T-shaped auxiliary device

By designing a T-shaped auxiliary device and using a hydraulic cylinder to drive the platform to achieve flexible extension and retraction, the problem of product surface quality inspection and cleaning maintenance in the overhead cold rolling mill was solved, improving production efficiency and safety.

CN116475240BActive Publication Date: 2026-04-28ZHEJIANG YONGJIE ALUMINUM CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG YONGJIE ALUMINUM CO LTD
Filing Date
2023-03-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing cold rolling mills have difficulties in inspecting the surface quality of products during production, poor cleaning and maintenance effects, low production efficiency, and poor safety. In particular, the maintenance and inspection of the coils and flattening rolls of high-rise cold rolling mills are difficult, and surface defects cannot be detected in a timely manner.

Method used

Design a T-shaped auxiliary device, including first and second telescopic devices, which drive the platform and sliding components through a hydraulic cylinder to form a T-shaped structure, enabling flexible extension and retraction of the platform, facilitating surface quality inspection and cleaning maintenance by operators near the overhead cold rolling mill.

Benefits of technology

It improves production efficiency and safety, simplifies operation, enables convenient support of the overhead cold rolling mill rolls and timely inspection of the surface quality of rolled products, and reduces safety hazards.

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Abstract

The application provides a T-shaped auxiliary device, which comprises a first telescopic device and a second telescopic device arranged at one end of the first telescopic device, and the first telescopic device and the second telescopic device are arranged in a T-shaped structure; the first telescopic device comprises a first base, a first driving unit, a first sliding assembly and a first platform; the output end of the first driving unit is fixedly connected with the first platform, and the two opposite sides of the first platform are fixedly provided with first guardrails; the second telescopic device comprises a second driving unit, a second base, a second sliding assembly, a second platform and a controller; the two opposite sides of the second platform are fixedly provided with second guardrails, the controller is fixed to the second guardrails, and the controller is electrically connected with the first driving unit and the second driving unit respectively. The T-shaped auxiliary device is convenient to operate, is convenient for cleaning a rolling mill, maintaining the rolling mill and checking the surface quality of a rolling piece, has high production efficiency and good safety.
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Description

Technical Field

[0001] This invention relates to the field of cold rolling mill technology, and in particular to a T-shaped auxiliary device used in aluminum sheet, strip and foil cold rolling mills. Background Technology

[0002] The cold rolling mill is a crucial piece of equipment in the production of aluminum sheet, strip, and foil. It consists of a frame, rolls, roll bearings, roll adjustment mechanism, guide device, rolling stand, coiling and uncoiling device, and other components. The cold rolling mill uses its rolls to roll metal sheets. During production, a feeding platform and a discharging platform are typically located at both ends of the cold rolling mill. These platforms are long, narrow worktables, and semi-braking feeding and discharging are employed.

[0003] Currently, large-scale cold rolling mills utilize elevated rolling mills, characterized by their uncoiling and coil positions being 1-2 meters above the ground. Due to the operation of the material handling trolley, a trench is installed below the uncoiling and coiling sections, with the trench being -2 to -3 meters above the ground. The advantages include saving floor space, maximizing space utilization, achieving fully automated and rapid coil changing, and enabling multi-coil cyclic rolling. However, certain drawbacks also exist. For example, due to the height, maintenance and cleaning of the coils and flattening rolls in elevated cold rolling mills are very difficult. Either hoisting equipment is needed to transport maintenance personnel to the designated location, or a ladder must be built from below the trench to transport personnel, resulting in low efficiency and safety hazards.

[0004] Furthermore, it is difficult to accurately and promptly inspect the surface quality of exported rolled products. Surface quality inspection requires uncoiling the coils offline, and for thicker materials, uncoiling is not possible, necessitating inspection at the next processing stage. The drawbacks are the inability to detect abnormalities promptly, long inspection cycles, and reduced production efficiency. While surface defect inspection instruments are available, they are costly and limited by interference from oil on the rolled products, failing to detect some defects in practice. Another method involves pausing rolling at the initial stage, with inspectors standing at the exit position to check the surface. However, this method suffers from long inspection distances, incomplete detection, and safety hazards. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention proposes a T-shaped auxiliary device to solve the problems of cumbersome product surface quality inspection, poor cleaning and maintenance, low production efficiency, and poor safety in the production process of existing cold rolling mills.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This invention provides a T-shaped auxiliary device for use in a high-rise cold rolling mill for aluminum sheet, strip and foil production. The T-shaped auxiliary device includes a first telescopic device and a second telescopic device disposed at one end of the first telescopic device. The first telescopic device and the second telescopic device are arranged in a T-shape.

