Anti-flying device and continuous rolling mill

Abstract

The embodiment of the application provides a device for preventing a strip steel from flying off and a continuous rolling mill, and aims to prevent the strip steel from flying off the roller. The device for preventing the strip steel from flying off is connected with the base through the support, the jet device is arranged on the support, the jet device is used for jetting air to the roller, so that the strip steel is subjected to pressure in the direction of the roller in the process that the roller conveys the strip steel, the strip steel is attached to the roller, the strip steel is prevented from flying off the roller, the conveying process is avoided from being affected, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of conveying technology, and in particular to an anti-fly-off device and a continuous rolling mill. Background Technology

[0002] Currently, the continuous casting billet for steel rolling first undergoes descaling and then enters the primary rolling mill via roller conveyor, high-speed flying shear, pinch roll equipment, and finally the strip enters the coiling machine. Before the strip enters the pinch roll equipment, due to the speed reaching 10m / s and the strip thickness being less than 1.0mm, the high-speed ultra-thin strip is very prone to detaching from the rollers, affecting the conveying process and reducing production efficiency. Summary of the Invention

[0003] This application provides an anti-fly-off device and a continuous rolling mill, designed to prevent strip from detaching from the rollers.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] On one hand, this application provides an anti-flying device for use in a continuous rolling mill, which includes rollers for conveying strip steel. The anti-flying device includes a base, a support, and an air jet device. The support is connected to the base and is used to move above the rollers. The air jet device is mounted on the support and is used to spray air onto the rollers to make the strip steel adhere to the rollers.

[0006] The anti-flying device provided in this application has a bracket connected to a base. The bracket is equipped with an air jet device, which is used to spray air onto the roller to apply pressure to the strip in the direction of the roller during the process of conveying the strip. This causes the strip to adhere to the roller, preventing the strip from detaching from the roller, avoiding affecting the conveying process, and improving production efficiency.

[0007] In some embodiments, the anti-fly-off device further includes a telescopic member and a controller, the controller being electrically connected to the telescopic member for controlling the extension or retraction of the telescopic member; the base is rotatably connected to the bracket, one end of the telescopic member is connected to the base, and the other end is connected to the bracket.

[0008] With the above configuration, when the telescopic component extends, the jetting device on the support moves closer to the roller, causing the support to move above the roller, and the jetting device can spray air onto the roller; when the telescopic component shortens, the support moves away from the roller, allowing the support to make room above the roller, which is convenient for adjusting or repairing the roller.

[0009] In some embodiments, the jetting device includes a nozzle, the bottom of the bracket is provided with a mounting surface, and the nozzle is disposed on the mounting surface; the angle between the nozzle and the plane where the mounting surface is located is 30°-60°, and the jetting direction of the nozzle is biased towards the forward direction of the strip.

[0010] By setting the nozzles to spray air in the direction of the strip's forward movement, the strip is subjected to both downward pressure (preventing it from detaching from the rollers) and a force in the same direction as the conveying process, thus reducing the running resistance during the conveying of the strip.

[0011] In some embodiments, the jetting device further includes a compressor and a connecting pipe, one end of which is connected to the compressor and the other end of which is connected to the nozzle. The compressor is used to cause the nozzle to jet through the connecting pipe. Both the compressor and the connecting pipe are mounted on a support.

[0012] With the above settings, as the bracket and base rotate relative to each other, the relative positions of the compressor, connecting pipe, and nozzle remain unchanged. The connecting pipe can be made of metal, which increases the stability of the compressor delivering gas to the nozzle.

[0013] In other embodiments, the jetting device further includes a compressor and a connecting pipe, one end of which is connected to the compressor and the other end of which is connected to the nozzle. The compressor is used to cause the nozzle to jet through the connecting pipe. The compressor is mounted on a base and the connecting pipe is a flexible hose.

[0014] With the above configuration, as the bracket and the base rotate relative to each other, the shape of the connecting pipe also changes, ensuring that the compressor can deliver gas to the nozzle while placing the compressor on the base can reduce the load on the bracket and facilitate the relative rotation of the bracket and the base.

[0015] In some embodiments, the bracket further includes a protective element located on the mounting surface and spaced apart from the nozzle; the protective element is closer to the ground than the nozzle.

