A mill loading device

Abstract

The utility model belongs to rolling mill technical field especially relates to a rolling mill feeding device, including base, the base top surface fixedly established rolling mill with frame body, be equipped with conveying assembly in the frame body, the base top surface still fixedly established a pair of side columns, be equipped with crossbeam between the side columns, be equipped with the lifting frame of height adjustment through lifting drive component between crossbeam and base, be equipped with two interval adjustable limit plates on the lifting frame, the facing surface of limit plate is equipped with multilayer support wheel, limit plate end part is equipped with multilayer baffle, when conveying assembly can lift and convey to the rolling mill in the plate of lifting frame descending. The utility model can realize multilayer board temporary storage and automatic successive feeding, need not manual push, effectively promote the degree of automation and operation safety of feeding, can be adapted to the board of different width simultaneously, the scope of application is wide, adopts worm gear synchronous drive structure, and the feeding process is stable and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of rolling mill technology, and in particular relates to a rolling mill feeding device. Background Technology

[0002] A rolling mill is the core equipment for realizing the metal rolling process. It mainly uses the squeezing action of the work rolls to cause plastic deformation of the metal sheet to obtain the required sheet thickness and surface quality. During the rolling production process, the sheet to be processed needs to be smoothly fed into the gap between the work rolls of the rolling mill. The feeding process of small and medium-sized rolling mills is mostly completed manually, with operators supporting the sheet on the feed side of the rolling mill and gradually pushing it between the rolls.

[0003] This manual feeding method has a low degree of automation, and its feeding efficiency is greatly affected by the operator's skill level, making it difficult to match the continuous rolling production rhythm. At the same time, operators need to be close to the operating rolls, which poses safety risks such as sheet material slipping and flying, and accidental contact with the rolls. It cannot fully guarantee the personal safety of operators and has obvious limitations in its use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a rolling mill feeding device to solve the problems of low automation and safety hazards of manual feeding mentioned in the background art.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include: A rolling mill feeding device includes a base, a rolling mill fixedly mounted on the top surface of the base, a frame fixedly mounted on the top surface of the base, a conveying assembly inside the frame, a pair of side columns fixedly mounted on the top surface of the base, a crossbeam fixedly mounted between the pair of side columns, a lifting frame with adjustable height via a lifting drive assembly between the crossbeam and the base, the frame penetrating the lifting frame, two adjustable-spaced limiting plates inside the lifting frame, multiple layers of support wheels on the facing surfaces of the pair of limiting plates, a plate material capable of being placed on each layer of support wheels between the pair of limiting plates, and multiple layers of stops near the ends of the pair of limiting plates close to the rolling mill, wherein when the lifting frame moves downward, the conveying assembly can lift the plate material so that the bottom surface of the plate material is higher than the top surface of the stops.

[0006] Furthermore, the conveying assembly includes multiple drive shafts, which are rotatably mounted within the frame. Each drive shaft is fixedly equipped with two drive rollers, and all drive rollers are flush with each other and their height matches that of the working rollers of the rolling mill.

[0007] Furthermore, the lifting drive assembly includes a pair of threaded rods and two pairs of lifting blocks. The pair of threaded rods are rotatably disposed between the crossbeam and the base, and the two pairs of lifting blocks are fixedly disposed on both sides of the lifting frame and threadedly connected to the pair of threaded rods.

[0008] Furthermore, a top shaft mill feeding device is rotatably provided between the pair of side column mill feeding devices. The top shaft mill feeding device is connected to the two threaded rod mill feeding devices via bevel gears. A first servo motor mill feeding device that drives the top shaft mill feeding device to rotate is fixedly provided on one of the side column mill feeding devices.

[0009] Furthermore, the lifting frame mill feeding device is equipped with a pair of first pair of pull rod mill feeding devices that rotate vertically, and both of the limiting plate mill feeding devices are threadedly connected to the pair of first pair of pull rod mill feeding devices.

[0010] Furthermore, each of the pair of lifting block mill feeding devices on one side is rotatably equipped with a bushing mill feeding device. A guide shaft mill feeding device is slidably connected within the two bushing mill feeding devices. The guide shaft mill feeding device is rotatably positioned between the beam mill feeding device and the base mill feeding device. The bushing mill feeding device is connected to the first pair of pull screw mill feeding devices via bevel gears. A second servo motor mill feeding device is fixedly mounted on the beam mill feeding device to drive the guide shaft mill feeding device to rotate.

