Device for stably passing hot-rolled strip steel

Abstract

The utility model relates to a device for stably passing hot-rolled strip steel, and belongs to the technical field of rolling processes and production equipment. According to the technical scheme, an outlet guide trolley (3) is arranged between an outlet of the strip steel rolling mill and a layer cooling roller bed (1), an outlet guide plate (4) and an outlet guide transition plate (5) are arranged on the outlet guide trolley through a first hinged shaft (11) and a second hinged shaft (12) respectively, the outlet guide plate is close to a roller (2) of the strip steel rolling mill, and the outlet guide transition plate is close to the layer cooling roller bed. A composite wear-resistant plate (6) is fixed on the upper surface of the outlet guide transition plate through a fixing screw (9); and the outlet guide plate is flush with the upper surface of the composite wear-resistant plate. The utility model has the beneficial effects that the coincidence stability principle is adopted, the composite wear-resisting plate is additionally arranged, and the outlet guide plate is flush with the upper surface of the composite wear-resisting plate, so that the durability is improved, the phenomena of unstable steel passing and collision are avoided, the sign of scratches of strip steel is avoided, the extra consumption of production equipment is reduced, and the production quality rate of the strip steel is improved.

Description

Technical Field

[0001] The utility model relates to a device for stably passing hot-rolled strip steel, belonging to the technical field of rolling technology and production equipment. Background Art

[0002] During the strip rolling process, in the finishing roller area, because the strip is thin, especially when rolling strip below 3.5 mm, the rollers are far away from the dense rollers, and the rolled strip will sink during the steel feeding process, which will cause the lower surface of the strip to rub against the exit guide transition plate, resulting in unstable steel feeding and scratches on the lower surface of the strip, affecting product quality and causing additional equipment losses. Utility Model Content

[0003] The utility model aims to provide a device for smooth steel passing of hot-rolled strip, avoid scratches, reduce the extra consumption of production equipment, improve the production quality rate of strip steel, and solve the above-mentioned technical problems existing in the prior art.

[0004] The technical solution of the utility model is:

[0005] A device for smooth steel passing of hot-rolled strip comprises a layer cold roller, an exit guide trolley, an exit guide plate, an exit guide transition plate and a composite wear-resistant plate. An exit guide trolley is arranged between the strip mill exit and the layer cold roller, and an exit guide plate and an exit guide transition plate are respectively arranged on the exit guide trolley through hinge shaft one and hinge shaft two, the exit guide plate is close to the roller of the strip mill, and the exit guide transition plate is close to the layer cold roller, and the composite wear-resistant plate is fixed to the upper surface of the exit guide transition plate by fixing screws; the upper surfaces of the exit guide plate and the composite wear-resistant plate are flush.

[0006] The strip steel rolling mill comprises a frame and upper and lower matching rollers, and the outlet guide plate is closely attached to the roll gap of the strip steel rolling mill.

[0007] The frame is provided with a slideway, and the exit guide trolley is arranged on the slideway. The exit guide trolley is provided with a hydraulic cylinder. The exit guide trolley is pulled in and out by the hydraulic cylinder, which is convenient for operation when changing rolls. When the exit guide trolley is pulled out for roller change, the exit guide plate and the exit guide transition plate are rotated and lifted upward by hinge shafts 1 and 2 to make room for the exit guide trolley to withdraw. There is no gap between the exit guide plate and the roller, which prevents the rolled strip from sinking during the steel conveying process. The total length of the exit guide plate and the exit guide transition plate is one meter, so that the strip is introduced into the cold roller.

