Reversible cold-rolling mill thin-gauge strip steel broken strip processing tool
By designing the clamping rod, the biting part, and the bearing component to work together, the problem of clamping instability in the handling of broken strip in reversible cold rolling mills was solved, achieving efficient and safe strip breaking, and ensuring production continuity and equipment safety.
Patent Information
- Application Number
- CN202520296357.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing strip breakage handling tools have poor clamping stability in reversible cold rolling mills, resulting in low strip breakage handling efficiency and a tendency for the strip to slip or break again, affecting production progress and equipment safety.
A tool comprising a clamping rod, a biting part, a lifting block, and a bearing component is designed. By cooperating with the biting part and the lifting block, and utilizing the rotation angle and chamfer structure of the bearing component, the clamping area is increased and shear stress is dispersed, thereby achieving stable clamping and support and reducing the risk of re-fracture.
It enables rapid and stable strip breakage handling, provides a reliable clamping foundation, ensures the normal operation of the cold rolling mill, improves production efficiency, and reduces the risk of strip breakage recurring.
Smart Images
Figure CN223775679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of strip steel breakage treatment tools, specifically a reversible cold rolling mill thin strip steel breakage treatment tool. Background Technology
[0002] In modern steel production, reversible cold rolling mills are widely used for rolling thin-gauge strip steel. With the increasing market demand for thin-gauge strip steel and the continuously rising requirements for its quality and precision, the challenges faced by reversible cold rolling mills in the production process are becoming increasingly severe.
[0003] Thin strip steel is more susceptible to various factors during the rolling process due to its thinness, which leads to frequent strip breakage. Once a strip breaks, not only will the production process be forced to stop, increasing production costs, but it may also cause some damage to the equipment. At the same time, the treatment of strip steel after breakage is also extremely difficult. Traditional treatment methods are inefficient and cannot guarantee the quality of subsequent processing of the strip steel.
[0004] Currently, existing strip breakage handling tools or methods on the market have many defects; for example, some tools have poor clamping stability, which can easily cause the strip to slip or break again when handling broken strips, resulting in repeated handling work and seriously affecting production progress. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a tool for reversible cold rolling mill thin strip steel breakage treatment.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A tool for handling broken strip steel in thin-gauge reversible cold rolling mills includes a clamping rod and a biting part; one end of the clamping rod is provided with a pair of parallel biting parts;
[0008] The inside of the biting part is connected to a lifting block that slides up and down on the biting surface. The biting part has a cavity for the lifting block to move up and down. The bottom of the biting part is provided with an L-shaped plate that is rotatably connected to the biting part. The top of the L-shaped plate is rotatably connected to a support member. The rotation angle of the support member is 10°-20°. The biting part has an inner cavity for the L-shaped plate to rotate.
[0009] The height of the bearing member in its natural state is lower than the occlusal surface of the occlusal part, while the height of the lifting block is higher than the occlusal surface of the occlusal part.
[0010] Preferably, the edge of the support member is chamfered, and the support member is plate-shaped or arc-shaped.
[0011] Preferably, a spring is installed at the bottom end of the lifting block, and the other end of the spring is fixed to the engagement part.
[0012] Preferably, a limiting block is provided at the bottom end of the lifting block, and the limiting block is in contact with the inner wall of the cavity of the biting part.
[0013] Preferably, the lifting block is provided with an inclined surface on the outside of the biting part, and the lowest point of the inclined surface is located inside the biting part.
[0014] Preferably, when the lifting block has the maximum rotational stroke, the upper surface of the lifting block is flush with the engagement part, and the opposing bearing members are in contact with each other.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The bearing component has a rotation angle of 10°-20°. In its natural state, it is lower than the biting surface of the biting part. After contacting the steel strip, it gradually rotates. When the lifting block has the maximum rotation stroke, the bearing component is in contact with the steel strip, increasing the clamping area of the steel strip and assisting the biting part to clamp the steel strip more stably.
