A multi-roller rolling mill roll changing device

Abstract

The utility model discloses a kind of multi-roller rolling mill roll changing device, it is related to rolling mill equipment technical field, including adjusting structure, rotating structure and connecting structure.Adjusting structure is realized the adjustment of horizontal position and height by guide rail, directional moving device and lifting device;Rotating structure is driven connecting structure to carry out multi-angle rotation by rack and pinion drive and annular guide rail guidance;Connecting structure is docked to be replaced roll body by fixed flange, butt flange and connecting ring docking.Through the synergistic effect of adjusting structure and rotating structure, connecting structure can be flexibly adjusted position in three-dimensional space, realize the quick docking and extraction of different position roll body to multi-roller rolling mill, improve roll changing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill equipment technology, and more specifically, to a roll changing device for a multi-roll rolling mill. Background Technology

[0002] Multi-roll mills are key equipment for the precision rolling of sheet metal, widely used in the production of thin strips such as stainless steel, silicon steel, and non-ferrous metals. Roll changing is a core aspect of mill maintenance, directly impacting production efficiency and product quality. Traditional roll changing devices often employ fixed tracks or single-direction adjustment structures, relying on manual positioning, resulting in poor adaptability.

[0003] In actual production, the rolls of multi-roll mills are densely distributed and installed at various angles. Traditional roll changing devices have limited adjustment ranges in lateral, height and angle, which means that the equipment position needs to be repeatedly adjusted when connecting rolls at different positions. This is cumbersome, time-consuming and easy to cause damage to the rolls or equipment due to positioning deviations, making it difficult to meet the needs of high-efficiency and automated production. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a roll changing device for a multi-roll mill to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A roll changing device for a multi-roll mill includes an adjustment structure, a rotating structure connected to the adjustment structure, a connecting structure connected to the rotating structure, and a connecting hook for changing the rolls. The connecting structure can be adjusted in height and rotation angle through the rotating structure and the adjustment structure, thereby enabling the docking and replacement of rolls at multiple different positions in the multi-roll mill.

[0007] Furthermore, the adjustment structure includes a guide rail, a directional moving device, a first fixed plate, a lifting device, a second fixed plate, and an annular guide rail. The guide rail is fixedly connected to the lateral adjustment device, and the directional moving device is slidably connected to the guide rail. The directional moving device is connected to the first fixed plate, and the lifting device is installed on the first fixed plate. The driving end of the lifting device is connected to the second fixed plate, and the annular guide rail is connected to the second fixed plate.

[0008] Furthermore, the rotating structure includes a rotating plate, a guide groove, a connecting lug, a gear, a rack, a threaded block, a threaded rod, a drive motor, and a slide groove. The rotating plate has a guide groove, and the rotating plate is slidably connected to the annular guide rail through the guide groove. A connecting lug is fixedly connected to one end of the rotating plate, and a gear is fixedly connected to the connecting lug. The gear meshes with the rack. A threaded block is fixedly connected to one side of the rack. A threaded rod is threadedly connected to the threaded block. The threaded rod is connected to the drive motor. A slide groove is slidably connected to the rack, and the slide groove is fixedly installed on one side of the first fixed plate.

[0009] Furthermore, the connection structure includes a fixed flange, a mating flange, and a connecting ring. The fixed flange is connected to a mating flange on one side, and the mating flange is fixedly connected to a connecting ring. The fixed flange is fixedly connected to the top surface of the rotating plate.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. The adjustment structure enables precise adjustment in both lateral and vertical directions. The rotating structure achieves multi-angle rotation through gear and rack transmission. Combined with the guidance of the ring guide rail, the connecting structure can cover the complex distribution of the rolls in a multi-roll mill, solving the problem of limited adjustment range in traditional devices.

[0012] 2. By replacing manual positioning with mechanical transmission, manual intervention during the roll changing process is reduced, the docking and extraction time is shortened, the efficiency of roll changing operations is improved, and the labor intensity of operators is reduced.

[0013] 3. The directional movement device of the adjustment structure and the ring guide rail, as well as the sliding groove of the rotating structure and the meshing of the gear rack, all ensure motion accuracy. The rigid flange connection of the connecting structure ensures the stability of the roller docking, avoids equipment damage caused by positioning deviation, and improves operational safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of a multi-roll mill roll changing device according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the connecting ring of a multi-roll mill roll changing device according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment structure of a multi-roll mill roll changing device according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the rotating structure of a multi-roll mill roll changing device according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the rotating plate connection of a multi-roll mill roll changing device according to an embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of gear and rack meshing in a multi-roll mill roll changing device according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Adjustment structure; 101. Guide rail; 102. Orientation and movement device; 103. First fixed plate; 104. Lifting device; 105. Second fixed plate; 106. Annular guide rail; 2. Rotation structure; 201. Rotating plate; 202. Guide groove; 203. Connecting lug; 204. Gear; 205. Rack; 206. Threaded block; 207. Threaded rod; 208. Drive motor; 209. Slide groove; 3. Connection structure; 301. Fixed flange; 302. Butt flange; 303. Connecting ring. Detailed Implementation

[0023] 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.

