Large bar hydraulic shear front hydraulic automatic guide device

Abstract

The invention relates to a hydraulic automatic guide device before hydraulic shearing of large bars, which comprises a rotating guide wheel mechanism, a guide arm, a hydraulic cylinder, and a hydraulic cylinder base. The rotating guide wheel mechanism and the guide arm are assembled together, and the guide arm and the guide arm The hydraulic cylinder and the hydraulic cylinder are connected with the hydraulic cylinder base through the movable connection structure, and the hydraulic cylinder base is fixed on the foundation through chemical anchor bolts. The design of the whole technical scheme is ingenious and practical, which can not only make the rolled piece enter the hydraulic shear smoothly, but also enable the rolled piece to automatically move in the same direction as the shear blade moves when the hydraulic shear blade cuts. In this way, the bending caused by the interference of the rolled piece with the fixed guide device is avoided, so that the rolled piece can smoothly enter the continuous rolling mill for the production of the next process. The device can adapt to the guidance requirements of intermediate billets of various specifications and sizes, and can ensure that the continuous rolling mill always bites into the billet smoothly, which significantly improves the productivity of the continuous rolling mill, speeds up the rolling rhythm, and reduces costs and energy consumption.

Description

technical field [0001] The invention relates to a hydraulic automatic guiding mechanism, in particular to a hydraulic automatic guiding device before hydraulic shearing of large bars, and belongs to the technical field of large special steel rolling equipment. Background technique [0002] After the initial rolling of the large bar is completed by the blanking machine, in order to prevent the irregular billets from entering the continuous rolling directly to affect the quality of the product or damage the guides between the racks, hydraulic shears are usually used to cut the head and tail. , but the guide device in front of the existing hydraulic shear is a manual adjustment structure, which cannot move flexibly with the shearing movement of the hydraulic shear, and then causes the head and tail of the sheared billet to bend due to interference with the fixed guide device, making it difficult to enter The tandem rolling mill performs subsequent rolling. Because the bending ...

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Problems solved by technology

[0002] After the initial rolling of the large bar is completed by the blanking machine, in order to prevent the irregular billet from the head and tail from directly entering the continuous rolling, affecting the quality of the product or damaging the guides between the stands, it is usually necessary to cut the head and tail by hydraulic shears , but the guide device in front of the existing hydraulic shear is a manual adjustment structure, which cannot move flexibly with the shearing movement of the hydraulic shear, and then causes the head and tail of the sheared billet to bend due to interference with the fixed guide device, making it difficult to enter Continuous rolling mill for subsequent rolling

Because the bending of the billet, especially at the head, will seriously affect the bite of the continuous rolling mill, which will not only affect the production rhythm of the rolling line, but also increase the production cost, and may also damage the rolling mill's roller table baffle, roller table guard, Guides and other auxiliary equipment

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