A new type of back platform of three-roller mill

Abstract

The utility model discloses a novel backstage of three roll mill, including backstage body, the inside fixed connection of backstage body has three support plate subassembly, the one side of three support plate subassembly surface all is fixedly connected with the link component, the middle part of multiple support plate subassembly surface all is fixedly installed with photoelectric sensor, the one end of multiple support plate subassembly all is fixedly installed with coaxial polishing mechanism, the one side of backstage body is provided with multiple dust collection support plate, and the connecting place of multiple dust collection support plate and backstage body all is provided with dust collection component, the utility model discloses a novel backstage of three roll mill, the polishing mechanism of the device setting follows the synchronous movement of link roll holder, and the diameter of polishing cylinder matches the diameter of link roll holder, and the polishing cylinder is coaxial with link roll holder, and link roll holder has high-precision centering to the steel pipe after rolling, and the polishing cylinder can utilize link roll holder to directly carry out high-precision polishing to the steel pipe, guarantees the quality of polishing, and provides the convenience for subsequent fine grinding.

Description

Technical Field

[0001] This utility model relates to the technical field of three-roll mills, specifically a novel backstage for three-roll mills. Background Technology

[0002] In the field of steel pipe rolling production, the three-roll mill is the core equipment for achieving high-precision forming, sizing, and reduction of steel pipes. Its back-end system is a key link in ensuring rolling continuity, product quality stability, and production efficiency. Existing three-roll mills have three clamping rolls in the back-end system, controlled by three telescopic cylinders. The telescopic cylinders extend and retract according to the diameter of the steel pipe, ensuring contact between the three clamping rolls and the steel pipe. As the steel pipe rotates, this effectively reduces deformation caused by swaying. However, the above-mentioned common three-roll mill back-end system still has shortcomings: After the steel pipe is rolled, there will be some oxide layer and impurities on the surface of the steel pipe. In subsequent processes such as straightening, the uncleaned impurities and oxide layer are easily squeezed onto the surface of the steel pipe, which will cause inconvenience to the subsequent fine grinding. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of backing for a three-roll mill, in order to solve the problem mentioned in the background art that after the steel pipe is rolled, there will be some oxide layer and impurities on the surface of the steel pipe. In subsequent processes such as straightening, the uncleaned impurities and oxide layer are easily squeezed onto the surface of the steel pipe, which brings inconvenience to the subsequent fine grinding.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel backstage for a three-roll mill, comprising a backstage body, wherein three support plate assemblies are fixedly connected inside the backstage body, a connecting component is fixedly connected to one side of each of the three support plate assemblies, a photoelectric sensor is fixedly installed in the middle of the surface of each of the support plate assemblies, a coaxial grinding mechanism is fixedly installed at one end of each of the support plate assemblies, and a plurality of dust-collecting support plates are provided on one side of the backstage body, and a dust-collecting component is provided at the connection between the plurality of dust-collecting support plates and the backstage body.

[0005] Preferably, the support plate assembly includes a guide support plate, one end of which is fixedly connected to a side support plate, and the photoelectric sensor is fixedly mounted on the guide support plate.

[0006] Preferably, the connecting assembly includes two shaft hole support plates, both of which are fixedly connected to the guide support plate, and a connecting roller is rotatably connected between the two shaft hole support plates, which is beneficial for high-precision centering of the steel pipe and ensuring the temperature of the steel pipe.

[0007] Preferably, the coaxial grinding mechanism includes a drive motor, which is fixedly mounted on a side support plate. The output end of the drive motor is fixedly connected to a mounting rod. A limit baffle is fixedly connected to one side of the surface of the mounting rod, and a threaded layer is provided on the other side of the surface of the mounting rod. Limiting protrusions are fixedly connected to both sides of the mounting rod, and a fixing nut is threaded onto the surface of the threaded layer, which is beneficial for grinding impurities and oxide layers on the surface of the steel pipe.

[0008] Preferably, a grinding cylinder is slidably connected to the surface of the mounting support rod, and a limiting groove is provided on both sides of the inner wall of the grinding cylinder. The interior of the limiting groove is slidably connected to the surface of the limiting protrusion, and the grinding cylinder is coaxial with the connecting roller.

[0009] Preferably, the dust collection component includes a vacuum cleaner, which is fixedly connected to the backstage body. One end of the vacuum cleaner is fixedly connected to a suction pipe, one end of which passes through a suction support plate and is fixedly connected to a flared mouth. This facilitates the removal of dust and debris generated during grinding, ensuring a good working environment at the backstage of the three-roll mill.

