Rolling mill screwdown adjustment device
By designing a rolling mill roll reduction adjustment device, and utilizing the cooperation of the arc-shaped inclined groove and the transmission disc, the upper and lower rolls are synchronously and smoothly rolled down, which solves the problem of uneven roll reduction in traditional rolling mills and improves the equipment's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXING DUCTILE IRON PIPES CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-24
AI Technical Summary
Imbalances are prone to occur during the pressing process of traditional rolling mills, leading to uneven material parameters and reduced equipment performance.
A rolling mill roll reduction adjustment device was designed, including a support component, a fixing component, and a transmission adjustment component. Through the cooperation of the arc-shaped inclined groove and the transmission disc, the upper and lower rolls are synchronously and smoothly pressed down, and the buffer spring is used to improve the buffering effect.
This improves the stability and uniformity of the downward pressure of the upper and lower rollers, thus enhancing the equipment's performance.
Smart Images

Figure CN224542689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill technology, specifically a rolling mill reduction adjustment device. Background Technology
[0002] A rolling mill is a mechanical device that realizes the metal rolling process. It generally refers to the equipment that completes the entire process of rolling production, including main equipment, auxiliary equipment, lifting and transportation equipment, and auxiliary equipment. It is widely used in the metal processing industry such as steel and non-ferrous metals. It is a key piece of equipment for producing various metal materials such as plates, profiles, and pipes. With the continuous progress of science and technology, rolling mills are also constantly developing and innovating in design, manufacturing, and application to meet the ever-changing market demands and technical requirements.
[0003] During normal production, the mill grooves wear down, widening the roll gap. To ensure steel quality, the mill's pressing device must reduce the roll gap. However, if the pressing device accumulates slag or rust, the resistance increases, making manual adjustment of the roll gap impossible. Traditional mill pressing methods typically involve manual or hydraulic cylinder-driven pressing, which often results in uneven pressing, leading to inconsistent material parameters in the produced sheets and reducing equipment efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a rolling mill pressing adjustment device, which solves the problem that traditional rolling mill pressing is generally done manually or by hydraulic cylinder, often resulting in unbalanced pressing during the pressing process. This leads to uneven material parameters in the produced plates and other materials, reducing the effectiveness of the equipment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rolling mill reduction adjustment device, comprising a fixed base plate, and further comprising a support assembly, a fixing assembly, and a transmission adjustment assembly. Two support assemblies are provided, each fixedly connected to the top two sides of the fixed base plate via support rods. Two fixing assemblies are provided, each fixedly welded to the opposite side of the two support assemblies. Two transmission adjustment assemblies are provided, each fixedly welded to the two fixing assemblies.
[0006] Preferably, the two support components include two support platforms, which are respectively fixedly welded to the top two sides of the fixed base plate by support rods. The two support platforms are provided with first limiting grooves through the top and bottom of their opposite sides. The first support seats are slidably arranged inside the two first limiting grooves, and the second support seats are slidably arranged inside the other two first limiting grooves.
[0007] Preferably, a transmission rod is fixedly welded to the center of each of the two opposite sides of the first support bases. A limiting slider is fixedly welded to the outer surface of each of the two transmission rods. A sliding rod is fixedly welded to the center of the top of each of the two first support bases. Both sliding rods slide through to the top of the support platform. A stop block is fixedly welded to the top of each of the two sliding rods. A buffer spring is fitted to the outer surface of each of the two sliding rods. One end of the buffer spring is fixedly welded to the top of the support platform, and the other end is fixedly welded to the bottom edge of the stop block.
[0008] Preferably, a threaded rod is fixedly welded to the bottom center of each of the two second support seats, and the two threaded rods slide through to the bottom of the support platform. A torque handle is rotatably connected to the bottom center of each of the two support platforms, and the torque handle is threadedly connected to the threaded rod.
