A device for assisting in the unloading of a tail of a strip

Abstract

The utility model discloses an auxiliary device for strip tail roll unloading, including bottom plate, connecting rod mechanism, installation rod, friction cloth and controller, bottom plate is used for installing in the lateral wall of steel roll trolley, connecting rod mechanism installs in the one side of bottom plate far from lateral wall, and the movable end of installation rod is connected with connecting rod mechanism, and the upper end between installation rod and bottom plate is connected with friction cloth, and friction cloth is made of elastic material, and controller is used for controlling connecting rod mechanism action, wherein, the auxiliary device is used in pairs, and two auxiliary devices are installed on the opposite lateral wall in steel roll trolley respectively, and the tail roll on steel roll trolley can be controlled by controller with the friction cloth of two auxiliary devices. The two sides of friction cloth are made to envelope the two sides of tail roll through controller, avoid tail roll to roll over, and the defect of equipment bruise, personnel safety hidden danger existing when tail roll falls is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel coil unloading technology, and in particular to an auxiliary device for unloading the tail coil of strip steel. Background Technology

[0002] The market demand for thin-gauge strip steel is large. It is rolled in several passes using a reversible cold rolling mill. After the finished product pass, the strip is rolled into a tail coil and a finished product coil on two coiling machines. Currently, the main difficulty in rolling is in the secondary rolling process. To prevent the thin-gauge strip steel from collapsing, a sleeve is often needed on the mandrel of the coiling machine before rolling.

[0003] When unloading the tail coil, the first method is to use a sleeve as a medium for unloading. After unloading, the sleeve with its outer sheath needs to be peeled off by the welding unit. However, this increases the production load of the welding unit and leads to insufficient normal sleeve turnover on site, reducing production efficiency. Therefore, the second method is adopted to unload the tail coil by reversing the mandrel to peel the strip from the sleeve.

[0004] However, the second method is only suitable for tail coils with relatively large strip thickness. When the strip thickness of the tail coil is relatively small, the center of gravity of the unloaded tail coil will be unstable, which may result in the tail coil falling and damaging the equipment, as well as safety hazards when personnel handle the fallen tail coil. Utility Model Content

[0005] To address the aforementioned problems, this application provides an auxiliary device for unloading the tail coil of strip steel.

[0006] This application provides an auxiliary device for unloading the tail coil of strip steel, including a base plate, a linkage mechanism, a mounting rod, a friction cloth, and a controller. The base plate is installed on the side wall of the steel coil trolley, the linkage mechanism is installed on the side of the base plate away from the side wall, the mounting rod is connected to the movable end of the linkage mechanism, the friction cloth is connected between the mounting rod and the upper end of the base plate, and the friction cloth is made of elastic material. The controller is used to control the action of the linkage mechanism. The auxiliary devices are used in pairs, and the two auxiliary devices are respectively installed on opposite side walls of the steel coil trolley. The controller can adjust the friction cloth of the two auxiliary devices to wrap around the tail coil on the steel coil trolley.

[0007] In some embodiments, the linkage mechanism includes an electrically controlled telescopic rod, an adjusting rod, and a driven rod. One end of the electrically controlled telescopic rod is rotatably connected to the base plate at a first point. One end of the adjusting rod is rotatably connected to the other end of the electrically controlled telescopic rod, and the other end of the adjusting rod is a movable end. One end of the driven rod is rotatably connected to the body of the adjusting rod, and the other end of the driven rod is rotatably connected to the base plate at a second point, which is located between the first point and the upper end of the base plate. The controller is used to control the extension and retraction of the electrically controlled telescopic rod.

[0008] In some implementations, the length of the driven rod is less than the length of the adjusting rod.

[0009] In some implementations, the electrically controlled telescopic rod is hinged to the base plate.

[0010] In some implementations, the adjusting rod is hinged to the electrically controlled telescopic rod.

[0011] In some implementations, one end of the driven rod is hinged to the body of the adjusting rod, and the other end of the driven rod is hinged to the base plate.

[0012] In some implementations, the mounting rod is parallel to the upper end of the base plate.

[0013] In some implementations, the controller is integrated into the mill controller within the mill where the tail coil is located.

[0014] In some implementations, the base plate is used for detachable mounting on the side wall of the steel coil trolley.

