Guide device of steel plate rolling mill

Abstract

The utility model discloses a guide device of a steel plate rolling mill, which comprises a mounting frame, a lifting component is fixed on the outer wall of one side of the mounting frame, a guide component is mounted at the bottom of the lifting component, a vertical plate is fixed on the top of the guide component, a clamping hole is formed in the surface of the vertical plate, and a second U-shaped frame is fixed on the outer wall of one side of the mounting frame. A through hole formed in one end of the second U-shaped frame is movably connected with a limiting head, one end of the limiting head is in threaded connection with a cover plate, the outer wall of the limiting head is sleeved with a spring, and the two ends of the spring are fixed to the inner wall of one side of the cover plate and the outer wall of one side of the second U-shaped frame in a welded mode. The electromagnet is arranged to attract the cover plate in a power-on state, when the clamping hole moves to the position opposite to the limiting head, after the electromagnet is powered off, the limiting head is inserted into the clamping hole under the elastic force action of the spring, and therefore the guide component is supported after the hydraulic cylinder loses efficacy; and safety accidents caused by falling of the guide part are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate rolling mill guide position, in particular to a steel plate rolling mill guide position device. Background Art

[0002] In the prior art, a steel plate rolling mill is a device that realizes the metal rolling process, generally referring to the equipment that completes the entire process of rolling production. The steel plate needs to use a guide device during the rolling process. The guide device is used to guide the direction and shape of the rolled plate and strip, eliminate the lateral deviation and warping deformation of the strip, and form a certain degree of tension on the plate and strip to ensure that the strip can pass through the rolling mill smoothly.

[0003] After searching, the Chinese patent application number 201020538561.4 discloses a guiding device for a steel plate rolling mill, which includes a guiding component and two lifting cylinders, and also includes a hydraulic locking component, which is arranged between the two cylinders, and the upper end is also fixed on the upper roller system balance beam, and the lower end is also connected to the guiding component.

[0004] The guide device of a steel plate rolling mill in the above-mentioned patent has the following shortcomings: when preventing the guide assembly from falling, the mechanism that drives the large gear and small gear transmission is a hydraulic motor. The hydraulic motor and the lifting cylinder are essentially hydraulically driven. Therefore, the hydraulic motor is also likely to fail during use, and therefore it is impossible to fundamentally prevent the guide assembly from falling. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a guide device for a steel plate rolling mill.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The guiding device of the steel plate rolling mill comprises a mounting frame, a lifting assembly is fixed to the outer wall of one side of the mounting frame, a guiding component is installed at the bottom of the lifting assembly, a vertical plate is fixed to the top of the guiding component, and a positioning hole is provided on the surface of the vertical plate, a U-shaped frame 2 is fixed to the outer wall of one side of the mounting frame, and a through hole provided at one end of the U-shaped frame 2 is movably connected to a limiting head, and a cover plate is threadedly connected to one end of the limiting head, a spring is sleeved on the outer wall of the limiting head, and both ends of the spring are fixed to the inner wall of one side of the cover plate and the outer wall of one side of the U-shaped frame 2 by welding, and a resistance plate is welded to the outer wall of the limiting head.

[0008] As a further solution of the utility model: the lifting assembly includes a hydraulic cylinder and a mounting plate, the mounting plate is welded to an outer wall of one side of the mounting frame, and the hydraulic cylinder is fixed to the top outer wall of the mounting plate.

[0009] As a further solution of the utility model: a U-shaped frame 1 is welded to an outer wall of one side of the U-shaped frame 2, and an electromagnet used in conjunction with the cover plate is fixed to an inner wall of one side of the U-shaped frame 1 by screws.

[0010] As a further solution of the utility model: an extension plate is welded to the outer wall of one side of the mounting frame, a contact switch is fixed to the bottom of the extension plate by screws, and a trigger rod used in conjunction with the contact switch is welded to the outer wall of the top of the vertical plate.

[0011] As a further solution of the utility model: a control box is fixed to the outer wall of one side of the mounting frame by screws, and the control box, the contact switch and the electromagnet are electrically connected.

[0012] As a further solution of the utility model: the inner diameter of the positioning hole is larger than the outer diameter of the limiting head.

[0013] As a further solution of the utility model: the top of the guide component is fixed to the output end of the hydraulic cylinder.

[0014] Compared with the prior art, the utility model provides a guide device for a steel plate rolling mill, which has the following beneficial effects:

[0015] 1. An electromagnet is provided to adsorb the cover plate when it is powered on. When the positioning hole moves to a position relative to the limit head, the electromagnet causes the limit head to be inserted into the positioning hole under the elastic force of the spring after power is cut off, thereby supporting the guide component after the hydraulic cylinder fails to prevent the guide component from falling and causing a safety accident.

