Steel coil cutting and winding device

Abstract

The utility model relates to the technical field of cutting and rolling of steel belts, in particular to a steel coil cutting and rolling device which comprises a bottom plate, a stretching and bending straightener, a steel belt rolling mechanism (the steel belt rolling mechanism comprises a rolling table, a boss, an expansion and contraction frame and an overturning unit) and a supporting frame. The support frame is detachably provided with a shearing mechanism (the shearing mechanism comprises a sliding rail, a bidirectional threaded rod, an upper cutter, a lower cutter, a servo motor and an extrusion unit) and is also provided with a clamping mechanism; all the components are matched to complete straightening and rolling of the steel belt, the shearing mechanism shears the tail end of the steel belt and extrudes and locks the steel belt, and the purpose that shearing is achieved after the steel belt is rolled is achieved.

Description

Technical Field

[0001] This utility model relates to the field of steel strip cutting and coiling technology, specifically to a steel coil cutting and coiling device. Background Technology

[0002] In the field of steel strip processing, the conventional process usually includes rolling (cold rolling or hot rolling), tension straightening (correcting the flatness of the steel strip using a tension straightener or a stretch bending straightener), and other general steps. After the above steps, the steel strip needs to be coiled by a coiler to form a regular steel coil to meet the needs of storage, transportation, and subsequent deep processing. Existing technologies related to steel strip coilers are disclosed in the Chinese patent database (for example, a steel strip coiler disclosed in publication number CN222757580U, and another steel strip coiler disclosed in publication number CN207293667U).

[0003] The problem with the above-mentioned prior art (CN222757580U, CN207293667U) is that when a single coil of steel strip is wound to a preset length, the end of the coiled steel strip needs to be cut off. However, the above-mentioned prior art does not disclose how to achieve the cutting after the steel strip is coiled. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a steel coil cutting and winding device that solves the problem of how to cut the steel strip after it is coiled.

[0005] This utility model discloses a steel coil cutting and winding device, including a base plate, a tension bending straightener installed at one end of the base plate for outputting straightened uncoiled steel strip to a steel strip winding mechanism; a steel strip winding mechanism installed at the other end of the base plate for winding the straightened uncoiled steel strip into a coiled steel strip; a feeding port is provided in the area of ​​the base plate directly below the steel strip winding mechanism; a support frame is vertically fixed to the surface of the base plate and located beside the steel strip transmission path between the tension bending straightener and the steel strip winding mechanism, serving as a mounting carrier for the shearing mechanism; the shearing mechanism is detachably fixed to the upper part of the support frame for shearing the tail end of the steel strip when the steel strip winding mechanism completes a single turn of winding, and for squeezing and locking the tail end of the uncoiled steel strip after separation.

[0006] Specifically, the shearing mechanism includes a slide rail, which is fixedly installed on one side of the top of the support frame. The slide rail has a groove inside for the cutter to slide. A bidirectional threaded rod is rotatably connected inside the groove, and its outer circumference is machined with two sections of threads in opposite directions. The handles of the upper and lower cutters are slidably connected in the grooves on the upper and lower sides of the slide rail, respectively. The handle of the upper cutter is threadedly engaged with the upper threaded section of the bidirectional threaded rod, and the handle of the lower cutter is threadedly engaged with the lower threaded section of the bidirectional threaded rod. A servo motor is fixedly connected to the outer wall of the slide rail, and its output shaft is driven by one end of the bidirectional threaded rod to provide rotational power to drive the bidirectional threaded rod to rotate forward or backward. The gap between the upper and lower cutters allows the end of the coiled steel strip to pass through.

[0007] The optimized shearing mechanism also includes an extrusion unit, which includes a boom. One end of the boom is fixed to the top of the press table, and the extended end of the boom is rigidly connected to the top of the upper cutter. This boom is used to transmit the up-and-down cutting action of the upper cutter to the press table to drive the press table to rise and fall synchronously. At least one column is arranged parallel to the width of the steel strip. The bottom end face of the column is fixed to the support frame. The press table is opposite to the column, and a gap adapted to the thickness of the steel strip is provided between them.

