Reversible rolling mill for bar production

Abstract

The utility model relates to the technical field of rolling mills, in particular to a reversible rolling mill for bar production, which comprises a base, a plurality of protective covers for shielding rotating joints are arranged outside the base, two openings are arranged outside the protective covers, and fixing mechanisms for fixing the protective covers are arranged at two ends of the base. Each fixing mechanism comprises a positioning groove, a pressing plate, a limiting screw hole and a limiting screw rod, the positioning grooves are formed in the upper surface of the base, the pressing plates are slidably connected into the positioning grooves, the integral protective cover is modularized, and when any module in the protective cover is damaged, the limiting screw rods are rotated to be away from the pressing plates, so that the module in the protective cover is damaged. At the moment, a tool is inserted into the opening to pull the protective cover upwards so that connection between the protective cover and the positioning groove can be removed, compared with an integral protective cover and a modularized protective cover, the protective cover is more convenient for workers to disassemble, the weight of a single module is smaller than that of an original integral protective cover, the working intensity of the workers is reduced, and meanwhile material waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, and in particular to a reversible rolling mill for bar production. Background Technology

[0002] A reversible rolling mill for bar production is a key piece of equipment in the steel rolling industry for processing bars. Its core feature is that it achieves multi-pass rolling of metal billets through the reversible reciprocating rotation of the rolls, ultimately rolling them into bar products of the required specifications. It has the following structure:

[0003] 1. Base: The basic support component of the rolling mill, used to install and fix core components such as rolls and power mechanism, and to ensure the overall stability of the equipment;

[0004] 2. Rolls: Rolls are the core components of a rolling mill, used to roll and deform bars by rotation.

[0005] 3. Protective cover: A safety protective structure that covers the outside of rotating parts;

[0006] 4. Power mechanism: The drive system that provides power for the rotation of the rolls and the operation of the equipment.

[0007] In the operation of a reversible rolling mill, in addition to the rotation of the rolls, the mill also contains many rotating connections. In order to prevent operators from accidentally contacting the rotating parts, a U-shaped protective cover is installed on the outside of the rotating connection using bolts. Due to the long transmission distance and large structural size of the rotating connection that is directly connected to the rolls, a large-size integral protective cover is required. When the surface of the protective cover is deformed, it is necessary to replace the protective cover in time in order to prevent the protective cover from affecting the rotation of the rotating connection.

[0008] The large size and weight of the protective cover make the work difficult for the staff. In addition, when the damage to the protective cover is only partial, the integral structure forces the maintenance personnel to replace the entire protective cover, resulting in material waste. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a reversible rolling mill for bar production, which solves the technical problems of large size and heavy weight of the protective cover, making it difficult for workers to disassemble, and the fact that when the damage to the protective cover is localized, the integral structure forces maintenance personnel to replace the entire protective cover, resulting in material waste.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A reversible rolling mill for bar production includes a base. Several protective covers are provided on the outside of the base to shield the rotating joints. Each protective cover has two openings on its exterior. Both ends of the base are equipped with fixing mechanisms for securing the protective covers. Each fixing mechanism includes a positioning groove, a pressure plate, limiting screw holes, and limiting screws. The positioning groove is located on the upper surface of the base, and the pressure plate is slidably connected inside the positioning groove. There are two limiting screw holes located on the side of the base near the positioning groove and communicating with the interior of the positioning groove. There are also two limiting screws, each threadedly connected to the interior of one of the two limiting screw holes.

[0012] Preferably, both ends of the base are provided with limiting mechanisms for restricting the rotation of the limiting screws. The limiting mechanism includes a limiting plate and a connecting plate. The limiting plate and the connecting plate are respectively snapped onto the outside of the two limiting screws. Each limiting plate has a groove on one side corresponding to the connecting plate. One end of the connecting plate is slidably connected to the inside of the groove. A spring is fixedly connected inside each groove. The connecting plate is fixedly connected to the end of the spring.

[0013] Preferably, each connecting plate is provided with a push plate on its exterior, and each connecting plate is rotatably connected to a rotating shaft on one side corresponding to the push plate, with the end of the push plate fixedly connected to the exterior of the rotating shaft.

[0014] Preferably, each positioning slot has several partitions fixedly installed inside to separate the positioning slot space, and each pressure plate has several openings on its outside, and the pressure plate is slidably connected to the outside of the partitions through the openings.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Modularize the integrated protective cover. When any module in the protective cover is damaged, rotate the limit screw to move the limit screw away from the pressure plate. At this time, use a tool to insert the tool into the opening and pull the protective cover upward to disconnect the protective cover from the positioning groove. Compared with the integrated protective cover, the modular protective cover is easier for workers to disassemble, and the weight of a single module is less than that of the original integrated protective cover, reducing the workload of workers and reducing material waste.

