A quick roll changing device for a copper strip rolling mill work roll

Abstract

The utility model relates to non ferrous metal calendering technical field discloses a quick roll changing device of copper strip rolling mill work roll, including machine body, work roll and clamping mechanism, clamping mechanism includes fixed block fixed connection in machine body, the pull rod of sliding wear in fixed block, the pull rod of one end connection pull rod, two long rods of rotating connection in pull rod through fixed peg, and the fixed assembly of sliding connection in the other end of long rod through bolt. Fixed assembly includes fixed ring and two clamping blocks for clamping work roll. By pulling pull rod, linkage through pull rod and long rod, make fixed assembly drive clamping block to move, realize quick clamping and release to work roll. The utility model discloses through clamping mechanism to replace traditional bolt fixation, the roll changing time of remarkable shortening has reduced the labor intensity, simultaneously, the setting of proofreading mechanism can real -time correction copper band position, effectively promoted product quality.

Description

Technical Field

[0001] This utility model relates to the field of non-ferrous metal rolling processing technology, and in particular to a quick roll changing device for the work rolls of a copper strip rolling mill. Background Technology

[0002] Copper strip rolling mills are key equipment in the field of metal pressure processing. Their core component, the work rolls, comes into direct contact with the copper strip, achieving precise control over the strip thickness through immense rolling force. During prolonged high-intensity rolling, the surface of the work rolls inevitably experiences wear, fatigue, or damage. To ensure the surface quality and dimensional accuracy of the copper strip products, the work rolls must be replaced periodically.

[0003] In current technical practices, work rolls are typically fixed to bearing seats or fixed positions on the rolling mill body using multiple large, high-strength bolts. While this fixing method provides reliable locking force, its drawbacks are also quite obvious during roll changing operations. Maintenance personnel need to use specialized tools to loosen or tighten each bolt one by one, a process that is not only cumbersome but also consumes a great deal of physical strength and time.

[0004] The time spent on roll changing operations falls under the non-production auxiliary time of the rolling mill. Excessive roll changing time directly leads to increased mill downtime, thereby reducing the effective operating rate of the equipment and the overall production line capacity. Especially in production conditions requiring frequent roll changes, this efficiency bottleneck caused by the traditional fixed method becomes particularly prominent, directly affecting the production efficiency of enterprises. Therefore, this utility model proposes a rapid roll changing device for copper strip rolling mill work rolls to solve the shortcomings of the existing technology. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick roll changing device for copper strip mill work rolls, aiming to improve the problem that some copper strip mill work rolls require disassembling and reassembling the fixing bolts one by one during replacement, which is cumbersome.

[0006] This utility model provides a quick roll changing device for the work roll of a copper strip rolling mill, including a machine body and a work roll detachably installed on the machine body; and a clamping mechanism for clamping or releasing the work roll; the clamping mechanism includes a fixed block fixedly connected to the machine body, a pull rod slidably passing through the fixed block, a traction rod fixedly connected to the pull rod at one end, two long rods, and a fixing assembly; one end of each of the two long rods is rotatably connected to the other end of the traction rod by fixing bolts; the fixing assembly is slidably connected to the other end of the two long rods by bolts, and the fixing assembly itself consists of a fixing ring and two clamping blocks, the bolts are rotatably connected to the fixing ring, and the two clamping blocks are fixedly connected to the outer wall of the fixing ring, and the two clamping blocks are arranged opposite each other to clamp the work roll, forming a complete quick clamping and releasing linkage structure.

[0007] Preferably, the other end of the long rod is provided with an elongated groove in which the bolt slides. The bolt slides along the length of the elongated groove, which can accurately drive the fixing component to produce a preset displacement, ensuring the smoothness and guidance of the opening and closing action of the clamping mechanism.

[0008] Preferably, the inner surface of the clamping block facing the working roller is provided with an arc-shaped clamping surface that matches the outer peripheral surface of the working roller. This arc-shaped surface design increases the contact area during clamping, making the clamping force distribution more uniform, thereby improving the stability and reliability of clamping.