[0017] The edges of the load-bearing components are chamfered and can be plate-shaped or arc-shaped. They can swing and support to a certain extent as the steel strip moves, effectively dispersing the shear stress generated when the interlocking part clamps the steel strip and reducing the risk of the steel strip breaking again.
[0018] Overall structure: Through the coordinated work of clamping rods, biting parts, lifting blocks, L-shaped plates, and bearing components, it can quickly and stably clamp the broken strip when thin strip steel breaks in a reversible cold rolling mill, providing a stable and reliable clamping foundation for subsequent strip breakage processing operations such as traction and butt welding, ensuring the normal operation of the cold rolling mill and improving production efficiency;
[0019] Lifting block: A spring is installed at the bottom to assist in resetting after operation; a limit block is provided at the bottom to prevent excessive movement; there is an inclined surface on the outside to facilitate the steel belt to enter the lifting block along the inclined surface and to make it easy to clamp the steel belt. Attached Figure Description
[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the reversible cold rolling mill thin strip steel breakage treatment tool of this utility model;
[0022] Figure 2 This is a partial structural schematic diagram of the reversible cold rolling mill thin strip steel breakage treatment tool of this utility model;
[0023] Figure 3 This is a partial cross-sectional view of the reversible cold rolling mill thin strip steel breakage treatment tool of this utility model;
[0024] Figure 4 This is a cross-sectional view of the reversible cold rolling mill thin strip steel breakage treatment tool of this utility model;
[0025] Figure 5 This is a schematic diagram of the mounting structure of the bearing component of the reversible cold rolling mill thin strip steel breakage treatment tool of this utility model.
[0026] The diagram shows the following labels: 1. Clamping rod; 2. Engaging part; 3. Lifting block; 4. L-shaped plate; 5. Bearing component; 6. Inner cavity. Detailed Implementation
[0027] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0028] Example
[0029] like Figure 1-5 As shown, a reversible cold rolling mill thin strip steel breakage treatment tool includes a clamping rod 1 and a biting part 2;
[0030] When a thin strip breaks in a reversible cold rolling mill and this tool is needed to handle the situation, the operator first holds the clamping rod 1 and brings the tool close to the broken strip. At this time, since the height of the lifting block 3 is higher than the height of the biting surface of the biting part 2, when the biting part 2 is aligned with the broken strip position and gradually moved closer, the lifting block 3 will contact the strip first.
[0031] At the moment of contact with the strip, the strip exerts pressure on the lifting block 3. This pressure overcomes the elastic force of the spring at the bottom of the lifting block 3, causing the lifting block 3 to slide downward along the cavity inside the biting part 2. As the lifting block 3 slides down, the biting part 2 gradually contacts the strip and begins to bite. During the biting process, as the biting depth increases, the lifting block 3 gives the L-shaped plate 4 a downward rotational force, causing the L-shaped plate 4, which is rotatably connected to the biting part 2, to rotate.
[0032] As the L-shaped plate 4 rotates, it causes the bearing member 5 connected to its top to come into contact with the steel strip, thus assisting in supporting the steel strip. When supporting the steel strip, because the rotation angle of the bearing member 5 is 10°-20°, during this rotation process, the bearing member 5 gradually rotates upward from a position below the engagement surface of the engagement part 2 in its natural state. When the rotation stroke of the lifting block 3 reaches its maximum, the upper surface of the lifting block 3 is flush with the engagement part 2, and at this time, the corresponding bearing member 5 also fits together.
[0033] After the bearing member 5 is attached, on the one hand, it increases the clamping area of the steel strip, which helps the biting part 2 to clamp the steel strip more stably; on the other hand, when the steel strip is operated in the future, the bearing member 5 can swing and support to a certain extent as the steel strip moves. This swing support can effectively disperse the shear stress generated when the biting part 2 clamps the steel strip, thereby greatly reducing the risk of the steel strip clamped by the biting part 2 breaking again, and providing a stable and reliable clamping foundation for the smooth operation of the broken strip, such as traction and docking.
