Aluminum alloy rod continuous rolling mill unit with adjustable rollers
By combining the threaded rod and the inclined plane, the problem of inaccurate roll position adjustment in existing aluminum alloy rod continuous rolling mills is solved, realizing precise roll lifting control and self-locking function, adapting to multi-size rolling, and reducing equipment cost and maintenance complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU NEW DONGDIAN ELECTROTECHNICAL MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
The existing roll position adjustment method of aluminum alloy bar rolling mills leads to reduced transmission accuracy and the risk of slippage. In addition, hydraulic transmission increases the cost and complexity of the cooling system and limits the diversity of product sizes.
The design employs a threaded rod and a beveled surface, which transmits force through the rigid contact between the beveled surface and the mounting shaft, enabling precise control of the roll's lifting and lowering. The self-locking function prevents the roll from moving, resulting in a simple structure that reduces manufacturing and maintenance costs.
It enables precise adjustment of the roll position, adapts to the rolling requirements of aluminum alloy rods of different sizes, improves transmission accuracy and safety, and reduces equipment cost and maintenance complexity.
Smart Images
Figure CN224237878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of continuous rolling mill technology, specifically to an aluminum alloy rod continuous rolling mill unit with adjustable rolls. Background Technology
[0002] Aluminum alloy bar continuous rolling mills roll cast billets into finished products through multiple sets of rolls. For example, in a strip continuous rolling mill disclosed in Chinese patent literature (application number: CN202320651931.2), the positions of two sets of work rolls cannot be adjusted. Continuous rolling mills with this type of work roll can only roll products of one size, limiting their application range. The common adjustment methods for existing continuous rolling mill rolls are chain rotation or hydraulic transmission to adjust the position of the work rolls and roll products of multiple sizes. Chain wear reduces transmission accuracy, and chain transmission carries the risk of slippage. Hydraulic transmission generates heat, which increases the cost of the hydraulic transmission cooling system, given the already high operating temperature of continuous rolling mills.
[0003] Therefore, we propose an aluminum alloy rod continuous rolling mill unit with adjustable rolls. Utility Model Content
[0004] The purpose of this invention is to provide an aluminum alloy rod continuous rolling mill unit with adjustable rolls to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum alloy rod continuous rolling mill unit with adjustable rolls, including a frame, a roughing mill, a finishing mill, a cavity, and rolls. The finishing mill is provided with a through groove, and a guide groove is provided on the inner wall of the through groove. An installation shaft is provided in the through groove, and a guide rod is provided on the installation shaft. The upper and lower surfaces on the right side of the installation shaft are both set as inclined surfaces. A first push plate is provided on the bottom right side of the installation shaft, and a second push plate is provided on the upper right side of the installation shaft. A limit rod is provided on the top of the second push plate, and a first connecting rod is provided on the right end of the second push plate. A threaded rod is provided on the right end of the first connecting rod. A threaded hole that mates with the threaded rod is provided on the right side of the finishing mill. A nut is provided on the right end of the threaded rod. A second connecting rod is provided on the right end of the first push plate, and a first rotating rod is connected to the right end of the second connecting rod. A positioning shaft is provided on the top of the first rotating rod, and a second rotating rod is provided on the top of the positioning shaft.
[0006] Furthermore, the top left side of the first push plate and the bottom left side of the second push plate are both set as inclined surfaces that cooperate with each other.
[0007] Furthermore, a sliding groove is provided on the inner wall of the top of the cavity, and the upper part of the limiting rod is slidably connected to the inner wall of the sliding groove.
[0008] Furthermore, the first rotating rod includes a sleeve and a support rod, with the support rod installed inside the sleeve.
[0009] Furthermore, the left end of the threaded rod is connected to the left end of the first connecting rod via a bearing.
[0010] Furthermore, the end of the positioning shaft is connected to the inner wall of the cavity via a bearing, and one end of the first rotating rod and the second rotating rod are fixedly connected to the positioning shaft.
[0011] Furthermore, the first rotating rod and the second connecting rod are connected by a pin, and the second rotating rod and the first connecting rod are connected by a pin.