[0008] Specifically, the steel strip winding mechanism includes a winding table, a rotary motor integrated at the center of the winding table, and the output shaft of the rotary motor fixed to the bottom of the boss for driving the boss to rotate. There are at least three mounting positions on the periphery of the boss, each mounting position connected to the end of an electric push rod cylinder, and the telescopic rod end of the electric push rod connected to an expansion frame for radially driving the expansion frame. The expansion frames are arranged in a ring, and the outer wall forms a steel strip winding support surface. The flipping unit is connected to the hinge shaft at the bottom of the winding table for providing power to flip the winding table.

[0009] More specifically, the flipping unit includes a base, which is fixedly connected to the bottom plate. Hinges are formed on both sides of the top of the base, and the hinge shaft at the bottom of the winding table is connected to the two hingees. The flipping motor is fixedly connected to the base, and the output shaft of the flipping motor is concentrically fixedly connected to the hinge shaft to provide power for the flipping of the winding table around the hinge shaft.

[0010] The optimized steel coil cutting and winding device also includes a clamping mechanism, which includes an electric telescopic rod. The cylinder of the electric telescopic rod is mounted on the outer side of the expansion and contraction frame. The telescopic rod end of the electric telescopic rod is fixedly connected to one side surface of the clamping plate. The electric telescopic rod is used to drive the clamping plate to move, so that a variable gap is formed between the other side surface of the clamping plate and the corresponding outer side surface of the adjacent expansion and contraction frame.

[0011] The beneficial effects of this utility model are as follows:

[0012] This application solves the problem of how to cut steel strip after it is coiled. By setting up a shearing mechanism consisting of a bidirectional threaded rod and an upper and lower cutter driven by a servo motor, the tail end of the steel strip can be accurately cut when the steel strip winding mechanism completes a single turn of winding. In the steel strip winding mechanism, the expansion and contraction frame controlled by the electric push rod facilitates the release of the steel strip after winding and coiling. With the help of the flipping unit, the coiled steel strip can fall smoothly into the feeding port and be received by the collection trolley, realizing convenient collection and transportation of the coiled steel strip. In the initial stage of winding, the clamping mechanism clamps the tail end of the steel strip with clamping plates to prevent it from swinging, deviating, wrinkling, or falling off the support surface. The extrusion unit moves synchronously with the upper cutter, which can clamp the starting end of the next coil of steel strip while cutting the coiled steel strip, solving the problem of "finding the head" for the next coil winding. In addition, the stretching and bending straightening machine first straightens the original steel strip to ensure the quality of the subsequent coiled steel strip, thus improving the efficiency and stability of the steel strip winding operation as a whole. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the steel coil cutting and winding device of this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the shearing mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the installation structure of the shearing mechanism of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the steel strip winding mechanism of this utility model.

[0017] Figure 5 This is a schematic diagram of the clamping mechanism installation structure of this utility model.

[0018] Figure 6 This is a schematic diagram of the extrusion unit structure of this utility model.

[0019] In the diagram, 1. Base plate; 2. Stretching and bending straightening machine; 3. Support frame; 4. Upper cutter; 5. Lower cutter; 6. Slide rail; 7. Bidirectional threaded rod; 8. Servo motor; 9. Winding table; 10. Rotary motor; 11. Boss; 12. Electric push rod; 13. Expansion frame; 14. Tilting unit; 15. Base; 16. Electric telescopic rod; 17. Clamping plate; 18. Boom; 19. Pressing table; 20. Column; 21. Discharge port; 22. Steel strip. Detailed Implementation

[0020] To clearly understand the technical solution of this application, the following will describe in detail a steel coil cutting and winding device provided by this application in conjunction with specific embodiments and accompanying drawings.

[0021] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two.

