A feeding device and a feeding method for steel coil processing

Abstract

The application relates to a steel coil processing equipment technical field, in particular to a feeding device and a feeding method for steel coil processing, which comprises a main box body provided with a steel beam seat at the lower end and a feeding roller rotatably arranged on one side of the main box body, and the axial direction of the feeding roller is perpendicular to the corresponding side wall of the main box body; wherein the adjacent side wall of the main box body and located on the side wall of the feeding roller is provided with a main support, a swing arm is rotatably arranged on the main support, a pressing roller for pressing the steel coil is rotatably arranged at the tail end of the swing arm, and a driving assembly for driving the swing arm to swing relative to the main support is further arranged on the main support. In the application, the pressing roller at the tail end of the swing arm is always pressed on the top of the steel coil, and the swing arm also swings downward correspondingly with the gradual release of the steel coil, so that the pulling part is controlled to move close to the steel coil through the transmission assembly, so as to avoid the occurrence of the vertical coil phenomenon caused by the too long free end of the steel coil.

Description

Technical Field

[0001] This invention relates to the field of steel coil processing equipment technology, specifically to a feeding device and feeding method for steel coil processing. Background Technology

[0002] Existing steel coil feeding mechanisms typically include a feeding roller and a pressing roller. The feeding roller is used for the installation of the steel coil, while the pressing roller can press firmly on the top of the steel coil and maintain pressure on the outer periphery of the steel coil as the coil diameter changes, thereby enabling the steel coil to be released outward relatively stably and preventing the steel coil from unraveling.

[0003] In actual processing, the free end of the steel coil needs to be led out by the feeding mechanism and overlapped or conveyed to the subsequent processing mechanism so that the subsequent equipment can continuously process the coil. As the first step in the steel coil processing production line, the feeding mechanism needs to continuously supply the coil to the subsequent mechanisms, which can perform operations such as cutting, trimming, and slitting according to processing requirements. Therefore, the conveying status of the free end of the steel coil from the feeding mechanism to the subsequent processing mechanism will have a certain impact on the stability of subsequent continuous processing.

[0004] Specifically, in existing technologies, the release speed of the steel coil and the traction or rewinding speed of the subsequent processing mechanism are often difficult to maintain perfectly synchronized. Therefore, the section of coil material between the steel coil feeding mechanism and the subsequent processing mechanism may be in a somewhat slack state, relying mainly on the coil's own toughness to prevent sagging. As the steel coil continues to be released, the coil diameter gradually decreases, and the exit position of the coil gradually moves away from the subsequent processing mechanism, with a corresponding decrease in exit height. When the length of the coil section between the two is long or the degree of slack is significant, the coil section may sag or even touch the ground, potentially forming scratches on the coil surface and affecting the quality of subsequent processing. In view of this, the present invention proposes a feeding device and method for steel coil processing to effectively solve the above-mentioned drawbacks. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device and feeding method for steel coil processing, in order to solve the problems mentioned in the background art.

[0006] This invention is achieved through the following technical solution: a feeding device for steel coil processing, comprising: The main box body is equipped with a steel beam seat at the lower end; A feeding roller is rotatably mounted on one side of the main housing, and the axial direction of the feeding roller is perpendicular to the corresponding side wall of the main housing. A bearing seat that slides on the steel beam seat is used to support the steel coil; A main support is provided on the main housing and on the adjacent side wall of the side wall where the feeding roller is located. A swing arm is rotatably provided on the main support. A pressure roller for pressing the steel coil is rotatably provided at the end of the swing arm. A drive assembly for driving the swing arm to swing relative to the main support is also provided on the main support. The main support is also provided with a holding part. One side of the holding part is provided with a coiling part distributed in the horizontal direction. The coiling part is a tubular structure with a rectangular cross-section and forms a coiling channel for the free end of the steel coil to pass through. The end of the coiling part near the feeding roller is also provided with a pull-out part. The pull-out part is a tubular structure with a rectangular cross-section and can slide along the length direction of the coiling part to approach or move away from the feeding roller. The holding part is also provided with a transmission component, which is in transmission cooperation with the swing arm and the pull part respectively, so as to drive the pull part to slide relative to the winding part when the swing arm swings; wherein, when the swing arm drives the pressure roller to move closer to the feeding roller, the transmission component drives the pull part to slide towards the feeding roller.

