Double-quick-opening wet-type withdrawal and straightening machine

Abstract

The invention discloses a double-quick-opening wet-type withdrawal and straightening machine and belongs to the technical field of steel rolling equipment. The sealing device can spray desalted water and recycle the desalted water; the roller changing trolley can simultaneously or sequentially pull out the upper bending roller box and the lower bending roller box and the straightening roller box quickly; the upper quick-opening oil cylinder and the upper lifter are fixed at the top of the rack and can drive the upper bending and straightening roll box to be quickly opened upwards; the lower quick-opening oil cylinder is installed at the bottom of the machine frame and can drive the lower quick-opening platform to quickly move up and down, and the lower lifting machine can adjust the position of the lower bending and straightening roll box. The withdrawal and straightening machine is good in sealing performance, the problem that desalted water splashes everywhere can be solved, the working environment of the withdrawal and straightening machine is improved, the desalted water can be effectively recycled and recycled, the recycling rate of the desalted water is increased, and zinc powder is prevented from being accumulated at the roller box part after falling off; the device has the function of quickly opening the upper and lower bending and straightening roll boxes at the same time, can effectively prevent welding seams of galvanized strip steel from damaging the working roll, and prolongs the service life of the working roll.

Description

technical field [0001] The invention relates to the technical field of steel rolling equipment, in particular to a double-quick-opening wet tension leveler. Background technique [0002] After rolling and heat treatment of cold-rolled strips, there are often ternary defects such as edge waves, scoops, and sickle bends. The strip is plastically deformed, and the strip remains flat after the tension is removed. However, after the cold-rolled strip is galvanized, it is rolled by a skin-pass machine, and the protruding zinc particles on the surface are rolled into flakes and attached to the surface of the strip. During the process of straightening the galvanized strip, the surface of the strip is The zinc powder will fall off and accumulate on the roll box, and the zinc powder will be transferred to the strip when the work roll sticks to it, causing bright spot defects on the strip surface and shortening the service life of the work roll. At present, the tension leveling machi...

AI Technical Summary

Problems solved by technology

At present, the wet tension leveler does not have the function of quickly opening the lower bending roll box because the desalinated water recovery device is installed at the bottom of the frame. When the strip weld passes through the tension leveler, the upper bending roll box can be opened quickly, and the strip steel The weld seam will not contact the work rolls of the upper bending roll box, but will cause some damage to the work rolls of the lower bending roll box

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