[0017] 2. After the limit screw is installed, hold the push plate and move the connecting plate to move the connecting plate into the slide groove. At this time, the spring is compressed. Then, first, the limit plate is engaged with the end of one limit screw. Release the push plate, and under the action of the spring, the connecting plate moves until it is engaged with the end of another limit screw. At this time, the limit screw cannot rotate, so that the limit screw always stays in the set position, thereby ensuring the stability of the protective cover for the operation of the rolling mill. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This utility model Figure 1 Structural diagram of the central protective shield;

[0021] Figure 3 This utility model Figure 1 Exploded view of the middle limiting plate;

[0022] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0024] Legend: 1. Base; 2. Protective cover; 3. Opening; 4. Positioning groove; 5. Pressure plate; 6. Limiting screw hole; 7. Limiting screw; 8. Limiting plate; 9. Connecting plate; 10. Slide groove; 11. Spring; 12. Push plate; 13. Rotating shaft; 14. Partition plate; 15. Opening. Detailed Implementation

[0025] This application provides a reversible rolling mill for bar production, which effectively solves the technical problems of large size and heavy weight of the protective cover, making it difficult for workers to disassemble, and the fact that when the damage to the protective cover is localized, the integral structure forces maintenance personnel to replace the entire protective cover, resulting in material waste.

[0026] Example

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problems of the protective cover being large and heavy, making it difficult for workers to disassemble, and the integral structure forcing maintenance personnel to replace the entire protective cover when only a part of the protective cover is damaged, resulting in material waste. The overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a reversible rolling mill for bar production, including a base 1. The base 1 has several protective covers 2 on its exterior to shield the rotating connection points. The protective covers 2 have two openings 3 on their exteriors. Both ends of the base 1 are provided with fixing mechanisms for fixing the protective covers 2. Each fixing mechanism includes a positioning groove 4, a pressure plate 5, a limiting screw hole 6, and a limiting screw 7. The positioning groove 4 is located on the upper surface of the base 1. The pressure plate 5 is slidably connected to the interior of the positioning groove 4. There are two limiting screw holes 6, which are located on the side of the base 1 near the positioning groove 4 and communicate with the interior of the positioning groove 4. There are two limiting screws 7, which are threadedly connected to the interior of the two limiting screw holes 6 respectively.

[0029] The protective cover 2 is installed outside the base 1 and is mainly used to shield the rotating connection of the rolling mill. The rotating connection is a relatively dangerous part during equipment operation. The protective cover 2 can effectively prevent operators from accidentally contacting the rotating parts, reduce the probability of safety accidents, and protect the personal safety of operators. During installation, the two ends of the bottom of the protective cover 2 are inserted into the positioning groove 4, and the limiting screw 7 is threaded into the limiting screw hole 6. By rotating the limiting screw 7, its end can push the pressure plate 5 to move, thereby realizing the fixing and loosening operation of the protective cover 2.

[0030] Both ends of the base 1 are provided with limiting mechanisms to restrict the rotation of the limiting screws 7. The limiting mechanism includes a limiting plate 8 and a connecting plate 9. The limiting plate 8 and the connecting plate 9 are respectively engaged with the outside of the two limiting screws 7 to prevent the limiting screws 7 from rotating, ensuring that the limiting screws 7 always remain in the set position, maintaining the fixation of the pressure plate 5, and thus ensuring the stability of the protective cover 2 for the operation of the rolling mill.

[0031] Each limiting plate 8 has a groove 10 on one side corresponding to the connecting plate 9. One end of the connecting plate 9 is slidably connected to the inside of the groove 10. A spring 11 is fixedly connected inside each groove 10. The connecting plate 9 is fixedly connected to the end of the spring 11. When installing the limiting mechanism, the connecting plate 9 is moved to compress the spring 11, thereby locking the limiting plate 8 and the connecting plate 9 onto the limiting screw 7 respectively. After installation, the elastic force of the spring 11 makes the connecting plate 9 tightly locked onto the end of the limiting screw 7, ensuring the limiting effect.