[0010] Compared with the prior art, the beneficial effects of this utility model are: a grinding mechanism is provided behind the connecting roller. The grinding mechanism can grind away most of the impurities and oxide layer on the surface of the steel pipe, which facilitates the subsequent fine grinding process. It is also equipped with a dust collection component to suck away the dust and debris generated during grinding, ensuring the working environment of the back-end position of the three-roll mill. The grinding mechanism moves synchronously with the connecting roller. The diameter of the grinding cylinder matches the diameter of the connecting roller. The grinding cylinder and the connecting roller are coaxial. The connecting roller provides high-precision centering for the rolled steel pipe. The grinding cylinder can directly perform high-precision grinding on the steel pipe using the connecting roller, ensuring the quality of grinding and facilitating subsequent fine grinding. Attached Figure Description

[0011] Figure 1 This is a front structural view of the novel backstage of the three-roll mill of this utility model; Figure 2 This is a rear structural diagram of the novel back stage of the three-roll mill of this utility model; Figure 3 This is a structural diagram of the new back-end connection grinding mechanism for the three-roll mill of this utility model; Figure 4 This is a structural diagram of the novel backstage support rod for a three-roll mill according to this utility model; Figure 5 This is a structural diagram of the novel background grinding cylinder for a three-roll mill according to this utility model.

[0012] In the diagram: 1. Backstage body; 2. Guide support plate; 3. Shaft hole support plate; 4. Connecting roller; 5. Side support plate; 6. Photoelectric sensor; 7. Drive motor; 8. Mounting support rod; 9. Limiting baffle; 10. Limiting protrusion; 11. Grinding cylinder; 12. Limiting slide groove; 13. Threaded layer; 14. Fixing nut; 15. Dust collection support plate; 16. Vacuum cleaner; 17. Dust collection pipe; 18. Trumpet mouth. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figure 1-5 This utility model provides a novel backstage for a three-roll mill, including a backstage body 1. Three support plate assemblies are fixedly connected inside the backstage body 1. Connecting components are fixedly connected to one side of the surface of each of the three support plate assemblies. Photoelectric sensors 6 are fixedly installed in the middle of the surface of each of the support plate assemblies. Coaxial grinding mechanisms are fixedly installed at one end of each of the support plate assemblies. Multiple dust-collecting support plates 15 are provided on one side of the backstage body 1. Dust-collecting components are provided at the connection points between the multiple dust-collecting support plates 15 and the backstage body 1.

[0015] See Figure 2 , Figure 3 , Figure 4 and Figure 5 Furthermore, the support plate assembly includes a guide support plate 2, with a side support plate 5 fixedly connected to one end of the surface of the guide support plate 2. A photoelectric sensor 6 is fixedly mounted on the guide support plate 2. The connecting assembly includes two shaft hole support plates 3, both of which are fixedly connected to the guide support plate 2. A connecting roller 4 is rotatably connected between the two shaft hole support plates 3. The coaxial grinding mechanism includes a drive motor 7, which is fixedly mounted on the side support plate 5. A mounting rod 8 is fixedly connected to the output end of the drive motor 7. A limit baffle 9 is fixedly connected to one side of the surface of the mounting rod 8, and a threaded layer 13 is provided on the other side of the surface of the mounting rod 8. Both sides of the mounting rod 8 are fixedly connected to limiting protrusions 10. The surface of the threaded layer 13 is threadedly connected to a fixing nut 14. The surface of the mounting rod 8 is slidably connected to a grinding cylinder 11. Both sides of the inner wall of the grinding cylinder 11 are provided with limiting grooves 12. The inside of the limiting grooves 12 is slidably connected to the surface of the limiting protrusions 10. The grinding cylinder 11 is coaxial with the connecting roller 4. The dust collection assembly includes a vacuum cleaner 16. The vacuum cleaner 16 is fixedly connected to the back-end body 1. One end of the vacuum cleaner 16 is fixedly connected to a vacuum pipe 17. One end of the vacuum pipe 17 passes through the vacuum support plate 15. One end of the vacuum pipe 17 is fixedly connected to a flared mouth 18. In use, after the rolled steel pipe passes through the three connecting rollers 4, the photoelectric sensor 6 installed on the guide plate 2 detects the steel pipe, and the three telescopic cylinders on the back-end body 1 are activated. The guide plate 2 is fixedly connected to the output end of the telescopic cylinder. Therefore, after the telescopic cylinder is activated, the guide plate 2 and the connecting rollers 4 move towards the steel pipe. At the same time, the drive motor 7 starts, driving the grinding cylinder 11 to rotate in the opposite direction to the rotation of the steel pipe. When the connecting rollers 4 contact the surface of the steel pipe, the end of the steel pipe is also polished by the three grinding cylinders 11. 1. Surface grinding is performed. The three flared mouths 18 correspond to the positions of the three grinding cylinders 11, effectively sucking away the dust and debris generated during grinding and ensuring a good working environment. The limiting protrusions 10 and the limiting grooves 12 can effectively prevent the grinding cylinders 11 from slipping during use, ensuring the quality of grinding. The diameter of the grinding cylinders 11 matches the diameter of the connecting rollers 4. The grinding cylinders 11 and the connecting rollers 4 are coaxial. The connecting rollers 4 have high-precision centering for the rolled steel pipe. The grinding cylinders 11 can use the connecting rollers 4 to directly perform high-precision grinding on the steel pipe, ensuring the quality of grinding.

