing Shear, Three-Roll Standstill Locking

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