[0007] To enable the swing arm to swing around the main support, one end of the swing arm is provided with a main shaft, which is rotatably connected to the main support, and the swing arm is located directly above the holding part. The end of the winding part facing the feeding roller has an inner groove around its circumference, and one end of the pull-out part is slidably embedded in the inner groove, so the pull-out part can slide along the length direction of the winding part to approach or move away from the feeding roller.

[0008] To enable the swing arm to drive the pull-out part to move, the transmission assembly includes a retaining rod, a transmission gear, and an arc-shaped rack. The retaining rod is located in the gap between the retaining part and the main support. The retaining part has sliding openings distributed along its own length. One end of the retaining rod passes through the sliding openings and is fixedly connected to the pull-out part. The top surface of the retaining rod is also provided with a driven rack. The transmission gear is rotatably mounted on the retaining part and meshes with the driven rack. The arc-shaped rack is fixedly connected to the main shaft and meshes with the transmission gear, so that the rotation of the main shaft drives the retaining rod to slide along the sliding openings through the arc-shaped rack, the transmission gear, and the driven rack.

[0009] To facilitate the insertion of steel coils at the rear end of the pull-out section while also reducing the diameter to constrain the coils, guide plates are rotatably provided on both the upper and lower sides of the outer end of the pull-out section. One end of the rotating shaft of the guide plate passes through the holding section and has a circular piece. The holding section has strip-shaped openings distributed along its own length for the rotating shaft of the guide plate to pass through. Drive rods are movably provided on both the upper and lower sides of the holding rod. The drive rods slide in a vertical direction with the holding rod. The edge of the circular piece has an eccentric protrusion, and the drive rod has a through hole for the eccentric protrusion to pass through. A guide post is also provided on the side of the drive rod facing the holding section. The surface of the holding section has a guide groove along an inclined direction for the guide post to be embedded. When the holding rod moves closer to the feeding roller, the drive rod can slide along the direction of the guide groove and drive the opening angle between the two guide plates to decrease.

[0010] The present invention also proposes a feeding method for steel coil processing, applicable to the above-mentioned feeding device, comprising the following steps: The steel coil to be loaded is conveyed by the support seat, so that the steel coil is mounted on the loading roller; The steel coil is pressed down from top to bottom by the pressure roller at the end of the swing arm to prevent it from unraveling, and then the feeding roller is started to slowly release the steel coil. Workers pass the free end of the steel coil through the coiling section. As the steel coil is continuously released, the free end can extend forward from the coiling section to supply subsequent processing equipment. As the steel coil is gradually released and its diameter decreases, the end of the swing arm presses down continuously. The swing of the swing arm can be controlled by the transmission assembly to move the pull section closer to the steel coil, thereby preventing the steel coil section located between the pull section and the steel coil from drooping downwards.

[0011] Compared with the prior art, the present invention provides a feeding device and feeding method for steel coil processing, which has the following beneficial effects: 1. In this invention, the pressure roller at the end of the swing arm is always pressed against the top of the steel coil, and as the steel coil is gradually released, the swing arm will swing downward accordingly, thereby controlling the pull-out part to move closer to the steel coil through the transmission component, so as to avoid the phenomenon of drooping due to the free end of the steel coil being dragged too long. 2. In this invention, the displacement of the pull-out part does not require a separate power source to drive it. Instead, it automatically moves closer to the steel coil as the coil diameter decreases. Furthermore, the overall structure of the transmission assembly is simple and the transmission is reliable. 3. In this invention, the rear end of the pull-out part also has two guide plates for guiding the steel coil. When the pull-out part is away from the steel coil, the opening of the guide plate is larger to facilitate the entry of the steel coil. When the pull-out part is close to the steel coil, the opening of the guide plate can automatically decrease to constrain the steel coil and further prevent the occurrence of drooping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the steel coil release state structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of the swing arm structure of the present invention; Figure 5 This is a schematic diagram of the retaining rod and driving rod structure of the present invention; Figure 6 This is a cross-sectional view of the winding section structure of the present invention; Figure 7 This is a schematic diagram of the transmission component structure of the present invention; Figure 8 for Figure 4 Enlarged view of point A in the middle.