[0008] The first telescopic device includes a first base, a first drive unit fixed on the first base, a first sliding component slidably disposed on the first base, and a first platform fixed on the first sliding component; the output end of the first drive unit is fixedly connected to the first platform, and the first platform is fixed with first guardrails on opposite sides along its sliding direction.

[0009] The second telescopic device includes a second drive unit fixed below the first base and away from the first drive unit, a second base fixed to the end of the first sliding component and along a sliding direction perpendicular to the first sliding component, a second sliding component slidably disposed on the second base, a second platform fixed on the second sliding component, and a controller; the second sliding component is perpendicular to the first sliding component; second guardrails are fixed on opposite sides of the second platform along its sliding direction, the controller is fixed to the second guardrails, and the controller is electrically connected to the first drive unit and the second drive unit respectively, for controlling the first drive unit to drive the first platform to move the first sliding component to slide on the first base to achieve telescopic movement, and controlling the second drive unit to drive the second platform to move the second sliding component to slide on the second base to achieve telescopic movement.

[0010] Preferably, the first sliding component includes a first slide rail fixed to the first base and a plurality of first rollers slidably disposed on the first slide rail, the first platform is supported on the plurality of first rollers and forms a slidable connection with the first slide rail, and the second base is fixed to the first slide rail.

[0011] Preferably, the first telescopic device further includes a first limiting part and a second limiting part fixed to the first slide rail. The first limiting part is located at the end point where the first platform retracts when it moves along the first slide rail, and the second limiting part is located at the end point where the first platform advances when it moves along the first slide rail.

[0012] Preferably, the first telescopic device further includes a third guardrail fixed to the periphery of the first slide rail along its length, the third guardrail being spaced apart from the first guardrail.

[0013] Preferably, the first slide rail and the first base are fixedly connected by bolts.

[0014] Preferably, the first slide rail is an H-shaped channel steel.

[0015] Preferably, the second sliding component includes a second slide rail fixed to the second base and a plurality of second rollers slidably disposed on the second slide rail, and the second platform is supported on the plurality of second rollers and forms a sliding connection with the second slide rail.

[0016] Preferably, the second telescopic device further includes a fourth guardrail fixed to the periphery of the second slide rail along its length direction, the fourth guardrail being spaced apart from the second guardrail and together forming a protected area.

[0017] Preferably, the second slide rail is an H-shaped channel steel.

[0018] Preferably, both the first drive unit and the second drive unit are hydraulic cylinders.

[0019] Compared with related technologies, in the embodiments of the present invention, the first driving unit and the second driving unit are controlled by a controller respectively. The first driving unit drives the first platform to move the first sliding component on the first base, and the second driving unit drives the second platform to move the second sliding component on the second base. This achieves T-shaped mutual movement between the first and second platforms. The T-shaped structure utilizes the principle of mechanical support, saving on device operating time, providing a large load capacity, and high stability. By using ordinary metal materials and assembling through intelligent logic, semi-automatic operation is achieved. The movement directions of the first and second telescopic devices are set in a T-shape; the overall shape is T-shaped and it can achieve telescopic functionality. This allows the device to be flexibly installed near the coil on the rolling mill, depending on the size of the overhead rolling mill and the actual conditions of the production site. This facilitates the movable support of the cold rolling mill coil, the easy entry and exit of the rolled product trolley, the normal operation of the cold rolling mill coil assist, and the pressing and lifting of the flattening rollers. The operation is simple, the production efficiency is high, the effect is good, and the safety is high. Attached Figure Description

[0020] The present invention will now be described in detail with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and more readily understood through the detailed description following the accompanying drawings. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the T-shaped auxiliary device in an embodiment of the present invention;

[0022] Figure 2 This is a left view of the T-shaped auxiliary device in an embodiment of the present invention;

[0023] Figure 3 This is a top view of the T-shaped auxiliary device in an embodiment of the present invention.