[0011] Furthermore, a second support plate mill feeding device is fixedly mounted on one of the side column mill feeding devices, and a first support plate mill feeding device is fixedly mounted on the frame mill feeding device. A side shaft mill feeding device is rotatably mounted within both the first and second support plate mill feeding devices. One end of the side shaft mill feeding device is connected to the guide shaft mill feeding device via a bevel gear. A second pair of wire rod mill feeding devices is rotatably mounted within the frame mill feeding device, and a sliding rod is fixedly mounted within the frame mill feeding device. The mill feeding device includes a pair of guide plate mill feeding devices slidably mounted on the sliding rod mill feeding device. The second pair of wire rod mill feeding devices is threadedly connected to the pair of guide plate mill feeding devices. The other end of the side shaft mill feeding device is connected to the second pair of wire rod mill feeding devices via bevel gears. The inner surface of the guide plate mill feeding device is flush with the inner surface of the limit plate mill feeding device. All the bevel gears have the same specifications and dimensions. The first pair of wire rod mill feeding devices and the second pair of wire rod mill feeding devices have the same specifications and dimensions.

[0012] Furthermore, the support wheels of each layer are inclined, and the stop blocks of each layer include two stops, which can block and limit the material of the corresponding layer.

[0013] Furthermore, a central shaft mill feeding device is rotatably provided inside the frame mill feeding device, and a worm gear mill feeding device is fixedly provided in the middle of each drive shaft mill feeding device. Multiple worm gear mill feeding devices are fixedly provided on the central shaft mill feeding device. The worm gear mill feeding device meshes with the worm gear mill feeding device at the corresponding position. A third servo motor mill feeding device that drives the central shaft mill feeding device to rotate is fixedly provided on the frame mill feeding device.

[0014] The beneficial effects of this utility model are: 1. Multiple plates to be processed can be temporarily stored at the same time through multi-layer support wheels. With the gradual descent of the lifting frame, the conveying components lift the plates layer by layer and transport them into the rolling mill. There is no need for manual pushing of the plates, which effectively improves the automation level of feeding, avoids close contact between operators and the rollers during feeding, eliminates safety hazards, and ensures the safety of the rolling operation. 2. The adjustable spacing limit plate is adapted to plates of different widths, and the synchronously adjustable guide plate ensures that the plates are always aligned during the conveying process, guaranteeing feeding accuracy and making it more widely applicable. 3. End-stop blocks are used to limit the temporary storage of the boards to prevent them from slipping. The lifting and jacking discharge method is stable and reliable. A single motor is used in conjunction with a worm gear structure to synchronously drive all drive rollers to ensure that the speed of each drive roller is consistent, thereby avoiding deviation and jamming during the conveying of the boards and further improving the stability of feeding. Attached Figure Description

[0015] Figure 1 This is a first-person perspective view of a three-dimensional schematic diagram of the present invention. Figure 2 This is a three-dimensional schematic diagram of the feeding device of this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a second perspective view of a three-dimensional schematic diagram of the present invention; Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0016] In the diagram: 1. Base; 2. Rolling mill; 3. First support plate; 4. Side shaft; 5. Side column; 6. First servo motor; 7. Top shaft; 8. Crossbeam; 9. Second servo motor; 10. Lifting frame; 11. Lifting block; 12. Threaded rod; 13. Limiting plate; 14. Plate; 15. Support wheel; 16. Stop block; 17. Third servo motor; 18. Frame; 19. Second pair of pull rods; 20. Guide plate; 21. Slide rod; 22. Worm gear; 23. Worm; 24. Central shaft; 25. Drive roller; 26. First pair of pull rods; 27. Drive shaft; 28. Second support plate; 29. ​​Guide shaft; 30. Bushing. Detailed Implementation

[0017] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-5 As shown, this utility model provides a rolling mill feeding device, including a base 1, a rolling mill 2 fixedly mounted on the top surface of the base 1, and a frame 18 fixedly mounted on the top surface of the base 1, located on the feeding side of the rolling mill 2. Multiple drive shafts 27 are rotatably mounted inside the frame 18, and all drive shafts 27 are arranged at equal intervals along the material conveying direction. A pair of side columns 5 are fixedly mounted on the top surface of the base 1, symmetrically arranged on both sides of the frame 18. A crossbeam 8 is fixed between the pair of side columns 5, located at the top of the side columns 5. A pair of threaded rods 12 are rotatably mounted between the crossbeam 8 and the base 1, respectively arranged close to the side columns 5 on both sides. Each threaded rod 12 is threadedly connected to a pair of lifting blocks 11. A lifting frame 10 is fixedly mounted between the two pairs of lifting blocks 11, the lifting frame 10 being a rectangular frame structure, and the frame 18 passing through the lifting frame 10.