[0024] According to an embodiment of the present invention, a roll changing device for a multi-roll mill is provided.

[0025] like Figure 1-6 As shown, the multi-roll mill roll changing device according to an embodiment of the present invention includes an adjustment structure 1, a rotating structure 2 connected to the adjustment structure 1, a connecting structure 3 connected to the rotating structure 2, and a connecting hook for changing the roll connected to the rotating structure 3. The connecting structure 3 can be adjusted in height and rotation angle through the rotating structure 2 and the adjustment structure 1, so as to realize the docking and replacement of rolls at multiple different positions of the multi-roll mill.

[0026] like Figure 3As shown, the adjustment structure 1 includes a guide rail 101, a directional moving device 102, a first fixed plate 103, a lifting device 104, a second fixed plate 105, and an annular guide rail 106. The guide rail 101 is fixedly connected to the lateral adjustment device. The directional moving device 102 is slidably connected to the guide rail 101. The first fixed plate 103 is connected to the directional moving device 102. The lifting device 104 is installed on the first fixed plate 103. The driving end of the lifting device 104 is connected to the second fixed plate 105. The annular guide rail 106 is connected to the second fixed plate 105.

[0027] Adjustment structure 1, as the basic adjustment unit of the roller changing device, achieves precise control of lateral position and height through the collaboration of multiple components. Guide rail 101 is fixed to the external lateral adjustment device, providing track support for the overall lateral movement. Directional movement device 102 slides along guide rail 101, driving the first fixed plate 103 and the structure above to move laterally synchronously, thereby adjusting the lateral position of connecting structure 3. Lifting device 104 installed on the first fixed plate 103 is directly connected to the second fixed plate 105. By lifting, the height of the second fixed plate 105 and the annular guide rail 106 is changed, ultimately achieving the vertical position adjustment of connecting structure 3. The annular guide rail 106 provides an annular sliding trajectory for the rotating plate 201 of rotating structure 2, ensuring the stability of the rotation. The lateral adjustment device is also associated with an external pulling device. After connecting structure 3 docks with the roller, the roller is pulled out by the overall lateral movement. Together with lifting device 104 and annular guide rail 106, it forms a three-dimensional spatial adjustment foundation, laying the positional foundation for subsequent rotation adjustment.

[0028] like Figure 4 , Figure 6 As shown, the rotating structure 2 includes a rotating plate 201, a guide groove 202, a connecting lug 203, a gear 204, a rack 205, a threaded block 206, a threaded rod 207, a drive motor 208, and a sliding groove 209. The rotating plate 201 has a guide groove 202, and the rotating plate 201 is slidably connected to the annular guide rail 106 through the guide groove 202. One end of the rotating plate 201 is fixedly connected to the connecting lug 203, and the connecting lug 203 is fixedly connected to the gear 204. The gear 204 meshes with the rack 205. One side of the rack 205 is fixedly connected to the threaded block 206, and the threaded block 206 is threadedly connected to the threaded rod 207. The threaded rod 207 is connected to the drive motor 208. The rack 205 is slidably connected to the sliding groove 209, and the sliding groove 209 is fixedly installed on one side of the first fixed plate 103.

[0029] The rotating structure 2 achieves multi-angle rotation of the connecting structure 3 through mechanical transmission to adapt to the docking positions of different rollers. The rotating plate 201 is slidably connected to the annular guide rail 106 through the guide groove 202. The connecting lug 203 at one end fixes the gear 204. The gear 204 meshes with the rack 205 to form a transmission pair. The drive motor 208 drives the threaded rod 207 to rotate, which in turn drives the threaded block 206 and the rack 205 to move linearly along the slide groove 209. The linear motion of the rack 205 is converted into the rotational motion of the gear 204, thereby... The rotating plate 201 rotates in a directional circular motion around the center of the connecting lug 203 along the annular guide rail 106. During this process, the slide groove 209 ensures the stable sliding of the rack 205 and avoids transmission deviation, while the annular guide rail 106 restricts the movement trajectory of the rotating plate 201 and ensures rotational accuracy. By adjusting the rotating structure 2, the horizontal height and lateral position of the connecting structure 3 can be flexibly changed, allowing the connecting ring 303 to dock with the roll from different directions, thus solving the problem of dense roll distribution and limited docking angle in multi-roll mills.

[0030] like Figure 1 , Figure 5 As shown, the connection structure 3 includes a fixed flange 301, a mating flange 302, and a connecting ring 303. The mating flange 302 is connected to one side of the fixed flange 301, and the connecting ring 303 is fixedly connected to the mating flange 302. The fixed flange 301 is fixedly connected to the top surface of the rotating plate 201.

