A new type of horizontal loop

Abstract

The utility model discloses a novel horizontal loop, including frame and install multilayer deflection roller group on the frame, and the strip is wound through the deflection roller group with S shape path, the deflection roller group includes at least three different diameter rollers, the inlet and the outlet of the strip are located the intermediate region of the loop in length direction, and part of roller in the deflection roller group is configured to form large wrap angle with the strip, and another part of roller is configured to form small wrap angle with the strip. Through adopting multi roller diameter combination design, intermediate inlet and outlet layout and double wrap angle anti -run -off scheme, integration spatial compactness, stress equalization and three big advantages of operation stabilization, realized in the significant reduction equipment area and height, reduce manufacturing cost, thoroughly overcome the vibration and subversion risk of traditional loop because of uneven stress, and effectively put an end to the strip run -off phenomenon, thereby greatly improved the continuity of production line, security and product yield.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal sheet and strip rolling or processing production lines, and particularly relates to a novel horizontal looper. Background Technology

[0002] In continuous production lines for strip and sheet metal (such as steel plates and aluminum strips), loopers are indispensable key equipment. Their function is to store or release a certain length of strip and sheet metal when the speeds of the upstream (such as uncoiling and cleaning) and downstream (such as rolling and shearing) stages of the production line are inconsistent, ensuring continuous and stable production. Currently, common horizontal loopers mainly use multi-layered arrangement of single-diameter guide rollers. This traditional structure, due to the use of a single roller diameter, requires a large vertical space between each layer of strip and sheet metal to ensure sufficient bending radius during turning without plastic deformation or surface damage. This results in a tall, heavy, and space-consuming machine. The strip and sheet metal inlet and outlet of traditional loopers are usually located at opposite ends of the machine. This asymmetrical feeding and discharging method causes the center of force to constantly change during strip storage and release, easily leading to torque imbalance, equipment vibration, and in severe cases, even accidents such as rollovers. Furthermore, in traditional loopers, all guide rollers have essentially the same wrap angle with the strip and sheet metal, and the single wrap angle design has limited ability to correct strip deviation. During long-term operation, the strip is prone to deviation due to factors such as tension fluctuations and roller wear. This can result in minor scratches on the strip surface or even equipment shutdown, affecting production efficiency and product quality.

[0003] Therefore, there is an urgent need for a new type of horizontal looper that is compact in structure, runs smoothly, and can effectively prevent the strip from deviating. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of the prior art and provide a new type of horizontal looper to solve the problems of large space occupation, uneven force during operation and easy vibration, and easy deviation of the plate and belt in the prior art.

[0005] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0006] In some embodiments of this application, a novel horizontal looper is provided, including a frame and a multi-layer guide roller assembly mounted on the frame. The strip is wound through the guide roller assembly in an S-shaped path. The guide roller assembly includes at least three different diameter rollers. The inlet and outlet of the strip are located in the middle region of the looper in the length direction. Some rollers in the guide roller assembly are configured to form a large wrap angle with the strip, and other rollers are configured to form a small wrap angle with the strip.

[0007] In some embodiments of this application, at least three different diameter rollers include large-diameter rollers, medium-diameter rollers, and small-diameter rollers.

[0008] In some embodiments of this application, the large-diameter roller forms a small wrap angle with the strip, and the small-diameter roller forms a large wrap angle with the strip.

[0009] In some embodiments of this application, the large wrapping roller and the small wrapping roller are arranged alternately on the running path of the strip.

[0010] In some embodiments of this application, the inlet and outlet are located at the same or similar heights in the vertical direction of the loop.

[0011] In some embodiments of this application, the angle range of the large wrap angle is 90° to 180°, and the angle range of the small wrap angle is 0° to 90°.

[0012] Compared with the prior art, the beneficial effects of this utility model are that by adopting a multi-roller diameter combination design, intermediate inlet and outlet layout and double wrap corner anti-deviation scheme, it integrates three major advantages: compact space, balanced force and stable operation. It achieves significant reduction in equipment footprint and height, and lower manufacturing costs, while completely overcoming the vibration and overturning risks caused by uneven force in traditional loopers, and effectively eliminating the phenomenon of strip deviation, thereby greatly improving the continuity, safety and product yield of the production line. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0014] Figure 1 This is a schematic diagram of the layout structure of the first horizontal looper in the prior art;

[0015] Figure 2 This is a schematic diagram of the layout structure of the second type of horizontal looper in the prior art;

[0016] Figure 3 This is a schematic diagram of the layout structure of the novel horizontal slip-on sleeve provided in an embodiment of the present utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0018] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0019] Example 1:

[0020] See Figure 3 The present invention provides a novel horizontal looper, which mainly includes a frame (not shown in the figure), a roller system composed of guide rollers of various diameters, and a strip running through it.

[0021] The frame is a rigid structure formed by welding or bolting, providing support for the entire looper.