[0019] Inside the lifting frame 10, a pair of first-pair pull rods 26 are rotatably mounted at vertical positions. These two first-pair pull rods 26 are positioned near the upper and lower edges of the lifting frame 10, respectively. Two limiting plates 13 are threaded onto each pair of first-pair pull rods 26. The limiting plates 13 are vertically arranged. When the two first-pair pull rods 26 rotate synchronously, they can drive the two limiting plates 13 to move towards or away from each other, thus adjusting the spacing. Multiple drive shafts 27 are rotatably mounted inside the frame 18. These drive shafts 27 are arranged at equal intervals along the material conveying direction. Each drive shaft 27 is fixed with two drive rollers 25. All drive rollers 25 are flush with each other and their height matches the working rollers of the rolling mill 2. The drive rollers 25 can fully contact the bottom surface of the plate 14 and provide conveying power.

[0020] Both ends of the central shaft 24 are rotatably connected to the frame 18 via bearings. The axis of the central shaft 24 is spatially perpendicular to the axis of the drive shaft 27. A worm gear 23 is fixedly installed on the outer wall of the central shaft 24 corresponding to the position of each drive shaft 27, and the worm gear 23 rotates synchronously with the central shaft 24. A worm wheel 22 is fixedly installed at the middle position of each drive shaft 27, and the axis of the worm wheel 22 coincides with the axis of the corresponding drive shaft 27. Each worm wheel 22 meshes with the corresponding worm gear 23 on the central shaft 24. A third servo motor 17 is fixedly installed on one side surface of the frame 18. The output shaft of the third servo motor 17 passes through the frame 18 and is fixedly connected to the end of the central shaft 24. When the third servo motor 17 outputs power, it drives the central shaft 24 to rotate around its own axis. All the worm gears 23 on the central shaft 24 rotate synchronously. Through the meshing transmission between the worm gears 23 and the worm wheel 22, all the drive shafts 27 are synchronously driven to rotate around their own axes, thereby ensuring that all the drive rollers 25 maintain the same speed and operate synchronously, achieving stable conveying of the plate 14.

[0021] A pair of limiting plates 13 have multiple layers of support wheels 15 rotatably mounted on their opposing surfaces. Each layer of support wheels 15 includes two rows of support wheels 15, and each row of support wheels 15 is inclined at an angle of 1 to 5 degrees, so that the plate 14 can naturally move towards the end stop 16 after being placed. Each layer of support wheels 15 can hold the plate 14. A pair of limiting plates 13 are fixedly mounted with multiple layers of stop blocks 16 near the end of the rolling mill 2. Each layer of stop blocks 16 includes two stop blocks 16, which can block and limit the plate 14 of the corresponding layer, preventing the plate 14 from sliding forward from the support wheels 15.

[0022] Each of the two lifting blocks 11 on one side is equipped with a rotatable bushing 30. A guide shaft 29 is slidably connected within each bushing 30. The guide shaft 29 is rotatably positioned between the crossbeam 8 and the base 1. The bushings 30 can slide up and down along the guide shaft 29 with the lifting blocks 11, and the rotation of the guide shaft 29 drives the bushings 30 to rotate synchronously. A first bevel gear is fixedly mounted on the bushing 30. One end of the first pair of pull rods 26 passes through the lifting frame 10 and is fixedly mounted with a second bevel gear, which meshes with the second bevel gear. A third bevel gear is fixedly mounted on the guide shaft 29 between the pair of lifting blocks 11. A second servo motor 9, which drives the guide shaft 29 to rotate, is fixedly mounted on the crossbeam 8.