[0031] The connecting structure 3 is the direct connection interface between the roll changing device and the roll to be replaced. It bears the key functions of force transmission and docking stability. The fixed flange 301 is fixed to the top of the rotating plate 201. Through the rigid connection with the docking flange 302, the angle adjustment of the rotating structure 2 and the position adjustment of the adjusting structure 1 are transmitted to the connecting ring 303. The connecting ring 303 is a direct docking component. Its inner side is designed to adapt to the connecting structure at the end of the roll. It is fixed to the roll by mechanical locking or nesting. When the adjusting structure 1 and the rotating structure 2 adjust the connecting ring 303 to the target position, the connecting ring 303 docks with the roll. At this time, the pull-out device associated with the transverse adjusting device is activated. Through the rigid transmission of the fixed flange 301 and the docking flange 302, the roll is pulled out of the rolling mill. The overall design of the connecting structure 3 must meet the requirements of high strength and high precision to ensure that no deformation or detachment occurs during the pull-out process. Its rigid connection with the rotating structure 2 and the adjusting structure 1 forms a closed-loop adjustment system, which ultimately realizes the efficient replacement of rolls at different positions and angles in a multi-roll rolling mill.

[0032] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0033] In practical applications, the guide rail 101 of the adjusting structure 1 is mounted on the lateral adjusting device. The lateral adjusting device is generally one of a hydraulic telescopic rod, an electric telescopic rod, or an actuating telescopic rod, used to perform overall lateral adjustment of the guide rail 101, thereby adjusting the lateral position of the connecting ring 303. Simultaneously, the lateral adjusting device is generally connected to a pull-out device, used to pull out the roller body after the connecting ring 303 needs to be replaced. Then, the height of the second fixed plate 105 and the connecting ring 303 is adjusted by the lifting device 104, which is generally a hydraulic or electric actuator. The height adjustment device, the rotating structure 2, can drive the rack 205 through the drive motor 208 to drive the gear 204 to rotate. The gear 204 drives the rotating plate 201 to rotate around the center of the connecting lug 203, so that the rotating plate 201 rotates in a circular direction on the annular guide rail 106, thereby changing the position of the connecting ring 303. Through the adjustment of the adjusting structure 1 and the rotating structure 2, the connecting ring 303 used to connect the rolls to be replaced can be adjusted to the actual position as needed, so that the various rolls of the rolling mill can be easily pulled out.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roll changing device for a multi-roll mill, characterized in that, It includes an adjustment structure (1), a rotating structure (2) connected to the adjustment structure (1), a connecting structure (3) connected to the rotating structure (2), a connecting hook for the replacement roller connected to the connecting structure (3), and the connecting structure (3) can adjust the height and rotation angle through the rotating structure (2) and the adjustment structure (1) to realize the docking and replacement of rollers at multiple different positions of the multi-roll mill.

2. The roll changing device for a multi-roll mill according to claim 1, characterized in that, The adjustment structure (1) includes a guide rail (101), a directional moving device (102), a first fixed plate (103), a lifting device (104), a second fixed plate (105), and a ring guide rail (106). The guide rail (101) is fixedly connected to the lateral adjustment device, and the directional moving device (102) is slidably connected to the guide rail (101). The first fixed plate (103) is connected to the directional moving device (102).

3. A roll changing device for a multi-roll mill according to claim 2, characterized in that, A lifting device (104) is installed on the first fixed plate (103), and the driving end of the lifting device (104) is connected to the second fixed plate (105). A ring guide rail (106) is connected to the second fixed plate (105).

4. A roll changing device for a multi-roll mill according to claim 3, characterized in that, The rotating structure (2) includes a rotating plate (201), a guide groove (202), a connecting lug (203), a gear (204), a rack (205), a threaded block (206), a threaded rod (207), a drive motor (208), and a sliding groove (209). The rotating plate (201) has a guide groove (202) and the rotating plate (201) is slidably connected to the annular guide rail (106) through the guide groove (202).

5. A roll changing device for a multi-roll mill according to claim 4, characterized in that, One end of the rotating plate (201) is fixedly connected to a connecting lug (203), the connecting lug (203) is fixedly connected to a gear (204), the gear (204) meshes with a rack (205), and a threaded block (206) is fixedly connected to one side of the rack (205).

6. A roll changing device for a multi-roll mill according to claim 5, characterized in that, The threaded block (206) is threadedly connected to a threaded rod (207), the threaded rod (207) is connected to a drive motor (208), and the rack (205) is slidably connected to a groove (209), which is fixedly installed on one side of the first fixed plate (103).

7. A roll changing device for a multi-roll mill according to claim 6, characterized in that, The connection structure (3) includes a fixed flange (301), a docking flange (302), and a connecting ring (303). The fixed flange (301) is connected to the docking flange (302) on one side.

8. A roll changing device for a multi-roll mill according to claim 7, characterized in that, The mating flange (302) is fixedly connected to the connecting ring (303), and the fixed flange (301) is fixedly connected to the top surface of the rotating plate (201).

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