A steel coil opening straightening device

Abstract

The application provides a steel coil head straightening device, which comprises a rotating support, a first straightening roller and a second straightening roller arranged on opposite side walls of the rotating support in a first direction, a guide fixed to the opposite side walls of the rotating support and distributed in the first direction, the guide being used for guiding the steel coil head into a straightening gap between the first straightening roller and the second straightening roller, a fixed support arranged outside the rotating support, the fixed support being provided with a first guide mechanism and a second guide mechanism, the first guide mechanism being used for adjusting the position of the rotating support in the first direction, and the second guide mechanism being used for adjusting a straightening space under the drive of an external force, and a rotating drive device with a fixed end fixed to the fixed support and a driving end fixed to the rotating support, the rotating drive device being used for driving the rotating support to rotate. The application can realize the functions of steel coil head and rough straightening integration, simplify the device structure, improve the operation efficiency, save the production cost, and prolong the service life of the roller system.

Description

Technical Field

[0001] This application relates to the field of steel coil processing technology, and more specifically, to a steel coil beginning straightening device. Background Technology

[0002] The coil unwinding and rough straightening processes are key steps in the production of cold-rolled or hot-rolled steel sheets. They primarily process the initial portion of the coil, preparing it for subsequent processing. Coil unwinding involves unfolding the starting end of the coil from its coiled state and guiding it onto the production line, providing continuous strip material for subsequent straightening, cutting, or rolling. The rough straightening process performs preliminary straightening on the coil head, eliminating coiling stress and large-radius bends, ensuring the strip smoothly enters the subsequent fine straightening or rolling processes.

[0003] Currently, the coil straightening and rough straightening processes in the market are usually completed by two separate machines. This not only results in low efficiency and high cost, but also causes the straightening rollers to become concave due to localized concentrated wear. This can easily lead to edge waviness when producing wide strip steel, requiring frequent replacement of the roller system, which further reduces efficiency and increases production costs. Utility Model Content

[0004] This application provides a steel coil start straightening device that integrates steel coil start and coarse straightening, simplifies the device structure, improves operating efficiency, saves production costs, and extends the service life of the roller system.

[0005] This application provides a steel coil beginning straightening device, comprising:

[0006] A rotating support; a first straightening roller and a second straightening roller, disposed along a first direction on two opposite sidewalls of the rotating support;

[0007] The guide is fixed to two opposite side walls of the rotating bracket and is distributed along a first direction. The guide is used to guide the beginning of the steel coil into the straightening gap between the first straightening roller and the second straightening roller.

[0008] A fixed bracket is disposed on the outside of the rotating bracket. The fixed bracket is provided with a first guide mechanism and a second guide mechanism. The first guide mechanism is disposed inside the fixed bracket and is used to adjust the position of the rotating bracket along a first direction. The second guide mechanism is disposed on the outer wall of the fixed bracket along a second direction and is used to drive the fixed bracket to move along the second direction under external force to adjust the straightening space. The second direction intersects with the first direction.

[0009] A rotary drive device, wherein the fixed end of the rotary drive device is fixedly connected to the fixed bracket and the driving end is fixedly connected to the rotary bracket, and the rotary drive device is used to drive the rotary bracket to rotate.

[0010] In some embodiments, the fixing bracket includes two outer side walls and a bottom wall, the two outer side walls extending along a third direction, the bottom wall connecting the two outer side walls along a first direction, and the second guide mechanism being fixed to the bottom wall.

[0011] In some embodiments, the two outer sidewalls are provided with mounting cavities, the mounting cavities are provided with bearings, the inner rings of the bearings are provided with guide grooves, the outer wall of the rotating bracket is fixed to a rotating shaft, the rotating shaft is provided with a keyway, the keyway is provided with a key, and the rotating shaft is connected to the bearing through the key.

[0012] In some embodiments, the second guiding mechanism includes a guide rail and a slider, the slider being fixedly connected to the fixed bracket, and the guide rail being slidably connected to the slider.