[0009] Preferably, the device also includes a base plate on which the machine body is fixedly mounted; the device further includes a calibration mechanism, which is mounted on the base plate and located on one side of the working roller, for correcting the position of the copper strip during equipment operation, thus integrating the functions of quick roller change and online quality control.

[0010] Preferably, the calibration mechanism includes two fixed plates that are spaced apart from each other, two connecting rods that are parallel to each other between the two fixed plates, and two limiting plates that are movably disposed between the two connecting rods. The edge of the copper strip can be effectively limited by adjusting the spacing of the limiting plates.

[0011] Preferably, the calibration mechanism also includes a base block fixedly connected to the middle of the two connecting rods, a connecting block fixed to the base block by a connecting column, and two movable rods. These components together constitute the core linkage mechanism for driving the movement of the limiting plate.

[0012] Preferably, the two ends of the two movable rods are rotatably connected to the outer side of the connecting block and the inner sidewalls of the two limiting plates, forming a precise linkage structure that can efficiently convert the linear motion of the bottom block into the synchronous opening and closing motion of the two limiting plates.

[0013] Preferably, the power source of the calibration mechanism includes a cylinder and a push rod; the cylinder is installed between one of the fixed plates and the base block, and the output end of the push rod abuts against the base block to drive its movement, providing a stable and reliable driving force for the precise adjustment of the entire calibration mechanism.

[0014] This utility model has the following beneficial effects: 1. This utility model, by setting up a clamping mechanism consisting of a pull rod, a traction rod, a long rod and a fixing component, replaces the traditional bolt fixing method with a fast clamping and releasing action. It solves the problem that in the prior art, it is necessary to disassemble and install bolts one by one when changing work rolls, which is cumbersome, time-consuming and labor-intensive. It achieves the technical effects of simplifying roll changing operation, significantly shortening roll changing auxiliary time, reducing the labor intensity of workers and improving equipment operating rate.

[0015] 2. This utility model solves the problem that copper strip is prone to deviation due to uneven force during the rolling process, which leads to defects such as scratches and uneven thickness on the product surface. By adding a calibration mechanism driven by a cylinder and precisely adjusting the spacing of the limiting plates through a linkage system, this invention achieves the technical effect of real-time online calibration of the copper strip, ensuring that it always operates stably in the center, and effectively improving the processing accuracy and quality of the product.

[0016] 3. This utility model integrates a quick roller changing mechanism with an online calibration mechanism into one unit. The overall structure is reasonably and compactly designed with a high degree of functional integration. While improving the efficiency of equipment maintenance and replacement, it also takes into account the product quality control during the production process, and has strong practicality and industrial promotion value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a quick roll changing device for a copper strip mill work roll proposed in this utility model; Figure 2 This is a schematic diagram of the working roll of a quick roll changing device for a copper strip mill proposed in this utility model. Figure 3 This is a schematic diagram of the structure of the base plate of a quick roll changing device for a copper strip mill work roll proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the limiting plate of a quick roll changing device for a copper strip mill work roll proposed in this utility model.

[0018] Legend: 1. Organism; 2. Clamping mechanism; 21. Fixing block; 22. Pull rod; 23. Traction rod; 24. Fixing bolt; 25. Long rod; 26. Bolt; 27. Fixing component; 271. Fixing ring; 272. Clamping block; 3. Calibration mechanism; 31. Fixed plate; 32. Connecting rod; 33. Limiting plate; 34. Movable rod; 35. Connecting block; 36. Connecting column; 37. Base block; 38. Cylinder; 39. Push rod; 4. Working roller; 5. Base plate. Detailed Implementation

[0019] 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.

[0020] Example: Reference Figures 1 to 5 This utility model provides a quick roll changing device for copper strip mill work rolls, which aims to solve the problem that the work rolls of copper strip mills are fixed by bolts in the prior art, resulting in cumbersome roll changing operations and low efficiency.

