Steel coil unwinding device with anti-shake deviation correction function

Abstract

The utility model discloses a steel roll unwinding device with anti -shake deviation correction function, including feeding frame, support unit and guide material deviation correction mechanism, the feeding frame is provided with pivot, and the pivot is used for supporting steel roll. Support unit is provided with a plurality of, a plurality of support unit is along the circumferential interval arrangement of pivot, and the support unit is used to abut the inner wall of steel roll to support and fix steel roll. Guide material deviation correction mechanism is arranged on the output direction of feeding frame, and includes guide frame, deviation correction detector and deviation correction executor, and the guide frame is adjacent to the setting of feeding frame, and the guide frame is provided with a plurality of guide rollers, and a plurality of guide rollers are all rotationally connected in the guide frame, and a plurality of guide rollers are parallel interval arrangement, to guide steel band, and deviation correction detector is used for detecting the transverse position of steel band, and deviation correction executor is connected with guide frame and or at least one guide roller, is used for according to deviation correction detector's signal drive guide frame or guide roller transverse movement, to correct the deviation of steel band.

Description

Technical Field

[0001] This utility model relates to the technical field of steel coil processing equipment, and in particular to a steel coil unwinding device with anti-shaking and deviation correction functions. Background Technology

[0002] In the steel processing industry, steel coils, as a basic raw material, must undergo processes such as uncoiling, leveling, and shearing to be processed into steel strips of the required dimensions. Traditional steel coil uncoiling devices often use rigid top cones or expansion and contraction drums with fixed diameters to support the steel coils. For steel coils with tolerances in their inner diameter, rigid support can easily lead to poor contact, causing severe vibrations during high-speed uncoiling. Furthermore, after the steel strip is released from the coil, it needs to pass through a free zone before entering subsequent equipment. Due to the inherent pyramidal errors of the steel coil itself, as well as the alignment errors between the uncoiling and guiding devices, the steel strip is highly prone to lateral deviation during this process. Traditional fixed guide rollers can only provide passive guidance and cannot actively correct deviations. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a steel coil unwinding device with anti-shake and deviation correction functions, which can suppress unwinding vibration and correct steel strip deviation in real time during transmission, thereby achieving high-speed, stable, and continuous automated production.

[0004] According to a first aspect of the present invention, a steel coil unwinding device with anti-shake and deviation correction function includes a feeding frame, support units, and a guide and deviation correction mechanism. The feeding frame is provided with a rotating shaft for supporting the steel coil. Multiple support units are provided, arranged circumferentially at intervals along the rotating shaft, and each support unit abuts against the inner wall of the steel coil to internally support and fix it. The guide and deviation correction mechanism is located in the output direction of the feeding frame and includes a guide frame, a deviation correction detector, and a deviation correction actuator. The guide frame is adjacent to the feeding frame and has multiple guide rollers, all rotatably connected to the guide frame and arranged in parallel intervals to guide the steel strip. The deviation correction detector is used to detect the lateral position of the steel strip. The deviation correction actuator is connected to the guide frame and / or at least one guide roller, and is used to drive the guide frame or guide rollers to move laterally according to the signal from the deviation correction detector to correct the deviation of the steel strip.

[0005] The steel coil unwinding device with anti-shake and deviation correction function according to the embodiments of this utility model has at least the following beneficial effects: Through the stable rotating shaft design of the feeding frame and the internal support fixing effect of the support unit, the shaking and vibration of the steel coil during the unwinding process can be significantly reduced. The high-precision machining and low-friction design of the rotating shaft, as well as the tight fit between the support unit and the inner wall of the steel coil, ensure the stability of the steel coil unwinding, providing a stable steel strip input for subsequent processing steps, and improving the processing quality and consistency of the product. Furthermore, the deviation correction detector in the guide and deviation correction mechanism can detect the lateral position of the steel strip in real time and accurately. Once deviation is detected, the deviation correction actuator will react quickly, driving the guide frame or guide roller to move laterally, promptly correcting the steel strip to the correct transmission position. This real-time deviation correction function can effectively avoid problems such as uneven edges of processed products and equipment failure caused by steel strip deviation, improving production efficiency and product quality.