[0013] In some embodiments, the second guiding mechanism includes a guide wheel and a slide rail, the guide wheel being fixedly connected to the bottom of the fixed bracket, the slide rail being fixedly connected to the external platform, and the guide wheel being slidably connected to the slide rail.

[0014] In some embodiments, there are multiple second guide mechanisms, each of which is disposed at the bottom of the fixed bracket along a second direction, and adjacent second guide mechanisms are disposed at equal intervals.

[0015] In some embodiments, a first linear drive device is further included, which is connected to the fixed bracket. The first linear drive device and the rotary drive device are coaxially distributed. The two outer side walls of the fixed bracket are respectively provided with mounting portions. The two bearings are respectively disposed in the two mounting portions and respectively sleeved on the two rotary shafts.

[0016] In some embodiments, the first linear drive device includes a linear motor, a hydraulic cylinder, or a pneumatic cylinder.

[0017] In some embodiments, the rotary drive device includes a hydraulic motor, a pneumatic motor, a stepper motor, or a servo motor.

[0018] In this embodiment, the fixed bracket is guided to move back and forth via a second guide mechanism, thereby adjusting the distance to the beginning of the steel coil. This facilitates the adjustment of the distance to the steel coil, allowing the guide to contact the steel coil and adjust the straightening space. The rotary drive device rotates to perform coarse straightening on the beginning of the steel coil. The first guide mechanism can guide the lateral movement of the roller system to adjust the contact position between the steel strip and the roller body. By periodically moving the first and second straightening rollers laterally, uniform wear of the straightening roller system is ensured, avoiding concentrated wear in the middle of the straightening rollers that could result in a concave roller shape and cause edge waviness and other problems. This improves the straightening uniformity of the beginning of the steel coil and extends the service life of the straightening rollers. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a steel coil beginning straightening device provided in some embodiments of this application;

[0021] Figure 2 A schematic diagram of the steel coil beginning straightening device provided in some embodiments of this application from another angle;

[0022] Figure 3 A schematic diagram illustrating the lead-out process of the steel coil head straightening device provided in some embodiments of this application;

[0023] Figure 4 A schematic diagram illustrating the lead-in process of the steel coil starter straightening device provided in some embodiments of this application;

[0024] Figure 5 A schematic diagram showing the backward movement of the first and second straightening rollers in a steel coil starting straightening device provided in some embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the coarse straightening process of a steel coil beginning straightening device provided in some embodiments of this application.

[0026] The attached figures are labeled as follows:

[0027] 1-Rotating support; 2-First straightening roller; 3-Second straightening roller; 4-Guide; 5-Fixed support; 6-Rotating drive device; 7-Second guiding mechanism; 8-Rotating shaft; 9-Steel coil;

[0028] 71-Guide rail; 72-Slider;

[0029] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In this application, "multiple" means two or more (including two).

[0032] Please refer to Figure 1 and Figure 2 This application provides a steel coil straightening device, mainly comprising a rotating support 1, a first straightening roller 2 and a second straightening roller 3, a guide 4, a fixed support 5, and a rotating drive device 6. The first straightening roller 2 and the second straightening roller 3 cooperate to form a straightening space. The first straightening roller 2 and the second straightening roller 3 can be solid straightening rollers, hollow straightening rollers, or segmented straightening rollers, and can also be smooth straightening rollers, coated straightening rollers, patterned straightening rollers, etc.

[0033] The first straightening roller 2 and the second straightening roller 3 are disposed on opposite sidewalls of the rotating support 1 along the first direction X. The two straightening rollers are distributed in parallel and are welded and fixed to the two sidewalls in contact with the rotating support 1, or fixed with fasteners. When not subjected to rotational force, the two straightening rollers can be distributed vertically, horizontally, or obliquely horizontally to form a straightening gap.