[0022] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "one embodiment," "some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0023] Example 1: This example provides a steel coil cutting and winding device, referencing... Figure 1The diagram shows a three-dimensional structural schematic of a steel coil cutting and winding device. As can be seen, the device includes a base plate 1, a horizontally arranged rigid base to which all functional components are directly or indirectly fixed, forming the installation reference surface of the device. A 9Cr2M tension bending straightener 2 is fixedly installed at one end of the base plate 1 (i.e., the upstream side of the support frame 3) by bolts, welding, or other methods. The output end of the tension bending straightener 2 extends horizontally out of an uncoiled steel strip 22, used to transport the straightened uncoiled steel strip 22 to the subsequent winding mechanism. The support frame 3 is vertically fixed to the surface of the base plate 1 by welding, bolting, or other methods, and is located beside the transmission path of the uncoiled steel strip 22 between the tension bending straightener 2 and the steel strip winding mechanism, forming the mounting carrier for the shearing mechanism. The shearing mechanism is detachably fixed to the upper part of the support frame 3 (e.g., by bolt fastening). The shearing blade of the shearing mechanism is aligned with the transmission path of the steel strip 22 and is used to shear the tail end of the steel strip 22 when the steel strip winding mechanism completes a single turn of winding. The steel strip winding mechanism is installed at the other end of the base plate 1 (i.e., the downstream side of the support frame 3) and is used to wind the straightened, uncoiled steel strip 22 to finally form a coiled steel strip 22. The discharge port 21 is an opening in the area of ​​the base plate 1 directly below the steel strip winding mechanism. The spatial position of the discharge port 21 is adapted to the falling trajectory of the coiled steel strip 22. In use, a collection trolley can be placed below the discharge port 21. The collection trolley collects and transports the coiled steel strip 22 by receiving the falling coiled steel strip 22.

[0024] For details, please refer to Figure 2-3 ,in, Figure 2 The diagram shown is a three-dimensional structural schematic of the shearing mechanism, while Figure 3The diagram shows the installation structure of the shearing mechanism. As can be seen from the two diagrams above, the shearing mechanism includes a slide rail 6, which is fixedly installed on the top side of the support frame 3 by bolts or welding, providing a guide track for the movement of the upper cutter 4 and the lower cutter 5. A groove is formed inside the slide rail 6 for the cutters to slide in. A bidirectional threaded rod 7 is rotatably connected to the groove of the slide rail 6 via bearings. The axis of the bidirectional threaded rod 7 is parallel to the extension direction of the slide rail 6 and can rotate around its own axis. The handles of the upper cutter 4 and the lower cutter 5 are respectively embedded in the grooves on the upper and lower sides of the slide rail 6, forming a sliding fit. The outer circumference of the bidirectional threaded rod 7 is machined with two sections of threads with opposite directions; the handle of the upper cutter 4 is threadedly engaged with the upper threaded section of the bidirectional threaded rod 7, and the handle of the lower cutter 5 is threadedly engaged with the lower threaded section of the bidirectional threaded rod 7. One end of the bidirectional threaded rod 7 is connected to the output shaft of the servo motor 8 via a coupling (the servo motor 8 is fixedly connected to the outer wall of the slide rail 6). The servo motor 8 provides rotational power, driving the bidirectional threaded rod 7 to rotate forward or backward. The end of the coiled steel strip 22 (the part to be cut) passes through the gap between the upper cutter 4 and the lower cutter 5, which provides working space for the cutting action. In use, when the servo motor 8 drives the bidirectional threaded rod 7 to rotate, because the upper and lower threads of the bidirectional threaded rod 7 rotate in opposite directions, and the cutter handle is constrained by the slide rail 6 to only move in a straight line, the upper cutter 4 and the lower cutter 5 will synchronously move closer to each other (cutting the steel strip 22) or further away from each other under the helical transmission of the threads, ultimately completing the cutting of the end of the coiled steel strip 22.

[0025] For details, please refer to Figure 4The diagram shows a three-dimensional structural schematic of a steel strip winding mechanism. As can be seen, the mechanism includes a winding table 9, and a rotary motor 10 integrated into the central area of ​​the winding table 9 via a fixed installation method (such as bolt fastening, flange positioning, etc.). The output shaft of the rotary motor 10 extends axially along the winding table 9 and is connected to the bottom center of the boss 11 via a rigid connection structure (such as key connection, spline fit, or flange connection), driving the boss 11 to rotate synchronously with the rotary motor 10. Four mounting positions are evenly distributed along the circumferential surface of the boss 11. Each mounting position is mechanically connected (such as bolts, welding, etc.) to the cylinder end of an electric push rod 12. The telescopic rod end of the electric push rod 12 extends radially outward along the boss 11 and is connected to the expansion frame 13 via a mechanical connection method (such as bolts, tenons, etc.), realizing the radial drive of the expansion frame 13 by the telescopic action of the electric push rod 12. Four expansion and contraction frames 13 are arranged in a ring around the boss 11, and the outer walls of the four expansion and contraction frames 13 together form the support surface for the winding of the steel strip 22. The top of the flipping unit 14 is connected to the hinge shaft at the bottom of the winding table 9, forming the flipping support system of the winding table 9; the flipping unit 14 provides power so that the winding table 9 can flip around the hinge shaft, thereby realizing the dropping action of the coiled steel coil towards the lower feed port. In use, when the electric push rod 12 extends synchronously, the expansion and contraction frames 13 expand outward, increasing the support diameter to tightly wind the steel strip 22; when the electric push rod 12 retracts synchronously, the expansion and contraction frames 13 retract inward, reducing the support diameter to release the coiled steel coil, and cooperate with the flipping unit 14 to complete the unloading.