[0006] According to some embodiments of the present invention, it also includes a central controller, which is signal-connected to the drive component of the rotating shaft, the correction detector, and the correction actuator, for coordinating and controlling the unwinding speed and the correction action.

[0007] According to some embodiments of this utility model, the correction actuator is a servo electric cylinder, hydraulic cylinder, or pneumatic cylinder, with its base fixed to the ground or frame, and its output end connected to the bottom or side of the guide frame to drive the entire guide frame to move laterally.

[0008] According to some embodiments of this utility model, there are two correction actuators, which are respectively connected to the two ends of a laterally movable guide roller, and are used to adjust the axial angle of the guide roller to form a correction roller.

[0009] According to some embodiments of the present invention, a tension detection mechanism is also included. The tension detection mechanism is disposed at the material guiding and correcting mechanism for detecting the real-time tension of the steel strip and is connected to the central controller. The central controller is configured to adjust the rotational speed of the drive component according to the real-time tension.

[0010] According to some embodiments of the present invention, four support units are provided, and the four support units are arranged circumferentially around the rotating shaft at equal intervals.

[0011] According to some embodiments of the present invention, the support unit includes a fixed plate, a movable plate, and multiple parallel hinged connecting rods. The fixed plate is connected to the rotating shaft, and the two ends of the connecting rods are respectively hinged to the fixed plate and the movable plate, so that the movable plate can move radially along the rotating shaft, thereby enabling the movable plates of multiple support units to jointly form a support surface adapted to the inner diameter of the steel coil.

[0012] According to some embodiments of the present invention, the outer surface of the movable plate is provided with a replaceable anti-slip liner, which is a polymer composite material product.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a steel coil unwinding device with anti-shake and deviation correction function according to an embodiment of the present invention.

[0015] Reference numerals: 100 for feeding rack; 110 for rotating shaft; 200 for support unit; 210 for fixing plate; 220 for connecting rod; 221 for locking pin; 230 for movable plate; 231 for anti-slip liner; 300 for material guiding and correction mechanism; 310 for material guide frame; 320 for guide roller; 330 for correction actuator; 340 for correction detector. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0018] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0020] Reference Figure 1 This utility model proposes a steel coil unwinding device with anti-shake and deviation correction function, including a feeding frame 100, a support unit 200, and a material guiding and deviation correction mechanism 300. Specifically, the feeding frame 100 is provided with a rotating shaft 110, which is made of alloy steel. The rotating shaft 110 can be fixed to the feeding frame by bearings to ensure that the rotating shaft 110 can rotate smoothly. The support units 200 are evenly distributed around the rotating shaft 110, ensuring that the included angle between any two adjacent support units 200 is the same. The material guiding and deviation correction mechanism 300 has a guide frame 310 welded from aluminum alloy profiles, which has high strength and rigidity. The guide frame 310 is provided with guide rollers 320, and the spacing between adjacent guide rollers 320 is adjustable. The material guiding and deviation correction structure also includes a deviation correction detector 340 and a deviation correction actuator 330, wherein the deviation correction detector 340 can be a photoelectric sensor, which can simultaneously detect the position of both sides of the steel strip edge. The 330 correction actuator can be equipped with an electric push rod or an adjusting rod.

[0021] In actual production, the steel coil is placed on the rotating shaft 110 of the feeding rack 100. The internal support of the support unit 200 stabilizes the steel coil on the rotating shaft 110. After starting the equipment, the rotating shaft 110 drives the steel coil to rotate and unwind. The steel strip is then transported via the guide rollers 320 on the guide rack 310. When the steel strip deviates from its designated position, a photoelectric sensor detects the change in the edge position and transmits the signal to the correction actuator 330. Based on the magnitude and direction of the signal, the correction actuator 330 drives the guide rack 310 or the guide rollers 320 to move laterally, returning the steel strip to the correct transport position. Simultaneously, due to the stable rotation of the rotating shaft 110 and the effective support of the support unit 200, vibrations during unwinding are significantly suppressed, ensuring high-speed and stable transport of the steel strip.

