Safety rolling mill with protection mechanism
By installing an adjustable spacing and adaptive mechanism on the rolling mill, and using a motor drive and spring to adjust the spacing between the upper and lower rolls, the problem of the rolling mill's inability to be precisely adjusted was solved, thereby improving the uniformity of product thickness and surface quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-10
AI Technical Summary
Existing rolling mills cannot precisely adjust the gap between the upper and lower rolls, resulting in uneven thickness of rolled products, which affects quality and performance.
The system employs an adjustable spacing mechanism and an adaptive mechanism. The distance between the upper and lower rollers is adjusted by a motor drive, and springs and cooling plates are used to adapt to different steel plate sizes, achieving precise control and uniform force distribution.
It achieves uniform thickness of rolled products, meets high-precision quality standards, avoids surface defects, and improves the surface quality and smoothness of steel plates.
Smart Images
Figure CN223980975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill technology, and in particular to a safety rolling mill with a protective mechanism. Background Technology
[0002] Safety-type rolling mills can be used for both roughing and finishing rolling processes when producing steel plates of various thicknesses. During roughing, steel billets can be initially rolled into thicker slabs, and the protective mechanism can prevent dangers such as billet splashing that may occur during high-pressure rolling. During finishing, the slabs can be further rolled into thinner steel plates that meet the precision requirements, and the protective mechanism can effectively ensure the safety of operators during high-precision operations.
[0003] In existing technology, some rolling mills have a screw and nut assembly installed on the stand, with the bearing housing of the upper roll connected to the nut. The screw is rotated by a motor or manually, causing the nut to move up and down along the screw, thus raising or lowering the upper roll and adjusting the roll gap. This method is simple in structure, low in cost, and the adjustment accuracy generally meets the needs of conventional rolling. It is commonly used in some small rolling mills or those where extremely high precision is not required.
[0004] However, in practical applications, different rolled products have strict requirements for thickness, and without adjusting the roll spacing, it is difficult to ensure the uniformity of product thickness. For example, when producing steel plates, some areas may be too thick and some areas too thin, resulting in products that do not meet quality standards and affecting their performance in subsequent processing and use. To address the above issues, a safety rolling mill with a protective mechanism is proposed. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a safety rolling mill with a protective mechanism, aiming to improve the problem that some devices in the prior art cannot adjust the distance between the upper and lower rolls.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A safety rolling mill with a protective mechanism includes two mounting frames, with connecting rods fixedly connected to adjacent sides of the two mounting frames, a connecting frame fixedly connected to the outer left side of the mounting frame, an adjusting spacing mechanism fixedly connected inside the connecting frame, and adaptive mechanisms fixedly connected to both the outer left and right sides of the mounting frame.
[0008] The adjustable spacing mechanism includes a motor, a drive plate is fixedly connected to the drive end of the motor, connecting shafts are fixedly connected to both the left and right ends of the drive plate, a connecting plate is rotatably connected to the outside of the connecting shaft, a fixed shaft is fixedly connected to the other end of the connecting plate, a fixed roller is fixedly connected to the outside of the fixed shaft, an upper roller is rotatably connected to the outside of the fixed roller, a protective component is fixedly connected to the outside of the mounting frame, and the motor is fixedly connected to the inside of the connecting frame.
[0009] As a further description of the above technical solution:
[0010] The protective component includes a ring, a connecting rod slidably connected inside the ring, a spring sleeved on the outside of the connecting rod, a baffle fixedly connected to the bottom of the connecting rod, and the outside of the ring fixedly connected inside the mounting bracket.
[0011] As a further description of the above technical solution:
[0012] The adaptive mechanism includes an extension fixing plate, a fixing rod is fixedly connected to one of the two extension fixing plates on their adjacent sides, a spring is sleeved on the outside of the fixing rod, a connecting plate is fixedly connected to the outside of the fixing rod, a cooling plate is fixedly connected to the outside of the connecting plate, and the extension fixing plates are fixedly connected to the front and rear sides of the outside of the mounting frame.
[0013] As a further description of the above technical solution:
[0014] The mounting bracket has a fixed plate that is slidably connected inside, and a slider is fixedly connected to the outside of the fixed plate.
[0015] As a further description of the above technical solution:
[0016] The slider is rotatably connected to a lower roller, and the lower roller is fixedly connected to the outside of the fixed roller.