[0026] For more specific details, please refer to [link / reference]. Figure 4 The flipping unit 14 includes a base 15, which is fixedly connected to the base plate 1. Hinges are formed on both sides of the top of the base 15, and the hinge shaft at the bottom of the winding table 9 is rotated onto the two hingees. A flipping motor (not shown in the figure) is fixedly connected to the base 15, and the output shaft of the flipping motor is concentrically fixedly connected to the hinge shaft.

[0027] During the winding operation of the steel strip 22, when the unwound steel strip 22 begins to wind around the outer wall of the expansion and contraction frame 13, the tail end of the steel strip 22 is prone to swinging, deflection, wrinkling, stacking, or even detachment from the support surface of the expansion and contraction frame 13 because it has not formed a stable winding tension and its own rigidity is insufficient. Therefore, this application further designs a clamping mechanism, the specific structure of which is as follows.

[0028] refer to Figure 5The diagram shows the installation structure of the clamping mechanism. As can be seen, the clamping mechanism includes an electric telescopic rod 16. The cylinder of the electric telescopic rod 16 is mechanically fixed to the outer side of one of the expansion frames 13 via a method such as bolt fastening, welding, or tenon joint. The end of the telescopic rod 16 is fixedly connected to one side surface of the clamping plate 17 via a rigid connection structure (such as bolt connection, integral molding, or keyway fit). When the electric telescopic rod 16 drives the clamping plate 17 to move, a variable gap is formed between the other side surface of the clamping plate 17 and the corresponding outer side surface of the adjacent expansion frame 13. The width of this gap is adjusted by the extension / retraction amount of the electric telescopic rod 16.

[0029] In the steel strip 22 winding production line, after the coiled steel strip 22 and the uncoiled steel strip 22 are cut and separated, the end of the uncoiled steel strip 22 (i.e., the starting end of the next winding) is prone to swinging and shifting due to the loss of winding tension support and insufficient rigidity, resulting in difficulty in finding the head when starting the next winding. To address the above problem, refer to... Figure 6 Based on the shearing mechanism, an extrusion unit is further designed, which is connected to the upper cutter 4. Utilizing the synchronous downward cutting motion of the upper cutter 4, the extrusion unit drives the extrusion unit to extrude and lock the tail end of the separated, uncoiled steel strip 22 (i.e., the starting end of the next roll). This application achieves the dual functions of "cutting and separating the tail end of the coiled steel strip 22" and "fixing the end of the sheared and separated portion of the steel strip 22" in a single operation of the upper cutter 4 and the extrusion unit; the specific structure of the extrusion unit is as follows.

[0030] Continue to refer to Figure 6 The extrusion unit includes a boom 18, which is a rigid transmission component. One end of the boom 18 is fixedly connected to the top surface of the press table 19 by bolt fastening, welding, or integral molding. The extended end of the boom 18 is rigidly connected (such as by bolts, welding, etc.) to the top of the upper cutter 4, forming a synchronous motion chain of the upper cutter 4, the boom 18, and the press table 19. The up and down cutting action of the upper cutter 4 is transmitted to the press table 19 through the boom 18, driving the press table 19 to rise and fall synchronously. Two columns 20 are arranged parallel to each other along the width of the steel strip 22. The bottom end face of the columns 20 is fixed to the support frame 3 by bolts, welding, or other means. The lower surface of the pressure table 19 is coaxially and directly opposite the upper surface of the two columns 20. A gap is reserved between them to accommodate the thickness of the steel strip 22 (the width of this gap is slightly larger than the thickness of the steel strip 22 to ensure that the steel strip 22 can pass smoothly before cutting and extrusion). The top arc surface of the two columns 20 serves as a dual-function surface: on the one hand, it provides a cutting support point for the upper cutter 4 (when the upper cutter 4 moves downward to cut, the blade of the upper cutter 4 abuts against the steel strip 22 between the two columns 20, and the rigidity of the columns 20 is used to complete the shearing); on the other hand, it provides an extrusion mating surface for the pressure table 19 (when the pressure table 19 moves downward, it clamps the tail end of the separated part of the steel strip 22 together with the two columns 20).