[0034] The guide 4 has a guide tip and a guide slope. The two ends of the guide 4 along the first direction are respectively fixed to the two side walls of the rotating bracket 1. The guide tip and the guide slope can guide the beginning of the steel coil 9 into the straightening gap.

[0035] The fixed bracket 5 is located on the outside of the rotating bracket 1. The fixed bracket 5 is equipped with a first guide mechanism and a second guide mechanism 7, which are used to adjust the position of the rotating bracket 1 and the straightening space. The fixed end of the rotating drive device 6 is fixedly connected to the fixed bracket 5, and its driving end is fixedly connected to the rotating bracket 1. The rotating drive device 6 is used to drive the rotating bracket 1 to rotate to adapt to the straightening requirements of different angles.

[0036] The first guide mechanism can be disposed inside the fixed bracket 5. The first guide mechanism is connected to the rotating bracket 1 and can guide the rotating bracket 1 to move along the first direction to adjust the position of the rotating bracket 1 along the first direction. The second guide mechanism 7 is disposed on the outer wall of the fixed bracket 5 along the second direction. It can be fixed to the outer wall or bottom of the fixed bracket 5. Under the drive of external force, the second guide mechanism 7 can drive the fixed bracket 5 to move along the second direction to adjust the straightening space.

[0037] It should be noted that the first direction, second direction, and third direction in this application are intersecting each other. Optionally, the first direction X can be... Figure 1 In the horizontal direction, correspondingly, the second direction Y can be... Figure 1 In the forward and backward directions, the third direction Z can be... Figure 1 The vertical direction in the middle.

[0038] The workflow of this application is as follows: The position of the rotating bracket 1 is adjusted by forward and backward translation, bringing the guide 4 closer to the steel coil 9 so that the lead is drawn out. Figure 3 As shown, thereafter, the rotation of the steel ring will draw the belt head to the straightening gap, as... Figure 4 As shown. The position of the rotating support 1 is adjusted by translation to move the first and second straightening rollers backward, thereby adjusting the straightening space, as shown. Figure 5 As shown. The rotary drive device 6 drives the rotary support 1 to rotate, performing coarse straightening of the strip steel, as... Figure 6 As shown, this ensures the straightening effect. After straightening is completed, the rotating bracket 1 is reset, ready for the processing of the next coil 9.

[0039] In this embodiment, by translating along the second guide mechanism 7 and rotating the rotating bracket 1 under the action of the rotating drive device 6, the guide 4 is brought close to the steel coil 9 at a suitable height and angle, leading the strip head to the straightening space between the first straightening roller 2 and the second straightening roller 3. The steel coil 9 begins to straighten by retracting along the second guide mechanism 7 and being driven to rotate by the rotating drive device 6, thus performing reverse bending coarse straightening on the bent strip, which facilitates threading onto subsequent equipment. After threading is completed, the device roller system rotates to the left, which can release the coarse straightening work state that is no longer needed, or it can continue to maintain or increase the right rotation angle, which, together with the subsequent fine straightening equipment, plays an auxiliary role in eliminating the "turtle back" shape of the strip.

[0040] In this application, the first guiding mechanism can make the straightening roller system move laterally at regular intervals, so that the roller body of the straightening roller system will be worn more evenly, avoiding straightening waviness caused by local concentrated wear, and extending the replacement cycle of the roller system.

[0041] This application integrates the strip opening and straightening functions into one unit. A forward and backward translation device and a rotary drive device 6 are used for the overall movement and rotation of the device. The strip head of the steel coil 9 can be smoothly introduced into the straightening rollers, which guide and straighten the strip head. After straightening, the rollers rotate and exit for subsequent strip threading operations. This device, by precisely guiding and straightening the strip head of the steel coil 9, avoids the waste of multiple threading operations, significantly improves operational efficiency, reduces equipment maintenance costs and roller replacement frequency, ensures good strip shape, improves production accuracy and efficiency, and reduces production costs.