[0016] The above settings are designed to prevent the strip from colliding with the nozzle during the conveying process, which could damage the jetting device and render it ineffective.

[0017] In some embodiments, the strip is conveyed on a roller along a first direction, the protective member has a first end and a second end arranged sequentially along the first direction, and the bracket further includes a guide member connected to the first end; in the first direction, the guide member is gradually arranged closer to the ground.

[0018] With the above settings, during the conveying process of the strip steel, the strip steel is guided to be located below the protective element (i.e., between the protective element and the roller), preventing the strip steel from colliding with the protective element before moving below it.

[0019] On the other hand, this application also provides a continuous rolling mill, which includes rollers and the anti-fly-off device as described above: wherein the axial direction of the rollers is arranged parallel to the ground, and the rollers are used to convey strip steel; the anti-fly-off device includes a base, a support, and an air jet device, the base is arranged independently of the rollers, the support is connected to the base, and is used to move above the rollers; the air jet device is arranged on the support, and the air jet device is used to spray air onto the rollers to make the strip steel adhere to the rollers.

[0020] The continuous rolling mill provided in this application has a base and rollers that are set up relatively independently; the support is connected to the base and is equipped with an air jet device. The air jet device is used to spray air onto the rollers so that the strip is subjected to pressure in the direction of the rollers during the process of conveying the strip, so that the strip is in contact with the rollers, preventing the strip from detaching from the rollers, avoiding affecting the conveying process, and improving production efficiency.

[0021] In some embodiments, the anti-fly-off device further includes a telescopic member and a controller. The controller is electrically connected to the telescopic member and is used to control the extension or retraction of the telescopic member. The base is rotatably connected to the bracket, and one end of the telescopic member is connected to the base and the other end is connected to the bracket. When the telescopic member extends, the jetting device on the bracket approaches the roller, causing the bracket to move above the roller, and the jetting device can jet air onto the roller. When the telescopic member retracts, the bracket moves away from the roller, allowing the bracket to make room above the roller for adjustment or maintenance of the roller.

[0022] In some embodiments, the bottom of the bracket is provided with a mounting surface; the jetting device includes a nozzle, the bracket includes a protective member, both the nozzle and the protective member are disposed on the mounting surface, and the nozzle and the protective member are spaced apart; the protective member is closer to the roller than the nozzle.

[0023] The above settings are designed to prevent the strip from colliding with the nozzle during the conveying process, which could damage the jetting device and render it ineffective.

[0024] In some embodiments, the distance between the protective element and the roller is 10mm-100mm. This allows the anti-flying device to be adapted to the production needs of strip steel of different thicknesses, thus improving its applicability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the continuous rolling mill in the embodiments of this application. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the continuous rolling mill in the embodiments of this application. Figure 2 .

[0027] Reference numerals: 100, continuous rolling mill; 101, roller; 10, anti-fly-off device; 11, base; 12, bracket; 121, mounting surface; 122, protective component; 13, air jet device; 131, nozzle; 132, connecting pipe; 14, telescopic component. Detailed Implementation

[0028] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0029] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0030] This application provides a continuous rolling mill 100, with reference to... Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a schematic diagram of the continuous rolling mill in different directions according to the embodiments of this application. The continuous rolling mill 100 includes multiple rolls for forming strip steel and rollers 101 for conveying strip steel. The axial direction of the rollers 101 is parallel to the ground. Multiple rollers 101 can be provided, and the multiple rollers 101 are arranged in parallel and adjacent to each other. The two adjacent rollers 101 do not affect each other. During the conveying of strip steel, the strip steel is located above the rollers 101 (on the side away from the ground).

[0031] The aforementioned continuous rolling mill 100 also includes an anti-fly-off device 10, which includes a base 11, a support 12, and an air jet device 13. The base 11 is independently disposed from the roller 101; the support 12 is connected to the base 11, and the air jet device 13 is mounted on the support 12. The air jet device 13 sprays air onto the roller 101 to apply pressure to the strip in the direction of the roller 101 during the conveying process, causing the strip to adhere to the roller 101, preventing the strip from detaching from the roller 101, avoiding disruption to the conveying process, and improving production efficiency.

[0032] In the above embodiments, the bracket 12 and the base 11 can be fixedly connected or rotatably connected.