[0031] The general workflow of this utility model is as follows:

[0032] Step 1: The stretching and bending straightening machine 2 is started to straighten the original steel strip 22, output the uncoiled steel strip 22 and convey it to the front of the steel strip winding mechanism.

[0033] Step 2: The electric push rod 12 is activated, driving the four expansion brackets 13 to open radially along the boss 11 to form a winding support surface.

[0034] Step 3: The rotary motor 10 drives the boss 11 and the expansion frame 13 to rotate, and the steel strip 22 is wound around the outer wall of the expansion frame 13. In the initial stage of winding, the electric telescopic rod 16 of the clamping mechanism extends, and the clamping plate 17 clamps the tail end of the steel strip 22 with the adjacent expansion frame 13 to prevent it from swinging or falling off.

[0035] Step 4: When the steel coil reaches the set number of turns, the servo motor 8 drives the bidirectional threaded rod 7 to make the upper cutter 4 and the lower cutter 5 approach synchronously and cut off the end of the coiled steel strip 22. When the upper cutter 4 moves downward, it drives the pressure table 19 to press down synchronously through the boom 18, and cooperates with the two columns 20 below to clamp the starting end of the next coil of steel strip 22.

[0036] Step 5: The electric push rod 12 retracts, the expansion and contraction frame 13 retracts radially, and the coiled steel strip 22 separates from the expansion and contraction frame 13; the flipping unit 14 drives the winding table 9 to flip around the hinge axis, and the coiled steel strip 22 slides into the discharge port 21 and is received by the collection trolley.

[0037] This application solves the problem of how to cut the steel strip after it is coiled into 22 rolls. By setting up a shearing mechanism consisting of an upper cutter 4 and a lower cutter 5 driven by a bidirectional threaded rod 7 and a servo motor 8, the tail end of the steel strip 22 can be precisely cut when the steel strip winding mechanism completes a single turn of winding. In the steel strip winding mechanism, the expansion and contraction frame 13 controlled by the electric push rod 12 facilitates the release of the steel strip 22 after winding and coiling. With the help of the flipping unit 14, the coiled steel strip 22 can fall smoothly into the feeding port 21 and be received by the collection trolley, realizing the convenient collection and transportation of the coiled steel strip 22. In the initial stage of winding, the clamping mechanism clamps the tail end of the steel strip 22 through the clamping plate 17, which can prevent it from swinging, deviating, wrinkling, stacking, or falling off the support surface. The extrusion unit moves synchronously with the upper cutter 4, which can clamp the starting end of the next coil of steel strip 22 while cutting the coiled steel strip 22, solving the problem of "finding the head" in the next coil winding. In addition, the stretching, bending and straightening machine 2 first straightens the original steel strip 22 to ensure the quality of the subsequent coiled steel strip 22, thus improving the efficiency and stability of the steel strip 22 winding operation as a whole.

[0038] It is particularly important to note that, depending on actual needs, the servo motor and bidirectional threaded rod (i.e., the drive source of the shearing mechanism) can also be replaced with a hydraulic cylinder. The hydraulic cylinder pushes the upper or lower cutter to move upward or downward, thereby realizing the shearing action. Both of the above drive methods can achieve effective shearing of the steel strip. The bidirectional threaded rod drive eliminates the lag caused by the compressibility of oil in hydraulic transmission through mechanical rigid transmission. Those skilled in the art can select the appropriate drive scheme according to the actual working conditions.