[0042] In one specific embodiment, the rotating support 1 includes two outer walls that are distributed opposite to each other and a connecting wall that connects the two outer walls. The first straightening roller 2 and the second straightening roller 3 can be rotatably connected to the two outer walls. When the straightening roller rotates, steel is fed.

[0043] In one specific embodiment, the fixed bracket 5 includes two outer side walls and a bottom wall. The two outer side walls extend along a third direction Z, and the bottom wall connects the two outer side walls along a first direction X. A rotary drive device 6 is fixedly connected to one of the outer side walls, and a second guide mechanism 7 is fixedly connected to the bottom wall to increase the connection strength between the two outer side walls. The second guide mechanism 7 is fixedly installed at the bottom of the bottom wall. The fixed bracket 5 serves to fix the rotary bracket 1, ensuring that the rotary bracket 1 moves as a whole along the second direction to adjust the straightening space.

[0044] Regarding the specific structure of the second guiding mechanism 7, in one embodiment, the second guiding mechanism 7 includes a guide rail 71 and a slider 72. The slider 72 is fixedly connected to the fixed bracket 5, and the guide rail 71 is fixedly installed on the mounting platform of the steel coil 9 head straightening device, with the guide rail 71 and slider 72 slidably connected. The fixed bracket 5 can be connected to a second linear drive device, which drives the fixed bracket 5 and slider 72 to move along the guide rail 71, thereby adjusting the straightening space. In another embodiment, the second guiding mechanism 7 includes a guide wheel and a slide rail. The guide wheel is fixedly connected to the bottom of the fixed bracket 5, and the slide rail is fixedly connected to the external platform, with the guide wheel slidably connected to the slide rail. Driven by the second linear drive device, the guide wheel slides along the slide rail, thereby adjusting the straightening space.

[0045] Multiple second guide mechanisms 7 can be configured, each second guide mechanism 7 is arranged at the bottom of the fixed bracket 5 along the second direction, and adjacent second guide mechanisms 7 are arranged at equal intervals, thereby improving the stability of the movement of the fixed bracket 5.

[0046] Furthermore, a first linear drive device can be provided, which can be connected to the fixed bracket 5. The first linear drive device and the rotary drive device 6 are coaxially distributed. The two outer side walls of the fixed bracket 5 are respectively provided with mounting parts, which can be mounting cavities. Two bearings are respectively disposed inside the two mounting parts. The driving ends of the first linear drive device and the driving ends of the rotary drive device 6 are coaxially connected to the rotating shafts 8. The middle parts of the two rotating shafts 8 pass through the fixed bracket 5, and the other ends of the rotating shafts 8 are fixedly connected to the outer wall of the rotating bracket. Two bearings are respectively sleeved on the two rotating shafts 8, and the two rotating shafts 8 are coaxially distributed. In addition, keyways are opened on the inner ring of the bearing and the shaft diameter of the rotating shaft 8. Keys are provided in the keyways, and the inner ring of the bearing is connected to the rotating shaft 8 by the key. The first linear drive device is connected to the rotating bracket 1 through the rotating shaft 8. The bearing provides the rotation of the rotating shaft 8 and the linear movement along the first direction X. Under the drive of the first linear drive device, the rotating bracket 1 can be driven to move laterally along the first direction, thereby adjusting the contact position between the roller body and the steel coil 9 and ensuring uniform wear.

[0047] In the above embodiments, the linear drive device in this application may include, but is not limited to, a linear motor, a hydraulic cylinder, or a pneumatic cylinder, and the rotary drive device 6 may include, but is not limited to, a hydraulic motor, a pneumatic motor, a stepper motor, or a servo motor.

[0048] The steel coil 9 starting straightening device provided in this application includes a rotary drive device 6 that can precisely guide the strip head into the steel coil 9. The straightening roller rotates to drive the straightening roller to straighten the strip. A lateral movement slide and drive cylinder in the roller system allow the straightening roller to move laterally, extending its service life. A front-to-back translation device and the rotary drive device 6 are used for the overall movement and rotation of the device, allowing the strip head of the steel coil 9 to be smoothly introduced into the straightening roller and rotated out after straightening, facilitating subsequent threading operations. This device, by precisely guiding and straightening the strip head of the steel coil 9, avoids the waste of multiple threading operations, significantly improves operational efficiency, reduces equipment maintenance costs and roller replacement frequency, and ensures a good strip shape that meets the production line's requirements.

