Threaded steel rolling mill guide

Abstract

The invention relates to the technical field of rolling mill guides and guards, in particular to a deformed steel bar rolling mill guide and guard which comprises a guide and guard shell, inner side plates are movably installed on the inner side walls of the two sides of the guide and guard shell, hydraulic cylinders are installed outside the guide and guard shell, and hydraulic rods are arranged on the sides, close to the inner side plates, of the hydraulic cylinders; the connecting assembly comprises a connecting strip, a clamping seat, two sets of limiting gear pieces and two sets of limiting racks, the connecting strip is fixedly connected to one end of the hydraulic rod, the clamping seat is fixedly connected to one side of the inner side plate, the two sets of limiting gear pieces are meshed with the two sides of the connecting strip, and the two sets of limiting gear pieces are meshed with the two sides of the connecting strip. The two sets of limiting racks are engaged with the sides, away from the connecting strip, of the two sets of limiting gear pieces correspondingly. Compared with the prior art, narrowing adjustment of the channel in the guide and guard shell can be achieved, the adjusted hydraulic rod can be separated from the inner side plate, impact of deformed steel bars on the hydraulic rod in the conveying process is avoided, and the service life of the hydraulic cylinder is prolonged.

Description

technical field [0001] The invention relates to the technical field of rolling mill guides, in particular to a thread steel rolling mill guide. Background technique [0002] Guide refers to the device installed before and after the roll pass to help the rolling piece enter and export the roll pass accurately and stably according to the established direction and state during the rolling process of the section steel. Generally speaking, the guide is divided into rolling guide. Compared with the sliding guide, the rolling guide is more stable, and the distance between the guide rollers can be easily adjusted, but the cost is higher, while the sliding guide costs less, but the stability is not as good as the rolling guide, and it is not easy to adjust. [0003] At present, in order to meet the needs of the centering and conveying of rebar rolling pieces of different sizes, it is necessary to adjust the size of the inner channel of the guide. In the prior art, hydraulic cylinders...

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Problems solved by technology

[0002] The guide refers to the device installed before and after the roll pass to help the rolled piece enter and exit the roll pass accurately and stably according to the predetermined direction and state during the section steel rolling process. Generally speaking, the guide is divided into rolling guides. Compared with the sliding guide, the rolling guide is more stable, and the distance between the guide rollers can be easily adjusted, but the cost is higher, while the sliding guide is lower in cost, but the stability is not as good as the rolling guide, and it is not easy to adjust

[0003] At present, in order to meet the centering and conveying requirements of different sizes of rebar rolled pieces, it is necessary to adjust the size of the inner channel of the guide adaptively. In the prior art, a hydraulic cylinder is often used to drive the inner plate of the guide to move, but the rebar rolling During the conveying process, the parts will have a certain impact on the contact plate with the side plate, and the hydraulic rod of the hydraulic cylinder will resist the impact force to avoid the displacement of the side plate, but it will affect the damage of the hydraulic rod and even the hydraulic cylinder after long-term use. Reduce the service life of the hydraulic cylinder, resulting in an increase in production costs, for this reason, the present invention proposes a threaded steel rolling mill guide that can solve the above problems

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