[0017] As a further description of the above technical solution:
[0018] The outer side of the fixing plate is in contact with the outer side of the baffle, and the outer side of the baffle is in contact with the inner side of the mounting bracket;
[0019] As a further description of the above technical solution:
[0020] The connecting plate is rotatably connected to the outside of the mounting frame, and the drive plate is rotatably connected to the inside of the mounting frame.
[0021] As a further description of the above technical solution:
[0022] One end of the spring is fixedly connected to the outside of the connecting plate, and the other end of the spring is fixedly connected to the outside of the extension fixing plate.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, by starting the motor, the motor can drive the drive plate to rotate, and the drive plate can drive the connecting plate to rotate through the connecting shaft. The connecting plate can drive the upper and lower rollers to move through the fixed roller, thereby realizing the adjustment of the gap between the upper and lower rollers. By adjusting the roller gap, the thickness of the rolled product can be precisely controlled to ensure that the product thickness is uniform and consistent, meets high-precision quality standards, and satisfies the strict requirements of different industries for product thickness.
[0025] 2. In this utility model, when the steel plate is placed outside the cooling plate, the size of the steel plate allows the cooling plate to compress the spring through the connecting plate, causing the spring to deform. This allows it to adapt to steel plates of different sizes. Through adaptive adjustment, the rolling mill can automatically adjust the roll pressure and spacing according to the unevenness of the steel plate surface or the stress changes during the rolling process, making the steel plate surface more uniformly stressed, effectively avoiding surface defects such as scratches, pits, and waves, and improving the surface quality and smoothness of the steel plate. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a safety rolling mill with a protective mechanism proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the upper roll of a safety rolling mill with a protective mechanism proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of a safety-type rolling mill baffle with a protective mechanism proposed in this utility model;
[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0030] Legend:
[0031] 1. Mounting bracket; 2. Connecting rod; 3. Connecting frame; 4. Motor; 5. Drive plate; 6. Connecting shaft; 7. Connecting plate; 8. Fixed shaft; 9. Fixed roller; 10. Upper roller; 11. Lower roller; 12. Slider; 13. Fixed plate one; 14. Extension fixed plate; 15. Fixed rod; 16. Spring one; 17. Connecting plate; 18. Placement cooling plate; 19. Connecting rod; 20. Spring two; 21. Baffle; 22. Ring. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a safety rolling mill with a protective mechanism, comprising two mounting frames 1. The mounting frames 1 are made of high-strength cast steel and undergo precision casting and machining processes, possessing good stability and load-bearing capacity, capable of withstanding the enormous pressure and vibration generated during the rolling mill's operation. Connecting rods 2 are fixedly connected to adjacent sides of the two mounting frames 1. The length of the connecting rods 2 is precisely designed according to the distance between the two mounting frames 1, and both ends are tightly connected to the mounting frames 1. The connection method can be welding, forming a robust whole. A connecting frame 3 is fixedly connected to the outer left side of the mounting frames 1. The shape and size of the connecting frame 3 are designed according to the size and layout of the adjusting distance mechanism, ensuring a tight fit between the two, enabling the adjusting distance mechanism to operate stably. An adjusting distance mechanism is fixedly connected inside the connecting frame 3. Adaptive mechanisms are fixedly connected to the outer left and right sides of the mounting frames 1. The adaptive mechanisms include extension fixing plates 14, which serve as the mounting base for the adaptive mechanisms.
[0034] The extension fixing plates 14 are made of cast steel that matches the mounting frame 1. They are fixed to the front and rear sides of the mounting frame 1 by welding or bolting to ensure a firm connection. Fixing rods 15 are fixedly connected to adjacent sides of the two extension fixing plates 14. The fixing rods 15 have good strength and toughness. Their diameter and length are designed according to the working requirements of the adaptive mechanism. A spring 16 is sleeved on the outside of the fixing rod 15. One end of the spring 16 is connected to the connecting seat of the extension fixing plate 14 by a high-strength bolt, and the other end is connected to the corresponding connecting seat of the connecting plate 17 in the same way. Under normal working conditions, the spring 16 is in a certain compressed state, providing a pre-tightening force for the placement of the cooling plate 18, allowing it to fit tightly against the vicinity of the working parts of the rolling mill. The connecting plate 17 is fixedly connected to the outside of the fixing rod 15. The connecting plate 17 serves to connect and transmit force, transferring the force of the spring 16 to the placement of the cooling plate 18, while ensuring the stability of the movement of the placement of the cooling plate 18 on the fixing rod 15. On the connecting plate 17, there is also a connecting seat that matches the extension fixing plate 14 for connecting the spring 16. The external of the connecting plate 17 is fixedly connected to a cooling plate 18. The function of the cooling plate 18 is to cool the working parts of the rolling mill. By contacting the surface of the working parts, the heat generated during the working process is conducted away, and then the heat is dissipated through air convection or other cooling methods. The external of the extension fixing plate 14 is fixedly connected to the front and rear sides of the mounting frame 1.