[0012] Furthermore, the roll is mounted on the left end of the mounting shaft, and the roll is connected to the mounting shaft via a bearing.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The rotation of the threaded rod drives the first and second push plates to move. The inclined surfaces on the first and second push plates cooperate with the inclined surfaces on the mounting shaft, causing the mounting shaft to move up and down. The rotation of the threaded rod drives the first and second push plates to move. When the angle of the inclined surfaces is less than the friction angle between the first and second push plates and the mounting shaft, the first and second push plates cannot push the threaded rod to rotate. This device achieves a self-locking function, preventing the roll from moving and rolling the aluminum alloy rod. Simultaneously, this device has a simple structure, reducing manufacturing and maintenance costs. The rigid contact between the inclined surfaces and the connecting rod transmits force, making it suitable for high-load rolling scenarios of aluminum alloy rods. Furthermore, the inclined surfaces convert the linear motion of the horizontal connecting rod into vertical lifting, allowing precise control of the roll's lifting speed and stroke. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the roll mounting structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the mounting shaft installation structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the guide rod installation structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the installation structure of the limiting rod of this utility model;
[0019] Figure 6 This is a schematic diagram of the rotating rod structure of this utility model.
[0020] In the diagram: 1. Frame; 2. Roughing mill; 3. Finishing mill; 4. Roll; 5. Through groove; 6. Guide groove; 7. Mounting shaft; 8. Guide rod; 9. Inclined surface; 10. First push plate; 11. Second push plate; 12. Limiting rod; 121. Slide groove; 13. First connecting rod; 14. Threaded rod; 15. Threaded hole; 16. Nut; 17. Second connecting rod; 18. First rotating rod; 181. Sleeve; 182. Support rod; 19. Positioning shaft; 20. Second rotating rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-6This utility model provides a technical solution: an aluminum alloy rod continuous rolling mill unit with adjustable rolls, including a frame 1, a roughing mill 2, a finishing mill 3, a cavity 31, and rolls 4. The finishing mill 3 is provided with a through groove 5, and a guide groove 6 is provided on the inner wall of the through groove 5. An installation shaft 7 is provided inside the through groove 5, and a guide rod 8 is provided on the installation shaft 7. Both the upper and lower surfaces on the right side of the installation shaft 7 are sloped 9. A first push plate 10 is provided on the bottom right side of the installation shaft 7, and a second push plate 11 is provided on the upper right side of the installation shaft 7. A limit rod 12 is provided at the top of the second push plate 11, and a first connecting rod 13 is provided at the right end of the second push plate 11. A threaded rod 14 is provided at the right end of the first connecting rod 13. A rod corresponding to the threaded rod 14 is provided on the right side of the finishing mill 3. The threaded hole 15 is fitted with a nut 16 at the right end of the threaded rod 14. A second connecting rod 17 is located at the right end of the first push plate 10, and a first rotating rod 18 is connected to the right end of the second connecting rod 17. A positioning shaft 19 is located at the top of the first rotating rod 18, and a second rotating rod 20 is located at the top of the positioning shaft 19. By using a tool (e.g., a wrench) to rotate the nut 16, the nut 16 drives the threaded rod 14 to rotate. The threaded rod 14 engages with the threaded hole 15, and moves to the left. Simultaneously, the first connecting rod 13 drives the second push plate 11 to move to the right. The first connecting rod 13 drives the second rotating rod 20 to rotate to the right around the positioning shaft 19. The second rotating rod 20 drives the positioning shaft 19 to rotate, and the positioning shaft 19 drives the first rotating rod 18. Rotating to the left, the first rotating rod 18 pushes the first push plate 10 to the left via the second connecting rod 17. The top left side of the first push plate 10 is set with an inclined surface, which cooperates with the inclined surface 9 set on the mounting shaft 7. The first push plate 10 pushes the mounting shaft 7 to move upward, causing the rolls 4 set on the upper part of the finishing mill 3 to move upward, changing the distance between the rolls 4 set on the finishing mill 3. The finishing mill 3 rolls aluminum alloy rods of different sizes. If the threaded rod 14 is rotated in the opposite direction, the second push plate 11 moves to the left, and at the same time the first push plate 10 moves to the right, resetting the rolls 4 set on the upper part of the finishing mill 3. The rotation of the threaded rod 14 drives the first push plate 10 and the second push plate 11 to move. The inclined surfaces on plate 10 and the second push plate 11 cooperate with the inclined surfaces on the mounting shaft 7, causing the mounting shaft 7 to move up and down. The first push plate 10 and the second push plate 11 are driven to move by the rotation of the threaded rod 14. When the angle of the inclined surfaces is less than the friction angle between the first push plate 10 and the second push plate 11 and the mounting shaft 9, the first push plate 10 and the second push plate 11 cannot push the threaded rod 14 to rotate. This device achieves a self-locking function, so that the roll 4 will not move and the aluminum alloy rod is rolled. At the same time, this device has a simple structure and transmits force through the rigid contact between the inclined surfaces and the connecting rod. It is suitable for high-load scenarios where the roll 4 rolls the aluminum alloy rod. Moreover, the inclined surfaces convert the linear motion of the horizontal connecting rod into vertical lifting and lowering, which can precisely control the lifting speed and stroke of the roll 4.