[0021] like Figure 1 As shown, the device includes a base plate 5 and a body 1 fixedly mounted on the base plate 5. The working roller 4 is detachably installed inside the body 1. The core innovation of the device lies in the clamping mechanism 2 for quickly clamping or releasing the working roller 4. Specifically, the clamping mechanism 2 includes a fixing block 21 fixedly connected to the body 1, and the fixing block 21 has a through hole for the pull rod 22 to slide through. One end of the pull rod 22 is fixedly connected to a traction rod 23. The other end of the traction rod 23 is rotatably connected to one end of two long rods 25 through a fixing bolt 24. The other ends of the two long rods 25 are opened... There is an elongated groove in which the bolt 26 slides; the fixing component 27 is slidably connected to the other end of the two long rods 25 by the bolt 26; the fixing component 27 includes a fixing ring 271 and two clamping blocks 272. The bolt 26 is rotatably connected to the fixing ring 271, while the two clamping blocks 272 are fixedly connected to the outer wall of the fixing ring 271. The two clamping blocks 272 are arranged opposite to each other, and their inner surface facing the working roller 4 is provided with an arc-shaped clamping surface that matches the outer peripheral surface of the working roller 4, so as to achieve stable and large-area contact clamping of the working roller 4.

[0022] When a pulling force is applied to the pull rod 22 in a direction away from the traction rod 23, the pull rod 22 drives the traction rod 23 to move synchronously. The traction rod 23 then pulls one end of the two long rods 25 through the fixing bolt 24. Since the other ends of the two long rods 25 are slidably connected to the fixing component 27 by the bolt 26, the pulling action will force the two long rods 25 to move closer to each other with the fixing bolt 24 as the pivot point. As the other ends of the long rods 25 move closer, the bolt 26 sliding in the elongated groove will drive the fixing component 27 to move in a direction away from the working roller 4, so that the two clamping blocks 272 fixedly connected to the fixing ring 271 will separate from each other, thereby releasing the clamping state of the working roller 4. At this time, the working roller 4 can be easily removed from the machine body 1 or replaced. Conversely, when a reverse thrust is applied to the pull rod 22, the above mechanism produces the opposite linkage effect. The two clamping blocks 272 will move towards each other and finally tightly clamp the working roller 4, completing the rapid locking.

[0023] Reference Figure 1 and Figure 3 The calibration mechanism 3 is installed on the base plate 5 and located on one side of the working roller 4. It mainly consists of a fixed plate 31, a connecting rod 32, a limiting plate 33, a movable rod 34, a connecting block 35, a connecting column 36, a bottom block 37, a cylinder 38, and a push rod 39. Specifically, two fixed plates 31 are arranged facing each other at intervals, and two connecting rods 32 are arranged in parallel between the two fixed plates 31. Two limiting plates 33 are movably arranged between the two connecting rods 32, and their spacing is used to limit the movement range of the copper strip.

[0024] Reference Figure 3 and Figure 4 A base block 37 is fixedly connected to the middle of the two connecting rods 32; a connecting block 35 is fixedly connected to the base block 37 via a connecting column 36; the two ends of the two movable rods 34 are respectively rotatably connected to the outer side of the connecting block 35 and the inner sidewall of the two limiting plates 33, forming a precise linkage structure; a cylinder 38 is installed between one of the fixed plates 31 and the base block 37, and its output power is realized through a push rod 39. The output end of the push rod 39 abuts against the base block 37. By pushing or pulling the base block 37, the entire linkage structure can be driven to move.

[0025] The implementation principle of this application embodiment is as follows: Most machine bodies 1 use screws to fix the working roller 4, which is time-consuming and laborious to replace. The screws are replaced with a clamping mechanism 2, which can quickly install and disassemble. When replacing the working roller 4, the pull rod 22 passing through the fixing block 21 is pulled. The traction rod 23 fixedly connected to the other end of the pull rod 22 will pull the long rod 25, which is rotatably connected to both ends by the fixing bolt 24, backward. The other end of the long rod 25 is slidably connected to the fixing component 27 by the bolt 26. At this time, the fixing ring 271 connected by the bolt 26 will disperse the two clamping blocks 272 to both sides. The clamping blocks 272 are released to replace the fixing of the working roller 4.