[0023] A top shaft 7 is rotatably mounted between a pair of side columns 5. The top shaft 7 is located above the crossbeam 8, and a pair of driving bevel gears are fixedly mounted on the top shaft 7. The upper end of the threaded rod 12 passes through the crossbeam 8 and is fixedly mounted with a driven bevel gear. The driving bevel gear meshes with the driven bevel gear on the corresponding side. A first servo motor 6 that drives the top shaft 7 to rotate is fixed on one of the side columns 5. When the first servo motor 6 drives the top shaft 7 to rotate, it can synchronously drive the two threaded rods 12 to rotate through the bevel gear transmission, thereby driving the lifting block 11 and the lifting frame 10 to rise and fall smoothly as a whole.

[0024] A second support plate 28 is fixedly mounted on one of the side columns 5, and a first support plate 3 is fixedly mounted on the frame 18. A side shaft 4 rotatably rotates within both the first support plate 3 and the second support plate 28. A fifth bevel gear is fixedly mounted at one end of the side shaft 4, and a fourth bevel gear is fixedly mounted at the other end. The fourth bevel gear meshes with the third bevel gear. A second pair of pull rods 19 rotatably rotates within the frame 18, and a slide rod 21 is fixedly mounted within the frame 18. A pair of guide plates 20 slide on the slide rod 21. The second pair of pull rods 19 are threadedly connected to the pair of guide plates 20. A sixth bevel gear is fixedly mounted at one end of the second pair of pull rods 19, and the sixth bevel gear meshes with the fifth bevel gear. The plate 14 can pass under the second pair of pull rods 19 and the slide rod 21. The inner surface of the guide plate 20 is flush with the inner surface of the limiting plate 13. All bevel gears in this device use the same specifications and dimensions, and the first pair of pull rods 26 and the second pair of pull rods 19 use the same specifications and dimensions.

[0025] When the lifting frame 10 moves downward, the drive roller 25 can lift the corresponding layer of plate 14, so that the bottom surface of plate 14 is higher than the top surface of the stop block 16. At this time, the drive roller 25 can rotate to drive plate 14 to move towards the rolling mill 2, thus completing automatic feeding.

[0026] During operation, the distance between the limiting plate 13 and the guide plate 20 is first adjusted according to the width of the sheet material 14 to be processed. The second servo motor 9 is then started to drive the guide shaft 29 to rotate. Through the sequential transmission of the third, fourth, fifth, and sixth bevel gears, the second pair of drawbars 19 are driven to rotate, causing the pair of guide plates 20 to move towards or away from each other along the slide bar 21, synchronously adjusting the guide distance. At the same time, the guide shaft 29 drives the bushing 30 to rotate synchronously. Through the meshing transmission of the first and second bevel gears, the first pair of drawbars 26 are driven to rotate, causing the two limiting plates 13 to adjust the distance synchronously, ensuring that the inner surfaces of the limiting plates 13 and the guide plates 20 always remain flush, ensuring smooth conveying of the sheet material 14.

[0027] After adjustment, multiple plates 14 to be processed are placed sequentially on the support wheels 15 of each layer. The stop block 16 blocks and limits the ends of the plates 14 to prevent them from slipping off the support wheels 15. During the loading operation, the first servo motor 6 is started to drive the top shaft 7 to rotate. Through the meshing transmission of the active bevel gear and the driven bevel gear, the two threaded rods 12 rotate synchronously, causing the lifting block 11 to drive the lifting frame 10 to slowly descend. When the bottom plate 14 descends to contact the drive roller 25, the lifting frame 10 continues to descend, and the drive roller 25 pushes the plate 14 upward, so that the bottom surface of the plate 14 is separated from the support wheel 15 and is higher than the top surface of the stop block 16. At this time, the third servo motor 17 is started to drive the central shaft 24 to rotate. The worm gears 23 on the central shaft 24 rotate accordingly. Through the meshing worm wheel 22, all drive shafts 27 are driven to rotate synchronously, so that all drive rollers 25 can rotate at the same speed. The plate 14 is stably lifted and moved towards the rolling mill 2. After being guided and limited by the guide plate 20, it is smoothly fed into the gap between the working rollers of the rolling mill 2, completing the feeding operation of a single plate 14.