[0033] In the embodiment where the bracket 12 is fixedly connected to the base 11, the base 11 can move relative to the roller 101 so that the bracket 12 moves above the roller 101, thereby allowing the jetting device 13 on the bracket 12 to jet air onto the roller 101; or allowing the bracket 12 to make room above the roller 101, so as to facilitate the adjustment or maintenance of the roller 101.

[0034] In the embodiment where the bracket 12 and the base 11 are rotatably connected, the anti-fly-away device 10 further includes a telescopic member 14 (such as...). Figure 2 As shown in the diagram, the telescopic member 14 is connected at one end to the base 11 and at the other end to the bracket 12. The controller is electrically connected to the telescopic member 14 and is used to control the extension or retraction of the telescopic member 14. The telescopic member 14 may include a hydraulic cylinder, an electric cylinder, etc., and the controller may include a computer, etc. For example, when the telescopic member 14 extends, the jetting device 13 on the bracket 12 moves closer to the roller 101, causing the bracket 12 to move above the roller 101, and the jetting device 13 can jet air onto the roller 101. When the telescopic member 14 retracts, the bracket 12 moves away from the roller 101, allowing the bracket 12 to make room above the roller 101 for adjustment or maintenance of the roller 101.

[0035] In some embodiments, the support 12 has a mounting surface 121 at its bottom, and the jetting device 13 includes nozzles 131 disposed on the mounting surface 121. Multiple nozzles 131 can be arranged in an array on the mounting surface 121. When the support 12 is above the roller 101, the lower surface of the mounting surface 121 is parallel to the ground, i.e., the mounting surface 121 is parallel to the upper surface of the roller 101 used for conveying the strip steel. This ensures that the distance between the multiple nozzles 131 on the mounting surface 121 and the distance above the roller 101 is the same, thereby ensuring that the pressure generated by the multiple nozzles 131 jetting air onto different positions of the strip steel is the same, allowing the strip steel to be subjected to uniform force.

[0036] In the above embodiments, the angle between the nozzle 131 and the plane containing the mounting surface 121 is 30°-60°, and the jet direction of the nozzle 131 is biased towards the forward direction of the strip. It can be understood that by biasing the jet direction of the nozzle 131 towards the forward direction of the strip, the strip is subjected to both downward pressure to prevent it from detaching from the roller 101 and a force in the same direction as the conveying direction, thus reducing the running resistance during the strip conveying process. For example, the angle between the nozzle 131 and the plane containing the mounting surface 121 is 30°, 45°, 60°, etc.

[0037] In embodiments where the support 12 and base 11 are rotatably connected, the jetting device 13 may further include a compressor (not shown) and a connecting pipe 132. One end of the connecting pipe 132 is connected to the compressor, and the other end is connected to the nozzle 131. The compressor is used to cause the nozzle 131 to jet gas through the connecting pipe 132. In some embodiments, both the compressor and the connecting pipe 132 are mounted on the support 12. As the support 12 and base 11 rotate relative to each other, the relative positions of the compressor, connecting pipe 132, and nozzle 131 remain unchanged. The connecting pipe 132 can be made of metal to increase the stability of the compressor's gas delivery to the nozzle 131. In other embodiments, the compressor is mounted on the base 11, and the connecting pipe 132 is a flexible hose. As the support 12 and base 11 rotate relative to each other, the shape of the connecting pipe 132 changes accordingly. This ensures that the compressor can deliver gas to the nozzle 131 while reducing the load on the support 12 by mounting the compressor on the base 11, and also facilitates the relative rotation of the support 12 and base 11.

[0038] In some embodiments, the bracket 12 further includes a protective member 122, which is located on the mounting surface 121 and spaced apart from the nozzle 131. The protective member 122 is closer to the ground than the nozzle 131. That is, during the conveying of the strip steel, the protective member 122 is closer to the roller 101 than the nozzle 131 to avoid the strip steel from colliding with the nozzle 131 during the conveying process, thereby damaging the jetting device 13 and rendering the jetting device 13 ineffective.

[0039] In the above embodiments, the distance between the protective element 122 and the roller 101 is 10mm-100mm, so that the anti-flying device 10 can be applied to the production needs of strip steel of different thicknesses, thereby improving the applicability of the anti-flying device 10. For example, the distance between the protective element 122 and the roller 101 is 10mm, 50mm, 100mm, etc.

