Deviation correcting device for hot rolling unit

Abstract

The utility model relates to the technical field of strip steel production, in particular to a deviation rectifying device for a hot rolling unit, which comprises a controller and a main frame, a position detection sensor is arranged on the main frame, and a support frame is slidably arranged on the main frame along the vertical direction of the horizontal conveying direction of strip steel. A lower carrier roller and an upper pressing roller are oppositely arranged in the supporting frame up and down, and a gap between the lower carrier roller and the upper pressing roller is matched with the thickness of strip steel; a first driving mechanism is arranged on the main rack, and the first driving mechanism is in transmission connection with the supporting frame and used for driving the supporting frame to slide on the main rack. When the controller detects that the strip steel deviates through the position detection sensor, the controller controls the supporting frame to move in the direction opposite to the deviation direction through the first driving mechanism, and therefore under the clamping action of the lower carrier roller and the upper pressing roller, the deviated strip steel is brought back to the correct position, and automatic deviation correction is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to strip steel production technical field, and specifically is a kind of deviation rectifying device for hot rolling unit. BACKGROUND

[0002] ESP (Endless Strip Production) technology as a kind of efficient hot rolling process, can significantly shorten process flow, improve strip surface quality. However, between the tunnel furnace outlet and the finishing descaling section (rough scale), strip is in high-speed running and tensionless movement state, is extremely vulnerable to temperature gradient, roll parallelism error and tension fluctuation, and thus deviates.

[0003] At present, mainly rely on manual adjustment finishing roll gap to maintain rolling stability. However, manual adjustment is highly dependent on the experience and skill level of operator, and it is difficult to ensure the timeliness and ideality of each adjustment. At the same time, strip deviation will also aggravate equipment wear and tear, damage critical components, and thus increase maintenance cost and downtime, reduce production efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a kind of deviation rectifying device for hot rolling unit.

[0005] The utility model solves the technical scheme that its technical problem is:

[0006] A kind of deviation rectifying device for hot rolling unit, including controller, mainframe, position detection sensor is arranged on mainframe, support frame is slidably arranged on mainframe and along the vertical direction of strip horizontal conveying direction, lower roll and upper compression roller are oppositely arranged in support frame, the gap between lower roll and upper compression roller is adapted to strip thickness;First drive mechanism is provided on mainframe, and first drive mechanism is transmissionally connected with support frame for driving support frame to slide on mainframe.

[0007] The utility model with the above technical scheme compared with prior art, its outstanding features are:

[0008] When controller detects that strip deviates by position detection sensor, controller controls support frame to move to the reverse direction of deviation direction by first drive mechanism, so that, under the clamping action of lower roll and upper compression roller, deviated strip is brought back to correct position, and automatic deviation rectification is realized.

[0009] As preferred, the further technical scheme of the utility model is:

[0010] Preferably, the first driving mechanism comprises a bearing platform arranged on the main frame, a driving motor arranged on the bearing platform, a driving gear arranged on an output shaft of the driving motor, and a driving rack arranged on the support frame and engaged with the driving gear.

[0011] Preferably, the upper compression roller is vertically slidably arranged in the support frame, and a second driving mechanism is arranged between the upper compression roller and the support frame and used for driving the upper compression roller to vertically displace so as to adjust the gap between the upper compression roller and the lower supporting roller.

[0012] Preferably, the second driving mechanism comprises a lifting cylinder with a cylinder end hinged to the support frame and a connecting lug hinged to an end of a piston rod of the lifting cylinder and fixed to the upper compression roller.

[0013] Preferably, the main frame and the support frame are slidably matched through a slide rail arranged on the main frame and a slide block arranged on the support frame.

[0014] Preferably, the support frame and the upper compression roller are slidably matched through a slide rail arranged on the support frame and a slide block arranged on the upper compression roller. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic of the deviation rectifying device for the hot rolling mill unit in the embodiment of the present application Figure One ;

[0016] Figure 2 is a structure schematic of the deviation rectifying device for the hot rolling mill unit in the embodiment of the present application Figure Two ;

[0017] Figure 3 is a structure schematic of the deviation rectifying device for the hot rolling mill unit in the embodiment of the present application Figure Three ;

[0018] Figure 4 is a structure schematic of the support frame part in the embodiment of the present application Figure One ;

[0019] Figure 5 is a structure schematic of the support frame part in the embodiment of the present application Figure Two ;

[0020] Figure 6 is a structure schematic of the support frame part in the embodiment of the present application Figure Three .

[0021] Explanation of reference signs: 1, main rack; 2, position detection sensor; 3, strip steel; 4, support frame; 5, lower supporting roller; 6, upper pressing roller; 7, first driving mechanism; 8, bearing platform; 9, driving motor; 10, driving gear; 11, driving rack; 12, second driving mechanism; 13, lifting cylinder; 14, connecting lug plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in combination with specific embodiments, and the purpose is only to better understand the content of the utility model, therefore, the example does not limit the protection scope of the utility model.

