Pickling line scale breaking withdrawal and straightening machine

Abstract

The invention discloses a pickling line scale breaking withdrawal and straightening machine. The pickling line scale breaking withdrawal and straightening machine comprises two bending roller sets, a material roller, a straightening roller set and two dedusting devices, wherein the two bending roller sets are arranged on a machine frame, the material roller is located on the inlet side of a plate strip, the straightening roller set is located on the outlet side of the plate strip, and the two dedusting devices are arranged at an outlet of the plate strip. Two upper bending roller systems of the two bending roller sets are suspended on a cross beam of the machine frame through an A lifting mechanism oil cylinder and a B lifting mechanism oil cylinder respectively, and two lower bending roller systems of the two bending roller sets are connected with an A worm gear lead screw lift and a B worm gear lead screw lift respectively. The straightening roller set comprises a lower straightening roller system and two upper straightening rollers. The lower straightening roller system is connected with a C worm gear lead screw lift. The two upper straightening rollers and the material roller are fixed on the machine frame through bearing bases on the two ends respectively. The machine frame is a sealed machine frame with the sealed periphery. The two dedusting devices are negative pressure interfaces, wherein one end of each negative pressure interface is communicated with an inner cavity of the machine frame, the other end of each negative pressure interface is connected with a centrifugal fan, and the negative pressure interfaces are installed at the upper end and the lower end of the outlet of the plate strip respectively. The pickling line scale breaking withdrawal and straightening machine is good in scale breaking and dedusting effect, high in production efficiency, and high in quality of the surface of processed strip.

Description

technical field [0001] The invention relates to a stretching and leveling machine, in particular to a scale breaking stretching and leveling machine for pickling lines. Background technique [0002] With the advancement of science and technology, the variety of hot-dip galvanized products has increased, and higher quality requirements have been put forward for hot-rolled strips. After hot-rolling, there are scales on the surface of strip steel. To improve the efficiency of pickling, before entering the pickling tank, special equipment is often used to mechanically break scales on the strip surface (string), so that the scale on the strip surface will fall off or loosen. The existing scale-breaking tension leveling machine has some disadvantages, such as poor rigidity of the frame, inaccurate return of the roll system, inconvenient adjustment of the roll gap and cut-in, various wavy shapes of the strip, and unsatisfactory descaling effect. The removal of scale is incomplete,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor descaling effect of existing equipment and poor surface quality of strips, etc., to provide a method that can realize independent adjustment of roll gap and cut-in, and complete the precise return of the roll system, which can improve the scaling rate. Pickling line scale breaking and leveling machine with high surface quality, which can effectively remove the scale of the strip and improve the surface quality of the strip

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