[0013] In the diagram: 100, steel beam seat; 101, linear module; 200, main housing; 201, feeding roller; 300, bearing seat; 301, receiving seat; 302, lifting drive assembly; 400, main support; 401, drive assembly; 4011, drive cylinder; 4012, connecting rod; 500, swing arm; 501, pressure roller; 502, main shaft; 600, holding part; 601, winding part; 602, pulling part; 603, sliding port; 604, guide plate; 605, strip-shaped port; 606, guide groove; 700, transmission assembly; 701, holding rod; 702, transmission gear; 703, arc rack; 704, driven rack; 705, drive rod; 706, circular piece; 707, eccentric protrusion; 708, guide column. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Currently, the problem of coil sagging during steel coil feeding is not simply caused by the lack of support at the free end of the coil, but is related to changes in coil diameter, change in exit position, and the traction state of subsequent processing mechanisms during the release process. When the coil diameter is large, the distance between the outer periphery of the coil and the subsequent guiding or processing mechanisms is relatively short. Even if the coil section is in a somewhat slack state, it can usually maintain a relatively stable conveying posture due to its own rigidity and toughness.

[0016] However, as the steel coil continues to be released, its diameter gradually decreases, and the coil exit point gradually moves closer to the center of the upper feed roller. This increases the suspension distance between the coil and the subsequent processing mechanism, while simultaneously reducing the exit height. If a fixed-position guide structure is still used, it becomes difficult to adjust its relative distance to the coil as its outer diameter changes, and the coil section is still prone to sagging under its own weight. Furthermore, since the coil is constantly in motion, friction with the ground is inevitable when it droops, potentially leading to damage. Therefore, the steel coil feeding mechanism needs to consider both compressing the coil and preventing it from unraveling, while also ensuring the coil guide position can adapt to the gradual change in coil diameter, thereby improving the guiding stability during continuous coil feeding.

[0017] To address the above problems, the present invention proposes the following technical solution: Example 1: Please refer to Figures 1 to 8 This application proposes a feeding device for steel coil processing, including a main housing 200 with a steel beam seat 100 at its lower end, and a feeding roller 201 rotatably disposed on one side of the main housing 200, with the axial direction of the feeding roller 201 perpendicular to the corresponding side wall of the main housing 200; it also includes a support seat 300 slidably disposed on the steel beam seat 100 for supporting the steel coil. The main housing 200 is trapezoidal in shape, and the feeding roller 201 is an expansion roller with outwardly retractable tiles around its perimeter. The interior of the main housing 200 contains a feeding drive assembly capable of controlling the rotation and diameter change of the feeding roller 201, which serves to fix and release the steel coil. A linear module 101, which can be a hydraulic cylinder, is provided on the steel beam seat 100. The linear module 101 drives the support seat 300 to slide along the length of the steel beam seat 100. A receiving seat 301 is slidably mounted on the top surface of the support base 300 in the vertical direction. A lifting drive assembly 302 is also provided on the support base 300. The lifting drive assembly 302 drives the receiving seat 301 to rise and fall. The top surface of the receiving seat 301 forms an inwardly concave V-shaped bearing surface, which is used to support the steel coil to be loaded. The lifting drive assembly 302 uses a hydraulic cylinder to lift the steel coil, aligning its center with the loading roller 201 for easy loading.