[0024] Among them, 100, T-shaped auxiliary device; 1, first telescopic device; 11, first base; 12, first drive unit; 13, first sliding assembly; 131, first slide rail; 132, first roller; 14, first platform; 2, second telescopic device; 21, second base; 22, second drive unit; 23, second sliding assembly; 231, second slide rail; 232, second roller; 24, second platform; 25, controller; 3, first guardrail; 4, second guardrail; 5, third guardrail; 6, fourth guardrail; 7, first limiting part; 8, second limiting part; 9, nut. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-3 As shown, this embodiment of the invention provides a T-shaped auxiliary device 100, applied to a high-rise cold rolling mill for aluminum sheet, strip, and foil production. The T-shaped auxiliary device 100 includes a first telescopic device 1 and a second telescopic device 2 disposed at one end of the first telescopic device 1. The first telescopic device 1 and the second telescopic device 2 are arranged in a T-shape. The first telescopic device 1 and the second telescopic device 2 are used to assist in the cleaning, maintenance, and inspection of the surface quality of the rolled pieces on the high-rise cold rolling mill.

[0029] The first telescopic device 1 includes a first base 11, a first drive unit 12 fixed to the first base 11, a first sliding assembly 13 slidably disposed on the first base 11, and a first platform 14 fixed to the first sliding assembly 13. The output end of the first drive unit 12 is fixedly connected to the first platform 14, and first guardrails 3 are fixed on opposite sides of the first platform 14 along the sliding direction. The first drive unit 12 drives the first platform 14 to slide the first sliding assembly 13 on the first base 11, thereby realizing the movement of the first platform 14 along the direction of the second telescopic device 2. The first guardrails 3 provide protection and facilitate the operator's movement on the first platform 14 for inspecting the surface quality of the rolled products produced by the overhead cold rolling mill, cleaning and maintaining the cold rolling mill, etc.

[0030] Optionally, the first base 11 is fixed in parallel to the horizontal ground by two sets of H-shaped ultra-thick channel steels, serving as the foundation of the T-shaped auxiliary device 100 and playing the role of supporting the overall device.

[0031] The second telescopic device 2 includes a second drive unit 22 fixed below the first base 11 and away from the first drive unit 12, a second base 21 fixed to the end of the first sliding component 13 and along a sliding direction perpendicular to the first sliding component 13, a second sliding component 23 slidably disposed on the second base 21, a second platform 24 fixed on the second sliding component 23, and a controller 25; the second sliding component 23 is perpendicular to the first sliding component 13; second guardrails 4 are fixed on opposite sides of the second platform 24 along its sliding direction, and the controller 25 is fixed to the second guardrails 4. The controller 25 is electrically connected to the first drive unit 12 and the second drive unit 22 respectively. It is used to control the first drive unit 12 to drive the first platform 14 to move the first sliding component 13 on the first base 11 to achieve telescopic movement, and to control the second drive unit 22 to drive the second platform 24 to move the second sliding component 23 on the second base 21 to achieve telescopic movement.

[0032] Optionally, the first telescopic device 1 moves forward and backward, while the second telescopic device 2 moves left and right. The second telescopic device 2 is located at the end of the first telescopic device 1, forming a T-shaped structure between the first telescopic device 1 and the second telescopic device 2, which can save space.

[0033] The first platform 14 and the first guardrail 3 are combined to form a first-level telescopic platform safety passage, and the second platform 24 and the second guardrail 4 are combined to form a second-level telescopic platform safety passage, which makes it convenient for operators to stand on the first platform 14 or the second platform 24, and ensures high safety.

[0034] Optionally, the first platform 14 is composed of a single steel plate for the operator to walk on. The second base 21 is composed of a single thick steel plate, which is integral with the first platform 14, forming a T-shaped structure.

[0035] Specifically, the controller 25 controls the first drive unit 12 and the second drive unit 22 respectively. The first drive unit 12 drives the first platform 14, which in turn drives the first sliding component 13 to extend and retract on the first base 11. The second drive unit 22 drives the second platform 24, which in turn drives the second sliding component 23 to extend and retract on the second base 21. This achieves a T-shaped mutual movement between the first platform 14 and the second platform 24. The T-shaped structure utilizes the principle of mechanical support, saving on equipment operating time, providing a large load capacity, and high stability. By using ordinary metal materials and assembling through intelligent logic, semi-automatic operation is achieved. The movement direction of the first telescopic device 1 and the second telescopic device 2 are set in a T-shape; its overall shape is T-shaped and it can achieve telescopic functionality. This allows the device to be flexibly installed near the roll bar of the rolling mill, depending on the size of the overhead rolling mill and the actual conditions of the production site. This ensures the movable support of the cold rolling mill roll bar, convenient entry and exit of the rolled material trolley, normal operation of the cold rolling mill coiler, and smooth pressing and lifting of the flattening rollers. The operation is simple, with high production efficiency, good results, and high safety.