[0040] In some embodiments, the support 12 further includes a guide 123 connected to the mounting surface 121. During the conveying of the strip steel by the roller 101, the strip steel is conveyed along a first direction. The protective member 122 has a first end and a second end sequentially arranged along the first direction (understandably, during the conveying of the strip steel by the roller 101, the strip steel first passes through the first end of the protective member 122, and then passes through the second end of the protective member 122). The guide 123 is connected to the first end of the protective member 122, and in the first direction, the guide 123 is gradually positioned closer to the ground. In embodiments where the support 12 is located above the roller 101, the distance between the guide 123 and the roller 101 gradually decreases in the first direction. During the conveying of the strip steel, the guide steel is positioned below the protective member 122 (i.e., between the protective member 122 and the roller 101) to prevent the strip steel from colliding with the protective member 122 before moving below it.

[0041] In the above embodiments, the extension direction of the guide 123 is set at an angle to the extension direction of the protective member 122, and the angle is 20°-40°. For example, the angle between the extension direction of the guide 123 and the extension direction of the protective member 122 is 20°, 30°, 40°, etc.

[0042] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0044] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0045] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. An anti-flying device, applied to a continuous rolling mill, the continuous rolling mill including rollers for conveying strip steel, characterized in that, The anti-fly-off device includes: Base; A support bracket connected to the base for moving above the roller; An air jetting device is mounted on the support and is used to spray air onto the roller to make the strip steel adhere to the roller.

2. The anti-flying device according to claim 1, characterized in that, The anti-fly-off device also includes a telescopic component and a controller. The controller is electrically connected to the telescopic component and is used to control the extension or retraction of the telescopic component. The base is rotatably connected to the bracket, one end of the telescopic member is connected to the base, and the other end is connected to the bracket.

3. The anti-fly-away device according to claim 2, characterized in that, The jetting device includes a nozzle, and the bottom of the bracket is provided with a mounting surface, and the nozzle is disposed on the mounting surface; the angle between the nozzle and the plane where the mounting surface is located is 30°-60°, and the jetting direction of the nozzle is biased towards the forward direction of the strip.

4. The anti-fly-away device according to claim 3, characterized in that, The jetting device further includes a compressor and a connecting pipe, one end of which is connected to the compressor and the other end of which is connected to the nozzle. The compressor is used to make the nozzle jet through the connecting pipe. In this configuration, both the compressor and the connecting pipe are mounted on the support; or, the compressor is mounted on the base, and the connecting pipe is a flexible hose.

5. The anti-fly-away device according to claim 3, characterized in that, The bracket also includes a protective element located on the mounting surface and spaced apart from the nozzle; the protective element is closer to the ground than the nozzle.

6. The anti-fly-away device according to claim 3, characterized in that, The strip steel is conveyed on the roller along a first direction. The protective member has a first end and a second end arranged sequentially along the first direction. The bracket also includes a guide member connected to the first end. In the first direction, the guide member is gradually moved closer to the ground.

7. A continuous rolling mill, characterized in that, The continuous rolling mill includes rollers and an anti-fly-off device as described in any one of claims 1-6: wherein... The roller is arranged with its axial direction parallel to the ground, and the roller is used to convey strip steel; The launching device includes a base, a support, and an air jet device. The base is independently arranged relative to the roller, and the support is connected to the base for moving above the roller. The air jet device is arranged on the support and is used to spray air onto the roller to make the strip steel adhere to the roller.

8. The continuous rolling mill according to claim 7, characterized in that, The anti-fly-off device also includes a telescopic component and a controller. The controller is electrically connected to the telescopic component and is used to control the extension or retraction of the telescopic component. The base is rotatably connected to the bracket, and one end of the telescopic member is connected to the base and the other end is connected to the bracket; As the telescopic component extends, the bracket moves closer to the roller; As the telescopic component shortens, the bracket moves away from the roller.

9. The continuous rolling mill according to claim 7, characterized in that, The bottom of the bracket is provided with a mounting surface; the jetting device includes a nozzle, the bracket includes a protective member, both the nozzle and the protective member are disposed on the mounting surface, and the nozzle and the protective member are spaced apart; the protective member is closer to the roller than the nozzle.

10. The continuous rolling mill according to claim 9, characterized in that, The distance between the protective component and the roller is 10mm-100mm.

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