[0018] In this embodiment, during the feeding process, the steel coil is first hoisted onto the receiving seat 301. Then, the height of the receiving seat 301 is controlled by the lifting drive assembly 302 so that the center of the steel coil is aligned with the feeding roller 201. Finally, the linear module 101 drives the receiving seat 301 to move closer to the main housing 200 so that the steel coil is completely wrapped around the outside of the feeding roller 201. At the same time, the feeding drive assembly controls the feeding roller 201 to expand and fit tightly against the inner ring of the steel coil to fix the steel coil.

[0019] In some embodiments of this application, a main support 400 is provided on the main housing 200 and on the adjacent side wall of the side wall where the feeding roller 201 is located. A swing arm 500 is rotatably provided on the main support 400. A pressure roller 501 for pressing the steel coil is rotatably provided at the end of the swing arm 500. A drive assembly 401 for driving the swing arm 500 to swing relative to the main support 400 is also provided on the main support 400. A main shaft 502 is provided at one end of the swing arm 500. The main shaft 502 is rotatably connected to the main support 400, and the swing arm 500 is located directly above the holding part 600. The drive assembly 401 includes a drive cylinder 4011 and a connecting rod 4012. The cylinder body of the drive cylinder 4011 is hinged to the side wall of the main housing 200. The movable end of the drive cylinder 4011 is hinged to one end of the connecting rod 4012. The other end of the connecting rod 4012 is fixedly connected to the main shaft 502. The main support 400 is fixed to the side wall of the main housing 200 by bolts, while one end of the connecting rod 4012 is welded to the main shaft 502. The main shaft 502 and the main support 400 are rotated together by bearings. When the drive cylinder 4011 actively extends and retracts, the swing arm 500 can be indirectly controlled to swing around the main shaft 502 through the connecting rod 4012, and the top of the steel coil is pressed by the pressure roller 501, thereby preventing its free end from spreading out.

[0020] The main support 400 also includes a holding part 600. One side of the holding part 600 has a horizontally distributed threading part 601. The threading part 601 is a rectangular tubular structure that forms a threading channel for the free end of the steel coil to pass through. A pull-out part 602 is slidably provided at the end of the threading part 601 near the feeding roller 201. The pull-out part 602 is also a rectangular tubular structure and can slide along the length of the threading part 601 to approach or move away from the feeding roller 201. An embedded groove is formed around the circumference of the end of the threading part 601 facing the feeding roller 201, and one end of the pull-out part 602 slides into the embedded groove. The threading part 601 and the pull-out part 602 have the same shape, both being rectangular tubular, and both have a flat opening design. Their inner height is approximately 3 to 5 centimeters, and their inner width is slightly greater than 1500 millimeters, which can meet the free threading requirements of most steel coils on the market. In addition, since one end of the pull-out portion 602 is fitted inside the winding portion 601, the pull-out portion 602 can slide along the length direction of the winding portion 601 to get closer to or away from the feed roller 201.

[0021] In this embodiment, the holding part 600 is also provided with a transmission assembly 700, which is in transmission cooperation with the swing arm 500 and the pull-out part 602 respectively, so that when the swing arm 500 swings, it drives the pull-out part 602 to slide relative to the winding part 601. Specifically, as the swing arm 500 drives the pressure roller 501 to move closer to the feeding roller 201, the transmission assembly 700 drives the pull-out part 602 to slide towards the feeding roller 201. Therefore, as the steel coil is slowly released and the coil diameter becomes smaller, the swing arm 500 will also swing slowly along with it, thereby driving the pull-out part 602 to move closer to the feeding roller 201 through the transmission assembly 700. This is to prevent the steel coil segment located between the pull-out part 602 and the steel coil from falling downward and damaging the steel coil, and at the same time to avoid hindering the continuity of feeding.