[0035] The spacing adjustment mechanism includes a motor 4, which is a DC servo motor with high-precision speed control and high torque output capability, capable of precisely controlling the movement of the drive plate 5. The drive plate 5 is fixedly connected to the drive end of the motor 4. The drive plate 5 is formed by stamping, bending, and welding processes. Both its outer left and right ends are fixedly connected to the connecting shaft 6 by welding or high-strength bolts. The diameter and length of the connecting shaft 6 are precisely designed according to the connection requirements of the drive plate 5 and the connecting plate 7. The connecting plate 7 is rotatably connected to the connecting shaft 6 by high-precision bearings. One end of the connecting plate 7 is rotatably connected to the drive plate 5 by the connecting shaft 6, and the other end is fixedly connected to the fixed shaft 8 by welding or high-strength bolts. Driven by the connecting shaft 6, the connecting plate 7 converts the linear motion of the drive plate 5 into the rotation of the fixed shaft 8, thereby realizing the adjustment of the position of the upper roller 10.
[0036] A fixed shaft 8 is fixedly connected to the other end of the connecting plate 7. A fixed roller 9 is fixedly connected to the outside of the fixed shaft 8. The fixed roller 9 is made of high-strength alloy cast iron and has undergone multiple processes such as casting, machining, and heat treatment, giving it good wear resistance and rigidity. An upper roller 10 is rotatably connected to the outside of the fixed roller 9. The upper roller 10 is a key component that directly rolls the material. It is made of high-quality alloy tool steel and has undergone multiple processes such as forging, machining, and heat treatment, giving it extremely high hardness and wear resistance. A protective component is fixedly connected to the outside of the mounting frame 1. The protective component includes a ring 22, which is made of high-strength stainless steel. Through precision forging and machining processes, it possesses good strength and corrosion resistance. The inner side of the ring 22 is slidably connected to the connecting rod 19, and the outer side of the connecting rod 19 is fitted with a spring 20. One end of the spring 20 is tightly connected to the top of the ring 22, and the other end abuts against a specific position on the connecting rod 19. The bottom of the connecting rod 19 is fixedly connected to the baffle 21. Under the action of the spring 20, the baffle 21 can effectively shield the dangerous area during the operation of the rolling mill, preventing operators or other objects from accidentally approaching. The outer side of the ring 22 is fixedly connected to the inside of the mounting frame 1, and the outer side of the motor 4 is fixedly connected to the inside of the connecting frame 3.
[0037] Reference Figures 2 to 4 The mounting frame 1 has a fixed plate 13 that is slidably connected inside. The surface of the fixed plate 13 is polished to ensure flatness and reduce friction with the slide rail inside the mounting frame 1. The fixed plate 13 is fixedly connected to a slider 12. The slider 12 is made of wear-resistant copper alloy and has balls installed inside. It cooperates with the slide rail inside the mounting frame 1 to realize the smooth sliding of the fixed plate 13 inside the mounting frame 1. The slider 12 is rotatably connected to a lower roller 11. The lower roller 11 is an important component that cooperates with the upper roller 10 to perform rolling work.
[0038] The lower roll 11 is made of high-quality alloy tool steel similar to the upper roll 10. After multiple processes such as forging, machining and heat treatment, it has good hardness and wear resistance. The lower roll 11 is fixedly connected to the outside of the fixed roll 9. The outside of the fixed plate 13 is in contact with the outside of the baffle 21. The outside of the baffle 21 is in contact with the inside of the mounting frame 1. The outside of the connecting plate 7 is rotatably connected to the outside of the mounting frame 1. The outside of the drive plate 5 is rotatably connected to the inside of the mounting frame 1. One end of the spring 16 is fixedly connected to the outside of the connecting plate 17. The other end of the spring 16 is fixedly connected to the outside of the extension fixed plate 14.