[0022] The roller system is mounted on the frame via bearing seats, and all rollers can rotate freely under driving or driven conditions. The roller system consists of at least three different diameter rollers; in this embodiment, it specifically includes:

[0023] Large-diameter roller 3 is arranged at the inlet and outlet of the looper.

[0024] The medium-diameter roller 1 is mainly arranged in the middle storage area of ​​the looper to achieve dense storage of strips in a compact space.

[0025] Small diameter roller 2 serves as a transition roller and is distributed in the middle layer of the looper.

[0026] The horizontal looper in this embodiment is symmetrically arranged, specifically including: an inlet end, a transition end, and an outlet end. The inlet end and the outlet end are symmetrically arranged about the transition end. The inlet end includes: a first medium diameter roller 1 on one side of a first large diameter roller 3, with the centers of the first large diameter roller 3 and the first medium diameter roller 1 on the same horizontal line; a second large diameter roller 3 on the side away from the first large diameter roller 3, with a second medium diameter roller 1 between it and the first medium diameter roller 1, with the centers of the second medium diameter roller 1 and the second large diameter roller 3 on the same horizontal line, wherein the center of the second large diameter roller 3 is higher than the center of the first large diameter roller 3; a small diameter roller 2 on the other side of the first large diameter roller 3, with its center height higher than the height of the second large diameter roller 3, and its top flush with the top of the second large diameter roller 3; and a medium diameter roller 1 on one side of the small diameter roller 2, with its center at the center line of the inlet end and the outlet end.

[0027] The inlet and outlet of the strip are both located in the middle region of the looper along its length. Preferably, the inlet and outlet are at the same or similar height in the vertical direction, such as... Figure 3 As shown. This symmetrical layout concentrates the torque generated by the strip tension on the looper in the middle of the equipment, greatly improving the force balance and avoiding the torque imbalance and vibration problems caused by the traditional two-end feeding and discharging method.

[0028] To further optimize the spatial layout and prevent the strip from deviating, this utility model features a special design for the roll wrap angle:

[0029] like Figure 3As shown, when the strip passes over the small-diameter roller 2, a large wrap angle α is formed. A large wrap angle α means that the contact arc length between the strip and the roller is longer, resulting in stronger lateral constraint on the strip and a significant correction effect. The preferred angle range for the large wrap angle α is 90° to 180°.

[0030] Accordingly, when the strip passes over the large-diameter roller 3, a small wrap angle β is formed. The small wrap angle β helps to reduce running resistance and, combined with the large wrap angle α, forms an alternating corrective force. The preferred angle range of the small wrap angle β is 0° to 90°.

[0031] Work process:

[0032] like Figure 3 As shown, the strip enters the looper from the inlet, successively passing the first large-diameter roller 3 and the second medium-diameter roller 1 at the inlet end, then folds back past the first medium-diameter roller 1, passes the second large-diameter roller 3, successively passes the small-diameter roller 2, passes through the medium-diameter roller 1 at the transition end, enters the small-diameter roller 2 at the output end, then loops back past the second large-diameter roller 3 and the first medium-diameter roller 1 at the output end, folds back past the second medium-diameter roller 1, and is finally exited by the first large-diameter roller 3 at the output end. Throughout the S-shaped path, the strip undergoes alternating changes of "small wrap angle - large wrap angle - small wrap angle". This alternating wrap angle design ensures that the strip experiences lateral friction forces in different directions at each turning point, as if it is constantly being "straightened," thus automatically correcting and stabilizing its operation on the central path, effectively preventing deviation. Simultaneously, due to the use of large-diameter roller 3, medium-diameter roller 1, and small-diameter roller 2, the vertical distance D between adjacent layers of strip can be significantly reduced (compared to...). Figure 1 , Figure 2 The distance in the middle is reduced, thus greatly reducing the overall height H of the equipment under the same loop storage capacity, making the structure more compact.

[0033] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel horizontal looper, comprising a frame and a multi-layer guide roller assembly mounted on the frame, wherein a strip is wound through the guide roller assembly in an S-shaped path, characterized in that: The steering roller assembly includes at least three different diameter rollers. The inlet and outlet of the strip are located in the middle region of the looper in the length direction. Some rollers in the steering roller assembly are configured to form a large wrap angle with the strip, while others are configured to form a small wrap angle with the strip.

2. The novel horizontal slipknot according to claim 1, characterized in that: The at least three different diameter rollers include large-diameter rollers, medium-diameter rollers, and small-diameter rollers.

3. A novel horizontal slipknot according to claim 2, characterized in that: The large-diameter roller forms a small wrap angle with the strip, and the small-diameter roller forms a large wrap angle with the strip.

4. A novel horizontal slipknot according to claim 1, characterized in that: The large and small wrapping rollers are arranged alternately on the running path of the strip.

5. A novel horizontal slipknot according to claim 1, characterized in that: The inlet and outlet are at the same or similar height in the vertical direction of the loop.

6. A novel horizontal slipknot according to claim 1, characterized in that: The large wrap angle ranges from 90° to 180°, and the small wrap angle ranges from 0° to 90°.

Images