[0022] The specific structure of the transmission assembly 700 is described in detail below: The transmission assembly 700 includes a retaining rod 701, a transmission gear 702, and an arc-shaped rack 703. The retaining rod 701 is located in the gap between the retaining part 600 and the main support 400. It should be noted that the retaining part 600 and the main support 400 are not fitted together, but are fixed by a connector, so that there is a gap of not less than 3 cm between the retaining part 600 and the main support 400 to allow the retaining rod 701 and other structures to be installed. Specifically, the retaining part 600 has sliding openings 603 distributed along its length. One end of the retaining rod 701 passes through the sliding opening 603 and is fixedly connected to the pull-out part 602. The top surface of the retaining rod 701 is also provided with a driven rack 704. The transmission gear 702 is rotatably mounted on the retaining part 600 and meshes with the driven rack 704. The arc-shaped rack 703 is fixedly connected to the main shaft 502 and meshes with the transmission gear 702, so that the rotation of the main shaft 502 drives the retaining rod 701 to slide along the sliding opening 603 through the arc-shaped rack 703, the transmission gear 702, and the driven rack 704. Therefore, when the main shaft 502 drives the swing arm 500 to rotate, the arc-shaped rack 703 will also rotate, thereby indirectly driving the retaining rod 701 to move through the transmission gear 702 and the driven rack 704. Since the retaining rod 701 is fixedly connected to the pull-out part 602, it is equivalent to driving the pull-out part 602 to move.

[0023] As one embodiment and not a limitation, the upper and lower sides of the outer end of the pull-out part 602 are rotatably provided with guide plates 604. One end of the rotating shaft of the guide plate 604 passes through the holding part 600 and is provided with a circular piece 706. The holding part 600 has a strip-shaped opening 605 distributed along its own length direction for the rotating shaft of the guide plate 604 to pass through. Both guide plates 604 are rectangular smooth plates, and their length is equivalent to the opening length of the pull-out part 602. The two guide plates 604 are flared outwards in a trumpet shape, and their function is to guide the steel coil in, so that the free end of the steel coil can enter the coiling part 601 during coiling.

[0024] The retaining rod 701 has drive rods 705 movably mounted on both its upper and lower sides. The drive rods 705 and retaining rod 701 slide in a vertical direction. The edge of the disc 706 has an eccentric protrusion 707, and the drive rod 705 has a through hole through which the eccentric protrusion 707 passes. Specifically, the retaining rod 701 has openings on both its upper and lower sides for the drive rod 705 to be inserted into, and the drive rod 705 slides in these openings in a vertical direction. When the drive rod 705 moves up and down in a vertical direction, it can drive the eccentric protrusion 707 to move up and down, thereby driving the disc 706 to rotate. The side of the drive rod 705 facing the retaining part 600 also has a guide post 708, and the surface of the retaining part 600 has a guide groove 606 in an inclined direction for the guide post 708 to be inserted into. When the retaining rod 701 moves closer to the feeding roller 201, the drive rod 705 can slide along the direction of the guide groove 606 and drive the opening angle of the two guide plates 604 to decrease. The through hole on the drive rod 705 is elongated, and its longitudinal height is equivalent to the diameter of the eccentric protrusion 707, so that the drive rod 705 can flexibly control the rotation of the disc 706.

[0025] Specifically, the two guide grooves 606 form a figure-eight shape, and the distance between the two ends closest to the feeding roller 201 is smaller. Therefore, when the pull-out part 602 moves closer to the feeding roller 201, the two drive rods 705 can move closer to each other under the guidance of the guide grooves 606, and indirectly control the opening angle of the two guide plates 604 to decrease through the eccentric protrusion 707 and the disc 706. The function is to further constrain the steel coil and prevent the steel coil from hanging down and dragging on the ground.