[0039] Working principle: When adjusting the gap between the upper roll 10 and the lower roll 11, the motor 4 is started. Under the action of the motor 4, the motor 4 can drive the drive plate 5 to rotate. Under the rotation of the drive plate 5, the drive plate 5 can drive the connecting plate 7 to rotate through the connecting shaft 6. Under the action of the connecting plate 7, the connecting plate 7 can drive the upper roll 10 and the lower roll 11 to move through the fixed roller 9, thereby realizing the adjustment of the gap between the upper roll 10 and the lower roll 11.
[0040] When the steel plate is placed outside the cooling plate 18, the size of the steel plate allows the cooling plate 18 to compress the spring 16 through the connecting plate 17, causing the spring 16 to deform and thus adapt to steel plates of different sizes. After processing, the cooling plate 18 can cool the steel plate, making it convenient for workers to handle.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 safety mill with a safeguarding mechanism, comprising two mounting frames (1), characterized in that: Two proximal sides of the mounting frame (1) are fixedly connected with a connecting rod (2), the outer left side of the mounting frame (1) is fixedly connected with a connecting frame (3), the inner side of the connecting frame (3) is fixedly connected with an adjusting spacing mechanism, and the outer left and right sides of the mounting frame (1) are fixedly connected with self-adapting mechanisms. The adjusting spacing mechanism comprises a motor (4), the driving end of the motor (4) is fixedly connected with a driving plate (5), the outer left and right ends of the driving plate (5) are fixedly connected with connecting shafts (6), the outer sides of the connecting shafts (6) are rotatably connected with link plates (7), the other ends of the link plates (7) are fixedly connected with fixed shafts (8), the outer sides of the fixed shafts (8) are fixedly connected with fixed rollers (9), the outer sides of the fixed rollers (9) are rotatably connected with upper rollers (10), the outer side of the mounting frame (1) is fixedly connected with a protection assembly, and the outer side of the motor (4) is fixedly connected to the inner side of the connecting frame (3).
2. A safety mill with a protection mechanism according to claim 1, characterized in that: The protection assembly comprises a circular ring (22), the inner side of the circular ring (22) is slidably connected with a link rod (19), the outer side of the link rod (19) is sleeved with a spring (20), the bottom of the link rod (19) is fixedly connected with a baffle (21), and the outer side of the circular ring (22) is fixedly connected to the inner side of the mounting frame (1).
3. A safety mill with a protection mechanism according to claim 1, characterized in that: The self-adapting mechanism comprises extension fixed plates (14), the proximal sides of the two extension fixed plates (14) are fixedly connected with fixed rods (15), the outer sides of the fixed rods (15) are sleeved with springs (16), the outer sides of the fixed rods (15) are fixedly connected with connecting plates (17), the outer sides of the connecting plates (17) are fixedly connected with placing cooling plates (18), and the outer sides of the extension fixed plates (14) are fixedly connected to the outer front and back sides of the mounting frame (1).
4. A safety mill having a safeguarding mechanism as claimed in claim 2, wherein: The inner side of the mounting frame (1) is slidably connected with a fixed plate (13), and the outer side of the fixed plate (13) is fixedly connected with a sliding block (12).
5. A safety mill with a safeguarding mechanism according to claim 4, characterized in that: The outer side of the sliding block (12) is rotatably connected with a lower roller (11), and the outer side of the lower roller (11) is fixedly connected to the outer side of the fixed roller (9).
6. A safety mill having a safeguarding mechanism as claimed in claim 4, wherein: The outer side of the fixed plate (13) is in contact with the outer side of the baffle (21), and the outer side of the baffle (21) is in contact with the inner side of the mounting frame (1).
7. A safety mill having a safeguarding mechanism as claimed in claim 1, wherein: The outer side of the link plate (7) is rotatably connected to the outer side of the mounting frame (1), and the outer side of the driving plate (5) is rotatably connected to the inner side of the mounting frame (1).
8. A safety mill having a safeguarding mechanism as claimed in claim 3, wherein: One end of the spring (16) is fixedly connected to the outer side of the connecting plate (17), and the other end of the spring (16) is fixedly connected to the outer side of the extension fixed plate (14).