[0008] The beneficial effects of the utility model are as follows: the principle of overlapping stability is adopted and a composite wear-resistant plate is added. The upper surfaces of the outlet guide plate and the composite wear-resistant plate are flush, which increases durability. There will be no instability and impact during steel passing, and there will be no signs of scratches on the strip steel. The additional consumption of production equipment is reduced, and the production quality rate of the strip steel is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the composite wear-resistant plate of the utility model;

[0011] In the figure: layer cold roller 1, rolling roller 2, exit guide trolley 3, exit guide plate 4, exit guide transition plate 5, composite wear-resistant plate 6, strip steel 7, hydraulic cylinder 8, fixing screw 9, frame 10, hinge shaft 1 11, hinge shaft 2 12, slideway 13. DETAILED DESCRIPTION

[0012] The present invention will be further described below in detail through embodiments in conjunction with the accompanying drawings.

[0013] A device for smooth steel passing of hot-rolled strip comprises a layer cold roller 1, an exit guide trolley 3, an exit guide plate 4, an exit guide transition plate 5 and a composite wear-resistant plate 6. An exit guide trolley 3 is provided between the strip mill exit and the layer cold roller 1. The exit guide trolley 3 is provided with an exit guide plate 4 and an exit guide transition plate 5 respectively through hinge shaft 11 and hinge shaft 2 12. The exit guide plate 4 is close to the roller 2 of the strip mill, and the exit guide transition plate 5 is close to the layer cold roller 1. The upper surface of the exit guide transition plate 5 is fixed with the composite wear-resistant plate 6 by fixing screws 9; the upper surfaces of the exit guide plate 4 and the composite wear-resistant plate 6 are flush.

[0014] The strip mill comprises a frame 10 and upper and lower matching rolls 2, and an exit guide plate 4 is close to the roll gap of the strip mill.

[0015] The frame 10 is provided with a slideway 13, on which the exit guide trolley 3 is arranged, and the exit guide trolley 3 is provided with a hydraulic cylinder 8; the exit guide trolley 3 is pulled in and out by the hydraulic cylinder 8, which is convenient for operation when changing rolls. When the exit guide trolley 3 is pulled out by changing rolls, the exit guide plate 4 and the exit guide transition plate 5 are rotated and lifted upward by hinge shafts 1 and 2 to make room for the exit guide trolley 3 to withdraw, and there is no gap between the exit guide plate 4 and the rolls, so as to prevent the rolled strip from sinking during the steel conveying process. The total length of the exit guide plate 4 and the exit guide transition plate 5 is one meter, so that the strip is introduced into the cold roller.

[0016] The composite wear-resistant plates 6 are multiple and are arranged parallel to each other and at intervals on the upper surface of the outlet guide transition plate 5 .

[0017] The material of the outlet guide transition plate 5 is Q235 steel plate, and the material of the composite wear-resistant plate 6 is a wear-resistant composite material known and used in the art. The composite wear-resistant plate 6 protects the surface of the strip steel 7 when rubbing against the lower surface of the strip steel 7.

Claims

1. A device for smooth steel passing of hot-rolled strip, characterized in that: The invention comprises a layer cold roller (1), an exit guide trolley (3), an exit guide plate (4), an exit guide transition plate (5) and a composite wear-resistant plate (6). An exit guide trolley (3) is provided between the strip mill exit and the layer cold roller (1). The exit guide trolley (3) is provided with an exit guide plate (4) and an exit guide transition plate (5) via a hinge shaft 1 (11) and a hinge shaft 2 (12), respectively. The exit guide plate (4) is close to the roller (2) of the strip mill, and the exit guide transition plate (5) is close to the layer cold roller (1). The composite wear-resistant plate (6) is fixed to the upper surface of the exit guide transition plate (5) via fixing screws (9); the upper surfaces of the exit guide plate (4) and the composite wear-resistant plate (6) are flush.

2. The device for smooth hot-rolled strip steel passing according to claim 1, characterized in that: The strip steel rolling mill comprises a frame (10) and upper and lower matching rolling rollers (2), and an outlet guide plate (4) is closely attached to the roll gap of the strip steel rolling mill.

3. The device for smooth hot-rolled strip steel passing according to claim 2, characterized in that: The frame (10) is provided with a slideway (13), the exit guide trolley (3) is arranged on the slideway (13), and the exit guide trolley (3) is provided with a hydraulic cylinder (8).

Images