[0026] It is worth mentioning that the reason for designing the two guide plates 604 in this embodiment, and for having a relatively large opening angle for the guide plates 604 in the initial state, is to facilitate the insertion of the free end of the steel coil into the coiling part 601 during coiling. Therefore, in the initial state, since the opening of the coiling part 601 is relatively narrow and the steel coil is generally relatively wide, the guide plates 604 make it easier for the operator to insert the free end of the steel coil into the coiling part 601 during the coiling operation. As the steel coil is gradually released and the coil diameter decreases, the distance between the outer surface of the steel coil and the coiling part 601 increases. To prevent the middle section of the steel coil from sagging downwards, this embodiment gradually moves the pull-out part 602 closer to the steel coil to reduce the distance between the steel coil and the pull-out part 602. At the same time, the guide plates 604 gradually close to further constrain the steel coil and prevent sagging.

[0027] Example 2: Please participate Figures 1 to 8 This application also proposes a feeding method for steel coil processing, applicable to the feeding device in Embodiment 1 above, comprising the following steps: First, the steel coil to be loaded is conveyed by the bearing seat 300, so that the steel coil is fitted onto the loading roller 201. It should be noted that after the steel coil is fitted onto the loading roller 201, the tiles around the loading roller 201 can expand outward under the action of the loading drive component and stick tightly to the inner surface of the steel coil, thereby fixing the steel coil.

[0028] The pressure roller 501 at the end of the swing arm 500 presses the steel coil down from top to bottom to prevent it from unraveling. Then, the feeding roller 201 is activated to slowly release the steel coil. The drive assembly 401 controls the swing of the swing arm 500, ultimately pressing the coil firmly against the upper surface of the steel coil via the pressure roller 501. Since the pressure roller 501 is rotatably mounted at the end of the swing arm 500, it does not obstruct the rotation and release of the steel coil. It is important to note that as the steel coil is gradually released and its diameter decreases, the swing arm 500 will also gradually swing downwards under the action of the drive assembly 401, always pressing against the outer surface of the steel coil.

[0029] The worker passes the free end of the steel coil through the coiling section 601. As the steel coil is continuously released, the free end of the steel coil can extend forward from the coiling section 601 to supply subsequent processing equipment. The rear end of the coiling section 601 is provided with a pull-out section 602. The rear end of the pull-out section 602 has two guide plates 604. The function of the guide plates 604 is to expand the opening range to facilitate the insertion of the steel coil.

[0030] As the steel coil is gradually released and its diameter decreases, the end of the swing arm 500 continuously presses downward. The swing of the swing arm 500 can be controlled by the transmission assembly 700 to move the pull section 602 closer to the steel coil, thereby preventing the steel coil section located between the pull section 602 and the steel coil from drooping downward. As the end of the swing arm 500 gradually swings downward, the transmission assembly 700 can gradually control the pull section 602 to move closer to the upward roller 201, thereby reducing the distance between the outer surface of the steel coil and the pull section 602. At the same time, the openings of the two guide plates 604 gradually narrow, which further constrains the free end of the steel coil, preventing it from drooping downward and affecting the continuous feeding of the steel coil, thus ensuring the continuity and safety of the feeding action.

[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for steel coil processing, comprising: The main box body is equipped with a steel beam seat at the lower end; A feeding roller is rotatably mounted on one side of the main housing, and the axial direction of the feeding roller is perpendicular to the corresponding side wall of the main housing. A bearing seat that slides on the steel beam seat is used to support the steel coil; Its features are, A main support is provided on the main housing and on the adjacent side wall of the side wall where the feeding roller is located. A swing arm is rotatably provided on the main support. A pressure roller for pressing the steel coil is rotatably provided at the end of the swing arm. A drive assembly for driving the swing arm to swing relative to the main support is also provided on the main support. The main support is also provided with a holding part. One side of the holding part is provided with a coiling part distributed in the horizontal direction. The coiling part is a tubular structure with a rectangular cross-section and forms a coiling channel for the free end of the steel coil to pass through. The end of the coiling part near the feeding roller is also provided with a pull-out part. The pull-out part is a tubular structure with a rectangular cross-section and can slide along the length direction of the coiling part to approach or move away from the feeding roller. The holding part is also provided with a transmission component, which is in transmission cooperation with the swing arm and the pull part respectively, so as to drive the pull part to slide relative to the winding part when the swing arm swings; wherein, when the swing arm drives the pressure roller to move closer to the feeding roller, the transmission component drives the pull part to slide towards the feeding roller.