[0026] When the working roller 4 operates on the copper sheet, it may shift, causing defects in the produced copper sheet. To solve this problem, a calibration mechanism 3 is installed next to the working roller 4 on the base plate 5. There are two connecting rods 32 between the two fixed plates 31. There is a base block 37 in the middle of the connecting rods 32. A connecting column 36 is fixedly connected to the middle of the base block 37 to connect the connecting block 35. Two movable rods 34 are rotatably connected to the two limiting plates 33 at both ends of the connecting block 35. There is a cylinder 38 and a push rod 39 between the bottom of one of the fixed plates 31 and the base block 37. When the cylinder 38 drives the push rod 39, the two limiting plates 33 will change their angle with the rotation of the connecting block 35 and the movable rods 34, thereby adjusting the distance between the two limiting plates 33 and correcting the copper sheet between the working rollers 4. This ensures that the copper sheet always stays in the center position during operation, effectively avoiding surface defects caused by shift, and improving processing accuracy and product quality.

Claims

1. A quick roll changing device for work rolls of a copper strip rolling mill, comprising: The machine body (1) and the working roller (4) detachably mounted on the machine body (1); The device is characterized in that it further includes a clamping mechanism (2) for clamping or releasing the working roller (4). The clamping mechanism (2) includes a fixed block (21) fixedly connected to the body (1), a pull rod (22) slidably passing through the fixed block (21), a traction rod (23) fixedly connected to the pull rod (22) at one end, and two long rods (25). Fixing component (27); one end of each of the two long rods (25) is rotatably connected to the other end of the traction rod (23) by fixing bolts (24), and the fixing component (27) is slidably connected to the other end of the two long rods (25) by bolts (26); The fixing component (27) includes a fixing ring (271) and two clamping blocks (272). The bolt (26) is rotatably connected to the fixing ring (271). The two clamping blocks (272) are fixedly connected to the outer wall of the fixing ring (271), and the two clamping blocks (272) are arranged opposite to each other to clamp the working roller (4).

2. The quick roll changing device for work rolls of a copper strip rolling mill according to claim 1, characterized in that, The other end of the long rod (25) is provided with an elongated groove in which the bolt (26) slides, and the bolt (26) slides along the length of the elongated groove to drive the fixing component (27) to move.

3. The quick roll changing device for work rolls of a copper strip rolling mill according to claim 1, characterized in that, The clamping block (272) has an arc-shaped clamping surface on its inner surface facing the working roller (4) that is adapted to the outer peripheral surface of the working roller (4) to increase the stability of clamping and the contact area.

4. A quick roll changing device for work rolls of a copper strip rolling mill according to claim 1, characterized in that, It also includes a base plate (5), the machine body (1) is fixedly installed on the base plate (5), and the device also includes a calibration mechanism (3), the calibration mechanism (3) is installed on the base plate (5) and is located on one side of the working roller (4).

5. A quick roll changing device for work rolls of a copper strip rolling mill according to claim 4, characterized in that, The calibration mechanism (3) includes two fixed plates (31) arranged at intervals facing each other, two connecting rods (32) erected in parallel between the two fixed plates (31), and two limiting plates (33) movably arranged between the two connecting rods (32).

6. A quick roll changing device for work rolls of a copper strip rolling mill according to claim 5, characterized in that, The calibration mechanism (3) also includes a base block (37) fixedly connected to the middle of the two connecting rods (32), a connecting block (35) fixed to the base block (37) by a connecting column (36), and two movable rods (34).

7. A quick roll changing device for work rolls of a copper strip rolling mill according to claim 6, characterized in that, The two ends of the two movable rods (34) are respectively rotatably connected to the outer side of the connecting block (35) and the inner sidewall of the two limiting plates (33), forming a linkage structure for adjusting the spacing of the limiting plates (33).

8. A quick roll changing device for work rolls of a copper strip rolling mill according to claim 6, characterized in that, The calibration mechanism (3) also includes a cylinder (38) and a push rod (39). The cylinder (38) is installed between one of the fixed plates (31) and the base block (37). The output end of the push rod (39) abuts against the base block (37) to drive its movement.

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