[0034] Clamping rod 1: The handheld part of the tool, with a pair of parallel interlocking parts 2 at one end, which makes it convenient for the operator to hold and control the tool to operate on the broken strip.
[0035] Occlusal part 2: Inside the occlusal surface, a lifting block 3 is slidably connected to the occlusal surface. The occlusal part 2 has a cavity for the lifting block 3 to move up and down. At the bottom, an L-shaped plate 4 is rotatably connected to the occlusal part 2. The occlusal part 2 also has an inner cavity 6 for it to rotate.
[0036] Lifting block 3: A spring is installed at the bottom end, and the other end is fixed to the biting part 2. It is used to assist the lifting block 3 in resetting when the part is working. A limit block is provided at the bottom end of the lifting block 3, which fits against the inner wall of the cavity of the biting part 2 to prevent the lifting block 3 from moving excessively. An inclined surface is provided on the outside of the biting part 2, and the lowest point of the inclined surface is located inside the biting part 2. When clamping the steel strip, the steel strip can enter the lifting block 3 along the inclined surface, which facilitates the entry of the steel strip. When the rotation stroke is at its maximum, the upper surface of the lifting block 3 is flush with the biting part 2.
[0037] L-shaped plate 4: Rotatably connected to the bottom of the interlocking part 2, and rotatably connected to the top of the plate 5.
[0038] The bearing member 5 has a rotation angle of 10°-20° and is lower than the engagement surface height of the engagement part 2 in its natural state. It has a chamfer at the edge and can be plate-shaped or arc-shaped. When the lifting block 3 rotates to its maximum stroke, the bearing members 5 are in contact with each other. On the one hand, the bearing member 5 assists the engagement part 2 in clamping the steel strip, increasing the clamping area and improving the clamping stability. On the other hand, the bearing member 5 can swing and support the steel strip to a certain extent, which can effectively reduce the shear stress generated when the engagement part 2 clamps the steel strip and effectively prevent the steel strip clamped by the engagement part 2 from breaking.
[0039] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A tool for handling broken strips of thin-gauge steel from a reversible cold rolling mill, characterized in that: It includes a clamping rod (1) and a biting part (2); one end of the clamping rod (1) is provided with a pair of parallel biting parts (2); The inside of the biting part (2) is connected to a lifting block (3) which slides up and down on the biting surface. The biting part (2) has a cavity for the lifting block (3) to move up and down. The bottom of the biting part (2) is provided with an L-shaped plate (4) which is rotatably connected to the biting part (2). The top of the L-shaped plate (4) is rotatably connected to a bearing member (5). The rotation angle of the bearing member (5) is 10°-20°. The biting part (2) has an inner cavity (6) for the L-shaped plate (4) to rotate. The bearing member (5) is naturally lower than the occlusal surface of the occlusal part (2), and the lifting block (3) is higher than the occlusal surface of the occlusal part (2).
2. The reversible cold rolling mill thin strip breakage treatment tool according to claim 1, characterized in that: The edge of the support member (5) is chamfered, and the support member (5) is plate-shaped or arc-shaped.
3. The reversible cold rolling mill thin strip steel breakage treatment tool according to claim 2, characterized in that: A spring is installed at the bottom end of the lifting block (3), and the other end of the spring is fixed to the engagement part (2).
4. The reversible cold rolling mill thin strip steel breakage treatment tool according to claim 3, characterized in that: The bottom end of the lifting block (3) is provided with a limiting block, which is in contact with the inner wall of the cavity of the biting part (2).
5. The reversible cold rolling mill thin strip steel breakage treatment tool according to claim 4, characterized in that: The lifting block (3) is provided with an inclined surface on the outside of the biting part (2), and the lowest point of the inclined surface is located inside the biting part (2).
6. The reversible cold rolling mill thin strip breakage treatment tool according to claim 5, characterized in that: When the rotation stroke of the lifting block (3) is at its maximum, the upper surface of the lifting block (3) is flush with the biting part (2), and the opposite bearing member (5) is in contact with each other.