[0009] Preferably, the two fixing components include two fixing platforms, both of which are fixedly welded to opposite sides of the two support platforms. The inner surface of the opposite side of each fixing platform is provided with a protective groove. A second limiting groove is provided through the opposite side of each fixing platform near the top center. The second limiting groove is slidably fitted with the limiting slider.
[0010] Preferably, connecting rods are fixedly welded to both sides of the two fixed platforms on their opposite sides, and fixing plates are fixedly welded between the opposite ends of each pair of connecting rods.
[0011] Preferably, the two transmission adjustment components include two motors, each of which is fixedly welded to the opposite side of two fixed plates. The output ends of the two motors are each welded with a rotating rod, which is rotatably connected to the fixed platform. The outer surfaces of the two rotating rods are each fixedly welded with a transmission disc.
[0012] Preferably, a clearance groove is provided through the edges of the opposite sides of the two transmission discs, and the clearance groove is fitted with the connecting rod. An arc-shaped inclined groove is provided through the top of the opposite sides of the two transmission discs, and the arc-shaped inclined groove is fitted with the transmission rod.
[0013] Beneficial effects This invention provides a rolling mill reduction adjustment device. Compared with the prior art, it has the following advantages: In this invention, by creating the arc-shaped inclined groove, the transmission disc can apply a downward sliding force to the transmission rod when it rotates. The first support seat slides downward, and the two first support seats slide downward, which can drive the upper roller to press down synchronously, causing the slide rod to slide downward. With the setting of the stop block, pressure is applied to the buffer spring, causing the buffer spring to retract inward and improve the buffering effect. By setting the sliding engagement between the limiting slider and the second limiting groove, the downward sliding process of the first support seat can be more stable, thereby improving the stability of the upper roller pressing down. Attached Figure Description
[0014] Figure 1 This utility model provides a front-view three-dimensional structural schematic diagram of a rolling mill reduction adjustment device; Figure 2 This utility model provides a side view sectional three-dimensional structural diagram of a rolling mill reduction adjustment device; Figure 3 This utility model provides a three-dimensional structural diagram of the support assembly of a rolling mill reduction adjustment device; Figure 4 This utility model provides a three-dimensional structural diagram of the fixing component of a rolling mill reduction adjustment device; Figure 5 This utility model presents a three-dimensional structural diagram of the transmission adjustment component of a rolling mill reduction adjustment device.
[0015] In the diagram: 1. Fixed base plate; 2. Support assembly; 21. Support platform; 22. First limiting slide groove; 23. First support seat; 24. Second support seat; 25. Transmission rod; 26. Limiting slider; 27. Slide rod; 28. Buffer spring; 29. Stop block; 210. Threaded rod; 211. Twist handle; 3. Fixed assembly; 31. Fixed platform; 32. Protective groove; 33. Second limiting slide groove; 34. Connecting rod; 35. Fixed plate; 4. Transmission adjustment assembly; 41. Motor; 42. Rotating rod; 43. Transmission disc; 44. Clearance groove; 45. Arc-shaped inclined groove. Detailed Implementation
[0016] 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.