[0016] In this embodiment, the steel pipe end, after being rolled by the steel pipe rolling mill, first passes through the connecting roller 4. At this time, the telescopic cylinder on the back-end body 1 is not activated. The steel pipe end continues to move to one side until it is detected by the photoelectric sensor 6. Then, the telescopic cylinder, drive motor 7, and vacuum cleaner 16 are activated simultaneously. Based on the pushing speed of the steel pipe by the steel pipe rolling mill, the installation position of the photoelectric sensor 6 is selected so that when the connecting roller 4 contacts the steel pipe, the end of the steel pipe is within the range of the grinding cylinder 11. This ensures that the end of the steel pipe is ground, and also ensures that the steel pipe can smoothly enter the grinding area formed by the three grinding cylinders 11. This grinding area can remove most of the impurities and oxide layer on the surface of the steel pipe, reducing the preparation work before subsequent fine grinding. Furthermore, by utilizing the high-precision centering function of the connecting roller 4, the centering work is reduced during grinding, improving the grinding accuracy and increasing production efficiency. The grinding cylinder 11 needs to be fixed. Replacement is performed as needed. During replacement, unscrew the fixing nut 14 and move the grinding cylinder 11 towards the connecting roller 4. The distance between the grinding cylinder 11 and the shaft hole support plate 3 is sufficient to remove and replace the grinding cylinder 11. Then, replace it with a new grinding cylinder 11 and fix it with the fixing nut 14 to complete the replacement. This is relatively convenient and quick. It should be noted that this utility model is a new type of back-end for a three-roll mill. All components are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection between each electrical component in sequence. The detailed connection method is a well-known technology in the field.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel backstage for a three-roll mill, comprising a backstage body (1), characterized in that: The backstage body (1) is internally fixedly connected to three support plate assemblies. Each of the three support plate assemblies is fixedly connected to one side of its surface with a connecting component. Each of the support plate assemblies is fixedly installed with a photoelectric sensor (6) in the middle of its surface. Each of the support plate assemblies is fixedly installed with a coaxial grinding mechanism at one end. Each of the backstage body (1) is provided with a plurality of dust-collecting support plates (15) on one side. Each of the dust-collecting support plates (15) is provided with a dust-collecting component at the connection point between it and the backstage body (1).

2. The novel backstage of a three-roll mill according to claim 1, characterized in that: The support plate assembly includes a guide support plate (2), one end of which is fixedly connected to a side support plate (5), and the photoelectric sensor (6) is fixedly installed on the guide support plate (2).

3. The novel backstage of a three-roll mill according to claim 2, characterized in that: The connecting assembly includes two shaft hole support plates (3), both of which are fixedly connected to the guide support plate (2), and a connecting roller (4) is rotatably connected between the two shaft hole support plates (3).

4. A novel backstage for a three-roll mill according to claim 2, characterized in that: The coaxial grinding mechanism includes a drive motor (7), which is fixedly mounted on a side support plate (5). The output end of the drive motor (7) is fixedly connected to a mounting rod (8). A limit baffle (9) is fixedly connected to one side of the surface of the mounting rod (8). A threaded layer (13) is provided on the other side of the surface of the mounting rod (8). Limiting protrusions (10) are fixedly connected to both sides of the mounting rod (8). A fixing nut (14) is threadedly connected to the surface of the threaded layer (13).

5. A novel backstage for a three-roll mill according to claim 4, characterized in that: The surface of the mounting support rod (8) is slidably connected to a grinding cylinder (11). Both sides of the inner wall of the grinding cylinder (11) are provided with limiting grooves (12). The interior of the limiting grooves (12) is slidably connected to the surface of the limiting protrusions (10). The grinding cylinder (11) is coaxial with the connecting roller (4).

6. A novel backstage for a three-roll mill according to claim 1, characterized in that: The vacuuming assembly includes a vacuum cleaner (16), which is fixedly connected to the back-end body (1). One end of the vacuum cleaner (16) is fixedly connected to a vacuum pipe (17), one end of the vacuum pipe (17) passes through a vacuum support plate (15), and one end of the vacuum pipe (17) is fixedly connected to a flared mouth (18).

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