A tension auxiliary control system and method for a recoiling unit

Abstract

The invention provides a tension supplementary controlled system and method for a recoiling machine set. The tension supplementary controlled system comprises an import tension pinch roll and an export tension pinch roll, the import tension pinch roll and the export tension pinch roll are arranged on the production lone of the recoiling machine set, the import tension pinch roll and the export tension pinch roll are driven by a hydraulic cylinder, the hydraulic cylinder is connected with a proportional pressure-reducing valve to adjust pressing force, the import tension pinch roll is arranged between an import shear and a welding machine of the recoiling machine set or between the welding machine and an inspection station of the recoiling machine set, the export tension pinch roll is arranged between an export shear and a rolling cutting shear of the recoiling machine set, and a strip steel closes the import tension pinch roll and the export tension pinch roll to provide tension in the threading and drifting processes. The tension supplementary controlled system and method for the recoiling machine set are simple and reasonable in configuration and perfect in functions, and the qualified rate of recoiling machine set products is improved.

Description

technical field [0001] The invention belongs to the technical field of various recoiling units in post-process production of a cold rolling factory, and in particular relates to a tension auxiliary control system and method of a recoiling unit. Background technique [0002] In the cold rolling factory, various forms of recoiling units are usually built downstream of the annealing unit and the coating unit. These recoiling units generally have the functions of coiling, trimming, splitting, inspection, oiling, straightening and even splicing; generally, entrance cross-cutting shears are installed near the uncoiler to facilitate the removal of strip head and tail defects. etc.; the outlet cross-cutting shears are arranged near the coiler, which is convenient for strip sampling and coiling. When the unit is in normal production, the strip steel will not touch the auxiliary equipment such as the guide plate table and belt conveyor below it under the action of a large unit tensio...

AI Technical Summary

Problems solved by technology

When the unit is in normal production, the strip steel will not touch the auxiliary equipment such as the guide plate table and belt conveyor below it under the action of a large unit tension, and the surface quality of the strip steel will not be damaged, but the strip head does not reach the coil. When the machine is taken out or the strip tail has left the uncoiler, the exit section or entry section of the unit will lose tension, causing the head and tail of the strip to contact auxiliary equipment such as guide table and belt conveyor during strip threading and tail flicking, resulting in damage to the strip surface

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