[0023] As Figures 1 to 6 shown, the embodiment gives a kind of deviation rectifying device for hot rolling unit, including controller, main rack 1, position detection sensor 2 is arranged on main rack 1, support frame 4 is slidably arranged on the vertical direction of main rack 1 and along the horizontal conveying direction of strip steel 3, support frame 4 is oppositely arranged with lower supporting roller 5 and upper pressing roller 6 in up and down, and the gap between lower supporting roller 5 and upper pressing roller 6 is adapted to the thickness of strip steel 4;First driving mechanism 7 is arranged on main rack 1, and first driving mechanism 7 is drivingly connected with support frame 4 for driving support frame 4 to slide on main rack 1.

[0024] In implementation, controller can adopt PLC controller, DCS controller etc.;Position detection sensor 2 can adopt photoelectric sensor, such as Zhongchuan photoelectricity RLK198CCD;Ultrasonic sensor, such as German Baiguofu UC4000-L2-U-V15;So that the position of strip steel 3 is positioned, whether deviation occurs is detected;When controller detects that strip steel 3 deviates by position detection sensor 2, controller controls support frame 4 to move to the opposite direction of deviation direction by first driving mechanism 7, so that deviated strip steel 3 is brought back to correct position under the clamping action of lower supporting roller 5 and upper pressing roller 6, and automatic deviation rectification is realized.

[0025] In implementation, first driving mechanism 7 includes bearing platform 8 arranged on main rack 1, driving motor 9 is arranged on bearing platform 8, driving gear 10 is arranged on the output shaft of driving motor 9, and driving rack 11 is arranged on support frame 4 and is drivingly engaged with driving gear 10.

[0026] In implementation, upper pressing roller 6 is vertically slidably arranged in support frame 4, and second driving mechanism 12 is arranged between upper pressing roller 6 and support frame 4, and second driving mechanism 12 is used to drive the vertical displacement of upper pressing roller 6, so as to adjust the gap between upper pressing roller 6 and lower supporting roller 5, to achieve the purpose of adjusting the clamping force of clamping strip steel 3.

[0027] In the embodiment, the second driving mechanism 12 comprises a lifting cylinder 13 hinged to the support frame 4 at the end of the cylinder body, and the end of the piston rod of the lifting cylinder 13 is hinged to a connecting lug 14 fixed to the upper press roller 6.

[0028] In the embodiment, the main frame 1 and the support frame 4 are slidably connected through the slide rail arranged on the main frame 1 and the slide block arranged on the support frame 4.

[0029] In the embodiment, the support frame 4 and the upper press roller 6 are slidably connected through the slide rail arranged on the support frame 4 and the slide block arranged on the upper press roller 6.

[0030] The above merely describes the preferred embodiments of the present application, but not to limit the scope of the present application, any equivalent changes made according to the content of the present application and the drawings are included in the scope of the present application.

Claims

1. A deviation correcting device for a hot rolling mill train, comprising a controller, a main frame, a position detecting sensor provided on the main frame, characterized in that, The support frame is arranged on the main frame and slides in the vertical direction along the horizontal conveying direction of the strip steel, the lower supporting roller and the upper pressing roller are oppositely arranged in the support frame, the gap between the lower supporting roller and the upper pressing roller is matched with the thickness of the strip steel, and the first driving mechanism is arranged on the main frame and is in transmission connection with the support frame for driving the support frame to slide on the main frame.

2. The deviation rectifying device for a hot rolling mill train according to claim 1, characterized in that, The first driving mechanism comprises a bearing platform arranged on the main frame, a driving motor arranged on the bearing platform, a driving gear arranged on the output shaft of the driving motor, and a driving rack arranged on the support frame and in mesh transmission with the driving gear.

3. The deviation rectifying device for a hot rolling mill according to claim 1, characterized in that, The upper pressing roller is vertically arranged in the support frame, and the second driving mechanism is arranged between the upper pressing roller and the support frame for driving the vertical displacement of the upper pressing roller so as to adjust the gap between the upper pressing roller and the lower supporting roller.

4. The deviation rectifying device for a hot rolling mill according to claim 1, characterized in that, The second driving mechanism comprises a lifting cylinder hinged to the support frame at the end of the cylinder body, a connecting lug hinged to the end of the piston rod of the lifting cylinder, and the upper pressing roller fixed to the connecting lug.

5. The deviation rectifying device for a hot rolling mill according to claim 1, characterized in that, The main frame and the support frame are in sliding fit through the sliding rail arranged on the main frame and the sliding block arranged on the support frame.

6. The deviation rectifying device for a hot rolling mill according to claim 1, characterized in that, The support frame and the upper pressing roller are in sliding fit through the sliding rail arranged on the support frame and the sliding block arranged on the upper pressing roller.

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