[0022] Understandably, the stable rotating shaft 110 design of the feeding rack 100 and the internal support and fixing effect of the support unit 200 can significantly reduce the swaying and shaking of the steel coil during unwinding. The high-precision machining and low-friction design of the rotating shaft 110, as well as the tight fit between the support unit 200 and the inner wall of the steel coil, ensure the stability of the steel coil unwinding, providing a stable steel strip input for subsequent processing steps and improving the processing quality and consistency of the product. Meanwhile, the correction detector 340 in the guide and correction mechanism 300 can detect the lateral position of the steel strip in real time and accurately. Once the steel strip is detected to be off-track, the correction actuator 330 will react quickly, driving the guide rack 310 or guide roller 320 to move laterally, promptly correcting the steel strip to the correct transmission position. This real-time correction function can effectively avoid problems such as uneven edges of processed products and equipment failure caused by steel strip misalignment, improving production efficiency and product quality.

[0023] In the steel coil unwinding device with anti-shake and deviation correction function of this utility model, a central controller is also included, which can be a programmable logic controller (PLC). The drive component of the rotating shaft 110 is a motor, which is connected to the central controller via a signal line to receive the speed control signal sent by the central controller. The deviation correction detector 340 is a high-precision photoelectric sensor that transmits the detected lateral position signal of the steel strip to the central controller. The deviation correction actuator 330 is an electric push rod, which is also connected to the central controller signal and receives the drive command sent by the central controller. During the production process, the operator sets the unwinding speed of the steel coil through the human-machine interface. The central controller sends a control signal to the motor driver according to the set value to adjust the motor speed, thereby achieving precise control of the steel coil unwinding speed. When the photoelectric sensor detects deviation of the steel strip, it transmits the deviation signal to the central controller. After analyzing and processing the signal, the central controller sends a drive command to the electric push rod, which drives the guide frame 310 or the guide roller 320 to move laterally according to the command, correcting the deviation of the steel strip. The central controller coordinates the unwinding speed and correction actions in real time to ensure the stability and efficiency of the entire production process.

[0024] It's easy to understand that by setting up a central controller, centralized and coordinated control of the unwinding speed and the correction action is achieved. On the one hand, the unwinding speed can be precisely adjusted according to different production needs, improving production flexibility and adaptability. On the other hand, when the steel strip deviates, the central controller can quickly respond and accurately control the action of the correction actuator 330 to correct the steel strip deviation in a timely manner, avoiding production failures and product quality problems caused by deviation. At the same time, centralized control reduces manual intervention, improves the degree of automation and production efficiency, and reduces production costs.

[0025] Optionally, the correction actuator 330 is a servo electric cylinder, whose base is securely fixed to the frame with bolts. The output end of the servo electric cylinder is connected to the bottom of the guide frame 310 via a connector. During production, when the correction detector 340 detects that the steel strip is off-track, it transmits the off-track signal to the central controller. The central controller sends a control signal to the servo electric cylinder based on the direction and degree of off-track. After receiving the signal, the servo electric cylinder's internal servo motor drives the lead screw to rotate, converting the rotational motion into linear motion. This linear motion, through the output end, drives the guide frame 310 to move precisely laterally in the horizontal direction, thereby returning the steel strip to the correct transmission position.