[0036] In this embodiment, the first sliding assembly 13 includes a first slide rail 131 relatively fixed to the first base 11 and a plurality of first rollers 132 slidably disposed on the first slide rail 131. The first platform 14 is supported by the plurality of first rollers 132 and forms a slidable connection with the first slide rail 131. The second base 21 is supported on the first slide rail 131. The first driving unit 12 drives the first platform 14 to extend and retract, so that the first rollers 132 slide back and forth on the first slide rail 131, thereby realizing the extension and retraction of the first platform 14, which facilitates the operator to check the quality of the products rolled by the cold rolling mill on the first platform 14.

[0037] The first roller 132 is fixedly connected to the opposite sides of the first platform 14, and the rollers are distributed on the corresponding sides of the first platform 14 and embedded in the first slide rail 131, so that the first roller 132 moves to move the first platform 14 back and forth.

[0038] In this embodiment, the first telescopic device 1 further includes a first limiting part 7 and a second limiting part 8 fixed to the first slide rail 131. The first limiting part 7 is located at the end point where the first platform 14 retracts when moving along the first slide rail 131, and the second limiting part 8 is located at the end point where the first platform 14 advances when moving along the first slide rail 131. This prevents the first platform 14 from detaching from the first slide rail 131 or colliding with the second telescopic device 2 during its forward and backward movement, ensuring high safety.

[0039] In this embodiment, the first telescopic device 1 further includes a third guardrail 5 fixed to the periphery of the first slide rail 131 along its length direction, the third guardrail 5 being spaced apart from the first guardrail 3. This increases the protective space and safety of the first platform 14.

[0040] In this embodiment, the first slide rail 131 and the first base 11 are fixedly connected by bolts.

[0041] In this embodiment, the first slide rail 131 is an H-shaped channel steel. The first slide rail 131 is composed of two types of H-shaped channel steel, which coincide with the channel steel plane of the first base 11, and is locked and fixed by bolts passing through nuts.

[0042] In this embodiment, the second sliding component 23 includes a second slide rail 231 relatively fixed to the second base 21 and a plurality of second rollers 232 slidably disposed on the second slide rail 231. The second platform 24 is supported by the plurality of second rollers 232 and forms a slidable connection with the second slide rail 231. The second driving unit 22 drives the second platform 24 to extend and retract, so that the second rollers 232 slide back and forth on the second slide rail 231, realizing the left and right extension and retraction of the second platform 24, which facilitates the operator to check the quality of the products rolled by the cold rolling mill on the second platform 24.

[0043] The second roller 232 is fixedly connected to the opposite sides of the second platform 24, and the rollers are distributed on the corresponding sides of the second platform 24 and embedded in the second slide rail 231, so that the second roller 232 moves to move the second platform 24 back and forth.

[0044] In this embodiment, the second telescopic device 2 further includes a fourth guardrail 6 fixed to the periphery of the second slide rail 231 along its length direction. The fourth guardrail 6 is spaced apart from the second guardrail 4 and together form a protective area.

[0045] In this embodiment, the second slide rail 231 is an H-shaped channel steel. The second slide rail 231 is composed of two types of H-shaped channel steel, installed on both sides of the second base 21, and fixed by locking with nuts 9.

[0046] In this embodiment, both the first drive unit 12 and the second drive unit 22 are hydraulic cylinders. The hydraulic cylinders provide power to the first platform 14 and the second platform 24 respectively, facilitating the first platform 14 to drive the first pulley to move back and forth on the first slide rail 131; and the second platform 24 to drive the second pulley to slide left and right on the second slide rail 231; resulting in good driving effect.