[0049] The foregoing has provided a detailed description of the steel coil straightening device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A steel coil beginning straightening device, characterized in that, include: Rotating bracket (1); The first straightening roller (2) and the second straightening roller (3) are disposed on two opposite side walls of the rotating support (1) along the first direction; The guide (4) is fixed to two opposite side walls of the rotating bracket (1) and the guide (4) is distributed along the first direction. The guide (4) is used to guide the beginning of the steel coil into the straightening gap between the first straightening roller (2) and the second straightening roller (3). A fixed bracket (5) is disposed on the outside of the rotating bracket (1). The fixed bracket (5) is provided with a first guide mechanism and a second guide mechanism (7). The first guide mechanism is disposed inside the fixed bracket (5) and is used to adjust the position of the rotating bracket (1) along a first direction. The second guide mechanism (7) is disposed on the outer wall of the fixed bracket (5) along a second direction and is used to drive the fixed bracket (5) to move along the second direction under external force to adjust the straightening space. The second direction intersects with the first direction. A rotary drive device (6) is provided, with its fixed end fixed to the fixed bracket (5) and its driving end fixed to the rotary bracket (1). The rotary drive device (6) is used to drive the rotary bracket (1) to rotate.

2. The steel coil beginning straightening device according to claim 1, characterized in that, The fixed bracket (5) includes two outer side walls and a bottom wall. The two outer side walls extend along a third direction. The bottom wall connects the two outer side walls along the first direction. The second guide mechanism (7) is fixed to the bottom wall. The first direction, the second direction and the third direction intersect each other.

3. The steel coil beginning straightening device according to claim 2, characterized in that, The two outer side walls are provided with mounting cavities, the mounting cavities are provided with bearings, the inner ring of the bearings is provided with guide grooves, the outer wall of the rotating bracket (1) is fixed to a rotating shaft, the rotating shaft is provided with a keyway, the keyway is provided with a key, and the rotating shaft is connected to the bearing through the key.

4. The steel coil beginning straightening device according to claim 3, characterized in that, The second guiding mechanism (7) includes a guide rail (71) and a slider (72), the slider (72) being fixedly connected to the fixed bracket (5), and the guide rail (71) being slidably connected to the slider (72).

5. The steel coil beginning straightening device according to any one of claims 2 to 4, characterized in that, The second guiding mechanism (7) includes a guide wheel and a slide rail. The guide wheel is fixedly connected to the bottom of the fixed bracket (5), and the slide rail is fixedly connected to the external platform. The guide wheel is slidably connected to the slide rail.

6. The steel coil beginning straightening device according to claim 5, characterized in that, There are multiple second guide mechanisms (7), each second guide mechanism (7) is disposed at the bottom of the fixed bracket (5) along the second direction, and two adjacent second guide mechanisms (7) are disposed at equal intervals.

7. The steel coil beginning straightening device according to claim 3, characterized in that, It also includes a first linear drive device, which is connected to the fixed bracket (5). The first linear drive device and the rotary drive device (6) are coaxially distributed. The two outer side walls of the fixed bracket (5) are respectively provided with mounting parts. The two bearings are respectively provided in the two mounting parts and respectively sleeved on the two rotary shafts (8).

8. The steel coil beginning straightening device according to claim 7, characterized in that, The first linear drive device includes a linear motor, a hydraulic cylinder, or a pneumatic cylinder.

9. The steel coil beginning straightening device according to claim 1, characterized in that, The rotary drive device (6) includes a hydraulic motor, a pneumatic motor, a stepper motor, or a servo motor.

Images