2. The feeding device for steel coil processing according to claim 1, characterized in that, One end of the swing arm is provided with a main shaft, which is rotatably connected to the main support, and the swing arm is located directly above the holding part.

3. The feeding device for steel coil processing according to claim 2, characterized in that, The drive assembly includes a drive cylinder and a connecting rod. The cylinder body of the drive cylinder is hinged to the side wall of the main housing. The movable end of the drive cylinder is hinged to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the main shaft.

4. A feeding device for steel coil processing according to claim 2, characterized in that, The end of the winding section facing the feeding roller has an inner groove around its circumference, and one end of the pulling section is slidably embedded in the inner groove.

5. A feeding device for steel coil processing according to claim 4, characterized in that, The transmission assembly includes a retaining rod, a transmission gear, and an arc-shaped rack, with the retaining rod located within the gap between the retaining part and the main support. The retaining part has sliding openings distributed along its own length direction. One end of the retaining rod passes through the sliding opening and is fixedly connected to the pull-out part. The top surface of the retaining rod is also provided with a driven rack. The transmission gear is rotatably mounted on the retaining part and meshes with the driven rack. The arc-shaped rack is fixedly connected to the main shaft and meshes with the transmission gear, so that the rotation of the main shaft drives the retaining rod to slide along the sliding opening through the arc-shaped rack, the transmission gear and the driven rack.

6. A feeding device for steel coil processing according to claim 5, characterized in that, The outer end of the pull-out part is provided with guide plates on both the upper and lower sides. One end of the rotating shaft of the guide plate passes through the holding part and is provided with a circular piece. The holding part is provided with strip-shaped openings distributed along its own length direction for the rotating shaft of the guide plate to pass through. Both the upper and lower sides of the retaining rod are movably provided with driving rods. The driving rods and the retaining rod slide in the vertical direction. The edge of the disc is provided with an eccentric protrusion. The driving rod is provided with a through hole for the eccentric protrusion to pass through. The drive rod is also provided with a guide post on the side facing the holding part, and the surface of the holding part is provided with a guide groove for the guide post to be embedded in along the inclined direction; when the holding rod moves closer to the feeding roller, the drive rod can slide along the direction of the guide groove and drive the opening angle of the two guide plates to decrease.

7. A feeding device for steel coil processing according to claim 1, characterized in that, The steel beam seat is equipped with a linear module, which is used to drive the bearing seat to slide along the length of the steel beam seat.

8. A feeding device for steel coil processing according to claim 1, characterized in that, The top surface of the support seat is provided with a receiving seat that slides vertically. The support seat is also provided with a lifting drive assembly, which is used to drive the receiving seat to lift.

9. A feeding device for steel coil processing according to claim 8, characterized in that, The top surface of the receiving seat forms an inwardly recessed V-shaped bearing surface, which is used to support the steel coil to be loaded.

10. A feeding method for steel coil processing, applicable to the feeding device according to any one of claims 1 to 9, characterized in that, Includes the following steps: The steel coil to be loaded is conveyed by the support seat, so that the steel coil is mounted on the loading roller; The steel coil is pressed down from top to bottom by the pressure roller at the end of the swing arm to prevent it from unraveling, and then the feeding roller is started to slowly release the steel coil. Workers pass the free end of the steel coil through the coiling section. As the steel coil is continuously released, the free end can extend forward from the coiling section to supply subsequent processing equipment. As the steel coil is gradually released and its diameter decreases, the end of the swing arm presses down continuously. The swing of the swing arm can be controlled by the transmission assembly to move the pull section closer to the steel coil, thereby preventing the steel coil section located between the pull section and the steel coil from drooping downwards.

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