[0015] In some embodiments, the base plate is bolted to the side wall of the steel coil trolley, and the base plate has multiple bolt holes that mate with the bolts.

[0016] The beneficial effects of this application are as follows: It provides an auxiliary device for unloading strip steel coils, including a base plate, a linkage mechanism, a mounting rod, a friction cloth, and a controller. The base plate is mounted on the side wall of the steel coil trolley, and generally, the thicker side of the base plate is connected to the side wall of the steel coil trolley. The friction cloth is connected between the mounting rod and the upper end of the base plate. The controller controls the linkage mechanism to change its spatial position, thereby adjusting the spatial position of the friction cloth. In specific applications, two auxiliary devices are installed in the steel coil trolley, respectively, opposite each other. On the side wall, when the strip thickness of the tail coil on the steel coil trolley is small, the controller causes the friction cloths on both sides to wrap around the sides of the tail coil. A large amount of friction is generated between the friction cloths and the tail coil. When the tail coil is unloaded by reversing the mandrel to separate the strip from the sleeve, the friction cloths on both sides protect the tail coil and prevent it from tipping over. This improves the defects of equipment injury and personnel safety hazards when the tail coil falls. The tail coil unloading method based on reversing the mandrel to separate the strip from the sleeve increases the production efficiency of unloading the tail coil and improves the on-site sleeve turnover rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0018] Figure 1 A schematic diagram of the structure of an auxiliary device for unloading strip steel tail coil provided in this application;

[0019] Figure 2This is a schematic diagram illustrating an application scenario for an auxiliary device used for unloading strip steel tail coils, as provided in this application.

[0020] Attached diagram labels: 10-Auxiliary device, 100-Base plate, 110-Bolt hole, 200-Linkage mechanism, 210-Electrically controlled telescopic rod, 220-Adjusting rod, 221-Moving end, 230-Driven rod, 300-Mounting rod, 400-Friction cloth, 20-Steel coil trolley, 30-Tail coil. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] In recent years, the steel industry has gradually become one of my country's important industries, serving as a crucial cornerstone of the national industry and playing a pivotal role in the rapid and steady growth of the entire economy and society. Thin-gauge cold-rolled steel strips with a thickness of less than 0.35mm have a large market demand and are currently one of the main products of the steel industry. The Senkimir 20-roll reversible cold rolling mill rolls, operating at room temperature, rolls stainless steel with a thickness of 0.3-2.6mm through several passes into cold-rolled strips of various specifications with the required thickness and surface roughness. The 20-roll mill is a reversible rolling mill that uses two coilers for reciprocating rolling. The coiler mandrel has jaws that engage the strip steel. After several passes of rolling, the mill stops after the finished product pass, the strip is pressed down and picked up, the thickness gauge and speed gauge are removed from the rolling line, the mill stops supplying cooling and lubricating fluid, the uncoiling trolley is raised and the trolley seat rollers hold the steel coil in place to prevent it from loosening, and the coiler rotates to wind the tail of the strip onto the drum to form the tail coil and the finished coil. Finally, the tail coil and the finished coil are unloaded, and the reversible rolling process ends.

[0024] Depending on customer needs and the process requirements of the rolled product, it can be divided into single-pass and double-pass rolling. The double-pass rolling involves rolling to the finished thickness twice with moderate reduction rates (40-70%), followed by intermediate annealing between the two cold rolling passes. Products produced using this method have low iron loss and high magnetic flux density. For certain thin-gauge HGO steels, the double-pass cold rolling method is used.

[0025] In existing technologies, the main difficulty in secondary cold-rolled coil rolling lies in the second rolling stage. Due to the thinness of the strip steel, a sleeve is often needed on the mandrel of the coiler before rolling to prevent the thin strip from collapsing. Furthermore, the tail coil of the cold-rolled hardened coil needs to be removed after the finishing pass. Previously, thin tail coils were always removed together using a sleeve. The removed sleeve with its outer sheath needs to be peeled off by a welding unit, which increases the production load on the welding unit and leads to insufficient normal sleeve turnover on-site, reducing production efficiency.

[0026] To improve production efficiency and increase sleeve turnover, based on actual production experience and trial and error, when the strip thickness is large, the mandrel is reversed to separate the strip from the sleeve and remove the tail coil.