[0039] Furthermore, the diameter, material (e.g., quenched and tempered 45# steel), and matching drive source (e.g., a servo motor with a power ≥ 0.75kW) of the bidirectional threaded rod are all designed based on the shear strength of the target sheared steel strip (e.g., ordinary carbon steel strip with a thickness ≤ 3mm), which is sufficient to cut the steel strip. As an optimized solution, the servo motor and bidirectional threaded rod can be configured as two sets, with the bidirectional threaded rods located on both sides of the slide rail. The bidirectional threaded rods are assembled with the adjacent sides of the upper and lower cutters, and the bidirectional threaded rods are connected to the corresponding servo motors on the slide rail.

Claims

1. A steel coil cutting and winding device, characterized in that: The system includes a base plate, a tension bending straightener mounted at one end of the base plate for outputting straightened, uncoiled steel strip to the steel strip winding mechanism; a steel strip winding mechanism mounted at the other end of the base plate for winding the straightened, uncoiled steel strip into a coiled steel strip; a feed port is located in the area of ​​the base plate directly below the steel strip winding mechanism; a support frame is vertically fixed to the surface of the base plate and located beside the steel strip transmission path between the tension bending straightener and the steel strip winding mechanism, serving as the mounting carrier for the shearing mechanism; the shearing mechanism is detachably fixed to the upper part of the support frame for shearing the tail end of the steel strip when the steel strip winding mechanism completes a single turn of winding, and for squeezing and locking the tail end of the uncoiled steel strip after separation.

2. The steel coil cutting and winding device according to claim 1, characterized in that: The shearing mechanism includes a slide rail, which is fixedly installed on one side of the top of the support frame. The slide rail has a groove inside for the cutter to slide. A bidirectional threaded rod is rotatably connected inside the groove, and its outer circumference is machined with two sections of threads in opposite directions. The handles of the upper and lower cutters are slidably connected to the grooves on the upper and lower sides of the slide rail, respectively. The handle of the upper cutter is threadedly engaged with the upper threaded section of the bidirectional threaded rod, and the handle of the lower cutter is threadedly engaged with the lower threaded section of the bidirectional threaded rod. A servo motor is fixedly connected to the outer wall of the slide rail, and its output shaft is driven by one end of the bidirectional threaded rod to provide rotational power to drive the bidirectional threaded rod to rotate forward or backward. The gap between the upper and lower cutters allows the end of the coiled steel strip to pass through.

3. The steel coil cutting and winding device according to claim 2, characterized in that: The shearing mechanism also includes an extrusion unit, which includes a boom. One end of the boom is fixed to the top of the press table, and the extended end of the boom is rigidly connected to the top of the upper cutter. The boom is used to transmit the up-and-down cutting action of the upper cutter to the press table to drive the press table to rise and fall synchronously. At least one column is arranged parallel to the width of the steel strip. The bottom end face of the column is fixed to the support frame. The press table is opposite to the column, and a gap adapted to the thickness of the steel strip is provided between them.

4. The steel coil cutting and winding device according to claim 1, characterized in that: The steel strip winding mechanism includes a winding table, a rotary motor integrated at the center of the winding table, and the output shaft of the rotary motor fixed to the bottom of the boss for driving the boss to rotate. There are at least three mounting positions on the periphery of the boss, each mounting position connected to the end of an electric push rod cylinder. The telescopic rod end of the electric push rod is connected to an expansion frame for radially driving the expansion frame. The expansion frames are arranged in a ring, and the outer walls form a steel strip winding support surface. The flipping unit is connected to the hinge shaft at the bottom of the winding table for providing power to flip the winding table.

5. The steel coil cutting and winding device according to claim 4, characterized in that: The flipping unit includes a base, which is fixedly connected to the bottom plate. Hinges are formed on both sides of the top of the base, and the hinge shaft at the bottom of the winding table is rotated onto the two hingees. The flip motor is fixedly connected to the base, and the output shaft of the flip motor is concentrically fixedly connected to the hinge shaft to provide power for the flipping of the winding table around the hinge shaft.

6. The steel coil cutting and winding device according to claim 1, characterized in that: It also includes a clamping mechanism, which includes an electric telescopic rod. The cylinder of the electric telescopic rod is mounted on the outer side of the expansion frame. The telescopic rod end of the electric telescopic rod is fixedly connected to one side surface of the clamping plate. The electric telescopic rod is used to drive the clamping plate to move, so that a variable gap is formed between the other side surface of the clamping plate and the corresponding outer side surface of the adjacent expansion frame.

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