[0032] Each connecting plate 9 is provided with a push plate 12 on its exterior. Each connecting plate 9 is rotatably connected to a rotating shaft 13 on the side corresponding to the push plate 12. The end of the push plate 12 is fixedly connected to the exterior of the rotating shaft 13. By holding the push plate 12, the connecting plate 9 can be easily pushed to move within the slide groove 10, thus completing the installation and adjustment of the limiting mechanism. The rotating shaft 13 prevents the push plate 12 from protruding, avoiding the push plate 12 being pushed by the feet of passing personnel, and ensuring the limiting effect of the limiting mechanism.

[0033] Each positioning slot 4 has several partitions 14 fixedly installed inside to separate the space of the positioning slot 4. The partitions 14 can separate adjacent protective covers 2 to avoid affecting other protective covers 2 when disassembling the protective cover 2. The pressure plate 5 has several openings 15 on its outside. The pressure plate 5 is slidably connected to the outside of the partitions 14 through the openings 15.

[0034] Working principle:

[0035] First, when using the reversible rolling mill, insert both ends of the protective cover 2 into the positioning groove 4 respectively. In addition, the part of the protective cover 2 located in the positioning groove 4 is attached to the surface of the partition plate 14. After the protective cover 2 is installed, screw the limiting screw 7 into the limiting screw hole 6 and continue to rotate the limiting screw 7 so that the limiting screw 7 pushes the pressure plate 5 so that the pressure plate 5 is tightly attached to the surface of the protective cover 2 to clamp and fix the protective cover 2. When any module in the protective cover 2 is damaged, rotate the limiting screw 7 in the opposite direction so that the limiting screw 7 is away from the pressure plate 5. At this time, use a tool to insert the tool into the opening 3 and pull the protective cover 2 upward to disconnect the protective cover 2 from the positioning groove 4.

[0036] The second step is to hold the push plate 12 and move the connecting plate 9 into the slide groove 10. At this time, the spring 11 is compressed. Then, the limiting plate 8 is first engaged with the end of a limiting screw 7. Then, the push plate 12 is released. Under the action of the spring 11, the connecting plate 9 moves until it is engaged with the end of another limiting screw 7. At this time, the limiting screw 7 cannot rotate.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A reversible rolling mill for bar production, comprising a base (1), characterized in that, The base (1) is provided with several protective covers (2) for shielding the rotating connection. The protective covers (2) have two openings (3) on the outside. Both ends of the base (1) are provided with fixing mechanisms for fixing the protective covers (2). Each fixing mechanism includes a positioning groove (4), a pressure plate (5), a limiting screw hole (6) and a limiting screw (7). The positioning groove (4) is opened on the upper surface of the base (1), the pressure plate (5) is slidably connected to the inside of the positioning groove (4), there are two limiting screw holes (6), the two limiting screw holes (6) are opened on the side of the base (1) close to the positioning groove (4), the limiting screw holes (6) are connected to the inside of the positioning groove (4), there are two limiting screws (7), the two limiting screws (7) are threadedly connected to the inside of the two limiting screw holes (6) respectively.

2. The reversible rolling mill for bar production as described in claim 1, characterized in that, Both ends of the base (1) are provided with limiting mechanisms for restricting the rotation of the limiting screw (7). The limiting mechanisms include a limiting plate (8) and a connecting plate (9). The limiting plate (8) and the connecting plate (9) are respectively snapped onto the outside of the two limiting screws (7).

3. A reversible rolling mill for bar production as described in claim 2, characterized in that, Each of the limiting plates (8) has a groove (10) on one side corresponding to the connecting plate (9); One end of the connecting plate (9) is slidably connected to the inside of the slide groove (10).

4. A reversible rolling mill for bar production as described in claim 3, characterized in that, Each of the aforementioned grooves (10) is fixedly connected to a spring (11); The connecting plate (9) is fixedly connected to the end of the spring (11).

5. A reversible rolling mill for bar production as described in claim 2, characterized in that, Each of the connecting plates (9) is provided with a push plate (12) on its exterior.

6. A reversible rolling mill for bar production as described in claim 5, characterized in that, Each of the connecting plates (9) is rotatably connected to a rotating shaft (13) on one side of the push plate (12); The push plate (12) is fixedly connected to the outside of the rotating shaft (13) at its end.

7. A reversible rolling mill for bar production as described in claim 1, characterized in that, Each of the positioning slots (4) has several partitions (14) fixedly installed inside to separate the space of the positioning slots (4).

8. A reversible rolling mill for bar production as described in claim 1, characterized in that, Each of the pressure plates (5) has several openings (15) on its exterior; The pressure plate (5) is slidably connected to the outside of the partition plate (14) through the opening (15).

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