[0028] After the first layer of sheet 14 is loaded, the lifting frame 10 continues to descend. The above process is repeated to complete the loading of each layer of sheet 14 in sequence. The entire process does not require manual pushing of the sheet 14, and the degree of automation is high. Moreover, the operators do not need to be close to the rolling mill 2 during loading, which effectively improves the safety of the rolling operation.

[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.

Claims

1. A rolling mill feeding device, comprising a base (1), wherein a rolling mill (2) is fixedly mounted on the top surface of the base (1), characterized in that, The base (1) is fixedly provided with a frame (18) on the top surface. The frame (18) is provided with a conveying component. The base (1) is fixedly provided with a pair of side columns (5). A crossbeam (8) is fixed between the pair of side columns (5). A lifting frame (10) with adjustable height is provided between the crossbeam (8) and the base (1). The lifting frame (10) is provided with two adjustable spacing limit plates (13). Multiple layers of support wheels (15) are provided on the opposing surfaces of the pair of limit plates (13). Plates (14) can be placed on each layer of support wheels (15) between the pair of limit plates (13). Multiple layers of stops (16) are provided at the ends of the pair of limit plates (13) near the mill (2). When the lifting frame (10) moves downward, the conveying component can lift the plate (14) so ​​that the bottom surface of the plate (14) is higher than the top surface of the stop (16).

2. The mill feeding device according to claim 1, characterized in that, The conveying assembly includes multiple drive shafts (27), which are rotatably mounted inside the frame (18). Each drive shaft (27) is fixed with two drive rollers (25). All drive rollers (25) are flush and their height matches that of the working rollers of the rolling mill (2).

3. The mill feeding device according to claim 1, characterized in that, The lifting drive assembly includes a pair of threaded rods (12) and two pairs of lifting blocks (11). The pair of threaded rods (12) are rotatably disposed between the crossbeam (8) and the base (1). The two pairs of lifting blocks (11) are fixedly disposed on both sides of the lifting frame (10) and threadedly connected to the pair of threaded rods (12).

4. A rolling mill feeding device according to claim 3, characterized in that, A top shaft (7) is rotatably provided between a pair of side columns (5). The top shaft (7) is connected to the two threaded rods (12) via a bevel gear. A first servo motor (6) that drives the top shaft (7) to rotate is fixed on one of the side columns (5).

5. A rolling mill feeding device according to claim 1, characterized in that, The lifting frame (10) is equipped with a pair of first pull rods (26) that rotate up and down inside, and both limiting plates (13) are threadedly connected to the pair of first pull rods (26).

6. A rolling mill feeding device according to claim 5, characterized in that, One of the pairs of lifting blocks (11) on one side is equipped with a bushing (30) that rotates. A guide shaft (29) is slidably connected in the two bushings (30). The guide shaft (29) is rotatably disposed between the crossbeam (8) and the base (1). The bushing (30) is connected to the first pair of pull rods (26) through a bevel gear. A second servo motor (9) that drives the guide shaft (29) to rotate is fixed on the crossbeam (8).

7. A rolling mill feeding device according to claim 6, characterized in that, A second support plate (28) is fixedly provided on one of the side columns (5), and a first support plate (3) is fixedly provided on the frame (18). A side shaft (4) is rotatably provided in the first support plate (3) and the second support plate (28). One end of the side shaft (4) is connected to the guide shaft (29) through a bevel gear. A second pair of pull rods (19) is rotatably provided in the frame (18). A slide rod (21) is fixedly provided in the frame (18). A pair of guide plates (20) are slidably provided on the slide rod (21). The second pair of pull rods (19) is threadedly connected to the pair of guide plates (20). The other end of the side shaft (4) is connected to the second pair of pull rods (19) through a bevel gear. The inner surface of the guide plate (20) is flush with the inner surface of the limiting plate (13).

8. A rolling mill feeding device according to claim 1, characterized in that, Each layer of the support wheel (15) is inclined, and each layer of the stop block (16) includes two stops (16), which can block and limit the corresponding layer of the plate (14).

9. A rolling mill feeding device according to claim 2, characterized in that, The frame (18) is provided with a central shaft (24) for rotation. Each drive shaft (27) is provided with a worm gear (22) in the middle. Multiple worms (23) are provided on the central shaft (24). The worm gear (22) meshes with the worm (23) at the corresponding position. A third servo motor (17) for driving the central shaft (24) to rotate is provided on the frame (18).

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