[0027] However, for thinner strips, this method can lead to instability in the center of gravity of the unloaded tail coil, causing it to fall and injure equipment and personnel, posing safety hazards. Therefore, the current method still uses a sleeve as a medium for unloading. However, the existing technology increases the production load of the welding unit and leads to insufficient sleeve turnover, resulting in low production efficiency when unloading thin strips. Therefore, the existing technology has problems with insufficient production efficiency when unloading thin tail coils and a series of safety issues caused by the tail coil falling.

[0028] Please refer to Figure 1 This application discloses an auxiliary device 10 for unloading strip steel tail coils, comprising a base plate 100, a linkage mechanism 200, a mounting rod 300, a friction cloth 400, and a controller. The linkage mechanism 200 is mounted on the thickness side of the base plate 100 and has a movable end 221. The controller controls the movement of the linkage mechanism 200, thereby controlling the spatial position change of the movable end 221. The mounting rod 300 is connected to the movable end 221 of the linkage mechanism 200. The friction cloth 400 is connected between the mounting rod 300 and the upper end of the base plate 100 and is made of an elastic material. The controller adjusts the spatial position of the friction cloth 400.

[0029] In some implementations, the controller is integrated into the mill controller, which belongs to the mill where the tail coil 30 is located. The control of this auxiliary device is achieved by utilizing the existing mill controller, without the need to add a separate controller structure.

[0030] Please refer to the reference. Figure 1 and Figure 2In practical application, the base plate 100 of this auxiliary device 10 is installed on the side wall of the steel coil trolley 20, with the thicker side of the base plate 100 connected to the steel coil trolley 20. The linkage mechanism 200 is installed on the side of the base plate 100 away from the thicker side of the steel coil trolley 20. The auxiliary devices 10 are used in pairs, with the two auxiliary devices 10 installed on opposite sides of the steel coil trolley 20 respectively. The friction cloth 400 can be adjusted by the controller to wrap around the tail coil 30 on the steel coil trolley 20, so that the friction cloth 400 of each of the two auxiliary devices 10 wraps around one side of the tail coil 30 respectively.

[0031] When the strip thickness of the tail coil 30 on the coil trolley 20 is relatively small, the controller causes the friction cloths 400 on both sides to wrap around the sides of the tail coil 30. A large amount of friction is generated between the friction cloths 400 and the tail coil 30. When the tail coil 30 is unloaded by reversing the mandrel to separate the strip from the sleeve, the friction cloths 400 on both sides protect the tail coil 30, preventing it from tipping over and mitigating the equipment injury and personnel safety hazards that would occur if the tail coil 30 falls. This method of unloading the tail coil 30 by reversing the mandrel to separate the strip from the sleeve increases the production efficiency of unloading the tail coil 30 and improves the on-site sleeve turnover rate.

[0032] With this auxiliary device 10, the tail coil 30 with a thinner strip can be removed by reversing the mandrel to separate the strip from the sleeve; the tail coil 30 with a thicker strip does not need to use this auxiliary device 10 and can be removed directly by reversing the mandrel to separate the strip from the sleeve.

[0033] The above specifies that the base plate 100 is mounted on the side wall of the steel coil trolley 20, and the connection method can be welding or a detachable connection. For example... Figure 1 The bolt holes 110 shown in the figure are used to install the base plate 100 onto the side wall of the steel coil trolley 20 by means of bolts.

[0034] Regarding the linkage structure, there are multiple possible implementation methods; please refer to [the relevant documentation]. Figure 1 This embodiment provides a specific implementation method. The linkage mechanism 200 includes an electrically controlled telescopic rod 210, an adjusting rod 220, and a driven rod 230. The electrically controlled telescopic rod 210 is controlled to extend and retract by a controller, while the lengths of the adjusting rod 220 and the driven rod 230 remain unchanged.

[0035] The electrically controlled telescopic rod 210 is a common linear actuator, mainly composed of a motor, a screw, a nut, and a housing. It achieves telescopic movement by driving the screw through the motor. The screw converts rotational motion into linear motion. When the screw rotates, the nut, which is threaded with the screw, moves linearly along the screw, thereby driving the extension and retraction of the load.