[0026] Reference Figure 1 In some embodiments, two correction actuators 330 are provided, each connected to one end of a laterally movable guide roller 320. The guide roller 320 is mounted on the guide frame 310 via a slide rail or slider structure, enabling it to move laterally in the horizontal direction. The correction actuator 330 is an electric push rod, the base of which is fixed to the guide frame 310, and its output end is connected to both ends of the guide roller 320. By setting two correction actuators 330 respectively connected to both ends of the guide roller 320, the axial angle of the guide roller 320 is adjusted to form a correction roller, which has unique advantages. Compared with the traditional correction method of a single moving guide frame 310, the correction roller can more flexibly deal with local deviations of the steel strip. It can precisely adjust the angle of the guide roller 320 according to the specific direction and degree of steel strip deviation, so that the steel strip is subjected to more precise lateral force during transmission, thereby quickly and effectively correcting the deviation. Moreover, this correction method has a small impact on the overall structure of the equipment. It will not affect the normal operation of other components due to the large movement of the guide frame 310, thus improving the efficiency and accuracy of correction and ensuring the stability of steel belt transmission.

[0027] Optionally, in some embodiments, the material guiding and correcting mechanism 300 further includes a tension detection mechanism employing a tension sensor, mounted on the guide roller 320 of the material guiding and correcting mechanism 300. The tension sensor can detect the tension of the steel strip in real time during transmission and convert the detection signal into an electrical signal, which is then transmitted to the central controller. The central controller is an industrial computer with data processing and control functions. During production, the tension sensor continuously detects the real-time tension of the steel strip and transmits the data to the central controller. The central controller analyzes and processes the real-time tension data and compares it with a preset tension range. If the real-time tension exceeds the preset range, the central controller sends an adjustment signal to the driver of the rotating shaft 110 drive component based on the tension deviation, adjusting the motor speed. For example, when the real-time tension is too high, the central controller reduces the motor speed, decreases the unwinding speed of the steel coil, thereby reducing the tension of the steel strip; when the real-time tension is too low, the central controller increases the motor speed, increases the unwinding speed of the steel coil, and increases the tension of the steel strip. In this way, the central controller adjusts the tension of the steel strip in real time to keep it within a suitable range.

[0028] Reference Figure 1 It should be noted that the steel coil unwinding device consists of four support units 200. These four support units 200 are precisely designed and installed, equidistantly and evenly arranged around the circumference of the rotating shaft 110. During installation, the center position of the rotating shaft 110 is first determined, and then, with the center of the rotating shaft 110 as the center, the four support units 200 are installed on the circumference, with a central angle of 90° between adjacent support units 200. The support arms and heads abut against the inner wall of the steel coil, achieving internal support and fixation. During production, after the steel coil is placed on the rotating shaft 110, the four support units 200 work simultaneously, evenly supporting the inner wall of the steel coil from four directions, stabilizing the center of gravity of the steel coil and reducing swaying and shaking caused by center of gravity shift. This uniform support method ensures that the steel coil remains stable during unwinding, providing a stable foundation for subsequent steel strip transmission and processing.

[0029] Specifically, the support unit 200 consists of a fixed plate 210, a movable plate 230, and multiple parallel hinged connecting rods 220. The fixed plate 210 is bolted to the rotating shaft 110, ensuring a secure connection. The multiple parallel hinged connecting rods 220 are hinged at both ends to the fixed plate 210 and the movable plate 230, forming a deformable parallelogram structure. When installing the steel coil, after the coil is placed on the rotating shaft 110, the inner diameter of the coil compresses the movable plate 230, causing the connecting rods 220 to rotate hingedly, making the movable plate 230 move radially outward along the rotating shaft 110. The movable plates 230 of the multiple support units 200 work together to automatically adjust their position according to the inner diameter of the steel coil, forming a support surface that adapts to the inner diameter of the steel coil, thereby achieving internal support and fixation of the steel coil. During unwinding, this adaptive support structure maintains a tight fit with the inner wall of the steel coil, ensuring stable unwinding. The structural design of this support unit 200 offers significant advantages. Through the combination of the fixed plate 210, the movable plate 230, and the hinged connecting rod 220, the movable plate 230 achieves automatic radial movement along the rotating shaft 110. This allows for automatic adjustment of the size and shape of the supporting surface according to the inner diameter of different steel coils, exhibiting excellent adaptability and versatility. It can accommodate steel coils of various specifications and sizes without frequent replacement of support components, improving the efficiency and flexibility of the equipment. Simultaneously, this structure provides stable and reliable internal support force, effectively preventing swaying and displacement of the steel coil during unwinding, ensuring a smooth unwinding process and providing a stable steel strip input for subsequent processing steps.