[0017] Example 1: Please see Figure 1-3A rolling mill pressing adjustment device includes a fixed base plate 1, a support assembly 2, a fixing assembly 3, and a transmission adjustment assembly 4. There are two support assemblies 2, which are fixedly connected to the top two sides of the fixed base plate 1 by support rods. There are two fixing assemblies 3, which are fixedly welded to opposite sides of the two support assemblies 2. There are two transmission adjustment assemblies 4, which are fixedly welded to the two fixing assemblies 3. The two support components 2 include two support platforms 21. The two support platforms 21 are fixedly welded to the top two sides of the fixed base plate 1 by support rods. The two support platforms 21 are provided with first limiting grooves 22 through the top and bottom of their opposite sides. The first support seats 23 are slidably arranged inside the two first limiting grooves 22, and the second support seats 24 are slidably arranged inside the other two first limiting grooves 22. A transmission rod 25 is fixedly welded to the center of each of the two first support seats 23 on opposite sides. A limiting slider 26 is fixedly welded to the outer surface of each of the two transmission rods 25. A sliding rod 27 is fixedly welded to the center of the top of each of the two first support seats 23. Both sliding rods 27 slide through to the top of the support platform 21. A stop block 29 is fixedly welded to the top of each of the two sliding rods 27. A buffer spring 28 is fitted on the outer surface of each of the two sliding rods 27. One end of the buffer spring 28 is fixedly welded to the top of the support platform 21, and the other end is fixedly welded to the bottom edge of the stop block 29. A threaded rod 210 is fixedly welded to the bottom center of each of the two second support seats 24. Both threaded rods 210 slide through to the bottom of the support platform 21. A torque handle 211 is rotatably connected to the bottom center of each of the two support platforms 21. The torque handle 211 is threadedly connected to the threaded rod 210. In this embodiment, the upper roller can be supported by two first support seats 23, and the lower roller can be supported by two second support seats 24. The threaded rod 210 is connected to the torque handle 211 by a threaded connection. When the two torque handles 211 are rotated, the threaded rod 210 can be extended downward, thereby causing the second support seat 24 to slide downward inside the first limiting groove 22. At the same time, the lower roller can be adjusted downward. Conversely, the torque handle 211 can be rotated in the opposite direction. When the two first support seats 23 slide downward, the upper roller can be pressed downward synchronously, causing the slide rod 27 to slide downward. With the setting of the stop block 29, pressure is applied to the buffer spring 28, causing the buffer spring 28 to retract inward and improve the buffering effect.
[0018] Example 2: Please see Figure 1-5This embodiment provides a technical solution based on embodiment one: the two fixing components 3 include two fixing platforms 31, both fixing platforms 31 are fixedly welded to the opposite sides of the two support platforms 21, the inner surface of the opposite side of the fixing platform 31 is provided with a protective groove 32, and a second limiting groove 33 is provided through the opposite side of the two fixing platforms 31 near the top center, and the second limiting groove 33 is slidably fitted with the limiting slider 26; Two fixed platforms 31 are fixedly welded to each other on the opposite side near both sides, and fixed plates 35 are fixedly welded between the opposite ends of each pair of connecting rods 34. The two transmission adjustment components 4 include two motors 41, which are respectively fixedly welded to the opposite side of the two fixed plates 35. The output ends of the two motors 41 are each welded with a rotating rod 42, which is rotatably connected to the fixed platform 31. The outer surfaces of the two rotating rods 42 are each fixedly welded with a transmission disc 43. Two transmission discs 43 are provided with relief grooves 44 through the edges near the sides on opposite sides. The relief grooves 44 are fitted with the connecting rod 34. Two transmission discs 43 are provided with arc-shaped inclined grooves 45 through the top on opposite sides. The arc-shaped inclined grooves 45 are fitted with the transmission rod 25. In this embodiment, the starting of the two motors 41 can drive the rotating rod 42 and the transmission disk 43 to rotate. The opening of the clearance groove 44 prevents it from colliding with the connecting rod 34, providing a clearance effect. The opening of the arc-shaped inclined groove 45 allows the transmission disk 43 to apply a downward sliding force to the transmission rod 25 when it rotates. This causes the first support seat 23 to slide downward. The sliding engagement of the limiting slider 26 with the second limiting groove 33 makes the downward sliding process of the first support seat 23 more stable.
[0019] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0020] During operation, the program is first set by the PLC. When the two knobs 211 are turned, the threaded rod 210 can be driven to extend downward, thereby driving the second support seat 24 to slide downward inside the first limit slide groove 22. At the same time, the lower roller can be adjusted downward. Conversely, the same principle applies; the knobs 211 can be turned in the opposite direction. The starting of the two motors 41 can drive the rotating rod 42 and the transmission disc 43 to rotate. The opening of the clearance groove 44 will not collide with the connecting rod 34, providing a clearance effect. The opening of the arc-shaped inclined groove 45 can apply a downward sliding force to the transmission rod 25 when the transmission disc 43 rotates. The first support 23 slides downward, and the two first support 23s slide downward, which can drive the upper roller to press down synchronously, so that the slide rod 27 slides down. With the setting of the stop block 29, pressure is applied to the buffer spring 28, so that the buffer spring 28 retracts inward, improving the buffering effect.
