Automatic front hydraulic guiding device for big stick hydraulic shear

Abstract

The invention relates to an automatic front hydraulic guiding device for a big stick hydraulic shear. The automatic front hydraulic guiding device for the big stick hydraulic shear comprises a rotary guiding wheel mechanism, a guiding arm, a hydraulic cylinder and a hydraulic cylinder base; the rotary guiding wheel mechanism and the guiding arm are assembled together; the guiding arm and the hydraulic cylinder and the hydraulic cylinder and the hydraulic cylinder base are connected through a flexible connecting structure; the hydraulic cylinder base is fixed on foundation through a chemical anchor bolt. The integral technical scheme is skillful and practical in design, a rolled piece which smoothly enters the hydraulic shear automatically moves in the same direction along with shear blade actions during cutting of a hydraulic shear blade, bending caused by interference between the rolled piece and a fixed guiding device is avoided, and the rolled piece can smoothly enter a continuous mill to perform production of next procedure. The automatic front hydraulic guiding device for the big stick hydraulic shear is suitable for guiding requirements of middle square billets in various sizes, the continuous mill is guaranteed smoothly clamping blanks all the time, the production efficiency of the continuous mill is obviously improved, the milling pace is quickened, and costs and energy consumption are reduced.

Description

[0001] technical field [0002] 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 [0003] 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...

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Problems solved by technology

[0003] 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 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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