[0023] Reference embodiment: The top left side of the first push plate 10 and the bottom left side of the second push plate 11 are both set with inclined surfaces 9 to cooperate with each other. When the threaded rod 4 rotates, it drives the first push plate 10 and the second push plate 11 to move. The inclined surfaces set on the first push plate 10 and the second push plate 11 cooperate with the inclined surfaces 9 set on the mounting shaft 7, so that the mounting shaft 7 can be raised and lowered.
[0024] Reference embodiment: A groove 121 is provided on the inner wall of the top of the cavity 31, and the upper part of the limiting rod 12 is slidably connected to the inner wall of the groove 121 to stabilize the movement of the second push plate 11.
[0025] Reference embodiment: The first rotating rod 18 includes a sleeve 181 and a support rod 182. The support rod 182 is installed inside the sleeve 181. The second rotating rod 20 has the same structure as the first rotating rod 18. When the positioning shaft 19 drives the first rotating rod 18 and the second rotating rod 20 to rotate, the support rod 182 retracts into the sleeve 181.
[0026] Reference embodiment: The left end of the threaded rod 14 is connected to the left end of the first connecting rod 13 through a bearing. The threaded rod 14 rotates through the bearing, which does not restrict the movement of the first connecting rod 13.
[0027] Reference embodiment: The end of the positioning shaft 19 is connected to the inner wall of the cavity 31 by a bearing. The positioning shaft 19 rotates through the bearing, driving the first rotating rod 18 and the second rotating rod 20 to rotate. One end of the first rotating rod 18 and the second rotating rod 20 is fixedly connected to the positioning shaft 19. The first rotating rod 18 is connected to the second connecting rod 17 by a pin. The second rotating rod 20 is connected to the first connecting rod 13 by a pin. When the first connecting rod 13 and the second connecting rod 17 move under the drive of the threaded rod 14, one end of the first rotating rod 18 and the second rotating rod 20 rotates through the pin.
[0028] Reference embodiment: Roller 4 is installed on the left end of mounting shaft 7, and roller 4 is connected to mounting shaft 7 by bearing.
[0029] 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 continuous aluminum alloy bar rolling mill unit with adjustable rolls, comprising a stand (1), a roughing mill (2), a finishing mill (3), a cavity (31), and rolls (4), characterized in that: The finishing mill (3) is provided with a through groove (5), and a guide groove (6) is provided on the inner wall of the through groove (5). An installation shaft (7) is provided in the through groove (5), and a guide rod (8) is provided on the installation shaft (7). The upper and lower surfaces on the right side of the installation shaft (7) are both set as inclined surfaces (9). A first push plate (10) is provided on the bottom right side of the installation shaft (7), and a second push plate (11) is provided on the upper right side of the installation shaft (7). A limit rod (12) is provided on the top of the second push plate (11), and a first limit rod (12) is provided on the right end of the second push plate (11). The first connecting rod (13) has a threaded rod (14) at its right end. The right side of the finishing mill (3) has a threaded hole (15) that mates with the threaded rod (14). The right end of the threaded rod (14) has a nut (16). The right end of the first push plate (10) has a second connecting rod (17). The right end of the second connecting rod (17) is connected to a first rotating rod (18). The top of the first rotating rod (18) has a positioning shaft (19). The top of the positioning shaft (19) has a second rotating rod (20).
2. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The top left side of the first push plate (10) and the bottom left side of the second push plate (11) are both set as inclined surfaces (9) to cooperate with each other.
3. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The cavity (31) has a sliding groove (121) on its top inner wall, and the upper part of the limiting rod (12) is slidably connected to the inner wall of the sliding groove (121).
4. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The first rotating rod (18) includes a sleeve (181) and a support rod (182), the support rod (182) being installed inside the sleeve (181).
5. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The left end of the threaded rod (14) is connected to the left end of the first connecting rod (13) via a bearing.
6. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The end of the positioning shaft (19) is connected to the inner wall of the cavity (31) by a bearing, and one end of the first rotating rod (18) and the second rotating rod (20) are fixedly connected to the positioning shaft (19).
7. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The first rotating rod (18) is connected to the second connecting rod (17) by a pin, and the second rotating rod (20) is connected to the first connecting rod (13) by a pin.
8. The aluminum alloy bar continuous rolling mill unit with adjustable rolls according to claim 1, characterized in that: The roller (4) is installed on the left end of the mounting shaft (7), and the roller (4) and the mounting shaft (7) are connected by bearings.