[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply 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 process, method, article, or apparatus.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rolling mill reduction adjustment device, comprising a fixed base plate (1), and further comprising a support assembly (2), a fixing assembly (3), and a transmission adjustment assembly (4), characterized in that: There are two support components (2), and the two support components (2) are fixedly connected to the top two sides of the fixed base plate (1) by support rods. There are two fixing components (3), and the two fixing components (3) are fixedly welded to the opposite side of the two support components (2). There are two transmission adjustment components (4), and the two transmission adjustment components (4) are fixedly welded to the two fixing components (3).
2. The rolling mill reduction adjustment device according to claim 1, characterized in that: The two support components (2) include two support platforms (21). The two support platforms (21) are fixedly welded to the top two sides of the fixed base plate (1) by support rods. The two support platforms (21) are provided with first limiting grooves (22) through the top and bottom of their opposite sides. The two first limiting grooves (22) are provided with first support seats (23) slidingly inside. The other two first limiting grooves (22) are provided with second support seats (24) slidingly inside.
3. The rolling mill reduction adjustment device according to claim 2, characterized in that: A transmission rod (25) is fixedly welded to the center of each of the two first support seats (23) on opposite sides. A limiting slider (26) is fixedly welded to the outer surface of each of the two transmission rods (25). A sliding rod (27) is fixedly welded to the center of the top of each of the two first support seats (23). The two sliding rods (27) slide through to the top of the support platform (21). A stop block (29) is fixedly welded to the top of each of the two sliding rods (27). A buffer spring (28) is fitted on the outer surface of each of the two sliding rods (27). One end of the buffer spring (28) is fixedly welded to the top of the support platform (21), and the other end is fixedly welded to the bottom edge of the stop block (29).
4. A rolling mill reduction adjustment device according to claim 2, characterized in that: Two threaded rods (210) are fixedly welded to the bottom center of each of the two second support seats (24). The two threaded rods (210) slide through to the bottom of the support platform (21). A torque handle (211) is rotatably connected to the bottom center of each of the two support platforms (21). The torque handle (211) is threadedly connected to the threaded rod (210).
5. A rolling mill reduction adjustment device according to claim 1, characterized in that: The two fixing components (3) include two fixing platforms (31), both fixing platforms (31) are fixedly welded to the opposite side of the two support platforms (21), and the inner surface of the opposite side of the fixing platform (31) is provided with a protective groove (32). The opposite side of the two fixing platforms (31) is provided with a second limiting slide groove (33) near the top center, and the second limiting slide groove (33) is slidably engaged with the limiting slider (26).
6. A rolling mill reduction adjustment device according to claim 5, characterized in that: Connecting rods (34) are fixedly welded to the opposite side of each of the two fixed platforms (31), and fixing plates (35) are fixedly welded to the opposite ends of each pair of connecting rods (34).
7. A rolling mill reduction adjustment device according to claim 1, characterized in that: The two transmission adjustment components (4) include two motors (41), which are respectively fixedly welded to the opposite side of two fixed plates (35). The output ends of the two motors (41) are each welded with a rotating rod (42), which is rotatably connected to the fixed platform (31). The outer surfaces of the two rotating rods (42) are each fixedly welded with a transmission disc (43).
8. A rolling mill reduction adjustment device according to claim 7, characterized in that: Each of the two transmission discs (43) has a relief groove (44) through it near the edges on both sides of its opposite side. The relief groove (44) fits into the connecting rod (34). Each of the two transmission discs (43) has an arc-shaped inclined groove (45) through it near the top on its opposite side. The arc-shaped inclined groove (45) fits into the transmission rod (25).