[0036] One end of the electrically controlled telescopic rod 210 is rotatably connected to the base plate 100 at a first point. One end of the adjusting rod 220 is rotatably connected to the other end of the electrically controlled telescopic rod 210, and the other end of the adjusting rod 220 is a movable end 221. One end of the driven rod 230 is rotatably connected to the body of the adjusting rod 220, and the other end of the driven rod 230 is rotatably connected to the base plate 100 at a second point, which is located between the first point and the upper end of the base plate 100. By changing the length of the electrically controlled telescopic rod 210, the rod rotates accordingly, adjusting the relative position of the movable end 221 and the base plate 100, thereby changing the spatial distribution of the friction cloth 400. The friction cloth 400 can be adjusted to a standby state away from the tail roll 30, or it can be adjusted to a working state that envelops the tail roll 30.

[0037] In some implementations, the length of the driven rod 230 is less than the length of the adjusting rod 220.

[0038] Regarding the rotatable connection between the links in the linkage mechanism 200, a hinged rotatable connection is preferred. For example, the electrically controlled telescopic rod 210 is hinged to the base plate 100, the adjusting rod 220 is hinged to the electrically controlled telescopic rod 210, the driven rod 230 is hinged to the rod body of the adjusting rod 220, and the driven rod 230 is hinged to the base plate 100.

[0039] Regarding the rotatable connection between the links in the linkage mechanism 200, other connection methods besides hinges can also be used, such as bearing and shaft mating.

[0040] In some implementation methods, please refer to Figure 1 The mounting rod 300 is parallel to the upper end of the base plate 100, which allows the friction cloth 400 to be distributed more evenly between the mounting rod 300 and the base plate 100.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An auxiliary device for unloading strip steel tail coils, characterized in that, include: Base plate, used for mounting on the side wall of the steel coil trolley; A linkage mechanism is installed on the side of the base plate away from the side wall; The mounting rod is connected to the movable end of the linkage mechanism; A friction cloth, connected between the mounting rod and the upper end of the base plate, is made of an elastic material; Controller, used to control the movement of the linkage mechanism; The auxiliary devices are used in pairs, with the two auxiliary devices respectively installed on opposite side walls of the steel coil trolley. The controller controls the friction cloth of the two auxiliary devices to wrap around the tail coil on the steel coil trolley.

2. The auxiliary device for unloading strip steel tail coils as described in claim 1, characterized in that, The linkage mechanism includes: An electrically controlled telescopic rod, one end of which is rotatably connected to the base plate at a first point; An adjusting rod, one end of which is rotatably connected to the other end of the electrically controlled telescopic rod, the other end of which is the movable end; A driven rod, one end of which is rotatably connected to the body of the adjusting rod, and the other end of which is rotatably connected to the base plate at a second point, the second point being located between the first point and the upper end of the base plate; The controller is used to control the extension and retraction of the electrically controlled telescopic rod.

3. The auxiliary device for unloading strip steel tail coils as described in claim 2, characterized in that, The length of the driven rod is less than the length of the adjusting rod.

4. The auxiliary device for unloading strip steel tail coils as described in claim 2, characterized in that, The electrically controlled telescopic rod is hinged to the base plate.

5. The auxiliary device for unloading strip steel tail coils as described in claim 2, characterized in that, The adjusting rod is hinged to the electrically controlled telescopic rod.

6. The auxiliary device for unloading strip steel tail coils as described in claim 2, characterized in that, One end of the driven rod is hinged to the body of the adjusting rod, and the other end of the driven rod is hinged to the base plate.

7. The auxiliary device for unloading strip coils as described in any one of claims 1-6, characterized in that, The mounting rod is parallel to the upper end of the base plate.

8. The auxiliary device for unloading strip steel tail coils as described in claim 1, characterized in that, The controller is integrated into the mill controller of the mill where the tail coil is located.

9. The auxiliary device for unloading strip steel tail coils as described in claim 1, characterized in that, The base plate is designed for detachable mounting on the side wall of the steel coil trolley.

10. The auxiliary device for unloading strip coils as described in claim 9, characterized in that, The base plate is bolted to the side wall of the steel coil trolley, and the base plate has multiple bolt holes that mate with the bolts.

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