[0016] 2. By providing a contact switch and a trigger rod, the electromagnet can be automatically powered on and off under the control of the control box, thereby realizing anti-fall protection for the guide component through automatic control.

[0017] 3. By setting the inner diameter of the positioning hole to be larger than the outer diameter of the limit head, it can be ensured that when the guide component needs to move downward and the trigger rod is disengaged from the contact switch, the positioning hole and the limit head are prevented from getting stuck, resulting in the inability to disconnect the trigger rod from the contact switch.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the installation structure of the anti-fall component of the utility model.

[0022] Figure 4 It is a schematic diagram of the main structure of the anti-fall component of the utility model.

[0023] In the figure: 1. mounting frame; 2. hydraulic cylinder; 3. mounting plate; 4. guide component; 5. U-shaped frame 1; 6. control box; 7. extension plate; 8. U-shaped frame 2; 9. positioning hole; 10. vertical plate; 11. trigger rod; 12. limit head; 13. contact plate; 14. electromagnet; 15. cover plate; 16. spring; 17. contact switch. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Embodiment 1:

[0025] The guiding device of the steel plate rolling mill, such as Figures 1 to 4 As shown, it includes a mounting frame 1, a lifting assembly is fixed to the outer wall of one side of the mounting frame 1, a guide component 4 is installed at the bottom of the lifting component, a vertical plate 10 is fixed to the top of the guide component 4 by bolts, and a locking hole 9 is opened on the surface of the vertical plate 10, a U-shaped frame 8 is fixed to the outer wall of one side of the mounting frame 1 by bolts, and a through hole opened at one end of the U-shaped frame 8 is slidably connected to a limit head 12, and a cover plate 15 is threadedly connected to one end of the limit head 12, a spring 16 is sleeved on the outer wall of the limit head 12, and two ends of the spring 16 are fixed to the inner wall of one side of the cover plate 15 and the outer wall of one side of the U-shaped frame 8 by welding, and a contact plate 13 is welded to the outer wall of the limit head 12.

[0026] By providing a lifting assembly, the height of the guide component 4 can be adjusted, and the guide component 4 is driven downward by the hydraulic cylinder 2, so that it is convenient to guide it during strip rolling, thereby guiding the direction and shape of the strip. When the guiding is completed and the rolling mill needs to change rolls, the lifting assembly drives the guide component 4 to move up. In order to avoid the guide component 4 from falling due to failure of the lifting assembly and causing a safety accident, when the guide component 4 rises to the set height, the cover plate 15 is pulled in advance so that the limit head 12 is displaced a certain distance along the U-shaped frame 8. As the guide component 4 moves upward, when the positioning hole 9 moves to a position relative to the limit head 12, the rebound force of the spring 16 is used to make the limit head 12 enter the positioning hole 9. When the lifting assembly fails, the limit head 12 can support the vertical plate 10 to avoid the guide component 4 from falling and causing a safety accident.

[0027] Furthermore, the lifting assembly includes a hydraulic cylinder 2 and a mounting plate 3, the mounting plate 3 is welded to the outer wall of one side of the mounting frame 1, and the hydraulic cylinder 2 is fixed to the top outer wall of the mounting plate 3 by bolts, and the top of the guide component 4 is fixed to the output end of the hydraulic cylinder 2 by bolts.

[0028] The hydraulic cylinder 2 can be provided to drive the guide component 4 to move up and down along the vertical direction, so that the height of the guide component 4 can be adjusted.

[0029] Furthermore, a U-shaped frame 1 5 is welded to the outer wall of one side of the U-shaped frame 2 8 , and an electromagnet 14 used in conjunction with the cover plate 15 is fixed to the inner wall of one side of the U-shaped frame 1 5 by screws.

[0030] When the hydraulic cylinder 2 drives the guide component 4 to move upward, the electromagnet 14 is energized. The magnetic force generated by the electromagnet 14 overcomes the elastic force of the spring 16, so that the electromagnet 14 adsorbs the cover plate 15. The cover plate 15 is a magnetic conductive material. In this example, the cover plate 15 is preferably made of iron. After the electromagnet 14 adsorbs the cover plate 15, the limit head 12 is displaced relative to the U-shaped frame 8. When the positioning hole 9 moves to a position opposite to the limit head 12, the electromagnet 14 is de-energized, so that the limit head 12 enters the positioning hole 9 under the action of the rebound force of the spring 16.