[0030] Reference Figure 1 A replaceable anti-slip liner 231 is provided on the outer surface of the movable plate 230. The anti-slip liner 231 is made of a high-polymer composite material and is fixed to the movable plate 230 by bolts or clips. During production, when the steel coil is placed on the support unit 200, the anti-slip liner 231 directly contacts the inner wall of the steel coil. The anti-slip liner 231, made of high-polymer composite material, has a high coefficient of friction, which increases the friction between it and the inner wall of the steel coil, preventing relative sliding between the steel coil and the support unit 200 due to rotation during unwinding. When the anti-slip liner 231 wears or is damaged due to prolonged use, it can be easily removed from the movable plate 230 and replaced with a new one. This replaceable design extends the service life of the support unit 200 and reduces equipment maintenance costs.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A steel coil unwinding device with anti-shake and deviation correction function, characterized in that, include: The loading rack is equipped with a rotating shaft, which is used to support the steel coil; Multiple support units are provided, and the multiple support units are arranged at intervals along the circumference of the rotating shaft. The support units are used to abut against the inner wall of the steel coil to internally support and fix the steel coil. A material guiding and correction mechanism, disposed in the output direction of the loading rack, includes a material guiding rack, a correction detector, and a correction actuator. The material guiding rack is disposed adjacent to the loading rack and is provided with multiple guide rollers, all of which are rotatably connected to the material guiding rack and are arranged in parallel intervals to guide the steel strip. The correction detector is used to detect the lateral position of the steel strip. The correction actuator is connected to the material guiding rack and / or at least one guide roller and is used to drive the material guiding rack or guide roller to move laterally according to the signal from the correction detector to correct the steel strip deviation.

2. The steel coil unwinding device with anti-shake and deviation correction function according to claim 1, characterized in that, It also includes a central controller, which is connected to the drive unit of the rotating shaft, the correction detector and the correction actuator, and is used to coordinate and control the unwinding speed and the correction action.

3. The steel coil unwinding device with anti-shake and deviation correction function according to claim 2, characterized in that, The correction actuator is a servo electric cylinder, hydraulic cylinder, or pneumatic cylinder. Its base is fixed to the ground or frame, and its output end is connected to the bottom or side of the guide frame to drive the entire guide frame to move laterally.

4. The steel coil unwinding device with anti-shake and deviation correction function according to claim 1, characterized in that, There are two correction actuators, which are respectively connected to the two ends of the laterally movable guide roller and are used to adjust the axial angle of the guide roller to form a correction roller.

5. The steel coil unwinding device with anti-shake and deviation correction function according to claim 2, characterized in that, It also includes a tension detection mechanism, which is located at the material guiding and correcting mechanism to detect the real-time tension of the steel strip and is connected to the central controller. The central controller is configured to adjust the rotational speed of the drive component according to the real-time tension.

6. The steel coil unwinding device with anti-shake and deviation correction function according to claim 1, characterized in that, The support unit consists of four units, which are arranged equidistantly around the rotating shaft.

7. The steel coil unwinding device with anti-shake and deviation correction function according to claim 6, characterized in that, The support unit includes a fixed plate, a movable plate, and multiple parallel hinged connecting rods. The fixed plate is connected to the rotating shaft, and the two ends of the connecting rods are respectively hinged to the fixed plate and the movable plate, so that the movable plate can move radially along the rotating shaft, thereby enabling the movable plates of multiple support units to jointly form a support surface that adapts to the inner diameter of the steel coil.

8. The steel coil unwinding device with anti-shake and deviation correction function according to claim 7, characterized in that, The outer surface of the movable plate is provided with a replaceable anti-slip liner, which is a polymer composite material product.

Images