[0047] In this embodiment, the second telescopic device 2 is perpendicular to the first telescopic device 1 and installed at the top of one end of the first telescopic device 1. Considering the principle of levers, the first telescopic device 1 and the second telescopic device 2 extend and retract in different directions. This serves two purposes: firstly, the rear slide rail of the first platform 14 provides force support after it extends, allowing the extended end of the second platform 24 to bear more weight. Secondly, this method also allows the second platform 24 to move left and right, increasing the overall functionality of the device and enabling better maintenance. Simultaneously, this T-shaped auxiliary device 100 allows for multi-person operation during maintenance and quality inspection of the overhead cold rolling mill, which is not only more efficient but also more reliable compared to single-person operation using a transmission system. Therefore, this invention effectively overcomes the shortcomings of inconvenient maintenance, low efficiency, low safety, and inability to accurately inspect the surface of rolled products on the coiling side. It is simple to operate, flexible in use, and comprehensive in function, making it of great significance for the maintenance of coiling components and the inspection of the surface quality of rolled products in overhead cold rolling mills.

[0048] It should be noted that the various embodiments described above with reference to the accompanying drawings are merely illustrative of the present invention and not intended to limit its scope. Those skilled in the art should understand that any modifications or equivalent substitutions made to the present invention without departing from its spirit and scope should be included within the scope of the present invention. Furthermore, unless the context otherwise requires, words appearing in the singular include those in the plural, and vice versa. Additionally, unless specifically stated otherwise, all or part of any embodiment may be used in conjunction with all or part of any other embodiment.

Claims

1. A T-shaped auxiliary device used in a high-rise cold rolling mill for aluminum sheet, strip, and foil production, characterized in that, The T-shaped auxiliary device includes a first telescopic device and a second telescopic device disposed at one end of the first telescopic device, wherein the first telescopic device and the second telescopic device are arranged in a T-shaped structure. The first telescopic device includes a first base, a first drive unit fixed on the first base, a first sliding component slidably disposed on the first base, and a first platform fixed on the first sliding component; the output end of the first drive unit is fixedly connected to the first platform, and the first platform is fixed with first guardrails on opposite sides along its sliding direction. The second telescopic device includes a second drive unit fixed below the first base and away from the first drive unit, a second base fixed to the end of the first sliding component and along a sliding direction perpendicular to the first sliding component, a second sliding component slidably disposed on the second base, a second platform fixed on the second sliding component, and a controller; the second sliding component is perpendicular to the first sliding component; second guardrails are fixed on opposite sides of the second platform along its sliding direction, the controller is fixed to the second guardrails, and the controller is electrically connected to the first drive unit and the second drive unit respectively, for controlling the first drive unit to drive the first platform to move the first sliding component to slide on the first base to achieve telescopic movement, and controlling the second drive unit to drive the second platform to move the second sliding component to slide on the second base to achieve telescopic movement.

2. The T-shaped auxiliary device according to claim 1, characterized in that, The first sliding component includes a first slide rail fixed to the first base and a plurality of first rollers slidably disposed on the first slide rail. The first platform is supported on the plurality of first rollers and forms a slidable connection with the first slide rail. The second base is fixed to the first slide rail.

3. The T-shaped auxiliary device according to claim 2, characterized in that, The first telescopic device further includes a first limiting part and a second limiting part fixed to the first slide rail. The first limiting part is located at the end point where the first platform retracts when it moves along the first slide rail, and the second limiting part is located at the end point where the first platform moves forward when it moves along the first slide rail.

4. The T-shaped auxiliary device according to claim 2, characterized in that, The first telescopic device further includes a third guardrail fixed to the periphery of the first slide rail along its length, the third guardrail being spaced apart from the first guardrail.

5. The T-shaped auxiliary device according to claim 2, characterized in that, The first slide rail is fixedly connected to the first base by bolts.

6. The T-shaped auxiliary device according to claim 2, characterized in that, The first slide rail is an H-shaped channel steel.

7. The T-shaped auxiliary device according to claim 1, characterized in that, The second sliding component includes a second slide rail fixed to the second base and a plurality of second rollers slidably disposed on the second slide rail. The second platform is supported on the plurality of second rollers and forms a sliding connection with the second slide rail.

8. The T-shaped auxiliary device according to claim 7, characterized in that, The second telescopic device also includes a fourth guardrail fixed to the periphery of the second slide rail along its length direction. The fourth guardrail is spaced apart from the second guardrail and together they enclose a protected area.

9. The T-shaped auxiliary device according to claim 7, characterized in that, The second slide rail is made of H-shaped channel steel.

10. The T-shaped auxiliary device according to claim 1, characterized in that, Both the first drive unit and the second drive unit are hydraulic cylinders.

Citation Information

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