[0031] Working principle: when it is necessary to guide the strip during rolling, the hydraulic cylinder 2 is used to drive the guide component 4 to move down to a certain distance, and then the guide component 4 is used to guide the direction and shape of the strip. When the strip rolling is completed and the rolling mill needs to change rolls, the hydraulic cylinder 2 is used to drive the guide component 4 to move up. At this time, the electromagnet 14 is energized, and the electromagnet 14 adsorbs the cover plate 15 after generating magnetic force, so that the limit head 12 moves backward relative to the U-shaped frame 8. When the positioning hole 9 moves to a position relative to the limit head 12, the electromagnet 14 is de-energized, so that the limit head 12 enters the positioning hole 9 under the action of the rebound force of the spring 16. When the hydraulic cylinder 2 fails, the limit head 12 can support the vertical plate 10, thereby avoiding the guide component 4 from falling and causing a safety accident. Embodiment 2:

[0032] The guide device of the steel plate rolling mill is used to realize the automatic control of the electromagnet 14. Figures 1 to 4 As shown, this embodiment makes the following supplements on the basis of Embodiment 1: an extension plate 7 is welded to the outer wall of one side of the mounting frame 1, and a contact switch 17 is fixed to the bottom of the extension plate 7 by screws, and a trigger rod 11 used in conjunction with the contact switch 17 is welded to the outer wall of the top of the vertical plate 10; a control box 6 is fixed to the outer wall of one side of the mounting frame 1 by screws, and the control box 6, the contact switch 17 and the electromagnet 14 are electrically connected.

[0033] When the guide component 4 is guiding during strip rolling, the electromagnet 14 is always in a powered-on state, that is, the electromagnet 14 adsorbs and fixes the cover plate 15. When the rolling mill needs to change rolls and the guide component 4 moves up, the trigger rod 11 contacts the contact switch 17 after moving up, triggering the contact switch 17 to turn on. After the contact switch 17 is turned on, the signal is fed back to the control box 6, and the control box 6 is used to control the electromagnet 14. After the electromagnet 14 is powered off, the limit head 12 enters the inside of the positioning hole 9 under the action of the rebound force of the spring 16. The inner diameter of the positioning hole 9 is larger than the outer diameter of the limit head 12. This can ensure that when the guide component 4 needs to move downward and the trigger rod 11 is disengaged from the contact switch 17, it can prevent the positioning hole 9 and the limit head 12 from getting stuck, causing the trigger rod 11 to be unable to disconnect from the contact switch 17. When the trigger rod 11 and the contact switch 17 are disconnected, the control box 6 controls the electromagnet 14, and the electromagnet 14 is re-energized to adsorb the cover plate 15, so that the limit head 12 is disengaged from the positioning hole 9. After the guide component 4 moves downward, it is guided again during strip rolling.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide device for a steel plate rolling mill, comprising a mounting frame (1), characterized in that: A lifting assembly is fixed to an outer wall of one side of the mounting frame (1), a guide component (4) is installed at the bottom of the lifting assembly, a vertical plate (10) is fixed to the top of the guide component (4), and a locking hole (9) is provided on the surface of the vertical plate (10), a U-shaped frame (8) is fixed to an outer wall of one side of the mounting frame (1), and a through hole provided at one end of the U-shaped frame (8) is movably connected to a limit head (12), and a cover plate (15) is threadedly connected to one end of the limit head (12), a spring (16) is sleeved on the outer wall of the limit head (12), and two ends of the spring (16) are fixed to the inner wall of one side of the cover plate (15) and the outer wall of one side of the U-shaped frame (8) by welding, and a contact plate (13) is welded to the outer wall of the limit head (12).

2. The guide device for a steel plate rolling mill according to claim 1, characterized in that: The lifting assembly comprises a hydraulic cylinder (2) and a mounting plate (3); the mounting plate (3) is welded to an outer wall of one side of the mounting frame (1), and the hydraulic cylinder (2) is fixed to the top outer wall of the mounting plate (3).

3. The guide device for a steel plate rolling mill according to claim 2, characterized in that: The outer wall of one side of the U-shaped frame 2 (8) is welded with the U-shaped frame 1 (5), and the inner wall of one side of the U-shaped frame 1 (5) is fixed with an electromagnet (14) used in conjunction with the cover plate (15) by means of screws.

4. The guide device for a steel plate rolling mill according to claim 3, characterized in that: An extension plate (7) is welded to the outer wall of one side of the mounting frame (1), a contact switch (17) is fixed to the bottom of the extension plate (7) by means of screws, and a trigger rod (11) used in conjunction with the contact switch (17) is welded to the outer wall of the top of the vertical plate (10).

5. The guide device for a steel plate rolling mill according to claim 4, characterized in that: A control box (6) is fixed to an outer wall of one side of the mounting frame (1) by means of screws, and the control box (6), the contact switch (17) and the electromagnet (14) are electrically connected.

6. The guide device for a steel plate rolling mill according to claim 5, characterized in that: The inner diameter of the locking hole (9) is greater than the outer diameter of the limiting head (12).

7. The guide device for a steel plate rolling mill according to claim 6, characterized in that: The top of the guide component (4) is fixed to the output end of the hydraulic cylinder (2).

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